Document:

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                                                                   EXHIBIT 10.44

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                              BRIDGE LOAN AGREEMENT

                            dated as of May 27, 1999

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                                  by and among

                 PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.
                                   as Borrower

                   THE MEMBERS OF BORROWER GROUP NAMED HEREIN

                            THE LENDERS PARTY HERETO

                                 CITIBANK, N.A.
                             as Administrative Agent

                                SOCIETE GENERALE
                              as Syndication Agent

                                       and

                               ABN AMRO BANK N.V.
                             as Documentation Agent

                       Milbank, Tweed, Hadley & McCloy LLP

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                                TABLE OF CONTENTS

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SECTION 1.  DEFINITIONS..........................................................................    2

   1.1    DEFINED TERMS.........................................................................     2
   1.2    OTHER INTERPRETIVE PROVISIONS.........................................................    23
   1.3    ACCOUNTING TERMS; GAAP................................................................    23

SECTION 2.  THE CREDITS.........................................................................    24

   2.1    SYNDICATED WORKING CAPITAL FACILITY...................................................    24
   2.2    VENDOR WORKING CAPITAL FACILITY.......................................................    25
   2.3    CAPITALIZED INTEREST FACILITY.........................................................    25
   2.4    LETTERS OF CREDIT.....................................................................    25
   2.5    LOANS AND BORROWINGS..................................................................    30
   2.6    REQUESTS FOR BORROWINGS...............................................................    31
   2.7    FUNDING OF BORROWINGS.................................................................    34
   2.8    INTEREST ELECTIONS....................................................................    35
   2.9    TERMINATION AND REDUCTION OF, AND INCREASES IN, COMMITMENTS; FURTHER SYNDICATION......    36
   2.10   REPAYMENT OF LOANS....................................................................    39
   2.11   EVIDENCE OF DEBT......................................................................    39
   2.12   INTEREST..............................................................................    41
   2.13   ADDITIONAL INTEREST ON EURODOLLAR LOANS; INTEREST RATE DETERMINATIONS;
          ALTERNATE RATE OF INTEREST............................................................    43
   2.14   VOLUNTARY PREPAYMENTS.................................................................    43
   2.15   MANDATORY PREPAYMENTS.................................................................    44
   2.16   SYNDICATION...........................................................................    45

SECTION 3.  FEES; CONSIDERATION FOR QUALCOMM GUARANTY...........................................    45

   3.1    FEES..................................................................................    45
   3.2    CONSIDERATION FOR QUALCOMM GUARANTY...................................................    46

SECTION 4.  YIELD PROTECTION; PAYMENTS; TAXES; ETC..............................................    46

   4.1    INCREASED COSTS.......................................................................    46
   4.2    BREAK FUNDING PAYMENTS................................................................    47
   4.3    ILLEGALITY............................................................................    47
   4.4    TAXES.................................................................................    48
   4.5    PAYMENTS GENERALLY; PRO RATA TREATMENT; SHARING OF SET-OFFS...........................    49
   4.6    MITIGATION OBLIGATIONS; REPLACEMENT OF LENDERS........................................    51

SECTION 5.  CONDITIONS PRECEDENT TO LOANS AND LETTERS OF CREDIT.................................    52

   5.1    CONDITIONS PRECEDENT TO THE INITIAL SYNDICATED WORKING CAPITAL LOANS AND THE
          FIRST LETTER OF CREDIT................................................................    52
   5.2    CONDITIONS PRECEDENT TO THE INITIAL VENDOR WORKING CAPITAL LOANS, THE INITIAL
          CAPITALIZED INTEREST LOANS, AND THE QUALCOMM SATISFACTION OF CONDITIONS PRECEDENT
          LETTER................................................................................    54
   5.3    FURTHER CONDITIONS PRECEDENT TO CERTAIN LOANS AND LETTERS OF CREDIT...................    57
   5.4    CONDITIONS PRECEDENT TO CAPITALIZED INTEREST LOANS AND TO CERTAIN TERM LOANS..........    57
   5.5    FURTHER CONDITIONS PRECEDENT TO SYNDICATED WORKING CAPITAL LOANS AND LETTERS OF
          CREDIT................................................................................    58

SECTION 6.  REPRESENTATIONS, WARRANTIES AND AGREEMENTS..........................................    58

   6.1    SENIOR DEBT; NON-VENDOR FINANCING.....................................................    59
   6.2    APPROVALS.............................................................................    59
   6.3    CORPORATE STATUS......................................................................    59
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   6.4    CORPORATE POWER AND AUTHORITY.........................................................    59
   6.5    VALID AND BINDING OBLIGATION..........................................................    59
   6.6    NO VIOLATION..........................................................................    60
   6.7    PERMITS...............................................................................    60
   6.8    FINANCIAL STATEMENTS; FINANCIAL CONDITION; UNDISCLOSED LIABILITIES; ETC...............    60
   6.9    LITIGATION; LABOR DISPUTES............................................................    61
   6.10   TAX RETURNS AND PAYMENTS..............................................................    61
   6.11   CAPITALIZATION........................................................................    62
   6.12   SUBSIDIARIES..........................................................................    62
   6.13   COMPLIANCE WITH APPLICABLE LAW........................................................    63
   6.14   PROPERTY RIGHTS.......................................................................    63
   6.15   SINGLE-PURPOSE........................................................................    63
   6.16   FEES AND ENFORCEMENT..................................................................    63
   6.17   FOREIGN EXCHANGE APPROVALS............................................................    64
   6.18   LIENS.................................................................................    64
   6.19   TITLE.................................................................................    64
   6.20   LOAN DOCUMENTS........................................................................    64
   6.21   CERTAIN ANCILLARY SERVICES............................................................    65
   6.22   ENVIRONMENTAL MATTERS.................................................................    65
   6.23   INVESTMENT COMPANY ACT................................................................    65
   6.24   TRUE AND COMPLETE DISCLOSURE..........................................................    65
   6.25   NO ADDITIONAL FEES....................................................................    66
   6.26   USE OF PROCEEDS.......................................................................    66
   6.27   INSURANCE.............................................................................    66
   6.28   PRIVATE ACTIVITIES; IMMUNITY..........................................................    66
   6.29   NO SUBORDINATION......................................................................    67
   6.30   LICENSES..............................................................................    67
   6.31   OPERATOR AGREEMENTS...................................................................    67
   6.32   EMPLOYEE BENEFIT PLANS; EMPLOYMENT MATTERS............................................    67
   6.33   YEAR 2000.............................................................................    68
   6.34   INDEBTEDNESS..........................................................................    68
   6.35   BUDGET................................................................................    68

SECTION 7.  AFFIRMATIVE COVENANTS...............................................................    68

   7.1    INFORMATION COVENANTS.................................................................    69
   7.2    PERMITS; ENFORCEMENT OF TRANSACTION DOCUMENTS.........................................    72
   7.3    PROPER LEGAL FORM.....................................................................    73
   7.4    TRANSLATIONS..........................................................................    73
   7.5    NEW SUBSIDIARIES......................................................................    73
   7.6    CONSENTS, APPROVALS...................................................................    74
   7.7    USURY PERMIT..........................................................................    74

SECTION 8.  NEGATIVE COVENANTS..................................................................    74

   8.1    NO PREPAYMENTS........................................................................    74
   8.2    FUNDAMENTAL CHANGES...................................................................    74
   8.3    IMMUNITY..............................................................................    74
   8.4    ASSET SALES...........................................................................    75
   8.5    RESTRICTED PAYMENTS...................................................................    75

SECTION 9.  EVENTS OF DEFAULT...................................................................    75

   9.1    EVENTS OF DEFAULT.....................................................................    75
   9.2    REMEDIES..............................................................................    78
   9.3    EXERCISE OF REMEDIES..................................................................    78
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SECTION 10. ADMINISTRATIVE AGENT................................................................    79

   10.1   APPOINTMENT OF ADMINISTRATIVE AGENT...................................................    79
   10.2   RIGHTS AND POWERS AS LENDER...........................................................    79
   10.3   DELEGATION OF DUTIES BY ADMINISTRATIVE AGENT..........................................    79
   10.4   LIABILITY OF ADMINISTRATIVE AGENT.....................................................    79
   10.5   RELIANCE BY ADMINISTRATIVE AGENT......................................................    80
   10.6   NON-RELIANCE BY LENDERS...............................................................    80
   10.7   INDEMNIFICATION.......................................................................    80
   10.8   SUCCESSOR ADMINISTRATIVE AGENT........................................................    81

SECTION 11. MISCELLANEOUS.......................................................................    81

   11.1   NOTICES...............................................................................    81
   11.2   WAIVERS; AMENDMENTS...................................................................    82
   11.3   EXPENSES, INDEMNITY, DAMAGE WAIVER....................................................    83
   11.4   SUCCESSORS AND ASSIGNS; PARTICIPATIONS................................................    84
   11.5   SURVIVAL..............................................................................    86
   11.6   COUNTERPARTS; INTEGRATION; EFFECTIVENESS..............................................    87
   11.7   RIGHT OF SET-OFF......................................................................    87
   11.8   SEVERABILITY..........................................................................    87
   11.9   GOVERNING LAW; JURISDICTION; CONSENT TO SERVICE OF PROCESS............................    87
   11.10  WAIVER OF JURY TRIAL..................................................................    89
   11.11  HEADINGS..............................................................................    89
   11.12  CONFIDENTIALITY.......................................................................    89
   11.13  INTEREST RATE LIMITATION..............................................................    90
   11.14  CURRENCY OF PAYMENT...................................................................    90
   11.15  JUDGMENT CURRENCY.....................................................................    90
   11.16  ENGLISH LANGUAGE......................................................................    90
   11.17  REINSTATEMENT.........................................................................    91
   11.18  QUALCOMM RIGHT OF SUBROGATION.........................................................    91
   11.19  NO THIRD-PARTY BENEFICIARIES..........................................................    91
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                                        EXHIBITS

Exhibit A                          Form of Pagare
Exhibit B-1                        Form of Borrowing Request
Exhibit B-2                        Form of Budget Breakdown Certificate
Exhibit C                          Form of Capitalized Interest Loan Request
Exhibit D                          Form of Interest  Election Request
Exhibit E                          Form of Assignment and Assumption Agreement
Exhibit F                          Amendment No. 1 to Common Agreement
Exhibit G                          Amendment No. 1 to QUALCOMM Credit Agreement
Exhibit H                          Form of Administrative Questionnaire

                                        SCHEDULES

Schedule 2.1                       Syndicated Working Capital Commitments
Schedule 2.2                       Vendor Working Capital Commitments
Schedule 2.3                       Capitalized Interest Commitments
Schedule 6.10                      Withholding Taxes
Schedule 6.11                      Capitalization
Schedule 6.16                      Unpaid Taxes
Schedule 6.22                      Environmental Matters
Schedule 6.25                      Broker's Fees
Schedule 6.30                      Licenses
Schedule 6.34                      Indebtedness

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                              BRIDGE LOAN AGREEMENT

       This BRIDGE LOAN AGREEMENT (this "Agreement"), dated as of May 27, 1999,
among PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V., a sociedad anonima de
capital variable organized under the laws of Mexico ("Borrower"), PEGASO
TELECOMUNICACIONES, S.A. DE C.V., a sociedad anonima de capital variable
organized under the laws of Mexico, PEGASO PCS, S.A. DE C.V., a sociedad anonima
de capital variable organized under the laws of Mexico, PEGASO RECURSOS HUMANOS,
S.A. DE C.V., a sociedad anonima de capital variable organized under the laws of
Mexico, QUALCOMM INCORPORATED, a corporation organized under the laws of
Delaware, ("QUALCOMM") and the Syndicated Lenders (as defined below) from time
to time party hereto (each Syndicated Lender, together with QUALCOMM, a "Lender"
and, collectively, "Lenders"), CITIBANK, N.A., a national banking association,
in its capacity as administrative agent for Lenders ("Administrative Agent"),
SOCIETE GENERALE, as Syndication Agent, and ABN AMRO BANK N.V., as Documentation
Agent.

                                   WITNESSETH

              A. Borrower desires to obtain from the Working Capital Lenders (as
defined below) Working Capital Facilities (as defined below) in the aggregate
principal amount of up to One Hundred Million Dollars ($100,000,000) for the
purposes of financing Borrower's working capital needs and for capital
expenditures and other purposes, all as more particularly described below;

              B. Borrower desires to obtain from the Capitalized Interest
Lenders (as defined below) a credit facility to finance the interest payments,
when and as due, under the Working Capital Facilities, in an aggregate principal
amount of up to Fifteen Million Dollars ($15,000,000), all as more particularly
described below; and

              C. Lenders are willing to supply such financing subject to the
terms and conditions and in reliance on the representations and warranties set
forth in this Agreement and the other documents executed in connection herewith;

              NOW, THEREFORE, in consideration of the foregoing premises and the
mutual promises and covenants set forth below, Borrower, Lenders and
Administrative Agent agree as follows:

SECTION 1. DEFINITIONS

       1.1 Defined Terms. As used in this Agreement, the following terms have
the respective meanings set forth below or set forth in the referenced provision
following such term:

              "Additional Lender" shall have the meaning assigned in Section
2.9(f).

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              "Administrative Agent" shall have the meaning provided in the
first paragraph of this Agreement.

              "Administrative Agent's Account" shall mean such account located
in New York, New York as is specified in writing by Administrative Agent to
Borrower and Lenders from time to time.

              "Administrative Agent's Fee Letter" shall mean that letter
agreement dated the date hereof by and between Borrower and Administrative Agent
regarding payment of fees in connection with Administrative Agent's duties in
its capacity as Administrative Agent.

              "Administrative Questionnaire" shall mean an Administrative
Questionnaire in a form supplied by the Administrative Agent.

              "Affiliate" shall mean, with respect to a specified Person, any
other Person which directly or indirectly controls, or is under common control
with, such Person. As used in this definition, "control" (including, with its
correlative meanings, "controlled by" and "under common control with") shall
mean possession, directly or indirectly, of power to direct or cause the
direction of management or policies (whether through ownership of securities or
partnership or other ownership interests, by contract or otherwise), provided
that, in any event, any Person which owns directly or indirectly 10% or more of
the securities having ordinary voting power for the election of directors or
other governing body of a corporation or 10% or more of the partnership or other
ownership interests of any other Person will be deemed to control such
corporation or other Person. Notwithstanding the foregoing, (i) no individual
shall be deemed to be an Affiliate of a Person solely by reason of his or her
being a director, committee member, officer or employee of such person and (ii)
each member of the Borrower Group and each of their respective Affiliates shall
be deemed to be an Affiliate of each other member of the Borrower Group.

              "Agreement" shall mean this Bridge Loan Agreement, as the same may
be from time to time further modified, amended, supplemented or restated.

              "Alcatel" shall mean Alcatel, a corporation duly organized under
the laws of France.

              "Alcatel Credit Agreement" shall mean the Credit Agreement, dated
as of December 15, 1998, among Borrower, the lenders thereunder and Citibank
International plc, as Alcatel Administrative Agent.

              "Applicable Law" shall mean any constitution, statute, law, rule,
regulation, ordinance, judgment, order, decree, Permit, or any published
directive, guideline, requirement or other governmental restriction which has
the force of law, or any determination by, or interpretation of any of the
foregoing by, any judicial authority, binding on a given Person whether in
effect as of the date hereof or as of any date thereafter, including all
applicable Environmental Laws.

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              "Applicable Margin" shall mean (i) for Eurodollar Loans, six
percent (6%); and (ii) for Base Rate Loans, five percent (5%); provided that in
each case, the Applicable Margin shall increase by one-half of one percent
(0.5%) on each Interest Adjustment Date.

              "Assignment Agreement" shall mean the Assignment and Assumption
Agreement in the form of Exhibit E (appropriately completed).

              "Authorized Officer" shall mean, with respect to any Person, the
Managing Director, the President, the Vice President, the Chief Financial
Officer, the Assistant Vice President, the Treasurer, the Assistant Treasurer or
equivalent officers of such Person and, with respect to Borrower, shall include
any officer or representative holding any of the foregoing positions (or their
equivalent) whose name appears on a certificate of incumbency delivered
concurrently with the execution of this Agreement, as such certificate of
incumbency may be amended, supplemented or replaced from time to time to
identify names of the individuals then holding such offices or the names of such
representatives and the capacity in which they are acting.

              "Availability Period" shall mean, for any Lender, (i) with respect
to such Lender's Syndicated Working Capital Commitment, the period from the
Closing Date until the Commitment Termination Date applicable to the Syndicated
Working Capital Facility, (ii) with respect to such Lender's Vendor Working
Capital Commitment, the period from (A) the date that is 90 days after the
Closing Date, if such Lender is QUALCOMM, or such earlier date as QUALCOMM may
elect by written notice to Borrower and Administrative Agent, or (B) the Closing
Date, if such Lender is an Additional Lender acquiring such Vendor Working
Capital Commitment in accordance with Section 2.9(f), until, in each case, the
Commitment Termination Date applicable to the Vendor Working Capital Facility,
(iii) with respect to such Lender's Term Loan Commitment, the Commitment
Termination Date applicable to the Syndicated Working Capital Facility, and (iv)
with respect to such Lender's Capitalized Interest Commitment, the period from
the Closing Date until the Commitment Termination Date applicable to the
Capitalized Interest Facility.

              "Base Rate" shall mean, for any period, a fluctuating interest
rate per annum in effect from time to time, which rate per annum shall at all
times be equal to the higher of:

              (a) the rate of interest announced publicly by Citibank in New
York, New York from time to time as Citibank's base rate; and

              (b) 1/2 of one percent per annum above the Federal Funds Rate for
such period.

              "Base Rate Loan" shall mean any Loan bearing interest at the Base
Rate.

              "Borrower" shall have the meaning provided in the first paragraph
of this Agreement.

              "Borrower Group" shall mean (i) Borrower, (ii) Holdings, (iii)
Pegaso PCS, (iv) Personnel Co. (v) the respective Subsidiaries of each of the
foregoing in existence as of the

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Closing Date, and (vi) any Subsidiary of any of the foregoing which is formed,
established, purchased or acquired after the Closing Date as described in
Section 7.5. Any reference to a "member" or to a "member of the Borrower Group"
shall mean one or more of the Persons described in clause (i) through (vi) of
this definition.

              "Borrower Obligations" shall mean all obligations of Borrower now
existing or hereinafter arising, direct or indirect, absolute or contingent, due
or to become due, under this Agreement, the Pagares or any other Loan Document
to which Borrower is a party, including, without duplication, (i) payment of the
principal of and interest on the Loans and the reimbursement obligations of
Borrower in connection with the Letters of Credit, (ii) payment of all fees,
expenses, indemnities and other amounts under the Loan Documents, and (iii) all
other obligations, duties and liabilities of Borrower under or in connection
with the Loan Documents (whether or not evidenced by any note, bond or other
instrument and whether or not for the payment of money).

              "Borrowing" shall mean the incurrence by Borrower of Loans of the
same Type, on the same date, and under the same Facility, and, in the case of
Eurodollar Loans, having the same Interest Period.

              "Borrowing Request" shall mean a request by Borrower for a
Borrowing in accordance with Section 2.6.

              "Budget" shall mean the Initial Budget, as the same shall be
updated by Borrower with the prior written consent of QUALCOMM.

              "Budget Breakdown" shall have the meaning assigned in Section
2.6(b).

              "Business" shall mean the business of development, operation and
use of the Licenses (and, subject to the terms and conditions set forth in the
Vendor Facilities, other new licenses and/or concessions issued to any member of
the Borrower Group) and pursuant thereto the installation and operation of
terrestrial-based wireless telecommunications systems in Mexico and, to the
extent integral to such wireless terrestrial-based telecommunications systems,
long-distance telecommunications systems in Mexico.

              "Business Day" shall mean any day other than a Saturday, Sunday or
other day on which commercial banks are authorized or required by law to close
in New York City or in the Federal District of Mexico; provided that, when used
in conjunction with any Eurodollar Loan, the term "Business Day" shall also
exclude any day on which banks are not open for dealings in dollar deposits in
the London interbank market.

              "Business Plan" shall mean the Business Plan dated as of March 19,
1999, as updated from time to time as provided in Section 7.1(d).

              "Capital Lease" as applied to any Person, shall mean any lease of
any property (whether real, personal or mixed) by that Person as lessee which,
in conformity with GAAP, is accounted for as a capital lease on the balance
sheet of such Person.

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              "Capital Stock" of any Person shall mean any and all shares,
interest, rights to purchase, warrants, options, participations or other
equivalents of or interest in (however designated) the common or preferred
equity or preference share capital of such Person, including partnership
interests.

              "Capitalized Interest Commitment" shall mean, with respect to each
Capitalized Interest Lender, the amount set forth on Schedule 2.3 as such
Lender's "Capitalized Interest Commitment," as such amount may be adjusted from
time to time pursuant to the terms of this Agreement.

              "Capitalized Interest Commitment Percentage" shall mean, with
respect to any Capitalized Interest Lender, the percentage equivalent of such
Lender's Capitalized Interest Commitment divided by the Total Capitalized
Interest Commitment.

              "Capitalized Interest Facility" shall mean the extension of credit
to Borrower by the Capitalized Interest Lenders as set forth in Section 2.3.

              "Capitalized Interest Lenders" shall mean any Lender having a
Capitalized Interest Commitment.

              "Capitalized Interest Loans" shall mean loans made to Borrower by
Capitalized Interest Lenders under the Capitalized Interest Facility pursuant to
this Agreement.

              "Capitalized Interest Loan Request" shall have the meaning set
forth in Section 2.6(c).

              "Capitalized Lease Obligations" shall mean all obligations under
Capital Leases of any Person in each case taken at the amount thereof accounted
for as liabilities in accordance with GAAP.

              "Cash Flow Forecast" shall mean the Initial Cash Flow Forecast, as
the same shall be updated as required pursuant to Section 7.1(e).

              "Change of Control" shall mean (i) the failure at any time and for
any reason prior to the consummation of a Qualified Public Offering of (a) the
Original Mexican Shareholders to own at least 51% of the voting Capital Stock of
Holdings, or (b) Leap to own, directly or indirectly through a wholly-owned
Subsidiary, at least 20% of the Capital Stock of Holdings, or (ii) at any time
after the consummation of a Qualified Public Offering, any transaction or series
of transactions whereby (A) any Person or two or more Persons acting in concert
shall have acquired beneficial ownership (within the meaning of Rule 13d-3 of
the Securities and Exchange Commission under the Securities Exchange Act of
1934), directly or indirectly, of voting Capital Stock of Holdings representing
35% or more of the combined voting power of all voting stock of Holdings, or (B)
during any period of 18 consecutive months, commencing before or after the date
of this Agreement, individuals who at the beginning of such 18 month period were
directors of Holdings, together with such directors who are approved by
directors who were directors at the beginning of such period, shall cease for
any reason to constitute a majority of board of directors of Holdings; or (iii)
any Person or two or more Persons acting in concert shall have

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acquired by contract or otherwise, or shall have entered into a contract or
arrangement that, upon consummation, will result in its or their acquisition of
the power to exercise, directly or indirectly, a controlling influence over the
management or policies of Holdings, or (iv) the failure for any reason of
Holdings to own (beneficially and of record) all of the Capital Stock of each of
Borrower, Pegaso, PCS and Personnel Co. (other than one share of such Capital
Stock which is owned, and shall continue to be owned, by another member of the
Borrower Group). Notwithstanding the foregoing, any such transaction or series
of transactions described in clause (ii) above shall not constitute a Change of
Control if the Original Mexican Shareholders, Leap and their wholly-owned
Subsidiaries continue to own, directly or indirectly, in the aggregate a greater
percentage of the voting Capital Stock of Holdings than any other Person or two
or more Persons acting in concert.

              "Charter Documents" shall mean, with respect to any Person, the
articles of incorporation, by-laws, partnership agreements or such other
documents or instruments which are required to be registered or lodged in the
place of incorporation or organization of such Person and which establish the
legal existence of such Person. With respect to Holdings, the term "Charter
Documents" shall also include the Joint Venture Agreement.

              "Citibank" shall mean Citibank, N.A., a national banking
association.

              "Class", when used in reference to any Loan or Borrowing, refers
to whether such Loan, or the Loans comprising such Borrowing, are Syndicated
Working Capital Loans, Term Loans, Vendor Working Capital Loans or Capitalized
Interest Loans.

              "Closing Date" shall mean the date upon which each condition set
forth in Section 5.1 has been satisfied, or waived by each Lender.

              "Commitment" shall mean, (a) with respect to each Syndicated
Lender, its Syndicated Working Capital Commitment or its Term Loan Commitment,
as the case may be, (b) with respect to each Vendor Working Capital Lender, its
Vendor Working Capital Commitment, and (c) with respect to each Capitalized
Interest Lender, its Capitalized Interest Commitment.

              "Commitment Termination Date" shall mean, for any Lender, (a) with
respect to such Lender's Syndicated Working Capital Commitment, the date that is
364 days after Closing Date, subject to Section 2.10(b), (b) with respect to
such Lender's Vendor Working Capital Commitment, the Scheduled Maturity Date,
and (c) with respect to such Lender's Capitalized Interest Commitment, the
Scheduled Maturity Date; provided, in each case, that if any such date is not a
Business Day, the relevant Commitment Termination Date for such Lender shall be
the immediately preceding Business Day. When the term "Commitment Termination
Date" is used in this Agreement without reference to any particular Lender or
Facility, such term shall, in such instance, be deemed to be a reference to the
latest Commitment Termination Date of any of the Lenders under any Facilities
then in effect hereunder.

              "Common Agreement" shall mean the Common Agreement dated as of
December 15, 1998 among each member of the Borrower Group, Citibank N.A., as
Intercreditor Agent, Citibank Mexico, S.A., Grupo Financiero Citibank, as
Collateral Agent, Citibank International

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plc, as Alcatel Administrative Agent, and ABN AMRO Bank N.V., as QUALCOMM
Administrative Agent.

              "Contingent Obligations" shall mean as to any Person any
obligation of such Person Guaranteeing or intending to Guarantee any
Indebtedness ("primary obligations") of any other Person (the "primary obligor")
in any manner, whether directly or indirectly, including any obligation of such
Person, whether or not contingent, (a) to purchase any such primary obligation
or any property constituting direct or indirect security therefor, (b) to
advance or supply funds (i) for the purchase or payment of any such primary
obligation or (ii) to maintain working capital or equity capital of the primary
obligor or otherwise to maintain the net worth or solvency of the primary
obligor, (c) to purchase property, securities or services primarily for the
purpose of assuring the owner of any such primary obligation of the ability of
the primary obligor to make payment of such primary obligation or (d) otherwise
to assure, indemnify or hold harmless the owner of such primary obligation
against loss in respect thereof (other than indemnity obligations arising in the
ordinary course of business), provided, however, that the term Contingent
Obligation shall not include endorsements of instruments for deposit or
collection in the ordinary course of business. The amount of any Contingent
Obligation shall be deemed to be an amount equal to the stated or determinable
amount of the primary obligation in respect of which such Contingent Obligation
is made or, if not stated or determinable, the maximum reasonably anticipated
liability in respect thereof (assuming such Person is required to perform
thereunder) as determined in good faith.

              "Counter-Guarantors" shall mean collectively Leap and Alejandro
Burillo Azcarraga.

              "Counter-Guaranties" shall mean collectively each of those
guaranty agreements, dated as of the date hereof, executed by the
Counter-Guarantors, respectively, in favor of QUALCOMM.

              "Covered Pops" shall mean, as of any date of determination, Pops
for those geographical areas as to which (a) Borrower has the right under valid,
enforceable and effective Licenses owned by Borrower to provide PCS and WLL
services, and (b) Borrower has, as of such date of determination, constructed or
intends to construct facilities to provide such services.

              "Deemed Capitalized Interest Loan Request" shall have the meaning
set forth in Section 2.6(c).

              "Default" shall mean any event, act or condition which, with the
giving of notice, lapse of time, fulfillment of any condition or any combination
thereof, would become an Event of Default.

              "Dollars" or "$" shall mean the lawful currency of the United
States.

              "Eligible Assignee" shall mean (i) a commercial bank organized
under the laws of the United States, or any state thereof, (ii) a commercial
bank organized under the laws of any other country which is a member of the
Organization for Economic Cooperation and Development (the "OECD"), or a
political subdivision of any such country, which is acting

                                       7
<PAGE>

through a branch or agency located in the United States; which, in each case
(under clauses (i) and (ii) above) has a combined capital and surplus of at
least two hundred million dollars ($200,000,000); (iii) a Person that is
primarily engaged in the business of banking and that is a Lender or a
Subsidiary or Affiliate of a Lender; or (iv) a finance company, financial
institution, fund or any other Person that has a combined capital and surplus of
at least two hundred million dollars ($200,000,000) and is approved in writing
by Administrative Agent and QUALCOMM (which approval shall not be unreasonably
withheld); provided, however, that none of the Borrower Group or their
respective Affiliates (other than Affiliates that are commercial banks, finance
companies, financial institution or funds that would otherwise qualify
hereunder) shall qualify as an Eligible Assignee.

              "Environmental Claims" shall mean, with respect to any Person, any
notice, claim, administrative, regulatory or judicial action, suit, judgment,
demand or other communication (whether written or oral) by any other Person
alleging or asserting such Person's liability (contingent or otherwise) for
investigatory costs, cleanup or environmental remediation costs, governmental
response costs, damages to natural resources or other property of such Person,
personal injuries, fines or penalties arising out of, based on or directly or
indirectly resulting from (i) the generation, presence, use, handling,
transportation, storage, treatment, disposal or release or threatened release
into the environment of any Hazardous Material at any location, whether or not
owned by such Person, (ii) exposure to any Hazardous Materials, (iii) any fact,
circumstance, condition or occurrence forming the basis of any violation, or
alleged violation, of any Environmental Law, or (iv) any contract, agreement or
other consensual arrangement pursuant to which liability is assumed or imposed
with respect to any of the foregoing. The term "Environmental Claim" shall
include, (a) any and all claims by Governmental Authorities for enforcement,
cleanup, removal, response, remedial or other actions or damages pursuant to any
applicable Environmental Law and (b) any and all claims by any third party
seeking damages, contribution, indemnification, cost recovery, compensation or
injunctive relief resulting from Hazardous Materials or arising from alleged
injury or threat of injury to health, safety or the environment.

              "Environmental Law" shall mean any statute, law, rule, regulation,
code, ordinance, order, decree, judgment, injunction, notice, policy having the
force of law, or binding agreement issued, promulgated or entered into by any
Governmental Authority, relating in any way to the environment, preservation or
reclamation of natural resources, the management, release or threatened release
of any Hazardous Material or to health and safety matters.

              "Eurocurrency Liabilities" shall have the meaning assigned to that
term in Regulation D of the Board of Governors of the Federal Reserve System, as
in effect from time to time.

              "Eurodollar Loan" shall mean any Loan bearing interest at the
Eurodollar Rate.

              "Eurodollar Rate" shall mean, for any Interest Period for each
Eurodollar Loan, the rate per annum (rounded upward, if necessary, to the
nearest whole multiple of 1/16 of 1% per annum) appearing on Telerate Page 3750
as of 11:00 A.M. (London time) on the date (as to any Interest Period, the
"Determination Date") that is two Business Days before the first day of

                                       8
<PAGE>

such Interest Period, as LIBOR for a period equal to such Interest Period. In
the event that Telerate Page 3750 shall cease to report such LIBOR or, in the
reasonable judgement of the Required Syndicated Lenders, shall cease to
accurately reflect such LIBOR, then the "Eurodollar Rate" with respect to such
Interest Period for such Eurodollar Loan shall be the rate per annum equal to
the average of the rate per annum at which deposits in U.S. dollars are offered
by the principal office of each of the Reference Banks in London, England to
leading banks in the London interbank market at 11:00 A.M. (London time) on the
Determination Date in an amount substantially equal to such Reference Bank's
Eurodollar Loan comprising part of the related Borrowing and for a period equal
to such Interest Period or, if no Reference Bank has a Eurodollar Loan
constituting part of the related Borrowing, the rate per annum at which deposits
in U.S. dollars are offered by the principal office of Citibank in London,
England to leading banks in the London interbank market at 11:00 A.M. (London
time) on the Determination Date in an amount substantially equal to the
aggregate of all Eurodollar Loans constituting part of the related Borrowing and
for a period equal to such Interest Period. The Eurodollar Rate for any Interest
Period for each Eurodollar Loan shall be determined by Administrative Agent on
the basis of the applicable rate appearing on Telerate Page 3750 as aforesaid
(or the applicable rates furnished to and received by Administrative Agent from
the Reference Banks) on the Determination Date for such Interest Period,
subject, however, to the provisions of Section 2.13.

              "Eurodollar Rate Reserve Percentage" of any Lender for any
Interest Period for any Eurodollar Borrowing shall mean the reserve percentage
applicable during such Interest Period (or if more than one such percentage
shall be so applicable, the daily average of such percentages for those days in
such Interest Period during which any such percentage shall be so applicable)
under regulations issued from time to time by the Board of Governors of the
Federal Reserve System for determining the maximum reserve requirement
(including, without limitation, any emergency, supplemental or other marginal
reserve requirement) for such Lender with respect to liabilities or assets
consisting of or including Eurocurrency Liabilities having a term equal to such
Interest Period.

              "Event of Default" shall have the meaning set forth in Section
9.1.

              "Excluded Taxes" shall mean, with respect to Administrative Agent,
any Lender, the Issuing Bank or any other recipient of any payment to be made by
or on account of any obligation of Borrower hereunder, (a) income or franchise
taxes imposed on (or measured by) its net income by the United States, or by the
jurisdiction under the laws of which such recipient is organized or in which its
principal office is located or, in the case of any Lender, in which its
applicable lending office is located, (b) any branch profits taxes imposed by
the United States or any similar tax imposed by any other jurisdiction in which
Borrower is located and (c) in the case of a Foreign Lender (other than an
assignee pursuant to a request by Borrower under Section 4.6(b)), any
withholding tax that is imposed on amounts payable to such Foreign Lender at the
time such Foreign Lender becomes a party to this Agreement (or designates a new
lending office) or is attributable to such Foreign Lender's failure to comply
with Section 4.4(e), except to the extent that such Foreign Lender (or its
assignor, if any) was entitled, at the time of designation of a new lending
office (or assignment), to receive additional amounts from Borrower with respect
to such withholding tax pursuant to Section 4.4(a).

                                       9
<PAGE>

              "Existing Equity" shall mean the equity capital contributed to
Holdings by the Existing Shareholders and the New Shareholders (in consideration
for Capital Stock of Holdings issued to such shareholders) prior to the Closing
Date.

              "Existing Equity Commitments" shall mean (i) the commitments of
the Original Mexican Shareholders as set forth in Article III of the Joint
Venture Agreement and in resolutions adopted at various shareholder meetings
pursuant to which such Persons have become obligated to contribute specified
amounts of equity capital to Holdings on or prior to the dates specified therein
in consideration for Capital Stock to be issued by Holdings and (ii) any
obligation of Alcatel existing or under negotiation on the date hereof to
purchase equity capital of Holdings.

              "Existing Shareholders" shall have the meaning set forth in the
Joint Venture Agreement.

              "Exposure" shall mean, with respect to any Lender at any time, the
sum of the outstanding principal amount of such Lender's Loans and its LC
Exposure, if any, at such time.

              "Facility" shall mean, respectively, each of the Syndicated
Working Capital Facility, the Vendor Working Capital Facility, and the
Capitalized Interest Facility.

              "Federal Funds Rate" shall mean, for any period, a fluctuating
interest rate per annum equal for each day during such period to the weighted
average of the rates on overnight Federal funds transactions with members of the
Federal Reserve System arranged by Federal funds brokers, as published for such
day (or, if such day is not a Business Day, for the next preceding Business Day)
by the Federal Reserve Bank of New York, or, if such rate is not so published
for any day which is a Business Day, the average of the quotations for such day
on such transactions received by Administrative Agent from three Federal funds
brokers of recognized standing selected by Administrative Agent.

              "Fees" shall mean all amounts payable pursuant to, or referred to
in, Section 3.1.

              "Fiscal Year" shall mean the accounting year of any member of the
Borrower Group, as the case may be.

              "Foreign Lender" shall mean any Lender (other than QUALCOMM) that
is organized under the laws of a jurisdiction other than Mexico.

              "GAAP" shall mean generally accepted accounting principles in
Mexico as in effect from time to time, it being understood and agreed that
determinations in accordance with GAAP (i) for purposes of Section 7, including
defined terms as used therein, are subject (to the extent provided therein) to
Section 1.3 and shall include U.S. GAAP reconciliations, and (ii) for the
purposes of any other Section, to the extent that GAAP is limited, qualified or
modified in any such particular Section of this Agreement, such determinations
are subject to such limitations, qualifications or modifications as are set
forth in such Section (but only as applied to such Section).

                                       10
<PAGE>

              "Good Faith Contest" shall mean, with respect to the payment of
Taxes or any other claims or liabilities by any Person, the satisfaction of each
of the following conditions: (i) the validity or amount thereof is being
diligently contested in good faith by such Person by appropriate proceedings
timely instituted, (ii) during the period of such contest, the enforcement of
any contested item is effectively stayed, (iii) during the period of such
contest, such Person maintains sufficient reserves for the payment of such Taxes
or other claims or liabilities if determined adversely, and (iv) such contest
and any resultant failure to pay or discharge the claimed or assessed amount is
not reasonably likely to have a Material Adverse Effect.

              "Government of Mexico" shall mean the Government of Mexico,
including any instrumentality, subdivision, authority, agency, ministry or
statutory or legal entity or person (whether autonomous or not) thereof.

              "Governmental Authority" shall mean the government of the United
States, Mexico or any other nation or any political subdivision thereof, whether
state or local, and any agency, authority, instrumentality, regulatory body,
court, central bank or other entity exercising executive, legislative, judicial,
taxing, regulatory or administrative powers or functions of or pertaining to
government.

              "GTE" shall mean GTE Data Services Mexico, S.A. de C.V., a
sociedad anonima de capital variable organized under the laws of Mexico.

              "GTE Deferred Fee" shall mean the portion of the fee payable to
Leap Wireless Mexico pursuant to the Operator Agreement the payment of which is
deferred in connection with a possible investment by GTE Corporation, or any of
its affiliates, in Borrower.

              "GTE Operator Agreement" shall mean the Management and Operator
Agreement between Leap Wireless Mexico and GTE.

              "Guarantors" shall mean (i) Pegaso PCS, (ii) Personnel Co. (iii)
Holdings, and (iv) any other Subsidiary of a member of the Borrower Group
executing a Guaranty Agreement as required by Section 7.5.

              "Guaranty" by any Person shall mean any obligation, contingent or
otherwise, of such Person directly or indirectly guaranteeing in any manner any
Indebtedness of any other Person and, without limiting the generality of the
foregoing, any obligation, direct or indirect, contingent or otherwise, of such
Person (i) to purchase or pay (or advance or supply funds for the purchase or
payment of) such Indebtedness or other obligation (whether arising by virtue of
partnership arrangements, by agreement to keep-well, to purchase assets, goods,
securities or services, to take-or-pay, or to maintain financial statement
conditions or otherwise), (ii) as an account party in respect of any letter of
credit or letter of guaranty issued to support such Indebtedness or obligation
or (iii) entered into for the purpose of assuring in any other manner the
obligee of such Indebtedness of the payment thereof or to protect such obligee
against loss in respect thereof (in whole or in part); provided that the term
"Guaranty" shall not include (x) endorsements for collection or deposit in the
ordinary course of business, or (y) indemnity or hold harmless provisions
included in contracts entered into in the ordinary course of business. The term
"Guaranty" or "Guaranteed" used as a verb has a correlative meaning.

                                       11
<PAGE>

              "Guaranty Agreements" shall mean any agreement by which a
Guarantor Guarantees the obligations of Borrower under this Agreement, including
the Pegaso Guaranty Agreement.

              "Guaranty Fee" shall have the meaning set forth in the QUALCOMM
Guaranty.

              "Guaranty Trust Agreement" shall mean the Irrevocable
Administration and Guaranty Trust Agreement executed by the Counter-Guarantors
and the trustee thereunder, with respect to the Stock Options granted to the
Counter-Guarantors.

              "Hazardous Materials" shall mean (i) all explosive or radioactive
substances or wastes and all hazardous or toxic substances, wastes or other
pollutants, including petroleum or petroleum distillates, asbestos or asbestos
containing materials, polychlorinated biphenyls, radon gas, infectious or
medical wastes, (ii) any other chemicals, materials or substances defined as or
included in the definition "hazardous substances," "hazardous wastes,"
"hazardous materials," "extremely hazardous wastes," "restricted hazardous
wasted," "toxic substances," "toxic pollutants," "contaminants" or "pollutants,"
or words of similar import, under any applicable Environmental Law and (iii) any
other chemical, material, substance or waste of any nature regulated pursuant to
any Environmental Law.

              "Holdings" shall mean Pegaso Telecomunicaciones, S.A. de C.V., a
sociedad anonima de capital variable organized under the laws of Mexico.

              "Indebtedness" shall mean, as to any Person, without duplication,
(i) all indebtedness (including principal, interest, fees and charges) of such
Person for borrowed money, (ii) all obligations of such Person for the deferred
purchase price of property or services, other than the GTE Deferred Fee and
trade accounts payable arising, and accrued expenses incurred, in the ordinary
course of business so long as such trade accounts payable are payable (and are
paid) within 90 days of the date the respective goods are delivered or the
respective services are rendered, (iii) all obligations of such Person evidenced
by bonds, debentures, notes or similar instruments, (iv) the currently available
amount of all letters of credit issued for the account of such Person and all
outstanding reimbursement obligations with respect to such letters of credit,
(v) all liabilities secured by any Lien on any property owned by such Person,
(vi) any Guaranty of Indebtedness by such Person, (vii) all obligations under
trade or bankers' acceptances, (viii) Capitalized Lease Obligations, (ix) all
net obligations under agreements providing for swaps, ceiling rates, ceiling and
floor rates, contingent participation or other hedging mechanisms with respect
to the payment of interest or the convertibility of currency, (x) all
obligations under any conditional sale agreement or other title retention
agreement and (xi) all Contingent Obligations of such Person.

              "Indemnified Taxes" shall mean Taxes other than Excluded Taxes.

              "Independent Accountant" shall mean PricewaterhouseCoopers LLP or
any replacement therefor of international recognized standing appointed by the
Borrower Group.

              "Initial Budget" shall mean the Borrower Group's budget for the
18-month period commencing on the Closing Date in form and substance
satisfactory to QUALCOMM, which

                                       12
<PAGE>

shall set forth the aggregate projected expenditures of the Borrower Group for
each Permitted Usage Category set forth therein for the eighteen (18) months
following the Closing Date.

              "Initial Cash Flow Forecast" shall mean the Borrower Group's cash
flow forecast for the six month period beginning April 1, 1999, in form and
substance reasonably satisfactory to QUALCOMM.

              "Interest Adjustment Date" shall mean (i) the date that is on the
one-year anniversary of the Closing Date, and (ii) each date, prior to, but not
including, the Scheduled Maturity Date, that is ninety (90) days following the
previous Interest Adjustment Date.

              "Interest Election Request" shall mean a request by Borrower to
convert or continue a Borrowing in accordance with Section 2.8.

              "Interest Payment Date" shall mean each date on which interest is
payable on the Loans.

              "Interest Period" shall mean, with respect to each Eurodollar
Loan, the period commencing on the date of the making or continuation of or
conversion to such Eurodollar Loan and ending one, three or six months
thereafter, as Borrower may elect in the applicable Interest Election Request;
provided that:

              (a) any Interest Period (other than an Interest Period determined
pursuant to clause (c) below) that would otherwise end on a day that is not a
Business Day shall be extended to the next succeeding Business Day unless such
Business Day falls in the next calendar month, in which case such Interest
Period shall end on the immediately preceding Business Day;

              (b) any Interest Period applicable to a Eurodollar Loan that
begins on the last Business Day of a calendar month (or on a day for which there
is no numerically corresponding day in the calendar month at the end of such
Interest Period) shall, subject to clause (c) below, end on the last Business
Day of the appropriate subsequent calendar month;

              (c) no Interest Period with respect to a Eurodollar Loan of any
Facility shall end after the Commitment Termination Date for such Facility;

              (d) no Interest Period applicable to a Eurodollar Loan shall have
a duration of less than one month, and if any Interest Period applicable to such
Eurodollar Loan would be for a shorter period, such Interest Period shall not be
available hereunder; and

              (e) subject to the foregoing clauses (a) through (d), until the
earlier of (i) ninety (90) days after the Closing Date and (ii) the date on
which the Total Syndicated Working Capital Commitment is increased pursuant to
Section 2.9(f) up to $100,000,000, the Interest Period with respect to each
Eurodollar Loan shall be the period commencing on the date of the making or
continuation of or conversion to such Eurodollar Loan and ending one month
thereafter.

                                       13
<PAGE>

              "Investment Company Act of 1940" shall mean the U.S. Investment
Company Act of 1940, and the rules and regulations promulgated thereunder.

              "Issuing Bank" shall mean Citibank, in its capacity as the issuer
of Letters of Credit hereunder, and its successors in such capacity as provided
in Section 2.4(i). The Issuing Bank may, in its discretion, arrange for one or
more Letters of Credit to be issued by Affiliates of the Issuing Bank, in which
case the term "Issuing Bank" shall include any such Affiliate with respect to
Letters of Credit issued by such Affiliate.

              "Joint Venture Agreement" shall mean the Joint Venture Agreement,
entered into as of July 16, 1998 by and among the Pegaso Comunicaciones y
Servicios, S.A. de C.V., Corporativo del Valle de Mexico, S.A. de C.V.,
Alejandro Burillo Azcarraga, Leap Mexico, Holdings, International Equity
Investments, Inc., NI MEDIA EQUITY, LLC, and LAIF X Ltd., as in effect on the
Closing Date.

              "Judgment Currency" shall have the meaning set forth in Section
11.15.

              "LC Disbursement" shall mean a payment made by the Issuing Bank
pursuant to a Letter of Credit.

              "LC Exposure" shall mean, at any time, the sum of (a) the
aggregate undrawn amount of all outstanding Letters of Credit at such time plus
(b) the aggregate amount of all LC Disbursements that have not yet been
reimbursed by or on behalf of Borrower at such time. The LC Exposure of any
Syndicated Lender at any time shall be its Syndicated Working Capital Commitment
Percentage of the total LC Exposure at such time.

              "Leap" shall mean Leap Wireless International, Inc., a corporation
organized under the laws of Delaware.

              "Leap Wireless Mexico" shall mean Leap Wireless Mexico S.A. de
C.V., a corporation organized under the laws of Mexico.

              "Leap Mexico" shall mean Leap PCS Mexico, Inc., a corporation
organized under the laws of California, formerly known as QUALCOMM PCS Mexico,
Inc.

              "Lenders" shall mean the Syndicated Lenders, the Capitalized
Interest Lender and the Vendor Working Capital Lender and any other Person that
shall have become a party hereto pursuant to an Assignment Agreement, other than
any such Person that ceases to be a party hereto pursuant to an Assignment
Agreement.

              "Letter of Credit" shall mean any letter of credit issued pursuant
to this Agreement.

              "LIBOR" shall mean the rate at which deposits in U.S. dollars are
offered to leading banks in the London interbank market.

                                       14
<PAGE>

              "Licenses" shall mean the Frequency Band Concessions (as defined
in the Common Agreement) and the Telecommunication Networks Concession (as
defined in the Common Agreement) and any other licenses granted to the Borrower
by the Secretaria de Comunicaciones y Transportes in connection with the
Business.

              "Lien" shall mean any security interest, mortgage, pledge,
assignment by way of security, charge, lease, easement, servitude, deposit
arrangement, encumbrance, lien (statutory or other), preference, priority or
other security agreement of any kind or nature whatsoever including (i) any
conditional sale or other title retention agreement, any financing or similar
statement or notice filed under any recording or notice statute, and any lease
having substantially the same effect as any of the foregoing, and (ii) any
designation (except as contemplated by this Agreement) of loss payees or
beneficiaries or any similar arrangement under any insurance contract.

              "Loan" shall mean a Syndicated Working Capital Loan, a Vendor
Working Capital Loan, or a Capitalized Interest Loan, and "Loans" shall mean all
of such loans, collectively, unless the context otherwise requires.

              "Loan Document Currency" shall have the meaning set forth in
Section 11.14.

              "Loan Documents" shall mean, collectively, the following
agreements and instruments: (i) this Agreement, (ii) the Pagares, (iii) each
Guaranty Agreement, (iv) the Reimbursement Agreement, (v) Administrative Agent's
Fee Letter, (vi) the QUALCOMM Fee Letter, (vii) the Stock Options, (viii) any
Letter of Credit or related Letter of Credit application, (ix) the QUALCOMM
Guaranty, (x) an agreement dated as of the Closing Date among QUALCOMM and the
members of the Borrower Group regarding the waiver of certain conditions under
Section 5.2, and (xi) any other agreements or instruments that may be executed
and delivered in favor of Administrative Agent or one or more Lenders pursuant
to or in connection with this Agreement or any of the above-listed documents.

              "Material Adverse Effect" shall mean an event, circumstance,
occurrence or condition which has caused or could reasonably be expected to
cause, as of any date of determination, a material and adverse effect on (i) the
business, assets, liabilities, operations, prospects or condition (financial or
otherwise) of the Borrower Group (taken as a whole), (ii) the ability of
Borrower to perform Borrower Obligations or the ability of the Borrower Group
(taken as a whole) to perform its (or their) material Obligations under the Loan
Documents (including its (or their) ability to pay its (or their) obligations
under the Loan Documents as such obligations become due), (iii) the legality,
validity or enforceability of any of the Loan Documents or (iv) the rights of or
benefits available to the Lenders under the Loan Documents; provided, however,
that, after the Closing Date, clause (ii) of this definition shall apply only
for purposes of Sections 5.3(c) and 9.1(k).

              "Maturity" or "maturity" shall mean the earlier of (i) the
Scheduled Maturity Date and (ii) the date on which (A) the Loans have been
accelerated pursuant to Section 9.2 or (B) the Loans have been prepaid in full
and the Commitments terminated pursuant to this Agreement.

              "Mexico" shall mean the United Mexican States.

                                       15
<PAGE>

              "New Shareholders" shall have the meaning set forth in the Joint
Venture Agreement.

              "Obligation Currency" shall have the meaning set forth in Section
11.15.

              "Obligations" shall mean all Borrower Obligations and all other
obligations of members of the Borrower Group now existing or hereinafter
arising, direct or indirect, absolute or contingent, due or to become due, under
any of the Loan Documents, including, without duplication, (i) the principal of
and interest on the Loans, the reimbursement obligations of Borrower in
connection with Letters of Credit, the reimbursement obligations of the Borrower
Group pursuant to the Reimbursement Agreement and all other obligations,
advances, debts and liabilities of members of the Borrower Group, including
indemnities, and fees and interest incurred under, arising out of or in
connection with the this Agreement or any other Loan Document (whether or not
evidenced by any note, bond or other instrument and whether or not for the
payment of money), (ii) the obligations of Borrower to make deposits to the cash
collateral account described in Section 2.4(j), and (iii) the expenses of any
exercise by Administrative Agent or any Lender of its rights or remedies under
this Agreement or any other Loan Document, together with attorneys' fees and
court costs.

              "Operator Agreement" shall mean the Management and Operator
Agreement between Borrower and Leap Wireless Mexico.

              "Original Mexican Shareholders" shall mean Pegaso Comunicaciones y
Servicios, S.A. de C.V., Corporativo del Valle de Mexico, S. A. de C. V. and
Alejandro Burillo Azcarraga.

              "Other Taxes" shall mean any and all present or future stamp or
documentary taxes or any other excise or property taxes, charges or similar
levies arising from any payment made hereunder or from the execution, delivery
or enforcement of, or otherwise with respect to, this Agreement.

              "Pagare" or "Pagares" shall have the meaning set forth in Section
2.11(d).

              "Pegaso Guaranty Agreement" shall mean the Guaranty Agreement
dated as of the Closing Date as executed by each of the Guarantors in favor of
Administrative Agent for the benefit and on behalf of Lenders.

              "Pegaso PCS" shall mean Pegaso PCS, S.A. de C.V., a sociedad
anonima de capital variable organized under the laws of Mexico.

              "Permit" shall have the meaning set forth in Section 6.7.

              "Permitted Lien" shall have the meaning set forth in Section 6.01
of the Common Agreement as in effect on the date hereof.

              "Permitted Usage Category" shall mean one or more of the following
categories of expenditures, as the context shall require: (i) network operating
expenses, general and administrative expenses, sales and marketing expenses,
Taxes and interest expense (except that

                                       16
<PAGE>

no proceeds of Syndicated Working Capital Loans may be used to pay any interest
due on any Loans under this Agreement or the Pagares), other than handset
purchases (ii) handset purchases, (iii) capital expenditures not financed under
the Vendor Facilities and (iv) all amounts due and payable on the Closing Date
under the QUALCOMM Bridge Notes, and any other non-interest financing costs and
expenses payable under or in connection with the Loan Documents.

              "Person" shall mean any natural person, corporation, partnership,
joint venture, association, limited liability company, joint stock company,
trust, unincorporated organization or Governmental Authority or other entity.

              "Personnel Co." shall mean Pegaso Recursos Humanos, S.A. de C.V.,
a sociedad anonima de capital variable organized under the laws of Mexico.

              "Pesos" or "Ps." shall mean the lawful currency of Mexico.

              "Pops" shall mean population, as based on specific population
estimates of geographic areas as determined in accordance with those population
estimates provided by Comision Federal de Telecomunicaciones of Mexico in
connection with the bidding for and award of the Licenses.

              "QUALCOMM" shall mean QUALCOMM Incorporated, a corporation
organized under the laws of Delaware.

              "QUALCOMM Bridge Notes" shall mean the pagares dated April 16,
1999 and April 29, 1999, each between Borrower and QUALCOMM, evidencing loans by
QUALCOMM to Borrower in the aggregate principal amount of $20,119,444.

              "QUALCOMM Credit Agreement" shall mean the Amended and Restated
Credit Agreement dated as of December 15, 1998, between Borrower, the lenders
thereunder and ABN AMRO Bank N.V., as QUALCOMM Administrative Agent.

              "QUALCOMM Event" shall mean, so long (i) as any Obligations owing
to Administrative Agent or any Syndicated Lender remain unpaid or unsatisfied,
(ii) any Syndicated Working Capital Loans, Term Loans or Letters of Credit
remain outstanding, or (iii) any Syndicated Lender has any Commitment or any
Exposure under this Agreement, any of the following: (a) any event constituting
a "Guarantor Event of Default" under the QUALCOMM Guaranty; (b) any actual or
purported repudiation, revocation or rescission by QUALCOMM of the QUALCOMM
Guaranty, or QUALCOMM's obligations under the QUALCOMM Guaranty; or (c) the
QUALCOMM Guaranty shall cease to remain in full force and effect.

              "QUALCOMM Fee Letter" shall mean that letter agreement dated the
date hereof by and among the Borrower Group and QUALCOMM regarding the payment
of fees and other compensation in connection with the delivery by QUALCOMM of
the QUALCOMM Guaranty.

              "QUALCOMM Guaranty" shall mean that Guaranty Agreement, dated as
of the date hereof, between QUALCOMM and Administrative Agent pursuant to which
QUALCOMM

                                       17
<PAGE>

has guaranteed the obligations of Borrower under this Agreement and the Pagares
as therein provided.

              "Qualified Public Offering" shall mean a public offering of common
stock of Holdings, (i) in which the offering is made by Holdings and the
proceeds are to used by Holdings in its Business, (ii) the amount received by
Holdings (net of commissions, discounts and expenses) is not less than
$75,000,000, and (iii) such offering results in the common stock (or depository
receipts with respect thereto) of Holdings being listed on a national securities
market in the United States or in the European Union.

              "Reference Banks" shall mean Citibank, ABN AMRO Bank N.V. and
Societe Generale.

              "Register" shall have the meaning provided in Section 11.4(c).

              "Registered Financial Institution" shall mean a bank or other
financial institution duly registered in the Registry of Foreign Banks of
Mexico, Financing Entities, Pension Funds and Investments Funds.

              "Registration Rights Agreements" shall mean the Registration
Rights Agreement dated as of July 16, 1998 by and among Holdings and the
Sponsors as amended as of the date hereof.

              "Reimbursement Agreement" shall mean that Reimbursement Agreement
dated as of the date hereof by and among the members of the Borrower Group and
QUALCOMM, with respect to Borrower's reimbursement obligations to QUALCOMM in
connection with any payments made by QUALCOMM under the QUALCOMM Guaranty.

              "Related Parties" shall mean, with respect to any specified
Person, such Person's Affiliates and the respective directors, officers,
employees, agents and advisors of such Person and such Person's Affiliates.

              "Required Capitalized Interest Lenders" shall mean, at any time,
the Capitalized Interest Lenders having Exposures under the Capitalized Interest
Facility and unused Capitalized Interest Commitments representing at least 51%
of the sum of the total Exposures under the Capitalized Interest Facility and
unused Capitalized Interest Commitments of all Capitalized Interest Lenders at
such time.

              "Required Lenders" shall mean, at any time, all of the following:
(a) the Required Syndicated Lenders, (b) the Required Vendor Working Capital
Lenders, and (c) the Required Capitalized Interest Lenders.

              "Required Syndicated Lenders" shall mean, at any time, the
Syndicated Lenders having Exposures under the Working Capital Facility and
unused Working Capital Commitments (or, following the Commitment Termination
Date, Term Loans) representing at least 51% of the sum of the total Exposures
under the Working Capital Facility and unused Working Capital Commitments (or,
following the Commitment Termination Date, Term Loans)

                                       18
<PAGE>

of all Syndicated Lenders at such time; provided, however, that references to
"Required Syndicated Lenders" shall be deemed to be references to "Required
Lenders" (and clause (a) of the definition of "Required Lenders" shall be
disregarded) if (i) the Exposures of all Syndicated Lenders shall have been
reduced to zero, (ii) all Syndicated Working Capital Commitments, all Term Loan
Commitments and all LC Exposures shall have been terminated, (iii) all
Syndicated Working Capital Loans and all Term Loans shall have been repaid, (iv)
no Letters of Credit shall be outstanding, and (v) all other Obligations payable
to any Syndicated Lender or to the Administrative Agent shall have been paid in
full.

              "Required Vendor Working Capital Lenders" shall mean, at any time,
the Vendor Working Capital Lenders having Exposures under the Vendor Working
Capital Facility and unused Working Capital Commitments representing at least
51% of the sum of the total Exposures under the Vendor Working Capital Facility
and unused Working Capital Commitments of all Vendor Working Capital Lenders at
such time.

              "Responsible Officer" shall mean, with respect to any member of
the Borrower Group, the President, Chief Executive Officer, Chief Financial
Officer, Chief Operating Officer or General Counsel of such member, or any
Person having a similar function.

              "Satisfaction of QUALCOMM Conditions Precedent Letter" shall mean
that letter of QUALCOMM to Administrative Agent indicating that the conditions
precedent set forth in Section 5.2 and 5.3 have occurred or been waived, in each
case to the satisfaction of QUALCOMM.

              "SEC" shall mean the U.S. Securities and Exchange Commission.

              "Scheduled Maturity Date" shall mean the date that is 18 months
after the Closing Date; provided, that if such date is not a Business Day, the
Scheduled Maturity Date shall be the immediately preceding Business Day.

              "Senior Indebtedness" shall have the meaning set forth in Annex A
to the Common Agreement as in effect on the date hereof .

              "Sponsors" shall mean collectively all of the shareholders of
Holdings, which as of the date hereof are Leap Mexico, the Original Mexican
Shareholders and the New Shareholders.

              "Sponsors Negative Pledge Agreement" shall mean the Negative
Pledge Agreement, dated as of April 12, 1999, pursuant to which each of the
Sponsors has agreed not to grant a Lien to any third party on the Capital Stock
of Holdings held by such Sponsor, to the extent provided therein.

              "Stock Options" shall mean collectively the Stock Option
Agreements of even date herewith granted by Holdings in favor of QUALCOMM and
each of the Counter-Guarantors.

                                       19
<PAGE>

              "Subsidiary" shall mean, for any Person, any other Person (whether
now existing or hereafter organized) for which at least a majority of the
securities or other ownership interests having ordinary voting power for the
election of directors or other managers are at the time owned or controlled by
such first Person or one or more Subsidiaries of such first Person or any
combination thereof.

              "Syndicated Lender" shall mean any Lender having a Syndicated
Working Capital Commitment or a Term Loan Commitment.

              "Syndicated Working Capital Commitment" shall mean, with respect
to each Syndicated Lender, the amount set forth on Schedule 2.1 as such
Syndicated Lender's "Syndicated Working Capital Commitment", as such amount may
be adjusted from time to time pursuant to the terms of this Agreement.

              "Syndicated Working Capital Commitment Percentage" shall mean,
with respect to any Syndicated Lender, the percentage equivalent of such
Syndicated Lender's Syndicated Working Capital Commitment divided by either (a)
if the Term-Out Option shall not have become effective for any reason, the Total
Syndicated Working Capital Commitment or (b) if, subject to the terms and
conditions hereof, the Term-Out Option shall have become effective, the Total
Term Loan Commitment.

              "Syndicated Working Capital Facility" shall mean the extension of
credit to Borrower by the Syndicated Lenders as set forth in Section 2.1.

              "Syndicated Working Capital Loans" shall mean loans made to
Borrower by the Syndicated Lenders under the Syndicated Working Capital Facility
pursuant to this Agreement, as described in clause (a) of Section 2.1.

              "Syndication" shall have the meaning assigned in Section 2.16.

              "System" shall mean the wireless broadband PCS system to be
constructed and rolled out by the Borrower Group pursuant to the Business Plan.

              "Taxes" shall mean all taxes of every kind (including gross and
net income, gross and net receipts, capital gains, excess profits and minimum
taxes, taxes on tax preferences, capital, net worth, franchise, sales, use
value-added, stamp, documentary, excise, property and other similar taxes),
charges and withholdings, levies, imposts, duties, fees and deductions imposed
by any Governmental Authority, together with all interest, additions to tax,
penalties and similar add-ons payable with respect thereto.

              "Tax Return" shall mean any return, declaration, report, claim for
refund or information return or statement relating to Taxes or any amendment
thereto, and including any schedule or attachment thereto.

              "Term Loans" shall mean loans made to Borrower by the Syndicated
Lenders under the Syndicated Working Capital Facility pursuant to this
Agreement, as described in clause (c) of Section 2.1, subject to the exercise of
the Term-Out Option pursuant to Section 2.10(b).

                                       20
<PAGE>

              "Term Loan Commitment" shall mean, with respect to each Syndicated
Lender, (a) if, subject to the terms and conditions hereof, the Term-Out Option
shall have become effective, an amount equal to such Syndicated Lender's
Syndicated Working Capital Commitment, and (b) if the Term-Out Option shall not
have become effective for any reason, zero.

              "Term-Out Option" shall have the meaning set forth in Section
2.10(b).

              "Total Capitalized Interest Commitment" shall mean Fifteen Million
Dollars ($15,000,000), as such amount may be increased pursuant to Section
2.12(d).

              "Total Commitment" shall mean, as of the date of determination,
the aggregate amount of the Total Capitalized Interest Commitment plus the Total
Working Capital Commitment.

              "Total Syndicated Working Capital Commitment" shall mean (a) Sixty
Million Dollars ($60,000,000), or (b) to the extent, if any, increased pursuant
to Section 2.9(f), an amount up to One Hundred Million Dollars ($100,000,000),
as such amount, in each case, may be reduced pursuant to Section 2.9(g).

              "Total Term Loan Commitment" shall mean, as of the date of
determination, the aggregate amount of the Term Loan Commitments of all
Syndicated Lenders.

              "Total Vendor Working Capital Commitment" shall mean Forty Million
Dollars ($40,000,000), as such amount may be adjusted pursuant to Section
2.9(f).

              "Total Working Capital Commitment" shall mean the sum of the Total
Syndicated Working Capital Commitment and the Total Vendor Working Capital
Commitment, which shall be an aggregate amount equal to One Hundred Million
Dollars ($100,000,000); provided that after the Commitment Termination Date
applicable to Syndicated Working Capital Loans, if the Term-Out Option shall
have become effective, the "Total Working Capital Commitment" shall mean the sum
of the Total Term Loan Commitment and the Total Vendor Working Capital
Commitment.

              "Type", when used in reference to any Loan or Borrowing, refers to
whether the rate of interest on such Loan, or on the Loans comprising such
Borrowing, is determined by reference to the Eurodollar Rate or the Base Rate.

              "Underwriting Fee" shall mean the "Underwriting Fee" under and as
defined in the QUALCOMM Fee Letter.

              "United States" or "U.S." shall mean the United States of America.

              "U.S. GAAP" shall mean generally accepted accounting principles in
the United States.

              "Usury Permit" shall have the meaning set forth in Section 7.7.

                                       21
<PAGE>

              "Vendor Facilities" shall mean the credit facilities provided to
Borrower under the QUALCOMM Credit Agreement and the Alcatel Credit Agreement.

              "Vendor Post-Closing Agreement" shall mean the Agreement Regarding
Closing Conditions dated as of February 26, 1999, among each member of the
Borrower Group, Citibank, N.A., as Intercreditor Agent, Citibank Mexico, S.A.,
Grupo Financiero Citibank, as Collateral Agent, Citibank International Plc, as
Alcatel Administrative Agent, and ABN AMRO Bank N.V., as QUALCOMM Administrative
Agent.

              "Vendor Working Capital Commitment" shall mean, with respect to
each Vendor Working Capital Lender, the amount set forth on Schedule 2.2 as such
Vendor Working Capital Lender's "Vendor Working Capital Commitment", as such
amount may be adjusted from time to time pursuant to the terms of this
Agreement.

              "Vendor Working Capital Commitment Percentage" shall mean, with
respect to any Vendor Working Capital Lender, the percentage equivalent of such
Vendor Working Capital Lender's Vendor Working Capital Commitment divided by the
Total Vendor Working Capital Commitment.

              "Vendor Working Capital Facility" shall mean the extension of
credit to Borrower by the Vendor Working Capital Lenders as set forth in Section
2.2.

              "Vendor Working Capital Lender" shall mean QUALCOMM and, following
the Commitment Termination Date applicable to Syndicated Working Capital Loans,
any other Lender having a Vendor Working Capital Commitment.

              "Vendor Working Capital Loans" shall mean loans made to Borrower
by Vendor Working Capital Lenders under the Vendor Working Capital Facility
pursuant to this Agreement.

              "Working Capital Commitment" shall mean, with respect to each
Working Capital Lender, such Working Capital Lender's Syndicated Working Capital
Commitment or Vendor Working Capital Commitment, as the case may be.

              "Working Capital Facilities" shall mean the Syndicated Working
Capital Facility and the Vendor Working Capital Facility.

              "Working Capital Lender" shall mean any Lender having a Working
Capital Commitment.

              "Working Capital Loans" shall mean Syndicated Working Capital
Loans and Vendor Working Capital Loans.

                                       22
<PAGE>

       1.2 Other Interpretive Provisions.

              (a) All terms defined in this Agreement shall have their defined
meanings when used in the other Loan Documents and any certificate or other
document made or delivered pursuant hereto, unless the context clearly indicates
otherwise.

              (b) The words "hereof," "herein" and "hereunder" and words of
similar import when used in this Agreement shall refer to this Agreement as a
whole and not to any particular provision of this Agreement. Section,
subsection, recital, schedule and exhibit references are to this Agreement
unless otherwise specified.

              (c) References to the words "include" or "including" shall be
deemed to be followed by "without limitation" or "but not limited to", whether
or not they are followed by such phrases or words of similar import.

              (d) The word "or" is not exclusive.

              (e) All terms defined in this Agreement in the singular form shall
be equally applicable to both the singular and plural forms of the terms defined
and the masculine, feminine or neuter gender shall include all genders.

              (f) References in any Loan Document to any statute, decree,
regulation or other Applicable Law shall be construed as a reference to such
statute, law, decree, regulation or other Applicable Law as re-enacted,
redesignated, amended or extended from time to time, except as otherwise
provided in such Loan Document.

              (g) References in any Loan Document to any other document or
agreement shall (unless otherwise expressly indicated) be deemed to include
references to such other document or agreement as amended, varied, supplemented
or replaced from time to time in accordance with the terms of such document or
agreement and this Agreement and to include any appendices, schedules, exhibits,
clarification letters, side letters and disclosure letters executed in
connection therewith.

              (h) References to any Person or Persons shall be construed as a
reference to any successors or assigns of such Person or Persons to the extent
permitted under the Loan Documents and, in the case of any Governmental
Authority, any Person succeeding to its functions and capacities.

       1.3 Accounting Terms; GAAP. Except as otherwise expressly provided
herein, all terms of an accounting or financial nature shall be construed in
accordance with GAAP, as in effect from time to time. All financial statements
to be furnished to Administrative Agent, QUALCOMM or the other Lenders pursuant
to this Agreement shall be made and prepared in accordance with GAAP
consistently applied throughout the periods involved (except as set forth in the
notes thereto); provided that if at any time such computations utilize
accounting principles different from those utilized in the financial statements
furnished pursuant to Section 7.1(a), such financial statements shall be
accompanied by reconciliation worksheets.

                                       23
<PAGE>

SECTION 2. THE CREDITS.

       2.1 Syndicated Working Capital Facility.

              (a) Syndicated Working Capital Loan Commitments. Subject to the
terms and conditions set forth in this Agreement, each Syndicated Lender agrees
to make Syndicated Working Capital Loans to Borrower from time to time during
the Availability Period applicable to the Syndicated Working Capital Facility in
an aggregate principal amount that will not result in (i) such Lender's Exposure
under the Syndicated Working Capital Facility exceeding such Lender's Syndicated
Working Capital Commitment or (ii) the sum of all Syndicated Lenders' Exposures
under the Syndicated Working Capital Facility exceeding the Total Syndicated
Working Capital Commitment. The amount otherwise available for Borrowings of
Syndicated Working Capital Loans as of any time of determination (other than to
reimburse the Issuing Bank for an LC Disbursement as contemplated by Section
2.4(e)) shall be reduced by the LC Exposure as of such time of determination.
Within the foregoing limits and subject to the terms and conditions set forth
herein, Borrower may borrow, prepay and reborrow Syndicated Working Capital
Loans.

              (b) Permitted Uses of Syndicated Working Loan Proceeds and Letters
of Credit. Borrower shall use the proceeds of each Syndicated Working Capital
Loan and any Letter of Credit issued under Section 2.4 solely for Permitted Use
Category expenditures, and to support Permitted Use Category obligations, in
amounts as outlined in the Budget and, with respect to Syndicated Working
Capital Loans, to finance the reimbursement of an LC Disbursement as
contemplated by Section 2.4(e), and for such other uses as may be approved by
QUALCOMM in its sole and absolute discretion.

              (c) Term Loan Commitments. Subject to the terms and conditions set
forth in this Agreement, each Syndicated Lender agrees to make Term Loans to
Borrower on the Commitment Termination Date applicable to the Syndicated Working
Capital Facility in an aggregate principal amount equal to the principal balance
of such Syndicated Lender's Syndicated Working Capital Loans then outstanding
plus such Syndicated Lender's unused Syndicated Working Capital Commitment on
such date, so long as (i) the making of such Term Loans will not result in (A)
such Lender's Exposure under the Syndicated Working Capital Facility exceeding
such Lender's Term Loan Commitment or (B) the sum of all Syndicated Lenders'
Exposures under the Syndicated Working Capital Facility exceeding the Total Term
Loan Commitment, and (ii) the terms and conditions of Section 2.10(b) are
satisfied upon the election of the Term-Out Option by Borrower. Within the
foregoing limits and subject to the terms and conditions set forth herein,
Borrower may borrow and prepay Term Loans. Once repaid, Term Loans may not be
reborrowed. Once repaid by the proceeds of Term Loans, amounts under the
Syndicated Working Capital Facility may not be re-borrowed.

              (d) Permitted Uses of Term Loan Proceeds. Borrower shall use the
proceeds of the Term Loans solely for (i) the payment in full of the principal
balance of all Syndicated Working Capital Loans outstanding on the Commitment
Termination Date applicable to Syndicated Working Capital Loans and (ii) to the
extent the aggregate principal balance of the

                                       24
<PAGE>

Term Loans exceeds the aggregate principal balance of such Syndicated Working
Capital Loans, for Permitted Use Category expenditures in amounts as outlined in
the Budget.

       2.2 Vendor Working Capital Facility.

              (a) Vendor Working Capital Loan Commitments. Subject to the terms
and conditions set forth in this Agreement, each Vendor Working Capital Lender
agrees to make Vendor Working Capital Loans to Borrower from time to time during
the Availability Period applicable to the Vendor Working Capital Facility in an
aggregate principal amount that will not result in (i) such Lender's Exposure
under the Vendor Working Capital Facility exceeding such Lender's Vendor Working
Capital Commitment or (ii) the sum of all Vendor Working Capital Lenders'
Exposures under the Vendor Working Capital Facility exceeding the Total Vendor
Working Capital Commitment. Within the foregoing limits and subject to the terms
and conditions set forth herein, Borrower may borrow, prepay and reborrow Vendor
Working Capital Loans.

              (b) Permitted Uses of Vendor Working Loan Proceeds. Borrower shall
use the proceeds of each Vendor Working Capital Loan solely for (i) Permitted
Use Category expenditures in amounts as outlined in the Budget and (ii) such
other uses as may be approved by QUALCOMM in its sole and absolute discretion.

       2.3 Capitalized Interest Facility.

              (a) Capitalized Interest Loan Commitments. Subject to the terms
and conditions set forth in this Agreement, each Capitalized Interest Lender
agrees to make Capitalized Interest Loans to Borrower from time to time during
the Availability Period applicable to the Capitalized Interest Facility in an
aggregate principal amount that will not result in (i) such Lender's Exposure
under the Capitalized Interest Facility exceeding such Lender's Capitalized
Interest Commitment or (ii) the sum of all Capitalized Interest Lenders'
Exposures under the Capitalized Interest Facility exceeding the Total
Capitalized Interest Commitment. Within the foregoing limits and subject to the
terms and conditions set forth herein, Borrower may borrow and prepay
Capitalized Interest Loans. Once repaid, amounts under the Capitalized Interest
Facility may not be re-borrowed.

              (b) Permitted Uses of Capitalized Interest Loan Proceeds. Borrower
shall use the proceeds of each Capitalized Interest Loan solely for (i) interest
payments to Working Capital Lenders on the Working Capital Loans, (ii) interest
payments to Syndicated Lenders on the Term Loans, (iii) payments to the Issuing
Bank for fees and costs related to the issuance of Letters of Credit, and (iv)
payment to QUALCOMM of the Underwriting Fee and the Guaranty Fee.

       2.4 Letters of Credit.

              (a) General. In addition to Borrower requesting Syndicated Working
Capital Loans pursuant to Section 2.1, subject to the terms and conditions set
forth herein, Borrower may request the issuance of Letters of Credit for its own
account, in a form reasonably acceptable to Administrative Agent and the Issuing
Bank, at any time and from time to time during the

                                       25
<PAGE>

Availability Period applicable to the Syndicated Working Capital Facility. In
the event of any inconsistency between the terms and conditions of this
Agreement and the terms and conditions of any form of letter of credit
application or other agreement submitted by Borrower to, or entered into by
Borrower with, the Issuing Bank relating to any Letter of Credit, the terms and
conditions of this Agreement shall control.

              (b) Notice of Issuance, Amendment, Renewal, Extension; Certain
Conditions. To request the issuance of a Letter of Credit (or the amendment,
renewal or extension of an outstanding Letter of Credit), Borrower shall hand
deliver or facsimile (or transmit by electronic communication, if arrangements
for doing so have been approved by the Issuing Bank) to the Issuing Bank and
Administrative Agent (reasonably in advance of the requested date of issuance,
amendment, renewal or extension) a notice, approved and signed by QUALCOMM in
accordance with Section 2.6(b), requesting the issuance of a Letter of Credit,
or identifying the Letter of Credit to be amended, renewed or extended, the date
of issuance, amendment, renewal or extension, the date on which such Letter of
Credit is to expire (which shall comply with paragraph (c) of this Section), the
amount of such Letter of Credit, the name and address of the beneficiary thereof
and such other information as shall be necessary to prepare, amend, renew or
extend such Letter of Credit. If requested by the Issuing Bank, Borrower also
shall submit a letter of credit application on the Issuing Bank's standard form
in connection with any request for a Letter of Credit. A Letter of Credit shall
be issued, amended, renewed or extended only if (and upon issuance, amendment,
renewal or extension of each Letter of Credit Borrower shall be deemed to
represent and warrant that), after giving effect to such issuance, amendment,
renewal or extension (i) the LC Exposure shall not exceed $10,000,000 and (ii)
the sum of the total Syndicated Lenders' LC Exposures plus the aggregate
principal amount of outstanding Syndicated Working Capital Loans shall not
exceed the Total Syndicated Working Capital Commitments.

              (c) Expiration Date. Each Letter of Credit shall expire at or
prior to the close of business on the earlier of (i) the date one year after the
date of the issuance of such Letter of Credit (or, in the case of any renewal or
extension thereof, one year after such renewal or extension) and (ii) the date
that is five Business Days prior to the Scheduled Maturity Date.

              (d) Participations. By the issuance of a Letter of Credit (or an
amendment to a Letter of Credit increasing the amount thereof) and without any
further action on the part of the Issuing Bank or Syndicated Lenders, the
Issuing Bank hereby grants to each Syndicated Lender, and each Syndicated Lender
hereby acquires from the Issuing Bank, a participation in such Letter of Credit
equal to such Syndicated Lender's Syndicated Working Capital Commitment
Percentage of the aggregate amount available to be drawn under such Letter of
Credit. In consideration and in furtherance of the foregoing, each Syndicated
Lender hereby absolutely and unconditionally agrees to pay to Administrative
Agent, for the account of the Issuing Bank, such Syndicated Lender's Syndicated
Working Capital Commitment Percentage of each LC Disbursement made by the
Issuing Bank and not reimbursed by Borrower on the date due as provided in
paragraph (e) of this Section, or of any reimbursement payment required to be
refunded to Borrower for any reason. Each Syndicated Lender acknowledges and
agrees that its obligation to acquire participations pursuant to this paragraph
in respect of Letters of Credit is absolute and unconditional and shall not be
affected by any circumstance whatsoever, including

                                       26
<PAGE>

any amendment, renewal or extension of any Letter of Credit or the occurrence
and continuance of a Default or Event of Default or reduction or termination of
the Commitments, and that each such payment shall be made without any offset,
abatement, withholding or reduction whatsoever.

              (e) Reimbursement. If the Issuing Bank shall make any LC
Disbursement in respect of a Letter of Credit, Borrower shall reimburse such LC
Disbursement by paying to Administrative Agent an amount equal to such LC
Disbursement not later than 12:00 noon, New York City time, on the date that
such LC Disbursement is made, if Borrower shall have received notice of such LC
Disbursement prior to 10:00 a.m., New York City time, on such date, or, if such
notice has not been received by Borrower prior to such time on such date, then
not later than 12:00 noon, New York City time, on (i) the Business Day that
Borrower receives such notice, if such notice is received prior to 10:00 a.m.,
New York City time, on the day of receipt, or (ii) the Business Day immediately
following the day that Borrower receives such notice, if such notice is not
received prior to such time on the day of receipt; provided that Borrower may,
subject to the conditions to borrowing set forth herein, request in accordance
with Section 2.1 that such payment be financed with a Syndicated Working Capital
Loan in an equivalent amount and, to the extent so financed, Borrower's
obligation to make such payment shall be discharged and replaced by the
resulting Syndicated Working Capital Loan. If Borrower fails to make such
payment when due, Administrative Agent shall notify each Syndicated Lender of
the applicable LC Disbursement, the payment then due from Borrower in respect
thereof and such Syndicated Lender's Syndicated Working Capital Commitment
Percentage thereof. Promptly following receipt of such notice, each Syndicated
Lender shall pay to Administrative Agent its Syndicated Working Capital
Commitment Percentage of the payment then due from Borrower, in the same manner
as provided in Section 2.7 with respect to Loans made by such Syndicated Lender
(and Section 2.7 shall apply, mutatis mutandis, to the payment obligations of
Lenders), and Administrative Agent shall promptly pay to the Issuing Bank the
amounts so received by it from Syndicated Lenders. Promptly following receipt by
Administrative Agent of any payment from Borrower pursuant to this paragraph,
Administrative Agent shall distribute such payment to the Issuing Bank or, to
the extent that Syndicated Lenders have made payments pursuant to this paragraph
to reimburse the Issuing Bank, then to such Syndicated Lenders and the Issuing
Bank as their interests may appear. Any payment made by a Syndicated Lender
pursuant to this paragraph to reimburse the Issuing Bank for any LC Disbursement
(other than the funding of Syndicated Working Capital Loan as contemplated
above) shall not constitute a Loan and shall not relieve Borrower of its
obligation to reimburse such LC Disbursement.

              (f) Obligations Absolute. Borrower's obligation to reimburse LC
Disbursements as provided in paragraph (e) of this Section shall be absolute,
unconditional and irrevocable, and shall be performed strictly in accordance
with the terms of this Agreement under any and all circumstances whatsoever and
irrespective of:

                     (i) any lack of validity or enforceability of any Letter of
Credit or this Agreement, or any term or provision therein;

                     (ii) any amendment or waiver of or any consent to departure
from all or any of the provisions of any Letter of Credit or this Agreement;

                                       27
<PAGE>

                     (iii) the existence of any claim, setoff, defense or other
right that Borrower, any other party guaranteeing, or otherwise obligated with,
Borrower, any Subsidiary or other Affiliate thereof or any other Person may at
any time have against the beneficiary under any Letter of Credit, the Issuing
Bank, Administrative Agent or any Lender or any other Person, whether in
connection with this Agreement or any other related or unrelated agreement or
transaction;

                     (iv) any draft or other document presented under a Letter
of Credit proving to be forged, fraudulent or invalid in any respect or any
statement therein being untrue or inaccurate in any respect;

                     (v) payment by the Issuing Bank under a Letter of Credit
against presentation of a draft or other document that does not comply with the
terms of such Letter of Credit; and

                     (vi) any other act or omission to act or delay of any kind
of the Issuing Bank, Lenders, Administrative Agent or any other Person or any
other event or circumstance whatsoever, whether or not similar to any of the
foregoing, that might, but for the provisions of this Section, constitute a
legal or equitable discharge of Borrower's obligations hereunder.

Neither Administrative Agent, the Syndicated Lenders nor the Issuing Bank, nor
any of their Related Parties, shall have any liability or responsibility by
reason of or in connection with the issuance or transfer of any Letter of Credit
or any payment or failure to make any payment thereunder (irrespective of any of
the circumstances referred to in the preceding sentence), or any error,
omission, interruption, loss or delay in transmission or delivery of any draft,
notice or other communication under or relating to any Letter of Credit
(including any document required to make a drawing thereunder), any error in
interpretation of technical terms or any consequence arising from causes beyond
the control of the Issuing Bank; provided that the foregoing shall not be
construed to excuse the Issuing Bank from liability to Borrower to the extent of
any direct damages (as opposed to consequential damages, claims in respect of
which are hereby waived by Borrower to the greatest extent permitted by
applicable law) suffered by Borrower that are caused by the Issuing Bank's gross
negligence or willful misconduct when determining whether drafts and other
documents presented under a Letter of Credit comply with the terms thereof. The
parties hereto expressly agree that (A) the Issuing Bank may accept documents
that appear on their face to be in substantial compliance with the terms of a
Letter of Credit without responsibility for further investigation, regardless of
any notice or information to the contrary, and may make payment upon
presentation of documents that appear on their face to be in substantial
compliance with the terms of such Letter of Credit, (B) the Issuing Bank shall
have the right, in its sole discretion, to decline to accept such documents and
to make such payment if such documents are not in strict compliance with the
terms of such Letter of Credit, (C) any action taken by the Issuing Bank in
accordance with either of the foregoing clauses shall be deemed not to
constitute gross negligence or willful misconduct and (D) this sentence shall
establish the standard of care to be exercised by the Issuing Bank when
determining whether drafts and other documents presented under a Letter of
Credit comply with the terms thereof (and the parties hereto hereby waive, to
the extent permitted by applicable law, any standard of care inconsistent with
the foregoing).

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<PAGE>

              (g) Disbursement Procedures. The Issuing Bank shall, promptly
following its receipt thereof, examine all documents purporting to represent a
demand for payment under a Letter of Credit. The Issuing Bank shall promptly
notify Administrative Agent and Borrower by telephone (confirmed by facsimile)
of such demand for payment and whether the Issuing Bank has made or will make an
LC Disbursement thereunder; provided that any failure to give or delay in giving
such notice shall not relieve Borrower of its obligation to reimburse the
Issuing Bank and the Syndicated Lenders with respect to any such LC
Disbursement.

              (h) Interim Interest. If the Issuing Bank shall make any LC
Disbursement, then, unless Borrower shall reimburse such LC Disbursement in full
on the date such LC Disbursement is made, the unpaid amount thereof shall bear
interest, for each day from and including the date such LC Disbursement is made
to but excluding the date that Borrower reimburses such LC Disbursement, at the
rate per annum then applicable to Syndicated Working Capital Loans that are Base
Rate Loans; provided that, if Borrower fails to reimburse such LC Disbursement
when due pursuant to paragraph (e) of this Section, then Section 2.12(b) shall
apply. Interest accrued pursuant to this paragraph shall be for the account of
the Issuing Bank, except that interest accrued on and after the date of payment
by any Syndicated Lender pursuant to paragraph (e) of this Section to reimburse
the Issuing Bank shall be for the account of such Syndicated Lender to the
extent of such payment.

              (i) Replacement of the Issuing Bank. The Issuing Bank may be
replaced at any time with respect to Letters of Credit to be issued thereafter
by written agreement among Borrower, Administrative Agent, the replaced Issuing
Bank and the successor Issuing Bank. Administrative Agent shall notify the
Syndicated Lenders of any such replacement of the Issuing Bank. At the time any
such replacement shall become effective, Borrower shall pay all unpaid fees
accrued for the account of the replaced Issuing Bank pursuant to Section 3.1(d).
From and after the effective date of any such replacement, (i) the successor
Issuing Bank shall have all the rights and obligations of the Issuing Bank under
this Agreement with respect to Letters of Credit to be issued thereafter and
(ii) references herein to the term "Issuing Bank" shall be deemed to refer to
such successor or to any previous Issuing Bank, or to such successor and all
previous Issuing Banks, as the context shall require. After the replacement of
an Issuing Bank hereunder, the replaced Issuing Bank shall remain a party hereto
and shall continue to have all the rights and obligations of an Issuing Bank
under this Agreement with respect to Letters of Credit issued by it prior to
such replacement, but shall not be required to issue additional Letters of
Credit.

              (j) Cash Collateralization. If any Event of Default shall occur
and be continuing, on the Business Day that Borrower receives notice from
Administrative Agent or the Required Syndicated Lenders (or, if the maturity of
the Syndicated Working Capital Loans has been accelerated, Syndicated Lenders
with an LC Exposure representing at least 51% of the total LC Exposure)
demanding the deposit of cash collateral pursuant to this paragraph, Borrower
shall deposit in an account with Administrative Agent, in the name of
Administrative Agent and for the benefit of the Syndicated Lenders, an amount in
cash equal to the LC Exposure as of such date plus any accrued and unpaid
interest thereon; provided that the obligation to deposit such cash collateral
shall become effective immediately, and such deposit shall become immediately
due and payable, without demand or other notice of any kind, upon the occurrence
of any Event of Default with respect to Borrower described in clause (e), (f) or
(g) of Section 9.1; provided,

                                       29
<PAGE>

further, that the Required Syndicated Lenders shall not give any such notice nor
direct Administrative Agent to give any such notice in the case of any Event of
Default of the type described in clause (b), (c) except if resulting from a
breach of Section 8.1 or 8.4, (d), (k), (n) or (o) of Section 9.1 if, upon any
such Event of Default, QUALCOMM shall have delivered to Administrative Agent,
promptly upon request, a confirmation of the QUALCOMM Guaranty, and no other
type of Event of Default nor any QUALCOMM Event shall have occurred and be
continuing. Such deposit shall be held by Administrative Agent as collateral for
the payment and performance of the obligations of Borrower under this Agreement.
Administrative Agent shall have exclusive dominion and control, including the
exclusive right of withdrawal, over such account. Other than any interest earned
on the investment of such deposits, which investments shall be made at the
option and sole discretion of Administrative Agent in such investments as may be
usual and customary for collateral accounts of this type maintained by the
Administrative Agent and at Borrower's risk and expense, such deposits shall not
bear interest. Interest or profits, if any, on such investments shall accumulate
in such account. Moneys in such account shall be applied by Administrative
Agent, first, to reimburse the Issuing Bank for LC Disbursements for which it
has not been reimbursed and, second, to the extent not so applied, shall be
applied to satisfy other Obligations of Borrower then due and payable under this
Agreement and, third, to the extent not so applied, shall be held for the
satisfaction of the reimbursement obligations of Borrower for the LC Exposure at
such time. If Borrower is required to provide an amount of cash collateral
hereunder as a result of the occurrence of an Event of Default, such amount (to
the extent not applied as aforesaid) shall be returned to Borrower within three
Business Days after the date when no Default shall exist or all the Obligations
shall have been paid in full.

       2.5 Loans and Borrowings.

              (a) Each Syndicated Working Capital Loan shall be made as part of
a Borrowing consisting of Syndicated Working Capital Loans made by the
Syndicated Lenders ratably in accordance with their respective Syndicated
Working Capital Commitments; provided that if any Vendor Working Capital Loans
are outstanding when any Additional Lender acquires all or a portion of
QUALCOMM's Vendor Working Capital Commitment and Vendor Working Capital Loans as
provided in Section 2.9(f), concurrently with the assignment by QUALCOMM to such
Additional Lender of such Vendor Working Capital Loans and the deemed conversion
of such Vendor Working Capital Loans to Syndicated Working Capital Loans
pursuant to clause (B) of Section 2.9(f), such Additional Lender shall fund a
Syndicated Loan (the proceeds of which shall be paid directly to the other
Syndicated Lenders as a principal prepayment on their respective outstanding
Syndicated Loans) in such amount as shall be sufficient to cause the Syndicated
Loans outstanding by all Syndicated Lenders (after giving effect to such
assignment) to be held by the Syndicated Lenders ratably in accordance with
their respective Syndicated Working Capital Commitments, and, when such new
Syndicated Loan is applied to the payment of such outstanding Syndicated Loans,
Borrower shall pay any amounts due in respect thereof under Section 4.2. Each
Vendor Working Capital Loan shall be made as part of a Borrowing consisting of
Vendor Working Capital Loans made by the Vendor Working Capital Lenders ratably
in accordance with their respective Vendor Working Capital Commitments. Each
Capitalized Interest Loan shall be made as part of a Borrowing consisting of
Capitalized Interest Loans made by the Capitalized Interest Lenders ratably in
accordance with their respective

                                       30
<PAGE>

Capitalized Interest Commitments. Each Term Loan shall be made as part of a
Borrowing consisting of Term Loans made by the Syndicated Lenders ratably in
accordance with their respective Term Loan Commitments. The failure of any
Lender to make any Loan required to be made by it shall not relieve any other
Lender of its obligations hereunder; provided that the Commitments of the
Lenders are several and no Lender shall be responsible for any other Lender's
failure to make Loans as required.

              (b) Subject to Section 2.13(c), each Borrowing shall be composed
entirely of Base Rate Loans or Eurodollar Loans as Borrower may request in
accordance with this Agreement. Each Lender at its option may make any
Eurodollar Loan by causing any domestic or foreign branch or Affiliate of such
Lender to make such Loan; provided that any exercise of such option shall not
affect the obligation of Borrower to repay such Loan in accordance with the
terms of this Agreement.

              (c) At the time that each Borrowing is made, such Borrowing shall
be in an aggregate amount that is an integral multiple of $100,000 and not less
than $2,500,000; provided that (i) a Base Rate Syndicated Working Capital
Borrowing may be in an aggregate amount that is equal to the entire unused
balance of the Total Syndicated Working Capital Commitment or that is required
to finance the reimbursement of an LC Disbursement as contemplated by Section
2.4(e), (ii) a Base Rate Vendor Working Capital Borrowing may be in an aggregate
amount that is equal to the entire unused balance of the Total Vendor Working
Capital Commitment and (iii) a Base Rate Capitalized Interest Borrowing may be
in any amount. Borrowings of more than one Type and Class may be outstanding at
the same time; provided that there shall not at any time be more than a total of
ten (10) Borrowings outstanding.

              (d) There shall not be Eurodollar Loans outstanding at any one
time having more than six (6) different Interest Periods.

              (e) Notwithstanding any other provision of this Agreement,
Borrower shall not be entitled to request, or to elect to convert or continue,
any Borrowing of Eurodollar Loans if the Interest Period requested with respect
thereto would end after the relevant Commitment Termination Date.

              (f) No Borrowing of Vendor Working Capital Loans shall be
permitted unless the Total Syndicated Working Capital Commitment shall then have
been fully utilized, after giving effect to any concurrent Borrowing of
Syndicated Working Capital Loans.

       2.6 Requests for Borrowings.

              (a) Working Capital Borrowings and Term Loan Borrowings. To
request a Working Capital Borrowing or a Term Loan Borrowing for the purposes
described in Section 2.1(d)(ii), Borrower shall notify Administrative Agent of
such request by telephone (a) in the case of a Eurodollar Borrowing, not later
than 11:00 a.m., New York City time, three (3) Business Days before the date of
the proposed Borrowing, or (b) in the case of a Base Rate Borrowing, not later
than 11:00 a.m., New York City time, one (1) Business Day before the date of the
proposed Borrowing; provided that any such notice of a Base Rate Borrowing to
finance the reimbursement of an LC Disbursement as contemplated by Section
2.4(e) may be given not

                                       31
<PAGE>

later than 10:00 a.m., New York City time, on the date of the proposed
Borrowing; and provided, further, that the Syndicated Loan to be funded by the
Additional Lender described in the proviso to the first sentence of Section
2.5(a) shall not require any notice by Borrower, shall not be included as a
Borrowing for the purpose of the limitation in the number of Borrowings
outstanding under the proviso at the end of Section 2.5(c), and, subject to
Section 2.9(f), if not made on the last day of the Interest Period for the
Syndicated Loans prepaid by such new Syndicated Loan, if such Syndicated Loans
are Eurodollar Loans, shall have an initial Interest Period equal to the period
from the date of funding until the next occurring last day of an Interest Period
for an outstanding Syndicated Loan or, if such Interest Period is not available
hereunder, shall be a Base Rate Loan. To request a Term Loan Borrowing for the
purposes described in Section 2.1(d)(i), Borrower shall notify Administrative
Agent of such request as provided in Section 2.10(b). Each telephonic Borrowing
Request shall be irrevocable and shall be confirmed promptly by hand delivery or
facsimile to Administrative Agent of a written Borrowing Request in the form of
Exhibit B-1 approved by Administrative Agent and signed by Borrower and
QUALCOMM. Each such telephonic and written Borrowing Request shall specify the
following information in compliance with Section 2.5:

                     (i) the aggregate amount of the requested Borrowing;

                     (ii) the date of such Borrowing, which shall be a Business
Day;

                     (iii) whether such Borrowing is to be a Base Rate Borrowing
or a Eurodollar Borrowing; and

                     (iv) in the case of a Eurodollar Borrowing, the initial
Interest Period to be applicable thereto, which shall be a period contemplated
by the definition of the term "Interest Period".

If no election as to the Type of Working Capital Borrowing or Term Loan
Borrowing is specified, then the requested Borrowing shall be a Base Rate
Borrowing. If no Interest Period is specified with respect to any requested
Eurodollar Borrowing, then Borrower shall be deemed to have selected an Interest
Period of one month's duration. Promptly following receipt of a Borrowing
Request in accordance with this Section, Administrative Agent shall advise each
Working Capital Lender, in the case of Borrowings of Working Capital Loans, or
each Syndicated Lender, in the case of Borrowings of Term Loans, of the details
thereof and of the amount of such Lender's Loan to be made as part of the
requested Borrowing.

              (b) Approval by QUALCOMM. QUALCOMM agrees to approve and sign any
Borrowing Request for any Working Capital Loan under Section 2.1(a) or Section
2.2(a) or in connection with the issuance, amendment, renewal or extension any
Letter of Credit under Section 2.4(b) so long as Borrower shall first have
delivered to QUALCOMM a certificate, substantially in the form of Exhibit B-2,
signed by an Authorized Officer of Borrower, stating that the requested
Borrowing or Letter of Credit will be used to pay or support Permitted Usage
Category expenses, which certificate shall include (i) a breakdown (the "Budget
Breakdown") by Permitted Usage Category of the amount of expenditures and Letter
of Credit support as of such date and (ii) the amount requested according to the
unexpended and unsupported portion of such

                                       32
<PAGE>

Permitted Usage Categories as set forth in the Budget. Each delivery of a
Borrowing Request signed by QUALCOMM in accordance with Section 2.6(a), and each
delivery of a request for the issuance, amendment, renewal or extension of a
Letter of Credit signed by QUALCOMM in accordance with Section 2.4(b), if made
in conjunction with any Borrowing under the Syndicated Working Capital Facility
(including any Borrowing of Syndicated Working Capital Loans and any Borrowing
of Term Loans) or any issuance, amendment, renewal or extension of any Letter of
Credit, shall be deemed to constitute (A) a confirmation on the date thereof by
QUALCOMM of the QUALCOMM Guaranty and QUALCOMM's obligations thereunder and (B)
a representation and warranty by QUALCOMM on the date thereof as to the matters
specified in paragraph (d) of Section 5.3 or in paragraph (a) of Section 5.5, as
the case may be.

              (c) Capitalized Interest Borrowings. To request a Capitalized
Interest Borrowing, Borrower shall notify Administrative Agent of such request
by telephone (a) in the case of a Eurodollar Borrowing, not later than 11:00
a.m., New York City time, three (3) Business Days before the date of the
proposed Borrowing, or (b) in the case of a Base Rate Borrowing, not later than
11:00 a.m., New York City time, one (1) Business Day before the date of the
proposed Borrowing. Each such telephonic Borrowing Request shall be irrevocable
and shall be confirmed promptly by hand delivery or facsimile to Administrative
Agent of a written Capitalized Interest Loan Request in the form of Exhibit C,
approved by Administrative Agent and signed by Borrower. Each such telephonic
and written Capitalized Interest Loan Request shall specify the following
information in compliance with Section 2.5:

                     (i) the aggregate amount of the requested Borrowing;

                     (ii) the date of such Borrowing, which shall be a Business
Day and (A) an Interest Payment Date, (B) a date on which fees are payable under
this Agreement in connection with any Letter of Credit or (C) a date on which
the Underwriting Fee is payable;

                     (iii) whether such Borrowing is to be a Base Rate Borrowing
or a Eurodollar Borrowing; and

                     (iv) in the case of a Eurodollar Borrowing, the initial
Interest Period to be applicable thereto, which shall be a period contemplated
by the definition of the term "Interest Period".

If no election as to the Type of Capitalized Interest Borrowing is specified,
then the requested Capitalized Interest Borrowing shall be a Base Rate
Borrowing. If no Interest Period is specified with respect to any requested
Eurodollar Capitalized Interest Borrowing, then Borrower shall be deemed to have
selected an Interest Period of one month's duration. With respect to Capitalized
Interest Loans to be made for the payment of interest on the Working Capital
Loans, if Borrower has not delivered a Capitalized Interest Loan Request on or
before the Business Day prior to the next succeeding Interest Payment Date, a
Capitalized Interest Loan Request shall be deemed to have been made on such date
(a "Deemed Capitalized Interest Loan Request") for a Base Rate Loan in the
amount of the interest payment to become due and payable on such Interest
Payment Date. Promptly following receipt of a Capitalized Interest Loan Request
or a Deemed Capitalized Interest Loan Request in accordance with this Section,
Administrative Agent shall

                                       33
<PAGE>

advise each Capitalized Interest Lender of the details thereof and of the amount
of such Capitalized Lender's Capitalized Interest Loan to be made as part of the
requested Borrowing.

       2.7 Funding of Borrowings.

              (a) Each Lender shall make each Loan to be made by it hereunder on
the proposed date thereof by wire transfer of immediately available funds by
12:00 noon, New York City time, to the account of Administrative Agent most
recently designated by it for such purpose by notice to the Lenders.
Administrative Agent shall make such Loans available to Borrower by promptly
crediting the amounts so received, in like funds, to an account of Borrower
maintained with Administrative Agent in New York City and designated by Borrower
in the applicable Borrowing Request or Capitalized Interest Loan Request;
provided that Base Rate Syndicated Working Capital Loans made to finance the
reimbursement of an LC Disbursement as provided in Section 2.4(e) shall be
remitted by Administrative Agent to the Issuing Bank; provided, further, that
Capitalized Interest Loans made to pay fronting fees in respect of Letters of
Credit or any other amounts due and payable by Borrower to the Issuing Bank
shall be remitted by Administrative Agent to the Issuing Bank; provided,
further, that Capitalized Interest Loans made to pay interest on Working Capital
Loans, interest due on Term Loans, or participation fees due in respect of
Letters of Credit shall be (i) disbursed on behalf of Borrower directly to
Administrative Agent for the ratable account of the Lenders (other than
QUALCOMM) entitled to receive such payment of interest or fees (net of any
amounts described in clause (ii) of this paragraph that are due and payable to
QUALCOMM from such payment in accordance with the QUALCOMM Guaranty) and (ii)
withheld by (or, to the extent QUALCOMM is not the sole Capitalized Interest
Lender, paid to) QUALCOMM, as the "Guarantor" under the QUALCOMM Guaranty, to
the extent QUALCOMM, as the "Guarantor" under the QUALCOMM Guaranty, is entitled
to receive from the proceeds of such Capitalized Interest Loan payment of
interest on Vendor Working Capital Loans or payment of the Guaranty Fee as and
when due in accordance with the QUALCOMM Guaranty; and provided, further, that
the new Syndicated Loan to be funded by the Additional Lender in accordance with
the proviso to the first sentence of Section 2.5(a) shall be paid directly to
the other Syndicated Lenders as contemplated in such sentence.

              (b) Unless Administrative Agent shall have received notice from a
Lender prior to the proposed date of any Borrowing that such Lender will not
make available to Administrative Agent such Lender's share of such Borrowing,
Administrative Agent may assume that such Lender has made such share available
on such date in accordance with paragraph (a) of this Section and may, in
reliance upon such assumption, make available to Borrower a corresponding
amount. In such event, if a Lender has not in fact made its share of the
applicable Borrowing available to Administrative Agent, then the applicable
Lender and Borrower severally agree to pay to Administrative Agent forthwith on
demand such corresponding amount with interest thereon, for each day from and
including the date such amount is made available to Borrower to but excluding
the date of payment to Administrative Agent, at (i) in the case of such Lender,
the greater of the Federal Funds Rate and a rate determined by Administrative
Agent in accordance with banking industry rules on interbank compensation or
(ii) in the case of Borrower, the interest rate applicable to Base Rate Loans.
If

                                       34
<PAGE>

such Lender pays such amount to Administrative Agent, then such amount shall
constitute such Lender's Loan included in such Borrowing.

       2.8 Interest Elections.

              (a) Each Borrowing initially shall be of the Type specified in the
applicable Borrowing Request or Capitalized Interest Loan Request, as the case
may be, and, in the case of a Eurodollar Borrowing, shall have an initial
Interest Period as specified in such Borrowing Request or Capitalized Interest
Loan Request. Thereafter, Borrower may elect to convert such Borrowing to a
different Type or to continue such Borrowing and, in the case of a Eurodollar
Borrowing, may elect Interest Periods therefor, all as provided in this Section.
Borrower may elect different options with respect to different portions of the
affected Borrowing, in which case each such portion shall be allocated ratably
among the Lenders holding the Loans comprising such Borrowing, and the Loans
comprising each such portion shall be considered separate Borrowings.

              (b) To make an election pursuant to this Section, Borrower shall
notify Administrative Agent of such election by telephone by the time that a
Borrowing Request would be required under Section 2.6 if Borrower were
requesting a Borrowing of the Type resulting from such election to be made on
the effective date of such election. Each such telephonic Interest Election
Request shall be irrevocable and shall be confirmed promptly by hand delivery or
facsimile to Administrative Agent of a written Interest Election Request in a
form approved by Administrative Agent and signed by Borrower.

              (c) Each telephonic and written Interest Election Request shall be
in the form of Exhibit D to this Agreement, shall evidence the joint and several
guarantee "avalado" by the Guarantors, shall be attached to the Pagare which
evidences such Loans by Administrative Agent (if it holds possession of the
Pagare) and otherwise by the relevant Lender, and shall specify the following
information in compliance with Section 2.5:

                     (i) the Borrowing to which such Interest Election Request
applies and, if different options are being elected with respect to different
portions thereof, the portions thereof to be allocated to each resulting
Borrowing (in which case the information to be specified pursuant to clauses
(iii) and (iv) below shall be specified for each resulting Borrowing);

                     (ii) the effective date of the election made pursuant to
such Interest Election Request, which shall be a Business Day;

                     (iii) whether the resulting Borrowing is to be a Base Rate
Borrowing or a Eurodollar Borrowing; and

                     (iv) if the resulting Borrowing is a Eurodollar Borrowing,
the Interest Period to be applicable thereto after giving effect to such
election, which shall be a period contemplated by the definition of the term
"Interest Period".

                                       35
<PAGE>

If any such Interest Election Request requests a Eurodollar Borrowing but does
not specify an Interest Period, then Borrower shall be deemed to have selected
an Interest Period of one month's duration.

              (d) Promptly following receipt of a Interest Election Request with
respect to a Borrowing of any Class, Administrative Agent shall advise each
Lender making or holding Loans of that Class of the details thereof and of such
Lender's portion of each resulting Borrowing.

              (e) If Borrower fails to deliver a timely Interest Election
Request with respect to a Eurodollar Borrowing prior to the end of the Interest
Period applicable thereto, then, unless such Borrowing is repaid as provided
herein, at the end of such Interest Period such Borrowing shall be converted to
a Base Rate Borrowing. Notwithstanding any contrary provision hereof, if an
Event of Default has occurred and is continuing and Administrative Agent, at the
request of the Required Syndicated Lenders or, if the Exposure of all Syndicated
Lenders is zero and the Syndicated Working Capital Commitments and the Term Loan
Commitments have been terminated or expired, at the request of the Required
Lenders, so notifies Borrower and QUALCOMM, then, so long as an Event of Default
is continuing (i) no outstanding Borrowing may be converted to or continued as a
Eurodollar Borrowing and (ii) unless repaid, each Eurodollar Borrowing shall be
converted to a Base Rate Borrowing at the end of the Interest Period applicable
thereto.

       2.9 Termination and Reduction of, and Increases in, Commitments; Further
Syndication.

              (a) Unless previously terminated, the Commitments shall terminate
on the Scheduled Maturity Date.

              (b) Borrower may at any time terminate, or from time to time
reduce, the Commitments, without premium or penalty, as provided in this
Section; provided that (i) each reduction of the Commitments shall be in an
amount that is an integral multiple of $100,000, (ii) each reduction of the
Total Working Capital Commitment shall be in an amount that is not less than
$5,000,000, (iii) Borrower shall not terminate or reduce the Total Commitment
if, after giving effect to any concurrent prepayment of Loans, the sum of the
aggregate Exposures of all Lenders would exceed the Total Commitment; (iv)
Borrower shall not terminate or reduce the Commitments under any Facility if,
after giving effect to any concurrent prepayment of Loans under that Facility,
the sum of the aggregate Exposures of all Lenders under that Facility would
exceed the aggregate Commitments of all Lenders under that Facility; (v) unless
the Required Syndicated Lenders, in their sole discretion, shall consent,
Borrower shall not partially reduce the Syndicated Working Capital Commitment
unless the Vendor Working Capital Commitment shall first have been reduced to
zero.

              (c) Borrower shall notify Administrative Agent in writing (with a
copy to QUALCOMM) of any election to terminate or reduce the Commitments under
paragraph (b) of this Section at least five (5) Business Days (which notice
shall be deemed to be given on a certain day only if given before 12:00 noon New
York City time) prior to the effective date of

                                       36
<PAGE>

such termination or reduction, specifying such election and the effective date
thereof. Promptly following receipt of any notice, Administrative Agent shall
advise Lenders of the contents thereof. Each notice delivered by Borrower
pursuant to this Section shall be irrevocable; provided that a notice of
termination of the Total Commitment delivered by Borrower may state that such
notice is conditioned upon the effectiveness of other credit facilities, in
which case such notice may be revoked by Borrower (by notice to Administrative
Agent on or prior to the specified effective date) if such condition is not
satisfied.

              (d) The Commitments under any Facility shall be reduced, from time
to time, by the principal amounts of any Loans under such Facility that are
required to be prepaid pursuant to Section 2.15, and the amounts so prepaid may
not be reborrowed; provided that the Commitments shall not be reduced and such
amounts may be reborrowed (subject to the terms and conditions set forth in this
Agreement) to the extent, if any, set forth in a notice delivered by QUALCOMM
(with the consent and acknowledgement of Borrower) modifying the terms of clause
(a) of Section 2.15 as contemplated by the proviso thereto.

              (e) Any termination or reduction of the Commitments shall be
permanent. Each reduction of the Commitments under any Facility shall be made
ratably among the Lenders under such Facility in accordance with their
respective percentages of the total Commitments under such Facility.

              (f) Lenders who are Syndicated Lenders as of the Closing Date
shall each use reasonable efforts to syndicate the Vendor Working Capital
Facility to additional banks or financial institutions that would satisfy the
requirements of Eligible Assignees (each, an "Additional Lender"). If, as a
result of any such Syndication, Administrative Agent (at the direction of any
Syndicated Lender) notifies Borrower and QUALCOMM, at any time and from time to
time, that one or more Additional Lenders have agreed to underwrite all or a
portion (but not less than $5,000,000) of QUALCOMM's Vendor Working Capital
Commitment and Vendor Working Capital Loans hereunder, then (i) QUALCOMM shall
sell and assign to each such Additional Lender the portion to be so underwritten
of QUALCOMM's rights, and delegate the corresponding obligations, as a Vendor
Working Capital Lender under this Agreement (including the corresponding portion
of QUALCOMM's Vendor Working Capital Commitment and the Vendor Working Capital
Loans owing to it at that time), in accordance with the provisions of Section
11.4, and (ii) such Additional Lender and QUALCOMM shall execute and deliver to
Administrative Agent an Assignment Agreement and (if such Additional Lender is
not already a Lender) an Administrative Questionnaire and take such other
actions as required by Section 11.4. Immediately upon the effectiveness of any
such assignment to any Additional Lender, unless such assignment takes effect on
or after the Commitment Termination Date applicable to Syndicated Working
Capital Loans, and without any further action on any Person's part, (A) the
portion of the Vendor Working Capital Commitment so delegated shall be deemed to
constitute a Syndicated Working Capital Commitment of such Additional Lender,
(B) the Vendor Working Capital Loans so assigned shall be deemed to be
Syndicated Working Capital Loans of such Additional Lender, (C) such Additional
Lender shall become a Syndicated Lender and not a Vendor Working Capital Lender
for all purposes under this Agreement, and, as such, shall be subject to all the
duties (including with respect to Loans and Letters of Credit) of a Syndicated
Lender under this Agreement and shall be entitled to all the rights, benefits
and privileges of a

                                       37
<PAGE>

Syndicated Lender under this Agreement, the QUALCOMM Guaranty and the other Loan
Documents, (D) the Total Syndicated Working Capital Commitment shall be
increased, and the Total Vendor Working Capital Commitment shall be reduced,
each by the amount of such delegation, and (E) without duplication, QUALCOMM's
Vendor Working Capital Commitment shall be reduced by the amount of such
delegation. If, as a result of any assignment and delegation or series of
assignments and delegations pursuant to this Section 2.9(f), the Vendor Working
Capital Commitment shall be reduced to zero and all Vendor Working Capital Loans
(if any) shall be deemed to be converted to Syndicated Working Capital Loans,
then, subject to the subsequent application of Section 2.9(g), all references in
this Agreement to Vendor Working Capital Loans or Vendor Working Capital Lenders
(or similar words) shall be disregarded. In no event shall any assignment and
delegation under this Section 2.9(f) result in any increase or decrease in the
Total Working Capital Commitment. If any Vendor Working Capital Loans are
outstanding when any Additional Lender acquires all or a portion of QUALCOMM's
Vendor Working Capital Commitment and Vendor Working Capital Loans as provided
in this Section 2.9(f), QUALCOMM shall assign all or such portion of its Vendor
Working Capital Commitment and such Vendor Working Capital Loans to such
Additional Lender in accordance with this Section 2.9(f) only on the last day of
the Interest Period for such Vendor Working Capital Loans unless Borrower
otherwise consents; provided, in any event, that when such Additional Lender's
new Syndicated Loan is applied to the payment of the relevant outstanding
Syndicated Loans pursuant to Section 2.5(a), Borrower shall pay all amounts, if
any, due in respect thereof under Section 4.2, and such payment by Borrower
shall not be a condition to the effectiveness of any such assignment.

              (g) If QUALCOMM shall acquire some or all of the Syndicated
Lenders' Syndicated Working Capital Loans, LC Exposures (if any) and Syndicated
Working Capital Commitments (pursuant to the QUALCOMM Guaranty or, to the extent
permitted by this Agreement and the QUALCOMM Guaranty, otherwise), then
immediately upon the effectiveness of any such assignment and delegation to
QUALCOMM, and without any further action on any Person's part, (i) the portion
of each Syndicated Working Capital Commitment so delegated shall be deemed to
constitute an additional Vendor Working Capital Commitment of QUALCOMM, (ii) the
Syndicated Working Capital Loans so assigned shall be deemed to be Vendor
Working Capital Loans of QUALCOMM, (iii) QUALCOMM shall become or remain a
Vendor Working Capital Lender and not a Syndicated Lender for all purposes under
this Agreement, and, as such, shall be subject to all the duties (including with
respect to Loans) of a Vendor Working Capital Lender under this Agreement, shall
be entitled to all the rights, benefits and privileges of a Vendor Working
Capital Lender under this Agreement and the other Loan Documents, and shall not
be entitled to the benefit of the QUALCOMM Guaranty nor to exercise any rights
or powers (with respect to voting, consents, waivers or otherwise) of a
Syndicated Lender under this Agreement or the other Loan Documents, provided,
however, that QUALCOMM shall remain obligated as a Syndicated Lender under
Section 2.4 with respect to any LC Exposure acquired by it from a Syndicated
Lender (but not with respect to any additional Letter of Credit issued
thereafter), and the amount of its LC Exposure shall be included in the
aggregate LC Exposures of all Syndicated Lenders for purposes of determining the
availability of any additional Letters of Credit required to be issued, amended,
renewed or extended under Section 2.4(b), (iv) the Total Vendor Working Capital
Commitment shall be increased, and the Total Syndicated Working Capital
Commitment shall be reduced, each by the amount of such

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<PAGE>

delegation, and (v) without duplication, each assigning Syndicated Lender's
Syndicated Working Capital Commitment shall be reduced by the amount of such
delegation. In no event shall any assignment and delegation contemplated by this
Section 2.9(g) (A) result in any increase or decrease in the Total Working
Capital Commitment or (B) limit the right of the Issuing Bank under Section 11.4
to consent, in its sole and absolute discretion, to any assignment and
delegation of any Lender's LC Exposure under this Agreement.

       2.10 Repayment of Loans.

              (a) Borrower hereby irrevocably and unconditionally promises to
pay (i) to Administrative Agent for the account of each Syndicated Lender the
then unpaid principal amount of each Syndicated Working Capital Loan on the
Commitment Termination Date applicable to Syndicated Working Capital Loans,
provided that, if the Term-Out Option shall have become effective under clause
(b) of this Section, such Syndicated Working Capital Loan shall be converted to
a Term Loan on such Commitment Termination Date as provided herein, (ii) to
Administrative Agent for the account of each Syndicated Lender the then unpaid
principal amount of each Term Loan on the Scheduled Maturity Date, (iii) to
Administrative Agent for the account of each Vendor Working Capital Lender the
then unpaid principal amount of each Vendor Working Capital Loan on the
Scheduled Maturity Date, and (iv) to Administrative Agent for the account of
each Capitalized Interest Lender the then unpaid principal amount of each
Capitalized Interest Loan on the Scheduled Maturity Date.

              (b) Borrower shall have the option (the "Term-Out Option"), to
convert the principal balance of all Syndicated Working Capital Loans
outstanding on the Commitment Termination Date to Term Loans, subject to the
terms and conditions of this Section 2.10(b) and Section 2.1. To make an
election pursuant to this Section 2.10(b), Borrower shall notify Administrative
Agent of such election and request a Borrowing of Term Loans by not later than
11:00 a.m., New York City time, five (5) Business Days before the Commitment
Termination Date. Such telephonic election to exercise the Term-Out Option and
each Borrowing Request in connection with a Term Loan shall be irrevocable and
shall be confirmed promptly by hand delivery or facsimile to Administrative
Agent of a written notice of election and a Borrowing Request, signed by
Borrower, in accordance with Section 2.6. Any Borrowing of Term Loans for the
purposes set forth in Section 2.1(d)(i) upon the election of the Term-Out Option
shall be subject to the requirements applicable to Borrowing Requests under
Section 2.6(a) (other than the approval of QUALCOMM of such Borrowing), to the
conditions of Section 2.1(c) and (d), and to the conditions of Section 5.4. Any
Borrowing of Term Loans for the purposes set forth in Section 2.1(d)(ii) upon
the election of the Term-Out Option shall be subject to the requirements
applicable to Borrowing Requests under Section 2.6(a) and (b), to the conditions
of Section 2.1(c) and (d), and to the conditions of Section 5.3 or Section 5.5,
as the case may be. The effective date of such election and the only date on
which any Borrowing of Term Loans shall be made, subject to the terms and
conditions of this Agreement, shall be the Commitment Termination Date
applicable to Syndicated Working Capital Loans.

       2.11 Evidence Of Debt.

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<PAGE>

              (a) Each Lender shall maintain in accordance with its usual
practice an account or accounts evidencing the indebtedness of Borrower to such
Lender resulting from each Loan made by such Lender, including the amounts of
principal and interest payable and paid to such Lender from time to time
hereunder.

              (b) Administrative Agent shall maintain accounts in which it shall
record (i) the amount of each Loan made hereunder, the Class and Type thereof
and the Interest Period applicable thereto, (ii) the amount of any principal or
interest due and payable or to become due and payable from Borrower to each
Lender hereunder and (iii) the amount of any sum received by Administrative
Agent hereunder for the account of Lenders and each Lender's share thereof.

              (c) The entries made in the accounts maintained pursuant to
paragraph (b) or (d) of this Section shall be prima facie evidence of the
existence and amounts of the obligations recorded therein; provided that the
failure of any Lender or Administrative Agent to maintain such accounts or any
error therein shall not in any manner affect the obligation of Borrower to repay
the Loans in accordance with the terms of this Agreement.

              (d) Within five (5) Business Days of the making of any Loan,
Borrower shall execute and deliver to Administrative Agent to hold on behalf of
the Lender making such Loan a promissory note of Borrower payable to such Lender
substantially in the form of Exhibit A with appropriate insertions as to issue
date, principal repayment dates, principal amount, and Applicable Margin (each,
a "Pagare"), which promissory note shall be jointly and severally guaranteed
"avalado" by the Guarantors and shall be dated the date such Loan is made.
Notwithstanding anything to the contrary contained herein, upon the request of
Administrative Agent at any time, Borrower shall promptly execute and deliver to
Administrative Agent to hold on behalf of such Lender a replacement Pagare with
respect to any Pagare theretofore issued in order to conform the terms thereof
to the terms of this Agreement, which replacement Pagare shall be jointly and
severally guaranteed "avalado" by the Guarantors and shall be dated the date on
which the replacement is to be effective. Concurrently therewith, Administrative
Agent or Lender, as the case may be, shall return the replaced Pagare to
Borrower.

              (e) Upon the written request of any Lender, Administrative Agent
shall forward to such Lender (i) all Pagares payable to such Lender received by
Administrative Agent on or prior to such date (the "Request Date") within ten
(10) Business Days of receipt by Administrative Agent of such request, and (ii)
all Pagares payable to such Lender received by Administrative Agent after the
Request Date within ten (10) Business Days of the receipt by Administrative
Agent thereof; provided that any Lender requesting such delivery of its Pagares
shall reimburse Administrative Agent for all costs and expenses incurred by
Administrative Agent in the distribution thereof.

              (f) In the case of any conflict between the terms of this
Agreement and any Pagare, the terms of this Agreement shall control. Without
limiting the generality of the foregoing, all Loans made hereunder shall accrue
interest from the date such Loan is made and, to the extent not evidenced by a
Pagare, shall otherwise be treated as a Loan hereunder irrespective of
Borrower's execution or nonexecution of a Pagare evidencing such Loan.

                                       40
<PAGE>

              (g) Upon partial repayment of any principal amount evidenced by
any Pagares, Borrower may execute and deliver to Administrative Agent to hold on
behalf of each Lender a replacement Pagare taking into account such prepayment,
which replacement Pagare shall be jointly and severally guaranteed "avalado" by
the Guarantors and shall be dated the date on which the replacement is to be
effective. Concurrently therewith, Administrative Agent or Lender, as the case
may be, shall return the replaced Pagare to Borrower.

              (h) Upon the payment in full of all Obligations and the
termination of the Commitments, Administrative Agent and Lenders, as applicable,
shall return all Pagares in their possession to Borrower.

              (i) In addition to the Pagares, Borrower agrees to execute and
deliver to each Lender, promptly upon request by such Lender, a promissory note
evidencing Borrower's Indebtedness to such Lender under this Agreement in the
amount of such Lender's Commitment, which promissory note shall be satisfactory
in form and substance to such Lender and shall be consistent with the terms of
this Agreement.

       2.12 Interest.

              (a) The Loans constituting each Eurodollar Borrowing shall bear
interest at the Eurodollar Rate for the Interest Period in effect for such
Borrowing plus the relevant Applicable Margin. The Loans constituting each Base
Rate Borrowing shall bear interest at the Base Rate plus the relevant Applicable
Margin.

              (b) Notwithstanding the foregoing, if any principal of or interest
on any Loan or any fee or other amount payable by Borrower hereunder is not paid
when due, whether at stated maturity, upon acceleration or otherwise, such
overdue amount shall bear interest, after as well as before judgment, at a rate
per annum equal to (i) in the case of overdue principal of any Loan, five
percent (5%) plus the rate otherwise applicable to such Loan as provided in the
preceding paragraph of this Section or (ii) in the case of any other amount,
five percent (5%) plus the rate applicable to Base Rate Loans as provided in
paragraph (a) of this Section. Upon the occurrence of any Event of Default other
than under Section 9.1(a), and (subject to the preceding sentence) for so long
as such Event of Default shall continue, Borrower shall, at the option of
QUALCOMM, pay interest on all Loans at a rate per annum equal to two percent
(2%) plus the rate otherwise applicable to such Loans. Notwithstanding anything
to the contrary herein, upon the Scheduled Maturity Date, if an Event of Default
shall exist, the interest rate on all Loans and other amounts outstanding
hereunder shall be a fixed rate of twenty-two and one-half percent (22.5%) per
annum and, if the Obligations shall not have been fully and finally satisfied
prior to that date three (3) months following the Scheduled Maturity Date, shall
increase to twenty-five (25%) per annum.

              (c) Interest on each Loan shall accrue from the date of the
Borrowing of such Loan to the date on which such Loan is paid in full. Accrued
Interest on each Loan shall be payable (i) in the case of Base Rate Loans, on
the last Business Day of each calendar quarter, and (ii) in the case of each
Eurodollar Loan, on the last day of each Interest Period applicable thereto and,
in the case of an Interest Period in excess of three months, on each date
occurring at three

                                       41
<PAGE>

month intervals after the first day of such Interest Period and (iii) in the
case of all Loans, on any prepayment (on the amount prepaid), at maturity
(whether by acceleration or otherwise) and, after such maturity, on demand;
provided that accrued and unpaid interest owing to any Syndicated Lender on the
portion of any Syndicated Loan prepaid pursuant to the proviso to the first
sentence of Section 2.5(a) (to the extent accruing prior to the date of such
partial prepayment) shall be payable to such Syndicated Lender on the earlier of
(y) the first date on which interest is payable to the relevant Additional
Lender in respect of the new Loan from the proceeds of which such Syndicated
Loan was partially prepaid and (z) the date on which such interest would have
been payable but for such prepayment.

              (d) Anything in this Section 2.12 to the contrary notwithstanding,
and unless Borrower shall notify Administrative Agent that this Section 2.12(d)
shall not be applicable to any of the interest payments on the Capitalized
Interest Loans otherwise covered hereby, the interest that accrues on
Capitalized Interest Loans shall not be required to be paid in cash on any
Interest Payment Date occurring prior to Maturity, but on each such Interest
Payment Date relating to a Capitalized Interest Loan such accrued interest on
such Capitalized Interest Loan shall be capitalized and added to the principal
of the Capitalized Interests Loans as a new Capitalized Interest Loan and the
Total Capitalized Interest Commitment (and each Capitalized Interest Lender's
Capitalized Interest Commitment as a proportionate share thereof) shall be
increased by the amount of such capitalized accrued interest. Each new
Capitalized Interest Loan made under this Section 2.12(d) shall be a Base Rate
Loan unless Borrower shall request otherwise in accordance with Section 2.6(c).

              (e) All interest hereunder shall be computed on the basis of a
year of 360 days, except that interest computed by reference to the Base Rate
(other than at times when the Base Rate is based on the Federal Funds Rate)
shall be computed on the basis of a year of 365 days (or 366 days in a leap
year), and in each case shall be payable for the actual number of days elapsed
(including the first day but excluding the last day). The applicable Base Rate
or Eurodollar Rate shall be determined by Administrative Agent, and such
determination shall be conclusive absent manifest error.

              (f) Notwithstanding any provision of this Agreement to the
contrary, and irrespective of any Borrowing Notice or Interest Election Request
delivered by Borrower under this Agreement, each Capitalized Interest Loan and
each Vendor Working Capital Loan borrowed prior to the delivery of the Usury
Permit under Section 7.7 (each, a "Prior Loan") shall bear interest at the fixed
rate of ten percent (10%) per annum from the date made until the date repaid;
provided, however, that, upon the delivery of the Usury Permit in accordance
with Section 7.7, each Prior Loan shall be deemed to have been repaid in full
with the proceeds of a new Capitalized Interest Loan or Vendor Working Capital
Loan, as the case may be (each, a "New Loan"), the Borrowing of which shall not
be subject to the requirements of clause (a) or (c), as applicable, of Section
2.6 (other than, in each case, clauses (iii) and (iv) thereof and the first two
sentences thereafter) or Section 5.3 or 5.4, and such New Loan shall bear
interest (in lieu of the fixed rate stated above), accrued retroactively to the
date on which the corresponding Prior Loan was borrowed until the date on which
such New Loan is repaid, at the rate that would have applied under Section
2.12(a) to such Prior Loan pursuant to the Borrowing Request and

                                       42
<PAGE>

any subsequent Interest Election Request with respect to such Prior Loan but for
this Section 2.12(f).

       2.13 Additional Interest on Eurodollar Loans; Interest Rate
Determinations; Alternate Rate of Interest.

              (a) Borrower shall pay to each Lender, upon demand, additional
interest on the unpaid principal amount of each Eurodollar Loan of such Lender,
from the date of the Borrowing of such Eurodollar Loan until such principal
amount is paid in full, at an interest rate per annum equal at all times to the
remainder obtained by subtracting (i) the Eurodollar Rate for each Interest
Period for such Borrowing from (ii) the rate obtained by dividing such
Eurodollar Rate by a percentage equal to 100% minus the Eurodollar Rate Reserve
Percentage of such Lender for such Interest Period, payable on each date on
which interest is payable on such Loan. Such additional interest shall be
determined by such Lender and notified to Borrower through Administrative Agent.

              (b) Each Reference Bank agrees, upon the request of Administrative
Agent, to furnish to Administrative Agent timely information for the purpose of
determining each Eurodollar Rate. If any one or more of the Reference Banks
shall not furnish such timely information to Administrative Agent for the
purpose of determining any such interest rate, Administrative Agent shall
determine such interest rate on the basis of timely information furnished by the
remaining Reference Banks (subject to the provisions set forth in the definition
of "Eurodollar Rate" in Section 1.01 and to clause (c) below).

              (c) If prior to the commencement of any Interest Period for any
Eurodollar Borrowing either (i) Administrative Agent determines (which
determination shall be conclusive absent manifest error) that adequate and
reasonable means do not exist for ascertaining the Eurodollar Rate for such
Interest Period or (ii) Administrative Agent is advised by the Required
Syndicated Lenders (in the case of Syndicated Working Capital Loans and Term
Loans) or the Required Lenders (in the case of all other Loans) that the
Eurodollar Rate for such Interest Period will not adequately and fairly reflect
the cost to such Lenders (or Lender) of making or maintaining their Loans (or
its Loan) included in such Borrowing for such Interest Period, then
Administrative Agent shall give notice thereof to Borrower and Lenders by
telephone or facsimile as promptly as practicable thereafter and, until
Administrative Agent notifies Borrower and Lenders that the circumstances giving
rise to such notice no longer exist, (y) any Interest Election Request that
requests the conversion of any Borrowing to, or continuation of any Borrowing
as, a Eurodollar Borrowing shall be ineffective, and (z) if any Borrowing
Request requests a Eurodollar Borrowing, such Borrowing shall be made as a Base
Rate Borrowing.

       2.14 Voluntary Prepayments.

              (a) Borrower shall have the right at any time and from time to
time to prepay any Borrowing in whole or in part, subject to prior notice in
accordance with paragraph (b) of this Section; provided that Borrower shall not
have the right to prepay any Borrowing comprising Vendor Working Capital Loans
or Capitalized Interest Loans without first repaying in full all Syndicated
Working Capital Loans and all Term Loans then outstanding, unless the

                                       43
<PAGE>

Required Syndicated Lenders shall otherwise consent; and provided, further, that
any voluntary prepayment by Borrower pursuant to this Section 2.14 shall be
permitted only if such prepayment shall not require any payment or prepayment,
pro rata or otherwise, of any Senior Indebtedness under the Vendor Facilities.

              (b) Borrower shall notify Administrative Agent by telephone
(confirmed by facsimile) of any prepayment hereunder not later than 11:00 a.m.,
New York City time, five (5) Business Days before the date of prepayment. Each
such notice shall be irrevocable and shall specify the prepayment date and the
principal amount of each Borrowing or portion thereof to be prepaid; provided
that, if a notice of prepayment is given in connection with a conditional notice
of termination of the Commitments as contemplated by Section 2.9(c), then such
notice of prepayment may be revoked if such notice of termination is revoked in
accordance with Section 2.9(c). Promptly following receipt of any such notice
relating to a Borrowing, Administrative Agent shall advise the Lenders of the
contents thereof. Each partial prepayment of any Borrowing shall be in a minimum
principal amount of $2,500,000, and no partial prepayment of a Borrowing shall
reduce the aggregate principal amount of the Loans outstanding pursuant to such
Borrowing to an amount less than the minimum amount that would be permitted to
be requested in the case of a Borrowing of the same Type as provided in Section
2.5. Each prepayment of a Borrowing shall be applied ratably to the Loans
included in the prepaid Borrowing. Prepayments shall be accompanied by accrued
interest to the extent required by Section 2.12. Notwithstanding the foregoing,
the provisions of this Section 2.14(b) shall not apply to any partial
prepayments of Syndicated Loans from the proceeds of a new Syndicated Loan by an
Additional Lender pursuant to the proviso to the first sentence of Section
2.5(a) and Section 2.9(f).

       2.15 Mandatory Prepayments.

       All net proceeds from (a)any issuance of Capital Stock by any member of
the Borrower Group, excluding the proceeds of the Existing Equity Commitments
and, with the consent of QUALCOMM, the proceeds of any other contributions to
the equity capital of any member of the Borrower Group, and (b) any Indebtedness
(other than Indebtedness to the extent permitted under subsections (a), (b),
(c), (e), (f), (i), (j) and (l) of Section 6.04 of the Common Agreement as in
effect on the date hereof and the GTE Deferred Fee) issued or incurred by any
member of the Borrower Group, shall be paid by such member of the Borrower Group
on behalf of Borrower to Administrative Agent promptly upon receipt by such
member of the Borrower Group; provided, however, that in the event QUALCOMM
(with the consent and acknowledgement of Borrower) delivers written notice to
Administrative Agent that repayment from the proceeds of any such issuance of
Capital Stock is not required or that such repayment is required but reborrowing
of the amount repaid will be permitted to the extent of such repayment, the
requirements of clause (a) of this Section shall be modified as set forth in
such written notice. Any amounts received by Administrative Agent in
satisfaction of Borrower's prepayment obligations under this Section shall be
applied first to the payment of any Base Rate Loans then outstanding and, next,
to the payment of any Eurodollar Loans then outstanding. Subject to the
immediately preceding sentence, such prepayments shall be applied in accordance
with Section 4.5(b).

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<PAGE>

       2.16 Syndication. QUALCOMM, Administrative Agent and each Syndicated
Lender shall have the right from time to time to arrange, or to attempt to
arrange, a syndication of the Commitments, Loans and LC Exposures under the
Facilities (a "Syndication"). Borrower and each other member of the Borrower
Group shall cooperate with QUALCOMM, Administrative Agent and each Syndicated
Lender to facilitate any Syndication, and Borrower agrees, at its expense, to
execute and deliver such documents (including amendments to this Agreement
reasonably requested by QUALCOMM or Administrative Agent relating to such
Syndication and which do not impose on Borrower additional financial
obligations, conditions precedent, negative covenants or events of default),
furnish such information, attend such meetings, assist QUALCOMM, Administrative
Agent and the Syndicated Lenders, and take any and all other actions as may be
reasonably requested by QUALCOMM, Administrative Agent, the Issuing Bank or any
Syndicated Lender in connection with any Syndication.

SECTION 3. FEES; CONSIDERATION FOR QUALCOMM GUARANTY.

       3.1 Fees.

              (a) Borrower agrees to pay to Administrative Agent, for its own
account, fees payable in the amounts and at the times provided in Administrative
Agent's Fee Letter.

              (b) Borrower agrees to pay (i) to Administrative Agent for the
account of each Syndicated Lender a participation fee with respect to its
participations in Letters of Credit, which shall accrue at a rate per annum
equal to the Applicable Margin applicable to Eurodollar Loans multiplied by the
average daily amount of such Syndicated Lender's LC Exposure (excluding any
portion thereof attributable to unreimbursed LC Disbursements) during the period
from the Closing Date to the later of the Commitment Termination Date and the
date on which such Syndicated Lender ceases to have any LC Exposure, and (ii) to
the Issuing Bank a fronting fee, which shall accrue at the rate of 0.125% per
annum on the average daily amount of the LC Exposure (excluding any portion
thereof attributable to unreimbursed LC Disbursements) during the period from
the Effective Date to the later of the Commitment Termination Date and the date
on which there ceases to be any LC Exposure, as well as the Issuing Bank's
standard fees with respect to the issuance, amendment, renewal or extension of
any Letter of Credit or processing of drawings thereunder. Participation fees
and fronting fees accrued through and including the last day of March, June,
September and December of each year shall be payable on the third Business Day
following such last day, commencing on the first such date to occur after the
Closing Date; provided that all such fees shall be payable on the date on which
the Syndicated Working Capital Commitments terminate and any such fees accruing
after the date on which the Commitments terminate shall be payable on demand.
Any other fees payable to the Issuing Bank pursuant to this paragraph shall be
payable within five (5) Business Days after demand. All participation fees and
fronting fees shall be computed on the basis of a year of 360 days and shall be
payable for the actual number of days elapsed (including the first day but
excluding the last day).

              (c) All fees payable hereunder shall be paid on the dates due, in
immediately available funds, to Administrative Agent (or to the Issuing Bank, in
the case of fees payable to it)

                                       45
<PAGE>

for distribution, in the case of participation fees, to the Syndicated Lenders.
Fees paid shall not be refundable under any circumstances.

       3.2 Consideration for QUALCOMM Guaranty.

              QUALCOMM shall be entitled to be paid, from the proceeds of
Capitalized Interest Loans, a portion of the interest or fees payable from time
to time by Borrower under this Agreement as the Guaranty Fee in accordance with,
and subject to the terms and conditions of, the QUALCOMM Guaranty and Section
2.7(a) of this Agreement, and the terms of the Guaranty Fee may be modified by
QUALCOMM, Administrative Agent and the Syndicated Lenders in accordance with the
QUALCOMM Guaranty at any time and from time to time without any consent of or
disclosure to any member of the Borrower Group. On the Closing Date, Borrower
shall pay, from the proceeds of the initial Capitalized Interest Loans, the
Underwriting Fee to QUALCOMM in accordance with the QUALCOMM Fee Letter.

SECTION 4. YIELD PROTECTION; PAYMENTS; TAXES; ETC.

       4.1 Increased Costs.

              (a) If, due to either (i) the introduction of or any change in or
in the interpretation of any law or regulation or (ii) the compliance with any
guideline or request from any central bank or other Governmental Authority
(whether or not having the force of law), there shall be any increase in the
cost to any Lender (other than by way of imposition or increase of reserve
requirements included in the Eurodollar Rate Reserve Percentage and compensated
under Section 2.13(a)) or the Issuing Bank of agreeing to make or making,
funding or maintaining, or otherwise related to, Eurodollar Loans or any Letter
of Credit or participation therein, then Borrower shall from time to time, upon
demand by such Lender or the Issuing Bank (with a copy of such demand to
Administrative Agent), pay to Administrative Agent for the account of such
Lender or the Issuing Bank, as the case may be, additional amounts sufficient to
compensate such Lender or the Issuing Bank for such increased cost. A
certificate as to the amount of such increased cost, submitted to Borrower and
Administrative Agent by such Lender or the Issuing Bank, shall be conclusive and
binding for all purposes, absent manifest error.

              (b) If any Lender or the Issuing Bank determines that compliance
with any law or regulation or any guideline or request from any central bank or
other Governmental Authority (whether or not having the force of law) affects or
would affect the amount of capital required or expected to be maintained by such
Lender or the Issuing Bank or such Lender's or the Issuing Bank's holding
company and that the amount of such capital is increased by or based upon the
existence of such Lender's or the Issuing Bank's commitment to lend or extend
credit hereunder and other commitments of this type, or if any Lender or the
Issuing Bank determines that the introduction of or any change in or in the
interpretation of any law or regulation regarding capital requirements has or
would have the effect of reducing the rate of return on such Lender's or the
Issuing Bank's capital or on the capital of such Lender's or the Issuing Bank's
holding company, as a consequence of this Agreement or the Loans made by, or
participations in Letters of Credit held by, such Lender, or the Letters of
Credit issued by the Issuing Bank, to a level below that which such Lender or
the Issuing Bank or such Lender's or the Issuing Bank's

                                       46
<PAGE>

holding company could have achieved but for such introduction or change in or in
the interpretation of such law or regulation (taking into consideration such
Lender's or the Issuing Bank's policies and the policies of such Lender's or the
Issuing Bank's holding company with respect to capital adequacy), then, upon
demand by such Lender or the Issuing Bank (with a copy of such demand to
Administrative Agent), Borrower shall immediately pay to Administrative Agent
for the account of such Lender or the Issuing Bank, as the case may be, from
time to time as specified by such Lender or the Issuing Bank, such additional
amount or amounts as will compensate such Lender or the Issuing Bank or such
Lender's or the Issuing Bank's holding company for any such reduction suffered
and such additional amount or amounts as will compensate such Lender or the
Issuing Bank or such holding company to the extent that such Lender or the
Issuing Bank reasonably determines such increase in capital to be allocable to
the existence of such Lender's or the Issuing Bank's commitment to lend or
extend credit hereunder. A certificate as to such amounts submitted to Borrower
and Administrative Agent by such Lender or the Issuing Bank shall be conclusive
and binding for all purposes, absent manifest error.

       4.2 Break Funding Payments. In the event of (a) the payment of any
principal of any Eurodollar Loan other than on the last day of an Interest
Period applicable thereto (including as a result of an Event of Default), (b)
the conversion of any Eurodollar Loan other than on the last day of the Interest
Period applicable thereto, (c) the failure to borrow, convert, continue or
prepay any Loan on the date specified in any notice delivered pursuant hereto
(regardless of whether such notice may be revoked under Section 2.14(b) and is
revoked in accordance therewith), or (d) the assignment of any Eurodollar Loan
other than on the last day of the Interest Period applicable thereto as a result
of a request by Borrower pursuant to Section 4.6, then, in any such event,
Borrower shall compensate each Lender for the loss, cost and expense
attributable to such event. In the case of a Eurodollar Loan, such loss, cost or
expense to any Lender shall be deemed to include an amount determined by such
Lender to be the excess, if any, of (i) the amount of interest which would have
accrued on the principal amount of such Eurodollar Loan had such event not
occurred, at the Eurodollar Rate that would have been applicable to such
Eurodollar Loan, for the period from the date of such event to the last day of
the then current Interest Period therefor (or, in the case of a failure to
borrow, convert or continue, for the period that would have been the Interest
Period for such Eurodollar Loan), over (ii) the amount of interest which would
accrue on such principal amount for such period at the interest rate which such
Lender would bid were it to bid, at the commencement of such period, for dollar
deposits of a comparable amount and period from other banks in the eurodollar
market. A certificate of any Lender setting forth any amount or amounts that
such Lender is entitled to receive pursuant to this Section shall be delivered
to Borrower and shall be conclusive absent manifest error. Borrower shall pay
such Lender the amount shown as due on any such certificate within 10 days after
receipt thereof.

       4.3 Illegality. Notwithstanding any other provision of this Agreement, if
any Lender shall notify Administrative Agent that the introduction of or any
change in or in the interpretation of any law or regulation makes it unlawful,
or any central bank or other Governmental Authority asserts that it is unlawful,
for such Lender or its applicable lending office to perform its obligations
hereunder to make or continue Eurodollar Borrowings or to fund or otherwise
maintain Eurodollar Loans hereunder, (i) the obligation of such Lender to make
or

                                       47
<PAGE>

continue, or to convert Base Rate Loans into, Eurodollar Loans shall be
suspended until Administrative Agent shall notify Borrower and Lenders that the
circumstances causing such suspension no longer exist and (ii) each Eurodollar
Loan of such Lender shall convert into a Base Rate Loan at the end of the then
current Interest Period for such Eurodollar Loan.

       4.4 Taxes.

              (a) Any and all payments by or on account of any obligation of
Borrower hereunder shall be made free and clear of and without deduction for any
Indemnified Taxes or Other Taxes; provided that if Borrower shall be required to
deduct any Indemnified Taxes or Other Taxes from such payments, then (i) the sum
payable shall be increased as necessary so that after making all required
deductions (including deductions applicable to additional sums payable under
this Section) Administrative Agent, any Lender or the Issuing Bank (as the case
may be) receives an amount equal to the sum it would have received had no such
deductions been made, (ii) Borrower shall make such deductions and (iii)
Borrower shall pay the full amount deducted to the relevant Governmental
Authority in accordance with applicable law.

              (b) In addition, Borrower shall pay any Other Taxes to the
relevant Governmental Authority in accordance with applicable law.

              (c) Borrower shall indemnify Administrative Agent, each Lender and
the Issuing Bank, within 10 days after written demand therefor, for the full
amount of any Indemnified Taxes or Other Taxes paid by Administrative Agent,
such Lender or the Issuing Bank, as the case may be, on or with respect to any
payment by or on account of any obligation of Borrower hereunder (including
Indemnified Taxes or Other Taxes imposed or asserted on or attributable to
amounts payable under this Section) and any penalties, interest and reasonable
expenses arising therefrom or with respect thereto, whether or not such
Indemnified Taxes or Other Taxes were correctly or legally imposed or asserted
by the relevant Governmental Authority. A certificate as to the amount of such
payment or liability delivered to Borrower by a Lender or the Issuing Bank, or
by Administrative Agent on its own behalf or on behalf of a Lender or the
Issuing Bank, shall be conclusive absent manifest error.

              (d) As soon as practicable after any payment of Indemnified Taxes
or Other Taxes by Borrower to a Governmental Authority, Borrower shall deliver
to Administrative Agent, to the extent reasonably available, the original or a
certified copy of a receipt issued by such Governmental Authority evidencing
such payment, or a copy of the return reporting such payment or other evidence
of such payment reasonably satisfactory to Administrative Agent.

              (e) Any Foreign Lender that is entitled to an exemption from or
reduction of withholding tax under the law of the jurisdiction in which Borrower
is located, or any treaty to which such jurisdiction is a party, with respect to
payments under this Agreement shall deliver to Borrower (with a copy to
Administrative Agent), at the time or times prescribed by applicable law, such
properly completed and executed documentation prescribed by applicable law or
reasonably requested by Borrower as will permit such payments to be made without
withholding or at a reduced rate; provided, however, that if any Foreign Lender
fails to deliver such documentation as necessary to permit such payments to be
made without withholding or at a

                                       48
<PAGE>

reduced rate, such Foreign Lender shall be entitled to reimbursement only to the
extent such additional amounts would have been payable notwithstanding such
failure to deliver such documentation, and such Foreign Lender shall incur no
additional liability to Borrower or any other Person as a result of such failure
to deliver such documentation.

              (f) If Borrower pays any additional amount under this Section 4.4
to a Lender and such Lender, in such Lender's sole and absolute determination,
subsequently determines that it has received or realized in connection with any
such additional amount paid by Borrower any refund or any reduction of, or
credit against, its tax liabilities in or with respect to the taxable year in
which such additional amount is paid by Borrower, such Lender shall return to
Borrower an amount equal to the net benefit, after tax, which was obtained by
Lender in such year as a consequence of such refund, reduction or credit. Such
amount shall be paid as soon as practicable after such Lender makes such
determination with respect to receipt or realization by such Lender of such
refund, reduction or credit.

              (g) Borrower shall have no obligation to make any payment pursuant
to this Section 4.4 to any Foreign Lender that is not a Registered Financial
Institution (other than QUALCOMM or any Affiliate of QUALCOMM) in respect of
Indemnified Taxes constituting withholding taxes or that are imposed by any
Governmental Authority on amounts payable to such Foreign Lender and arising
after the Closing Date in excess of such amounts as would be required to be
withheld or imposed on amounts payable to such Foreign Lender if such Foreign
Lender were a Registered Financial Institution.

       4.5 Payments Generally; Pro Rata Treatment; Sharing of Set-offs.

              (a) Borrower shall make each payment required to be made by it
hereunder (whether of principal, interest, fees or reimbursement of LC
Disbursements, or of amounts payable under Section 4.1, 4.2. or 4.4, or
otherwise) prior to 11:00 a.m., New York City time, on the date when due, in
immediately available funds, without set-off or counterclaim. Any amounts
received after such time on any date may, in the discretion of Administrative
Agent, be deemed to have been received on the next succeeding Business Day for
purposes of calculating interest thereon. All such payments shall be made to
Administrative Agent at its address referred to in Section 11.1, except payments
to be made directly to the Issuing Bank as expressly provided herein and except
that payments pursuant to Sections 4.1, 4.2, 4.4, 10.7 and 11.3 shall be made
directly to the Persons entitled thereto. Administrative Agent shall distribute
any such payments received by it for the account of any other Person to the
appropriate recipient promptly following receipt thereof. If any payment
hereunder shall be due on a day that is not a Business Day, the date for payment
shall be extended to the next succeeding Business Day, and, in the case of any
payment accruing interest, interest thereon shall be payable for the period of
such extension. All payments hereunder shall be made in Dollars.

              (b) If at any time insufficient funds are received by and
available to Administrative Agent to pay fully all amounts of principal,
unreimbursed LC Disbursements, interest and fees then due hereunder, such funds
shall be applied (i) first, towards payment of interest and fees then due
hereunder, ratably among the parties entitled thereto in accordance with the
amounts of interest and fees then due to such parties, and (ii) second, towards
payment

                                       49
<PAGE>

of principal and unreimbursed LC Disbursements then due hereunder, ratably among
the parties entitled thereto in accordance with the amounts of principal and
unreimbursed LC Disbursements then due to such parties; provided, however, that
all payments or (subject to Section 2.15) prepayments in respect of principal of
Loans at any time shall be applied first to the payment or prepayment of all
outstanding Syndicated Working Capital Loans or Term Loans, as the case may be,
second to the payment or prepayment of all outstanding Vendor Working Capital
Loans, and last to the payment or prepayment of all outstanding Capitalized
Interest Loans.

              (c) If any Lender shall, by exercising any right of set-off or
counterclaim or otherwise, obtain payment in respect of any principal of or
interest on any of its Loans or participations in LC Disbursements resulting in
such Lender receiving payment of a greater proportion of the aggregate amount of
its Loans and participations in LC Disbursements and accrued interest thereon
than the proportion received by any other Lender, then the Lender receiving such
greater proportion shall purchase (for cash at face value) participations in the
Loans and participations in LC Disbursements of other Lenders to the extent
necessary so that the benefit of all such payments shall be shared by the
Lenders ratably in accordance with the aggregate amount of principal of and
accrued interest on their respective Loans and participations in LC
Disbursements; provided that (i) if any such participations are purchased and
all or any portion of the payment giving rise thereto is recovered, such
participations shall be rescinded and the purchase price restored to the extent
of such recovery, without interest, and (ii) the provisions of this paragraph
shall not be construed to apply to any payment made by Borrower pursuant to and
in accordance with the express terms of this Agreement or any payment obtained
by a Lender as consideration for the assignment of or sale of a participation in
any of its Loans or participations in LC Disbursements to any assignee or
participant, other than to Borrower or any Subsidiary or Affiliate thereof (as
to which the provisions of this paragraph shall apply). Borrower consents to the
foregoing and agrees, to the extent it may effectively do so under applicable
law, that any Lender acquiring a participation pursuant to the foregoing
arrangements may exercise against Borrower rights of set-off and counterclaim
with respect to such participation as fully as if such Lender were a direct
creditor of Borrower in the amount of such participation.

              (d) Unless Administrative Agent shall have received notice from
Borrower prior to the date on which any payment is due to Administrative Agent
for the account of Lenders or the Issuing Bank hereunder that Borrower will not
make such payment, Administrative Agent may assume that Borrower has made such
payment on such date in accordance herewith and may, in reliance upon such
assumption, distribute to Lenders or the Issuing Bank, as the case may be, the
amount due. In such event, if Borrower has not in fact made such payment, then
each of the Lenders or the Issuing Bank, as the case may be, severally agrees to
repay to Administrative Agent forthwith on demand the amount so distributed to
such Lender or Issuing Bank with interest thereon, for each day from and
including the date such amount is distributed to it to but excluding the date of
payment to Administrative Agent, at the greater of the Federal Funds Rate and a
rate determined by Administrative Agent in accordance with banking industry
rules on interbank compensation.

              (e) If any Lender shall fail to make any payment required to be
made by it pursuant to Section 2.4(d) or (e), 2.7(b) or 4.5(d), then
Administrative Agent may, in its

                                       50
<PAGE>

discretion (notwithstanding any contrary provision hereof), apply any amounts
thereafter received by Administrative Agent for the account of such Lender to
satisfy such Lender's obligations under such Sections until all such unsatisfied
obligations are fully paid.

       4.6 Mitigation Obligations; Replacement of Lenders.

              (a) If any Lender requests compensation under Section 4.1, or if
Borrower is required to pay any additional amount to any Lender or any
Governmental Authority for the account of any Lender pursuant to Section 4.4,
then such Lender shall use reasonable efforts to designate a different lending
office for funding or booking its Loans hereunder or to assign its rights and
obligations hereunder to another of its offices, branches or affiliates, if, in
the judgment of such Lender, such designation or assignment (i) would eliminate
or reduce amounts payable pursuant to Section 4.1 or 4.4, as the case may be, in
the future and (ii) would not subject such Lender to any unreimbursed cost or
expense and would not otherwise be disadvantageous to such Lender. Borrower
hereby agrees to pay all reasonable costs and expenses incurred by any Lender in
connection with any such designation or assignment.

              (b) If any Lender requests compensation under Section 2.13(a) or
Section 4.1, or if Borrower is required to pay any additional amount to any
Lender or any Governmental Authority for the account of any Lender pursuant to
Section 4.4, or if any Lender defaults in its obligation to fund Loans
hereunder, then Borrower may, at its sole expense and effort, upon notice to
such Lender and Administrative Agent, require such Lender to assign and
delegate, without recourse (in accordance with and subject to the restrictions
contained in Section 11.4), all its interests, rights and obligations under this
Agreement to an assignee that shall assume such obligations (which assignee may
be another Lender, if a Lender accepts such assignment); provided that (i)
Borrower shall have received the prior written consent of Administrative Agent
(and, if a Syndicated Working Capital Commitment is being assigned, the Issuing
Bank), which consent shall not unreasonably be withheld, (ii) such Lender shall
have received payment of an amount equal to the outstanding principal of its
Loans and participations in LC Disbursements, accrued interest thereon, accrued
fees and all other amounts payable to it hereunder, from the assignee (to the
extent of such outstanding principal and accrued interest and fees) or Borrower
(in the case of all other amounts) and (iii) in the case of any such assignment
resulting from a claim for compensation under Section 2.13(a) or Section 4.1 or
payments required to be made pursuant to Section 4.4, such assignment will
result in a reduction in such compensation or payments. A Lender shall not be
required to make any such assignment and delegation if, prior thereto, as a
result of a waiver by such Lender or otherwise, the circumstances entitling
Borrower to require such assignment and delegation cease to apply.

                                       51
<PAGE>

SECTION 5. CONDITIONS PRECEDENT TO LOANS AND LETTERS OF CREDIT.

       5.1 Conditions Precedent to the Initial Syndicated Working Capital Loans
and the First Letter of Credit. The obligations of the Syndicated Lenders to
make the initial Syndicated Working Capital Loans and of the Issuing Bank to
issue the first Letter of Credit are subject to the satisfaction (or waiver by
Administrative Agent and each Syndicated Lender) of the following conditions:

              (a) Loan Agreement. Administrative Agent (or its counsel) shall
have received from each party hereto either (i) a counterpart of this Agreement
signed on behalf of such party or (ii) written evidence satisfactory to
Administrative Agent (which may include facsimile transmission of a signed
signature page of this Agreement) that such party has signed a counterpart of
this Agreement.

              (b) Pagares. Administrative Agent shall have received each Pagare
evidencing the initial Loans, duly executed and delivered by Borrower.

              (c) QUALCOMM Guaranty Documents. Administrative Agent (or its
counsel) shall have received from QUALCOMM either (i) a counterpart of the
QUALCOMM Guaranty, duly signed on behalf of QUALCOMM or (ii) written evidence
satisfactory to Administrative Agent (which may include facsimile transmission
of signed signature pages of the QUALCOMM Guaranty) that QUALCOMM has signed
counterparts of the QUALCOMM Guaranty.

              (d) Pegaso Guaranty Agreement. Administrative Agent (or its
counsel) shall have received a counterpart of the Pegaso Guaranty Agreement,
duly executed by the Guarantors.

              (e) Administrative Agent's Fee Letter. Administrative Agent shall
have received Administrative Agent's Fee Letter, duly executed by the Borrower
Group and QUALCOMM and accepted by Administrative Agent.

              (f) Satisfaction of QUALCOMM Conditions Precedent Letter. There
shall have been delivered to Administrative Agent the Satisfaction of QUALCOMM
Conditions Precedent Letter, in form and substance satisfactory to
Administrative Agent, duly signed by on behalf of QUALCOMM, confirming that the
conditions set forth in Section 5.2 have been satisfied (or waived by QUALCOMM
on such terms as QUALCOMM may agree).

              (g) Opinions of Counsel. (i) Administrative Agent shall have
received a favorable written opinion (addressed to Administrative Agent,
QUALCOMM and the other Lenders and dated the Closing Date) of White & Case LLP,
special New York counsel to the Borrower Group and Mijares, Angoitia, Cortes y
Fuentes, S.C., Mexican counsel to the Borrower Group, covering such matters
relating to Borrower, the other members of the Borrower Group, this Agreement or
the transactions contemplated by the Loan Documents as Administrative Agent,
QUALCOMM or the other Lenders shall reasonably request, and (ii) Administrative
Agent shall have received a favorable written opinion (addressed to
Administrative Agent and the Syndicated Lenders and dated the Closing Date) of
Cooley Godward LLP, California counsel

                                       52
<PAGE>

to QUALCOMM, covering such matters relating to QUALCOMM, this Agreement, the
QUALCOMM Guaranty or the transactions contemplated by the Loan Documents as
Administrative Agent or the Syndicated Lenders shall reasonably request and a
favorable written opinion of special New York counsel, covering such matters
related to the QUALCOMM Guaranty as Administrative Agent for the Syndicated
Lenders shall reasonably request. Borrower, each other member of the Borrower
Group and QUALCOMM hereby requests such counsel to deliver such opinions.

              (h) Incumbency Certificates. Administrative Agent and the
Syndicated Lenders shall have received signature and incumbency certificates of
the officers of QUALCOMM and of each member of the Borrower Group executing this
Agreement or the other Loan Documents to which it is or is to be a party.

              (i) Other Documents. Administrative Agent shall have received such
documents and certificates as Administrative Agent or its counsel may reasonably
request relating to the organization, existence and good standing of the members
of the Borrower Group and QUALCOMM, the authorization of the transactions
contemplated by the Loan Documents, and any other legal matters relating to the
members of the Borrower Group, QUALCOMM, this Agreement, the QUALCOMM Guaranty,
or the transactions contemplated by the Loan Documents and Administrative Agent
and each Syndicated Lender shall have received such other documents,
information, instruments, legal opinions and other materials in respect of any
aspect or consequence of the transactions contemplated hereby, all in form and
substance satisfactory to Administrative Agent and its counsel.

              (j) Officers' Certificates. Administrative Agent shall have
received certificates dated as of the Closing Date, signed by (i) the president
and chief financial officer (or the equivalent) of each member of the Borrower
Group, confirming compliance with the conditions set forth in clauses (a), (b)
and (c) of Section 5.3, and (ii) signed by a duly authorized officer of
QUALCOMM, confirming compliance with the condition set forth in clause (d) of
Section 5.3 (each such certificate and all other certificates delivered under
this Agreement to be in such Person's corporate, not individual, capacity).

              (k) Fees, Costs and Expenses. Administrative Agent (for its own
account or for the account of the other Syndicated Lenders or the Issuing Bank,
as the case may be) shall have received all fees and other amounts due and
payable on or prior to the Closing Date, including, to the extent invoiced,
reimbursement or payment of all out-of-pocket expenses required to be reimbursed
or paid by Borrower under or in connection with this Agreement (or arrangements
satisfactory to Administrative Agent, in its sole discretion, have been made for
the payment of such amounts from the proceeds of the initial Borrowing of
Working Capital Loans on the Closing Date).

              (l) Stamp Duties; Taxes; Etc. Administrative Agent and Lenders
shall have received evidence satisfactory to them that all required stamp
duties, registration fees, filing costs and other charges in connection with the
execution, delivery, filing and/or perfection of any Loan Document required to
be stamped, registered or filed have been paid in full or an appropriate
exemption therefrom shall have been obtained, except to the extent that Borrower

                                       53
<PAGE>

has provided Administrative Agent and Lenders with assurances satisfactory to
them that such duties, fees, costs and charges will be paid in full with the
proceeds of the Loans.

Administrative Agent shall notify Borrower, QUALCOMM and the other Lenders of
the Closing Date, and such notice shall be conclusive and binding.
Notwithstanding the foregoing, the obligations of the Syndicated Lenders to make
Syndicated Working Capital Loans and of the Issuing Bank to issue Letters of
Credit hereunder shall not become effective unless each of the foregoing
conditions is satisfied (or waived pursuant to Section 11.2) at or prior to 2:00
p.m., New York City time, on June 30, 1999 (and, in the event such conditions
are not so satisfied or waived, the Commitments shall terminate at such time).

       5.2 Conditions Precedent to the Initial Vendor Working Capital Loans, the
Initial Capitalized Interest Loans, and the QUALCOMM Satisfaction of Conditions
Precedent Letter. The obligations of the Vendor Working Capital Lenders to make
the initial Vendor Working Capital Loans, of the Capitalized Interest Lenders to
make the initial Capitalized Interest Loans, and of QUALCOMM to deliver the
Satisfaction of QUALCOMM Conditions Precedent Letter are subject to the
satisfaction (or waiver by QUALCOMM) of the following conditions:

              (a) Conditions Precedent to Initial Syndicated Working Capital
Facility Loans. Each of the conditions precedent set forth in Section 5.1 shall
have been satisfied (or waived by Administrative Agent and the Syndicated
Lenders).

              (b) Amendment No. 1 to Common Agreement. There shall have been
delivered to QUALCOMM an Amendment No. 1 to Common Agreement duly executed by
each member of the Borrower Group, Citibank, N.A., as Intercreditor Agent,
Citibank Mexico, S.A., Grupo Financiero Citibank, as Collateral Agent, Citibank
International Plc, as Alcatel Administrative Agent, and ABN AMRO Bank N.V., as
QUALCOMM Administrative Agent, in the form attached as Exhibit F hereto with
such changes as shall be satisfactory to QUALCOMM.

              (c) Amendment No. 1 to QUALCOMM Credit Agreement. There shall have
been delivered to QUALCOMM an Amendment No. 1 to Amended and Restated Credit
Agreement duly executed by Borrower, the lenders and ABN AMRO Bank N.V., as
QUALCOMM Administrative Agent, in the form attached as Exhibit G hereto with
such changes as shall be satisfactory to QUALCOMM.

              (d) Budget and Cash Flow Forecast. QUALCOMM shall have received
the Initial Budget and the Initial Cash Flow Forecast, each in form and
substance satisfactory to QUALCOMM.

              (e) Officers' Certificates. QUALCOMM shall have received
certificates dated as of the Closing Date, signed by the president and chief
financial officer (or the equivalent) of each member of the Borrower Group,
confirming compliance with the conditions set forth in clauses (a), (b) and (c)
of Section 5.3 (each such certificate and all other certificates delivered under
this Agreement to be in such Person's corporate, not individual, capacity).

                                       54
<PAGE>

              (f) Corporate Proceedings. All corporate, shareholder and legal
proceedings (including the cancellation and reissuance of existing treasury
shares and treasury shares relating to the Stock Options) and all instruments
and agreements in connection with the transactions contemplated by this
Agreement, the other Loan Documents and the Guaranty Trust Agreement shall be
reasonably satisfactory in form and substance to QUALCOMM, and QUALCOMM shall
have received all information and copies of all certificates, documents and
papers, including records of corporate and shareholder proceedings and
governmental approvals, if any, which QUALCOMM may have reasonably requested in
connection therewith, such documents and papers where appropriate to be
certified by proper corporate officers or governmental authorities.

              (g) Evidence of Insurance. QUALCOMM shall have received
certificates or other evidence of the existence of the insurance required by the
Common Agreement.

              (h) QUALCOMM Fee Letter. QUALCOMM shall have received the QUALCOMM
Fee Letter, duly executed and delivered by each member of the Borrower Group and
accepted by QUALCOMM, and Borrower shall have paid to QUALCOMM the Underwriting
Fee as required by the QUALCOMM Fee Letter, or arrangements satisfactory to
QUALCOMM, the Administrative Agent and the Required Lenders shall have been made
for the payment of the Underwriting Fee on the Closing Date from the proceeds of
the initial Capitalized Interest Loans.

              (i) Vendor Post-Closing Agreement. QUALCOMM shall have received a
certificate from an Authorized Officer of QUALCOMM certifying that all of the
items to be completed and delivered under the Vendor Post-Closing Agreement
shall have been completed or delivered in accordance therewith, including (i)
the resolution of the amount of the loans outstanding under the QUALCOMM Credit
Agreement and the issuance of the Pagares in connection therewith and (ii) the
execution and delivery of certain amendments to the QUALCOMM Procurement
Agreements, in form and substance satisfactory to QUALCOMM.

              (j) Business Plan. QUALCOMM shall have received a copy of the
Business Plan, certified by an Authorized Officer of the Company as having been
approved by the Board of Directors of Holdings.

              (k) Additional Matters, Documents or Information. QUALCOMM shall
have received each additional document, instrument, legal opinion or item of
information reasonably requested by QUALCOMM, including a copy of any debt
instrument, security agreement or other material contract to which Borrower or
any other member of the Borrower Group may be a party, and all corporate and
other proceedings, and all documents, instruments and other legal matters in
connection with the transactions contemplated by this Agreement and the other
Loan Documents shall be reasonably satisfactory in form and substance to
QUALCOMM, and QUALCOMM shall have received such other documents, legal opinions
and other opinions in respect of any aspect or consequence of the transactions
contemplated hereby.

              (l) System Compliance. The System shall be in compliance in all
respects with all Applicable Laws as in effect upon the Closing Date and
Administrative Agent and

                                       55
<PAGE>

QUALCOMM shall have received a certificate to such effect from an Authorized
Officer of Borrower.

              (m) Financial Statements. QUALCOMM shall have received the most
recent financial statements of the Borrower Group (on a consolidated basis),
together with a certificate from the Chief Financial Officer of Holdings,
stating that no material adverse change in the consolidated assets, liabilities,
operations or financial condition of the Borrower Group has occurred from those
set forth in the financial statements provided pursuant to this clause (m),
except as otherwise provided (which exceptions shall also be in form and
substance satisfactory to Administrative Agent) in any such certificate with
respect to such financial statements.

              (n) Authorization to Independent Accountant. The Chief Financial
Officer of Holdings shall have authorized the Independent Accountant in writing
to communicate directly with Administrative Agent and QUALCOMM (provided that
such authorization shall provide that no such communications shall occur with
the Independent Accountant unless and until Administrative Agent or QUALCOMM
has, prior thereto, notified such Chief Financial Officer of Holdings that it
intends to so communicate with the Independent Accountant, and requests that
such officer so notify such Independent Accountant) and shall have furnished
Administrative Agent and QUALCOMM with a copy of such authorization, which
authorization shall be irrevocable until all Obligations have been fully and
finally paid.

              (o) Licenses and License Fee. The Licenses shall be in full force
and effect; such Licenses shall provide all of the Permits required to operate
the System in accordance with the Business Plan, and in those geographical areas
referred to in the Business Plan; and all fees, costs and expenses payable in
connection with the granting or maintaining of such Licenses shall have been
paid in full.

              (p) Fees, Costs and Expenses. QUALCOMM shall have received all
fees and other amounts due and payable on or prior to the Closing Date,
including, to the extent invoiced, reimbursement or payment of all out-of-pocket
expenses required to be reimbursed or paid by Borrower under this Agreement or
the other Loan Documents (or arrangements satisfactory to QUALCOMM, in its sole
discretion, have been made for the payment of such amounts from the proceeds of
the initial Borrowing of Capitalized Interest Loans on the Closing Date).

              (q) Stamp Duties; Taxes; Etc. QUALCOMM shall have received
evidence satisfactory to it that all required stamp duties, registration fees,
filing costs and other charges in connection with the execution, delivery,
filing and/or perfection of any Loan Document required to be stamped, registered
or filed have been paid in full or an appropriate exemption therefrom shall have
been obtained, except to the extent that Borrower has provided QUALCOMM with
assurances satisfactory to it that such duties, fees, costs and charges will be
paid in full with the proceeds of the Loans.

              (r) Consent to Ericsson Assignments. QUALCOMM shall have received
the written consent of each member of the Borrower Group to the assignment by
QUALCOMM to Telefonaktiebolaget Im Ericsson (publ) and its affiliates of certain
rights and obligations under

                                       56
<PAGE>

various agreements by and among the members of the Borrower Group and QUALCOMM,
in form and substance satisfactory to QUALCOMM.

Notwithstanding the foregoing, the obligations of the Vendor Working Capital
Lenders to make Vendor Working Capital Loans and of the Capitalized Interest
Lenders to make Capitalized Interest Loans shall not become effective unless
each of the foregoing conditions is satisfied (or waived pursuant to Section
11.2) at or prior to 2:00 p.m., New York City time, on June 30, 1999 (and, in
the event such conditions are not so satisfied or waived, the Commitments shall
terminate at such time)

       5.3 Further Conditions Precedent to Certain Loans and Letters of Credit.

              Subject to Section 5.5, the obligations of each Lender to make a
Loan (other than a Capitalized Interest Loan or a Term Loan subject to Section
5.4) on the occasion of any Borrowing, and of the Issuing Bank to issue, amend,
renew or extend any Letter of Credit, are subject to the satisfaction of the
following conditions:

              (a) Representations and Warranties. The representations and
warranties of Borrower and each other member of the Borrower Group set forth in
this Agreement shall be true and correct on and as of the date of such Borrowing
or the date of issuance, amendment, renewal or extension of such Letter of
Credit, as applicable, or as of any earlier date as to which such representation
and warranty is expressly limited.

              (b) No Default or Event of Default. At the time of and immediately
after giving effect to such Borrowing or the issuance, amendment, renewal or
extension of such Letter of Credit, as applicable, no Default or Event of
Default shall have occurred and be continuing.

              (c) Material Adverse Effect. Since the date of the audited
financial statements pursuant to Section 5.2(m), no event, circumstance or
condition shall have occurred which constitutes a Material Adverse Effect.

              (d) No QUALCOMM Event. No QUALCOMM Event shall have occurred and
be continuing; provided that the condition set forth in this clause (d) shall
not be a condition to any Borrowing for which QUALCOMM is the sole Lender.

Each Borrowing and each issuance, amendment, renewal or extension of a Letter of
Credit shall be deemed to constitute (i) a representation and warranty on the
date thereof by Borrower and each other member of the Borrower Group as to the
matters specified in paragraphs (a), (b) and (c) of this Section and by QUALCOMM
as to the matters specified in paragraph (d) of this Section and (ii) a
confirmation by QUALCOMM of the QUALCOMM Guaranty.

       5.4 Conditions Precedent to Capitalized Interest Loans and to Certain
Term Loans. The obligation of each Capitalized Interest Lender to make a
Capitalized Interest Loan on the occasion of any Borrowing of Capitalized
Interest Loans and the obligation of each Syndicated Lender to make a Term Loan
on the occasion of any Borrowing of Term Loans for the purposes described in
Section 2.1(d)(i) are subject to the satisfaction of the following conditions:

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              (a) No Bankruptcy or Insolvency Proceedings. No Event of Default
under Section 9.1(e), (f) or (g) shall have occurred.

              (b) No Acceleration of the Loans. Lenders shall not have
accelerated the Loans pursuant to Section 9.2.

Each Borrowing and each issuance, amendment, renewal or extension of a Letter of
Credit shall be deemed to constitute a representation and warranty on the date
thereof by Borrower and each member of the Borrower Group as to the matters
specified in paragraphs (a) and (b) of this Section.

       5.5 Further Conditions Precedent to Syndicated Working Capital Loans and
Letters of Credit. If, at any time on or before the Commitment Termination Date,
(i) Borrower delivers a Borrowing Request for a Borrowing of Syndicated Working
Capital Loans approved by QUALCOMM in accordance with Section 2.6(a), a
Borrowing of Term Loans (other than Term Loans subject to Section 5.4), or a
request for the issuance, amendment, renewal or extension of a Letter of Credit
approved by QUALCOMM in accordance with Section 2.4(b), and (ii) QUALCOMM
delivers to Administrative Agent a written acknowledgement that that the
conditions set forth in clauses (a), (b) or (c) (or any combination thereof) of
Section 5.3 have not been satisfied as of the date of such Borrowing or request,
then the obligations of each Syndicated Lender to make a Syndicated Working
Capital Loan or such Term Loan, as the case may be, on the occasion of any
Borrowing under the Syndicated Working Capital Facility, and of the Issuing Bank
to issue, amend, renew or extend any Letter of Credit, are subject to the
satisfaction of the following conditions in lieu of the conditions set forth in
Section 5.3:

              (a) No QUALCOMM Event. No QUALCOMM Event shall have occurred and
be continuing.

              (b) No Bankruptcy or Insolvency Proceedings. No Event of Default
under Section 9.1(e), (f) or (g) shall have occurred.

              (c) No Acceleration of the Loans. Lenders shall not have
accelerated the Loans pursuant to Section 9.2.

Each Borrowing and each issuance, amendment, renewal or extension of a Letter of
Credit shall be deemed to constitute (i) a representation and warranty on the
date thereof by Borrower and each other member of the Borrower Group as to the
matters specified in paragraphs (b) and (c) of this Section and by QUALCOMM as
to the matters specified in paragraph (a) of this Section and (ii) a
confirmation by QUALCOMM of the QUALCOMM Guaranty.

SECTION 6. REPRESENTATIONS, WARRANTIES AND AGREEMENTS.

              The representations and warranties contained herein shall survive
the execution and delivery of this Agreement. To the extent that any schedule
referred to in this Section 6 shall need to be updated after the Closing Date in
order to permit such representation to be true and correct when made or deemed
made, Borrower or other member of the Borrower Group shall provide
Administrative Agent with such updated schedule in writing prior to the date
such

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representation is made or deemed made and shall request approval of such updated
schedule from the Required Lenders. Unless any such schedule is updated and
approved by the Required Lenders, no change to any existing schedule shall be
deemed to have been made. Borrower and each other member of the Borrower Group
signatory hereto, jointly and severally, represents and warrants to the Lenders
as follows:

       6.1 Senior Debt; Non-Vendor Financing. Except as to the collateral
securing the Vendor Facilities, the Loans rank pari passu with the Indebtedness
of Borrower under the Vendor Agreements. The Loans constitute Non-Vendor
Financing under and as defined in the Common Agreement as in effect on the date
hereof.

       6.2 Approvals. No authorizations, consents, approvals, licenses, filings
or registrations by or with any Governmental Authority, and no notarization or
other formalities in Mexico, are required to be obtained or accomplished for the
execution, delivery or performance by Borrower or any other member of the
Borrower Group of this Agreement or any other Loan Document to which it is a
party or for the validity and enforceability of this Agreement or the other Loan
Documents in accordance with their respective terms.

       6.3 Corporate Status. Each member of the Borrower Group (i) is a sociedad
anonima de capital variable duly organized, validly existing and in good
standing under the laws of Mexico, (ii) is duly authorized to do business in
Mexico and in each other jurisdiction where the character of its properties or
the nature of its activities makes such qualification necessary (except for any
authorization the absence of which does not constitute a Material Adverse
Effect) and (iii) has the requisite power and authority to (a) own or possess
all of its property and assets, (b) transact the business in which it is engaged
or proposes to be engaged (including the Business), (c) incur and guarantee
Indebtedness and create Liens, (d) execute, deliver and perform its obligations
under the Loan Documents to which it is a party and (e) do all things to be done
by it in respect of the construction, maintenance and operation of the System
and to consummate the transactions contemplated by this Agreement and the other
Loan Documents.

       6.4 Corporate Power and Authority. The execution, delivery and
performance by Borrower of this Agreement and the Pagares, the borrowing of
Loans, the use of the proceeds thereof, and the issuance of Letters of Credit
hereunder have been duly authorized by all necessary corporate and, if required,
stockholder action. Each member of the Borrower Group has taken all corporate
action necessary to authorize the execution, delivery and performance by it of
each of such Loan Documents as have been executed and delivered by such member
as of each date this representation and warranty is made or deemed made. Each
member of the Borrower Group has, or in the case of the Loan Documents other
than this Agreement by the Closing Date will have, duly executed and delivered
each of the Loan Documents to which it is a party.

       6.5 Valid and Binding Obligation. This Agreement, when executed and
delivered by the members of the Borrower Group on or before the date this
representation is made or deemed made, constitutes, or, in the case of each
other Loan Document to which it is a party, when executed and delivered by it,
will constitute, the legal, valid and binding obligation of such Person
enforceable in accordance with its terms, except as the enforceability thereof
may be

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limited by (i) applicable bankruptcy, insolvency and other similar laws
affecting creditors' rights generally and (ii) general equitable principles
regardless of whether the issue of enforceability is considered in a proceeding
in equity or at law.

       6.6 No Violation. None of the execution and delivery by any member of the
Borrower Group of this Agreement and the other Loan Documents to which it is
party, the consummation of the transactions contemplated hereby and thereby or
compliance with the terms and provisions hereof and thereof does or will (i)
contravene or violate its Charter Documents or any Applicable Law, (ii)
contravene or result in any breach or constitute any default under any order,
writ, injunction, judgment or decree of any court or other tribunal or
Governmental Authority or (iii) contravene or result in any breach or constitute
any default under, or result in or require the creation of any Lien upon any of
its revenues, properties or assets under any agreement or instrument to which it
is a party or by which it or any of its revenues, properties or assets may be
bound, except for Permitted Liens or (iv) require any permit, consent or
approval of any Person other than any such permits, consents or approvals which
have been obtained and are in full force and effect.

       6.7 Permits. All authorizations, consents and permits necessary under
Applicable Law in connection with (i) the due execution and delivery of, and
performance by each member of the Borrower Group of its obligations under each
Loan Document to which it is a party in effect or required to be in effect as of
each date this representation is made or deemed made, and (ii) the care,
custody, control, construction, development and operation of the System as
contemplated by the Business Plan which are required to be obtained on or prior
to the date this representation is made or deemed made (other than, in the case
of this clause (ii), such consents, authorizations and permits the absence of
which would not constitute a Material Adverse Effect), in each case have been
obtained by such members (hereinafter, collectively the "Permits"). Each of the
Permits has been duly obtained or made, is validly issued, is in full force and
effect, and is held in the name of the Person identified in such Permit, and is
free from any condition or requirement compliance with which would constitute a
Material Adverse Effect or which the applicable member of the Borrower Group
does not reasonably expect to be able to satisfy in a timely manner.

       6.8 Financial Statements; Financial Condition; Undisclosed Liabilities;
Etc.

              (a) Each of the financial statements of the Borrower Group
delivered pursuant to Sections 5.2(m) and 7.1(a) is true, complete and correct
in all material respects as of the date of such statements and fairly presents
the financial condition, results of operations and cash flows as of the date
thereof. Such financial statements have been prepared in accordance with GAAP on
a consistent basis except as may otherwise be noted therein.

              (b) Except as fully reflected in (i) the financial statements
referred to in Section 5.2(m), (ii) the contingent liabilities set forth on
Schedule 6.34 and (iii) the obligations set forth in the Loan Documents, there
is, as of the Closing Date, no liability or obligation with respect to any
member of the Borrower Group of any nature whatsoever (whether absolute,
accrued, contingent or otherwise and whether or not due) for the period to which
such respective financial statements relate which, either individually or in the
aggregate, constitutes a Material

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<PAGE>

Adverse Effect. As of the Closing Date, no member of the Borrower Group knows of
any reasonable basis for the assertion against any such member of any liability
or obligation of any nature whatsoever (whether absolute, accrued, contingent or
otherwise and whether or not due) for such relevant period that is not (x) fully
reflected in the financial statements referred to in Section 5.2(m), (y) set
forth in Schedule 6.34 or (z) an obligation set forth in or contemplated by the
Loan Documents, which either individually or in the aggregate, constitutes a
Material Adverse Effect.

              (c) Since the date of the last financial statements of the
Borrower Group submitted in accordance with Section 7.1(a), there has been no
material adverse change in the condition (financial or otherwise) or operations
of the Borrower Group (taken as a whole), except for the operating losses
contemplated by the most recent Business Plan submitted pursuant to Section
7.1(d).

       6.9 Litigation; Labor Disputes.

              (a) No member of the Borrower Group is in default with respect to
any order of any court, arbitrator, administrative agency or other Governmental
Authority, other than any order that is the subject of a Good Faith Contest or
other order the default under which, or the non-compliance with which, would not
result in a Material Adverse Effect. There is no injunction, writ, or
preliminary restraining order of any nature issued by an arbitrator, court or
other Governmental Authority directing that any of the transactions provided for
in any of the Loan Documents not be consummated as herein or therein provided.
There is no action, suit, investigation or proceeding (including any appeal by
any Person of a Permit) by or before any court, arbitrator, administrative
agency or other Governmental Authority pending or, to the best knowledge of each
member of the Borrower Group, threatened against or affecting any member of the
Borrower Group (or any of such party's properties, revenues or assets) which
constitutes a Material Adverse Effect.

              (b) There are no strikes, slowdowns or work stoppages by the
employees of any member of the Borrower Group or any Vendor, on-going, or, to
the best knowledge of each such member, currently threatened, which constitute a
Material Adverse Effect.

       6.10 Tax Returns and Payments.

              (a) Each member of the Borrower Group has filed all income tax and
other material tax returns required by Applicable Law to be filed by it and has
paid all Taxes and assessments payable by it which have become due other than
those subject to a Good Faith Contest. Each member of the Borrower Group has
paid or has provided reserves adequate in the reasonable judgement of the
management of Holdings and consistent with GAAP for the payment of all income or
other Taxes imposed on it by the Government of Mexico for all prior Fiscal Years
and accrued for the current Fiscal Year to the date on which this representation
is made or deemed made.

              (b) Except for those items set forth in Schedule 6.10, as of the
date hereof no withholding Taxes are or will be payable by Borrower or any other
member of the Borrower Group under Applicable Law to any Governmental Authority
in connection with any amounts

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<PAGE>

payable or to be payable by Borrower or any other such member under or in
respect of this Agreement or the other Loan Documents.

       6.11 Capitalization.

              (a) Schedule 6.11 sets forth the capitalization of Holdings and
each other member of the Borrower Group as of the date hereof, including (i)
authorized capital, (ii) the number of shares issued and outstanding and (iii)
the shareholders and number of shares and advances held by each such
shareholder. All of the issued and outstanding shares of Holdings (other than
treasury stock held by Holdings) and each other member of the Borrower Group are
duly and validly issued and non-assessable and fully paid. On the Closing Date,
neither Holdings nor any other member of the Borrower Group has outstanding (y)
any securities convertible into or exchangeable for its share capital or (z)
except as set forth in Section 6.11(b) below or the Stock Options, any rights to
subscribe for or to purchase, or any option for the purchase of, or any
agreement, arrangement or understanding providing for the issuance (contingent
or otherwise) of, or any call, commitment or claims of any character relating
to, or any rights or claims that restrict the transfer of, its share capital.

              (b) The Existing Equity, as of March 31, 1999, was
Ps.2,947,290,074. No Existing Shareholder or New Shareholder has any right
(contingent or otherwise) for the repayment or reimbursement of any of the
Existing Equity, nor any rights, contractual or otherwise, against Holdings (or
any other member of the Borrower Group) in respect of such Existing Equity,
other than rights to the shares of Capital Stock which have previously been
issued to the providers of such Existing Equity. Each of the Existing Equity
Commitments (other than any obligation of Alcatel) constitutes the valid and
enforceable obligation of the Original Mexican Shareholders to subscribe for the
Capital Stock of Holdings in the amounts and on the date or dates specified in
such Existing Equity Commitments, and each such obligation is (i) absolute and
irrevocable, and (ii) not subject (directly or indirectly) to any precondition
or condition precedent except as set forth in the Joint Venture Agreement. As of
the date this representation is made (i) there has been no amendment, supplement
or modification of such Existing Equity Commitment, and (ii) there has been no
waiver granted by Holdings under any such Existing Equity Commitment. Set forth
in Schedule 6.11 is a true and complete listing of each Original Mexican
Shareholder and the amount of each Existing Equity Commitment required to be
contributed by each such Original Mexican Shareholder as of the Closing Date.

       6.12 Subsidiaries.

              (a) Holdings is the legal and beneficial owner of 100% of the
Capital Stock of each of (i) Borrower, (ii) Pegaso PCS and (iii) Personnel Co.
(the "Applicable Shares"). As of the Closing Date, Holdings does not own any
Capital Stock in any Person other than as set forth in the preceding sentence.
There are no Liens of any kind on any of the Applicable Shares other than
Permitted Liens, nor are there any restrictions on transfers of such Applicable
Shares, nor are there any agreements of any kind relating to the voting of, or
disposition of, such Applicable Shares (except as described in the proviso to
Section 4.04(iv) of the Common Agreement as in effect on the date hereof). As of
the Closing Date, each of Borrower, Pegaso PCS and Personnel Co. has no
Subsidiaries and does not otherwise control any voting stock or any ownership

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<PAGE>

interest in any other Person. Notwithstanding the other provisions of this
Section 6.12(a), it is recognized that a single share of each of Pegaso PCS,
Personnel Co. and Borrower is not owned by Holdings, but is owned by another
member of the Borrower Group.

              (b) As of the Closing Date, the Sponsors, collectively, own 100%
of the Capital Stock of Holdings (the "Holdings Shares"). On the Closing Date,
there are no liens of any kind on the Holdings Shares other than Permitted
Liens, nor (except for such agreements or restrictions as are set forth in the
Joint Venture Agreement, in the form in existence on the Closing Date, and in
the Registration Rights Agreements, and as otherwise described in the proviso to
Section 4.04 (iv) of the Common Agreement as in effect on the date hereof) are
there any restrictions on transfer of the Holdings Shares, nor are there any
agreements of any kind relating to the voting of, or disposition of, such
Holdings Shares, other than as set forth in the Joint Venture Agreement, the
Registration Rights Agreements and the Sponsors Negative Pledge Agreement.

       6.13 Compliance with Applicable Law. Each member of the Borrower Group is
in compliance in all respects with all Applicable Law (including Environmental
Law), except to the extent that such failure to be in compliance would not
constitute a Material Adverse Effect.

       6.14 Property Rights. Each member of the Borrower Group owns, has a
license to use or otherwise has the right to use, free and clear of any pending
or threatened Liens (other than Permitted Liens), all property rights (real,
personal, mixed, tangible or intangible) including all patents, patent
applications, trademarks, permits, service marks, names, trade secrets,
proprietary information and knowledge, technology, computer programs, databases,
copyrights, licenses, franchises and formulas, or rights with respect thereto,
and has obtained assignments of all leases and other rights of whatever nature,
in each case, that are material to the care, custody, control, construction,
development, operation and maintenance of the System or the conduct of the
Business by the Borrower Group as contemplated by the Business Plan, without any
conflict with the rights of others as of the date such property rights are
necessary to operate and maintain the System and the Business.

       6.15 Single-Purpose. The Borrower Group (taken as a whole) has not
engaged in any business other than the care, custody, control, development,
construction, operation, maintenance and financing of the System and the conduct
of the Business; provided that it is recognized that Personnel Co. is authorized
to provide human resource and similar services, and may provide such services,
to unrelated third parties to the extent consistent with the Business Plan.

       6.16 Fees and Enforcement.

              (a) Except for the fees and Taxes set forth on Schedule 6.16 that
have been paid in full or will have been paid in full by the date of any
Borrowing requested hereunder or with the proceeds of any Loan made pursuant to
such Borrowing, no fees or Taxes are required to be paid for the legality,
validity or enforceability of the Loan Documents.

              (b) This Agreement and each of such Loan Documents executed and
delivered as of the date this representation is made or deemed made are each in
proper legal form under

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(i) the Applicable Law of Mexico and (ii) the respective governing laws
specified in such Loan Documents, for the enforcement thereof in such
jurisdiction.

       6.17 Foreign Exchange Approvals. All requisite foreign exchange control
approvals and other similar authorizations, if any, required under Applicable
Law to be issued by any Governmental Authority to assure (i) the ability of each
member of the Borrower Group to receive, and the ability of any other party to
make to the Borrower Group, any and all payments in the currency or currencies
contemplated by the Loan Documents, (ii) the ability of each member of the
Borrower Group to maintain Dollar accounts outside Mexico and to transfer
amounts from and into Mexico as necessary to meet its obligations under the Loan
Documents, in accordance with their respective terms, and (iii) the ability of
each member of the Borrower Group to use Dollars as necessary to perform all of
its obligations under the Loan Documents, in accordance with their respective
terms, including the making of all payments required by or contemplated in the
Loan Documents, have been duly and validly obtained and are in full force and
effect. Other than those restrictions or requirements for which appropriate
waivers, authorizations and/or approvals have been received, there are no
further restrictions or requirements under Applicable Law that limit the
availability or transfer of foreign currency, or the conversion to a foreign
currency, for the purpose of (a) the performance by each member of the Borrower
Group of its obligations under this Agreement or any other Loan Document to
which it is a party or (b) repatriating the proceeds of enforcement of the
Obligations.

       6.18 Liens. Except for Permitted Liens, there are no Liens securing any
Indebtedness or other obligations of any Person covering any present or future
revenues, properties or assets or share capital of any member of the Borrower
Group other than on the Capital Stock of Holdings. No Liens securing any
Indebtedness or other obligations of any Person cover the Capital Stock of
Holdings held by any Sponsor except as permitted under the Sponsor Negative
Pledge Agreement and as may exist under that Irrevocable Guaranty Trust
Agreement dated as of May 27, 1999 by and among Alejandro Burillo Azcarraga,
Leap, QUALCOMM, Banco Invex, Institucion de Banca Multiple, Grupo Financiero
Invex, Trust Department and Holdings. No member of the Borrower Group has
outstanding any Lien or obligation to create any Lien on or with respect to any
of its properties, revenues or assets, other than Permitted Liens.

       6.19 Title. Except for Permitted Liens, Borrower and its Subsidiaries own
and have good and marketable title in fee simple absolute to, or valid leasehold
interests in, all of their respective properties and assets, real and personal,
including the properties and assets and leasehold interests reflected in the
Financial Statements (other than any properties or assets disposed of in the
ordinary course of business or otherwise in compliance with the Common
Agreement) and all assets and properties acquired by Borrower and its
Subsidiaries since the date of the Financial Statements referred to in Section
5.2(m) (except those disposed of in the ordinary course of business or otherwise
in compliance with the Common Agreement).

       6.20 Loan Documents. Administrative Agent and Lenders have received a
true, complete and correct copy of each of the Loan Documents in effect as of
the date this representation is made or deemed made. Each such Loan Document is
in full force and effect and has not been amended, modified or terminated,
except as previously disclosed in writing to Administrative Agent and in
accordance with the terms hereof and thereof.

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<PAGE>

       6.21 Certain Ancillary Services. Except where the failure to obtain the
services referred to below would not constitute a Material Adverse Effect, all
utility services, facilities and other services that can reasonably be expected
to be necessary for the care, custody, control, construction, operation and
maintenance of the System, are, or will be when needed, available to the
Borrower Group to the extent necessary or desirable.

       6.22 Environmental Matters.

              (a) Except as set forth on Schedule 6.22 (i) no member of the
Borrower Group is now in violation of any Environmental Law which violation
constitutes a Material Adverse Effect, (ii) no member of the Borrower Group, nor
to the best knowledge of any member of the Borrower Group, any third party, has
used, released, discharged, generated, manufactured, produced, stored, or
disposed of in, on, under, or about the System or any real property owned or
leased by an member of the Borrower Group or transported thereto or therefrom
any Hazardous Material in a manner that could reasonably be expected to subject
any member of the Borrower Group to any Environmental Claim that would
constitute a Material Adverse Effect, or subject QUALCOMM, Administrative Agent
or any Lender to any liability or regulation under any Environmental Law or to
any Environmental Claim, and (iii) to the best knowledge of each member of the
Borrower Group, there are no Hazardous Materials used, stored, or present at, on
or near the System or any real property owned or leased by any member of the
Borrower Group in violation of Applicable Law or which would constitute a
Material Adverse Effect.

              (b) Except as set forth in Schedule 6.22, there is no proceeding
and, to the best knowledge of each member of the Borrower Group, no
investigation or inquiry by any Governmental Authority or any other Person with
respect to the presence or release of Hazardous Materials in, on, from or to the
System or any real property owned or leased by any member of the Borrower Group
which would constitute a Material Adverse Effect, nor, as of the Closing Date,
has any member of the Borrower Group received notice of any pending or
threatened Environmental Claim, and, as of the Closing Date, no member of the
Borrower Group knows of any basis for any Environmental Claim.

       6.23 Investment Company Act. Borrower is not an "investment company" or a
company "controlled" by an "investment company," within the meaning of the
Investment Company Act of 1940.

       6.24 True and Complete Disclosure. (a) All factual information (taken as
a whole), including the Business Plan, furnished by or on behalf of any member
of the Borrower Group in writing to or for the benefit of any particular Lender
(referred to herein as a "Relevant Lender," which term includes Administrative
Agent) was true and accurate in all material respects (i) in the case of the
Business Plan, as of the Closing Date, and (ii) with respect to all other
factual information (including updates of the Business Plan), on the dates as of
which such information was furnished, and was not incomplete by omitting to
state any material fact necessary to make such information (taken as a whole)
not misleading in any material respect at such time in light of the
circumstances under which such information was furnished; provided, however,
that, except as otherwise expressly set forth in this Agreement, the sole
representation of each member of the Borrower Group with respect to projections,
estimates or other expressions of

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<PAGE>

view as to future circumstances shall be that such projections, estimates or
other expressions of view as to future circumstances (i) were prepared in good
faith, (ii) fairly present in all material respects the Borrower Group's
expectations as to the matters covered thereby as of their respective date(s) of
delivery (it being understood that assumptions utilized therein were believed by
the Borrower Group in good faith to be reasonable in light of conditions
existing at the time of preparation thereof, but that actual results may vary
from the projected results contained therein), (iii) were based on reasonable
assumptions as to all factual and legal matters material to the estimates
therein (including interest rates and costs) as of their respective date(s) of
delivery, and (iv) were in all material respects consistent with the provisions
of the Loan Documents as of their respective date(s) of delivery. There are no
statements, assumptions or conclusions in the Business Plan, as of the date of
delivery thereof, which are based upon or include information known as of such
delivery date to any member of the Borrower Group to be misleading or which fail
to take into account material information regarding the matters reported
therein. As of the Closing Date there are in existence no documents, agreements
or other information which have not been disclosed to the Relevant Lender in
writing which are material in the context of the Loan Documents or which have
the effect of varying any of the Loan Documents.

       6.25 No Additional Fees. Other than as set forth in Schedule 6.25, as of
the Closing Date, no member of the Borrower Group has paid nor become obligated
to pay any fee or commission to any broker, finder or intermediary for or on
account of arranging the financing of the transactions contemplated by the Loan
Documents.

       6.26 Use of Proceeds. The proceeds of the Syndicated Working Capital
Loans, the Term Loans, the Vendor Working Capital Loans and the Capitalized
Interest Loans shall be used solely as described in Sections 2.1(b), 2.1(d),
2.2(b) and 2.3(b), respectively. No part of the proceeds of any Loan or Letter
of Credit will be used for the purpose, whether immediate, incidental or
ultimate, of buying or carrying any "margin stock" (as defined in Regulation U)
or to extend credit to others for such purpose. No part of the proceeds of any
Loan or Letter of Credit will be used, whether directly or indirectly, and
whether immediately, incidentally or ultimately, for any purpose which entails a
violation of, or which is inconsistent with Regulations T, U or X promulgated by
the Board of Governors of the Federal Reserve System (12 C.F.R. Sections 220,
221 and 224, respectively).

       6.27 Insurance. All insurance policies required to be maintained pursuant
to the terms of the Common Agreement are in full force and effect, and all
premiums due and payable have been paid.

       6.28 Private Activities; Immunity. The transactions contemplated by the
Loan Documents constitute private commercial activities (rather than
governmental or public activities). To the extent that any member of the
Borrower Group or any of its properties or assets has or hereafter may acquire
any rights to immunity from setoff, legal proceedings, attachment prior to
judgment, other attachment or execution of judgment on any grounds of
sovereignty or otherwise (whether under the laws of Mexico or any other
jurisdiction), to the extent permitted by Applicable Law such Person hereby
irrevocably waives such right to immunity and its properties and assets in
respect of its obligations arising under or relating to this Agreement or any
other Loan Document.

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<PAGE>

       6.29 No Subordination. The obligations of each Guarantor under the
Guaranties and Borrower under this Agreement or under any other contracts or
instruments executed by Guarantors or Borrower in connection therewith and
herewith (i) are not subordinated in right of payment to any other obligation of
Borrower or such Guarantors and (ii) will at all times rank prior to or pari
passu in right of payment with all present and future unsecured Indebtedness of
any Guarantor or Borrower, as applicable, except in either case, to the extent
provided by law or as may otherwise be expressly provided in the Loan Documents.

       6.30 Licenses. The Licenses are in full force and effect and Borrower
holds legal, valid, binding and enforceable title to the Licenses free and clear
of any Liens other than Permitted Liens and free and clear of any conditions
other than those set forth in the Licenses. The Licenses are sufficient
(together with other authorizations, consents and permits which have been
received, or are reasonably anticipated to be received on a timely basis, by one
or more members of the Borrower Group) to grant to Borrower the legal power and
authority to operate and maintain the System and conduct the Business in
accordance with the Business Plan. Other than as may be set forth in Schedule
6.30, there has been no notice given by any Governmental Authority that brings
into question the validity or effectiveness of the Licenses, nor is there any
litigation (or to the best knowledge of each member of the Borrower Group,
threatened litigation) relating in any way to the Licenses which, in either
case, if decided adversely, would have the effect of causing an Event of Default
under Section 9.1(l).

       6.31 Operator Agreements. Subject to Section 5.17 of the Common
Agreement, the GTE Operator Agreement and the Operator Agreement are in full
force and effect.

       6.32 Employee Benefit Plans; Employment Matters.

              (a) Employee Benefits.

                     (i) Each employee benefit plan of any member of the
Borrower Group, if any, has been maintained, operated and administered in
accordance with its terms and with Applicable Law, and all notices, filing and
disclosures required by such terms or law have been timely made, except when the
failure to maintain, operate, or administer, or to notify, file or disclose,
would not have a Material Adverse Effect. No proceeding with respect to the
administration or the investment of the assets of any employee benefit plan
(other than routine claims for benefits) that would have a Material Adverse
Effect or create Liens (other than Permitted Liens) is pending or threatened.

                     (ii) All obligations of the Borrower Group for payments
with respect to any and all mandatory and additional employee benefit plans
including all Instituto Mexicano del Seguro Social (Mexican Social Security
Institute), Instituto del Fondo Nacional para la Vivienda de los Trabajadores
(National Worker's Housing Fund Institute), and accrued payroll taxes payments
for their respective employees have been timely paid and properly reported in
the financial statements required to be delivered under Section 7.1(a) in
accordance with GAAP except where the failure to make such payments would not
have a Material Adverse Effect or result in any Lien (other than Permitted
Liens).

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                     (iii) As of the Closing Date, no member of the Borrower
Group has any liability for retiree benefits.

              (b) Employment Practices. Each member of the Borrower Group has
complied in all material respects with all Applicable Laws with respect to
employment practices, including applicable health and safety regulations, and
there is no investigation, charge or complaint alleging any material violation
of such laws, rules or regulations against any member of the Borrower Group
pending or threatened, or before any federal or local labor board, tribunal or
Comision Nacional del Sistema de Ahorro para el Retiro (National Savings and
Retirement System Commission).

              (c) Labor Matters. There is no labor strike, request for
representation, slowdown or stoppage actually pending or, to the knowledge of
any member of the Borrower Group, threatened against or affecting it which would
have a Material Adverse Effect.

              (d) Filings. Each member of the Borrower Group has filed all
forms, reports, statements, provider agreements benefit plan descriptions, payor
agreements, beneficiary materials and other documents (including those related
to employee benefit plans) required to be filed by it with any Governmental
Authority, including state and federal insurance and health regulatory
authorities except where the failure to file would have a Material Adverse
Effect or result in a Lien.

       6.33 Year 2000. Each member of the Borrower Group reasonably believes
that all computer applications that are material to its business and operations
will on a timely basis be able to perform properly date-sensitive functions for
all dates before, on and after January 1, 2000, except to the extent that a
failure to do so is would not have Material Adverse Effect (that is, be "Year
2000 compliant").

       6.34 Indebtedness. As of the date hereof and as of the Closing Date,
Schedule 6.34 is a complete and correct list of all Indebtedness, credit
agreements, indentures, purchase agreements, guaranties, capital leases and
other investments, agreements and arrangements presently in effect providing for
or relating to extensions of credit (including agreements and arrangements for
the issuance of letters of credit or for acceptance financing, but not including
nondelinquent trade credit providing for payment within ninety (90) days of
invoice) involving $1,000,000 or more in respect of which any member of the
Borrower Group is in any manner directly or contingently obligated. The maximum
principal or face amounts of the credits in question, which are outstanding and
which can be outstanding, are correctly stated, and all Liens of any nature
given or agreed to be given as security therefor are correctly described or
indicated in such Schedule.

       6.35 Budget. As of the date hereof, the Initial Budget is consistent with
the Business Plan.

SECTION 7. AFFIRMATIVE COVENANTS.

              Each member of the Borrower Group covenants and agrees, jointly
and severally, that until the Commitments have been terminated and all
Obligations are paid in full:

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       7.1 Information Covenants. Borrower shall furnish to Administrative Agent
and QUALCOMM:

              (a) Financial Statements.

                     (i) Annual Financial Statements Of The Borrower Group. As
soon as available, but in any event within 120 days after the close of each
Fiscal Year, a consolidated balance sheet of the Borrower Group as at the end of
such Fiscal Year with the related audited statements of income and retained
earnings and statements of cash flows for such Fiscal Year, in each case setting
forth comparative combined figures for the prior Fiscal Year and certified by
the Independent Accountant, which certification shall state that all such
statements are in agreement with the Borrower Group's books of account and are
prepared in accordance with GAAP on a consistent basis and reconciled to U.S.
GAAP.

                     (ii) Quarterly Financial Statements. As soon as available
and in any event within 45 days after the close of each of the first three
quarterly accounting periods in each Fiscal Year, the combined balance sheet of
the Borrower Group, as at the end of such quarterly period and the related
unaudited combined statements of income and of cash flows for such quarterly
period and for the portion of the Fiscal Year ended at the end of such quarterly
period, and in each case setting forth comparative combined figures for the
related quarterly period in the prior Fiscal Year and the figures for such
portion of the Fiscal Year ended at the end of such quarterly period, all of
which shall be certified by the chief financial officer or controller of
Holdings as fairly presenting the financial condition and results of operations
of the Borrower Group and as having been prepared in accordance with GAAP on a
consistent basis and reconciled to U.S. GAAP, subject to changes resulting from
audit and normal year-end audit adjustments.

              (b) Independent Accountant's Report. At the time of delivery of
the financial statements provided for in Section 7.1(a), a report of the
Independent Accountant (x) stating that in the course of its regular audit
conducted in accordance with GAAP of the financial statements of the Borrower
Group as described under this Section 7.1, the Independent Accountant obtained
no knowledge of a Default or Event of Default which has occurred, or if in the
opinion of the Independent Accountant such Default or Event of Default has
occurred, a statement as to the nature thereof and (y) certifying that, based on
such financial statements and its review of the terms hereof, the Borrower Group
was in compliance with Sections 5.02(a), 6.03, 6.04, 6.06, 6.09 and 6.10 of the
Common Agreement as of the end of the relevant Fiscal Year or, as the case may
be, detailing any non-compliance therewith.

              (c) Management Letters. Promptly after receipt thereof, by any
member of the Borrower Group, a copy of any management letter or other similar
communication received by any such member from the Independent Accountant in
relation to the financial, accounting and other systems, management or accounts
of any such member.

              (d) Business Plan. Not less frequently than annually, commencing
not later than December 15, 1999, an updated Business Plan in the form approved
by the Board of Directors of Holdings, which shall be based on (i) facts and
circumstances existing as of the date

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of submission, and (ii) with respect to future events and performance,
assumptions believed by the Borrower Group to be reasonable under the
circumstances as of such date of submission. Each updated Business Plan shall
contain, at a minimum, (i) a description of the Borrower Group's plans in
connection with the roll-out of the System, (ii) the number of subscribers to
the System as of the date of such updated Business Plan for each year thereafter
through the final maturity date of any Senior Indebtedness then outstanding,
(iii) a pro-forma income statement (including EBITDA) for the year in which the
up-dated Business Plan is submitted and each year thereafter through the final
maturity date of any Senior Indebtedness then outstanding, (iv) a projected debt
service coverage table for the then current year and each year thereafter
through the final maturity date of any Senior Indebtedness then outstanding, (v)
at least the same amount of information as was contained in the original
Business Plan, and (vi) a description of all major assumptions which were used
in connection with the preparation of such up-dated Business Plan. During the
30-day period following the submission of the updated Business Plan, the
Borrower Group will make available the Chief Financial Officer of Holdings and
any other officer of the Borrower Group reasonably requested by any
Administrative Agent to report on, and answer questions with respect to, such
updated Business Plan at such times as such Administrative Agent(s) may
reasonably request.

              (e) Cash Flow Forecast. On or prior to the first day of each
fiscal quarter, an updated Cash Flow Forecast, certified by the Chief Financial
Officer of Holdings that the same has been prepared in good faith and is based
upon reasonable assumptions.

              (f) Officers' Certificates. At the time of the delivery of the
financial statements provided for in Section 7.1(a), a certificate of an
Authorized Officer of each member of the Borrower Group to the effect that,
based upon such Authorized Officer's review of the terms hereof and the other
Loan Documents and the financial condition of each member of the Borrower Group
during the relevant accounting period and, to the best of such officer's
knowledge, (i) such member of the Borrower Group is in compliance with all of
its obligations under the terms of the Loan Documents the non-performance of
which would constitute a Material Adverse Effect, and (ii) no Default or Event
of Default has occurred and is continuing, or, if any Default or Event of
Default has occurred and is continuing, specifying the nature and extent thereof
and what action the Borrower Group is taking or proposes to take in response
thereto.

              (g) Notice of Certain Occurrences, Etc. (i) Promptly, but in all
cases within five Business Days after any Responsible Officer of any member of
the Borrower Group obtains knowledge thereof, written notice of any event which
constitutes a Default or Event of Default, specifying the nature of such Default
or Event of Default and any steps the Borrower Group is taking and proposes to
take to remedy the same and (ii) promptly, and in any event within five Business
Days, after any senior officer of any member of the Borrower Group obtains
knowledge thereof, notice of:

                     (i) any litigation, arbitration or governmental proceeding
pending or threatened in writing (1) against any member of the Borrower Group
(x) involving a claim or claims in excess of $1,000,000 individually or
$2,000,000 in the aggregate or (y) which, if

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decided adversely to such member or members, would constitute a Material Adverse
Effect, or (2) with respect to any Loan Document;

                     (ii) any proceeding or legislation by any Governmental
Authority to acquire compulsorily all or any portion of the business or assets
of any member of the Borrower Group (whether or not constituting an "Event of
Default" hereunder);

                     (iii) any change in the Authorized Officers of Borrower or
other member of the Borrower Group, giving certified specimen signatures of any
new officer so appointed and, if requested by an Administrative Agent,
reasonably satisfactory evidence of the authority of such new officer;

                     (iv) any notice relating to a material dispute received or
initiated by any member of the Borrower Group under any of the Licenses;

                     (v) any Lien (other than a Permitted Lien) being granted or
established or becoming enforceable over any assets of the Borrower Group;

                     (vi) any one or more events, conditions or circumstances
(including any event of force majeure or any on going or threatened strike,
slowdown or work stoppage by the employees of any member of the Borrower Group
or of any Vendor) known by a senior officer of any member of the Borrower Group
to exist or to have occurred or in the reasonable judgment of such officer are
expected or imminent that, in any case, constitute a Material Adverse Effect;

                     (vii) any notice received by any member of the Borrower
Group purporting to cancel or materially alter in an adverse manner the terms of
any insurance contract (including any notification of any premium increase in
excess of 20% over the prior premium payable for such insurance contract);

                     (viii) any (i) fact, circumstance, condition or occurrence
that results in noncompliance with any Environmental Law and constitutes a
Material Adverse Effect and (ii) pending or, to the best knowledge of any member
of the Borrower Group, threatened (in writing) Environmental Claim against any
such member which would result in a Material Adverse Effect; and

                     (ix) any change in the capitalization of Holdings or any
other member of the Borrower Group to the extent that, as a result of such
change, any of the representations and warranties made in Section 6.11(a) as of
the Closing Date would not be true if made as of any subsequent date.

              (h) Governmental Reports. Within 30 days after the date on which
any such report is submitted, a copy of any material report required to be filed
by any member of the Borrower Group with any Governmental Authority with respect
to an environmental aspect of the System.

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              (i) Information with Respect to Amendment, Waiver or Consent. In
connection with any proposed amendment, waiver or consent in respect of any of
the provisions hereof or of any other Loan Document for which the consent or
approval of Administrative Agent, QUALCOMM, the Issuing Bank or any Lender is
required, sufficient information (including a narrative description of the
effect thereof), sufficiently far in advance of the date a decision is required,
to enable Administrative Agent, QUALCOMM, the Issuing Bank or Lenders to make an
informed and considered decision with respect thereto; provided that such
information shall be required to be delivered only to those parties
(Administrative Agent, QUALCOMM, the Issuing Bank and Lenders, as applicable)
the consent or approval of which is required.

              (j) Notice of Default, Litigation or Environmental Claim.
Promptly, and in any event within three Business Days after any Responsible
Officer of any member of the Borrower Group obtains knowledge thereof, notice of
(x) the termination of either of the Alcatel Procurement Agreement or the
QUALCOMM Procurement Agreements and (y) any change in the ownership of Holdings
of which it has knowledge and (z) any Environmental Claim against Borrower or
any other member of the Borrower Group. Each notice pursuant to this subsection
shall specify the nature thereof, the period of existence thereof and what
action, if any, the Borrower Group proposes to take with respect thereto.

              (k) Year 2000 Compliance. Promptly in the event the Borrower Group
discovers or determines that any computer application (including those of its
material suppliers and vendors) that is material to the Business will not be
Year 2000 compliant (as defined in Section 6.33) on a timely basis.

              (l) Other Information. Promptly upon transmission thereof, (i)
copies of any filings and registrations with, and reports to, the United States
Securities and Exchange Commission or any comparable Governmental Authority by
Holdings, (ii) copies of all financial statements, proxy statements, notices and
reports as Holdings shall send generally to public shareholders and (iii) with
reasonable promptness, such other information or documents (financial or
otherwise) as Administrative Agent or any Lender may reasonably request from
time to time (provided that such information shall be required to be delivered
only to Administrative Agent or the Lenders requesting such information).

              (m) Books and Records. Each member of the Borrower Group shall
keep proper books of record and account in which full, true and correct entries
are made of all dealings and transactions in relation to its business and
activities and shall permit (at such member's own expense, except for travel
costs) any representatives designated by the Administrative Agent, QUALCOMM or
any other Lender, upon reasonable prior notice, to visit and inspect its
properties, to examine and make extracts from its books and records, and to
discuss its affairs, finances and condition with its officers and independent
accountants, all at such reasonable times and as often as reasonably requested.

       7.2 Permits; Enforcement of Transaction Documents. The Borrower Group
will:

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              (a) take, or cause to be taken, all actions necessary to obtain in
a timely manner all authorizations, consents and permits which are the
responsibility of the Borrower Group, and will promptly make, or cause to be
made, all required filings with governmental or similar authorities in Mexico,
in each case, to preserve, renew and keep in full force and effect its material
rights, franchises, licenses, contracts, powers, privileges and patents
necessary for the performance of its obligations under the Loan Documents;

              (b) obtain and maintain, or cause to be obtained and maintained in
full force and effect (or where appropriate, renew) all consents, authorizations
and permits necessary for the conversion to Dollars of all Peso amounts which
are required to be converted by the Loan Documents and for the remittance to the
United States in Dollars of any amounts paid or payable in Dollars, as
applicable, to Administrative Agent, the Issuing Bank or any Lender in
connection with any other Loan Document or the transactions contemplated hereby
or thereby;

       7.3 Proper Legal Form. Each member of the Borrower Group shall take all
such further action within its control required to ensure that each of the Loan
Documents is in proper legal form, under the laws of Mexico and under the
respective governing laws specified in such Loan Documents, for the enforcement
thereof in such jurisdictions without any further action on the part of
Administrative Agent or any other Person.

       7.4 Translations. If any Loan Document, notice, certificate, instrument,
communication or other document required to be delivered to any Person pursuant
to this Agreement is not originally executed, delivered or given in English
(regardless of whether such requirement arises before or after the Closing
Date), the Borrower Group shall, upon written request of Administrative Agent or
QUALCOMM or any other Lender entitled to receive the same, concurrently with the
delivery of such Loan Document, notice, certificate, instrument or other
document, additionally and at Borrower's expense, provide to such Person a
certified English translation thereof. Subject to Section 11.16, if any Loan
Document, notice, certificate, instrument, communication or other document
required to be delivered to any Person pursuant to this Agreement is not
originally delivered in Spanish, and a Spanish translation thereof shall be
necessary or appropriate, in the reasonable judgment of Administrative Agent or
any Lender, under Mexican law or in connection with the administration or
enforcement of any of the Loan Documents, then Administrative Agent or any
Lender may, and upon the request of Administrative Agent or any Lender, Borrower
shall, obtain a certified Spanish translation thereof at Borrower's expense for
the benefit of Administrative Agent and Lenders.

       7.5 New Subsidiaries. In the event that Holdings or any other member of
the Borrower Group (or any New Subsidiary, as defined below) forms, purchases or
acquires (whether for consideration or otherwise) any Subsidiary other than
those Persons which are, as of the Closing Date, members of the Borrower Group
(a "New Subsidiary"), then the member of the Borrower Group which has so formed,
acquired or purchased such New Subsidiary shall (at its own expense), within 30
days of the date of such formation, acquisition or purchase, deliver to
Administrative Agent and QUALCOMM the following documents (which shall be in
form and substance reasonably acceptable to Administrative Agent): (A) a
guaranty by the New Subsidiary of all of the Obligations, substantially in the
form of the Pegaso Guaranty Agreement delivered by the Guarantors on the Closing
Date, (B) an instrument in writing, executed and

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delivered by the New Subsidiary, pursuant to which such New Subsidiary becomes a
member of the Borrower Group and subject to this Agreement and (to the extent
appropriate) the other Loan Documents, and (C) opinions of counsel, reasonably
acceptable to Administrative Agent, as to the validity and enforceability of
such agreements.

       7.6 Consents, Approvals. The Borrower Group shall, from time to time,
obtain all material governmental and third party consents, approvals and Permits
required to be obtained in accordance with the Loan Documents and such consents,
approvals and Permits shall be kept in effect so long as required.

       7.7 Usury Permit. Borrower shall obtain and deliver to QUALCOMM, no later
than thirty (30) days after the Closing Date, evidence (the "Usury Permit")
satisfactory to QUALCOMM that the transactions contemplated by this Agreement
and the other Loan Documents comply with applicable usury law and that a
qualification permit or exemption from the California Corporations Commissioner
has been obtained.

SECTION 8. NEGATIVE COVENANTS.

              Each member of the Borrower Group covenants and agrees, jointly
and severally, that until the Commitments have been terminated and all
Obligations are paid in full:

       8.1 No Prepayments. The Borrower shall not (a) prepay any principal of
High Yield Debt (as defined in the Common Agreement), (b) pay or prepay any
principal or interest in respect of Subordinated Loans (as defined in the Common
Agreement) or (c) prepay any other Indebtedness except (x) principal and
interest in respect of Indebtedness under Section 6.04(c), (g), (j) and (m) of
the Common Agreement in an amount not to exceed $5,000,000, in the aggregate,
(y) Senior Indebtedness as required under the Common Agreement or (z)
Indebtedness under this Agreement and the Pagares in accordance with this
Agreement.

       8.2 Fundamental Changes. No member of the Borrower Group will merge into
or consolidate with any other Person, or permit any other Person to merge into
or consolidate with it, or sell, transfer, lease or otherwise dispose of (in one
transaction or in a series of transactions) all or substantially all of its
assets, or all or substantially all of the stock of any of its Subsidiaries (in
each case, whether now owned or hereafter acquired), or liquidate or dissolve,
except that, if at the time thereof and immediately after giving effect thereto
no Default or Event of Default shall have occurred and be continuing, (i) any
Person may merge into such member of the Borrower Group in a transaction in
which such member is the surviving entity, and (ii) any member may sell,
transfer, lease or otherwise dispose of its assets to another member of the
Borrower Group. No member of the Borrower Group will establish, create or
acquire any Subsidiary except wholly-owned Subsidiaries that are established,
created or acquired in accordance with the terms and conditions of Section 7.5.
The Borrower Group will not engage to any material extent in any business other
than the Business as contemplated in the Business Plan and businesses reasonably
incidental thereto.

       8.3 Immunity. In any proceedings in Mexico or elsewhere in connection
with any of the Loan Documents to which a member of the Borrower Group is a
party, no such member shall

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claim for itself or any of its assets immunity from suit, execution, attachment
or other legal process.

       8.4 Asset Sales. No member of the Borrower Group shall sell, assign,
pledge or otherwise transfer or dispose of any Licenses or any other portion of
its assets if such sale, assignment, pledge or other transfer or disposal would
result in any Event of Default under, or any required prepayment of Senior
Indebtedness pursuant to, the Common Agreement.

       8.5 Restricted Payments. No member of the Borrower Group will declare or
pay any dividends (other than dividends payable solely in Capital Stock of such
Person) or return any capital to, its stockholders or authorize or make any
other distribution, payment or delivery of property or cash to its stockholders
as such, or redeem, retire, purchase, or otherwise acquire, directly or
indirectly, for consideration, any shares of any class of its Capital Stock now
or hereafter outstanding (or any warrants for or options or stock appreciation
rights in respect of any of such shares), or set aside any funds for any of the
foregoing purposes, or permit any of its Subsidiaries to purchase or otherwise
acquire for consideration any shares of any class of the Capital Stock of any
other member of the Borrower Group or any other Subsidiary, as the case may be,
now or hereafter outstanding (or any options or warrants or stock appreciation
rights issued by such Person with respect to its capital stock) (all of the
foregoing "Dividends"), except that (A) any Subsidiary of the Borrower, Pegaso
PCS or Personnel Co. may pay Dividends to the Borrower, Pegaso PCS or Personnel
Co., as applicable, (B) each of the Borrower, Pegaso PCS or Personnel Co. may
pay cash Dividends to Holdings to the extent, but only to the extent, that
Holdings needs all of such Dividends within five Business Days following the
payment of such Dividend to pay normal, reasonable and customary administrative
costs incurred in the ordinary course of its business.

SECTION 9. EVENTS OF DEFAULT.

       9.1 Events of Default. The occurrence of any one or more of the following
events shall constitute an Event of Default:

              (a) Payments. A failure by one or more members of the Borrower
Group to pay (whether by scheduled maturity, required prepayment, by
acceleration or otherwise) the following amounts:

                     (i) any principal of any Loan when due;

                     (ii) any interest on any Loan, any other amounts owing
       hereunder or under any other Loan Document or any other amounts
       constituting Obligations within three (3) Business Days after such
       interest or other amount first becomes due; or

                     (iii) any required deposits to the cash collateral account
       described in Section 2.4(j).

              (b) Representations. Other than with respect to the
Counter-Guaranties, any representation or warranty made by any Sponsor,
Guarantor, or any member of the Borrower Group herein or in any other Loan
Document or any representation, warranty or statement in any

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certificate, financial statement or other document furnished to any
Administrative Agent or any Lender by or on behalf of the Borrower Group
hereunder or under any other Loan Document shall prove to have been false or
misleading in any material respect as of the time made, deemed made, confirmed
or furnished.

              (c) Covenants.

                     (i) A member of the Borrower Group shall default in the due
performance or observance by it of any term, covenant or agreement contained in
Section 7.5 or Section 8.

                     (ii) Any member of the Borrower Group shall default in the
due performance or observance by it of any term, covenant or agreement contained
herein or in any other Loan Document (except as otherwise provided in Section
9.1(a) and clause (i) of this Section 9.1(c)), and such default shall continue
unremedied for a period of 30 days after the date on which written notice
thereof shall have been received by a member of the Borrower Group from
Administrative Agent.

              (d) Default Under Other Agreements.

                     (i) Any member of the Borrower Group defaults for a period
beyond the applicable grace period in the payment of any principal, interest or
other amount due under any agreement evidencing, securing or creating any
Indebtedness of such member (including swap or similar derivative agreements) in
excess (individually or in the aggregate) of $15,000,000.

                     (ii) Any member of the Borrower Group shall default in the
observance or performance of any agreement or condition relating to any
Indebtedness the principal amount of which (individually or in the aggregate)
exceeds $25,000,000, or any other event or condition shall have occurred
thereunder, the effect of which default or other event or condition is to cause,
or to permit the holder or holders of such Indebtedness (or a trustee acting on
behalf of such holders) to cause any such Indebtedness to become due prior to
its stated maturity; or any such Indebtedness of any member of the Borrower
Group shall be declared due and payable prior to the stated maturity thereof.

              (e) Involuntary Bankruptcy, Etc. An involuntary proceeding shall
have been commenced against any member of the Borrower Group or seeking that
such Person be wound up or liquidated, adjudging such Person bankrupt or
insolvent or seeking reorganization, arrangement, adjustment or composition of
or in respect of such Person under any Applicable Law or seeking the appointment
of a receiver, liquidator, sindico, interventor, assignee, trustee, sequestrator
(or other similar official) of such Person or of any substantial part of its
property or other assets, or the winding up or liquidation of its affairs and
such proceeding continues undismissed for 60 days.

              (f) Voluntary Bankruptcy, Etc. The institution by any member of
the Borrower Group of proceedings to be adjudicated bankrupt or insolvent, or
the consent by it to the institution of bankruptcy or insolvency proceedings
against it; or the filing by it of a petition

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or answer or consent seeking reorganization or debt relief under any Applicable
Law or to the appointment of a receiver, liquidator, sindico, interventor,
assignee, trustee, sequestrator (or other similar official) of any such Person
or of any substantial part of its property; or the making by it of an assignment
for the benefit of creditors generally; or the admission by it in writing of its
inability to pay its debts generally as they become due; or any other event
shall have occurred which under any Applicable Law would have an effect
analogous to any of those events listed above in this Section 9.1(f) with
respect to any such Person; or any action is taken by any such Person for the
purpose of effecting any of the foregoing.

              (g) Analogous Proceedings. There occurs, in relation to any member
of the Borrower Group, in any country or territory in which any of them carries
on business or to the jurisdiction of whose courts any part of their assets is
subject, any event which in that country or territory corresponds with, or has
an effect equivalent or similar to, any of those mentioned in Section 9.1(e) or
9.1(f).

              (h) Attachment of Assets. Any Person attaches or institutes
proceedings to attach all or any part of the assets of the Borrower Group, and
any attachment or any judgment Lien against any such assets (i) remains
unlifted, unstayed or undischarged for a period of 30 days or (ii) is upheld in
a final nonappealable judgment of a court of competent jurisdiction.

              (i) Loan Documents. This Agreement or any of the Loan Documents or
any material provision hereof or thereof is or becomes invalid, illegal or
unenforceable or Borrower or any Guarantor shall have repudiated or disavowed or
taken any action to challenge the validity or enforceability of such agreement.

              (j) Expropriation. There shall have occurred any act or series of
acts attributable to a Governmental Authority which (i) in the reasonable
judgment of the Required Syndicated Lenders has the effect of depriving Lenders
of their rights as creditors in respect of this Agreement or any other Loan
Document, or (ii) confiscates, expropriates or nationalizes the ownership or
control of all or any substantial part of the System or other assets of a member
of the Borrower Group and such act or series of acts continues uncured for 120
days or more.

              (k) Monetary Restrictions. Any law, order, decree or regulation
shall impose any restriction on (i) the lawful transfer of Dollars by the
Borrower Group from Mexico to Administrative Agent (and from Administrative
Agent to any other Person or locale whether within or outside of Mexico), or
(ii) the conversion of (a) Dollars to Pesos or (b) Pesos to Dollars and which
restriction constitutes a Material Adverse Effect.

              (l) Judgments. One or more judgments or decrees shall be entered
against one or more members of the Borrower Group and such judgments or decrees
shall not be vacated, discharged or stayed or bonded (to the reasonable
satisfaction of the Required Lenders) pending appeal for any period of 60
consecutive days, and the aggregate amount of all such judgments and decrees
outstanding at any time (except to the extent any applicable insurer(s) shall
have acknowledged liability therefor) exceeds $5,000,000.

              (m) Licenses and Permits. The Borrower Group shall fail to obtain,
renew, maintain or comply in all material respects with the Licenses (or any
portion thereof); or any

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License (or any portion thereof) shall be rescinded, terminated, suspended,
modified or withheld or shall be determined to be invalid or shall cease to be
in full force and effect; or any proceedings shall be commenced by or before any
Governmental Authority for the purpose of rescinding, terminating, suspending,
modifying or withholding any such License (or any portion thereof) and such
proceeding is not dismissed within 60 days; and as a result of such failure,
rescission, determination of invalidity, termination, suspension, modification,
withholding, cessation or commencement the valid, enforceable and effective
Licenses then owned by Borrower (a) fail to cover all of Region 9, and either
all of Region 4 or all of Region 6 (as such Regions are defined in Exhibit A to
the Joint Venture Agreement) or (b) result in Covered Pops being less than
40,000,000 Pops.

              (n) Change of Control. A Change of Control shall have occurred and
be continuing.

              (o) Vendor Facilities and Senior Indebtedness. An "Event of
Default" shall have occurred and be continuing under (and as defined in the
documentation relating to) the Common Agreement or any other document or
agreement relating to the Vendor Facilities or other Senior Indebtedness,
including any Senior Indebtedness which is described in Section 2.04 of the
Common Agreement as in effect on the date hereof.

       9.2 Remedies. Upon the occurrence and during the continuation of an Event
of Default, Administrative Agent may, and if directed by the Lenders in
accordance with Section 9.3 shall, exercise any or all rights and remedies at
law or in equity (in any combination or order that Administrative Agent may
elect) and, without limitation or prejudice to the foregoing, at any time
thereafter during the continuance of such event, Administrative Agent may, and
if directed (except for any Event of Default with respect to Borrower as
described in clause (e), (f) or (g) of Section 9.1) by the Lenders in accordance
with Section 9.3 shall, by notice to Borrower, take either or both of the
following actions, at the same or different times: (i) terminate the
Commitments, and thereupon the Commitments shall terminate immediately, and (ii)
declare the Loans then outstanding to be due and payable in whole (or in part,
in which case any principal not so declared to be due and payable may thereafter
be declared to be due and payable), and thereupon the principal of the Loans so
declared to be due and payable, together with accrued interest thereon and all
fees and other obligations of Borrower accrued hereunder, shall become due and
payable immediately, without presentment, demand, protest or other notice of any
kind, all of which are hereby waived by Borrower and each member of the Borrower
Group; and in case of any event with respect to Borrower described in clause
(e), (f) or (g) of Section 9.1, the Commitments shall automatically terminate
and the principal of the Loans then outstanding, together with accrued interest
thereon and all fees and other obligations of Borrower accrued hereunder, shall
automatically become due and payable, without presentment, demand, protest or
other notice of any kind, all of which are hereby waived by Borrower and each
member of the Borrower Group.

       9.3 Exercise of Remedies. In taking or omitting to take any action, or
exercising any right or remedy under Section 9.2 upon an Event of Default,
Administrative Agent may take such actions or exercise such rights or remedies
as it deems prudent under the circumstances and, in any event, shall comply with
the directions of (a) the Required Syndicated Lenders, in the case

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of any Event of Default under clause (a), (c) to the extent resulting from a
breach of Sections 8.1 or 8.4, (h), (i), (j), (l) or (m) of Section 9.1,
(irrespective of the occurrence of any other Event of Default other than under
clause (e), (f) or (g) of Section 9.1), (b) the Required Lenders, in the case of
any Event of Default under clause (e), (f) or (g) of Section 9.1, without
limiting the terms of Section 9.2, and (c) QUALCOMM, in the case of any other
Event of Default (unless an Event of Default of the type described in the
immediately foregoing clause (a) or (b) shall have occurred). In no event shall
any Vendor Working Capital Loans or any Capitalized Interest Loans be
accelerated unless, either prior to or concurrently with such acceleration, all
Syndicated Working Capital Loans and all Term Loans shall have been accelerated.

SECTION 10. ADMINISTRATIVE AGENT.

       10.1 Appointment of Administrative Agent. Each of the Lenders and the
Issuing Bank hereby irrevocably appoints Administrative Agent as its agent and
authorizes Administrative Agent to take such actions on its behalf and to
exercise such powers as are delegated to Administrative Agent by the terms
hereof, together with such actions and powers as are reasonably incidental
thereto

       10.2 Rights and Powers as Lender. The bank serving as Administrative
Agent hereunder shall have the same rights and powers in its capacity as a
Lender as any other Lender and may exercise the same as though it were not
Administrative Agent, and such bank and its Affiliates may accept deposits from,
lend money to, act as trustee under indentures of, and generally engage in any
kind of business with, Borrower or any member of the Borrower Group or any
Subsidiary or other Affiliate of any such Person and any Person who may do
business with or own securities of Borrower, any member of the Borrower Group,
or any such Subsidiary or Affiliate, all as if such bank were not Administrative
Agent and without any duty to account therefor to the Lenders or any other
Person.

       10.3 Delegation of Duties by Administrative Agent. Administrative Agent
may perform any and all its duties and exercise its rights and powers by or
through any one or more sub-agents appointed by Administrative Agent.
Administrative Agent and any such sub-agent may perform any and all its duties
and exercise its rights and powers through their respective Related Parties. The
exculpatory provisions of this Section 10 shall apply to any such sub-agent and
to the Related Parties of Administrative Agent and any such sub-agent, and shall
apply to their respective activities in connection with the syndication of the
credit facilities provided for herein as well as activities as Administrative
Agent.

       10.4 Liability of Administrative Agent. Administrative Agent shall not
have any duties or obligations except those expressly set forth herein. Without
limiting the generality of the foregoing (a) Administrative Agent shall not be
subject to any fiduciary or other implied duties, regardless of whether a
Default or Event of Default has occurred and is continuing, (b) Administrative
Agent shall not have any duty to take any discretionary action or exercise any
discretionary powers, except discretionary rights and powers expressly
contemplated hereby that Administrative Agent is required to exercise in writing
by the Required Lenders or the Required Syndicated Lenders (or such other number
or percentage of the Lenders as shall be necessary under the circumstances as
provided in Section 11.2), as the case may be, and (c) except as

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expressly set forth herein, Administrative Agent shall not have any duty to
disclose, and shall not be liable for the failure to disclose, any information
relating to Borrower or any member of the Borrower Group or any of its or their
Subsidiaries that is communicated to or obtained by the bank serving as
Administrative Agent or any of its Affiliates in any capacity. Administrative
Agent shall not be liable for any action taken or not taken by it with the
consent or at the request of the Required Lenders or the Required Syndicated
Lenders (or such other number or percentage of the Lenders as shall be necessary
under the circumstances as provided in Section 11.2), as the case may be, or in
the absence of its own gross negligence or willful misconduct. Administrative
Agent shall be deemed not to have knowledge of any Default or Event of Default
unless and until written notice thereof is given to Administrative Agent by
Borrower or a Lender, and Administrative Agent shall not be responsible for or
have any duty to ascertain or inquire into (i) any statement, warranty or
representation made in or in connection with this Agreement, (ii) the contents
of any certificate, report or other document delivered hereunder or in
connection herewith, (iii) the performance or observance of any of the
covenants, agreements or other terms or conditions set forth herein, (iv) the
validity, enforceability, effectiveness or genuineness of this Agreement or any
other agreement, instrument or document, or (v) the satisfaction of any
condition set forth in Section 5 or elsewhere herein, other than to confirm
receipt of items expressly required to be delivered to Administrative Agent.

       10.5 Reliance by Administrative Agent. Administrative Agent shall be
entitled to rely upon, and shall not incur any liability for relying upon, any
notice, request, certificate, consent, statement, instrument, document or other
writing believed by it to be genuine and to have been signed or sent by the
proper Person. Administrative Agent also may rely upon any statement made to it
orally or by telephone and believed by it to be made by the proper Person, and
shall not incur any liability for relying thereon. Administrative Agent may
consult with legal counsel (who may be counsel for Borrower), independent
accountants and other experts selected by it, and shall not be liable for any
action taken or not taken by it in accordance with the advice of any such
counsel, accountants or experts.

       10.6 Non-Reliance by Lenders. Each Lender acknowledges that it has,
independently and without reliance upon Administrative Agent or any other Lender
and based on such documents and information as it has deemed appropriate, made
its own credit analysis and decision to enter into this Agreement. Each Lender
also acknowledges that it will, independently and without reliance upon
Administrative Agent or any other Lender and based on such documents and
information as it shall from time to time deem appropriate, continue to make its
own decisions in taking or not taking action under or based upon this Agreement,
any related agreement or any document furnished hereunder or thereunder.

       10.7 Indemnification. The Lenders agree to indemnify Administrative Agent
(to the extent not reimbursed by or on behalf of Borrower), ratably according to
the respective principal amounts of the Exposures then held by them (or if no
Exposures are at the time outstanding, ratably according to the respective
amounts of their Commitments), from and against any and all liabilities,
obligations, losses, damages, penalties, actions, judgments, suits, costs,
expenses or disbursements of any kind or nature whatsoever which may be imposed
on, incurred by, or asserted against Administrative Agent in any way relating to
or arising out of this Agreement or any action taken or omitted by
Administrative Agent under this Agreement, provided that no Lender shall be
liable for any portion of such liabilities, obligations, losses, damages,
penalties,

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actions, judgments, suits, costs, expenses or disbursements resulting from
Administrative Agent's gross negligence or willful misconduct. Without limiting
the foregoing, each Lender agrees to reimburse Administrative Agent promptly
upon demand for its ratable share of any out-of-pocket expenses (including
counsel fees) incurred by Administrative Agent in connection with the
preparation, execution, delivery, administration, modification, amendment or
enforcement (whether through negotiations, legal proceedings or otherwise) of,
or legal advice in respect of rights or responsibilities under, this Agreement,
to the extent that Administrative Agent is not reimbursed for such expenses by
or on behalf of Borrower.

       10.8 Successor Administrative Agent. Subject to the appointment and
acceptance of a successor Administrative Agent as provided in this paragraph,
Administrative Agent may resign at any time by notifying the Lenders, the
Issuing Bank and Borrower. Upon any such resignation, the Required Lenders shall
have the right, in consultation with Borrower, to appoint a successor. If no
successor shall have been so appointed by the Required Lenders and shall have
accepted such appointment within 30 days after the retiring Administrative Agent
gives notice of its resignation, then the retiring Administrative Agent may, on
behalf of the Lenders and the Issuing Bank, appoint a successor Administrative
Agent which shall be a bank with an office in New York, New York, or an
Affiliate of any such bank. Upon the acceptance of its appointment as
Administrative Agent hereunder by a successor, such successor shall succeed to
and become vested with all the rights, powers, privileges and duties of the
retiring Administrative Agent and the retiring Administrative Agent shall be
discharged from its duties and obligations hereunder. The fees payable by
Borrower to a successor Administrative Agent shall be the same as those payable
to its predecessor unless otherwise agreed between Borrower and such successor.
After Administrative Agent's resignation hereunder, the provisions of this
Section 10 and Section 11.3 shall continue in effect for the benefit of such
retiring Administrative Agent, its sub-agents and their respective Related
Parties in respect of any actions taken or omitted to be taken by any of them
while it was acting as Administrative Agent.

SECTION 11. MISCELLANEOUS.

       11.1 Notices.

               (a) Except in the case of notices and other communications
expressly permitted to be given by telephone, all notices and other
communications provided for herein shall be in writing and shall be delivered by
hand or overnight courier service, mailed by certified or registered mail or
sent by facsimile, (i) if to Borrower, any other member of the Borrower Group,
Administrative Agent, QUALCOMM, or any other Lender, at the address specified
for such Person on the signature pages to this Agreement (or in any Assignment
Agreement pursuant to which a Person becomes party to this Agreement), or (ii)
at such other address as shall be designated by any party or the Issuing Bank in
a written notice to the other parties to this Agreement.

              (b) All notices and other communications given to any party hereto
in accordance with the provisions of this Agreement shall be deemed to have been
given on the date of receipt.

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       11.2 Waivers; Amendments.

              (a) No failure or delay by Administrative Agent, the Issuing Bank
or any Lender in exercising any right or power hereunder shall operate as a
waiver thereof, nor shall any single or partial exercise of any such right or
power, or any abandonment or discontinuance of steps to enforce such a right or
power, preclude any other or further exercise thereof or the exercise of any
other right or power. The rights and remedies of Administrative Agent, the
Issuing Bank and the Lenders hereunder are cumulative and are not exclusive of
any rights or remedies that they would otherwise have. No waiver of any
provision of this Agreement or consent to any departure by Borrower therefrom
shall in any event be effective unless the same shall be permitted by paragraph
(b) of this Section, and then such waiver or consent shall be effective only in
the specific instance and for the purpose for which given. Without limiting the
generality of the foregoing, the making of a Loan or issuance of a Letter of
Credit shall not be construed as a waiver of any Default or Event of Default,
regardless of whether Administrative Agent, QUALCOMM, any other Lender or the
Issuing Bank may have had notice or knowledge of such Default or Event of
Default at the time.

              (b) Neither this Agreement nor any provision hereof may be waived,
amended or modified except pursuant to an agreement or agreements in writing
entered into by Borrower and the Required Lenders or by Borrower and
Administrative Agent with the consent of the Required Lenders; provided that the
provisions of Section 6, Section 7, or Sections 8.2 or 8.3 may be waived,
amended or modified, and clauses (b), (c), (d), (k), (n) or (o) of Section 9.1
may be waived, in each case pursuant to an agreement in writing entered into by
Borrower and QUALCOMM, or by Borrower and Administrative Agent with the consent
of QUALCOMM, so long as (i) such agreement (other than any such waiver) does not
impose any additional burdens, duties, liabilities (contingent or otherwise) or
obligations on, or limit, diminish or otherwise adversely affect the rights or
remedies of, the Lenders (other than QUALCOMM in its capacity as a Vendor
Working Capital Lender or a Capitalized Interest Lender) under or in connection
with this Agreement, (ii) concurrently with such agreement, QUALCOMM shall
deliver to Administrative Agent (for the benefit of the Guaranteed Parties under
the QUALCOMM Guaranty) a confirmation of the QUALCOMM Guaranty and a
certificate, signed by an Authorized Officer of QUALCOMM, confirming that no
QUALCOMM Event shall have occurred and be continuing and (iii) no Event of
Default shall have occurred and be continuing under clause (a), (e), (f), (g),
(h), (i), (j), (l) or (m) of Section 9.1; provided, further, that no agreement
waiving, amending or modifying this Agreement or any provision hereof shall (v)
increase the Commitment of any Lender without the written consent of such
Lender, (w) reduce the principal amount of any Loan or LC Disbursement or reduce
the rate of interest thereon, or reduce any fees payable hereunder, without the
written consent of each Lender affected thereby, (x) postpone the scheduled date
of payment of the principal amount of any Loan or LC Disbursement, or any
interest thereon, or any fees payable hereunder, or reduce the amount of, waive
or excuse any such payment, or postpone the scheduled date of expiration of any
Commitment, without the written consent of each Lender affected thereby, (y)
change Section 4.5(b) or (c) in a manner that would alter the pro rata sharing
of payments required thereby, without the written consent of each Lender, or (z)
change any of the provisions of this Section or the definition of "Required
Lenders" or "Required Syndicated Lenders" or any other provision hereof
specifying the number or percentage of Lenders required to waive, amend or
modify any

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rights hereunder or make any determination or grant any consent hereunder,
without the written consent of each Lender; provided further that no such
agreement shall amend, modify or otherwise affect the rights or duties of
Administrative Agent or the Issuing Bank without the prior written consent of
Administrative Agent or the Issuing Bank, as the case may be.

       11.3 Expenses, Indemnity, Damage Waiver.

              (a) Borrower shall pay (i) all reasonable out-of-pocket expenses
incurred by Administrative Agent and its Affiliates, including the reasonable
fees, charges and disbursements of counsel for Administrative Agent, in
connection with the syndication of the credit facilities provided for herein,
the preparation and administration of this Agreement or any amendments,
modifications or waivers of the provisions hereof (whether or not the
transactions contemplated hereby or thereby shall be consummated), (ii) all
reasonable out-of-pocket expenses incurred by the Issuing Bank in connection
with the issuance, amendment, renewal or extension of any Letter of Credit or
any demand for payment thereunder and (iii) all out-of-pocket expenses incurred
by Administrative Agent, the Issuing Bank or any Lender, including the fees,
charges and disbursements of any counsel for Administrative Agent, the Issuing
Bank or any Lender, in connection with the enforcement or protection of its
rights in connection with this Agreement, including its rights under this
Section, or in connection with the Loans made or Letters of Credit issued
hereunder, including all such out-of-pocket expenses incurred during any
workout, restructuring or negotiations (whether or not consummated) in respect
of such Loans or Letters of Credit.

              (b) Borrower shall indemnify Administrative Agent, the Issuing
Bank and each Lender, and each Related Party of any of the foregoing Persons
(each such Person being called an "Indemnitee") against, and hold each
Indemnitee harmless from, any and all losses, claims, damages, liabilities and
related expenses, including the fees, charges and disbursements of any counsel
for any Indemnitee, incurred by or asserted against any Indemnitee arising out
of, in connection with, or as a result of (i) the execution or delivery of this
Agreement or any agreement or instrument contemplated hereby, the performance by
the parties hereto of their respective obligations hereunder or the consummation
of the transactions contemplated by the Loan Documents or any other transactions
contemplated hereby, (ii) any Loan or Letter of Credit or the use of the
proceeds therefrom (including any refusal by the Issuing Bank to honor a demand
for payment under a Letter of Credit if the documents presented in connection
with such demand do not strictly comply with the terms of such Letter of
Credit), (iii) any actual or alleged presence or release of Hazardous Materials
on or from any property owned or operated by Borrower or any of its
Subsidiaries, or any Environmental Liability related in any way to Borrower or
any of its Subsidiaries, or (iv) any actual or prospective claim, litigation,
investigation or proceeding relating to any of the foregoing, whether based on
contract, tort or any other theory and regardless of whether any Indemnitee is a
party thereto; provided that such indemnity shall not, as to any Indemnitee, be
available to the extent that such losses, claims, damages, liabilities or
related expenses have resulted from the gross negligence or willful misconduct
of such Indemnitee.

              (c) To the extent permitted by applicable law, Borrower shall not
assert, and hereby waives, any claim against any Indemnitee, on any theory of
liability, for special, indirect,

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consequential or punitive damages (as opposed to direct or actual damages)
arising out of, in connection with, or as a result of, this Agreement or any
agreement or instrument contemplated hereby, the transactions contemplated by
any Loan Document, any Loan or Letter of Credit or the use of the proceeds
thereof.

              (d) All amounts due under this Section shall be payable promptly
after written demand therefor.

       11.4 Successors and Assigns; Participations.

              (a) The provisions of this Agreement shall be binding upon and
inure to the benefit of the parties hereto and their respective successors and
assigns permitted hereby (including any Affiliate of the Issuing Bank that
issues any Letter of Credit), except that Borrower may not assign or otherwise
transfer any of its rights or obligations hereunder without the prior written
consent of QUALCOMM and each other Lender (and any attempted assignment or
transfer by Borrower without such consent shall be null and void). Nothing in
this Agreement, expressed or implied, shall be construed to confer upon any
Person (other than the parties hereto, their respective successors and assigns
permitted hereby (including any Affiliate of the Issuing Bank that issues any
Letter of Credit) and, to the extent expressly contemplated hereby, the Related
Parties of each of Administrative Agent, the Issuing Bank and the Lenders) any
legal or equitable right, remedy or claim under or by reason of this Agreement.

              (b) Any Lender may assign to one or more Eligible Assignees all or
a portion of its rights and obligations under this Agreement (including all or a
portion of its Commitment, its LC Exposure (if any) and the Loans at the time
owing to it) and the Pagares; provided that (i) except in the case of an
assignment to a Lender or an Affiliate of a Lender, each of QUALCOMM (if
QUALCOMM is not the assigning Lender) and Administrative Agent must give their
prior written consent to such assignment (which consent shall not be
unreasonably withheld), (ii) except in the case of (A) an assignment to a Lender
or an Affiliate of a Lender, (B) an assignment of the entire remaining amount of
the assigning Lender's Commitment, or (C) an assignment that is one of a series
of assignments between the same assignor and assignee aggregating not less than
$5,000,000, the amount of the Commitment of the assigning Lender subject to each
such assignment (determined as of the date the Assignment Agreement with respect
to such assignment is delivered to Administrative Agent) shall not be less than
$5,000,000, unless each of Borrower, QUALCOMM and Administrative Agent otherwise
consent, (iii) each partial assignment shall be made as an assignment of a
proportionate part of all the assigning Lender's rights and obligations under
this Agreement, (iv) the parties to each assignment shall execute and deliver to
Administrative Agent an Assignment Agreement, together with a processing and
recordation fee of $3,500, except that no assignment fee shall be payable for
any assignment by or to QUALCOMM or in respect of any assignment in a series of
assignments between the same assignor and assignee if the assignment fee was
paid for the first assignment in such series, (v) the assignee, if it is not a
Lender, shall deliver to Administrative Agent an Administrative Questionnaire,
(vi) except as Borrower and QUALCOMM may otherwise agree, any assignment by
QUALCOMM prior to the Commitment Termination Date applicable to Syndicated
Working Capital Loans shall be to a Syndicated Lender or to an Additional Lender
that, from the effective date of such assignment, shall have the full benefit of

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the QUALCOMM Guaranty, and any assignment by QUALCOMM after the Commitment
Termination Date applicable to Syndicated Working Capital Loans but prior to the
Scheduled Maturity Date shall be to an Additional Lender that, from the
effective date of such assignment, shall have the full benefit of a guaranty
from QUALCOMM substantially similar to the QUALCOMM Guaranty, (vii) in
connection with each assignment by QUALCOMM, QUALCOMM shall use all commercially
reasonable efforts to seek Eligible Assignees that are Registered Financial
Institutions, (viii) in the case of an assignment of all or a portion of a
Syndicated Working Capital Commitment or any Lender's obligations in respect of
its LC Exposure, the Issuing Bank must give its prior written consent to such
assignment in its sole and absolute discretion and (ix) all assignments to
QUALCOMM shall be effected regardless of whether QUALCOMM shall (A) be
registered as a "Foreign Financial Institution" with the Secretaria de Hacienda
y Credito Publico (Ministry of Finance and Public Credit) of Mexico for purposes
of Article 154--I of the Mexican Income Tax Laws or (B) be a resident of a
jurisdiction that is a party to a treaty for the avoidance of double taxation
with Mexico; provided, further, that any consent of Borrower otherwise required
under this paragraph shall not be required if an Event of Default under
paragraph (e), (f) or (g) of Section 9.1 has occurred and is continuing. Subject
to acceptance and recording thereof pursuant to paragraph (d) of this Section,
from and after the effective date specified in each Assignment Agreement the
assignee thereunder shall be a party hereto and, to the extent of the interest
assigned by such Assignment Agreement, have the rights and obligations of a
Lender under this Agreement, and the assigning Lender thereunder shall, to the
extent of the interest assigned by such Assignment Agreement, be released from
its obligations under this Agreement (and, in the case of an Assignment
Agreement covering all of the assigning Lender's rights and obligations under
this Agreement, such Lender shall cease to be a party hereto but shall continue
to be entitled to the benefits of Sections 4.1, 4.2, 4.4 and 11.3). Any
assignment or transfer by a Lender of rights or obligations under this Agreement
that does not comply with this paragraph shall be treated for purposes of this
Agreement as a sale by such Lender of a participation in such rights and
obligations in accordance with paragraph (e) of this Section.

              (c) Administrative Agent, acting for this purpose as an agent of
Borrower, shall maintain at one of its offices in The City of New York a copy of
each Assignment Agreement delivered to it and a register for the recordation of
the names and addresses of the Lenders, and the Commitment of, and principal
amount of the Loans and LC Disbursements owing to, each Lender pursuant to the
terms hereof from time to time (the "Register"). The entries in the Register
shall be conclusive, and Borrower, Administrative Agent, the Issuing Bank and
the Lenders may treat each Person whose name is recorded in the Register
pursuant to the terms hereof as a Lender hereunder for all purposes of this
Agreement, notwithstanding notice to the contrary. The Register shall be
available for inspection by Borrower, the Issuing Bank and any Lender, at any
reasonable time and from time to time upon reasonable prior notice.

              (d) Upon its receipt of a duly completed Assignment Agreement
executed by an assigning Lender and an assignee, the assignee's completed
Administrative Questionnaire (unless the assignee shall already be a Lender
hereunder), the processing and recordation fee referred to in paragraph (b) of
this Section and any written consent to such assignment required by paragraph
(b) of this Section, Administrative Agent shall accept such Assignment Agreement
and record the information contained therein in the Register. No assignment
shall be effective for

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purposes of this Agreement unless it has been recorded in the Register as
provided in this paragraph.

              (e) Any Lender may, without the consent of Borrower,
Administrative Agent, the Issuing Bank or QUALCOMM, sell participations to one
or more banks or other entities (a "Participant") in all or a portion of such
Lender's rights and obligations under this Agreement and the Pagares (including
all or a portion of its Commitment and the Loans owing to it); provided that (i)
such Lender's obligations under this Agreement shall remain unchanged, (ii) such
Lender shall remain solely responsible to the other parties hereto for the
performance of such obligations and (iii) Borrower, Administrative Agent, the
Issuing Bank and the other Lenders shall continue to deal solely and directly
with such Lender in connection with such Lender's rights and obligations under
this Agreement. Any agreement or instrument pursuant to which a Lender sells
such a participation shall provide that such Lender shall retain the sole right
to enforce this Agreement and to approve any amendment, modification or waiver
of any provision of this Agreement; provided that such agreement or instrument
may provide that such Lender will not, without the consent of the Participant,
agree to any amendment, modification or waiver described in the first proviso to
Section 11.2(b) that affects such Participant. Subject to paragraph (f) of this
Section, Borrower agrees that each Participant shall be entitled to the benefits
of Sections 4.1, 4.2. and 4.4 to the same extent as if it were a Lender and had
acquired its interest by assignment pursuant to paragraph (b) of this Section.
To the extent permitted by law, each Participant also shall be entitled to the
benefits of Section 11.3 as though it were a Lender, provided such Participant
agrees to be subject to Section 4.5(c) as though it were a Lender.

              (f) A Participant shall not be entitled to receive any greater
payment under Section 4.1 or 4.4 than the applicable Lender would have been
entitled to receive with respect to the participation sold to such Participant,
unless the sale of the participation to such Participant is made with Borrower's
and QUALCOMM's prior written consent. A Participant that would be a Foreign
Lender if it were a Lender shall not be entitled to the benefits of Section 4.4
unless Borrower is notified of the participation sold to such Participant and
such Participant agrees, for the benefit of Borrower, to comply with Section
4.4(e) as though it were a Lender.

              (g) Any Lender may at any time pledge or assign a security
interest in all or any portion of its rights under this Agreement to secure
obligations of such Lender, including any pledge or assignment to secure
obligations to a Federal Reserve Bank, and this Section shall not apply to any
such pledge or assignment of a security interest; provided that no such pledge
or assignment of a security interest shall release a Lender from any of its
obligations hereunder or substitute any such pledgee or assignee for such Lender
as a party hereto.

       11.5 Survival. All covenants, agreements, representations and warranties
made by Borrower and each other member of the Borrower Group herein and in the
certificates or other instruments delivered in connection with or pursuant to
this Agreement and the other Loan Documents shall be considered to have been
relied upon by the other parties hereto and shall survive the execution and
delivery of this Agreement and the making of any Loans and issuance of any
Letters of Credit, regardless of any investigation made by any such other party
or on its behalf and notwithstanding that Administrative Agent, the Issuing Bank
or any Lender may have

                                       86
<PAGE>

had notice or knowledge of any Default, Event of Default or incorrect
representation or warranty at the time any credit is extended hereunder, and
shall continue in full force and effect as long as the principal of or any
accrued interest on any Loan or any fee or any other amount payable under this
Agreement is outstanding and unpaid or any Letter of Credit is outstanding and
so long as the Commitments have not expired or terminated. The provisions of
Sections 4.1, 4.2, 4.4 and 11.3 and Section 10 shall survive and remain in full
force and effect regardless of the consummation of the transactions contemplated
hereby, the repayment of the Loans, the expiration or termination of the Letters
of Credit and the Commitments or the termination of this Agreement or any
provision hereof.

       11.6 Counterparts; Integration; Effectiveness.

              (a) This Agreement may be executed in counterparts (and by
different parties hereto on different counterparts), each of which shall
constitute an original, but all of which when taken together shall constitute a
single contract. This Agreement and any separate letter agreements with respect
to fees payable to Administrative Agent constitute the entire contract among the
parties relating to the subject matter hereof and supersede any and all previous
agreements and understandings, oral or written, relating to the subject matter
hereof.

              (b) Except as provided in Sections 5.1 and 5.2, this Agreement
shall become effective when it shall have been executed by Administrative Agent
and when Administrative Agent shall have received counterparts hereof which,
when taken together, bear the signatures of each of the other parties hereto,
and thereafter shall be binding upon and inure to the benefit of the parties
hereto and their respective successors and assigns. Delivery of an executed
counterpart of a signature page of this Agreement by facsimile shall be
effective as delivery of a manually executed counterpart of this Agreement.

       11.7 Right of Set-off. If an Event of Default shall have occurred and be
continuing, each Lender and each of its Affiliates is hereby authorized at any
time and from time to time, to the fullest extent permitted by law, to set off
and apply any and all deposits (general or special, time or demand, provisional
or final) at any time held and other obligations at any time owing by such
Lender or Affiliate to or for the credit or the account of Borrower against any
of and all the obligations of Borrower now or hereafter existing under this
Agreement held by such Lender, irrespective of whether or not such Lender shall
have made any demand under this Agreement and although such obligations may be
unmatured. The rights of each Lender under this Section are in addition to other
rights and remedies (including other rights of setoff) which such Lender may
have.

       11.8 Severability. Any provision of this Agreement held to be invalid,
illegal or unenforceable in any jurisdiction shall, as to such jurisdiction, be
ineffective to the extent of such invalidity, illegality or unenforceability
without affecting the validity, legality and enforceability of the remaining
provisions hereof; and the invalidity of a particular provision in a particular
jurisdiction shall not invalidate such provision in any other jurisdiction.

       11.9 Governing Law; Jurisdiction; Consent to Service of Process.

                                       87
<PAGE>

              (a) This Agreement shall be construed in accordance with and
governed by the law of the State of New York, provided, however, that, if
QUALCOMM shall be the sole Lender hereunder and all Obligations owing to any
Syndicated Lender shall have been paid full, in connection with any legal action
or proceeding (other than an action to enforce a judgment obtained in another
jurisdiction) brought by QUALCOMM in respect to this Agreement in the courts of
Mexico or any political subdivision thereof, this Agreement (other than Section
10) shall be deemed to be an instrument made under the laws of Mexico and for
such purposes shall be governed by, and construed in accordance with, the laws
of the Federal District of Mexico.

              (b) Each party hereto hereby irrevocably and unconditionally
submits, for itself and its property, to the nonexclusive jurisdiction of the
Supreme Court of the State of New York sitting in New York County and of the
United States District Court of the Southern District of New York, and any
appellate court from any thereof, in any action or proceeding arising out of or
relating to this Agreement or any Pagare, or for recognition or enforcement of
any judgment, and each of the parties hereto hereby irrevocably and
unconditionally agrees that all claims in respect of any such action or
proceeding may be heard and determined in such New York State or, to the extent
permitted by law, in such Federal court. Each of the parties hereto agrees that
a final judgment in any such action or proceeding shall be conclusive and may be
enforced in other jurisdictions (including Mexico) by suit on the judgment or in
any other manner provided by law. Nothing in this Agreement shall affect any
right that Administrative Agent, the Issuing Bank or any Lender may otherwise
have to bring any action or proceeding relating to this Agreement against
Borrower or its properties in the courts of any jurisdiction.

              (c) Without limiting clause (b) of this Section 11.9, if QUALCOMM
shall be the sole Lender hereunder and all Obligations owing to any Syndicated
Lender shall have been paid in full and all the Commitments of the Syndicated
Lenders shall have been reduced to zero and terminated, QUALCOMM, Borrower and
each other member of the Borrower Group hereby irrevocably and unconditionally
submit, for itself and its property, to the nonexclusive jurisdiction of the
competent courts of the Federal District of Mexico, and any appellate court from
any thereof, in any action or proceeding arising out of or relating to this
Agreement or any Pagare, or for recognition or enforcement of any judgment, and
QUALCOMM and each member of the Borrower Group hereby irrevocably and
unconditionally agree that all claims in respect of any such action or
proceeding may be heard and determined in any such courts. QUALCOMM, Borrower
and each other member of the Borrower Group hereby waive any rights to a
specific jurisdiction it may have by virtue of its present or any future
domicile, or otherwise.

              (d) Borrower and each other member of the Borrower Group hereby
irrevocably and unconditionally waives, to the fullest extent it may legally and
effectively do so, any objection which it may now or hereafter have to the
laying of venue of any suit, action or proceeding arising out of or relating to
this Agreement in any court referred to in paragraph (b) or (c) of this Section.
Each of the parties hereto hereby irrevocably waives, to the fullest extent
permitted by law, the defense of an inconvenient forum to the maintenance of
such action or proceeding in any such court.

              (e) Borrower and each other member of the Borrower Group hereby
agrees that service of all writs, process and summonses in any such suit, action
or proceeding brought in

                                       88
<PAGE>

the State of New York may be made upon CT Corporation System, presently located
at 1633 Broadway, New York, New York 10019, U.S.A. (the "Process Agent"), and
Borrower and each other member of the Borrower Group hereby confirms and agrees
that the Process Agent has been duly and irrevocably appointed as its agent and
true and lawful attorney-in-fact in its name, place and stead to accept such
service of any and all such writs, process and summonses, and agrees that the
failure of the Process Agent to give any notice of any such service of process
to Borrower or any member of the Borrower Group shall not impair or affect the
validity of such service or of any judgment based thereon. Each party to this
Agreement further irrevocably consents to service of process in the manner
provided for written notices in Section 11.1. Nothing in this Agreement will
affect the right of any party to this Agreement to serve process in any other
manner permitted by law.

       11.10 WAIVER OF JURY TRIAL. EACH PARTY HERETO HEREBY WAIVES, TO THE
FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY
JURY IN ANY LEGAL PROCEEDING DIRECTLY OR INDIRECTLY ARISING OUT OF OR RELATING
TO THIS AGREEMENT, THE PAGARES OR THE TRANSACTIONS CONTEMPLATED HEREBY (WHETHER
BASED ON CONTRACT, TORT OR ANY OTHER THEORY). EACH PARTY HERETO (A) CERTIFIES
THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED,
EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF
LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT
AND THE OTHER PARTIES HERETO HAVE BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY,
AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION.

       11.11 Headings. The headings of the several sections and subsections of
this Agreement are inserted for convenience only and shall not in any way affect
the meaning or construction of any provision of this Agreement.

       11.12 Confidentiality. Subject to Sections 2.9(f), 2.16 and 11.4, Lenders
shall hold all nonpublic information obtained pursuant to the requirements of
this Agreement which has been identified as such by Borrower in accordance with
its customary procedure for handling confidential information of this nature and
in accordance with safe and sound banking practices and in any event may make
disclosure to its Affiliates, employees, auditors, advisors, or counsel or as
reasonably required by any bona fide transferee or participant in connection
with the contemplated transfer of any Loans or participation therein (so long as
such transferee or participant agrees to be bound by the provisions of this
Section 11.12) or as required or requested by any governmental agency or
representative thereof or pursuant to legal process, provided that, unless
specifically prohibited by applicable law or court order, each Lender shall
notify Borrower of any request by any governmental agency or representative
thereof (other than any such request in connection with an examination of the
financial condition of such Lender by such governmental agency) for disclosure
of any such nonpublic information prior to disclosure of such information, and
provided further that in no event shall any Lender be obligated or required to
return any materials furnished by any member of the Borrower Group.

                                       89
<PAGE>

       11.13 Interest Rate Limitation. Notwithstanding anything herein to the
contrary, if at any time the interest rate applicable to any Loan, together with
all fees, charges and other amounts which are treated as interest on such Loan
under applicable law (collectively the "Charges"), shall exceed the maximum
lawful rate (the "Maximum Rate") which may be contracted for, charged, taken,
received or reserved by the Lender holding such Loan in accordance with
applicable law, the rate of interest payable in respect of such Loan hereunder,
together with all Charges payable in respect thereof, shall be limited to the
Maximum Rate and, to the extent lawful, the interest and Charges that would have
been payable in respect of such Loan but were not payable as a result of the
operation of this Section shall be cumulated and the interest and Charges
payable to such Lender in respect of other Loans or periods shall be increased
(but not above the Maximum Rate therefor) until such cumulated amount, together
with interest thereon at the Federal Funds Rate to the date of repayment, shall
have been received by such Lender.

       11.14 Currency of Payment. The obligation of Borrower and the other
members of the Borrower Group to pay in Dollars those amounts of the sums
specified to be due in Dollars, under this Agreement or the respective Loan
Documents (the "Loan Document Currency") shall not be deemed to have been
novated, discharged or satisfied by any tender of (or recovery under judgment
expressed in) any currency other than the Loan Document Currency, except to the
extent to which such tender (or recovery) shall result in the effective payment
of such aggregate amount in the applicable Loan Document Currency at the place
where such payment is due and, accordingly, the amount (if any) by which any
such tender (or recovery) shall fall short of such amount shall be and remain
due to Administrative Agent, Lenders or QUALCOMM, as the case may be, as a
separate Obligation, unaffected by judgment having been obtained (if such is the
case) for any other amounts due in respect of this Agreement or the Loan
Documents.

       11.15 Judgment Currency. Borrower agrees to indemnify each Lender against
any loss incurred by it as a result of any judgment or order being given or made
for the payment of any amount due under any Pagare which is expressed and paid
in a currency (the "Judgment Currency") other than the currency in which such
amount was payable under this Agreement (the "Obligation Currency") and as a
result of any variation between (i) the rate of exchange at which the Obligation
Currency amount is converted into the Judgment Currency for the purposes of
satisfying such judgment or order, and (ii) the rate of exchange at which such
Lender is able to purchase the Obligation Currency with the amount of Judgment
Currency actually received by such Lender. The foregoing indemnity shall
constitute a separate and independent obligation of Borrower and shall continue
in full force and effect notwithstanding any such judgment or order as
aforesaid. The term "rate of exchange" shall include any premiums and costs of
exchange payable in connection with the purchase of, or conversions into, the
relevant currency.

       11.16 English Language. This Agreement is made in the English language.
One Spanish language translation of this Agreement prepared (if requested by
Administrative Agent (at the direction of the Required Syndicated Lenders or
QUALCOMM)) at Borrower's expense by an official public interpreter and approved
by Mexican counsel to Borrower and Mexican counsel to Lenders under this
Agreement shall be the agreed Spanish language translation hereof for all
purposes. Such translation and no other may be filed in one or more public
registries in

                                       90
<PAGE>

Mexico or used in any proceeding in Mexico. For all purposes, the English
language version hereof shall be the original instrument and in all cases of
conflict between the English and the Spanish versions, the English version shall
control.

       11.17 Reinstatement. This Agreement shall continue to be effective or be
reinstated, as the case may be, if at any time payment and performance of the
obligations of Borrower or the Borrower Group hereunder, or any part thereof,
is, pursuant to Applicable Law, rescinded or reduced in amount, or must
otherwise be restored or returned by Administrative Agent, any Lender or
QUALCOMM. In the event that any payment or any part thereof is so rescinded,
reduced, restored or returned, such obligations shall be reinstated and deemed
reduced only by such amount paid and not so rescinded, restored or returned.

       11.18 QUALCOMM Right of Subrogation. It is understood and agreed that
QUALCOMM has, on the date hereof, executed and delivered the QUALCOMM Guaranty
in favor of Administrative Agent, acting for and on behalf of the Syndicated
Lenders, and Borrower acknowledges receipt of an executed copy of such QUALCOMM
Guaranty. Borrower agrees and acknowledges that, if and to the extent that
QUALCOMM makes any payment under the QUALCOMM Guaranty (but subject to the
terms, conditions, limitations and waivers provided in the QUALCOMM Guaranty),
QUALCOMM will succeed to the rights (by means of subrogation) of the Syndicated
Lenders in respect of any interest, principal or other amounts so paid by
QUALCOMM. In no event shall (i) the obligation of QUALCOMM under the QUALCOMM
Guaranty, or (ii) any payment made by QUALCOMM under the QUALCOMM Guaranty in
either case relieve or absolve Borrower in any way from its Obligations under
this Agreement or the other Loan Documents, and all Obligations (including
principal and interest on the Loans) shall be deemed and considered for all
purposes to remain outstanding under all of the Loan Documents until satisfied
in full by Borrower. QUALCOMM and Administrative Agent, with the consent of each
Syndicated Lender, may from time to time amend, supplement or otherwise modify
or terminate the QUALCOMM Guaranty, and any such amendment, supplement,
modification or termination may be effected without any consent of or notice to
Borrower or any other member of the Borrower Group.

       11.19 No Third-Party Beneficiaries. The covenants contained herein are
made solely for the benefit of the parties hereto, and Related Parties,
successors and permitted assigns of such parties as specified herein, and shall
not be construed as having been intended to benefit any other Person not a party
to this Agreement.

                                       91
<PAGE>

              IN WITNESS WHEREOF, each of the parties hereto has caused a
counterpart of this Agreement to be duly executed and delivered as of the date
first above written.

BORROWER GROUP:                PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               PEGASO TELECOMUNICACIONES, S.A. DE C.V.

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               PEGASO PCS, S.A. DE C.V.

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                                       92
<PAGE>

                               PEGASO RECURSOS HUMANOS, S.A. DE C.V.

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               Notice Address for the Borrower Group:

                               Pegaso Comunicaciones y Sistemas, S.A. de C.V.
                               Paseo de los Tamarindos 400-A, 4th floor
                               Col. Bosques de las Lomas
                               Mexico, D.F. 05120
                               Facsimile No.:  011-525-261-6290
                               Telephone No.:  011-525-261-6243

                                       93
<PAGE>

ADMINISTRATIVE AGENT:          CITIBANK, N. A.,
                               as Administrative Agent

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               Notice Address:

                               Citibank, N.A.
                               2 Penns Way
                               Suite 200
                               New Castle, DE 19720
                               Attention:  Timothy Cassidy
                               Facsimile No.: 302-894-6120
                               Telephone No.:  302-894-6032

                                       94
<PAGE>

DOCUMENTATION AGENT:           ABN AMRO BANK N.V.,
                               as Documentation Agent

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               Notice Address:

                               ABN AMRO Bank N.V.
                               208 South LaSalle, Suite 1500
                               Chicago, IL 60604-1003
                               Attention:  Credit Administration
                               Facsimile No.:  312-992-5111
                               Telephone No.:  312-992-5110

                               With a copy to:

                               ABN AMRO Bank N.V.
                               300 South Grand Avenue, Suite 2650
                               Los Angeles, CA 90071-7519
                               Attention:    John A. Miller
                               Facsimile No.:213-687-2390
                               Telephone No.:213-687-2072

                                       95
<PAGE>

SYNDICATION AGENT:             SOCIETE GENERALE,
                               as Syndication Agent

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               Notice Address:

                               Societe Generale
                               1221 Avenue of the Americas
                               New York, NY 10020
                               Attention: Tom Fuller
                               Facsimile No.: 212-278-6136
                               Telephone No.: 212-278-5703

                                       96
<PAGE>

SYNDICATED LENDERS:            CITIBANK, N. A.

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               Notice Address:

                               Citibank, N.A.
                               399 Park Avenue, 8th Floor
                               New York, NY 10043
                               Attention: Terence Berry
                               Facsimile No.: 212-793-6873
                               Telephone No.: 212-559-3009

                                       97
<PAGE>

                               ABN AMRO BANK N.V.

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               Notice Address:

                               ABN AMRO Bank N.V.
                               208 South LaSalle, Suite 1500
                               Chicago, IL 60604-1003
                               Attention:  Credit Administration
                               Facsimile No.:  312-992-5111
                               Telephone No.:  312-992-5110

                               With a copy to:

                               ABN AMRO Bank N.V.
                               300 South Grand Avenue, Suite 2650
                               Los Angeles, CA 90071-7519
                               Attention:    John A. Miller
                               Facsimile No.: 213-687-2390
                               Telephone No.: 213-687-2072

                                       98
<PAGE>

                               SOCIETE GENERALE

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               Notice Address:

                               Societe Generale

                               2029 Century Park East -- Suite 2900
                               Los Angeles, California 90067
                               Attention: Blaine Shaum, Managing Director
                               Facsimile No.: 310-551-1537
                               Telephone No.: 310-788-7102

                               Societe Generale

                               1221 Avenue of the Americas -- 11th Floor
                               New York, NY 10020
                               Attention: Bruce Spector, Vice President
                               Facsimile No.:  212-278-6136
                               Telephone No. :212-278-6149

                                       99
<PAGE>

VENDOR WORKING
CAPITAL LENDER:                QUALCOMM INCORPORATED

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               Notice Address:

                               QUALCOMM Incorporated
                               6455 Lusk Boulevard
                               San Diego, CA 92121
                               Attention: Vice President, Project Finance
                               Facsimile No.:619-658-4203
                               Telephone No.: 619-658-4846

                                      100
<PAGE>

CAPITALIZED INTEREST LENDER:   QUALCOMM INCORPORATED

                               By:
                                  ----------------------------------------------
                               Printed Name:
                                            ------------------------------------
                               Title:
                                     -------------------------------------------

                               Notice Address:

                               QUALCOMM Incorporated
                               6455 Lusk Boulevard
                               San Diego, CA 92121
                               Attention: Vice President, Project Finance
                               Facsimile No.:619-658-4203
                               Telephone No.: 619-658-4846

                                      101
<PAGE>
                    FIRST AMENDMENT TO BRIDGE LOAN AGREEMENT

     This FIRST AMENDMENT TO BRIDGE LOAN AGREEMENT (this "Amendment"), dated as
of February 8, 2000, is entered into by PEGASO COMUNICACIONES Y SISTEMAS, S.A.
DE C.V., a sociedad anonima de capital variable organized under the laws of
Mexico ("Borrower"), PEGASO TELECOMUNICACIONES, S.A. DE C.V., a sociedad
anonima de capital variable organized under the laws of Mexico, PEGASO PCS,
S.A. DE C.V., a sociedad anonima de capital variable organized under the laws
of Mexico, PEGASO RECURSOS HUMANOS, S.A. DE C.V.,  a sociedad anonima de
capital variable organized under the laws of Mexico, QUALCOMM INCORPORATED, a
corporation organized under the laws of Delaware, ("QUALCOMM") and the
Syndicated Lenders referred to in the below referenced Bridge Loan Agreement
(each Syndicated Lender, together with QUALCOMM, a "Lender" and, collectively,
"Lenders"), CITIBANK, N.A., a national banking association, in its capacity as
administrative agent for Lenders ("Administrative Agent"), SOCIETE GENERALE, as
Syndication Agent, ABN AMRO BANK N.V., as Documentation Agent and BANKBOSTON,
N.A., as Co-Documentation Agent, under the Bridge Loan Agreement dated as of
May 27, 1999 (as modified, amended, supplemented or restated from time to time,
the "Bridge Loan Agreement"). Capitalized terms used and not otherwise defined
in this Amendment shall have the same meanings in this Amendment as set forth
in the Bridge Loan Agreement, and the rules of interpretation set forth in
Section 1.2 of the Bridge Loan Agreement shall be applicable to this Amendment,
mutatis mutandis, as if set forth in this Amendment.

                                   RECITALS:

     A.   Borrower has requested that the Bridge Loan Agreement be amended to
(i) change the definitions of "Total Syndicated Working Capital Commitment" and
"Total Working Capital Commitment" and (ii) increase the amount of the
Syndicated Working Capital Commitment for each Syndicated Lender from
Twenty-Five Million Dollars ($25,000,000) to Forty-Three Million Seven Hundred
Fifty Thousand Dollars ($43,750,000).

     B.   QUALCOMM, the Lenders, the Administrative Agent, the Syndication
Agent, the Documentation Agent and the Co-Documentation Agent have agreed to
amend the Bridge Loan Agreement upon the terms and conditions set forth in this
Amendment.

     NOW, THEREFORE, in consideration of the foregoing, the mutual covenants
and agreements set forth below and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties agree as
follows:

     Section 1. Amendment. Subject to the satisfaction of the conditions
precedent set forth in Section 2, the Bridge Loan Agreement is hereby amended
as follows:

     (a)  Section 1.1 of the Bridge Loan Agreement is amended by substituting
for the definition of "Total Syndicated Working Capital Commitment", the
following new definition of "Total Syndicated Working Capital Commitment":

<PAGE>
            "Total Syndicated Working Capital Commitment" shall mean One
Hundred Seventy-Five Million Dollars ($175,000,000), as such amount may be
reduced pursuant to Section 2.9(g).

            (b)   Section 1.1 of the Bridge Loan Agreement is amended by
substituting for the definition of "Total Working Capital Commitment", the
following new definition of "Total Working Capital Commitment":

            "Total Working Capital Commitment" shall mean the sum of the Total
Syndicated Working Capital Commitment and the Total Vendor Working Capital
Commitment, which shall be an aggregate amount equal to One Hundred Seventy-Five
Million Dollars ($175,000,000); provided that after the Commitment Termination
Date applicable to Syndicated Working Capital Loans, if the Term-Out Option
shall have become effective, the "Total Working Capital Commitment" shall mean
the sum of the Total Term Loan Commitment and the Total Vendor Working Capital
Commitment.

            (c)  Schedule 2.1 to the Bridge Loan Agreement is hereby replaced in
its entirety by Amended Schedule 2.1 as set forth in Appendix 1 to this
Amendment.

            Section 2.  Conditions to Effectiveness.  This Amendment shall
become effective upon the satisfaction of all of the following conditions
precedent (the date of satisfaction of all such conditions being referred to
as the "Amendment Effective Date").

            (a)  On or before the Amendment Effective Date, each member of the
Borrower Group shall deliver to the Administrative Agent, by facsimile, copies
of (with sufficient originally executed copies for each Lender to be delivered
by overnight courier service) the following described documents (each of which
shall be reasonably satisfactory in form and substance to the Administrative
Agent, acting on behalf of the Lenders, and its counsel):

                  (i)   this Amendment, duly executed and delivered by the
parties and

                  (ii)  such other documents, instruments, approvals or
opinions as the Administrative Agent may reasonably request;

            (b)   On or before the Amendment Effective Date, QUALCOMM shall
deliver to the Administrative Agent, by facsimile, copies of (with sufficient
originally executed copies for each Lender to be delivered by overnight courier
service) the following described documents (each of which shall be reasonably
satisfactory in form and substance to the Administrative Agent, acting on behalf
of the Lenders, and its counsel):

                  (i)   a confirmation of the QUALCOMM Guaranty, duly executed
and delivered by QUALCOMM, as guarantor under the QUALCOMM Guaranty, in favor
of Administrative Agent for the benefit of itself and the other Syndicated
Lender and

                  (ii)  such other documents instruments, approvals or opinions
as the Administrative Agent may reasonably request;

                                       2
<PAGE>
          (c)  Administrative Agent (for its own account or for the account of
the other Syndicated Lenders, as the case may be) shall have received all fees
and other amounts due and payable on or prior to the Amendment Effective Date,
including, to the extent invoiced, reimbursement or payment of all
out-of-pocket expenses required to be reimbursed or paid by Borrower under or
in connection with this Amendment;

          (d)  On or before the Amendment Effective Date, all corporate,
partnership and other proceedings taken by each member of the Borrower Group or
to be taken in connection with the transactions contemplated by this Amendment,
and all documents incidental to such transactions, shall be reasonably
satisfactory in form and substance to the Administrative Agent and its counsel,
and the Administrative Agent and such counsel shall have received all such
counterpart originals or certified copies of such documents, opinions,
certificates, and evidence as they may reasonably request;

          (e)  The representations and warranties set forth in Section 3 of
this Amendment shall be true and correct as of the Amendment Effective Date;
and

          (f)  All approvals, authorizations, filings or Permits necessary for
the execution, delivery and performance of this Amendment shall have been made,
taken or obtained from or with any Governmental Authority, and no order,
statutory rule, regulation, executive order, decree, judgment or injunction
shall have been enacted, entered, issued, promulgated or enforced by any
Governmental Authority which prohibits or restricts the transactions
contemplated by this Amendment, nor shall any action have been commenced or
threatened seeking any injunction or any restraining or other order to
prohibit, restrain, invalidate or set aside the transactions contemplated by
this Amendment.

          Section 3.  Borrower's Representations and Warranties. In order to
induce the Lenders to enter into this Amendment and to amend the Bridge Loan
Agreement in the manner provided in this Amendment, Borrower represents and
warrants to each Lender, the Administrative Agent, the Syndication Agent, the
Documentation Agent and the Co-Documentation Agent as follows:

          (a)  Corporate Power and Authority. Borrower has all requisite
corporate power and authority to enter into this Amendment and to carry out the
transactions contemplated by, and perform its obligations under, the Bridge Loan
Agreement as amended by this Amendment (the "Amended Agreement").

          (b)  Authorization of Agreements. The execution and delivery of this
Amendment, the borrowing of Loans pursuant to the increased Commitments as set
forth in Amended Schedule 2.1 to the Bridge Loan Agreement, and the performance
of the Amended Agreement have been duly authorized by all necessary corporate
and, if required, stockholder action of Borrower, and this Amendment has been
duly executed and delivered by Borrower.

          (c)  Enforceability. The Amended Agreement constitutes the legal,
valid and binding obligation of Borrower, enforceable against Borrower in
accordance with its terms, except as may be limited by bankruptcy, insolvency or
other similar laws affecting the enforcement of creditors' rights in general.
The enforceability of Borrower's obligations

                                       3
<PAGE>
thereunder is subject to general principles of equity (regardless of whether
such enforceability is considered in a proceeding in equity or at law).

     (d) No Conflict. The execution and delivery by Borrower of this Amendment
and the performance by Borrower of the Amended Agreement do not and will not (i)
contravene, in any material respect, any provision of any law, regulation,
decree, ruling, judgment or order that is (A) applicable to Borrower or any of
its properties or other assets and (B) in effect when this representation and
warranty is made, (ii) result in a breach of or constitute a default under its
charter documents or any other material agreement, indenture, lease or
instrument binding upon Borrower or any of its properties or other assets and
(iii) result in the creation or imposition of any Liens on any property (other
than Permitted Liens) of Borrower.

     (e) Permits. The execution, delivery and performance by Borrower of this
Amendment do not and will not require any Permit and do not result in the loss
or impairment of any Permit previously obtained in connection with the
execution, delivery and performance of the Loan Documents or the acquisition,
construction, ownership, maintenance or operation of the System.

     (f) Representations and Warranties in the Bridge Loan Agreement; Defaults.
Borrower confirms that as of the Amendment Effective Date the representations
and warranties contained in Section 6 of the Bridge Loan Agreement are (before
and after giving effect to this Amendment) true and correct and that no Default
or Event of Default has occurred.

     Section 4. Miscellaneous.

     (a) Reference to and Effect on the Bridge Loan Agreement and the other Loan
Documents.

          (i) The Bridge Loan Agreement and the other Loan Documents as
specifically amended by this Amendment shall remain in full force and effect and
are hereby ratified and confirmed.

          (ii) The execution, delivery and performance of this Amendment shall
not, except as expressly provided in this Amendment, constitute a waiver of any
provision of, or operate as a waiver of any right, power or remedy of QUALCOMM,
the Lenders, the Administrative Agent, the Syndication Agent, the Documentation
Agent and the Co-Documentation Agent under, the Bridge Loan Agreement or any of
the other Loan Documents.

          (iii) Upon the conditions precedent set forth in this Amendment being
satisfied, this Amendment shall be construed as one with the Bridge Loan
Agreement, and the Bridge Loan Agreement shall, where the context requires, be
read and construed throughout so as to incorporate this Amendment.

     (b) Fees and Expenses. Borrower acknowledges that all costs, fees and
expenses as described in Section 11.3(a) of the Bridge Loan Agreement incurred
by QUALCOMM, the Lenders, the Administrative Agent, the Syndication Agent, the

                                       4
<PAGE>
Documentation Agent and the Co-Documentation Agent, and in each case its
counsel, with respect to this Amendment and the documents and transactions
contemplated hereby shall be for the account of Borrower.

     (c) Execution in Counterparts; Effectiveness. This Amendment may be
executed in any number of counterparts, and by different parties hereto in
separate counterparts, each of which when so executed and delivered shall be
deemed an original, but all such counterparts taken together shall constitute
but one and the same instrument.

     (d) Headings. Section and subsection headings in this Amendment are
included for convenience of reference only and shall not constitute a part of
this Amendment for any other purpose or be given any substantive effect.

     (e) Severability. If any provision contained in or obligation under this
Amendment shall be invalid, illegal or unenforceable in any jurisdiction, the
validity, legality and enforceability of the remaining provisions or
obligations, or of such provision or obligation in any other jurisdiction, shall
not in any way be affected or impaired thereby.

     (f) GOVERNING LAW; JURISDICTION. THIS AMENDMENT SHALL BE GOVERNED BY, AND
SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW
YORK. EACH PARTY HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY SUBMITS, FOR
ITSELF AND ITS PROPERTY, TO THE NONEXCLUSIVE JURISDICTION OF THE SUPREME COURT
OF THE STATE OF NEW YORK SITTING IN NEW YORK COUNTY AND OF THE UNITED STATES
DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK, AND ANY APPELLATE COURT
FROM ANY THEREOF, FOR THE PURPOSES OF ALL LEGAL PROCEEDINGS ARISING OUT OF OR
RELATING TO THIS AMENDMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY, AND EACH OF
THE PARTIES HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY AGREES THAT ALL CLAIMS
IN RESPECT OF ANY SUCH ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN SUCH
NEW YORK STATE OR, TO THE EXTENT PERMITTED BY LAW, IN SUCH FEDERAL COURT. EACH
OF THE PARTIES HERETO AGREES THAT A FINAL JUDGMENT IN ANY SUCH ACTION OR
PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN OTHER JURISDICTIONS
(INCLUDING MEXICO) BY SUIT ON THE JUDGMENT OR IN ANY OTHER MANNER PROVIDED BY
LAW. NOTHING IN THIS AMENDMENT SHALL AFFECT ANY RIGHT THAT ADMINISTRATIVE AGENT
OR ANY LENDER MAY OTHERWISE HAVE TO BRING ANY ACTION OR PROCEEDING RELATING TO
THIS AMENDMENT AGAINST BORROWER OR ITS PROPERTIES IN THE COURTS OF ANY
JURISDICTION. EACH OF THE PARTIES HERETO IRREVOCABLY WAIVES, TO THE FULLEST
EXTENT PERMITTED BY LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE
LAYING OF THE VENUE OF ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT AND ANY CLAIM
THAT ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN
INCONVENIENT FORUM.

                                       5
<PAGE>

                                   Appendix 1

                                                            Amended Schedule 2.1
                                                                       to Bridge
                                                                  Loan Agreement

                     SYNDICATED WORKING CAPITAL COMMITMENTS

<Table>
<Caption>
               SYNDICATED LENDER                        COMMITMENT
               -----------------                        ----------
               <S>                                      <C>
               Citibank, N.A.                           $43,750,000

               Societe Generale                         $43,750,000

               ABN AMRO Bank N.V.                       $43,750,000

               BankBoston, N.A.                         $43,750,000
</Table>
<PAGE>
     IN WITNESS WHEREOF, the parties hereto have duly executed this Amendment as
of the date first above written.

THE BORROWER GROUP:

PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.

By:
    ----------------------------------
Printed Name:
             -------------------------
Title:
      --------------------------------

PEGASO TELECOMUNICACIONES, S.A. DE C.V.

By:
    ----------------------------------
Printed Name:
             -------------------------
Title:
      --------------------------------

PEGASO PCS, S.A. DE C.V.

By:
    ----------------------------------
Printed Name:
             -------------------------
Title:
      --------------------------------

PEGASO RECURSOS HUMANOS, S.A. DE C.V.

By:
    ----------------------------------
Printed Name:
             -------------------------
Title:
      --------------------------------

<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By: /s/ TERENCE BERRY
    ------------------------------

Printed Name:
              --------------------

Title: AVP
       ---------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By: /s/ J. BLAINE SHAUM
    ------------------------------

Printed Name: J. Blaine Shaum
              --------------------

Title: Managing Director
       ---------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By: /s/ JOHN A. MILLER
    ------------------------------

Printed Name: JOHN A. MILLER
              --------------------

Title: GROUP VICE PRESIDENT
       ---------------------------

By: /s/ PAUL K. STIMPFL
    ------------------------------

Printed Name: PAUL K. STIMPFL
              --------------------

Title: GROUP VICE PRESIDENT
       ---------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

BANKBOSTON, N.A.,
as Co-Documentation Agent

By:       /s/ MICHAEL S. BARCLAY
    ------------------------------------

Printed Name: Michael S. Barclay
              --------------------------

Title:        Vice President
       ---------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

ABN AMRO BANK N.V.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SOCIETE GENERALE

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------
<PAGE>
CO-DOCUMENTATION AGENT:

BANKBOSTON, N.A.,
as Co-Documentation Agent

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:       /s/ [ILLEGIBLE]
    ------------------------------------

Printed Name:
              --------------------------

Title:        [ILLEGIBLE]
       ---------------------------------

ABN AMRO BANK N.V.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SOCIETE GENERALE

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

BANKBOSTON, N.A.,
as Co-Documentation Agent

By:
    -------------------------------------

Printed Name:
              ---------------------------

Title:
       ----------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
    -------------------------------------

Printed Name:
              ---------------------------

Title:
       ----------------------------------

ABN AMRO BANK N.V.

By:       /s/ JOHN A. MILLER
    -------------------------------------

Printed Name: John A. Miller
              ---------------------------

Title:        Group Vice President
       ----------------------------------

By:       /s/ PAUL K. STIMPFL
    -------------------------------------

Printed Name: Paul K. STIMPFL
              ---------------------------

Title:        Group Vice President
       ----------------------------------

SOCIETE GENERALE

By:
    -------------------------------------

Printed Name:
              ---------------------------

Title:
       ----------------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

BANKBOSTON, N.A.,
as Co-Documentation Agent

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

ABN AMRO BANK N.V.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SOCIETE GENERALE

By:       /s/ J. BLAINE SHAUM
    ------------------------------------

Printed Name: J. Blaine Shaum
              --------------------------

Title:        Managing Director
       ---------------------------------

<PAGE>
BANKBOSTON, N.A.

By:       /s/ MICHAEL S. BARCLAY
    -----------------------------------
Printed Name: Michael S. Barclay
              -------------------------
Title:        Vice President
       --------------------------------

CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATED

By:
    -----------------------------------
Printed Name:
             --------------------------
Title:
      ---------------------------------

<PAGE>
BANKBOSTON, N.A.

By:
    -----------------------------------
Printed Name:
             --------------------------
Title:
      ---------------------------------

CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATED

By: /s/ [SIGNATURE ILLEGIBLE]
    -----------------------------------
Printed Name:
             --------------------------
Title:
      ---------------------------------

<PAGE>
                   SECOND AMENDMENT TO BRIDGE LOAN AGREEMENT

        This SECOND AMENDMENT TO BRIDGE LOAN AGREEMENT (this "Amendment"), dated
as of August 22, 2000, is entered into by PEGASO COMUNICACIONES Y SISTEMAS, S.A.
DE C.V., a sociedad anonima de capital variable organized under the laws of
Mexico ("Borrower"), PEGASO TELECOMUNICACIONES, S.A. DE C.V., a sociedad anonima
de capital variable organized under the laws of Mexico ("Pegaso"), PEGASO PCS,
S.A. DE C.V., a sociedad anonima de capital variable organized under the laws of
Mexico ("Pegaso PCS"), PEGASO RECURSOS HUMANOS, S.A. DE C.V., a sociedad anonima
de capital variable organized under the laws of Mexico ("Pegaso RH"), QUALCOMM
INCORPORATED, a corporation organized under the laws of Delaware, ("QUALCOMM")
and the Syndicated Lenders referred to in the below referenced Bridge Loan
Agreement (each Syndicated Lender, together with QUALCOMM, a "Lender" and,
collectively, "Lenders"). CITIBANK, N.A., a national banking association, in its
capacity as administrative agent for Lenders ("Administrative Agent"), SOCIETE
GENERALE, as Syndication Agent, ABN AMRO BANK N.V., as Documentation Agent and
FLEET NATIONAL BANK, as Co-Documentation Agent, under the Bridge Loan Agreement
dated as of May 27, 1999 (as modified, amended, supplemented or restated from
time to time, the "Bridge Loan Agreement"). Capitalized terms used and not
otherwise defined in this Amendment shall have the same meanings in this
Amendment as set forth in the Bridge Loan Agreement, and the rules of
interpretation set forth in Section 1.2 of the Bridge Loan Agreement shall be
applicable to this Amendment, mutatis mutandis, as if set forth in this
Amendment.

                                   RECITALS:

        A.   Borrower previously elected to exercise its Term-Out Option
pursuant to Section 2.10(b) of the Bridge Loan Agreement and selected August 25,
2000 as the Scheduled Maturity Date.

        B.   Borrower has requested that the Bridge Loan Agreement be amended to
extend the Scheduled Maturity Date until November 24, 2000.

        C.   QUALCOMM, the Lenders, the Administrative Agent, the Syndication
Agent, the Documentation Agent and the Co-Documentation Agent have agreed to
amend the Bridge Loan Agreement upon the terms and conditions set forth in this
Amendment.

        NOW, THEREFORE, in consideration of the foregoing, the mutual covenants
and agreements set forth below and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties agree as
follows:

        Section 1. Amendment. Subject to the satisfaction of the conditions
precedent set forth in Section 2, Section 1.1 of the Bridge Loan Agreement is
amended by substituting for the definition of "Scheduled Maturity Date", the
following new definition of "Scheduled Maturity Date":

<PAGE>
     "Scheduled Maturity Date" shall mean November 24, 2000.

     Section 2. Conditions to Effectiveness. This Amendment shall become
effective upon the satisfaction of all of the following conditions precedent
(the date of satisfaction of all such conditions being referred to as the
"Amendment Effective Date"):

     (a)  On or before the Amendment Effective Date, each member of the Borrower
Group shall deliver to the Administrative Agent, by facsimile, copies of (with
sufficient originally executed copies for each Lender to be delivered by
overnight courier service) the following described documents (each of which
shall be reasonably satisfactory in form and substance to the Administrative
Agent, acting on behalf of the Lenders, and its counsel):

          (i)   this Amendment, duly executed and delivered by the parties and

          (ii)  such other documents, instruments, approvals or opinions as the
Administrative Agent may reasonably request;

     (b)  On or before the Amendment Effective Date, QUALCOMM shall deliver to
the Administrative Agent, by facsimile, copies of (with sufficient originally
executed copies for each Lender to be delivered by overnight courier service)
the following described documents (each of which shall be reasonably
satisfactory in form and substance to the Administrative Agent, acting on
behalf of the Lenders, and its counsel):

          (i)   a confirmation of the QUALCOMM Guaranty, duly executed and
delivered by QUALCOMM, as guarantor under the QUALCOMM Guaranty, in favor of
Administrative Agent for the benefit of itself and the other Syndicated Lenders;

          (ii)  a confirmation of the Pegaso Guaranty Agreement, duly executed
and delivered by each of Pegaso, Pegaso PCS and Pegaso RH, as guarantors under
the Pegaso Guaranty Agreement, in favor of Administrative Agent for the benefit
of itself and the other Syndicated Lenders; and

          (iii) such other documents, instruments, approvals or opinions as the
Administrative Agent may reasonably request;

     (c)  Administrative Agent (for its own account or for the account of the
other Syndicated Lenders, as the case may be) shall have received all fees and
other amounts due and payable on or prior to the Amendment Effective Date,
including, to the extent invoiced, reimbursement or payment of all
out-of-pocket expenses required to be reimbursed or paid by Borrower under or
in connection with this Amendment;

     (d)  On or before the Amendment Effective Date, all corporate, partnership
and other proceedings taken by each member of the Borrower Group or to be taken
in connection with the transactions contemplated by this Amendment, and all
documents incidental to such transactions, shall be reasonably satisfactory in
form and substance to the Administrative Agent and its counsel, and the
Administrative Agent and such counsel shall have received all such

                                       2

<PAGE>
counterpart originals or certified copies of such documents, opinions,
certificates, and evidence as they may reasonably request;

          (e) The representations and warranties set forth in Section 3 of this
Amendment shall be true and correct as of the Amendment Effective Date; and

          (f) All approvals, authorizations, filings or Permits necessary for
the execution, delivery and performance of this Amendment shall have been made,
taken or obtained from or with any Governmental Authority, and no order,
statutory rule, regulation, executive order, decree, judgment or injunction
shall have been enacted, entered, issued, promulgated or enforced by any
Governmental Authority which prohibits or restricts the transactions
contemplated by this Amendment nor shall any action have been commenced or
threatened seeking any injunction or any restraining or other order to prohibit,
restrain, invalidate or set aside the transactions contemplated by this
Amendment.

          Section 3. Borrower's Representations and Warranties. In order to
induce the Lenders to enter into this Amendment and to amend the Bridge Loan
Agreement in the manner provided in this Amendment, Borrower represents and
warrants to each Lender, the Administrative Agent, the Syndication Agent, the
Documentation Agent and the Co-Documentation Agent as follows:

          (a) Corporate Power and Authority. Borrower has all requisite
corporate power and authority to enter into this Amendment and to carry out the
transactions contemplated by, and perform its obligations under, the Bridge Loan
Agreement as amended by this Amendment (the "Amended Agreement").

          (b) Authorization of Agreements. The execution and delivery of this
Amendment and the performance of the Amended Agreement have been duly authorized
by all necessary corporate and, if required, stockholder action of Borrower, and
this Amendment has been duly executed and delivered by Borrower.

          (c) Enforceability. The Amended Agreement constitutes the legal, valid
and binding obligation of Borrower, enforceable against Borrower in accordance
with its terms, except as may be limited by bankruptcy, insolvency or other
similar laws affecting the enforcement of creditors' rights in general. The
enforceability of Borrower's obligations thereunder is subject to general
principles of equity (regardless of whether such enforceability is considered in
a proceeding in equity or at law).

          (d) No Conflict. The execution and delivery by Borrower of this
Amendment and the performance by Borrower of the Amended Agreement do not and
will not (i) contravene, in any material respect, any provision of any law,
regulation, decree, ruling, judgment or order that is (A) applicable to Borrower
or any of its properties or other assets and (B) in effect when this
representation and warranty is made, (ii) result in a breach of or constitute a
default under its charter documents or any other material agreement, indenture,
lease or instrument binding upon Borrower or any of its properties or other
assets and (iii) result in the creation or imposition of any Liens on any
property (other than Permitted Liens) of Borrower.

                                       3
<PAGE>
          (e)  Permits. The execution, delivery and performance by Borrower of
this Amendment do not and will not require any Permit and do not result in the
loss or impairment of any Permit previously obtained in connection with the
execution, delivery and performance of the Loan Documents or the acquisition,
construction, ownership, maintenance or operation of the System.

          (f)  Representations and Warranties in the Bridge Loan Agreement;
Defaults. Borrower confirms that as of the Amendment Effective Date the
representations and warranties contained in Section 6 of the Bridge Loan
Agreement are (before and after giving effect to this Amendment) true and
correct and that no Default or Event of Default has occurred.

          Section 4.  Miscellaneous.

          (a)  Reference to and Effect on the Bridge Loan Agreement and the
other Loan Documents.

               (i)   The Bridge Loan Agreement and the other Loan Documents as
specifically amended by this Amendment shall remain in full force and effect
and are hereby ratified and confirmed.

               (ii)  The execution, delivery and performance of this Amendment
shall not, except as expressly provided in this Amendment, constitute a waiver
of any provision of, or operate as a waiver of any right, power or remedy of
QUALCOMM, the Lenders, the Administrative Agent, the Syndication Agent, the
Documentation Agent and the Co-Documentation Agent under, the Bridge Loan
Agreement or any of the other Loan Documents.

               (iii) Upon the conditions precedent set forth in this Amendment
being satisfied, this Amendment shall be construed as one with the Bridge Loan
Agreement, and the Bridge Loan Agreement shall, where the context requires, be
read and construed throughout so as to incorporate this Amendment.

          (b)  Fees and Expenses. Borrower acknowledges that all costs, fees
and expenses as described in Section 11.3(a) of the Bridge Loan Agreement
incurred by QUALCOMM, the Lenders, the Administrative Agent, the Syndication
Agent, the Documentation Agent and the Co-Documentation Agent, and in each case
its counsel, with respect to this Amendment and the documents and transactions
contemplated hereby shall be for the account of Borrower.

          (c)  Execution Counterparts; Effectiveness. This Amendment may be
executed in any number of counterparts, and by different parties hereto in
separate counterparts, each of which when so executed and delivered shall be
deemed an original, but all such counterparts taken together shall constitute
but one and the same instrument.

          (d)  Headings. Section and subsection headings in this Amendment are
included for convenience of reference only and shall not constitute a part of
this Amendment for any other purpose or be given any substantive effect.

                                       4

<PAGE>
        (e)  Severability. If any provision contained in or obligation under
this Amendment shall be invalid, illegal or unenforceable in any jurisdiction,
the validity, legality and enforceability of the remaining provisions or
obligations, or of such provision or obligation in any other jurisdiction, shall
not in any way be affected or impaired thereby.

        (f)  GOVERNING LAW: JURISDICTION. THIS AMENDMENT SHALL BE GOVERNED BY,
AND SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NEW YORK. EACH PARTY HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY SUBMITS, FOR
ITSELF AND ITS PROPERTY, TO THE NONEXCLUSIVE JURISDICTION OF THE SUPREME COURT
OF THE STATE OF NEW YORK SITTING IN NEW YORK COUNTY AND OF THE UNITED STATES
DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK, AND ANY APPELLATE COURT
FROM ANY THEREOF, FOR THE PURPOSES OF ALL LEGAL PROCEEDINGS ARISING OUT OF OR
RELATING TO THIS AMENDMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY, AND EACH OF
THE PARTIES HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY AGREES THAT ALL CLAIMS
IN RESPECT OF ANY SUCH ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN SUCH
NEW YORK STATE OR, TO THE EXTENT PERMITTED BY LAW, IN SUCH FEDERAL COURT. EACH
OF THE PARTIES HERETO AGREES THAT A FINAL JUDGMENT IN ANY SUCH ACTION OR
PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN OTHER JURISDICTIONS
(INCLUDING MEXICO) BY SUIT ON THE JUDGMENT OR IN ANY OTHER MANNER PROVIDED BY
LAW. NOTHING IN THIS AMENDMENT SHALL AFFECT ANY RIGHT THAT ADMINISTRATIVE AGENT
OR ANY LENDER MAY OTHERWISE HAVE TO BRING ANY ACTION OR PROCEEDING RELATING TO
THIS AMENDMENT AGAINST BORROWER OR ITS PROPERTIES IN THE COURTS OF ANY
JURISDICTION. EACH OF THE PARTIES HERETO IRREVOCABLY WAIVES, TO THE FULLEST
EXTENT PERMITTED BY LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE
LAYING OF THE VENUE OF ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT AND ANY CLAIM
THAT ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN
INCONVENIENT FORUM.

                                       5
<PAGE>
     IN WITNESS WHEREOF, the parties hereto have duly executed this Amendment
as of the date first above written.

THE BORROWER GROUP:

PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.

By:
    -----------------------------------

Printed Name:
              -------------------------

Title:
       --------------------------------

PEGASO TELECOMUNICACIONES, S.A. DE C.V.

By:
    -----------------------------------

Printed Name:
              -------------------------

Title:
       --------------------------------

PEGASO PCS, S.A. DE C.V.

By:
    -----------------------------------

Printed Name:
              -------------------------

Title:
       --------------------------------

PEGASO RECURSOS HUMANOS, S.A. DE C.V.

By:
    -----------------------------------

Printed Name:
              -------------------------

Title:
       --------------------------------
<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By: /s/ SUNEET GUPTA
    ------------------------------

Printed Name: SUNEET GUPTA
              --------------------

Title: VICE PRESIDENT
       ---------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By: /s/ HILLARY GOYAL
    ------------------------------

Printed Name: Hillary Goyal
              --------------------

Title: VP
       ---------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By:
    ------------------------------

Printed Name:
              --------------------

Title:
       ---------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By: /s/ PAUL K. STIMPFL
    ------------------------------

Printed Name: PAUL K. STIMPFL
              --------------------

Title: GROUP VICE PRESIDENT
       ---------------------------

By: /s/ [Signature Illegible]
    ------------------------------

Printed Name: [Illegible]
              --------------------

Title: ASSISTANT VICE PRESIDENT
       ---------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK
as Co-Documentation Agent

By:      /s/  SUZANNE M. MACKAY
    ------------------------------------

Printed Name: Suzanne M. MacKay
              --------------------------

Title:        Vice President
       ---------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

ABN AMRO BANK N.V.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SOCIETE GENERALE

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK
as Co-Documentation Agent

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:       /s/ SUNEET GUPTA
    ------------------------------------

Printed Name: Suneet Gupta
              --------------------------

Title:        Vice President
       ---------------------------------

ABN AMRO BANK N.V.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SOCIETE GENERALE

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK
as Co-Documentation Agent

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

ABN AMRO BANK N.V.

By:       /s/ PAUL K. STIMPFL
    ------------------------------------

Printed Name: Paul K. STIMPFL
              --------------------------

Title:        Group Vice President
       ---------------------------------

By:       /s/ [SIGNATURE ILLEGIBLE]
    ------------------------------------

Printed Name: [ILLEGIBLE]
              --------------------------

Title:        Assistant Vice President
       ---------------------------------

SOCIETE GENERALE

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK,
as Co-Documentation Agent

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

ABN AMRO BANK N.V.

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

By:
    ------------------------------------

Printed Name:
              --------------------------

Title:
       ---------------------------------

SOCIETE GENERALE

By:       /s/ HILLARY GOYAL
    ------------------------------------

Printed Name: Hillary Goyal
              --------------------------

Title:        VP
       ---------------------------------

<PAGE>
FLEET NATIONAL BANK

By: /s/ SUZANNE M. MacKAY
    ----------------------------------
Printed Name: Suzanne M. MacKay
              ------------------------
Title: Vice President
       -------------------------------

CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATED

By:
    ----------------------------------
Printed Name:
              ------------------------
Title:
       -------------------------------

<PAGE>
FLEET NATIONAL BANK

By:
   ---------------------------------
Printed Name:
             -----------------------
Title:
      ------------------------------

CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATION

By: QUENTIN E. LYLE
    --------------------------------
Printed Name: Quentin E. Lyle
              ----------------------
Title: Director, Finance
       -----------------------------

<PAGE>
                    THIRD AMENDMENT TO BRIDGE LOAN AGREEMENT

     This THIRD AMENDMENT TO BRIDGE LOAN AGREEMENT (this "Amendment"), dated as
of November 17, 2000, is entered into by PEGASO COMUNICACIONES Y SISTEMAS, S.A.
DE C.V., a sociedad anonima de capital variable organized under the laws of
Mexico ("Borrower"), PEGASO TELECOMUNICACIONES, S.A. DE  C.V., a sociedad
anonima de capital variable organized under the laws of Mexico ("Pegaso"),
PEGASO PCS, S.A. DE C.V., a sociedad anonima de capital variable organized under
the laws of Mexico ("Pegaso PCS"), PEGASO RECURSOS HUMANOS, S.A., DE C.V., a
sociedad anonima de capital variable organized under the laws of Mexico ("Pegaso
RH"), QUALCOMM INCORPORATED, a corporation organized under the laws of Delaware
("QUALCOMM"), and the Syndicated Lenders referred to in the below referenced
Bridge Loan Agreement (each Syndicated Lender, together with QUALCOMM, a
"Lender" and, collectively, "Lenders"), CITIBANK, N.A., a national banking
association, in its capacity as administrative agent for Lenders
("Administrative Agent"), SOCIETE GENERALE, as Syndication Agent, ABN AMRO BANK
N.V., as Documentation Agent and FLEET NATIONAL BANK, as Co-Documentation Agent,
under the Bridge Loan Agreement dated as of May 27, 1999 (as modified, amended,
supplemented or restated from time to time, the "Bridge Loan Agreement").
Capitalized terms used and not otherwise defined in this Amendment shall have
the same meanings in this Amendment as set forth in the Bridge Loan Agreement,
and the rules of interpretation set forth in Section 1.2 of the Bridge Loan
Agreement shall be applicable to this Amendment, mutatis mutandis, as if set
forth in this Amendment.

                                   RECITALS:

     A.   Borrower has requested that the Bridge Loan Agreement be amended to
(i) change the definitions of "Applicable Margin", "Availability Period",
"Required Syndicated Lenders", "Scheduled Maturity Date", "Total Vendor Working
Capital Commitment" and "Total Working Capital Commitment"; and (ii) increase
the amount of the Vendor Working Capital Commitment.

     B.   QUALCOMM, the Lenders, the Administrative Agent, the Syndication
Agent, the Documentation Agent and the Co-Documentation Agent have agreed to
amend the Bridge Loan Agreement upon the terms and conditions set forth in this
Amendment.

     NOW, THEREFORE, in consideration of the foregoing, the mutual covenants
and agreements set forth below and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties agree as
follows:

     Section 1. Amendment. Subject to the satisfaction of the conditions
precedent set forth in Section 2, the Bridge Loan Agreement is amended as
follows:

     (a) Section 1.1 of the Bridge Loan Agreement is amended by substituting
for the definition of "Applicable Margin", the following new definition of
"Applicable Margin":

<PAGE>
     "Applicable Margin" shall mean (i) for Eurodollar Loans, six percent (6%);
and (ii) for Base Rate Loans, five percent (5%); provided that in each case,
the Applicable Margin shall increase by one-half of one percent (0.5%) on each
Interest Adjustment Date; provided further that for Vendor Working Capital
Loans which are Eurodollar Loans, the Applicable Margin shall remain at six
percent (6%) without adjustment for an increase by one-half of one percent
(0.5%) on each Interest Adjustment Date.

     (b)  Section 1.1 of the Bridge Loan Agreement is amended by substituting
for the definition of "Availability Period", the following new definition of
"Availability Period":

     "Availability Period" shall mean, for any Lender, (i) with respect to such
Lender's Syndicated Working Capital Commitment, the period from the Closing
Date until the Commitment Termination Date applicable to the Syndicated Working
Capital Facility, (ii) with respect to such Lender's Vendor Working Capital
Commitment, the period from the Closing Date until the Commitment Termination
Date applicable to the Vendor Working Capital Facility, (iii) with respect to
such Lender's Term Loan Commitment, the period from the Closing Date until the
Commitment Termination Date applicable to the Syndicated Working Capital
Facility, and (iv) with respect to such Lender's Capitalized Interest
Commitment,the period from the Closing Date until the Commitment Termination
Date applicable to the Capitalized Interest Facility.

     (c)  Section 1.1 of the Bridge Loan Agreement is amended by substituting
for the definition of "Required Syndicated Lenders", the following new
definition of "Required Syndicated Lenders":

     "Required Syndicated Lenders" shall mean, at any time, the Syndicated
Lenders having Exposures under the Syndicated Working Capital Facility and
unused Working Capital Commitments (or, following the Commitment Termination
Date, Term Loans) representing at least 51% of the sum of the total Exposures
under the Syndicated Working Capital Facility and unused Working Capital
Commitments (or, following the Commitment Termination Date, Term Loans) of all
Syndicated Lenders at such time; provided, however, that references to
"Required Syndicated Lenders" shall be deemed to be references to "Required
Lenders" (and clause (a) of the definition of "Required Lenders" shall be
disregarded) if (i) the Exposures of all Syndicated Lenders shall have been
reduced to zero, (ii) all Syndicated Working Capital Commitments, all Term Loan
Commitments and all LC Exposures shall have been terminated, (iii) all
Syndicated Working Capital Loans and all Term Loans shall have been repaid,
(iv) no Letters of Credit shall be outstanding, and (v) all other Obligations
payable to any Syndicated Lender or to the Administrative Agent shall have been
paid in full.

     (d)  Section 1.1 of the Bridge Loan Agreement is amended by substituting
for the definition of "Scheduled Maturity Date", the following new definition of
"Scheduled Maturity Date":

     "Scheduled Maturity Date" shall mean June 15, 2001.

                                       2
<PAGE>
                (e) Section 1.1 of the Bridge Loan Agreement is amended by
substituting for the definition of "Total Vendor Working Capital Commitment",
the following new definition of "Total Vendor Working Capital Commitment":

                "Total Vendor Working Capital Commitment" shall mean One Hundred
Twenty-Five Million Dollars ($125,000,000), as such amount may be reduced
pursuant to Section 2.9(f).

                (f) Section 1.1 of the Bridge Loan Agreement is amended by
substituting for the definition of "Total Working Capital Commitment", the
following new definition of "Total Working Capital Commitment":

                "Total Working Capital Commitment" shall mean the sum of the
Total Syndicated Working Capital Commitment and the total Vendor Working Capital
Commitment, which shall be an aggregate amount equal to Three Hundred Million
Dollars ($300,000,000).

                (g) Section 2.6(a) of the Bridge Loan Agreement is amended by
replacing the words prior to the first "; provided" with the following:

                To request a Syndicated Working Capital Loan Borrowing or a Term
Loan Borrowing for the purposes described in Section 2.1(d)(ii), Borrower shall
notify Administrative Agent of such request by telephone (a) in the case of a
Eurodollar Borrowing, not later than 11:00 a.m., New York City time, three (3)
Business Days before the date of the proposed Borrowing, or (b) in the case of a
Base Rate Borrowing, not later than 11:00 a.m., New York City time, one (1)
Business Day before the date of the proposed Borrowing.

                (h) Section 2.6(a) of the Bridge Loan Agreement is amended by
the addition of the following sentence after the first sentence thereof:

                To request a Vendor Working Capital Loan Borrowing, Borrower
shall, regardless of whether such Borrowing is to be a Eurodollar Borrowing of a
Base Rate Borrowing, notify Administrative Agent of such request by telephone,
(x) in the case of a Vendor Working Capital Loan Borrowing in an amount less
than $20,000,000, not later than 11:00 a.m., New York City time, five (5)
Business Days before the date of the proposed Borrowing, or (y) in the case of a
Vendor Working Capital Loan Borrowing in an amount equal to or greater than
$20,000,000, not later than 11:00 a.m. New York City time, ten (10) Business
Days before the date of the proposed Borrowing, subject to Section 2.7; provided
that Borrower may not request more than one Vendor Working Capital Loan
Borrowing in any calendar month.

                (i) Section 2.7 of the Bridge Loan Agreement is amended by
inserting the words "; provided that with respect to any Vendor Working Capital
Loan to be made by a Vendor Working Capital Lender in excess of $40,000,000,
such Vendor Working Capital Loan shall be made subject to the availability of
such funds to such Vendor Working Capital Lender" at the end of the first
sentence thereof.

                (j) Schedule 2.2 of the Bridge Loan is hereby replaced in its
entirety by Amended Schedule 2.2 as set forth in Appendix 1 to this Agreement.

                                       3
<PAGE>
     Section 2. Conditions to Effectiveness. This Amendment shall become
effective upon the satisfaction of all of the following conditions precedent
(the date of satisfaction of all such conditions being referred to as the
"Amendment Effective Date"):

     (a)  On or before the Amendment Effective Date, each member of the
Borrower Group shall deliver to the Administrative Agent, by facsimile, copies
of (with sufficient originally executed copies for each Lender to be delivered
by overnight courier service) the following described documents (each of which
shall be reasonably satisfactory in form and substance to the Administrative
Agent, acting on behalf of the Lenders, and its counsel):

          (i)   this Amendment, duly executed and delivered by the parties;

          (ii)  a confirmation of the Pegaso Guaranty Agreement, duly executed
and delivered by each of Pegaso, Pegaso PCS and Pegaso RH, as guarantors under
the Pegaso Guaranty Agreement, in favor of Administrative Agent for the benefit
of itself and the other Syndicated Lenders;

          (iii) new Pegares to reflect the new Scheduled Maturity Date; and

          (iv)  such other documents, instruments, approvals or opinions as the
Administrative Agent may reasonably request;

     (b)  On or before the Amendment Effective Date, QUALCOMM shall deliver to
the Administrative Agent, by facsimile, copies of (with sufficient originally
executed copies for each Lender to be delivered by overnight courier service)
the following described documents (each of which shall be reasonably
satisfactory in form and substance to the Administrative Agent, acting on behalf
of the Lenders, and its counsel):

          (i)   a confirmation of the QUALCOMM Guaranty, duly executed and
delivered by QUALCOMM, as guarantor under the QUALCOMM Guaranty, in favor of
Administrative Agent for the benefit of itself and the other Syndicated
Lenders; and

          (ii)  such other documents, instruments, approvals or opinions as the
Administrative Agent may reasonably request;

     (c)  Administrative Agent (for its own account or for the account of the
other Syndicated Lenders, as the case may be) shall have received all fees and
other amounts due and payable on or prior to the Amendment Effective Date,
including: (i) to the extent invoiced, reimbursement or payment of all
out-of-pocket expenses required to be reimbursed or paid by Borrower under or
in connection with this Amendment and (ii) the extension fees in the amount of
$54,687.50 payable to each Syndicated Lender;

     (d)  On or before the Amendment Effective Date, all corporate, partnership
and other proceedings taken by each member of the Borrower Group or to be taken
in connection with the transactions contemplated by this Amendment, and all
documents incidental to such transactions, shall be reasonably satisfactory in
form and substance to the Administrative Agent and its counsel, and the
Administrative Agent and such counsel shall have received all such

                                       4
<PAGE>
counterpart originals or certified copies of such documents, opinions,
certificates, and evidence as they may reasonably request;

                (e) The representations and warranties set forth in Section 3 of
this Amendment shall be true and correct as of the Amendment Effective Date; and

                (f) All approvals, authorizations, filings or Permits necessary
for the execution, delivery and performance of this Amendment shall have been
made, taken or obtained from or with any Governmental Authority, and no order,
statutory rule, regulation, executive order, decree, judgment or injunction
shall have been enacted, entered, issued, promulgated or enforced by any
Governmental Authority which prohibits or restricts the transactions
contemplated by this Amendment, nor shall any action have been commenced or
threatened seeking any injunction or any restraining or other order to prohibit,
restrain, invalidate or set aside the transactions contemplated by this
Amendment.

                Section 3. Borrower's Representations and Warranties. In order
to induce the Lenders to enter into this Amendment and to amend the Bridge Loan
Agreement in the manner provided in this Amendment, Borrower represents and
warrants to each Lender, the Administrative Agent, the Syndication Agent, the
Documentation Agent and the Co-Documentation Agent as follows:

                (a) Corporate Power and Authority. Borrower has all requisite
corporate power and authority to enter into this Amendment and to carry out the
transactions contemplated by, and perform its obligations under, the Bridge Loan
Agreement as amended by this Amendment (the "Amended Agreement").

                (b) Authorization of Agreements. The execution and delivery of
this Amendment and the performance of the Amended Agreement have been duly
authorized by all necessary corporate and, if required, stockholder action of
Borrower, and this Amendment has been duly executed and delivered by Borrower.

                (c) Enforceability. The Amended Agreement constitutes the legal,
valid and binding obligation of Borrower, enforceable against Borrower in
accordance with its terms, except as may be limited by bankruptcy, insolvency or
other similar laws affecting the enforcement of creditors' rights in general.
The enforceability of Borrower's obligations thereunder is subject to general
principles of equity (regardless of whether such enforceability is considered in
a proceeding in equity or at law).

                (d) No Conflict. The execution and delivery by Borrower of this
Amendment and the performance by Borrower of the Amended Agreement do not and
will not (i) contravene, in any material respect, any provision of any law,
regulation, decree, ruling, judgment or order that is (A) applicable to Borrower
or any of its properties or other assets and (B) in effect when this
representation and warranty is made, (ii) result in a breach of or constitute a
default under its charter documents or any other material agreement, indenture,
lease or instrument binding upon Borrower or any of its properties or other
assets and (iii) result in the creation or imposition of any Liens on any
property (other than Permitted Liens) of Borrower.

                                       5
<PAGE>
            (e)   Permits. The execution, delivery and performance by Borrower
of this Amendment do not and will not require any Permit and do not result in
the loss or impairment of any Permit previously obtained in connection with the
execution, delivery and performance of the Loan Documents or the acquisition,
construction, ownership, maintenance or operation of the System.

            (f)   Representations and Warranties in the Bridge Loan Agreement;
Defaults. Borrower confirms that as of the Amendment Effective Date the
representations and warranties contained in Section 6 of the Bridge Loan
Agreement are (before and after giving effect to this Amendment) true and
correct and that no Default or Event of Default has occurred.

            Section 4.  Miscellaneous.

            (a)   Reference to and Effect on the Bridge Loan Agreement and the
other Loan Documents.

                  (i)  The Bridge Loan Agreement and the other Loan Documents
as specifically amended by this Amendment shall remain in full force and effect
and are hereby ratified and confirmed.

                  (ii)  The execution, delivery and performance of this
Amendment shall not, except as expressly provided in this Amendment, constitute
a waiver of any provision of, or operate as a waiver of any right, power or
remedy of QUALCOMM, the Lenders, the Administrative Agent, the Syndication
Agent, the Documentation Agent and the Co-Documentation Agent under, the Bridge
Loan Agreement or any of the other Loan Documents.

                  (iii) Upon the conditions precedent set forth in this
Amendment being satisfied, this Amendment shall be construed as one with the
Bridge Loan Agreement, and the Bridge Loan Agreement shall, where the context
requires, be read and construed throughout so as to incorporate this Amendment.

            (b)   Fees and Expenses. Borrower acknowledges that all costs, fees
and expenses described in Section 11.3(a) of the Bridge Loan Agreement incurred
by QUALCOMM, the Lenders, the Administrative Agent, the Syndication Agent, the
Documentation Agent and the Co-Documentation Agent, and in each case its
counsel, with respect to this Amendment and the documents and transactions
contemplated hereby shall be for the account of Borrower.

            (c)   Execution in Counterparts; Effectiveness. This Amendment may
be executed in any number of counterparts, and by different parties hereto in
separate counterparts, each of which when so executed and delivered shall be
deemed an original, but all such counterparts taken together shall constitute
but one and the same instrument.

            (d)   Headings. Section and subsection headings in this Amendment
are included for convenience of reference only and shall not constitute a part
of this Amendment for any other purpose or be given any substantive effect.

                                       6
<PAGE>
            (e)   Severability. If any provision contained in or obligation
under this Amendment shall be invalid, illegal or unenforceable in any
jurisdiction, the validity, legality and enforceability of the remaining
provisions or obligations, or of such provision or obligation in any other
jurisdiction, shall not in any way be affected or impaired thereby.

            (f)   GOVERNING LAW; JURISDICTION. THIS AMENDMENT SHALL BE GOVERNED
BY, AND SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE
STATE OF NEW YORK. EACH PARTY HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY
SUBMITS, FOR ITSELF AND ITS PROPERTY, TO THE NONEXCLUSIVE JURISDICTION OF THE
SUPREME COURT OF THE STATE OF NEW YORK SITTING IN NEW YORK COUNTY AND OF THE
UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK, AND ANY
APPELLATE COURT FROM ANY THEREOF, FOR THE PURPOSES OF ALL LEGAL PROCEEDINGS
ARISING OUT OF OR RELATING TO THIS AMENDMENT OR THE TRANSACTIONS CONTEMPLATED
HEREBY, AND EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY
AGREES THAT ALL CLAIMS IN RESPECT OF ANY SUCH ACTION OR PROCEEDING MAY BE HEARD
AND DETERMINED IN SUCH NEW YORK STATE OR, TO THE EXTENT PERMITTED BY LAW, IN
SUCH FEDERAL COURT. EACH OF THE PARTIES HERETO AGREES THAT A FINAL JUDGMENT IN
ANY SUCH ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN OTHER
JURISDICTIONS (INCLUDING MEXICO) BY SUIT ON THE JUDGMENT OR IN ANY OTHER MANNER
PROVIDED BY LAW. NOTHING IN THIS AMENDMENT SHALL AFFECT ANY RIGHT THAT
ADMINISTRATIVE AGENT OR ANY LENDER MAY OTHERWISE HAVE TO BRING ANY ACTION OR
PROCEEDING RELATING TO THIS AMENDMENT AGAINST BORROWER OR ITS PROPERTIES IN THE
COURTS OF ANY JURISDICTION. EACH OF THE PARTIES HERETO IRREVOCABLY WAIVES, TO
THE FULLEST EXTENT PERMITTED BY LAW, ANY OBJECTION WHICH IT MAY NOW OR
HEREAFTER HAVE TO THE LAYING OF THE VENUE OF ANY SUCH PROCEEDING BROUGHT IN
SUCH A COURT AND ANY CLAIM THAT ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT HAS
BEEN BROUGHT IN AN INCONVENIENT FORUM.

                                       7
<PAGE>
                                   Appendix 1

                                                            Amended Schedule 2.2
                                                                       to Bridge
                                                                  Loan Agreement

                       VENDOR WORKING CAPITAL COMMITMENTS

VENDOR LENDER                                          COMMITMENT

QUALCOMM Incorporated                                $125,000,000

<PAGE>
     IN WITNESS WHEREOF, the parties hereto have duly executed this Amendment
as of the date first above written.

THE BORROWER GROUP:

PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

PEGASO TELECOMUNICACIONES, S.A. DE C.V.

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

PEGASO PCS, S.A. DE C.V.

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

PEGASO RECURSOS HUMANOS, S.A. DE C.V.

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------
<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK,
as Co-Documentation Agent

By: /s/ SUZANNE M. MACKAY
   --------------------------------------
Printed Name:  Suzanne M. MacKay
             ----------------------------
Title:  Vice President
      -----------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

ABN AMRO BANK N.V.

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

SOCIETE GENERALE

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------
<PAGE>
FLEET NATIONAL BANK

By:  /s/ SUZANNE M. MACKAY
   -------------------------------------
Printed Name:  Suzanne M. MacKay
             ---------------------------
Title:  Vice President
      ----------------------------------

VENDOR WORKING CAPITAL LENDER AND
CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATED

By:
   -------------------------------------
Printed Name:
             ---------------------------
Title:
      ----------------------------------
<PAGE>
FLEET NATIONAL BANK

By:
   -------------------------------------
Printed Name:
             ---------------------------
Title:
      ----------------------------------

VENDOR WORKING CAPITAL LENDER AND
CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATED

By:  /s/ PAUL FISKNESS
   -------------------------------------
Printed Name:  Paul Fiskness
             ---------------------------
Title:  Vice President, Project Finance
      ----------------------------------
          and Direct Investments
<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By:
   -------------------------------------
Printed Name:
             ---------------------------
Title:
      ----------------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By:
   -------------------------------------
Printed Name:
             ---------------------------
Title:
      ----------------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By:  /s/ MITSOO IRAVANI
   -------------------------------------
Printed Name:  MITSOO IRAVANI
             ---------------------------
Title:  ASSISTANT VICE PRESIDENT
      ----------------------------------

By:  /s/ ELLEN M. COLEMAN
   -------------------------------------
Printed Name:  ELLEN M. COLEMAN
             ---------------------------
Title:  GROUP VICE PRESIDENT
      ----------------------------------
<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK,
as Co-Documentation Agent

By:
    -----------------------------------
Printed Name:
              -------------------------
Title:
       --------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
    -----------------------------------
Printed Name:
              -------------------------
Title:
       --------------------------------

ABN AMRO BANK N.V.

By: /s/ MITSOO IRAVANI
    -----------------------------------
Printed Name: MITSOO IRAVANI
              -------------------------
Title: ASSISTANT VICE PRESIDENT
       --------------------------------

By: /s/ ELLEN M. COLEMAN
    -----------------------------------
Printed Name: ELLEN M. COLEMAN
              -------------------------
Title: GROUP VICE PRESIDENT
       --------------------------------

SOCIETE GENERALE

By:
    -----------------------------------
Printed Name:
              -------------------------
Title:
       --------------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK,
as Co-Documentation Agent

By:
    -----------------------------------
Printed Name:
              -------------------------
Title:
       --------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
    -----------------------------------
Printed Name:
              -------------------------
Title:
       --------------------------------

ABN AMRO BANK N.V.

By:
    -----------------------------------
Printed Name:
              -------------------------
Title:
       --------------------------------

By:
    -----------------------------------
Printed Name:
              -------------------------
Title:
       --------------------------------

SOCIETE GENERALE

By: /s/ RICHARD KNOWLTON
    -----------------------------------
Printed Name: Richard Knowlton
              -------------------------
Title: Director
       --------------------------------

<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By:  /s/ RICHARD KNOWLTON
   --------------------------------------
Printed Name: Richard Knowlton, Director
             ----------------------------
Title:
      -----------------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK,
as Co-Documentation Agent

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By: /s/ TERENCE P. BERRY                                TERENCE BERRY
   --------------------------------------           Relationship Manager
Printed Name: Terence Berry                      GCB Media & Communications
             ----------------------------                 399P/8/5
Title:        AVP                                      (212) 559-3009
      -----------------------------------

ABN AMRO BANK N.V.

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

SOCIETE GENERALE

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By:  /s/ TERENCE P. BERRY                                TERENCE BERRY
   --------------------------------------            Relationship Manager
Printed Name:  Terence Berry                      GCB Media & Communications
             ----------------------------                  399P/8/5
Title:         AVP                                      (212) 559-3009
      -----------------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

By:
   --------------------------------------
Printed Name:
             ----------------------------
Title:
      -----------------------------------

<PAGE>

                   FOURTH AMENDMENT TO BRIDGE LOAN AGREEMENT

     This FOURTH AMENDMENT TO BRIDGE LOAN AGREEMENT (this "Amendment"), dated
as of March 22, 2001, is entered into by PEGASO COMUNICACIONES Y SISTEMAS,
S.A. DE C.V., a sociedad anonima de capital variable organized under the laws
of Mexico ("Borrower"), PEGASO TELECOMUNICACIONES, S.A., DE C.V., a sociedad
anonima de capital variable organized under the laws of Mexico ("Pegaso"),
PEGASO PCS, S.A. DE C.V., a sociedad anonima de capital variable organized
under the laws of Mexico ("Pegaso PCS"), PEGASO RECURSOS HUMANOS, S.A., DE
C.V., a sociedad anonima de capital variable organized under the laws of Mexico
("Pegaso RH"), QUALCOMM INCORPORATED, a corporation organized under the laws of
Delaware ("QUALCOMM"), and the Syndicated Lenders referred to in the below
referenced Bridge Loan Agreement (each Syndicated Lender, together with
QUALCOMM, a "Lender" and, collectively, "Lenders"), CITIBANK, N.A., a national
banking association, in its capacity as administrative agent for Lenders
("Administrative Agent"), SOCIETE GENERALE, as Syndication Agent, ABN AMRO BANK
N.V., as Documentation Agent and FLEET NATIONAL BANK, as Co-Documentation
Agent, under the Bridge Loan Agreement dated as of May 27, 1999 (as modified,
amended, supplemented or restated from time to time, the "Bridge Loan
Agreement"). Capitalized terms used and not otherwise defined in this Amendment
shall have the same meanings in this Amendment as set forth in the Bridge Loan
Agreement, and the rules of interpretation set forth in Section 1.2 of the
Bridge Loan Agreement shall be applicable to this Amendment, mutatis mutandis,
as if set forth in this amendment.

                                   RECITALS:

     A.   The Bridge Loan Agreement has been amended pursuant to (i) the First
Amendment to the Bridge Loan Agreement, dated as of February 8, 2000 (ii) the
Second Amendment to the Bridge Loan Agreement, dated as of August 22, 2000, and
(iii) the Third Amendment to the Bridge Loan Agreement, dated as of November
17, 2000.

     B.   Borrower has requested that the Bridge Loan Agreement be amended to
(i) change the definitions of "Total Capitalized Interest Commitment", "Total
Vendor Working Capital Commitment" and "Total Working Capital Commitment"; and
(ii) increase the amount of the Capitalized Interest Commitment and the Vendor
Working Capital Commitment.

     C.   QUALCOMM, the Lenders, the Administrative Agent, the Syndication
Agent, the Documentation Agent and the Co-Documentation Agent have agreed to
amend the Bridge Loan Agreement upon the terms and conditions set forth in this
Agreement.

     NOW THEREFORE, in consideration of the foregoing, the mutual covenants and
agreement set forth below and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties agree as
follows:

<PAGE>
        Section 1. Amendment. Subject to the satisfaction of the conditions
precedent set forth in Section 2, the Bridge Loan Agreement is amended as
follows:

        (a)  Section 1.1 of the Bridge Loan Agreement is amended by substituting
for the definition of "Total Capitalized Interest Commitment", the following new
definition of "Total Capitalized Interest Commitment":

        "Total Capitalized Interest Commitment" shall mean Forty-Nine Million
Dollars ($49,000,000), as such amount may be increased pursuant to Section
2.12(d).

        (b)  Section 1.1 of the Bridge Loan Agreement is amended by substituting
for the definition of "Total Vendor Working Capital Commitment", the following
new definition of "Total Vendor Working Capital Commitment":

        "Total Vendor Working Capital Commitment" shall mean One Hundred
Eighty-Five Million Dollars ($185,000,000), as such amount may be reduced
pursuant to Section 2.9(f).

        (c)  Section 1.1 of the Bridge Loan Agreement is amended by substituting
for the definition of "Total Working Capital Commitment", the following new
definition of "Total Working Capital Commitment":

        "Total Working Capital Commitment" shall mean the sum of the Total
Syndicated Working Capital Commitment and the Total Vendor Working Capital
Commitment, which shall be an aggregate amount equal to Three Hundred Sixty
Million Dollars ($360,000,000).

        (d)  Schedule 2.2 of the Bridge Loan Agreement is hereby replaced in its
entirety by Amended Schedule 2.2 as set forth in Appendix 1 to this Agreement.

        (e)  Schedule 2.3 of the Bridge Loan Agreement is hereby replaced in its
entirety by Amended Schedule 2.3 as set forth in Appendix 2 to this Agreement.

        Section 2. Conditions to Effectiveness. This Amendment shall become
effective upon the satisfaction of all of the following conditions precedent
(the date of satisfaction of all such conditions being referred to as the
"Amendment Effective Date"):

        (a)  On or before the Amendment Effective Date, each member of the
Borrower Group shall deliver to the Administrative Agent, by facsimile, copies
of (with sufficient originally executed copies for each Lender to be delivered
by overnight courier service) the following described documents (each of which
shall be reasonably satisfactory in form and substance to the Administrative
Agent, acting on behalf of the Lenders, and its counsel):

             (i)  this Amendment, duly executed and delivered by the parties;

             (ii) a confirmation of the Pegaso Guaranty Agreement, duly executed
        and delivered by each of Pegaso, Pegaso PCS and Pegaso RH, as guarantors
        under the Pegaso Guaranty Agreement, in favor of Administrative Agent
        for the benefit of itself and the other Syndicated Lenders; and

                                       2

<PAGE>
                (iii) such other documents, instruments, approvals or opinions
as the Administrative Agent may reasonably request;

        (b) On or before the Amendment Effective Date, QUALCOMM shall deliver to
the Administrative Agent, by facsimile, copies of (with sufficient originally
executed copies for each Lender to be delivered by overnight courier service)
the following described documents (each of which shall be reasonably
satisfactory in form and substance to the Administrative Agent, acing on behalf
of the Lenders, and its counsel):

                (i) a confirmation of the QUALCOMM Guaranty, duly executed and
delivered by QUALCOMM, as guarantor under the QUALCOMM Guaranty, in favor of
Administrative Agent for the benefit of itself and the other Syndicated Lenders;
and

                (ii) such other documents, instruments, approvals or opinions as
the Administrative Agent may reasonably request;

        (c) Administrative Agent (for its own account or for the account of the
other Syndicated Lenders, as the case may be) shall have received all fees and
other amounts due and payable on or prior to the Amendment Effective Date,
including, to the extent invoiced, reimbursement or payment of all out-of-pocket
expenses required to be reimbursed or paid by Borrower under or in connection
with this Amendment;

        (d) On or before the Amendment Effective Date, all corporate,
partnership and other proceedings taken by each member of the Borrower Group or
to be taken in connection with the transactions contemplated by this Amendment,
and all documents incidental to such transactions, shall be reasonably
satisfactory in form and substance to the Administrative Agent and its counsel,
and the Administrative Agent and such counsel shall have received all such
counterpart originals or certified copies of such documents, opinions,
certificates, and evidence as they may reasonably request;

        (e) The representations and warranties set forth in Section 3 of this
Amendment shall be true and correct as of the Amendment Effective Date; and

        (f) All approvals, authorizations, filings or Permits necessary for the
execution, delivery and performance of this Amendment shall have been made,
taken or obtained from or with any Governmental Authority, and no order,
statutory rule, regulation, executive order, decree, judgment or injunction
shall have been enacted, entered, issued, promulgated or enforced by an
Governmental Authority which prohibits or restricts the transactions
contemplated by this Amendment, nor shall any action have been commenced or
threatened seeking any injunction or any restraining or other order to prohibit,
restrain, invalidate or set aside the transactions contemplated by this
Amendment.

        Section 3. Borrower Group Representations and Warranties. In order to
induce the Lenders to enter into this Amendment and to amend the Bridge Loan
Agreement in the manner provided in this Amendment, each member of the Borrower
Group represents and

                                       3
<PAGE>

warrants, as to itself, to each Lender, the Administrative Agent, the
Syndication Agent, the Documentation Agent and the Co-Documentation Agent as
follows:

     (a)  Corporate Power and Authority. Such member of the Borrower Group has
all requisite corporate power and authority to enter into this Amendment and to
carry out the transactions contemplated by, and perform its obligations under,
the Bridge Loan Agreement as amended by this Amendment (the "Amended
Agreement").

     (b)  Authorization of Agreements. The execution and delivery of this
Amendment and the performance of the Amended Agreement have been duly
authorized by all necessary corporate and, if required, stockholder action of
the Borrower Group, and this Amendment has been duly executed and delivered by
the Borrower Group.

     (c)  Enforceability. The Amended Agreement constitutes the legal, valid
and binding obligation of each member of the Borrower Group, enforceable
against such member of the Borrower Group in accordance with its terms, except
as may be limited by bankruptcy, insolvency or other similar laws affecting the
enforcement of creditors' rights in general. The enforceability of the Borrower
Group's obligations thereunder is subject to general principles of equity
(regardless of whether such enforceability is considered in a proceeding in
equity or at law).

     (d)  No Conflict. The execution and delivery by each member of the
Borrower Group of this Amendment and the performance by such member of the
Borrower Group of the Amended Agreement do not and will not (i) contravene, in
any material respect, any provision of any law, regulation, decree, ruling,
judgment or order that is (A) applicable to such member of the Borrower Group
or any of its properties or other assets and (B) in effect when this
representation and warranty is made, (ii) result in a breach of or constitute a
default under its charter documents or any other material agreement, indenture,
lease or instrument binding upon such member of the Borrower Group or any of
its properties or other assets and (iii) result in the creation or imposition
of any Liens on any property (other than Permitted Liens) of the Borrower Group.

     (e)  Permits. The execution, delivery and performance by each member of
the Borrower Group of this Amendment do not and will not require any Permit and
do not result in the loss or impairment of any Permit previously obtained in
connection with the execution, delivery and performance of the Loan Documents
or the acquisition, construction, ownership, maintenance or operation of the
System.

     (f)  Representations and Warranties in the Bridge Loan Agreement;
Defaults. Each member of the Borrower Group confirms that as of the Amendment
Effective Date the representations and warranties contained in Section 6 of the
Bridge Loan Agreement are (before and after giving effect to this Amendment)
true and correct and that no Default or Event of Default has occurred.

                                       4
<PAGE>
     Section 4. Miscellaneous.

     (a) Reference to and Effect on the Bridge Loan Agreement and the other
Loan Documents.

         (i)    The Bridge Loan Agreement and the Other Loan Documents as
specifically amended by this Amendment shall remain in full force and effect and
are hereby ratified and confirmed.

         (ii)   The execution, delivery and performance of this Amendment shall
not, except as expressly provided in this Amendment, constitute a waiver of any
provision of, or operate as a waiver of any right, power or remedy of QUALCOMM,
the Lenders, the Administrative Agent, the Syndication Agent, the Documentation
Agent and the Co-Documentation Agent under, the Bridge Loan Agreement or any of
the other Loan Documents.

          (iii) Upon the conditions precedent set forth in this Amendment being
satisfied, this Amendment shall be construed as one with the Bridge Loan
Agreement, and the Bridge Loan Agreement shall, where the context requires, be
read and construed throughout so as to incorporate this Amendment.

     (b)  Fees and Expenses. Borrower acknowledges that all costs, fees and
expenses as described in Section 11.3(a) of the Bridge Loan Agreement incurred
by QUALCOMM, the Lenders, the Administrative Agent, the Syndication Agent, the
Documentation Agent and the Co-Documentation Agent, and in each case its
counsel, with respect to this Amendment and the documents and transactions
contemplated hereby shall be for the account of Borrower.

     (c)  Execution in Counterparts; Effectiveness. This Amendment may be
executed in any number of counterparts, and by different parties hereto in
separate counterparts; each of which when so executed and delivered shall be
deemed an original, but all such counterparts taken together shall constitute
but one and the same instrument.

     (d)  Headings. Section and subsection headings in this Amendment are
included for convenience of reference only and shall not constitute a part of
this Amendment for any other purpose or be given any substantive effect.

     (e)  Severability. If any provision contained in or obligation under this
Amendment shall be invalid, illegal or unenforceable in any jurisdiction, the
validity, legality and enforceability of the remaining provisions or
obligations, or of such provision or obligation in any jurisdiction, shall not
in any way be affected or impaired thereby.

     (f)  GOVERNING LAW; JURISDICTION. THIS AMENDMENT SHALL BE GOVERNED BY, AND
SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF
NEW YORK. EACH PARTY HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY SUBMITS, FOR
ITSELF AND

                                       5

<PAGE>
ITS PROPERTY, TO THE NONEXCLUSIVE JURISDICTION OF THE SUPREME COURT OF THE STATE
OF NEW YORK SITTING IN NEW YORK COUNTY AND OF THE UNITED STATES DISTRICT COURT
FOR THE SOUTHERN DISTRICT OF NEW YORK, AND ANY APPELLATE COURT FROM ANY THEREOF,
FOR THE PURPOSES OF ALL LEGAL PROCEEDINGS ARISING OUT OF OR RELATING TO THIS
AMENDMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY, AND EACH OF THE PARTIES
HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY AGREES THAT ALL CLAIMS IN RESPECT
OF ANY SUCH ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN SUCH NEW YORK
STATE OR, TO THE EXTENT PERMITTED BY LAW, IN SUCH FEDERAL COURT. EACH OF THE
PARTIES HERETO AGREES THAT A FINAL JUDGMENT IN ANY SUCH ACTION OR PROCEEDING
SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN OTHER JURISDICTIONS (INCLUDING
MEXICO) BY SUIT ON THE JUDGMENT OR IN ANY OTHER MANNER PROVIDED BY LAW. NOTHING
IN THIS AMENDMENT SHALL AFFECT ANY RIGHT THAT ADMINISTRATIVE AGENT OR ANY LENDER
MAY OTHERWISE HAVE TO BRING ANY ACTION OR PROCEEDING RELATING TO THIS AMENDMENT
AGAINST BORROWER OR ITS PROPERTIES IN THE COURTS OF ANY JURISDICTION. EACH OF
THE PARTIES HERETO IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY LAW,
ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF THE VENUE OF
ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT AND ANY CLAIM THAT ANY SUCH
PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.

                                       6
<PAGE>

                                   Appendix 1

                                                            Amended Schedule 2.2
                                                                       to Bridge
                                                                  Loan Agreement

                       VENDOR WORKING CAPITAL COMMITMENTS

<Table>
<Caption>
VENDOR LENDER                    COMMITMENT
-------------                   ------------
<S>                             <C>
QUALCOMM Incorporated           $185,000,000
</Table>

<PAGE>

                                   Appendix 2

                                                            Amended Schedule 2.3
                                                                       to Bridge
                                                                  Loan Agreement

                        CAPITALIZED INTEREST COMMITMENTS

<Table>
<Caption>
VENDOR LENDER                    COMMITMENT
-------------                   ------------
<S>                             <C>
QUALCOMM Incorporated           $49,000,000
</Table>

<PAGE>
        IN WITNESS WHEREOF, the parties hereto have duly executed this
Amendment as of the date first above written.

THE BORROWER GROUP:

PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

PEGASO TELECOMUNICACIONES, S.A. DE C.V.

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

PEGASO PCS, S.A. DE C.V.

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

PEGASO RECURSOS HUMANOS, S.A. DE C.V.

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

<PAGE>
ADMINISTRATIVE AGENT:

CITIBANK, N.A.
as Administrative Agent

By: /s/ MARJORIE FUTORNICK
   ---------------------------------------
Printed Name: MARJORIE FUTORNICK
             -----------------------------
Title: Vice President
      ------------------------------------

SYNDICATION AGENT:

SOCIETE GENERALE,
As Syndication Agent

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------
<PAGE>

ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By:__________________________
Printed Name:________________
Title:_______________________

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By: /s/ RICHARD KNOWLTON
   ---------------------------
Printed Name: Richard Knowlton
Title: Director

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By:__________________________
Printed Name:________________
Title:_______________________

By:__________________________
Printed Name:________________
Title:_______________________
<PAGE>

ADMINISTRATIVE AGENT:

CITIBANK, N.A.,
as Administrative Agent

By:__________________________
Printed Name:________________
Title:_______________________

SYNDICATION AGENT:

SOCIETE GENERALE,
as Syndication Agent

By:__________________________
Printed Name:________________
Title:_______________________

DOCUMENTATION AGENT:

ABN AMRO BANK N.V.,
as Documentation Agent

By: /s/ DAVID CARRINGTON
   ------------------------------
Printed Name: David C. Carrington
Title: Group Vice President

By: /s/ SHILPA PARANDEKAR
    ---------------------------
Printed Name: Shilpa Parandekar
Title: AVP
<PAGE>

CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK,
as Co-Documentation Agent

By:  /s/ SUZANNE M. MACKAY
---------------------------------------
Printed Name:  Suzanne M. MacKay
Title:  Vice President

SYNDICATED LENDERS:

CITIBANK, N.A.

By:____________________________________

Printed Name:__________________________

Title:_________________________________

ABN AMRO BANK N.V.

By:____________________________________

Printed Name:__________________________

Title:_________________________________

By:____________________________________

Printed Name:__________________________

Title:_________________________________

SOCIETE GENERALE

By:____________________________________

Printed Name:__________________________

Title:_________________________________
<PAGE>

CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK,
as Co-Documentation Agent

By:____________________________________

Printed Name:__________________________

Title:_________________________________

SYNDICATED LENDERS:

CITIBANK, N.A.

By: [SIGNATURE ILLEGIBLE]
---------------------------------------
Printed Name: [ILLEGIBLE]
Title: Vice President

ABN AMRO BANK N.V.

By:____________________________________

Printed Name:__________________________

Title:_________________________________

By:____________________________________

Printed Name:__________________________

Title:_________________________________

SOCIETE GENERALE

By:____________________________________

Printed Name:__________________________

Title:_________________________________
<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK,
as Co-Documentation Agent

By:
   ---------------------------------
Printed Name:
             -----------------------
Title:
      ------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
   ---------------------------------
Printed Name:
             -----------------------
Title:
      ------------------------------

ABN AMRO BANK N.V.

By: /s/ DAVID C. CARRINGTON
   ---------------------------------
Printed Name: DAVID C. CARRINGTON
             -----------------------
Title:        GROUP VICE PRESIDENT
      ------------------------------

By: /s/ SHILPA PARANDEKAR
   ---------------------------------
Printed Name: SHILPA PARANDEKAR
             -----------------------
Title:        AVP
      ------------------------------

SOCIETE GENERALE

By:
   ---------------------------------
Printed Name:
             -----------------------
Title:
      ------------------------------

<PAGE>
CO-DOCUMENTATION AGENT:

FLEET NATIONAL BANK,
as Co-Documentation Agent

By:
   ---------------------------------
Printed Name:
             -----------------------
Title:
      ------------------------------

SYNDICATED LENDERS:

CITIBANK, N.A.

By:
   ---------------------------------
Printed Name:
             -----------------------
Title:
      ------------------------------

ABN AMRO BANK N.V.

By:
   ---------------------------------
Printed Name:
             -----------------------
Title:
      ------------------------------

By:
   ---------------------------------
Printed Name:
             -----------------------
Title:
      ------------------------------

SOCIETE GENERALE

By: /s/ RICHARD KNOWLTON
   ---------------------------------
Printed Name: Richard Knowlton
             -----------------------
Title:        Director
      ------------------------------
<PAGE>
FLEET NATIONAL BANK

By: /s/ SUZANNE M. MACKAY
   ---------------------------------------
Printed Name: Suzanne M. MacKay
             -----------------------------
Title: Vice President
      ------------------------------------

VENDOR WORKING CAPITAL LENDER AND
CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATED

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

<PAGE>
FLEET NATIONAL BANK

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

VENDOR WORKING CAPITAL LENDER AND
CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATED

By: /s/ [SIGNATURE ILLEGIBLE]
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

<PAGE>

              FIFTH AMENDMENT AND WAIVER TO BRIDGE LOAN AGREEMENT

              This FIFTH AMENDMENT AND WAIVER TO BRIDGE LOAN AGREEMENT (this
"Amendment"), dated as of June 29, 2001, is entered into by PEGASO
COMUNICACIONES Y SISTEMAS, S.A. DE C.V., a sociedad anonima de capital variable
organized under the laws of Mexico ("Borrower"), PEGASO TELECOMUNICACIONES, S.A.
DE C.V., a sociedad anonima de capital variable organized under the laws of
Mexico ("Pegaso"), PEGASO PCS, S.A. DE C.V., a sociedad anonima de capital
variable organized under the laws of Mexico ("Pegaso PCS"), PEGASO RECURSOS
HUMANOS, S.A. DE C.V., a sociedad anonima de capital variable organized under
the laws of Mexico ("Pegaso RH"), QUALCOMM INCORPORATED, a corporation organized
under the laws of Delaware ("QUALCOMM" and also the "Lender"), and CITIBANK,
N.A., a national banking association, in its capacity as administrative agent
for Lenders ("Administrative Agent"), under the Bridge Loan Agreement dated as
of May 27, 1999 (as modified, amended, supplemented or restated from time to
time, the "Bridge Loan Agreement"). Unless otherwise indicated, capitalized
terms used and not otherwise defined in this Amendment shall have the same
meanings in this Amendment as set forth in the Bridge Loan Agreement, and the
rules of interpretation set forth in Section 1.2 of the Bridge Loan Agreement
shall be applicable to this Amendment, mutatis mutandis, as if set forth in this
Amendment.

                                    RECITALS:

              A. The Bridge Loan Agreement has been amended pursuant to (i) the
First Amendment to the Bridge Loan Agreement, dated as of February 8, 2000, (ii)
the Second Amendment to the Bridge Loan Agreement, dated as of August 22, 2000,
(iii) the Third Amendment to the Bridge Loan Agreement, dated as of November 17,
2000, and (iv) the Fourth Amendment to the Bridge Loan Agreement, dated as of
March 22, 2001.

              B. Each Syndicated Lender assigned to QUALCOMM its respective
rights and obligations under the Bridge Loan Agreement pursuant to an Assignment
and Assumption Agreement, each dated as of May 25, 2001.

              C. Pursuant to the terms and conditions set forth in the letter
agreements, dated June 15, 2001 and June 22, 2001, respectively, among Borrower,
QUALCOMM and Administrative Agent, QUALCOMM waived Borrower's obligations to pay
the Obligations in full through the date hereof.

              D. The shareholders of Pegaso (the "Shareholders"), QUALCOMM,
Telefonica S.A. and Telefonica Moviles S.A. entered into a letter of intent,
dated June 21, 2001 (the "LOI"), in which Telefonica S.A. or an affiliate
thereof ("Telefonica") proposed to purchase certain of the Shareholders' and
QUALCOMM's interests in Pegaso pursuant to the terms and conditions set forth in
the LOI (the "Telefonica Transaction").

<PAGE>

              E. Borrower has requested that (i) the Bridge Loan Agreement be
amended to change the definition of "Scheduled Maturity Date" and "Total
Capitalized Interest Commitment", (ii) QUALCOMM waive the mandatory prepayment
requirement under Section 2.15 of the Bridge Loan Agreement with respect to the
up to $150,000,000 or more in cash equity (or subordinated convertible debt)
(the "Equity Contributions") to be contributed by the Shareholders pursuant to a
letter agreement, dated June 26, 2001 (as amended as of the date hereof, the
"Funding Agreement"), by and among Pegaso, the Shareholders, Sprint Corporation
and Leap Wireless International, Inc., and (iii) if necessary, QUALCOMM
conditionally waive Borrower's obligation to pay the Obligations in full on the
date hereof until the conditions precedent set forth in Section 2 of this
Amendment are satisfied to amend the Bridge Loan Agreement, each subject to the
conditions set forth in this Amendment.

              F. QUALCOMM and the Administrative Agent have agreed to amend the
Bridge Loan Agreement and QUALCOMM has agreed to grant the waivers requested
herein, each upon the terms and conditions set forth in this Amendment.

              NOW, THEREFORE, in consideration of the foregoing, the mutual
covenants and agreements set forth below and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties agree as follows:

              Section 1. Amendment and Waiver.

              (a) Amendments. Subject to the satisfaction of the conditions
precedent set forth in Section 2 of this Amendment, the Bridge Loan Agreement is
amended as follows:

                     (i) Section 1.1 of the Bridge Loan Agreement is amended by
       substituting for the definition of "Scheduled Maturity Date", the
       following new definition of "Scheduled Maturity Date":

                     "Scheduled Maturity Date" shall mean the earlier of (1)
       September 19, 2001 or (2) if the LOI is terminated prior to September 19,
       2001, the date that is five (5) Business Days after the date the LOI is
       terminated; provided that if definitive agreements relating to the
       Telefonica Transaction on terms and conditions reasonably acceptable to
       QUALCOMM are entered into prior to September 19, 2001, "Scheduled
       Maturity Date" shall mean December 31, 2001, and provided further if the
       conditions precedent set forth in Section 6(b) of the LOI have been
       satisfied (other than the conditions in subsection 6(b)(iv) and (vi)
       which are to be satisfied on the financial closing of the Telefonica
       Transaction), "Scheduled Maturity Date" shall mean the earlier of (w) the
       date sixty (60) days after the financial closing of the Telefonica
       Transaction, (x) if the definitive agreements relating to the Telefonica
       Transaction are terminated prior to financial closing, the date five (5)
       Business Days after such termination, (y) the date sixty (60) days after
       the date of the annual shareholders meeting of Telefonica in 2002 or (z)
       August 29, 2001.

                                       2
<PAGE>

                     (ii) Section 1.1 of the Bridge Loan Agreement is amended by
       substituting for the definition of "Total Capitalized Interest
       Commitment", the following new definition of "Total Capitalized Interest
       Commitment":

                     "Total Capitalized Interest Commitment" shall mean Seventy
       Three Million Dollars ($73,000,000), as such amount may be increased
       pursuant to Section 2.12(d).

                     (iii) Schedule 2.2 of the Bridge Loan Agreement is hereby
       replaced in its entirety by the new Schedule 2.2 as set forth in Appendix
       1 to this Agreement.

                     (iv) Schedule 2.3 of the Bridge Loan Agreement is hereby
       replaced in its entirety by the new Schedule 2.3 as set forth in Appendix
       2 to this Agreement.

              (b) Waiver. Subject to the satisfaction of the conditions
precedent set forth in Section 2 of this Amendment, QUALCOMM:

                     (i) waives the requirement of Borrower under Section 2.15
              of the Bridge Loan Agreement to prepay the Obligations with the
              net proceeds from the Equity Contributions; and

                     (ii) waives Section 9.1(n) of the Bridge Loan Agreement in
              connection with the Telefonica Transaction:

                            (A) until December 31, 2001, if definitive
                     agreements relating to the Telefonica Transaction, on terms
                     and conditions reasonably acceptable to QUALCOMM, are
                     entered into prior to the Scheduled Maturity Date; and

                            (B) until the earlier of (1) the date sixty (60)
                     days after the financial closing of the Telefonica
                     Transaction, (2) if the definitive agreements relating to
                     the Telefonica Transaction are terminated prior to
                     financial closing, the date five (5) Business Days after
                     such termination, (3) the date sixty (60) days after the
                     date of the annual shareholders meeting of Telefonica in
                     2002 or (4) August 29, 2001, if the conditions precedent
                     set forth in Section 6(b) of the LOI are satisfied (other
                     than the conditions in subsections 6(b)(iv) and (vi) which
                     are to be satisfied at the financial closing of the
                     Telefonica Transaction).

              (c) Conditional Waiver. In the event that the Amendment Effective
Date (as defined below) is not the date hereof, QUALCOMM waives, and Borrower
agrees to the following conditions for QUALCOMM's grant of the waiver,
Borrower's obligation to pay QUALCOMM in full the Obligations on the date
hereof, provided that:

                     (i) The waiver granted by QUALCOMM under this Section 1(c)
       shall expire unless Borrower (x) shall have satisfied the conditions
       precedent set forth in

                                       3
<PAGE>

       Section 2 of this Amendment by July 6, 2001 and (y) shall have delivered
       the executed Waiver Letter by August 15, 2001;

                     (ii) The interest applicable to all Loans outstanding from
       June 29, 2001, until the Amendment Effective Date, shall be a fixed rate
       of twenty-two and one-half percent (22.5%) per annum; and

                     (iii) Borrower (x) shall have delivered the documents
       described in Section 2(a)(iii) through 2(a)(v) and Section 2(c) of this
       Amendment (each of which shall be dated as of the date hereof and shall
       be reasonably satisfactory in form and substance to QUALCOMM and its
       counsel) and (y) as necessary, shall continue to deliver such documents
       (each of which shall be reasonably satisfactory in form and substance to
       QUALCOMM and its counsel) on or prior to the dates requested by QUALCOMM.

              Section 2. Conditions to Effectiveness. The amendments set forth
in Section 1(a) of this Amendment and the waiver granted by QUALCOMM under
Section 1(b) of this Amendment shall become effective upon the satisfaction of
all of the following conditions precedent (the date of satisfaction of all such
conditions being referred to as the "Amendment Effective Date") and such
amendments and waiver shall continue to be effective provided that the
Shareholders make the Equity Contributions to Pegaso in the amounts, and on the
dates, set forth in Section 1(a) of the Funding Agreement:

                     (a) On or before the Amendment Effective Date, each member
       of the Borrower Group, as applicable, shall deliver to QUALCOMM, by
       facsimile, copies of (with sufficient originally executed copies for each
       Lender to be delivered by overnight courier service) the following
       described documents (each of which shall be reasonably satisfactory in
       form and substance to QUALCOMM and its counsel):

                            (i) this Amendment, duly executed and delivered by
              the parties;

                            (ii) a confirmation of the Leap Counter-Guaranty
              Agreement, duly executed and delivered by Leap Wireless Inc., as
              guarantor under the Leap Counter-Guaranty Agreement, in favor of
              QUALCOMM;

                            (iii) a confirmation of the Pegaso Guaranty
              Agreement (in Spanish and English), dated as of the Amendment
              Effective Date, duly executed and delivered by each of Pegaso,
              Pegaso PCS and Pegaso RH, as guarantors under the Pegaso Guaranty
              Agreement, in favor of Administrative Agent for the benefit of the
              Lenders;

                            (iv) a confirmation of the Burillo Counter-Guaranty
              Agreement (in Spanish and English), dated as of the Amendment
              Effective Date, duly executed and delivered by Alejandro Burillo
              Azcarraga, as guarantor under the Burillo Counter-Guaranty
              Agreement, in favor of QUALCOMM;

                                       4
<PAGE>

                            (v) the Pagares, dated as of the Amendment Effective
              Date, that evidence the outstanding Obligations owed by Borrower
              to QUALCOMM as of the Amendment Effective Date;

                            (vi) evidence that the Shareholders have contributed
              at least $50,000,000 to Borrower in cash equity (or in
              subordinated convertible debt on the terms set forth in the
              Funding Agreement or on terms reasonably satisfactory to
              QUALCOMM);

                            (vii) the Shareholders' firm commitments to
              contribute an additional $50,000,000 to Borrower in cash equity
              (or in subordinated convertible debt on the terms set forth in the
              Funding Agreement or on terms reasonably satisfactory to
              QUALCOMM), remain in full force and effect;

                            (viii) an executed (x) waiver letter in the form of
              Exhibit A (the "Waiver Letter"), from the QUALCOMM Administrative
              Agent (as defined in the Common Agreement) and the Borrower Group
              with respect to (A) the waiver of any financial covenant default
              during the period from the date hereof through the Scheduled
              Maturity Date and (B) the waiver of any other default (if any) as
              reasonably requested by Borrower and (y) letter signed by Alcatel,
              addressed to the Alcatel Lenders (as defined in the Common
              Agreement) instructing such Alcatel Lenders to agree to the Waiver
              Letter and to forward correspondence to the Alcatel Administrative
              Agent (as defined in the Common Agreement) instructing same to
              execute the Waiver Letter; and

                            (ix) such other documents, instruments, approvals or
              opinions as QUALCOMM may reasonably request;

                     (b) Administrative Agent shall have received all fees and
       other amounts due and payable on or prior to the Amendment Effective
       Date, including, to the extent invoiced, reimbursement or payment of all
       out-of-pocket expenses required to be reimbursed or paid by Borrower
       under or in connection with this Amendment;

                     (c) On or before the Amendment Effective Date, all
       corporate, partnership and other proceedings taken by each member of the
       Borrower Group or to be taken in connection with the transactions
       contemplated by this Amendment, and all documents incidental to such
       transactions, shall be reasonably satisfactory in form and substance to
       the Administrative Agent and its counsel, and the Administrative Agent
       and such counsel shall have received all such counterpart originals or
       certified copies of such documents, opinions, certificates, and evidence
       as they may reasonably request;

                     (d) The representations and warranties set forth in Section
       3 of this Amendment shall be true and correct as of the Amendment
       Effective Date; and

                     (e) All approvals, authorizations, filings or Permits
       necessary for the execution, delivery and performance of this Amendment
       shall have been made, taken or

                                       5
<PAGE>

       obtained from or with any Governmental Authority, and no order, statutory
       rule, regulation, executive order, decree, judgment or injunction shall
       have been enacted, entered, issued, promulgated or enforced by any
       Governmental Authority which prohibits or restricts the transactions
       contemplated by this Amendment, nor shall any action have been commenced
       or threatened seeking any injunction or any restraining or other order to
       prohibit, restrain, invalidate or set aside the transactions contemplated
       by this Amendment.

              Section 3. Borrower Group Representations and Warranties. In order
to induce the Lenders to enter into this Amendment and to amend the Bridge Loan
Agreement in the manner provided in this Amendment, each member of the Borrower
Group represents and warrants, as to itself, to each Lender and the
Administrative Agent as follows:

                     (a) Corporate Power and Authority. Such member of the
       Borrower Group has all requisite corporate power and authority to enter
       into this Amendment and to carry out the transactions contemplated by,
       and perform its obligations under, the Bridge Loan Agreement as amended
       by this Amendment (the "Amended Agreement").

                     (b) Authorization of Agreements. The execution and delivery
       of this Amendment and the performance of the Amended Agreement have been
       duly authorized by all necessary corporate and, if required, stockholder
       action of the Borrower Group, and this Amendment has been duly executed
       and delivered by the Borrower Group.

                     (c) Enforceability. The Amended Agreement constitutes the
       legal, valid and binding obligation of each member of the Borrower Group,
       enforceable against such member of the Borrower Group in accordance with
       its terms, except as may be limited by bankruptcy, insolvency or other
       similar laws affecting the enforcement of creditors' rights in general.
       The enforceability of the Borrower Group's obligations thereunder is
       subject to general principles of equity (regardless of whether such
       enforceability is considered in a proceeding in equity or at law).

                     (d) No Conflict. The execution and delivery by each member
       of the Borrower Group of this Amendment and the performance by such
       member of the Borrower Group of the Amended Agreement do not and will not
       (i) contravene, in any material respect, any provision of any law,
       regulation, decree, ruling, judgment or order that is (A) applicable to
       such member of the Borrower Group or any of its properties or other
       assets and (B) in effect when this representation and warranty is made,
       (ii) result in a breach of or constitute a default under its charter
       documents or any other material agreement, indenture, lease or instrument
       binding upon such member of the Borrower Group or any of its properties
       or other assets and (iii) result in the creation or imposition of any
       Liens on any property (other than Permitted Liens) of the Borrower Group.

                     (e) Permits. The execution, delivery and performance by
       each member of the Borrower Group of this Amendment do not and will not
       require any Permit and do not result in the loss or impairment of any
       Permit previously obtained in

                                       6
<PAGE>

       connection with the execution, delivery and performance of the Loan
       Documents or the acquisition, construction, ownership, maintenance or
       operation of the System.

                     (f) Representations and Warranties in the Bridge Loan
       Agreement; Defaults. Each member of the Borrower Group confirms that as
       of the Amendment Effective Date the representations and warranties
       contained in Section 6 of the Bridge Loan Agreement are (before and after
       giving effect to this Amendment) true and correct and that no Default or
       Event of Default has occurred.

              Section 4. Miscellaneous.

              (a) Reference to and Effect on the Bridge Loan Agreement and the
other Loan Documents.

                     (i) The Bridge Loan Agreement and the other Loan Documents
       as specifically amended by this Amendment shall remain in full force and
       effect and are hereby ratified and confirmed.

                     (ii) The execution, delivery and performance of this
       Amendment shall not, except as expressly provided in this Amendment,
       constitute a waiver of any provision of, or operate as a waiver of any
       right, power or remedy of QUALCOMM and the Administrative Agent under,
       the Bridge Loan Agreement or any of the other Loan Documents.
       Furthermore, Borrower acknowledges that QUALCOMM's conditional waiver set
       forth in Section 1(c) of this Amendment is subject to Section 11.2(a) of
       the Bridge Loan Agreement.

                     (iii) Upon the conditions precedent set forth in this
       Amendment being satisfied, this Amendment shall be construed as one with
       the Bridge Loan Agreement, and the Bridge Loan Agreement shall, where the
       context requires, be read and construed throughout so as to incorporate
       this Amendment.

              (b) Fees and Expenses. Borrower acknowledges that all reasonable
costs, fees and expenses as described in Section 11.3(a) of the Bridge Loan
Agreement incurred by QUALCOMM and the Administrative Agent and in each case its
counsel, with respect to this Amendment and the documents and transactions
contemplated hereby shall be for the account of Borrower.

              (c) Execution in Counterparts; Effectiveness. This Amendment may
be executed in any number of counterparts, and by different parties hereto in
separate counterparts, each of which when so executed and delivered shall be
deemed an original, but all such counterparts taken together shall constitute
but one and the same instrument.

              (d) Headings. Section and subsection headings in this Amendment
are included for convenience of reference only and shall not constitute a part
of this Amendment for any other purpose or be given any substantive effect.

                                       7
<PAGE>

              (e) Severability. If any provision contained in or obligation
under this Amendment shall be invalid, illegal or unenforceable in any
jurisdiction, the validity, legality and enforceability of the remaining
provisions or obligations, or of such provision or obligation in any other
jurisdiction, shall not in any way be affected or impaired thereby.

              (f) GOVERNING LAW; JURISDICTION. THIS AMENDMENT SHALL BE GOVERNED
BY, AND SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE
STATE OF NEW YORK. EACH PARTY HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY
SUBMITS, FOR ITSELF AND ITS PROPERTY, TO THE NONEXCLUSIVE JURISDICTION OF THE
SUPREME COURT OF THE STATE OF NEW YORK SITTING IN NEW YORK COUNTY AND OF THE
UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK, AND ANY
APPELLATE COURT FROM ANY THEREOF, FOR THE PURPOSES OF ALL LEGAL PROCEEDINGS
ARISING OUT OF OR RELATING TO THIS AMENDMENT OR THE TRANSACTIONS CONTEMPLATED
HEREBY, AND EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY
AGREES THAT ALL CLAIMS IN RESPECT OF ANY SUCH ACTION OR PROCEEDING MAY BE HEARD
AND DETERMINED IN SUCH NEW YORK STATE OR, TO THE EXTENT PERMITTED BY LAW, IN
SUCH FEDERAL COURT. EACH OF THE PARTIES HERETO AGREES THAT A FINAL JUDGMENT IN
ANY SUCH ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN OTHER
JURISDICTIONS (INCLUDING MEXICO) BY SUIT ON THE JUDGMENT OR IN ANY OTHER MANNER
PROVIDED BY LAW. NOTHING IN THIS AMENDMENT SHALL AFFECT ANY RIGHT THAT
ADMINISTRATIVE AGENT OR ANY LENDER MAY OTHERWISE HAVE TO BRING ANY ACTION OR
PROCEEDING RELATING TO THIS AMENDMENT AGAINST BORROWER OR ITS PROPERTIES IN THE
COURTS OF ANY JURISDICTION. EACH OF THE PARTIES HERETO IRREVOCABLY WAIVES, TO
THE FULLEST EXTENT PERMITTED BY LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER
HAVE TO THE LAYING OF THE VENUE OF ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT
AND ANY CLAIM THAT ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT
IN AN INCONVENIENT FORUM.

                                       8
<PAGE>

              IN WITNESS WHEREOF, the parties hereto have duly executed this
Amendment as of the date first above written.

THE BORROWER GROUP:

PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.

By:
   ----------------------------------------
Printed Name:
             ------------------------------
Title:
      -------------------------------------

PEGASO TELECOMUNICACIONES, S.A. DE C.V.

By:
   ----------------------------------------
Printed Name:
             ------------------------------
Title:
      -------------------------------------

PEGASO PCS, S.A. DE C.V.

By:
   ----------------------------------------
Printed Name:
             ------------------------------
Title:
      -------------------------------------

PEGASO RECURSOS HUMANOS, S.A. DE C.V.

By:
   ----------------------------------------
Printed Name:
             ------------------------------
Title:
      -------------------------------------

<PAGE>

VENDOR WORKING CAPITAL LENDER AND
CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATED

By:
   ----------------------------------------
Printed Name:
             ------------------------------
Title:
      -------------------------------------

<PAGE>

ADMINISTRATIVE AGENT:

CITIBANK, N. A.,
as Administrative Agent

By:
   ----------------------------------------
Printed Name:
             ------------------------------
Title:
      -------------------------------------

<PAGE>

                                   Appendix 1

                                                                    Schedule 2.2
                                                                       to Bridge
                                                                  Loan Agreement

                       VENDOR WORKING CAPITAL COMMITMENTS

VENDOR WORKING CAPITAL LENDER                  COMMITMENT

QUALCOMM Incorporated                        $360,000,000

<PAGE>

                                   Appendix 2

                                                                    Schedule 2.3
                                                                       to Bridge
                                                                  Loan Agreement

                        CAPITALIZED INTEREST COMMITMENTS

CAPITALIZED INTEREST LENDER                    COMMITMENT

QUALCOMM Incorporated                         $73,000,000

<PAGE>

                                    EXHIBIT A

                              Form of Waiver Letter
                                 (see attached)
<PAGE>

                                                                  EXECUTION COPY

              SIXTH AMENDMENT AND WAIVER TO BRIDGE LOAN AGREEMENT

              This SIXTH AMENDMENT AND WAIVER TO BRIDGE LOAN AGREEMENT (this
"Amendment"), dated as of October 10, 2001, is entered into by PEGASO
COMUNICACIONES Y SISTEMAS, S.A. DE C.V., a sociedad anonima de capital variable
organized under the laws of Mexico ("Borrower"), PEGASO TELECOMUNICACIONES, S.A.
DE C.V., a sociedad anonima de capital variable organized under the laws of
Mexico ("Pegaso"), PEGASO PCS, S.A. DE C.V., a sociedad anonima de capital
variable organized under the laws of Mexico ("Pegaso PCS"), PEGASO RECURSOS
HUMANOS, S.A. DE C.V., a sociedad anonima de capital variable organized under
the laws of Mexico ("Pegaso RH"), QUALCOMM INCORPORATED, a corporation organized
under the laws of Delaware ("QUALCOMM" and also the "Lender"), and CITIBANK,
N.A., a national banking association, in its capacity as administrative agent
for Lenders ("Administrative Agent"), under the Bridge Loan Agreement dated as
of May 27, 1999 (as modified, amended, supplemented or restated from time to
time, the "Bridge Loan Agreement"). Unless otherwise indicated, capitalized
terms used and not otherwise defined in this Amendment shall have the same
meanings in this Amendment as set forth in the Bridge Loan Agreement, and the
rules of interpretation set forth in Section 1.2 of the Bridge Loan Agreement
shall be applicable to this Amendment, mutatis mutandis, as if set forth in this
Amendment.

                                    RECITALS:

              A. The Bridge Loan Agreement has been amended pursuant to (i) the
First Amendment to the Bridge Loan Agreement, dated as of February 8, 2000, (ii)
the Second Amendment to the Bridge Loan Agreement, dated as of August 22, 2000,
(iii) the Third Amendment to the Bridge Loan Agreement, dated as of November 17,
2000, (iv) the Fourth Amendment to the Bridge Loan Agreement, dated as of March
22, 2001 and (v) the Fifth Amendment and Waiver to Bridge Loan Agreement, dated
as of June 29, 2001.

              B. QUALCOMM and the members of the Borrower Group entered into
that certain letter agreement, dated June 22, 2001 (the "June 22, 2001 Letter
Agreement"), pursuant to which the parties agreed, inter alia, to set the
interest rate applicable to all Loans then outstanding at twenty percent (20%)
and to capitalize the outstanding interest on all Loans on the last Business Day
of each month.

              C. The shareholders of Pegaso (the "Shareholders"), Telefonica
S.A. and Telefonica Moviles S.A. have entered negotiations regarding the
possible acquisition by Telefonica S.A. or an affiliate thereof ("Telefonica")
of a majority of the outstanding capital stock of Pegaso or substantially all of
the assets of Pegaso, a possible business combination involving Telefonica and
Pegaso or a possible strategic investment by Telefonica in Pegaso (any of the
foregoing, the "Telefonica Transaction").

              D. The Shareholders of Pegaso, Pegaso, Sprint Corporation and Leap
Wireless International, Inc. have entered into a Funding Agreement, dated as of
June 26, 2001 (as

<PAGE>

amended or modified from time to time, the "Funding Agreement"), pursuant to
which certain of the Shareholders are obligated to subscribe to and purchase
notes from Pegaso in a minimum amount of $100,000,000 and up to $150,00,000 in
the form of subordinated convertible debt (the "Shareholder Contributions")
pursuant to the terms and conditions of the Funding Agreement.

              E. Borrower has requested that (i) the Bridge Loan Agreement be
amended to change the definition of "Scheduled Maturity Date", (ii) QUALCOMM
lower the interest rate applicable on all Loans outstanding, (iii) QUALCOMM
waive Section 9.1(n) of the Bridge Loan Agreement in connection with the
Telefonica Transaction and (iv) QUALCOMM waive the mandatory prepayment
requirement under Section 2.15 of the Bridge Loan Agreement with respect to the
Shareholder Contributions.

              F. QUALCOMM and the Administrative Agent have agreed to amend the
Bridge Loan Agreement and QUALCOMM has agreed to (i) lower the interest rate
applicable on all Loans and (ii) grant the waivers requested herein, each upon
the terms and conditions set forth in this Amendment.

              NOW, THEREFORE, in consideration of the foregoing, the mutual
covenants and agreements set forth below and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties agree as follows:

              Section 1. Amendment, Agreement, Waiver and Acknowledgement.

              (a) Amendment. Subject to the satisfaction of the conditions
precedent set forth in Section 2 of this Amendment, Section 1.1 of the Bridge
Loan Agreement is amended as follows:

                     (i) Section 1.1 of the Bridge Loan Agreement is amended by
substituting for the definition of "Capitalized Interest Commitment", the
following new definition of "Capitalized Interest Commitment";

                     "Capitalized Interest Commitment" shall mean, with respect
to each Capitalized Interest Lender, the amount set forth on Schedule 2.3 as
such Lender's "Capitalized Interest Commitment," as such amount shall be
increased, as necessary, by the amount, and without any action on the part of
any party, required to fund a Deemed Capitalized Interest Loan Request.

                     (ii) Section 1.1 of the Bridge Loan Agreement is amended by
substituting for the definition of "Scheduled Maturity Date", the following new
definition of "Scheduled Maturity Date";

                     "Scheduled Maturity Date" shall mean the earlier of (1)
August 29, 2002 or (2) if definitive agreements relating to the Telefonica
Transaction are terminated prior to financial closing of the Telefonica
Transaction, the date five (5) Business Days after such termination.

                                       2
<PAGE>

              (b) Agreement. The interest rate applicable to all Loans
outstanding as of, and after, September 18, 2001 shall be nineteen percent
(19%). Interest outstanding on all Loans shall continue to be capitalized on the
last Business Day of each month pursuant to the June 22, 2001 Letter Agreement.

              (c) Waiver and Acknowledgement. Subject to the satisfaction of the
conditions precedent set forth in Section 2 of this Amendment, QUALCOMM:

                     (i) waives the requirement of Borrower under Section 2.15
of the Bridge Loan Agreement to prepay the Obligations with the net proceeds
from the Shareholder Contributions;

                     (ii) if definitive agreements relating to the Telefonica
Transaction, on terms and conditions reasonably acceptable to QUALCOMM, are
entered into on or prior to October 31, 2001, waives Section 9.1(n) of the
Bridge Loan Agreement in connection with the Telefonica Transaction until the
earlier of (1) the date sixty (60) days after the financial closing of the
Telefonica Transaction, (2) if the definitive agreements relating to the
Telefonica Transaction are terminated prior to financial closing, the date five
(5) Business Days after such termination, (3) the date sixty (60) days after the
date of the annual shareholders meeting of Telefonica in 2002 or (4) August 29,
2002; and

                     (iii) acknowledges that from and after the Closing Date, as
a result of the amendment to the definition of Scheduled Maturity Date pursuant
to this Amendment, the Event of Default under Section 9.1(a) of the Bridge Loan
Agreement that existed prior to the Closing Date shall no longer exist.

              Section 2. Conditions to Effectiveness. Subject to the
satisfaction of all of the following conditions precedent (the date of
satisfaction of all such conditions being referred to as the "Closing Date"),
the amendment set forth in Section 1(a) of this Amendment, the agreement set
forth in Section 1(b) of this Amendment and the waivers and acknowledgement
granted by QUALCOMM under Section 1(c) of this Amendment shall be effective as
of the Closing Date:

              (a) Each member of the Borrower Group, as applicable, shall
deliver or shall cause to be delivered to QUALCOMM, by facsimile, copies of
(with sufficient originally executed copies for each Lender to be delivered by
overnight courier service) the following described documents (each of which
shall be reasonably satisfactory in form and substance to QUALCOMM and its
counsel):

                     (i) this Amendment, duly executed and delivered by the
parties;

                     (ii) a confirmation of the Counter-Guaranty, dated as of
the date hereof, duly executed and delivered by Leap Wireless Inc., as
Counter-Guarantor under such Counter-Guaranty, in favor of QUALCOMM;

                     (iii) a confirmation of the Pegaso Guaranty Agreement (in
Spanish and English), dated as of the date hereof, duly executed and delivered
by each of Pegaso, Pegaso PCS

                                       3
<PAGE>

and Pegaso RH, as guarantors under the Pegaso Guaranty Agreement, in favor of
Administrative Agent for the benefit of the Lenders;

                     (iv) a Guaranty Agreement (in Spanish and English), dated
as of the date hereof, duly executed and delivered by each of Pegaso Finanzas,
S.A. de C.V. and Pegaso Finco I, S.A. de C.V., as guarantors, in favor of
Administrative Agent for the benefit of the Lenders, in form and substance
satisfactory to QUALCOMM and the Administrative Agent.

                     (v) a confirmation of the Counter-Guaranty (in Spanish and
English), dated as of the date hereof, duly executed and delivered by Alejandro
Burillo Azcarraga, as Counter-Guarantor under such Counter-Guaranty, in favor of
QUALCOMM;

                     (vi) the Pagare, dated as of the date hereof, that
evidences the outstanding Obligations owed by Borrower to QUALCOMM as of the
date hereof;

                     (vii) an executed letter in the form of Exhibit A (the
"Notice Letter"), among the Agents (as defined in the Common Agreement) and the
Borrower Group with respect to (A) the amendments contemplated in the Common
Agreement, (B) the waiver of any financial covenant default during the period
from the date hereof through the Scheduled Maturity Date and (C) the waiver of
any other default (if any) as reasonably requested by Borrower;

                     (viii) security documents as set forth in Exhibit B,
evidencing Liens in certain of the Collateral (as defined in the Common
Agreement);

                     (ix) a legal opinion from each of (a) Borrower's Mexican
corporate counsel, and (b) Borrower's Mexican litigation counsel, in form and
substance satisfactory to QUALCOMM.

                     (x) such other documents, instruments, approvals or
opinions as QUALCOMM may reasonably request;

              (b) Administrative Agent shall have received all fees and other
amounts due and payable on or prior to the Closing Date, including, to the
extent invoiced, reimbursement or payment of all out-of-pocket expenses required
to be reimbursed or paid by Borrower under or in connection with this Amendment;

              (c) On or before the Closing Date, all corporate, partnership and
other proceedings taken by each member of the Borrower Group or to be taken in
connection with the transactions contemplated by this Amendment, and all
documents incidental to such transactions, shall be reasonably satisfactory in
form and substance to the Administrative Agent and its counsel, and the
Administrative Agent and such counsel shall have received all such counterpart
originals or certified copies of such documents, opinions, certificates, and
evidence as they may reasonably request;

              (d) The representations and warranties set forth in Section 3 of
this Amendment shall be true and correct as of the Closing Date; and

                                       4
<PAGE>

              (e) All approvals, authorizations, filings or Permits necessary
for the execution, delivery and performance of this Amendment shall have been
made, taken or obtained from or with any Governmental Authority, and no order,
statutory rule, regulation, executive order, decree, judgment or injunction
shall have been enacted, entered, issued, promulgated or enforced by any
Governmental Authority which prohibits or restricts the transactions
contemplated by this Amendment, nor shall any action have been commenced or
threatened seeking any injunction or any restraining or other order to prohibit,
restrain, invalidate or set aside the transactions contemplated by this
Amendment.

              Section 3. Borrower Group Representations and Warranties. In order
to induce the Lenders to enter into this Amendment and to amend the Bridge Loan
Agreement in the manner provided in this Amendment, each member of the Borrower
Group represents and warrants, as to itself, as applicable, to each Lender and
the Administrative Agent as follows:

              (a) Corporate Power and Authority. Such member of the Borrower
Group has all requisite corporate power and authority to enter into this
Amendment and to carry out the transactions contemplated by, and perform its
obligations under, the Bridge Loan Agreement as amended by this Amendment (the
"Amended Agreement").

              (b) Authorization of Agreements. The execution and delivery of
this Amendment and the performance of the Amended Agreement have been duly
authorized by all necessary corporate and, if required, stockholder action of
the Borrower Group, and this Amendment has been duly executed and delivered by
the Borrower Group.

              (c) Enforceability. The Amended Agreement constitutes the legal,
valid and binding obligation of each member of the Borrower Group, enforceable
against such member of the Borrower Group in accordance with its terms, except
as may be limited by bankruptcy, insolvency or other similar laws affecting the
enforcement of creditors' rights in general. The enforceability of the Borrower
Group's obligations thereunder is subject to general principles of equity
(regardless of whether such enforceability is considered in a proceeding in
equity or at law).

              (d) No Conflict. The execution and delivery by each member of the
Borrower Group of this Amendment and the performance by such member of the
Borrower Group of the Amended Agreement do not and will not (i) contravene, in
any material respect, any provision of any law, regulation, decree, ruling,
judgment or order that is (A) applicable to such member of the Borrower Group or
any of its properties or other assets and (B) in effect when this representation
and warranty is made, (ii) result in a breach of or constitute a default under
its charter documents or any other material agreement, indenture, lease or
instrument binding upon such member of the Borrower Group or any of its
properties or other assets and (iii) result in the creation or imposition of any
Liens on any property (other than Permitted Liens) of the Borrower Group.

              (e) Permits. The execution, delivery and performance by each
member of the Borrower Group of this Amendment do not and will not require any
Permit and do not result in the loss or impairment of any Permit previously
obtained in connection with the execution,

                                       5
<PAGE>

delivery and performance of the Loan Documents or the acquisition, construction,
ownership, maintenance or operation of the System.

              (f) Representations and Warranties in the Bridge Loan Agreement;
Defaults. The representations and warranties contained in Section 6 of the
Bridge Loan Agreement are (before and after giving effect to this Amendment)
true and correct and that, after giving effect to this Amendment no Default or
Event of Default has occurred and is continuing.

              (g) Shareholder Contributions. Shareholder Contributions have been
made pursuant to the Funding Agreement in an amount equal to or greater than
$100,000,000 and such amount has been contributed by Pegaso to Borrower as
equity capital contributions.

              Section 4. Conditions Subsequent and Events of Default. The
failure of any of the following conditions subsequent to occur by the date
applicable to such condition subsequent, shall constitute an Event of Default
under the Bridge Loan Agreement and upon the occurrence of such Event of Default
the Lenders shall be entitled to exercise the remedies as set forth in Section
9.2 of the Bridge Loan Agreement and the security documents set forth in Exhibit
B:

              (a) Execution and Delivery of Definitive Agreements. On or before
October 31, 2001, definitive agreements relating to the Telefonica Transaction
(the "Definitive Agreements") shall have been delivered in form and substance
reasonably satisfactory to QUALCOMM.

              (b) Satisfaction of All Conditions Relating to the Telefonica
Transaction. On or before the earlier to occur of (i) January 31, 2002 and (ii)
the date ninety (90) days after the execution of the Definitive Agreements, all
of the conditions required for the financial closing under the Definitive
Agreements shall have been satisfied.

              Section 5. Miscellaneous.

              (a) Reference to and Effect on the Bridge Loan Agreement and the
other Loan Documents.

                     (i) The Bridge Loan Agreement and the other Loan Documents
as specifically amended by this Amendment shall remain in full force and effect
and are hereby ratified and confirmed.

                     (ii) The execution, delivery and performance of this
Amendment shall not, except as expressly provided in this Amendment, constitute
a waiver of any provision of, or operate as a waiver of any right, power or
remedy of QUALCOMM and the Administrative Agent under, the Bridge Loan Agreement
or any of the other Loan Documents.

                     (iii) Upon the conditions precedent set forth in this
Amendment being satisfied, this Amendment shall be construed as one with the
Bridge Loan Agreement, and the

                                       6
<PAGE>

Bridge Loan Agreement shall, where the context requires, be read and construed
throughout so as to incorporate this Amendment.

              (b) Fees and Expenses. Borrower acknowledges that all reasonable
costs, fees and expenses as described in Section 11.3(a) of the Bridge Loan
Agreement incurred by QUALCOMM and the Administrative Agent and in each case its
counsel, with respect to this Amendment and the documents and transactions
contemplated hereby shall be for the account of Borrower.

              (c) Execution in Counterparts; Effectiveness. This Amendment may
be executed in any number of counterparts, and by different parties hereto in
separate counterparts, each of which when so executed and delivered shall be
deemed an original, but all such counterparts taken together shall constitute
but one and the same instrument.

              (d) Headings. Section and subsection headings in this Amendment
are included for convenience of reference only and shall not constitute a part
of this Amendment for any other purpose or be given any substantive effect.

              (e) Severability. If any provision contained in or obligation
under this Amendment shall be invalid, illegal or unenforceable in any
jurisdiction, the validity, legality and enforceability of the remaining
provisions or obligations, or of such provision or obligation in any other
jurisdiction, shall not in any way be affected or impaired thereby.

              (f) GOVERNING LAW; JURISDICTION. THIS AMENDMENT SHALL BE GOVERNED
BY, AND SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE
STATE OF NEW YORK. EACH PARTY HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY
SUBMITS, FOR ITSELF AND ITS PROPERTY, TO THE NONEXCLUSIVE JURISDICTION OF THE
SUPREME COURT OF THE STATE OF NEW YORK SITTING IN NEW YORK COUNTY AND OF THE
UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK, AND ANY
APPELLATE COURT FROM ANY THEREOF, FOR THE PURPOSES OF ALL LEGAL PROCEEDINGS
ARISING OUT OF OR RELATING TO THIS AMENDMENT OR THE TRANSACTIONS CONTEMPLATED
HEREBY, AND EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY AND UNCONDITIONALLY
AGREES THAT ALL CLAIMS IN RESPECT OF ANY SUCH ACTION OR PROCEEDING MAY BE HEARD
AND DETERMINED IN SUCH NEW YORK STATE OR, TO THE EXTENT PERMITTED BY LAW, IN
SUCH FEDERAL COURT. EACH OF THE PARTIES HERETO AGREES THAT A FINAL JUDGMENT IN
ANY SUCH ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN OTHER
JURISDICTIONS (INCLUDING MEXICO) BY SUIT ON THE JUDGMENT OR IN ANY OTHER MANNER
PROVIDED BY LAW. NOTHING IN THIS AMENDMENT SHALL AFFECT ANY RIGHT THAT
ADMINISTRATIVE AGENT OR ANY LENDER MAY OTHERWISE HAVE TO BRING ANY ACTION OR
PROCEEDING RELATING TO THIS AMENDMENT AGAINST BORROWER OR ITS PROPERTIES IN THE
COURTS OF ANY JURISDICTION. EACH OF THE PARTIES HERETO IRREVOCABLY WAIVES, TO
THE FULLEST EXTENT PERMITTED BY

                                       7
<PAGE>

LAW, ANY OBJECTION WHICH IT MAY NOW OR HEREAFTER HAVE TO THE LAYING OF THE VENUE
OF ANY SUCH PROCEEDING BROUGHT IN SUCH A COURT AND ANY CLAIM THAT ANY SUCH
PROCEEDING BROUGHT IN SUCH A COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.

                                       8
<PAGE>

              IN WITNESS WHEREOF, the parties hereto have duly executed this
Amendment as of the date first above written.

THE BORROWER GROUP:

PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

PEGASO TELECOMUNICACIONES, S.A. DE C.V.

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

PEGASO PCS, S.A. DE C.V.

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

PEGASO RECURSOS HUMANOS, S.A. DE C.V.

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

<PAGE>

VENDOR WORKING CAPITAL LENDER AND
CAPITALIZED INTEREST LENDER:

QUALCOMM INCORPORATED

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

<PAGE>

ADMINISTRATIVE AGENT:

CITIBANK, N. A.,
as Administrative Agent

By:
   ---------------------------------------
Printed Name:
             -----------------------------
Title:
      ------------------------------------

<PAGE>

                                    EXHIBIT A

                              Form of Notice Letter
                                 (see attached)

<PAGE>

                                    EXHIBIT B

                               Security Documents

1. Second Priority Voluntary Mortgage granted by Borrower in favor of QUALCOMM.

2. Second Priority Pledge Agreement upon the Fideicomitente rights of Borrower
pursuant to the Vendor Guaranty Trust Agreement (as defined in the Common
Agreement).

3. Second Priority Pledge upon the PCS/Recursos Pledge Agreement (as defined in
the Common Agreement).

4. Second Priority Pledge upon the Sistemas Pledge Agreement (as defined in the
Common Agreement).

5. Second Priority Pledge upon the shares of Pegaso Finanzas, S.A. de C.V.

6. Second Priority Pledge upon the shares of Pegaso Finco I, S.A. de C.V.<PAGE>
                                                                   EXHIBIT 10.45

                                COMMON AGREEMENT

                                      AMONG

                 PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.

                            PEGASO PCS, S.A. DE C.V.

                     PEGASO TELECOMUNICACIONES, S.A. DE C.V.

                      PEGASO RECURSOS HUMANOS. S.A. DE C.V.

                                       AND

                CITIBANK MEXICO, S.A., GRUPO FINANCIERO CITIBANK

                             AS COLLATERAL AGENT AND

                                 CITIBANK, N.A.

                             AS INTERCREDITOR AGENT

                                       AND

                           CITIBANK INTERNATIONAL PLC,

                         AS ALCATEL ADMINISTRATIVE AGENT

                                       AND

                               ABN AMRO BANK N.V.,

                        AS QUALCOMM ADMINISTRATIVE AGENT

                          DATED AS OF DECEMBER 15, 1998

<PAGE>
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                          Page
                                                                                          ----
<S>                                                                                     <C>
ARTICLE 1 DEFINITIONS AND PRINCIPLES OF CONSTRUCTION...................................     2
        1.01  Definitions..............................................................     2
        1.02  Principles of Construction...............................................     2
        1.03  Conflicts................................................................     3

ARTICLE 2 CREDIT FACILITIES............................................................     3
        2.01  Indebtedness Subject to this Agreement...................................     3
        2.02  Senior Indebtedness Pari Passu...........................................     3
        2.03  Pro Rata Payment of Obligations..........................................     4
        2.04  Additional Senior Indebtedness...........................................     4
        2.05  Prepayments..............................................................     6
        2.06  Payments.................................................................     7
        2.07  Swap Agreements as Senior Indebtedness...................................     7

ARTICLE 3 CONDITIONS PRECEDENT.........................................................     8
        3.01  Conditions Precedent to Initial Disbursement.............................     8
        3.02  Conditions Precedent to All Disbursements................................    15
        3.03  No Waiver................................................................    16
        3.04  Delivery of Certificates, Etc............................................    16
        3.05  Beneficiaries of Conditions to Disbursements.............................    16

ARTICLE 4 REPRESENTATIONS AND WARRANTIES...............................................    17
        4.01  Corporate Status.........................................................    17
        4.02  Corporate Power and Authority............................................    17
        4.03  Valid and Binding Obligation.............................................    17
        4.04  No Violation.............................................................    18
        4.05  Permits..................................................................    18
        4.06  Financial Statements; Financial Condition; Undisclosed Liabilities; Etc..    19
        4.07  Litigation; Labor Disputes...............................................    19
        4.08  Tax Returns and Payments.................................................    20
        4.09  Capitalization...........................................................    20
        4.10  Subsidiaries, Mortgage and Minimum Assets................................    21
        4.11  Compliance with Applicable Law...........................................    22
        4.12  Property Rights..........................................................    22
        4.13  Single-Purpose...........................................................    22
        4.14  Fees and Enforcement.....................................................    22
        4.15  Foreign Exchange Approvals...............................................    23
        4.16  Liens....................................................................    23
        4.17  Title; Security Documents................................................    23
        4.18  Transaction Documents....................................................    24
        4.19  Certain Ancillary Services...............................................    24
        4.20  Environmental Matters....................................................    24
        4.21  Investment Company Act...................................................    24
</TABLE>

                                       i
<PAGE>

<TABLE>
<S>                                                                                     <C>
        4.22  True and Complete Disclosure.............................................    25
        4.23  No Additional Fees.......................................................    25
        4.24  Use of Proceeds..........................................................    25
        4.25  Insurance................................................................    26
        4.26  Private Activities; Immunity.............................................    26
        4.27  No Subordination.........................................................    26
        4.28  Licenses.................................................................    26
        4.29  Operator Agreements......................................................    27
        4.30  Employee Benefit Plans; Employment Matters...............................    27
        4.31  Year 2000................................................................    28
        4.32  Indebtedness.............................................................    28

ARTICLE 5 AFFIRMATIVE COVENANTS........................................................    28
        5.01  Information Covenants....................................................    28
        5.02  Books, Records and Inspections; Accounting and Audit Matters.............    32
        5.03  Maintenance of Property and Insurance....................................    33
        5.04  Corporate Franchises and System Permits; Enforcement of Transaction
               Documents...............................................................    33
        5.05  Compliance with Applicable Law...........................................    34
        5.06  Use of Proceeds..........................................................    34
        5.07  Taxes; Proper Legal Form.................................................    34
        5.08  Credit Agreements........................................................    34
        5.09  Additional Documents; Filings and Recordings.............................    34
        5.10  Condemnation Event; Casualty Event.......................................    35
        5.11  Application of Equity Contributions......................................    36
        5.12  Translations.............................................................    37
        5.13  New Subsidiaries.........................................................    37
        5.14  Other Properties Subject to Liens; After-Acquired Property...............    37
        5.15  Equity Commitments.......................................................    38
        5.16  Year 2000 Compliance.....................................................    38
        5.17  Operator Agreements......................................................    39
        5.18  Payment of Certain Fees..................................................    39
        5.19  Consents, Approvals......................................................    39
        5.20  Maintenance of Licenses..................................................    40
        5.21  Site Acquisition.........................................................    40
        5.22  Minimum Assets...........................................................    41

ARTICLE 6 NEGATIVE COVENANTS...........................................................    41
        6.01  Liens....................................................................    41
        6.02  Consolidation; Merger; Sale of Assets....................................    43
        6.03  Restricted Payments......................................................    44
        6.04  Indebtedness.............................................................    46
        6.05  Subsidiaries.............................................................    47
        6.06  Advances, Investments and Loans..........................................    48
        6.07  Affiliate Transactions...................................................    48
        6.08  No Other Business........................................................    49
        6.09  EBITDA Test..............................................................    49
        6.10  Leverage Ratio...........................................................    49
</TABLE>

                                       ii
<PAGE>

<TABLE>
<S>                                                                                     <C>
        6.11  Limitation on Issuance of Stock..........................................    50
        6.12  Prepayments..............................................................    50
        6.13  Modifications of Certain Documents and Agreements........................    50
        6.14  Abandonment of The System................................................    50
        6.15  Hazardous Substances.....................................................    50
        6.16  Immunity.................................................................    50
        6.17  Regulations..............................................................    51
        6.18  Investment Company Act...................................................    51
        6.19  Disputes.................................................................    51

ARTICLE 7 EVENTS OF DEFAULT............................................................    51
        7.01  Payments.................................................................    51
        7.02  Representations..........................................................    51
        7.03  Covenants................................................................    52
        7.04  Default Under Other Agreements...........................................    52
        7.05  Involuntary Bankruptcy, Etc..............................................    52
        7.06  Voluntary Bankruptcy, Etc................................................    53
        7.07  Analogous Proceedings....................................................    53
        7.08  Attachment of Collateral.................................................    53
        7.09  Financing Agreements.....................................................    53
        7.10  Expropriation............................................................    54
        7.11  Monetary Restrictions....................................................    54
        7.12  Judgments................................................................    54
        7.13  Licenses and Permits.....................................................    54
        7.14  Change of Control........................................................    54
        7.15  Other Senior Indebtedness................................................    54
        7.16  Mortgage.................................................................    55
        7.17  Remedies.................................................................    55

ARTICLE 8 MISCELLANEOUS................................................................    56
        8.01  Payment of Expenses, Etc.................................................    56
        8.02  Right of Setoff..........................................................    57
        8.03  Notices..................................................................    58
        8.04  Benefit of Agreement.....................................................    58
        8.05  No Waiver; Remedies Cumulative...........................................    58
        8.06  Severability.............................................................    59
        8.07  Counterparts.............................................................    59
        8.08  Effectiveness............................................................    59
        8.09  Survival.................................................................    59
        8.10  Currency of Payment......................................................    59
        8.11  Judgment Currency........................................................    60
        8.12  Evidence of Debt.........................................................    60
        8.13  English Language.........................................................    61
        8.14  Entire Agreement.........................................................    61
        8.15  Waiver of Sovereign Immunity.............................................    61
        8.16  Reinstatement............................................................    61
        8.17  GOVERNING LAW; SUBMISSION TO JURISDICTION; VENUE; WAIVER OF JURY TRIAL...    62
</TABLE>

                                      iii
<PAGE>

<TABLE>
<S>                                                                                     <C>
        8.18  Calculations; Computations..............................................    63
        8.19  No Third-Party Beneficiaries............................................    63
        8.20  Amendments..............................................................    63
        8.21  Confidentiality.........................................................    64
</TABLE>

                                       iv
<PAGE>

        THIS COMMON AGREEMENT, dated as of December 15, 1998 (this "Agreement"),
among PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V., a sociedad anonima de
capital variable organized under the laws of Mexico (the "Company" or the
"Borrower"), PEGASO TELECOMUNICACIONES, S.A. DE C.V., a sociedad anonima de
capital variable organized under the laws of Mexico ("Holdings"), PEGASO PCS,
S.A. DE C.V., a sociedad anonima de capital variable organized under the laws of
Mexico ("Pegaso PCS"), PEGASO RECURSOS HUMANOS, S.A. DE C.V., a sociedad anonima
de capital variable organized under the laws of Mexico ("Personnel Co."),
CITIBANK, NA., a national banking organization under the laws of the United
States of America, acting through its branch located in New York, New York, in
its capacity as Intercreditor Agent (the "Intercreditor Agent"), on behalf of
the Senior Lenders, CITIBANK MEXICO, S.A., GRUPO FINANCIERO CITIBANK, a national
banking organization under the laws of the United Mexican States, in its
capacity as Collateral Agent (the "Collateral Agent"), CITIBANK INTERNATIONAL
PLC, a corporation organized under the laws of England, in its capacity as
Alcatel Administrative Agent (the "Alcatel Administrative Agent"), on behalf of
the Alcatel Lenders, and ABN AMRO BANK N.V., a Netherlands banking organization
in its capacity as QUALCOMM ADMINISTRATIVE AGENT (the "Qualcomm Administrative
Agent") on behalf of the Qualcomm Lenders, and the other Senior Lenders
executing this Agreement from time to time as contemplated by Article 2 hereof.

                                   WITNESSETH:

        WHEREAS, the Company was awarded the Licenses; and

        WHEREAS, the Company by itself (and, in some cases, through other
members of the Borrower Group) will engage in the Business; and

        WHEREAS, the Company is a Wholly-owned subsidiary of Holdings the shares
of which are, on the date hereof, owned by the Sponsors in accordance with the
terms of the Joint Venture Agreement; and

        WHEREAS, the Company has entered into the Alcatel Procurement Agreement
with Alcatel Indetel pursuant to which the Company has agreed to acquire from
Alcatel Indetel, and Alcatel Indetel has agreed to supply to the Company,
certain equipment and services required for the System and the Business; and

        WHEREAS, the Company has entered into the Qualcomm Procurement
Agreements for the purpose of acquiring from the respective vendors thereunder
certain equipment and services required for the System and the Business; and

        WHEREAS, to finance the cost of constructing, developing and equipping
the System and starting-up the Business, the Company is entering into various
senior indebtedness agreements, including the Alcatel Credit Agreement and the
Qualcomm Credit Agreement, and shall be entering into various other senior
indebtedness agreements, in each case setting out the terms upon which financing
is to be provided for such development; and

<PAGE>
        WHEREAS, the execution of this Agreement, which provides for, among
other things, (i) certain common representations, warranties and covenants of
the Company, (ii) certain uniform conditions to the making of Senior Loans and
(iii) certain common events of default, is a condition precedent to the
obligation of the Senior Lenders to extend credit to the Company; and

        WHEREAS, the Intercreditor Agent, the Collateral Agent and the
Administrative Agents are simultaneously with the execution hereof entering into
the Collateral Agency Agreement and the Intercreditor Agreement; and

        WHEREAS, the Company may incur Additional Senior Indebtedness and other
Indebtedness from time to time subject to the terms and conditions set forth in
this Agreement.

        NOW, THEREFORE, in consideration of the foregoing premises and the
covenants and agreements contained herein and in the other Financing Agreements,
the parties hereto agree as follows:

                                    ARTICLE 1

                   DEFINITIONS AND PRINCIPLES OF CONSTRUCTION

        1.01 DEFINITIONS. For all purposes of this Agreement, except as
otherwise expressly provided or unless the context otherwise requires,
capitalized terms used in this Agreement, its appendices, schedules and exhibits
have the meanings given to such terms in Appendix A.

        1.02 PRINCIPLES OF CONSTRUCTION. In this Agreement and the other
Financing Agreements and the appendices, exhibits and schedules hereto or
thereto (unless otherwise provided therein):

             (a) The meanings set forth for defined terms in Appendix A or in
any Financing Agreement shall be equally applicable to both the singular and
plural forms of the terms defined and the masculine, feminine or neuter gender
shall include all genders.

             (b) All references in any Financing Agreement to clauses, sections,
appendices, schedules and exhibits are to clauses, sections, appendices,
schedules and exhibits in or to such Financing Agreement unless otherwise
specified therein.

             (c) The words "hereof," "herein" and "hereunder" and words of
similar import when used in a Financing Agreement shall refer to such Financing
Agreement as a whole and not to any particular provision of such Financing
Agreement.

             (d) References in any Financing Agreement to any statute, decree,
regulation or other Applicable Law shall be construed as a reference to such
statute, law, decree, regulation or other Applicable Law as re-enacted,
redesignated, amended or extended from time to time, except as otherwise
provided in such Financing Agreement.

             (e) References in any Financing Agreement to any Transaction
Document or any other document or agreement shall be deemed to include
references to such

                                       2
<PAGE>
Transaction Document or such other document or agreement as amended, varied,
supplemented or replaced from time to time in accordance with the terms of such
Transaction Document, document or agreement and this Agreement and to include
any appendices, schedules, exhibits, clarification letters, side letters and
disclosure letters executed in connection therewith.

             (f) References to any Person or Persons shall be construed as a
reference to any successors or assigns of such Person or Persons to the extent
permitted under the Financing Agreements and, in the case of any Governmental
Authority, any Person succeeding to its functions and capacities.

             (g) The table of contents and the headings of the several sections
and subsections of this Agreement or any Financing Agreement are intended for
convenience only and shall not in any way affect the meaning or construction of
any provision therein.

             (h) References to the words "include" or "including" shall be
deemed to be followed by "without limitation" or "but not limited to," whether
or not they are followed by such phrases or words of similar import.

             (i) References to a number of days shall refer to calendar days
unless Business Days are otherwise specified.

             (j) References to "the Borrower Group," to a "member of the
Borrower Group" or to "members of the Borrower Group" shall mean each member of
the Borrower Group agreeing, representing or otherwise acting on a joint and
several basis.

        1.03 CONFLICTS. In the case of any conflict between the terms of this
Agreement and the terms of any Credit Agreement, the terms of such Credit
Agreement, as between the Company and the Senior Lenders party thereto, shall
control.

                                    ARTICLE 2

                                CREDIT FACILITIES

        2.01 INDEBTEDNESS SUBJECT TO THIS AGREEMENT. All Senior Indebtedness
shall be entitled to the benefits of and subject to the obligations set forth in
this Agreement and shall be entitled to the liens, charges, collateral
assignments and security interests granted by or pursuant to the Security
Documents.

        2.02 SENIOR INDEBTEDNESS PARI PASSU. All Senior Indebtedness shall rank
pari passu without any preference among Senior Indebtedness by reason of date of
incurrence or otherwise.

        2.03 PRO RATA PAYMENT OF OBLIGATIONS. Except as specifically set forth
in Section 2.05, (a) each prepayment to a Senior Lender in respect of the Senior
Indebtedness, and (b) on and after the occurrence of an Event of Default and the
delivery of a Remedies Instruction as described in the Intercreditor Agreement,
each payment to a Senior Lender in respect of the Senior Indebtedness, shall be
on a Pro Rata Payment basis in accordance with the respective

                                       3
<PAGE>
interest, fees, commissions, indemnities, principal and other amounts due to all
of the Senior Lenders on the date of such payment or prepayment.

        2.04 ADDITIONAL SENIOR INDEBTEDNESS. From time to time the Company may,
subject to the terms hereof, designate additional indebtedness of and
commitments to lend to the Company as Senior Indebtedness, and upon satisfaction
of each of the following conditions precedent such designated indebtedness and
commitments, for all purposes of this Agreement, shall be Senior Indebtedness
secured by the collateral subject to the Security Documents and entitled to the
benefits of this Agreement ("Additional Senior Indebtedness"):

             (a) Subject to the terms and conditions of this Section 2.04, the
lenders of such Additional Senior Indebtedness (or an agent or fiduciary
representing such lenders) (the "Additional Senior Indebtedness Lender") shall
have executed and delivered to the Collateral Agent an agreement in which each
such lender agrees to be bound as a Senior Lender by all of the terms and
conditions of this Agreement, the Collateral Agency Agreement and the
Intercreditor Agreement as if it were a party hereto and thereto.

             (b) The Company shall have furnished to the Collateral Agent and to
each of the Alcatel Administrative Agent and the Qualcomm Administrative Agent a
term sheet describing the terms and conditions of the proposed Additional Senior
Indebtedness, a summary describing any and all representations, warranties,
affirmative covenants, negative covenants, events of default and other
non-financial terms which are to be imposed in connection with the making of
such Additional Senior Indebtedness and which are potentially more restrictive
on the Borrower Group than the provisions of this Agreement (the "Further
Provisions"), and as soon as practicable, drafts of the proposed Credit
Agreement and each of the other documents related thereto. Within 10 Business
Days after the receipt of such term sheet and drafts of the Further Provisions,
the Alcatel Administrative Agent and the Qualcomm Administrative Agent shall
notify the Company, the Additional Senior Indebtedness Lender, the Collateral
Agent and each other such Administrative Agent whether they (acting on behalf
of, and at the instructions of, the Senior Lenders under their respective Credit
Agreements) agree to amend or supplement the provisions of this Agreement to
allow such Further Provisions to be incorporated herein; and, if either of them
(on behalf of the Senior Lenders under their respective Credit Agreements) so
agree, pursuant to the sole and absolute discretion of such Senior Lenders, this
Agreement shall be amended to include such Further Provisions and each party
hereto shall execute and deliver an amendment implementing such Further
Provisions, which amendment shall be in form reasonably satisfactory to each
such party; provided, that in no event shall any Administrative Agent or the
Collateral Agent be obligated to waive or modify any provision of the Financing
Agreements relating to the Collateral. If neither of such Administrative Agents
agrees to include such Further Provisions in this Agreement, such Further
Provisions may be included in the Credit Agreement under which such Additional
Senior Indebtedness is to be incurred and an "event of default" thereunder shall
constitute an Event of Default hereunder as set forth in Section 7.15. Any and
all Further Provisions related to any Additional Senior Indebtedness, which
Further Provisions were included in this Agreement pursuant to this Section
2.04(b), shall terminate, and this Agreement shall be amended to delete such
Further Provisions, upon the full refinancing of all of the obligations under
such related Additional Senior Indebtedness; provided, that if at the time of
any such refinancing, the Senior Indebtedness under either of the Alcatel Credit
Agreement or the Qualcomm Credit Agreement have been syndicated or participated
such

                                       4
<PAGE>
that any of the commitments or outstanding obligations thereunder have been sold
without credit support from Alcatel or its Affiliates or QUALCOMM or its
Affiliates, as applicable, such Further Provisions shall remain in this
Agreement for the term hereof; provided further, that no Further Provisions
shall terminate as described above to the extent such Further Provisions are
included within the instruments or agreements pursuant to which such related
Additional Senior Indebtedness is refinanced. Each of QUALCOMM and Alcatel shall
be permitted to exercise their rights under this Section 2.04(b) any number of
times of so long as QUALCOMM or Alcatel, as the case may be, shall be a Senior
Lender or shall be providing credit support to any Senior Lender with respect to
the Senior Indebtedness of such Senior Lender.

             (c) Any and all liens, collateral assignments, security interests
and charges which are to be given by the Borrower Group or their shareholders in
connection with such Additional Senior Indebtedness ("Additional Collateral")
shall be granted to the Collateral Agent (and the Security Documents shall be
amended or supplemented accordingly, or further security documents shall be
executed and delivered by the Borrower Group to grant such Additional Collateral
to the Collateral Agent), so that, following the issuance of such Additional
Senior Indebtedness, all of the Senior Indebtedness will be secured on a pari
passu basis.

             (d) Each member of the Borrower Group shall execute and deliver a
Guaranty Agreement in favor of the Additional Senior Indebtedness Lender in such
a manner that the Additional Senior Indebtedness is guaranteed thereunder to the
same extent as the other Senior Indebtedness at the time outstanding is
guaranteed; provided, however, that, the Company may arrange for a guaranty or
guarantees of such Additional Senior Indebtedness from a third party or parties,
other than other members of the Borrower Group (a "Third Party Guarantor")
without providing for a similar guaranty or guarantees of other Senior
Indebtedness, so long as (i) any representations, warranties, covenants or
defaults included in any reimbursement or similar agreement between any member
of the Borrower Group and the Third Party Guarantor shall constitute Further
Provisions for purposes of clause (b) of this Section 2.04, and (ii) no
collateral or other security may be given to such Third Party Guarantor by any
member of the Borrower Group other than in respect of subrogation rights, if
any, which such Third Party Guarantor may have in the Collateral and the
Security Documents, if and to the extent that it makes payments under such
guaranty.

             (e) At least five days prior to the issuance of the Additional
Senior Indebtedness, the Borrower Group shall have delivered to each
Administrative Agent a certificate (i) describing such Additional Senior
Indebtedness, (ii) stating that no Default or Event of Default has occurred and
is then continuing hereunder after giving full effect to the incurrence of such
Additional Senior Indebtedness, and (iii) stating that, following such issuance,
the Borrower Group will be in compliance with the provisions of this Section
2.04 and with the provisions of Section 6.04(d).

             (f) All of the conditions precedent to the Initial Disbursement
under the applicable Credit Agreement for such proposed Additional Senior
Indebtedness shall have been satisfied or waived pursuant to the terms of such
Credit Agreement.

                                       5
<PAGE>
        2.05 PREPAYMENTS.

             (a) Prepayments of Senior Indebtedness shall be permitted to the
extent provided in the applicable Credit Agreement and to the extent provided
below.

             (b) Any prepayment of the principal amounts of any Senior
Indebtedness (other than (i) a prepayment of Non-Vendor Financing, (ii) a
prepayment of vendor financing from financing provided or supported by an export
credit agency or (iii) a prepayment made under a revolving credit or similar
facility, including a voluntary prepayment of a Loan the proceeds of which were
used for the payment of VAT, provided that the lender's commitment thereunder is
not permanently reduced at the time of such prepayment) shall be accompanied by
a prepayment, on a Pro Rata Payment basis, of the principal amounts of all other
Senior Indebtedness then outstanding, (which prepayments shall be made
simultaneously unless any such Senior Indebtedness does not permit such
prepayment at such time or would otherwise require a prepayment or break-funding
penalty, in which case such prepayment amounts, at the option of the Company,
may be deposited with the applicable Administrative Agent, invested in Permitted
Investments, and applied to the prepayment of such Senior Indebtedness on the
first date permitted or as to which no prepayment or break-funding penalty would
be imposed) which prepayment (unless the option described in the foregoing
parenthetical shall be exercised) shall be accompanied by the full payment of
any prepayment premium, break-funding amounts or other amounts due and payable
under the applicable Credit Agreement in connection with such prepayment;
provided, that (x) no such prepayment of any other Senior Indebtedness shall be
required if the Senior Lenders holding such Senior Indebtedness agree to waive
such prepayment or if the Credit Agreement governing such Senior Indebtedness
does not permit such prepayment and (y) the amount of the Senior Indebtedness
which would be so prepaid (but for the foregoing clause (x)) shall not be
applied to the other Senior Indebtedness then outstanding.

             (c) Any prepayment of principal on any Senior Indebtedness as
described in Section 2.05(b) shall be accompanied in each case with the full
payment of all accrued and unpaid interest on such Senior Indebtedness to the
extent required under the applicable Credit Agreement.

             (d) Subject to SECTION 2.05(b), any prepayment of any Senior
Indebtedness which is made from the proceeds of other Indebtedness ("Refinancing
Indebtedness") may be made on a non-Pro Rata Payment basis between or among
Senior Indebtedness; provided, however, that the documentation under which such
Refinancing Indebtedness (other than Refinancing Indebtedness provided or
supported by an export credit agency) is issued shall provide that Senior
Indebtedness may be prepaid by the Company on a non-Pro-Rata Payment basis to
the same extent as is set forth in this Section 2.05.

        2.06 PAYMENTS.

             (a) On each Payment Date, the Company shall make the scheduled
principal repayments of Senior Indebtedness due on such Payment Date except to
the extent that such repayments have been prepaid. Principal of the Senior
Indebtedness shall be payable in accordance with the applicable Credit Agreement
on the terms and conditions set forth therein. If two or more Credit Agreements
set forth the same Payment Date at any one time, and the

                                       6
<PAGE>
Company shall not have sufficient funds on such date to make full payment of the
Senior Indebtedness amounts due on such date under the applicable Credit
Agreements, then the Company shall make payments to the Senior Lenders under
such Credit Agreements on a Pro Rata Payment basis (determined without regard to
clause (z) of the proviso of the definition of "Pro Rata Payment") in respect of
the amounts due on such date.

             (b) On each Payment Date, the Company shall pay accrued and unpaid
interest on the unpaid principal amount of the Senior Indebtedness outstanding
under each Credit Agreement in accordance with the terms of the applicable
Credit Agreement.

             (c) All payments due under any Credit Agreement shall be made by
the Company pursuant to the terms of the applicable Credit Agreement, in
Dollars, as required under the applicable Credit Agreement, and in immediately
available funds. Subject to the provisions of the Collateral Agency Agreement
and Intercreditor Agreement, the relevant Administrative Agent shall apply each
payment with respect thereto received by it in accordance with such Credit
Agreement.

             (d) If at any time at which any Obligations are payable to a Senior
Lender such Senior Lender receives insufficient funds pursuant to the applicable
Credit Agreement to pay in full all Obligations payable to such Senior Lender at
such time, the funds so received by such Senior Lender at such time shall be
deemed to be applied as follows:

                 (i) FIRST, to interest (including post-default interest) on
the Senior Indebtedness held by such Senior Lender;

                 (ii) SECOND, to principal of the Senior Indebtedness held by
such Senior Lender; and

                 (iii) THIRD, to fees, commissions, indemnities, expenses and
all amounts (other than principal of and interest on the Senior Indebtedness)
payable to such Senior Lender.

        2.07 SWAP AGREEMENTS AS SENIOR INDEBTEDNESS. Subject to any other
restrictions otherwise contained in this Common Agreement, the Company may enter
into interest rate and Peso-Dollar currency swap agreements (including collars,
caps and similar derivative arrangements) through the execution of an agreement,
(a "Swap Agreement") with an Eligible Swap Counterparty; provided, however, that
all interest rate swap agreements shall be bona fide hedges of floating rate
exposure for a fixed rate obligation, shall have at any time a notional amount
not greater than the Company's floating rate Indebtedness outstanding at such
time, and cover a period not exceeding four years from any date of
determination; provided, further, that all currency swap agreements shall be
forward contracts, for a term not exceeding one year, for the purchase of
Dollars or Pesos with notional amounts in aggregate not exceeding the Company's
projected operating expenses coming due over the three month period following
the date upon which such currency swap agreement is entered. The Company may
incur obligations under the Swap Agreement without regard to any limitations
imposed under Section 2.04 or Section 6.04. The obligations of the Company under
any such Swap Agreement may, upon notice by the Company to the Collateral Agent,
be secured by the Collateral on a pro-

                                       7
<PAGE>
rata basis to the same extent as would be the case if such obligations of the
Company under such Swap Agreement were deemed to be Additional Senior
Indebtedness hereunder, in which event the Security Documents shall be amended
to the extent necessary to provide for such pro-rata treatment of the swap
counterparty in respect of such Collateral; provided, however, that in such
event (i) no member of the Borrower Group shall, if the swap counterparty is
secured as aforesaid, grant to such swap counterparty any other Lien upon the
property or assets of the Borrower Group, (ii) the amount secured by the
Collateral, as described in the preceding sentence, shall be the amount owed
from time to time by the Company under the Swap Agreement, and (iii) the swap
counterparty, in its capacity as such, shall not otherwise be, or be deemed to
be, a Senior Lender hereunder and shall have no voting rights with respect to
any matter described herein or in the other Financing Agreements. Upon delivery
of the notice to the Collateral Agent as aforesaid, accompanied by a certificate
of the Chief Financial Officer of the Company stating that no Default or Event
of Default has occurred and is then continuing, the Collateral Agent shall amend
or supplement the Security Documents to implement the provisions of this Section
2.07.

                                    ARTICLE 3

                              CONDITIONS PRECEDENT

        3.01 CONDITIONS PRECEDENT TO INITIAL DISBURSEMENT. Subject to Section
3.05, the obligation of a group of Senior Lenders under a particular Credit
Agreement to make an Initial Disbursement shall be subject to the satisfaction
or waiver by each such Senior Lender of the conditions set forth below:

             (a) SYSTEM AGREEMENTS. The Administrative Agents and the Relevant
Parties shall have received a true and complete copy of each System Agreement
(other than the Vendor Agreements) and all supplements, clarifications or
amendments thereto, all of which shall be in form and substance satisfactory to
such Administrative Agents (acting on behalf of, and at the instructions of, the
Senior Lenders under their respective Credit Agreements) and Relevant Parties
and certified as of the Initial Disbursement Date by an Authorized Officer of
the Company (or, in the case of the Joint Venture Agreement, by an Authorized
Officer of Holdings) with respect to the following matters: (A) such System
Agreement is a true, complete and correct copy of such System Agreement, (B)
such System Agreement is in full force and effect, (C) since the date of
execution thereof, such System Agreement has not been amended, modified,
clarified or supplemented, nor has any waiver been granted thereunder, except
for those amendments, modifications, clarifications, supplements or waivers,
certified copies of which have been delivered to the Administrative Agents
pursuant to (A) above, and (D) no party to any System Agreement is or, but for
the passage of time, giving of notice, fulfillment of any condition or any
combination thereof would be, in breach of any obligation thereunder (provided
that the certification of the Company's Authorized Officer as to the matters set
forth in this clause (D) may be made to the best knowledge of such Authorized
Officer with respect to Persons that are not members of the Borrower Group).

             (b) FINANCING AGREEMENTS. Each Financing Agreement required to be
executed and delivered on or prior to the Initial Disbursement Date (i) shall
have been executed and delivered, and (ii) shall be in full force and effect.

                                       8
<PAGE>
             (c) SECURITY INTERESTS. (i) All security interests intended to be
created pursuant to the Security Documents shall have been created and, where
appropriate, registered or other action taken to create a security interest and
Lien over the relevant asset or property in favor of the Collateral Agent, for
the benefit of the Senior Lenders, (ii) all fees and duties shall have been paid
in connection with such registration and (iii) all such security interests shall
(except as otherwise provided in any opinion of counsel accepted pursuant to
paragraph (f) below) be valid and enforceable and constitute first priority
perfected security interests, and be enforceable against the members of the
Borrower Group and any subsequent lien or (including a judgment lien or), holder
of a fixed or floating charge, or transferee for or not for value, in bulk, by
operation of law, for the benefit of creditors, or otherwise, subject in any
such case only to Permitted Liens described in Section 6.01. In addition to the
above, the Collateral Agent shall have received (w) evidence issued by the
Public Registry of Commerce of the Federal District of Mexico that the Original
Mortgage has been recorded in its books and records, (x) if then available,
evidence issued by the Telecommunications Registry of Mexico that the Original
Mortgage has been recorded in its books and records, (y) a copy of the second
testimony of the public deed evidencing the execution and delivery of Amendment
No. 1 to the Mortgage, together with a certificate of the relevant Public Notary
that the first testimony of such public deed has been presented for, and
accepted for, registration at the Public Registry of Commerce of the Federal
District of Mexico and the Telecommunications Registry of Mexico, and (z) if
then available, evidence issued by each such Registry that Amendment No. 1 to
the Mortgage has been recorded in its books and records.

             (d) PROCESS AGENTS. The Administrative Agents and the Relevant
Parties shall have received evidence that (i) each of the Company, Holdings and
each other Guarantor shall have duly and irrevocably appointed an agent for
service of process in New York, (ii) such agent shall have accepted such
appointment and (iii) all fees scheduled to accrue to each such agent for
service of process through and including the date following seven years after
the Initial Disbursement Date shall have been paid in full.

             (e) INSURANCE.

                 (i) The Borrower Group shall have obtained the insurance
described in Schedule 5.03 on the terms and conditions set forth therein and
from financially sound and reputable insurers and reinsurers and meeting the
criteria set forth in Schedule 5.03, and shall have provided to the
Administrative Agents and the Relevant Parties a certificate of an Authorized
Officer of the Company to that effect. The evidence required to be delivered by
the Company pursuant to this clause (i) or clause (ii) below shall confirm that
all premiums due and payable as of the Initial Disbursement Date have been paid
and no insurance premiums are overdue. The Administrative Agents and the
Relevant Parties shall have received evidence that each insurance policy
referred to in Schedule 5.03 has named the Collateral Agent; for the benefit of
the Secured Parties, as a co-beneficiary or co-payee under such policy together
with the Company (or other member of the Borrower Group), as their respective
interests may appear.

                 (ii) The Insurance Consultant shall have provided the
Administrative Agents and the Relevant Parties with a report in form and
substance acceptable to the Administrative Agents and the Relevant Parties which
shall confirm the matters set forth in clause (i) above, indicate that such
insurance and reinsurance is effective and provides adequate

                                       9
<PAGE>

coverage for the System and the Business and cover such other matters as any
Administrative Agent may have reasonably requested.

             (f) OPINIONS OF COUNSEL. The Administrative Agents and the Relevant
Parties shall have received the following legal opinions in the English language
addressed to each Senior Lender, each Agent and each Relevant Party:

                 (i) the opinion of White & Case LLP, special New York counsel
to the Borrower Group, substantially to the effect set forth in Appendix B-1;

                 (ii) the opinion of White & Case, S.C., Mexican counsel to the
Borrower Group, substantially to the effect set forth in Appendix B-2.

             (g) CORPORATE DOCUMENTS. The Administrative Agents and the Relevant
Parties shall have received for each member of the Borrower Group, Charter
Documents, good standing certificates (to the extent applicable to such Person
and available in such Person's jurisdiction of formation), incumbency
certificates and resolutions in each case certified by the appropriate officers
of such Person. Such resolutions shall, in each case, approve such Person's
participation in the transactions contemplated by this Agreement and the
applicable Credit Agreement, and the granting of Liens in connection therewith,
and shall authorize the execution, delivery and performance by such Person of
the Financing Agreements to which such Person is a party.

             (h) PLEDGES OF STOCK.

                      (A) (i) The Pledge Agreement executed on October 31, 1998
by and among Holdings, the Company, Pegaso PCS and Qualcomm in order to create a
pledge on the shares issued by Pegaso PCS and Personnel Co. (the "PCS/Recursos
Pledge Agreement") shall have been amended in form satisfactory to the
Administrative Agents and the Relevant Parties to include the Collateral Agent,
acting on behalf of and for the benefit of the Secured Parties, as beneficiary
of such agreement and (ii) the Pledge Agreement executed on October 31, 1998 by
and among Holdings, Pegaso PCS and Qualcomm in order to create a pledge on the
shares issued by the Company (the "Sistemas Pledge Agreement") shall have been
amended in form satisfactory to the Administrative Agents and the Relevant
Parties to include the Collateral Agent, acting on behalf of and for the benefit
of the Secured Parties, as beneficiary of such agreement.

                      (B) Each of the Sponsors shall have executed and delivered
the Sponsors Negative Pledge Agreement which shall effectively prohibit the
granting of any Lien over any such Capital Stock by any such Sponsor.

             (i) BUSINESS PLAN. The Administrative Agents and the Relevant
Parties shall have received (1) a copy of the Original Business Plan; and (2) a
copy of the Final Business Plan, certified by an Authorized Officer of the
Company as having been approved by the Board of Directors of Holdings.

             (j) STAMP DUTIES; TAXES; ETC. The Administrative Agents and the
Relevant Parties shall have received evidence satisfactory to them that all
required stamp duties,

                                       10
<PAGE>

registration fees, filing costs and other charges in connection with the
execution, delivery, filing and/or perfection of any Transaction Document
required to be stamped, registered or filed have been paid in full or an
appropriate exemption therefrom shall have been obtained, except to the extent
that the Company has provided the Administrative Agents and the Relevant Parties
with assurances satisfactory to them that such duties, fees, costs and charges
will be paid in full with the proceeds of the Initial Disbursement.

             (k) CONSENTS, AMENDMENTS, ASSIGNMENTS AND ACKNOWLEDGMENTS. All
consents, amendments, assignments, acknowledgments, documents or other evidence
or information (including the Consents) necessary or desirable in connection
with the System, the Collateral and the assignment as security of the System
Agreements to the Collateral Agent (including all approvals of any Governmental
Authority or any third party) shall have been duly: obtained, executed and
delivered, including, without limitation, consents relating to the Vendor
Agreements, the Operator Agreement, the GTE Operator Agreement and the
Interconnection Agreements.

             (l) SYSTEM COMPLIANCE. The System shall be in compliance in all
respect with all Applicable Laws as in effect upon the Closing Date and the
Administrative Agents arc the Relevant Parties shall have received a certificate
to such effect from an Authorized Officer of the Company.

             (m) FINANCIAL STATEMENTS. The Administrative Agents and the
Relevant Parties shall have received the most recent financial statements of the
Borrower Group (on consolidated basis), together with a certificate from the
Chief Financial Officer of Holdings stating that no material adverse change in
the consolidated assets, liabilities, operations or financial condition of the
Borrower Group has occurred from those set forth in the financial statements
provided pursuant to this clause (m), except as otherwise provided (which
exceptions shall also be in form and substance satisfactory to each
Administrative Agent) in any such certificate with respect to such financial
statements.

             (n) AUTHORIZATION TO INDEPENDENT ACCOUNTANT. The Chief Financial
Office of Holdings shall have authorized the Independent Accountant in writing
to communicate directly with the Relevant Parties, the Alcatel Administrative
Agent and the Qualcomm Administrative Agent (provided that such authorization
shall provide that no such communications shall occur with the Independent
Accountant unless and until such Relevant Party or such Agent has, prior
thereto, notified such Chief Financial Officer of Holdings that it intends to so
communicate with the Independent Accountant, and requests that such officer so
notify such Independent Accountant) and shall have furnished such Administrative
Agents and the Relevant Parties with a copy of such authorization, which
authorization shall be irrevocable until all Obligations have been fully and
finally paid.

             (o) FEES AND EXPENSES. The Company (or other members of the
Borrower Group) shall have paid all fees and expenses due to any Secured Party
(including all reasonable fees and expenses of legal counsel for any of the
foregoing to the extent the Company (o~ another member of the Borrower Group) is
obligated to pay such expenses), on or before the Closing Date, or arrangements
satisfactory to such Secured Party, shall have been made for the payment of such
fees and expenses from the proceeds of the Initial Disbursement.

                                       11
<PAGE>

             (p) INITIAL CREDIT FACILITY CONDITIONS PRECEDENT. All of the
conditions set forth in each of Article 6 of the Alcatel Credit Agreement and
Section 4 of the Qualcomm Credit Agreement, shall have been satisfied or waived
in accordance with the terms of each such agreement.

             (q) EXISTING EQUITY. The Administrative Agents shall have received
evidence that not later than the Closing Date that (i) the paid-in equity (in
the form of equity cash contributions made by the Existing Shareholders and the
New Shareholders of Holdings in consideration for Capital Stock issued by
Holdings to such shareholders) was not less than the aggregate amount of
$300,000,000 as of the date or dates contributed, (ii) not less than 99% of such
cash has been contributed by Holdings to the Company as equity, and (iii) the
remainder of such cash, if any, has been contributed by Holdings to either or
both of Pegaso PCS and/or Personnel Co. as equity.

             (r) EQUITY COMMITMENTS. The Administrative Agents and the Relevant
Parties shall have received evidence of irrevocable cash Equity Commitments by
the Original Mexican Shareholders in the aggregate amount of (i) $50,000,000 to
be contributed, delivered and paid not later than July 31, 1999 and (ii)
$50,000,000 to be contributed, delivered and paid not later than August 30,
2000; there shall have been no default under any such Equity Commitments; there
shall have been no bankruptcy, insolvency or similar proceedings commenced or
initiated by or against any Original Mexican Shareholder making such Equity
Commitment; and each Sponsor, Holdings and the Company shall have executed an
Assignment Agreement with respect to such Equity Commitments in form and
substance satisfactory to the Required Voting Parties.

             (s) LICENSES AND LICENSE FEE. The Licenses shall be in full force
and effect; such Licenses shall provide all of the Permits required to operate
the System in accordance with the Original Business Plan, and in those
geographical areas referred to in the Original Business Plan; and all fees,
costs and expenses payable in connection with the granting or maintaining of
such Licenses (including any VAT taxes or charges relating thereto) shall have
been paid in full from Existing Equity.

             (t) MINIMUM ASSETS; MORTGAGED PROPERTY. The Administrative Agents
and the Relevant Parties shall have received (i) a certificate of an Authorized
Officer of the Company to the effect that (A) the Company owns, both legally and
beneficially, title to the Minimum Assets, and (B) all such Minimum Assets are
subject to the Lien created by the Security Documents, and (ii) an undertaking
by Holdings, and Holdings hereby undertakes, that Holdings holds and will
continue to hold as its only assets the Capital Stock of the Company, Pegaso PCS
and Personnel Co, the rights to receive equity as provided in the Equity
Commitments (and with all debt or other obligations owing from any such entity
to Holdings having been contributed to such entity as additional capital) and
the assets referred to in the parenthetical in Section 6.04(h)(C).

             (u) VARIOUS CONSENTS AND APPROVALS. The Administrative Agents and
the Relevant Parties shall have received all Permits, material consents,
approvals and releases of all appropriate Governmental Authorities and all other
third parties in connection with the transactions contemplated by the
Transaction Documents, including (without limitation)

                                       12
<PAGE>

all required consents, authorizations, approvals or releases from contractual
counterparties of members of the Borrower Group required to be obtained to
permit the Lien of the Collateral Agent, acting for the benefit of the Secured
Parties, in the Collateral.

             (v) SUPPLEMENT TO ALCATEL COMMITMENT LETTER. The Company shall have
received a supplemental letter updating and confirming the terms of the Alcatel
Commitment Letter and the conditions of for effectiveness. Such supplemental
letter shall be dated no earlier than five Business Days prior to the date
hereof and accurately reflect the terms and conditions of the commitment under
the Alcatel Commitment Letter as of such date, and the Administrative Agents
shall have received a fully-executed copy thereof, the substance of which shall
be reasonably satisfactory to the Qualcomm Administrative Agent.

             (w) GUARANTY TRUST AGREEMENT AND RELATED DOCUMENTS AND APPROVALS.
Holdings shall deliver to the Administrative Agents and the Relevant Parties the
Guaranty Trust Agreement duly executed and delivered by each of the parties
thereto, together with evidence in writing that the Secretaria de Comunicaciones
y Transportes have approved the Guaranty Trust Agreement and all appropriate
documentation and instruments, which documentation and instruments shall have
been duly executed, in order to effectively transfer title to the trustee
thereunder, for the benefit of the Collateral Agent, to all of the Capital Stock
in the Company, Pegaso PCS and Personnel Co. as held by Holdings on the Closing
Date, which Capital Stock shall (except to the extent described in the last
sentence of this Section 3.01(w)) constitute 100% of the issued and outstanding
Capital Stock of each of the Company, Pegaso PCS and Personnel Co. The transfer
by Holdings of its title to the Capital Stock of the Company, Pegaso PCS and
Personnel Co., as applicable, to the trustee under such Guaranty Trust Agreement
shall have been registered in the shareholders' registry book of the Company,
Pegaso PCS and Personnel Co., respectively. Concurrently therewith, the parties
to the PCS/Recursos Pledge Agreement and the Sistemas Pledge Agreement will
amend said agreements to provide that said agreements only create a pledge on
the single share of each of Pegaso PCS, Personnel Co. and the Company not owned
by Holdings but which is owned by another member of the Borrower Group.

             (x) CONSENTS FROM TELMEX AND TELNOR. The Company will deliver to
the Administrative Agents and the Relevant Parties a Consent duly executed and
delivered by each of TelMex and TelNor with respect to their respective
Interconnection Agreements.

             (y) CLARIFICATION WRIT. The Company shall have filed or have caused
to be filed with the Ministry of Telecommunications of Mexico a clarification
writ with respect to the writ filed on November 30, 1998, and the said Ministry
shall have issued an order, to the effect that (i) Pegaso PCS is authorized to
act on behalf of the Company under the Pegaso PCS Services Agreement as a
"comisionista," not as a "comercializadora" and (ii) all accounts receivable
derived from the exploitation and use of the Licenses are the property of the
Company, not Pegaso PCS.

             (z) POST-CLOSING AGREEMENT. The Company and each other member of
the Borrower Group shall have executed and delivered a post-closing agreement
(the "Post-Closing Agreement") dated as of the date hereof in form and substance
satisfactory to the Administrative Agents and the Relevant Parties with respect
to the satisfaction of certain of the

                                       13
<PAGE>

closing conditions contained herein or in the Credit Agreements within a
specified period of time after the Closing Date.

        3.02 CONDITIONS PRECEDENT TO ALL DISBURSEMENTS. Subject to Section 3.05
the obligation of any Senior Lender to make any Disbursement (including the
Initial Disbursement) shall be subject to the satisfaction or waiver in
accordance with the terms of the relevant Credit Agreement, prior to and
concurrently with each such Disbursement, of each of the conditions set forth
below:

             (a) NOTICE OF BORROWING. The Company shall have delivered to the
applicable Administrative Agent and the Relevant Parties a notice of borrowing
from an Authorized Officer of the Company if and to the extent required as a
precondition to the Disbursement of a Loan in the applicable Credit Agreement.

             (b) NO DEFAULT; REPRESENTATIONS AND WARRANTIES. Immediately before
and after giving effect to such Disbursement:

                 (i) no Default or Event of Default shall have occurred and be
continuing; and

                 (ii) all representations and warranties made by each member of
the Borrower Group, each Guarantor and each Sponsor in each of the Financing
Agreements to which such Person is a party (except, as to any Agent or Senior
Lender, any Credit Agreement other than the Credit Agreement by and among such
Person, such Agent and such Senior Lender), shall be true, complete and correct
in all material respects with the same force and effect as though such
representations and warranties had been made on and as of the date of such
Disbursement, except for any representations and warranties herein or in any
Financing Agreement which expressly relate only to an earlier date.

             (c) CREDIT AGREEMENT CONDITIONS PRECEDENT. In the case of a
Disbursement under any Credit Agreement, the additional conditions precedent (if
any) to such Disbursement set forth in such Credit Agreement shall have been
satisfied or waived by the applicable Senior Lenders on or before the date of
such Disbursement.

             (d) FEES AND EXPENSES. The Borrower Group shall have paid or made
arrangements for payment (including, to the extent permitted, arrangement for
payment out of Disbursements) of all fees, expenses and other charges then
payable by it hereunder or under any other Financing Agreement in a manner
satisfactory to the relevant payee.

        3.03 NO WAIVER.

             (a) Subject to Section 3.05, no course of dealing or waiver by any
Senior Lender or any Agent in connection with any condition of Disbursement
under this Agreement or any Credit Agreement shall impair any right, power or
remedy of any such Senior Lender or Agent with respect to any other condition of
Disbursement, or be construed to be a waiver of any such other condition; nor
shall the action of any Senior Lender or any Agent in respect of any
Disbursement affect or impair any right, power or remedy of any Senior Lender or
the Collateral Agent in respect of any other Disbursement.

                                       14
<PAGE>

             (b) Subject to Section 3.05, unless otherwise notified to the
Company by a Senior Lender or the Collateral Agent and without prejudice to the
generality of Section 3.03(a), the right of any Senior Lender or any Agent to
require compliance with any condition under this Agreement or relevant Credit
Agreement which may be waived in accordance with the provisions of such
applicable Credit Agreement is expressly preserved for the purpose of any
subsequent Disbursement.

        3.04 DELIVERY OF CERTIFICATES, ETC. All of the certificates, legal
opinions, communications, notices and other documents and papers referred to in
Sections 3.01 or 3.02 to be delivered thereunder, unless otherwise specified,
shall be delivered in sufficient counterparts for distribution to each of the
Senior Lenders and, unless otherwise specified, shall be in form and substance
reasonably satisfactory to the Agent receiving the same. Notwithstanding the
foregoing, all of the certificates, legal opinions, communications, notices and
other documents and papers referred to in Sections 3.01 and 3.02 shall be
addressed to each Senior Lender.

        3.05 BENEFICIARIES OF CONDITIONS TO DISBURSEMENTS. Notwithstanding any
other provision of this Article 3, any waiver of the conditions precedent (i) to
the Initial Disbursement or any subsequent Disbursement under the Alcatel Credit
Agreement must be waived by each Senior Lender under the Alcatel Credit
Agreement, but no Senior Lender under any other Credit Agreement shall have any
right or benefits thereto or any such waiver rights thereunder, (ii) to the
Initial Disbursement or any subsequent Disbursement under the Qualcomm Credit
Agreement must be waived by each Senior Lender under the Qualcomm Credit
Agreement, but no Senior Lender under any other Credit Agreement shall have any
right or benefit thereto or any such waiver rights thereunder, and (iii) to the
Initial Disbursement and any subsequent Disbursement under any Credit Facility
relating to Additional Senior Indebtedness must be waived by the Senior Lender
(or all or such percentage of the Senior Lenders) as provided in such Credit
Agreement, but no Senior Lender under the Alcatel Credit Facility, no Senior
Lender under the Qualcomm Credit Agreement and no Senior Lender under any other
Additional Senior Indebtedness then outstanding shall have any right or benefits
thereto or any such waiver rights thereunder.

                                    ARTICLE 4

                         REPRESENTATIONS AND WARRANTIES

        Each member of the Borrower Group, jointly and severally, makes the
representations and warranties contained in this Article 4 for the benefit of
each Senior Lender, each Agent and each Relevant Party. Each such representation
and warranty shall be deemed made for the benefit of any Senior Lender at the
times (and only the times) and to the extent (and only to the extent) specified
in the Credit Agreement to which such Senior Lender is party. The
representations and warranties contained herein shall survive the execution and
delivery of this Agreement. To the extent that any schedule referred to in this
Article 4 shall need to be updated in order to permit such representation to be
true and correct when made or deemed made, the Company or other member of the
Borrower Group shall provide the Agents with such updated schedule in writing
prior to the date such representation is made or deemed made and shall request
approval of such updated schedule in accordance with the provisions of the
Intercreditor Agreement. Unless any such schedule is updated and approved in
accordance with the

                                       15
<PAGE>

provisions of the Intercreditor Agreement, no change to any existing schedule
shall be deemed to have been made.

        4.01 CORPORATE STATUS. Each member of the Borrower Group (i) is a
sociedad anonima de capital variable duly organized, validly existing and in
good standing under the laws of Mexico, (ii) is duly authorized to do business
in Mexico and in each other jurisdiction where the character of its properties
or the nature of its activities makes such qualification necessary (except for
any authorization the absence of which does not constitute a Material Adverse
Effect) and (iii) has the requisite power and authority to (a) own or possess
all of its property and assets, (b) transact the business in which it is engaged
or proposes to be engaged (including the Business), (c) incur and guarantee
Indebtedness and create Liens, (d) execute, deliver and perform its obligations
under the Transaction Documents to which it is a party and (e) do all things to
be done by it in respect of the construction, maintenance and operation of the
System and to consummate the transactions contemplated by this Agreement and the
other Transaction Documents.

        4.02 CORPORATE POWER AND AUTHORITY. Each member of the Borrower Group
has taken all corporate action necessary to authorize the execution, delivery
and performance by it of each of such Transaction Documents as have been
executed and delivered by such member as of each date this representation and
warranty is made or deemed made. Each member of the Borrower Group has, or in
the case of the Transaction Documents other than this Agreement and future
Credit Agreements by the Initial Disbursement Date will have, duly executed and
delivered each of the Transaction Documents to which it is a party.

        4.03 VALID AND BINDING OBLIGATION. This Agreement, when executed and
delivered by the members of the Borrower Group on or before the date this
representation is made or deemed made constitutes or, in the case of each other
Transaction Document to which it is a party, when executed and delivered by it,
will constitute, the legal, valid and binding obligation of such member
enforceable in accordance with its terms, except as the enforceability thereof
may be limited by (i) applicable bankruptcy, insolvency and other similar laws
affecting creditors' rights generally and (ii) general equitable principles
regardless of whether the issue of enforceability is considered in a proceeding
in equity or at law.

        4.04 NO VIOLATION. None of the execution and delivery by any member of
the Borrower Group of this Agreement and the other Transaction Documents to
which it is party, the consummation of the transactions contemplated hereby and
thereby or compliance with the terms and provisions hereof and thereof does or
will (i) contravene or violate its Charter Documents or any Applicable Law, (ii)
contravene or result in any breach or constitute any default under any order,
writ, injunction, judgment or decree of any court or other tribunal or
Governmental Authority or (iii) contravene or result in any breach or constitute
any default under, or result in or require the creation of any Lien upon any of
its revenues, properties or assets under any agreement or instrument to which it
is a party or by which it or any of its revenues, properties or assets may be
bound, except for Permitted Liens or (iv) require any permit, consent or
approval of any Person other than any such permits, consents or approvals which
have been obtained and are in full force and effect; provided, however, that (a)
with respect to the System Agreements, the above representation shall apply only
to the extent that any such contravention, violation or breach would result in a
Material Adverse Effect, and (b) it is understood that any remedial

                                       16
<PAGE>

action taken under the Security Documents, (y) to the extent that it results or
would result, directly or indirectly, in a transfer of the Licenses to a party
other than the Company, may require certain authorizations, consents or
approvals by Governmental Authorities under the Mexican Telecommunications Law,
and (z) to the extent that it results in Capital Stock of the Company being
transferred to a non-Mexican entity, may violate Applicable Law and/or require
Permits relating to restrictions on foreign ownership of Mexican companies.
Solely for purposes of this Section 4.04, the term "Applicable Law" shall be
deemed to be limited to those Applicable Laws in effect on the date such
representation is made.

        4.05 PERMITS. All authorizations, consents and permits necessary under
Applicable Law in connection with (i) the clue execution and delivery of, and
performance by each member of the Borrower Group of its obligations under each
Transaction Document to which it is a party in effect or required to be in
effect as of each date this representation is made or deemed made, (ii) the
grant by the members of the Borrower Group of the Liens pursuant to the Security
Documents and the validity, enforceability and perfection thereof and the
exercise by the Collateral Agent of rights and remedies thereunder, and (iii)
the care, custody, control, construction, development and operation of the
System as contemplated by the Business Plan which are required to be obtained on
or prior to the date this representation is made or deemed made (other than, in
the case of this clause (iv), such consents, authorizations and permits the
absence of which would not constitute a Material Adverse Effect), in each case
have been obtained by such members (hereinafter, collectively the "Permits").
Each of such Permits has been duly obtained or made, is validly issued, is in
full force and effect, and is held in the name of the Person identified in such
Permit and is free from any condition or requirement compliance with which would
constitute a Material Adverse Effect or which the applicable member of the
Borrower Group does not reasonably expect to be able to satisfy.

        4.06 FINANCIAL STATEMENTS; FINANCIAL CONDITION; UNDISCLOSED LIABILITIES;
ETC.

             (a) Each of the financial statements of the Borrower Group
delivered pursuant to Sections 3.01 (m) and 5.01(a) is true, complete and
correct in all material respects as of the date of such statements and fairly
presents the financial condition, results of operations and cash flows as of the
date thereof. Such financial statements have been prepared in accordance with
GAAP on a consistent basis except as may otherwise be noted therein.

             (b) Except as fully reflected in (i) the financial statements
referred to in Section 3.01(m), (ii) the contingent liabilities set forth on
Schedule 4.06 and (iii) the obligations set forth in the Transaction Documents,
there was, as of the Closing Date, no liability or obligation with respect to
any member of the Borrower Group of any nature whatsoever (whether absolute,
accrued, contingent or otherwise and whether or not due) for the period to which
such respective financial statements relate which, either individually or in the
aggregate, constitutes a Material Adverse Effect. As of the Closing Date, no
member of the Borrower Group knows of any reasonable basis for the assertion
against any such member of any liability or obligation of any nature whatsoever
(whether absolute, accrued, contingent or otherwise and whether or not due) for
such relevant period that is not (x) fully reflected in the financial statements
referred to in Section 3.01(m), (y) set forth in Schedule 4.06 or (z) an
obligation set

                                       17
<PAGE>

forth in or contemplated by the Transaction Documents, which either individually
or in the aggregate, constitutes a Material Adverse Effect.

             (c) Since the date of the last financial statements of the Borrower
Group submitted in accordance with Section 5.01(a), there has been no material
adverse change in the condition (financial or otherwise) or operations of the
Borrower Group (taken as a whole), except for the operating losses contemplated
by the most recent Business Plan submitted pursuant to Section 5.01 (d).

        4.07 LITIGATION; LABOR DISPUTES.

             (a) No member of the Borrower Group is in default with respect to
any order of any court, arbitrator, administrative agency or other Governmental
Authority, other than any order that is the subject of a Good Faith Contest or
other order the default under which, or the non-compliance with which, would not
result in a Material Adverse Effect. There is no injunction, writ, or
preliminary restraining order of any nature issued by an arbitrator, court or
other Governmental Authority directing that any of the transactions provided for
in any of the Financing Agreements not be consummated as herein or therein
provided. There is no action, suit, investigation or proceeding (including any
appeal by any Person of a Permit) by or before any court, arbitrator,
administrative agency or other Governmental Authority pending or, to the best
knowledge of each member of the Borrower Group, threatened against or affecting
any member of the Borrower Group (or any of such party's properties, revenues or
assets) which constitutes a Material Adverse Effect.

             (b) There are no strikes, slowdowns or work stoppages by the
employees of any member of the Borrower Group or any Vendor, on-going, or, to
the best knowledge of each such member, currently threatened, which constitute a
Material Adverse Effect.

        4.08 TAX RETURNS AND PAYMENTS.

             (a) Each member of the Borrower Group has filed all income tax and
other material tax returns required by Applicable Law to be filed by it and has
paid all Taxes and assessments payable by it which have become due other than
those subject to a Good Faith Contest. Each member of the Borrower Group has
paid or has provided reserves adequate in the reasonable judgement of the
management of Holdings and consistent with GAAP for the payment of all income or
other Taxes imposed on it by the Government of Mexico for all prior Fiscal Years
and accrued for the current Fiscal Year to the date hereof.

             (b) Except for those items set forth in Schedule 4.08, no
withholding Taxes are payable by the Company or any other member of the Borrower
Group, (under Applicable Law in existence as of the Closing Date), to any
Mexican Governmental Authority in connection with any amounts payable by the
Company or any other such member under or in respect of the Financing Agreements
as in effect on the Closing Date.

                                       18
<PAGE>

        4.09 CAPITALIZATION.

             (a) Schedule 4.09 sets forth the capitalization of Holdings and
each other member of the Borrower Group as of the date hereof, including (i)
authorized capital, (ii) the number of shares issued and outstanding and (iii)
the shareholders and number of shares and advances held by each such
shareholder. All of the issued and outstanding shares of Holdings (other than
treasury stock held by Holdings) and each other member of the Borrower Group are
duly and validly issued and non-assessable and fully paid. Neither Holdings nor
any other member of the Borrower Group has outstanding (a) any securities
convertible into or exchangeable for its share capital or (b) except as set
forth in Section 4.09(b) below, any rights to subscribe for or to purchase, or
any option for the purchase of, or any agreement, arrangement or understanding
providing for the issuance (contingent or otherwise) of, or any call, commitment
or claims of any character relating to, or any rights or claims that restrict
the transfer of, its share capital.

             (b) The Existing Equity, as of September 29, 1998, was $300,000,000
(or the Peso Equivalent thereof, determined as of the date or dates of
contribution). No Existing Shareholder or New Shareholder has any right
(contingent or otherwise) for the repayment or reimbursement of any of the
Existing Equity, nor any rights, contractual or otherwise, against Holdings (or
any other member of the Borrower Group) in respect of such Existing Equity,
other than rights to the shares of Capital Stock which have previously been
issued to the providers of such Existing Equity. Each of the Equity Commitments
constitutes the valid and enforceable obligation of the Original Mexican
Shareholders to subscribe for the Capital Stock of Holdings in the amounts and
on the date or dates specified in such Equity Commitments, and each such
obligation is (i) absolute and irrevocable, and (ii) not subject (directly or
indirectly) to any precondition or condition precedent except as set forth in
the Joint Venture Agreement. As of the date this representation is made (i)
there has been no amendment, supplement or modification of such Equity
Commitment, and (ii) there has been no waiver granted by Holdings under any such
Equity Commitment. Set forth in Schedule 4.09 is a true and complete listing of
each Original Mexican Shareholder and the amount of each Equity Commitment
required to be contributed by each such Original Mexican Shareholder as of the
Closing Date. The collateral assignments of the rights in respect of the Equity
Commitments by Holdings, the Company and the Sponsors to the Collateral Agent,
acting for the benefit of the Secured Parties, pursuant to the Assignment
Agreements are effective to allow the Collateral Agent to make demands
thereunder and to allow the Collateral Agent the right to enforce the
obligations of the Original Mexican Shareholders and Holdings, as applicable,
thereunder without any further action other than notice to the Original Mexican
Shareholders and Holdings, as applicable, and to commence appropriate legal
action on behalf of the Secured Parties against the Original Mexican
Shareholders and Holdings, as applicable.

        4.10 SUBSIDIARIES, MORTGAGE AND MINIMUM ASSETS.

             (a) Holdings is the legal and beneficial owner of 100% of the
Capital Stock of each of (i) the Company, (ii) Pegaso PCS and (iii) Personnel
Co. (the "Applicable Shares"). As of the Closing Date, Holdings does not own any
Capital Stock in any Person other than as set forth in the preceding sentence.
There are no Liens of any kind on any of the Applicable Shares other than
Permitted Liens, nor are there any restrictions on transfers of such

                                       19
<PAGE>

Applicable Shares, nor are there any agreements of any kind relating to the
voting of, or disposition of, such Applicable Shares (except as described in the
proviso to Section 4.04(iv)). As of the Closing Date, each of the Company,
Pegaso PCS and Personnel Co. has no Subsidiaries and does not otherwise control
any voting stock or any ownership interest in any other Person. All of the
Capital Stock of each Subsidiary of Holdings or of any other member of the
Borrower Group acquired after the date of this Agreement has been pledged by the
relevant party to the Collateral Agent for the benefit of the Secured Parties as
required by Section 5.14. Notwithstanding the other provisions of this Section
4.10(a), it is recognized that a single share of each of Pegaso PCS, Personnel
Co. and the Company is not owned by Holdings, but is owned by another member of
the Borrower Group.

             (b) As of the Closing Date, the Sponsors, collectively, own 100% of
the Capital Stock of Holdings (the "Holdings Shares"). There are no liens of any
kind on the Holdings Shares other than Permitted Liens, nor (except for such
agreements or restrictions as are set forth in the Joint Venture Agreement, in
the form in existence on the Closing Date, and in the Registration Rights
Agreement referred to therein, and as otherwise described in the proviso to
Section 4.04 (iv)) are there any restrictions on transfer of the Holdings
Shares, nor are there any agreements of any kind relating to the voting of, or
disposition of, such Holdings Shares, other than as set forth in the Joint
Venture Agreement and the Registration Rights Agreement.

             (c) The Company is the legal and beneficial owner of all of the
properties, assets and contract rights which are specifically described in the
Mortgage as being the subject of the Lien created by the Mortgage. The Mortgage
has the effect of creating, in favor of the Collateral Agent, for the benefit of
the Senior Lenders, a perfected and first priority Lien on all property, assets
and contract rights owned from time to time by the Company (including property
acquired by the Company after the date of execution, delivery and recording of
the Mortgage). Such properties, assets and contract rights, at the time this
representation is made or deemed made, constitute Minimum Assets.

        4.11 COMPLIANCE WITH APPLICABLE LAW. Each member of the Borrower Group
is in compliance in all respects with all Applicable Law (including
Environmental Law), except to the extent that such failure to be in compliance
would not constitute a Material Adverse Effect.

        4.12 PROPERTY RIGHTS. Each member of the Borrower Group owns, has a
license to use or otherwise has the right to use, free and clear of any pending
or threatened Liens (other than Permitted Liens), all property rights (real,
personal and mixed, tangible and intangible) including all patents, patent
applications, trademarks, permits, service marks, names, trade secrets,
proprietary information and knowledge, technology, computer programs, databases,
copyrights, licenses, franchises and formulas, or rights with respect thereto,
and has obtained assignments of all leases and other rights of whatever nature,
in each case, that are material to the care, custody, control, construction,
development, operation and maintenance of the System or the conduct of the
Business by the Borrower Group as contemplated by the Business Plan, without any
conflict with the rights of others as of the date such property rights are
necessary to operate and maintain the System and the Business.

                                       20
<PAGE>

        4.13 SINGLE-PURPOSE. The Borrower Group (taken as a whole) has not
engaged in any business other than the care, custody, control, development,
construction, operation, maintenance and financing of the System and the conduct
of the Business; provided, that it is recognized that Personnel Co. is
authorized to provide human resource and similar services, and may provide such
services, to unrelated third parties to the extent consistent with the Original
Business Plan.

        4.14 FEES AND ENFORCEMENT.

             (a) Except for the fees and Taxes set forth on Schedule 4.14 that
have been paid in full or will have been paid in full by the date of any
Disbursement requested hereunder or with the proceeds of such Disbursement, no
fees or Taxes are required to be paid for the legality, validity or
enforceability of the Financing Agreements.

             (b) This Agreement and each of such Financing Agreements executed
and delivered as of the date this representation is made or deemed made are each
in proper legal form under (i) the Applicable Law of Mexico and (ii) the
respective governing laws selected in such Transaction Documents, for the
enforcement thereof in such jurisdiction.

        4.15 FOREIGN EXCHANGE APPROVALS. All requisite foreign exchange control
approvals and other similar authorizations, if any, required under Applicable
Law to be issued by any Mexican Governmental Authority to assure (i) the ability
of the Borrower Group to receive, and the ability of any other party to make to
the Borrower Group, any and all payments in the currency or currencies
contemplated by the Financing Agreements, (ii) the ability of the Borrower Group
to maintain Dollar accounts outside Mexico and to transfer amounts from and into
Mexico as necessary to meet its obligations under the Financing Agreements, in
accordance with their respective terms, and (iii) the ability of the Borrower
Group to use Dollars as necessary to perform all of its obligations under the
Financing Agreements, in accordance with their respective terms, including the
making of all payments contemplated in the Financing Agreements, have been duly
and validly obtained and are in full force and effect. Other than those
restrictions or requirements for which appropriate waivers, authorizations
and/or approvals have been received, there are no further restrictions or
requirements under Applicable Law which limit the availability or transfer of
foreign exchange, or the conversion to a foreign exchange, for the purpose of
(a) the performance by the Borrower Group of their obligations under this
Agreement or any other Financing Agreement or (b) repatriating the proceeds of
enforcement of the Obligations or the Collateral to the Collateral Agent.

        4.16 LIENS. Except for Permitted Liens, there are no Liens securing any
Indebtedness or other obligations of any Person covering any present or future
revenues, properties or assets or share capital of any member of the Borrower
Group. No member of the Borrower Group has outstanding any Lien or obligation to
create any Lien on or with respect to any of its properties, revenues or assets,
other than Permitted Liens.

        4.17 TITLE; SECURITY DOCUMENTS.

             (a) Each member of the Borrower Group holds good and legal title to
all property, assets and revenues on which it purports to grant Liens pursuant
to the Security

                                       21
<PAGE>

Documents (including, with respect to the Mortgage, any
and all property, assets and revenues specifically identified therein), in all
cases free and clear of all Liens other than Permitted Liens.

             (b) The provisions of the Security Documents are effective to
create in favor of the Secured Parties a legal, valid and enforceable first
priority Lien on all of the property, assets and revenues described therein
(including, with respect to the Mortgage, any and all property, assets and
revenues specifically identified therein) to the extent a security interest may
be created therein under Applicable Law and all necessary and appropriate
recordings, registrations and filings have been made in all appropriate public
offices, and all other necessary and appropriate action has been taken so that
each such Security Document creates an effective Lien with respect to the
property, assets, contract rights and revenues covered thereby to the extent a
security interest may be created therein under Applicable Law, prior and
superior to all other Liens except for Permitted Liens, and consents to the
creation, effectiveness, priority and enforcement of such Liens have been
obtained from each of the parties to the Transaction Documents and the relevant
Governmental Authorities, other than as described in the proviso to Section
4.04(iv).

        4.18 TRANSACTION DOCUMENTS. The Collateral Agent and each Administrative
Agent have received a true, complete and correct copy of each of the Transaction
Documents in effect as of the date this representation is made or deemed made.
Each such Transaction Document is in full force and effect and has not been
amended, modified or terminated, except as previously disclosed in writing to
the Collateral Agent and each Administrative Agent and in accordance with the
terms hereof.

        4.19 CERTAIN ANCILLARY SERVICES. Except where the failure to obtain the
services referred to below would not constitute a Material Adverse Effect, all
utility services, facilities and other services that can reasonably be expected
to be necessary for the care, custody, control, construction, operation and
maintenance of the System, are, or will be when needed, available to the
Borrower Group to the extent necessary or desirable, and arrangements in respect
thereof have been made.

        4.20 ENVIRONMENTAL MATTERS.

             (a) Except as set forth on Schedule 4.20 (i) no member of the
Borrower Group is now in violation of any Environmental Law which violation
constitutes a Material Adverse Effect, (ii) no member of the Borrower Group, nor
to the best knowledge of any member of the Borrower Group, any third party, has
used, released, discharged, generated, manufactured, produced, stored, or
disposed of in, on, under, or about the System or any real property owned or
leased by an member of the Borrower Group or transported thereto or therefrom,
any Hazardous Material in a manner that could reasonably be expected to subject
any member of the Borrower Group to any material liability which would
constitute a Material Adverse Effect, or subject any Senior Lender or any Agent
to any liability, under any Environmental Law, and (iii) to the best knowledge
of each member of the Borrower Group, there are no Hazardous Materials used,
stored, or present at, on or near the System or any real property owned or
leased by any member of the Borrower Group in violation of Applicable Law which
would constitute a Material Adverse Effect.

                                       22
<PAGE>

             (b) Except as set forth in Schedule 4.07, there is no proceeding,
and to the best knowledge of each member of the Borrower Group, no investigation
or inquiry, by any Governmental Authority or any non-governmental third party
with respect to the presence or release of Hazardous Materials in, on, from or
to the System or any real property owned or leased by any member of the Borrower
Group which would constitute a Material Adverse Effect.

        4.21 INVESTMENT COMPANY ACT. The Company is not an "investment company"
or a company "controlled" by an "investment company," within the meaning of the
Investment Company Act of 1940.

        4.22 TRUE AND COMPLETE DISCLOSURE. (a) All factual information (taken as
a whole), including the Business Plan, furnished by or on behalf of any member
of the Borrower Group in writing to or for the benefit of any particular Senior
Lender (referred to herein as a "Relevant Lender," which term includes the
Collateral Agent or the applicable Administrative Agent under the Credit
Agreement to which such Relevant Lender is a party) was true and accurate in all
material respects (i) in the case of the Original Business Plan, as of the
Closing Date, and (ii) with respect to all other factual information (including
updates of the Business Plan), on the dates as of which such information was
furnished, and was not incomplete by omitting to state any material fact
necessary to make such information (taken as a whole) not misleading in any
material respect at such time in light of the circumstances under which such
information was furnished; provided, however, that, except as otherwise
expressly set forth in this Agreement, the sole representation of each member of
the Borrower Group with respect to projections, estimates or other expressions
of view as to future circumstances shall be that such projections, estimates or
other expressions of view as to future circumstances (i) were prepared in good
faith, (ii) fairly present in all material respects the Borrower Group's
expectations as to the matters covered thereby as of their respective date(s) of
delivery (or, in the case of the Original Business Plan, as of the Closing Date)
(it being understood that assumptions utilized therein were believed by the
Borrower Group in good faith to be reasonable in light of conditions existing at
the time of preparation thereof, but that actual results may vary from the
projected results contained therein), (iii) were based on reasonable assumptions
as to all factual and legal matters material to the estimates therein (including
interest rates and costs) as of their respective date(s) of delivery (or, in the
case of the Original Business Plan, as of the Closing Date), and (iv) were in
all material respects consistent with the provisions of the Transaction
Documents as of their respective date(s) of delivery (or, in the case of the
Original Business Plan, as of the Closing Date). There are no statements,
assumptions or conclusions in the Business Plan, as of the date of delivery
thereof, which are based upon or include information known as such delivery date
to any member of the Borrower Group to be misleading or which fail to take into
account material information regarding the matters reported therein. As of the
Closing Date there are in existence no documents, agreements or other
information which have not been disclosed to the Relevant Lender in writing
which are material in the context of the Transaction Documents or which have the
effect of varying any of the Transaction Documents.

        4.23 NO ADDITIONAL FEES. Other than as set forth in Schedule 4.23, as of
the Closing Date, no member of the Borrower Group has paid nor become obligated
to pay any fee or commission to any broker, finder or intermediary for or on
account of arranging the financing of the transactions contemplated by the
Transaction Documents.

                                       23
<PAGE>

        4.24 USE OF PROCEEDS. No part of the proceeds of any Senior Indebtedness
will be used for the purpose, whether immediate, incidental or ultimate, of
buying or carrying any "margin stock" (as defined in Regulation U) or to extend
credit to others for such purpose. No part of the proceeds of any Senior
Indebtedness will be used, whether directly or indirectly, and whether
immediately, incidentally or ultimately, for any purpose which entails a
violation of, of which is inconsistent with Regulations T, U or X promulgated by
the Board of Governors of the Federal Reserve System (12 C.F.R. Sections 220,
221 and 224, respectively). The Company has used and shall continue to use the
proceeds of all Disbursements in accordance with the term and conditions of all
applicable Financing Agreements.

        4.25 INSURANCE. All insurance policies required to be maintained
pursuant to the terms of this Agreement are in full force and effect, and all
premiums due and payable have been paid.

        4.26 PRIVATE ACTIVITIES; IMMUNITY. The transactions contemplated by the
Transaction Documents constitute private commercial activities (rather than
governmental or public activities). To the extent that any member of the
Borrower Group or any of its properties or assets has or hereafter may acquire
any rights to immunity from setoff, legal proceedings, attachment prior to
judgment, other attachment or execution of judgment on any grounds of
sovereignty or otherwise (whether under the laws of Mexico or any other
jurisdiction), to the extent permitted by Applicable Law such member hereby
irrevocably waives such right to immunity and its properties and assets in
respect of its obligations arising under or relating to this Agreement or any
other Financing Agreement.

        4.27 NO SUBORDINATION. The obligations of each Guarantor under the
Guaranty and the Company under the Credit Agreements or under any other
contracts or instruments executed by Guarantors or the Company in connection
therewith and herewith (i) are not subordinated in right of payment to any other
obligation of the Company or such Guarantors and (ii) will at all times rank
prior to or pari passu in right of payment with all present and future unsecured
Indebtedness of any Guarantor or the Company, as applicable, except in either
case, to the extent provided by law.

        4.28 LICENSES. The Licenses are in full force and effect; and the
Company holds legal, valid, binding and enforceable title to the Licenses free
of any Liens other than Permitted Liens and free of any conditions other than
those set forth in the Licenses. The Licenses are sufficient (together with
other authorizations, consents and permits which have been received, or are
reasonably anticipated to be received on a timely basis, by one or more members
of the Borrower Group) to grant to the Company the legal power and authority to
operate and maintain the System and conduct the Business in accordance with the
Business Plan. Other than as may be set forth in Schedule 4.28, on the Closing
Date there has been no notice given by any Governmental Authority that brings
into question the validity or effectiveness of the Licenses, nor is there any
litigation (or to the best knowledge of each member of the Borrower Group,
threatened litigation) relating in any way to the Licenses which, in either
case, if decided adversely, would have the effect of causing an Event of Default
under Section 7.13.

        4.29 OPERATOR AGREEMENTS. Subject to Section 5.17 and after January 29,
1999, the GTE Operator Agreement and the Operator Agreement are in full force
and effect.

                                       24
<PAGE>

        4.30 EMPLOYEE BENEFIT PLANS; EMPLOYMENT MATTERS.

             (a) EMPLOYEE BENEFITS.

                 (i) Each employee benefit plan of any member of the Borrower
Group, if any, has been maintained, operated and administered in accordance with
its terms and with Applicable Law, and all notices, filing and disclosures
required by such terms or law have been timely made, except when the failure to
maintain, operate, or administer, or to notify, file or disclose, would not have
a Material Adverse Effect. No proceeding with respect to the administration or
the investment of the assets of any employee benefit plan (other than routine
claims for benefits) that would have a Material Adverse Effect or create Liens
(other than Permitted Liens) is pending or threatened.

                 (ii) All obligations of the Borrower Group for payments with
respect to any and all mandatory and additional employee benefit plans
including, but not limited to, all Instituto Mexicano del Seguro Social (Mexican
Social Security Institute), Instituto del Fondo Nacional Para la Vivienda de los
Trabajadores (National Worker's Housing Fund Institute), and accrued payroll
taxes payments for their respective employees have been timely paid and properly
reported in the financial statements required to be delivered under Section 5.01
(a) in accordance with GAAP except where the failure to make such payments would
not have a Material Adverse Effect or create any Lien (other than Permitted
Liens).

                  (iii) The Borrower Group has no liability for retiree
benefits.

             (b) EMPLOYMENT PRACTICES. The Borrower Group has complied in all
material respects with all Applicable Laws, rules and regulations with respect
to employment practices including, but not limited to, applicable health and
safety regulations and there is no charge or complaint alleging any material
violation of such laws, rules or regulations against any member of the" Borrow
Group pending or threatened, or before any federal or local labor board,
tribunal or Comision Nacional del Sistema de Ahorro Para el Retiro (National
Savings and Retirement System Commission).

             (c) LABOR MATTERS. There is no labor strike, request for
representation, slowdown or stoppage actually pending or, to the knowledge of
any member of the Borrower Group, threatened against or affecting it which would
have a Material Adverse Effect.

             (d) FILINGS. Each member of the Borrower Group has filed all forms,
reports, statements, provider agreements benefit plan descriptions, payor
agreements, beneficiary materials and other documents (including, without
limitation, those related to employee benefit plans) required to be filed by it
with any Governmental Authority, including without limitation state and federal
insurance and health regulatory authorities except where the failure to file
would have a Material Adverse Effect or create a Lien.

        4.31 YEAR 2000. Each member of the Borrower Group reasonably believes
that all computer applications that are material to its business and operations
will on a timely basis be able to perform properly date-sensitive functions for
all dates before, on and after January 1,

                                       25
<PAGE>

2000 (that is, be "Year 2000 compliant"), except to the extent that a failure to
do so is would not have Material Adverse Effect.

        4.32 INDEBTEDNESS. As of the date hereof, Schedule 4.32 is a complete
and correct list of all Indebtedness, credit agreements, indentures, purchase
agreements, guaranties, capital leases and other investments, agreements and
arrangements presently in effect providing for or relating to extensions of
credit (including agreements and arrangements for the issuance of letters of
credit or for acceptance financing, but not including nondelinquent trade credit
providing for payment within ninety (90) days of invoice) involving $1,000,000
or more in respect of which each member of the Borrower Group is in any manner
directly or contingently obligated. The maximum principal or face amounts of the
credits in question, which are outstanding and which can be outstanding, are
correctly stated, and all Liens of any nature given or agreed to be given as
security therefor are correctly described or indicated in such Schedule.

                                    ARTICLE 5

                              AFFIRMATIVE COVENANTS

        Each member of the Borrower Group covenants and agrees, jointly and
severally, that until the Commitments have been terminated and all Obligations
in connection with the Senior Indebtedness are paid in full (unless waived in
writing in accordance with the Intercreditor Agreement):

        5.01 INFORMATION COVENANTS. The Company shall furnish to each
Administrative Agent and to each Relevant Party:

             (a) FINANCIAL STATEMENTS.

                 (i) ANNUAL FINANCIAL STATEMENTS OF THE BORROWER GROUP. As soon
as available, taut in any event within 120 days after the close of each Fiscal
Year, a consolidated balance sheet of the Borrower Group as at the end of such
Fiscal Year with the related audited statements of income and retained earnings
and statements of cash flows for such Fiscal Year, in each case setting forth
comparative combined figures for the prior Fiscal Year and certified by the
Independent Accountant, which certification shall state that all such statements
are in agreement with the Borrower Group's books of account and are prepared in
accordance with GAAP on a consistent basis and reconciled to U.S. GAAP.

                 (ii) QUARTERLY FINANCIAL STATEMENTS. As soon as available and
in any event within 45 days after the close of each of the first three quarterly
accounting periods in each Fiscal Year, the combined balance sheet of the
Borrower Group, as at the end of such quarterly period and the related unaudited
combined statements of income and of cash flows for such quarterly period and
for the portion of the Fiscal Year ended at the end of such quarterly period,
and in each case setting forth comparative combined figures for the related
quarterly period in the prior Fiscal Year and the figures for such portion of
the Fiscal Year ended at the end of such quarterly period, all of which shall be
certified by the chief financial officer or controller of Holdings as fairly
presenting the financial condition and results of operations of the Borrower
Group and as having been prepared in accordance with GAAP on a consistent basis

                                       26
<PAGE>

and reconciled to U.S. GAAP, subject to changes resulting from audit and normal
year-end audit adjustments.

             (b) INDEPENDENT ACCOUNTANT'S REPORT. At the time of delivery of the
financial statements provided for in Section 5.01(x), a report of the
Independent Accountant (x) stating that in the course of its regular audit
conducted in accordance with GAAP of the financial statements of the Borrower
Group as described under this Section 5.01, the Independent Accountant obtained
no knowledge of a Default or Event of Default which has occurred, or if in the
opinion of the Independent Accountant such Default or Event of Default has
occurred, a statement as to the nature thereof and (y) certifying that, based on
such financial statements and its review of the terms hereof, the Borrower Group
was in compliance with Sections 5.02(a), 6.03, 6.04, 6.06, 6.09 and 6.10 as of
the end of the relevant Fiscal Year or, as the case may be, detailing any
non-compliance therewith.

             (c) MANAGEMENT LETTERS. Promptly after receipt thereof, by any
member of the Borrower Group, a copy of any management letter or other similar
communication received by any such member from the Independent Accountant in
relation to the financial, accounting and other systems, management or accounts
of any such member.

             (d) BUSINESS PLAN. Not less frequently than annually, commencing
not later than December 15, 1999, an updated Business Plan in the form approved
by the Board of Directors of Holdings, which shall be based on (i) facts and
circumstances existing as of the date of submission, and (ii) with respect to
future events and performance, assumptions believed by the Borrower Group to be
reasonable under the circumstances as of such date of submission. Each updated
Business Plan shall contain, at a minimum, (i) a description of the Borrower
Group's plans in connection with the roll-out of the System, (ii) the number of
subscribers to the System as of the date of such updated Business Plan for each
year thereafter through the final maturity date of any Senior Indebtedness then
outstanding, (iii) a pro-forma income statement (including EBITDA) for the year
in which the up-dated Business Plan is submitted and each year thereafter
through the final maturity date of any Senior Indebtedness then outstanding,
(iv) a debt service coverage table for the then current year and each year
thereafter through the final maturity date of any Senior Indebtedness then
outstanding, (v) at least the same amount of information as was contained in the
Original Business Plan, and (vi) a description of all major assumptions which
were used in connection with the preparation of such up-dated Business Plan.
During the 30-day period following the submission of the updated Business Plan,
the Borrower Group will make available the Chief Financial Officer of Holdings
and any other officer of the Borrower Group reasonably requested by any
Administrative Agent to report on, and answer questions with respect to, such
updated Business Plan at such times as such Agent(s) may reasonably request.

             (e) OFFICERS' CERTIFICATES. At the time of the delivery of the
financial statements provided for in Section 5.01(a), a certificate of an
Authorized Officer of each member of the Borrower Group to the effect that,
based upon such Authorized Officer's review of the terms hereof and the other
Financing Agreements and the financial condition of each member of the Borrower
Group during the relevant accounting period and, to the best of such officer's
knowledge, (i) such member of the Borrower Group is in compliance with all of
its obligations under the terms of the Financing Agreements the non-performance
of which would constitute a

                                       27
<PAGE>

Material Adverse Effect (such certificate to set forth in reasonable detail the
calculations necessary to demonstrate compliance with the financial covenants
contained in Section 6.09 and 6.10 (as applicable)), and (ii) no Default or
Event of Default has occurred and is continuing, or, if any Default or Event of
Default has occurred and is continuing, specifying the nature and extent thereof
and what action the Borrower Group is taking or proposes to take in response
thereto.

             (f) NOTICE OF CERTAIN OCCURRENCES, ETC. (i) Promptly, but in all
cases within five Business Days after any Responsible Officer of any member of
the Borrower Group obtains knowledge thereof, written notice of any event which
constitutes a Default or Event of Default, specifying the nature of such Default
or Event of Default and any steps the Borrower Group is taking and proposes to
take to remedy the same and (ii) promptly, and in any event within five Business
Days, after any senior officer of any member of the Borrower Group obtains
knowledge thereof, notice of:

                      (A) any litigation, arbitration or governmental proceeding
pending or threatened in writing (1) against any member of the Borrower Group
(x) involving a claim or claims in excess of $1,000,000 individually or
$2,000,000 in the aggregate or (y) which, if decided adversely to such member or
members, would constitute a Material Adverse Effect, or (2) with respect to any
Financing Agreement;

                      (B) any proceeding or legislation by any Governmental
Authority to acquire compulsorily ail or any portion of the Collateral or all or
any portion of the business or assets of any member of the Borrower Group
(whether or not constituting an "Event of Default" hereunder);

                      (C) any change in the Authorized Officers of the Company
or other member of the Borrower Group, giving certified specimen signatures of
any new officer so appointed and, if requested by an Administrative Agent,
reasonably satisfactory evidence of the authority of such new officer;

                      (D) any notice relating to a material dispute received or
initiated by any member of the Borrower Group under any of the Licenses;

                      (E) any Lien (other than a Permitted Lien) being granted
or established or becoming enforceable over any portion of the Collateral;

                      (F) any one or more events, conditions or circumstances
(including any event of force majeure or any on going or threatened strike,
slowdown or work stoppage by the employees of any member of the Borrower Group
or of any Vendor) known by a senior officer of any member of the Borrower Group
to exist or to have occurred or in the reasonable judgment of such officer are
expected or imminent that, in any case, constitute a Material Adverse Effect;

                      (G) any notice received by any member of the Borrower
Group purporting to cancel or materially alter in an adverse manner the terms of
any insurance contract (including any notification of any premium increase in
excess of 20% over the prior premium payable for such insurance contract); and

                                       28
<PAGE>

                      (H) any (i) fact, circumstance, condition or occurrence
that results in noncompliance with any Environmental Law and constitutes a
Material Adverse Effect and (ii) pending or, to the best knowledge of any member
of the Borrower Group, threatened (in writing) Environmental Claim against any
such member.

             (g) GOVERNMENTAL REPORTS. Within 30 days after the date on which
any such report is submitted, a copy of any material report required to be filed
by any member of the Borrower Group with any Governmental Authority with respect
to an environmental aspect of the System.

             (h) INFORMATION WITH RESPECT TO AMENDMENT, WAIVER OR CONSENT. In
connection with any proposed amendment, waiver or consent in respect of any of
the provisions hereof or of any other Transaction Document for which the
approval of any Agent or any Senior Lender is required, sufficient information
(including a narrative description of the effect thereof), sufficiently far in
advance of the date a decision is required, to enable such Agent or the Senior
Lenders to make an informed and considered decision with respect thereto
(provided that such information shall be required to be delivered only to those
Agents and Senior Lenders the consent of which is required).

             (i) NOTICE OF DEFAULT, LITIGATION OR ENVIRONMENTAL CLAIM. Promptly,
and in any event within three Business Days after any Responsible Officer of the
Company obtains knowledge thereof, notice of (y) the termination of either of
the Alcatel Procurement Agreement or the QUALCOMM Procurement Agreements and (z)
any change in the ownership of Holdings of which it has knowledge. Each notice
pursuant to this subsection shall specify the nature thereof, the period of
existence thereof and what action, if any, the Borrower Group proposes to take
with respect thereto.

             (j) YEAR 2000 COMPLIANCE. Promptly in the event the Borrower Group
discovers or determines that any computer application (including those of its
material suppliers and vendors) that is material to its or any of the Business
will not be Year 2000 compliant on a timely basis, except to the extent that
such failure would not have a Material Adverse Effect.

             (k) OTHER INFORMATION. Promptly upon transmission thereof, (i)
copies of any filings and registrations with, and reports to, the United States
Securities and Exchange Commission or any comparable Mexican Governmental
Authority by Holdings, (ii) copies of all financial statements, proxy
statements, notices and reports as Holdings shall send generally to public
shareholders and (iii) with reasonable promptness, such other information or
documents (financial or otherwise) as any Secured Party may reasonably request
from time to time (provided that such information shall be required to be
delivered only to the Secured Party or Parties requesting such information).

        5.02 BOOKS, RECORDS AND INSPECTIONS; ACCOUNTING AND AUDIT MATTERS.

             (a) Each member of the Borrower Group will maintain adequate
management information and cost control systems and will keep proper books of
record and account adequate to reflect fairly the financial condition and
results of operations of the

                                       29
<PAGE>

Borrower Group (taken as a whole) and all dealings and transactions related to
its business in which full, true and correct entries shall be made in conformity
with GAAP, consistently applied.

             (b) Each member of the Borrower Group will permit, upon reasonable
notice from any Secured Party or a Relevant Party and during normal business
hours, such Administrative Agent or Relevant Party, as the case may be, and the
officers and designated representatives of such Person to visit and inspect any
of the properties of such member, and to examine and make copies of the books of
record and account and documents of such member and discuss the affairs and
accounts of the Borrower Group with, and be advised as to the same by, their
officers, all at such reasonable times and intervals and to such reasonable
extent as such Administrative Agent or Relevant Party may request.

             (c) The Chief Financial Officer of Holdings shall authorize the
Independent Accountant (whose fees and expenses shall be for the account of the
Borrower Group) to communicate directly with the Relevant Parties, the Alcatel
Administrative Agent and the Qualcomm Administrative Agent, at reasonable times
regarding the accounts and operations of the Borrower Group, subject to the same
precondition as is described in Section 3.01(n).

             (d) In the event that the Borrower Group wishes to replace the
existing Independent Accountant for any reason, the Borrower Group shall (i)
provide the Collateral Agent with written notice of its rationale therefor and
(ii) propose an alternative firm of independent public accountants to serve as
the Independent Accountant, which firm shall be internationally recognized.

        5.03 MAINTENANCE OF PROPERTY AND INSURANCE.

             (a) Each member of the Borrower Group will keep all property
necessary to its business in good working order and condition in accordance with
generally accepted practices, standards and requirements; and shall, from time
to time, in respect of its properties and equipment, make all necessary and
proper repairs, renewals, replacements, extensions, additions, betterments and
improvements thereto, to the extent and in the manner useful or customary for
companies in similar businesses.

             (b) Each member of the Borrower Group will keep its present and
future properties and Business insured as required by and in accordance with the
terms and provision described in Schedule 5.03.

        5.04 CORPORATE FRANCHISES AND SYSTEM PERMITS; ENFORCEMENT OF TRANSACTION
DOCUMENTS. The Borrower Group will:

             (a) take, or cause to be taken, all actions necessary to obtain in
a timely manner all authorizations, consents and permits which are the
responsibility of the Borrower Group, and will promptly make, or cause to be
made, all required filings with governmental or similar authorities in Mexico,
in each case, to preserve, renew and keep in full force and effect (i) the
existence as a sociedad anonima de capital variable in good standing under the
laws of Mexico of each such member, (ii) its qualification to do business in
Mexico and (iii) (except to the extent the absence of which would not constitute
a Material Adverse Effect) its material rights, franchises, licenses, contracts,
powers, privileges and patents

                                       30
<PAGE>

necessary for the construction, development, operation and maintenance of the
System, the conduct of the Business, and the performance of its obligations
under the Transaction Documents;

             (b) obtain and maintain, or cause to be obtained and maintained in
full ford and effect (or where appropriate, renew), (i) all consents,
authorizations and permits which arc the responsibility of the Borrower Group,
licenses and patents, trademarks (and other intellectual property) necessary or
desirable for the care, custody, control, construction, development operation
and maintenance of the System as contemplated by the Business Plan (other than
such consents, authorizations and permits the absence of which would not
constitute a Material Adverse Effect), and (ii) all consents, authorizations and
permits necessary for the conversion to Dollars of all Peso amounts which are
required to be converted by the Financing Agreements and for the remittance to
the United States in Dollars of any amounts paid or payable in Dollars, as
applicable, to the Senior Lenders in connection with any Financing Agreement or
Security Document or the transactions contemplated thereby; and

             (c) preserve and maintain good and marketable title to its
properties and assets subject to no liens other than Permitted Liens.

        5.05 COMPLIANCE WITH APPLICABLE LAW. Each member of the Borrower Group
will comply in all respects with all Applicable Law applicable to it or to the
System except to the extent that the failure to so comply would not constitute a
Material Adverse Effect.

        5.06 USE OF PROCEEDS. The Company shall use the proceeds of all
Disbursements only for the purposes set forth in the applicable Credit
Agreement.

        5.07 TAXES; PROPER LEGAL FORM. Each member of the Borrower Group shall
pay or arrange for payment on or prior to the date when due of all present and
future (i) Taxes imposed on it and (ii) claims, levies or liabilities (including
claims for labor, services, materials and supplies) for sums which have become
due and payable and which have become or, if unpaid, would become a Lien (other
than a Permitted Lien) upon, or otherwise would constitute a Material Adverse
Effect on, the property of the Borrower Group (or any part thereof); provided,
however, that no member of the Borrower Group shall be required to pay any
amount otherwise payable pursuant to either clause (i) or (ii), if such amount
is the subject of a Good Faith Contest. Each member of the Borrower Group will
promptly pay or cause to be paid any valid, final judgment enforcing any such
Taxes or other claims, levies or liabilities of any member of the Borrower
Group, and shall cause the same to be satisfied of record. Each member of the
Borrower Group shall take all such further action within its control required to
ensure that each of the Transaction Documents is in proper legal form under the
laws of Mexico or under the respective governing laws selected in such
Transaction Documents, for the enforcement thereof in such jurisdictions without
any further action on the part of any Agent or any other Person.

        5.08 CREDIT AGREEMENTS. Each member of the Borrower Group will
diligently perform each of its obligations under each of the Credit Agreements.

                                       31
<PAGE>

        5.09 ADDITIONAL DOCUMENTS; FILINGS AND RECORDINGS.

             (a) Each member of the Borrower Group shall, at its own expense,
 .take all actions that have been or shall be reasonably requested by the
Collateral Agent, or that such member knows are, necessary to establish,
maintain, protect, perfect and continue the perfection of the first priority
security interests of the Collateral Agent for the benefit of the Secured
Parties created by the Security Documents and shall furnish timely notice of the
necessity of any such action, together with such instruments, in execution form,
and such other information as may be required to enable the Collateral Agent to
effect any such action. Without limiting the generality of the foregoing, each
member of the Borrower Group shall, at its own expense, (i) execute or cause to
be executed and shall file or cause to be filed or register or cause to be
registered such financing statements, continuation statements, fixture filings
and mortgages or deeds of trust in all places necessary or advisable (in the
opinion of counsel for the Collateral Agent), to establish, maintain and perfect
such security interests, (ii) discharge all other Liens (other than Permitted
Liens) or other legal and valid claims adversely affecting the rights of the
Collateral Agent and/or the other Secured Parties in the Collateral, (iii)
deliver or publish all notices to third parties that may be required to
establish or maintain the validity, perfection or priority of any Lien created
pursuant to the Security Documents, and (iv) file or cause to be filed or
register or cause to be registered the Mortgage at the Public Registry of
Commerce and/or the Public Registry of Property in each locality where the
Borrower owns any real property in Mexico, including any real property acquired
by the Borrower after the Closing Date.

             (b) Each member of the Borrower Group will do everything necessary
in the judgment of the Collateral Agent, (including filing, registering and
recording all necessary documents and paying all fees, taxes, levies, imposts
and expenses in connection therewith) to (A) create security arrangements,
including, if applicable, the establishment of a pledge or the perfection of any
Lien or, as applicable, the enforceability of a Lien as against any member of
the Borrower Group and any subsequent Lien or (including a judgment lien or),
holder of a fixed or floating charge, or transferee for or not for value, in
bulk, by operation of law, or otherwise, in each case granted, with respect to
future assets in accordance with the requirements of Mexican law and New York
law, (B) maintain the security and pledges created by the Security Documents in
full force and effect at all times (including, as applicable, the priority
thereof) and (C) preserve and protect the Collateral and protect and enforce its
rights and title, and the rights and title of the Collateral Agent, for the
benefit of the Secured Parties, to the security created by the Security
Documents. Furthermore, any member of the Borrower Group shall cause to be
delivered to the Intercreditor Agent such opinions of counsel and other related
documents as may be reasonably requested by the Collateral Agent, to assure
compliance with this Section 5.09.

        5.10 CONDEMNATION EVENT; CASUALTY EVENT. If any Casualty Event or
Condemnation Event shall occur with respect to the System or any material part
thereof, the Borrower Group shall (i) promptly upon discovery or receipt of
notice of any occurrence thereof provide written notice thereof to the Agents
and the Relevant Parties, (ii) diligently pursue all its rights to compensation
against all relevant insurers, reinsurers and/or Governmental Authorities, as
applicable, in respect of such event, (iii) not, without the written consent of
the Collateral Agent compromise or settle any claim with respect thereto if the
amount of any such claim (either individually or in the aggregate) exceeds
$25,000,000, and (iv) if the amount of Loss Proceeds exceeds $50,000,000
immediately pay or apply all such Loss Proceeds stemming from

                                       32
<PAGE>

such event to the Collateral Agent for deposit into a separate escrow account to
be maintained by the Collateral Agent for the benefit of the Secured Parties
(the "Loss Proceeds Escrow Account") and to the extent that any Loss Proceeds
are less than the minimum required for deposit into the Loss Proceeds Escrow
Account, the Borrower Group shall not be obligated to make such deposit, but
shall be required to apply such Loss Proceeds, as soon as may be practicable, to
either (a) the prepayment of all Senior Indebtedness then outstanding on a Pro
Rata Payment basis, or (b) the repairing, rebuilding, reconstructing or
re-equipment of the System. Amounts on deposit in the Loss Proceeds Escrow
Account shall be disbursed to or for the credit of the Company for the purpose
of repairing, reconstruction or re-equipment of the System which has been
damaged or destroyed or condemned, upon satisfaction of conditions to such
disbursement which shall be set forth in an agreement (the "Loss Escrow
Agreement") which shall be executed and delivered by the Collateral Agent and
each member of the Borrower Group as soon as may be practicable following the
deposit to the Loss Proceeds Escrow Account, which Loss Escrow Agreement shall
be in form and substance reasonably satisfactory to the Required Voting Parties
as set forth in the Intercreditor Agreement. If the conditions set forth in the
Loss Escrow Agreement cannot be satisfied or if the Company otherwise elects,
then all of the Loss Proceeds shall be disbursed from the Loss Proceeds Escrow
Account and applied to the prepayment of Senior Indebtedness then outstanding on
a Pro Rata Payment basis. Each member of the Borrower Group consents to the
participation of the Collateral Agent in any proceedings regarding a Casualty
Event or Condemnation Event, and each such member shall from time to time
deliver to the Collateral Agent all documents and instruments requested by it in
connection with such participation. If and to the extent that any Senior
Indebtedness then outstanding does not permit the prepayment thereof at such
time or under such circumstances as are described in this Section 5.10, or any
Senior Lender notifies the Company and each Administrative Agent that it does
not desire any such prepayment from such amounts, then any prepayment referred
to in this Section 5.10 shall be applied on a Pro Rata Payment basis as if such
Senior Indebtedness was not then outstanding. Any prepayment of Senior
Indebtedness made in accordance with this Section 5.10 shall be made
simultaneously with the prepayment of other Senior Indebtedness (other than as
set forth in the preceding sentence), provided that if such prepayment of any
such Senior Indebtedness would require a prepayment or break-funding penalty,
such prepayment amounts may, at the option of the Company, be deposited with the
applicable Administrative Agent, invested in Permitted Investments, and applied
to the prepayment of such Senior Indebtedness on the first date as to which no
prepayment or break-funding penalty would be imposed.

        5.11 APPLICATION OF EQUITY CONTRIBUTIONS. Holdings shall, immediately
upon receipt of cash or other funds or assets (i) representing the subscription
price paid in connection with the Equity Commitments or any other cash
contributions made by the shareholders of Holdings in consideration for Capital
Stock issued by Holdings, including any proceeds received by Holdings pursuant
to a Qualified Public Offering, or (ii) received as the proceeds of any
Indebtedness issued by Holdings (other than the proceeds of Indebtedness which,
is required by the Person furnishing or underwriting such Indebtedness, to be
held in a reserve or similar account by Holdings for payment of principal or
interest on such Indebtedness), or (iii) representing any other cash, liquid
investments or other assets (other than stock held by Holdings in its
subsidiaries), contribute no less than 99% of such cash or other funds or assets
to the Company (and the remainder, if any, to Pegaso PCS and/or Personnel Co.)
as an equity contribution and without any right, directly or indirectly, to
receive repayment. Other than with respect to a Qualified Public Offering,
Holdings shall ensure that each new shareholder of

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<PAGE>

Holdings, as a precondition to its contribution of equity, execute and deliver
the Sponsor Negative Pledge Agreement and in take all actions required by such
agreement with respect to the shares of such shareholder.

        5.12 TRANSLATIONS. If any Transaction Document, notice, certificate,
instrument, communication or other document required to be delivered to any
Person pursuant to this Agreement is not originally executed, delivered or given
in English (regardless of whether such requirement arises before or after the
Initial Disbursement Date), the Borrower Group shall, upon written request of
any Agent or Relevant Party entitled to receive the same, concurrently with the
delivery of such Transaction Document, notice, certificate, instrument or other
document, additionally and at the Company's expense, provide to such Person a
certified English translation thereof. Subject to Section 8.13, if any
Transaction Document, notice, certificate, instrument, communication or other
document required to be delivered to any Person pursuant to this Agreement is
not originally delivered in Spanish, and a Spanish translation thereof shall be
necessary or appropriate, in the reasonable judgment of any Secured Party, under
Mexican law of in connection with the administration or enforcement of any of
the Financing Agreements, then any Secured Party may, or upon the request of any
Secured Party the Company shall, obtain a certified Spanish translation thereof
at the Company's expense for the benefit of the Secured Parties.

        5.13 NEW SUBSIDIARIES. In the event that Holdings or any other member of
the Borrower Group (or any New Subsidiary, as defined below) forms, purchases or
acquires (whether for consideration or otherwise) any Subsidiary other than
those Persons which are, as of the Closing Date, members of the Borrower Group
(a "New Subsidiary"), then the member of the Borrower Group which has so formed,
acquired or purchased such New Subsidiary shall (at its own expense), within 30
days of the date of such formation, acquisition or purchase, deliver to the
Agents and the Relevant Parties the following documents (which shall be in form
and substance reasonably acceptable to the Agents): (A) a guaranty by the New
Subsidiary of all of the Obligations, substantially in the form of the Pegaso
Guaranty Agreement delivered by the Guarantors on the Closing Date, (B) a trust
agreement (substantially in the form of the Guaranty Trust Agreement) entered
into by the member of the Borrower Group which is the parent company of such New
Subsidiary, as settlor, which has the effect of transferring title to 100% of
the Capital Stock of such New Subsidiary to the trustee under such trust
agreement, (C) an instrument in writing, executed and delivered by the New
Subsidiary, pursuant to which such New Subsidiary becomes a member of the
Borrower Group and subject to this Agreement and (to the extent appropriate) the
other Financing Agreements, (D) such security documents as shall (in the opinion
of the Administrative Agents) be necessary to grant to the Collateral Agent a
first priority and perfected Lien on all of the assets, contract rights,
intangibles and revenues of the New Subsidiary, and (E) opinions of counsel,
reasonably acceptable to the Administrative Agents, as to the validity and
enforceability of such foregoing agreements.

        5.14 OTHER PROPERTIES SUBJECT TO LIENS; AFTER-ACQUIRED PROPERTY.

             (a) Within 30 days of the purchase or acquisition by the Company of
any property (including, without limitation, Capital Stock of any other Person),
asset, contract or other right, or intangible which is not then subject to a
Lien granted by the Security Documents (collectively, "After-Acquired
Property"), the Company shall so notify the Administrative

                                       34
<PAGE>

Agents, the Relevant Parties and the Collateral Agent in Writing and shall
deliver to the Collateral Agent (at the expense of such member) such agreements,
instruments and other documents (including amendments to the Mortgage or other
Security Documents) as shall be deemed necessary or appropriate, in the
reasonable opinion of the Collateral Agent, to grant a first priority and
perfected Lien on such After-Acquired Property to the Collateral Agent, subject
to no Liens other than Permitted Liens.

             (b) Without limiting the generality of the foregoing and except as
expressly provided in the Post-Closing Agreement, the Company shall, within 30
days of entering into any Material Agreement, (i) execute an Assignment
Agreement in favor of the Collateral Agent, for the benefit of the Senior
Lenders, collaterally assigning all of the Company's rights under such material
agreement and (ii) obtain the consent of any contractual counterparties
necessary of desirable, in form and substance, reasonably satisfactory to the
Administrative Agents, to permit such collateral assignment.

             (c) As provided in Section 2.04, any and all property, assets,
contract or other rights or intangibles which are granted to any Senior Lender
in connection with the issuance of Additional Senior Indebtedness shall be
granted to the Collateral Agent and held for the benefit of all of the Senior
Lenders as security for all of the Obligations as provided in the Intercreditor
Agreement.

        5.15 EQUITY COMMITMENTS. Holdings shall take all actions necessary or
required to assure that all of the Equity Commitments remain in full force and
effect. Subject to any restrictions contained in the Joint Venture Agreement
relating to the timing of the obligation of the Original Mexican Shareholders to
make Equity Contributions, Holdings shall draw on such Equity Commitments, to
the extent permitted under such Equity Commitments, at the earlier to occur of
the following: (i) the last date on which any particular contribution is to be
made under such Equity Commitment, or (ii) at least five Business Days prior to
any date on which any member of the Borrower Group has an obligation to pay any
Obligation (or has any other obligation for the payment of money, the
non-payment of which would constitute a Material Adverse Effect) and has
insufficient funds on hand to make such payment. Any such drawing on the Equity
Commitments shall (subject to the limitations contained in such Equity
Commitments) be in an amount sufficient to satisfy the requirement set forth in
the preceding sentence. Holdings shall not permit the Joint Venture Agreement to
be amended or supplemented in any manner which would relieve the Original
Mexican Shareholders from fulfilling the Equity Commitments contained therein.
The obligations of Holdings under this Section 5.15 to draw upon the Equity
Commitments shall be reduced to the extent of (i) any cash equity investment
received by Holdings after the date hereof or (ii) the principal amount of any
Subordinated Loans extended to Holdings after the date hereof; provided, that
all obligations of Holdings pursuant to this Section 5.15 shall terminate upon
the investment of additional equity and/or incurrence of Subordinated Loans in
the aggregate amount of $100,000,000 after the date hereof.

        5.16 YEAR 2000 COMPLIANCE. Each member of the Borrower Group shall take
such actions as are necessary or prudent to assure that any computer application
(including those operated by the Vendors) that is material to the Business of
the Borrower Group will be Year

                                       35
<PAGE>

2000 compliant on a timely basis, except to the extent that such failure will
not result in a Material Adverse Effect.

        5.17 OPERATOR AGREEMENTS. The Borrower Group agrees to maintain in full
force and effect the Operator Agreement and to cause Leap Wireless Mexico to
maintain in full force and effect the GTE Operator Agreement, in each case,
through the date (the "Applicable Date") which is the earlier of (i) the
expiration date stated therein, and (ii) December 31, 2003; provided, however,
that (i) Leap Wireless Mexico may terminate the GTE Operator Agreement prior to
the Applicable Date so long as (a) Leap Wireless Mexico enters into a new
operator agreement substantially similar to the GTE Operator Agreement,
replacing GTE with another company of international standing and experience in
respect of operating systems (either as principal or agent) in the
telecommunications industry, and (b) the replacement operator executes a consent
in substantially the form of Appendix E-5 within 30 days of the execution of the
replacement operator agreement, and (ii) the Company may terminate the Operator
Agreement or Leap Wireless Mexico may terminate the GTE Operator Agreement so
long as (a) the Company enters into a new operator agreement substantially
similar to the GTE Operator Agreement, operating systems (either as principal or
agent) in the telecommunications industry and (b) the replacement operator
executes a Consent in substantially the form of Appendix E-5 within 30 days of
the execution of the replacement operator agreement.

        5.18 PAYMENT OF CERTAIN FEES. The Borrower Group shall pay all of the
reasonable and customary fees and expenses (including up-front and on-going fees
and expenses) of (i) the Collateral Agent, (ii) the Intercreditor Agent, (iii)
the trustee under the Guaranty Trust Agreement, in each case upon receipt of
invoices from such parties, and (iv) the notary in connection with any
amendments to the Mortgage.

        5.19 CONSENTS, APPROVALS. The Borrower Group shall, from time to time,
obtain all material governmental and third party consents, approvals, Permits
and licenses required to be obtained by such time in connection with the
transactions contemplated by the Alcatel Procurement Agreement, the QUALCOMM
Procurement Agreements and the Financing Agreements and such consents, approvals
and licenses shall be kept in effect so long as required, including, without
limitation, (i) any required consent of any Governmental Authority required to
be obtained to permit the assignment for security purposes of the Licenses and
all additional licenses granted to any member of the Borrower Group and (ii) all
required consents from contractual counterparties of the Borrower Group required
to be obtained to permit the due and proper assignment to the Collateral Agent
of the Collateral.

        5.20 MAINTENANCE OF LICENSES.

                  (i) The Company shall take any and all action necessary to
maintain the Licenses in compliance with Applicable Law, except to the extent
that the failure to do so would not constitute an Event of Default under Section
7.13.

                  (ii) The Company shall not sell, assign, transfer or partition
the Licenses other than as permitted by Section 6.02 (e).

                                       36
<PAGE>

                  (iii) The Company shall not take any action which would
violate any federal, state, national, provincial or local statute, rule
regulation or order relating to the Licenses if such violation would constitute
a Material Adverse Effect.

                  (iv) The Company shall not materially modify or amend the
Licenses if such modification or amendment would result in the Licenses not
covering at least Region 9, and either Region 4 or Region 6 (as such Regions are
defined in Exhibit A to the Joint Venture Agreement) or the number of Covered
Pops covered by the Licenses, as so modified or amended, would not exceed
40,000,000 Pops.

                  (v) The Company shall enter into all interconnection
agreements required under or by the Licenses, if any.

                  (vi) The Company shall not take any action which would violate
any License or any agreement relating to the Licenses if such action would
result in an Event of Default under Section 7.13.

                  (vii) The Company shall not (other than as contemplated by the
Security Documents) pledge as collateral the Licenses, nor subject the Licenses
to any claim, Lien, security interest or other encumbrance.

        Provided; however, that nothing in this Section 5.20 shall limit the
ability of the Company to sell or dispose of assets, including a portion of the
Licenses to the extent expressly permitted in Section 6.02(e).

        5.21 SITE ACQUISITION.

             (a) In connection with site acquisition for the placement or
installation of Intelligent Base Station Controllers ("BSCs"), Base Station
Transceivers ("BTSs"), Mobile Switching Centers ("MSCs") or other infrastructure
equipment, the Company shall enter into a Site Lease with minor modifications as
shall be reasonably necessary to negotiate with particular landlords; and

             (b) concurrently with entering into any lease of real property in
connection with the placement or installation of BSCs, BTSs, MSCs or other
infrastructure equipment, whether or not in the form of a Site Lease, the
Company shall deliver to the Collateral Agent (i) a copy of such lease and (ii)
if the lessor of such real property is party to a lending arrangement with
respect to such real property, a nondisturbance agreement, duly executed by the
lessor's lender in form suitable for recordation, or, in the case of each item
(a) or (b) of this Section 5.21, other documentation reasonably satisfactory to
the Collateral Agent.

        5.22 MINIMUM ASSETS. The Company shall at all times own, legally and
beneficially, title to the Minimum Assets.

                                       37
<PAGE>

                                    ARTICLE 6

                               NEGATIVE COVENANTS

        Each member of the Borrower Group covenants and agrees, jointly and
severally, that, until the Commitments have been terminated and all Obligations
in connection with the Senior Indebtedness are paid in full (unless waived in
writing in accordance with the Intercreditor Agreement):

        6.01 LIENS. Each member of the Borrower Group will not, and will not
agree to, create, incur, assume or suffer to exist any Lien upon or with respect
to any of its property, revenues or assets (real, personal or mixed, tangible or
intangible) whether now owned or hereafter acquired or sell any such property or
assets subject to an understanding or agreement, contingent or otherwise, to
repurchase such property or assets (including sales of accounts receivable or
notes with recourse to such Person) or assign any right to receive income;
provided that the provisions of this Section 6.01 shall not prevent the
creation, incurrence, assumption or existence of the following Liens, rights or
trusts (each, a "Permitted Lien"):

                  (i) Liens created by any of the Security Documents or the
other Financing Agreements, or otherwise in favor of the Collateral Agent for
the benefit of the Senior Lenders in connection with the transactions
contemplated by this Agreement;

                  (ii) Liens in respect of property, revenues or assets of a
member of the Borrower Group imposed by Applicable Law, which were incurred in
the ordinary course of business, do not secure Indebtedness and do not arise as
a consequence of any default by a member of the Borrower Group in connection
with any Transaction Document or any obligation owed to any Person, and (x)
which do not in the aggregate materially detract from the value of such property
or assets or materially impair the use thereof in the operation of the Business
of the Borrower Group or (y) which are the subject of a Good Faith Contest by
appropriate proceedings, which proceedings have the effect of preventing the
forfeiture or sale of the property or asset subject to such Lien;

                  (iii) Liens for taxes, assessments and other governmental
charges of requirements which are not then due or which are subject to a Good
Faith Contest;

                  (iv) Liens in respect of judgments or awards against a member
of the Borrower Group which are subject to a Good Faith Contest but only to the
extent, for an amount and for a period not resulting in an Event of Default
under Section 7.12;

                  (v) Liens created pursuant to Capital Leases permitted by
Section 6.04(c);

                  (vi) Liens incurred or deposits made in the ordinary course of
business in connection with workers' compensation, unemployment insurance and
other types of social security, or to secure the performance of tenders,
statutory obligations, surety and appeal bonds, bids, leases, government
contracts, performance and return-of-money bonds and other similar obligations
incurred in the ordinary course of business (exclusive of obligations in respect
of the payment for borrowed money);

                                       38
<PAGE>

                  (vii) leases, subleases or licenses granted to others not
interfering in any material respect with the Business;

                  (viii) easements, rights-of-way, restrictions, minor defects
or irregularities in title and other similar charges or encumbrances not
interfering in any material respect with the ordinary conduct of the Business;

                  (ix) any interest or title of a lessor under any lease
permitted by this Agreement and Liens arising from financing statements
regarding leases permitted by this Agreement;

                  (x) purchase money Liens securing payables arising from the
purchase by any member of the Borrower Group of any equipment or goods in the
normal course of business, provided that such payables do not constitute
Indebtedness;

                  (xi) Liens arising pursuant to purchase money mortgages or
security interest securing Indebtedness not constituting Senior Indebtedness or
High Yield Debt representing the purchase price of assets acquired by any member
of the Borrower Group after the Closing Date; provided that any such Liens
attach only to the asset so acquired and that all Indebtedness secured by Liens
created pursuant to this clause (xi) is permitted by this Article 6;

                  (xii) Liens on property (other than Capital Stock) of any
Person that becomes a member of the Borrower Group after the date hereof,
provided that such Liens are in existence at the time such Person becomes a
member of the Borrower Group, were not created in anticipation thereof and do
not attach to any property of any other member of the Borrower Group;

                  (xiii) Liens on wireless telecommunication handsets granted in
favor of a holder of Indebtedness, provided that (a) such Indebtedness was
incurred for the purpose of, and the proceeds thereof were expended for, the
payment for such handsets, and (b) such Indebtedness does not constitute
Additional Senior Indebtedness;

                  (xiv) with respect to the incurrence of High Yield Debt, the
Lien described in the parenthetical in Section 6.04(h)(C); and

                  (xv) Liens (other than Liens elsewhere described in this
Section 6.01), provided that (A) the aggregate amount of the Indebtedness
secured by such Liens does not at any time exceed the greater of (a)
$10,000,000, or (b) one percent (1 %) of the aggregate of the Consolidated Debt
and the Consolidated Paid-In Equity at the time of the incurrence of such
Indebtedness, and (B) such Liens do not encumber any of the following assets or
properties: (a) the Licenses, (b) any assets or equipment furnished under the
Vendor Agreements, (c) any intellectual property rights, (d) any accounts
receivable or proceeds thereof related to the Business, or (e) any real estate;
provided further, that this clause (xv) shall not apply to permit any Liens by
New Subsidiaries.

        6.02 CONSOLIDATION; MERGER; SALE OF ASSETS. No member of the Borrower
Group will wind up, liquidate or dissolve its affairs, or enter into any
transaction of merger or consolidation, sell or otherwise dispose of all or any
part of its property or assets (other than

                                       39
<PAGE>

sales and other dispositions (including asset swaps and similar transactions)
when no Event of Default exists to the extent such sale or disposition is in the
ordinary course of business) or purchase, lease or otherwise acquire all or any
part of the property or assets of any Person (other than purchases or
acquisitions of inventory, leases, materials and equipment in the ordinary
course of business) or agree to do any of the foregoing at any future time,
except that the following shall be permitted:

             (a) any Subsidiary of a member of the Borrower Group (other than
the Company) may be merged or consolidated with or into, or be liquidated into,
another member of the Borrower Group (so long as a member of the Borrower Group
is the surviving corporation), or all or any part of its business, properties
and assets may be conveyed, leased, sold or transferred to a member of the
Borrower Group, in each case to the extent that (i) no detriment results in the
operation of the Business, (ii) there is no detriment to the security interests
and Liens created pursuant to the Security Documents, and (iii) the Company
continues to own, both legally and beneficially, the Minimum Assets;

             (b) Capital Expenditures; provided that such Capital Expenditures
do not exceed $750,000,000 from January 1, 1998 through December 31, 2000, and
do not exceed $200,000,000 for each calendar year thereafter; provided that if
any portion of such permitted Capital Expenditure is not made within the
designated period, such unused amount shall be available (and permitted) to be
made as Capital Expenditures in ensuing periods;

             (c) each member of the Borrower Group may lease (as lessee) real or
personal property in the ordinary course of business (so long as such lease does
not create a Capitalized Lease Obligation not otherwise permitted by Section
6.04(c));

             (d) licenses or sublicenses by members of the Borrower Group of
intellectual property in the ordinary course of business of such members,
provided, that such licenses or sublicenses shall not interfere with the
Business;

             (e) sales of Licenses (or portions thereof), provided that (i)
following such sale or sales, the Company continues to own the Licenses covering
at least Region 9 and either Region 4 or Region 6 (as defined in Exhibit A to
the Joint Venture Agreement), (ii) following such sale or sales, the total
Covered Pops in the Regions covered by the Licenses (or portions thereof) owned
by the Company following such sale or sales are not less than 40,000,000, and
(iii) to the extent the amount of the net proceeds of such sale or sales exceeds
the aggregate amount of (A) Capital Expenditures of the Company (whether or not
financed) plus (B) all amounts paid in connection with acquisitions permitted
under clause (g) below, in each case, during the period from the date of receipt
of such net proceeds by the Company through and including the date that is 180
days thereafter, such excess shall be applied to the prepayment of outstanding
Senior Indebtedness on a Pro Rata Payment basis as soon as may be practicable
following the end of such 180-day period;

             (f) sales or dispositions of assets (other than the Licenses or
portions thereof) provided, that to the extent the amount of the net proceeds of
such sale or sales exceeds the aggregate amount of (A) Capital Expenditures of
the Company (whether or not financed) plus (B) all amounts paid in connection
with acquisitions permitted under clause (g) below, in

                                       40
<PAGE>

each case, during the period from the date of receipt of such net proceeds by
the Company through and including the date that is 180 days thereafter, such
excess shall be applied to the prepayment of outstanding Senior Indebtedness on
a Pro Rata Payment basis as soon as may be practicable following the end of such
180-day period; and

             (g) other than with respect to New Subsidiaries, the acquisitions
of additional telecommunications businesses and assets in Mexico, provided that
the aggregate acquisition price of all such businesses and assets does not
exceed $50,000,000.

        In connection with the sale or disposition of any License (or portion
thereof) or any other asset or property of a member of the Borrower Group which
is permitted under this Section 6.02 and which is then subject to a Lien created
by the Security Documents, the Collateral Agent shall execute such documents of
release as shall be reasonably requested by the Borrower Group in order to
release such Licenses (or portions thereof) or such other asset or property from
the Lien created by the Security Documents. If and to the extent that any Senior
Indebtedness then outstanding does not permit the prepayment thereof at such
time or under such circumstances as are described in clause (e) or clause (f) of
this Section 6.02, or any Senior Lender notifies the Company and each
Administrative Agent that it does not desire any such prepayment from such
sources, then any prepayment referred to in such clauses shall be applied on a
Pro Rata Payment basis as if such Senior Indebtedness was not then outstanding.
Any prepayment of Senior Indebtedness made in accordance with this Section 6.02
shall be made simultaneously with the prepayment of other Senior Indebtedness
(other than as set forth in the preceding sentence), provided that if such
prepayment of any such Senior Indebtedness would require a prepayment or
break-funding penalty, such prepayment amounts may, at the option of the
Company, be deposited with the applicable Administrative Agent, invested in
Permitted Investments, and applied to the prepayment of such Senior Indebtedness
on the first date as to which no prepayment or break-funding penalty would be
imposed.

        6.03 RESTRICTED PAYMENTS. No member of the Borrower Group will declare
or pay any dividends (other than dividends payable solely in Capital Stock of
such Person) or return any capital to, its stockholders or authorize or make any
other distribution, payment or delivery of property or cash to its stockholders
as such, or redeem, retire, purchase, or otherwise acquire, directly or
indirectly, for consideration, any shares of any class of its Capital Stock now
or hereafter outstanding (or any warrants for or options or stock appreciation
rights in respect of any of such shares), or set aside any funds for any of the
foregoing purposes, or permit any of its Subsidiaries to purchase or otherwise
acquire for consideration any shares of any class of the Capital Stock of any
other member of the Borrower Group or any other Subsidiary, as the case may be,
now or hereafter outstanding (or any options or warrants or stock appreciation
rights issued by such Person with respect to its capital stock) (all of the
foregoing "Dividends"), except that (A) any Subsidiary of the Company, Pegaso
PCS or Personnel Co. may pay Dividends to the Company, Pegaso PCS or Personnel
Co., as applicable, (B) each of the Company, Pegaso PCS or Personnel Co. may pay
cash Dividends to Holdings to the extent, but only to the extent, that Holdings
needs all of such Dividends within five Business Days following the payment of
such Dividend to pay (i) normal, reasonable and customary administrative costs
incurred in the ordinary course of its business, (ii) Taxes paid in cash related
to the Business on behalf of the Borrower Group, (iii) to the extent that no
Default or Event of Default exists at the time such Dividend is paid and the
Company reasonably believes that it has, or will have on each of the

                                       41
<PAGE>

next following Payment Dates applicable to each tranche of Senior Indebtedness,
cash or Permitted Investments equal to the debt service coming due on such
Payment Dates, interest on, and (subject to Section 6.04(h)(B)) regularly
scheduled principal coming due on, High Yield Debt (issued by Holdings) within
such five Business Day-period (and any Dividends not so utilized within such
five Business Day-period shall be returned to the appropriate Subsidiary of
Holdings) and (iv) to the extent no Default or Event of Default exists at the
time of such payment, dividends by Holdings which are permitted to be paid
pursuant to clause (C) below, and (C) at any time during any fiscal year,
Holdings may pay Dividends to its shareholders provided that, (1) the Cash Flow
Test shall be satisfied as of the date of such Dividend payment, (2) the EBITDA
Test shall be less than or equal to 5.0 as of the date of such Dividend payment;
provided, that for purposes of this Section 6.03 the components of the EBITDA
Test shall be calculated as follows: (x) Consolidated Debt, cash and Permitted
Investments shall be measured as of the date of such Dividend payment and (y)
EBITDA shall be measured based on the two preceding fiscal quarters most
recently ended, and (3) simultaneously with any such Dividend payment, there
shall be paid to the holders of Senior Indebtedness, as a prepayment of the
principal amount of such Senior Indebtedness then outstanding and on a Pro Rata
Payment basis, an amount equal to such Dividend multiplied by the ratio
(expressed as a percentage of not less than 100%) which (i) the total principal
amount of Senior Indebtedness outstanding on the date of such prepayment bears
to (ii) the total Consolidated Paid In Equity as of such date, both calculated
in a manner consistent with the provisions of Section 6.10. If and to the extent
that any Senior Indebtedness then outstanding does not permit the prepayment
thereof at such time or under such circumstances as are described in this
Section 6.03, or any Senior Lender notifies the Company and each Administrative
Agent that it does not desire any such prepayment from such sources, then any
prepayment referred to in this Section 6.03 shall be applied on a Pro Rata
Payment basis as if such Senior Indebtedness was not then outstanding. Any
prepayment of Senior Indebtedness made in accordance with this Section 6.03
shall be made simultaneously with the prepayment of other Senior Indebtedness
(other than as set forth in the preceding sentence), provided that if such
prepayment of any such Senior Indebtedness would require a prepayment or
break-funding penalty, such prepayment amounts may, at the option of the
Company, be deposited with the applicable Administrative Agent, invested in
Permitted Investments, and applied to the prepayment of such Senior Indebtedness
on the first date as to which no prepayment or break-funding penalty would be
imposed.

        6.04 INDEBTEDNESS. No member of the Borrower Group will contract,
create, incur, assume or suffer to exist any Indebtedness, except the following
("Permitted Indebtedness"):

             (a) subject to Section 6.09 or Section 6.10 (whichever is then
applicable), Indebtedness incurred pursuant to the Alcatel Credit Agreement and
the Qualcomm Credit Agreement and Indebtedness incurred as a result of the
Alcatel Commitment Letter;

             (b) Indebtedness owing by any member of the Borrower Group to
another member of the Borrower Group so long as (i) not otherwise restricted by
this Agreement, and (ii) any payment of such debt (whether principal, interest
or otherwise) is specifically subordinated to the Senior Indebtedness and is not
secured in any form; provided, however, that no loan or advance may be made by
the Company to any other member of the Borrower Group if (A) an Event of Default
has occurred and is then continuing or (B) the total amount so loaned or

                                       42
<PAGE>

advanced by the Company and then outstanding exceeds an amount equal to 1% of
the Consolidated Paid-In Equity;

             (c) Capitalized Lease Obligations of a member of the Borrower Group
not constituting Senior Indebtedness and Indebtedness incurred pursuant to
purchase money mortgages or security interests permitted by Section 6.01(xi),
provided that the aggregate of such Capitalized Lease Obligations under all
Capitalized Leases entered into after the Closing Date plus the principal amount
of all Indebtedness secured by such purchase money mortgages or security
interests shall not exceed at any time outstanding the greater of (i)
$15,000,000 or (ii) two percent (2%) of the sum of Consolidated Debt and
Consolidated Paid-In Equity at the time of incurrence thereof;

             (d) Additional Senior Indebtedness as provided in Section 2.04,
provided that (i) after the incurrence thereof the Leverage Ratio set forth in
Section 6.10 or the EBITDA Test set forth in Section 6.09 (whichever is then
applicable) shall be satisfied as of the last day of the last fiscal quarter
last ended for which financial statements have been delivered in accordance with
Section 5.01(a), on a pro forma basis as if such Additional Senior Indebtedness
and any other Indebtedness which was incurred after such last day was incurred
and outstanding on such last day and any Indebtedness which was repaid after
such last day was not outstanding on such last day, and (ii) the weighted
average life of such Additional Senior Indebtedness is not shorter than the
shorter of (A) 4.3 years or (B) the remaining weighted average life of the
Indebtedness under the Alcatel Credit Agreement and the Qualcomm Credit
Agreement outstanding immediately prior to the issuance of such Additional
Senior Indebtedness;

             (e) other Indebtedness outstanding prior to, and to remain
outstanding after, the Closing Date to the extent specified in Schedule 6.04;

             (f) Contingent Obligations of any of the Borrower Group arising
with respect to customary indemnification obligations incurred in connection
with permitted asset dispositions;

             (g) unsecured Indebtedness of the Company taking the form of a
working capital revolving credit facility, provided that (A) the principal
amount of such Indebtedness does not at any time exceed $50,000,000, and (B)
after the incurrence thereof the EBITDA Test set forth in Section 6.09 or the
Leverage Ratio set forth in Section 6.10 (whichever is then applicable) shall be
satisfied on the last day of the last fiscal quarter last ended for which
financial statements have been delivered in accordance with Section 5.01(a), on
a pro forma basis as if such unsecured Indebtedness and any other Indebtedness
which was incurred since such last day was incurred and outstanding on such last
day and any Indebtedness which was paid after such last day was not outstanding
on such last day;

             (h) Indebtedness incurred by any member of Borrower Group, other
than the New Subsidiaries, not otherwise described in this Section 6.04 ("High
Yield Debt"), provided that (A) the proceeds of such High Yield Debt are
intended to be applied (and are applied) to System Costs, to operating expenses
of the Business, or to cover required debt service payments on Senior
Indebtedness, (B) no principal installments of such High Yield Debt are
scheduled to be due and payable (or are otherwise required to be paid by
Holdings) prior to

                                       43
<PAGE>

January 15, 2008, (C) such High Yield Debt is not subject to any Lien on any
property or assets of any member of the Borrower Group (other than any reserve
or similar fund established in connection therewith which is funded from the
proceeds thereof and which is to be used to pay interest or principal on such
High Yield Debt), (D) following the issuance of such High Yield Debt, the EBITDA
Test set forth in Section 6.09 or the Leverage Ratio set forth in Section 6.10
(whichever is then applicable) shall be satisfied as of the last day of the last
fiscal quarter last ended for which financial statements have been delivered in
accordance with Section 5.01(a), on a pro-forma basis as if such High Yield Debt
and any other Indebtedness which was incurred since such last day were issued
and outstanding on such last day and any Indebtedness which was paid after such
last day was not outstanding on such last day, and (E) such High Yield Debt is
issued by Holdings and is not guaranteed by any other member of the Borrower
Group;

             (i) Indebtedness incurred in connection with the financing of
wireless telecommunication handsets, subject to the restrictions contained in
Section 6.01 (xiii);

             (j) Contingent Obligations not otherwise permitted under this
Section 6.04 to the extent not exceeding in the aggregate at any time
outstanding $5,000,000;

             (k) Subordinated Loans;

             (l) Obligations in respect of Swap Agreements as described in
Section 2.07; and

             (m) with respect to all New Subsidiaries, Indebtedness not
exceeding the aggregate principal amount of $5,000,000 outstanding at any one
time; provided, that no category of Permitted Indebtedness under this Section
6.04, other than this clause (m), shall apply to permit the incurrence of
Indebtedness by New Subsidiaries; provided, further, in any event, any guaranty
by any New Subsidiary pursuant to Section 5.13 hereof shall be permitted and
shall not apply to reduce the maximum allowable amount under this clause (m).

        6.05 SUBSIDIARIES. No member of the Borrower Group will establish,
create or acquire any Subsidiary except Wholly-owned Subsidiaries which are
established, formed or purchased in accordance with the restrictions and
limitations set forth in Section 5.13. The assets owned by any such Subsidiary
shall not cause the Borrower Group to breach its representation made in Section
4.10(c) hereof (e.g. Minimum Assets).

        6.06 ADVANCES, INVESTMENTS AND LOANS. No member of the Borrower Group
will lend money or credit or make advances to any Person, or purchase or acquire
any stock, obligations or securities of, or any other interest in, or make any
capital contribution to any Person, except:

             (a) any member of the Borrower Group may invest in Permitted
Investments;

             (b) any member of the Borrower Group may acquire and hold
receivables owing to them, if created or acquired in the ordinary course of
business and payable or dischargeable in accordance with customary trade terms;

                                       44
<PAGE>

             (c) any member of the Borrower Group may incur intercompany
Indebtedness to the extent permitted pursuant to Section 6.04(b);

             (d) any member of the Borrower Group may acquire and own
investments (including debt obligations) received in connection with the
bankruptcy or reorganization of suppliers and customers and in settlement of
delinquent obligations of, and other disputes with, customers and suppliers
arising in the ordinary course of business;

             (e) any member of the Borrower Group may make investments in any
other member of the Borrower Group provided that such investment does not cause
a breach of any representation or covenant hereunder;

             (f) any member of the Borrower Group may make loans and advances to
officers and employees of the Borrower Group (but not to any shareholders or
non-employee directors of a member of the Borrower Group), provided that any
such loan or advance is made in the ordinary course of business and in an
aggregate principal amount not to exceed $5,000,000 (or the Peso Equivalent
thereof) at any time outstanding; and

             (g) any member of the Borrower Group may make acquisitions
permitted by Section 6.02 (g).

        6.07 AFFILIATE TRANSACTIONS. Each member of the Borrower Group will not,
and will not permit any Subsidiary to, enter into any transactions or series of
transactions whether or not in the ordinary course of business, with any
Affiliate other than on terms and conditions substantially as favorable to such
member of the Borrower Group or such Subsidiary as would be obtainable by such
member of the Borrower Group or such Subsidiary at the time in a comparable
arm's-length transactions with a Person other than an Affiliate; provided that
the foregoing restrictions shall not apply to (i) transactions solely among the
members of the Borrower Group, (ii) employment arrangements entered into in the
ordinary course of business with officers of such member, (iii) customary fees
paid to members of the Board of Directors of Holdings, and (iv) any transaction
permitted by the Joint Venture Agreement as in effect on the Closing Date.

        6.08 NO OTHER BUSINESS. No member of the Borrower Group will undertake
and business other than the Business and activities reasonably incidental
thereto.

        6.09 EBITDA TEST. From and after the Trigger Date, the Borrower Group
will no permit the EBITDA Test to be more than the following ratios for the
following dates (when calculating Consolidated Debt less cash and Permitted
Investments) and quarterly and annual periods (when calculating EBITDA) ending
on such dates:

<TABLE>
<CAPTION>
  PERIOD               PERIOD ENDING ON                    EBITDA RATIO
  ------               ----------------                    ------------
<S>                    <C>                                 <C>
  Annual               December 31, 2003                           8:1

  Quarterly            March 31, June 30 and
                       September 30, 2004                          8:1
</TABLE>

                                       45
<PAGE>

<TABLE>
<S>                    <C>                                 <C>
  Annual               December 31, 2004
                       and each December 31 thereafter             6:1

  Quarterly            March 31, June 30 and
                       September 30 of each year,
                       commencing March 31, 2005
                       and thereafter                              6:1
</TABLE>

All calculations made for purposes of determining compliance with this financial
covenant shall be based on financial statements reconciled to U.S. GAAP;
provided, that for purposes of this Section 6.09, Consolidated Debt and
Permitted Investments shall be calculated in Dollars on the date of any
determination.

        6.10 LEVERAGE RATIO. At all times prior to the Trigger Date, the
Borrower Group will not permit the Leverage Ratio to exceed 1.5 to 1.0. All
calculations made for purposes of determining compliance with this financial
covenant shall be based on financial statement reconciled to U.S. GAAP;
provided, that for purposes of this Section 6.10, Consolidated Paid-In Equity
shall be calculated in Dollars on the date of contribution or dates of
contribution of such Consolidated Paid-In Equity, and Consolidated Debt and
Permitted Investments shall be calculated in Dollars on the date of any
determination.

        6.11 LIMITATION ON ISSUANCE OF STOCK. No member of the Borrower Group
(other than Holdings) will, nor will it permit, any of its Subsidiaries,
directly or indirectly, to, issue an. shares of its capital stock or other
securities (or warrants, rights or options to acquire shares or other equity
securities), except (i) in favor of Holdings or another member of the Borrower
Group that is the parent company, (ii) for replacements of then outstanding
shares of Capital Stock, (iii) for stock splits, stock dividends and similar
issuances which do not decrease the percentage ownership of the Borrower Group
in any class of the Capital Stock of such other members or such Subsidiary, and
(iv) for issuances by newly created or acquired Subsidiaries in accordance with
Section 5.13.

        6.12 PREPAYMENTS. So long as the Company shall have any Senior
Indebtedness outstanding, the Company shall not prepay any principal of High
Yield Debt or pay or prepay any principal or interest in respect of Subordinated
Loans.

        6.13 MODIFICATIONS OF CERTAIN DOCUMENTS AND AGREEMENTS. No member of the
Borrower Group shall amend or modify any of its Charter Documents or change its
Fiscal Year without the prior written consent of the Required Voting Parties,
except for any modifications to its Charter Documents (including the Joint
Venture Agreement) that are not materially adverse to any Secured Party. For
purposes of this Section 6.13, any amendment or modification to the Equity
Commitments set forth in the Joint Venture Agreement prior to the date on which
the sum of additional equity contributions made to Holdings after the Closing
Date and the Subordinated Loans made to Holdings after the Closing Date which
have not been repaid equal or exceeds $100,000,000 shall be deemed materially
adverse.

                                       46
<PAGE>

        6.14 ABANDONMENT OF THE SYSTEM. No member of the Borrower Group shall
(i) abandon the System, (ii) agree to abandon the System or (iii) make any
public declaration or statement regarding its intention to abandon the System.

        6.15 HAZARDOUS SUBSTANCES. No member of the Borrower Group shall
release, emit or discharge into the environment any Hazardous Materials in
violation of any Environmental Law to the extent that any such release, emission
or discharge would constitute a Material Adverse Effect. No member of the
Borrower Group will exercise care, custody or control over the System or any
real property owned or leased by any member of the Borrower Group in any manner
that would pose a major or unreasonable hazard to the environment, health or
safety.

        6.16 IMMUNITY. In any proceedings in Mexico or elsewhere in connection
with any of the Financing Agreements to which a member of the Borrower Group is
a party, no such member shall claim for itself or any of its assets immunity
from suit, execution, attachment or other legal process.

        6.17 REGULATIONS. No member of the Borrower Group shall directly or
indirectly apply any part of the proceeds of any Loan or other revenues to the
purchasing or carrying of margin stock within the meaning of Regulation T, U or
X of the Federal Reserve Board, or any regulations, interpretations or rulings
thereunder.

        6.18 INVESTMENT COMPANY ACT. No member of the Borrower Group shall take
(or permit any other Person to take) any action which could reasonably result in
such member falling within the definition of an "investment company" or a
company "controlled" by an "investment company," under the Investment Company
Act of 1940.

        6.19 DISPUTES. No member of the Borrower Group will agree, authorize or
otherwise consent to any proposed settlement, resolution or compromise of any
litigation, arbitration or other dispute with any Person which is an Affiliate,
unless such settlement, resolution or compromise is made on terms similar to
those which would apply if such Person were not an Affiliate.

                                    ARTICLE 7

                                EVENTS OF DEFAULT

        Each of the specified events set forth in Sections 7.01 through 7.16
shall constitute an "Event of Default":

        7.01 PAYMENTS. A failure by one or more members of the Borrower Group to
pay (whether by scheduled maturity, required prepayment, by acceleration or
otherwise) any principal of any Senior Indebtedness, any interest on any Senior
Indebtedness, any other amounts owing hereunder or under any other Financing
Agreement or any other amounts constituting Obligations within three Business
Days after such principal, interest or other amount first becomes due.

                                       47
<PAGE>

        7.02 REPRESENTATIONS. Any representation or warranty made by any
Sponsor, Guarantor, or any member of the Borrower Group herein or in any other
Financing Agreement or any representation, warranty or statement in any
certificate, financial statement or other document furnished to any Secured
Party by or on behalf of the Borrower Group hereunder or under any other
Financing Agreement shall prove to have been false or misleading in any material
respect as of the time made, deemed made, confirmed or furnished; provided,
however, that no Event of Default shall occur pursuant to this Section 7.02 if
the false or misleading representation, warranty or statement can be eliminated
or otherwise cured within 30 days after any responsible officer of the Borrower
Group receives notice or has knowledge thereof such that the applicable
representation, warranty or statement is no longer false or misleading in any
material respect.

        7.03 COVENANTS.

             (a) A member of the Borrower Group shall default in the due
performance or observance by it of any term, covenant or agreement contained in
Sections 5.13, 5.15, 5.16, 5.17 or Article 6.

             (b) Any member of the Borrower Group shall default in the due
performance or observance by it of any term, covenant or agreement contained
herein or in any other Financing Agreement (except as otherwise provided in
Section 7.01 and paragraph (a) of this Section 7.03), and such default shall
continue unremedied for a period of 30 days after the date on which written
notice thereof shall have been received by a member of the Borrower Group from
the Collateral Agent; provided, that if (A) any such default under this Section
7.03(b) does not involve the payment of money and cannot be cured within such
30-day period, (B) such failure is in fact susceptible of cure, (C) no other
independent Default or Event of Default has occurred and is continuing, (D) the
Borrower Group is proceeding with diligence and in good faith to cure such
failure, (E) the existence of such failure does not constitute a Material
Adverse Effect and (F) the Collateral Agent shall have received an officer's
certificate signed by an Authorized Officer of the Company to the effect of
clauses (A), (B), (C), (D) and (E) above and describing all action the Borrower
Group is taking to cure such failure, such 30-day cure period shall be extended
by up to an additional 60 days as shall be necessary for the Borrower Group to
diligently cure such failure.

        7.04 DEFAULT UNDER OTHER AGREEMENTS.

             (a) Any member of the Borrower Group defaults for a period beyond
the applicable grace period in the payment of any principal, interest or other
amount due under any agreement evidencing, securing or creating any Indebtedness
of such member (including swap or similar derivative agreements) in excess
(individually or in the aggregate) of $15,000,000.

             (b) Any member of the Borrower Group shall default in the
observance or performance of any agreement or condition relating to any
Indebtedness the principal amount of which (individually or in the aggregate)
exceeds $25,000,000, or any other event or condition shall have occurred
thereunder, the effect of which default or other event or condition is to cause,
or to permit the holder or holders of such Indebtedness (or a trustee acting

                                       48
<PAGE>
on behalf of such holders) to cause any such Indebtedness to become due prior to
its stated maturity; or any such Indebtedness of any member of the Borrower
Group shall be declared due and payable prior to the stated maturity thereof.

        7.05 INVOLUNTARY BANKRUPTCY, ETC. An involuntary proceeding shall have
been commenced against any member of the Borrower Group or seeking that such
Person be wound up or liquidated, adjudging such Person bankrupt or insolvent or
seeking reorganization, arrangement, adjustment or composition of or in respect
of such Person under any Applicable Law or seeking the appointment of a
receiver, liquidator, sindico, interventor, assignee, trustee, sequestrator (or
other similar official) of such Person or of any substantial part of its
property or other assets, or the winding up or liquidation of its affairs and
such proceeding continues undismissed for 60 days.

        7.06 VOLUNTARY BANKRUPTCY, ETC. The institution by any member of the
Borrower Group of proceedings to be adjudicated bankrupt or insolvent, or the
consent by it to the institution of bankruptcy or insolvency proceedings against
it; or the filing by it of a petition or answer or consent seeking
reorganization or debt relief under any Applicable Law or to the appointment of
a receiver, liquidator, sindico, interventor, assignee, trustee, sequestrator
(or other similar official) of any such Person or of any substantial part of its
property; or the making by it of an assignment for the benefit of creditors
generally; or the admission by it in writing of its inability to pay its debts
generally as they become due; or any other event shall have occurred which under
any Applicable Law would have an effect analogous to any of those events listed
above in this Section 7.06 with respect to any such Person; or any action is
taken by any such Person for the purpose of effecting any of the foregoing.

        7.07 ANALOGOUS PROCEEDINGS. There occurs, in relation to any member of
the Borrower Group, in any country or territory in which any of them carries on
business or to the jurisdiction of whose courts any part of their assets is
subject, any event which in that country or territory corresponds with, or has
an effect equivalent or similar to, any of those mentioned in Section 7.05 or
7.06.

        7.08 ATTACHMENT OF COLLATERAL. Any Person other than the Collateral
Agent for the benefit of the Secured Parties or a Senior Lender attaches or
institutes proceedings to attach all e any part of the Collateral, and any
attachment or any judgment Lien against any such Collateral (i) remains
unlifted, unstayed or undischarged for a period of 30 days or (ii) is upheld in
a final nonappealable judgment of a court of competent jurisdiction.

        7.09 FINANCING AGREEMENTS.

             (a) This Agreement or any of the Financing Agreements or any
material provision hereof or thereof is or becomes invalid, illegal or
unenforceable or the Company or any Guarantor shall have repudiated or disavowed
or taken any action to challenge the validity or enforceability of such
agreement.

             (b) Any of the Security Documents, once executed and delivered,
shall fail to provide the Liens, security interests, rights, titles, interests,
remedies, powers or privilege intended to be created thereby (including the
priority intended to be created thereby), or such

                                       49
<PAGE>
Lien shall fail to have the priority contemplated therefor in such Security
Documents, or any such Security Document shall cease to be in full force and
effect, or the validity thereof or the applicability thereof to any obligations
purported to be secured or guaranteed thereby or any part thereof, shall be
disaffirmed in writing by or on behalf of a member of the Borrower Group or any
other party thereto.

        7.10 EXPROPRIATION. There shall have occurred any act or series of acts
attributable to a Mexican Governmental Authority which (i) in the reasonable
judgment of the Required Voting Parties has the effect of depriving the Senior
Lenders of their fundamental rights as creditors in respect of this Agreement
(including rights under the security interests granted under the Security
Documents), or (ii) confiscates, expropriates or nationalizes the ownership or
control of all or any substantial part of the System or other assets of a member
of the Borrower Group and such act or series of acts continues uncured for 120
days or more.

        7.11 MONETARY RESTRICTIONS. Any law, order, decree or regulation shall
impose and restriction on (i) the lawful transfer of Dollars by the Borrower
Group from Mexico to the Collateral Agent (and from the Collateral Agent to any
other Person or locale whether within or outside of Mexico), or (ii) the
conversion of (a) Dollars to Pesos or (b) Pesos to Dollars and which restriction
constitutes a Material Adverse Effect.

        7.12 JUDGMENTS. One or more judgments or decrees shall be entered
against one or more members of the Borrower Group and such judgments or decrees
shall not be vacated discharged or stayed or bonded pending appeal for any
period of 60 consecutive days, and the aggregate amount of all such judgments
and decrees outstanding at any time (except to the extent any applicable
insurer(s) shall have acknowledged liability therefor) exceeds $5,000,000.

        7.13 LICENSES AND PERMITS. The Borrower Group shall fail to obtain,
renew, maintain or comply in all material respects with the Licenses (or any
portion thereof); or any License (or any portion thereof) shall be rescinded,
terminated, suspended, modified or withheld or shall be determined to be invalid
or shall cease to be in full force and effect; or any proceedings shall be
commenced by or before any Governmental Authority for the purpose of rescinding,
terminating, suspending, modifying or withholding any such License (or any
portion thereof) and such proceeding is not dismissed within 60 days; and as a
result of such failure, rescission, determination of invalidity, termination,
suspension, modification, withholding, cessation or commencement the valid,
enforceable and effective Licenses then owned by the Company (a) fail to cover
all of Region 9, and either all of Region 4 or all of Region 6 (as such Regions
are defined in Exhibit A to the Joint Venture Agreement) or (b) result in
Covered Pops being less than 40,000,000 Pops.

        7.14 CHANGE OF CONTROL. A Change of Control shall have occurred and be
continuing.

        7.15 OTHER SENIOR INDEBTEDNESS. An "event of default" shall have
occurred and be continuing under (and as defined in the documentation relating
to) any Credit Agreement relating to Senior Indebtedness, including any Senior
Indebtedness which is described in Section 2.04.

                                       50

<PAGE>
        7.16 MORTGAGE. The Company shall fail to deliver to the Collateral Agent
within forty five (45) days after the filing of Amendment No. 1 to the Mortgage,
the first testimony of the public deed evidencing the execution and delivery of
Amendment No. 1 to the Mortgage, duly recorded at the Public Registry of
Commerce of the Federal District of Mexico; or the Company shall fail to deliver
to the Collateral Agent (i) within ninety (90) days after filing of the
Mortgage, the first testimony of the public deed evidencing the execution and
delivery of the Mortgage, duly recorded at the Telecommunications Registry of
Mexico and (ii) within ninety (90) days after filing of Amendment No. 1 to the
Mortgage, the first testimony of the public deed evidencing the execution and
delivery of Amendment No. 1 to the Mortgage, duly recorded at the
Telecommunications Registry of Mexico.

        7.17 REMEDIES. Subject to the provisions of the Intercreditor Agreement
and the Collateral Agency Agreement, upon the occurrence and during the
continuation of an Event of Default, the Secured Parties may, without further
notice of default, presentment or demand for payment, protest or notice of
non-payment or dishonor, or other motion or demands of any kind, all such
notices and demands being waived (to the extent permitted by Applicable Law),
exercise any or all rights and remedies at law or in equity (in any combination
or order that the Secured Parties may elect) and, without limitation or
prejudice to the foregoing, the Secured Parties may:

             (a) unless otherwise provided in the applicable Credit Agreement,
refuse, and they shall not be obligated, to make any Disbursements and/or may
suspend or terminate their Commitments;

             (b) declare and make all sums of accrued and outstanding principal
and accrued but unpaid interest remaining under the Credit Agreements and Credit
Facilities, and any other Senior Indebtedness, including unpaid fees, costs and
charges, immediately due and payable, provided that in the event of an Event of
Default occurring under Section 7.05, 7.06 or 7.07 (in each case in respect of a
member of the Borrower Group), all such amounts shall become immediately due and
payable without reference to the Credit Agreements or any other Financing
Agreement and without further notice, demand or act of any Secured Party;

             (c) set off and apply all monies on deposit with any Secured Party
to the satisfaction of the Obligations under all of the Financing Agreements and
otherwise in accordance with the terms of any such applicable document; and

             (d) exercise any and all rights and remedies available to them
under any of the Security Documents or any of the other Financing Agreements or
as otherwise permitted by Applicable Law.

                                    ARTICLE 8

                                  MISCELLANEOUS

        8.01 PAYMENT OF EXPENSES, ETC.

            (a) Without limiting any amounts agreed to be paid by the Borrower
Group under the applicable Credit Agreements, each member of the Borrower Group
shall, jointly and severally, whether or not the transactions herein
contemplated are consummated, pay:

                                       51
<PAGE>

(i) all reasonable out-of-pocket costs and expenses of each of the Collateral
Agent and the Intercreditor Agent (including all commissions, charges, costs and
expenses for the conversion of currencies and all other reasonable costs,
charges and expenses (including all reasonable fees and expenses of the legal
counsel, consultants and advisors for any of the foregoing)) made, paid,
suffered or incurred in connection with (A) any amendment or modification to, or
the protection or preservation of any right or claim under, or consent or waiver
in connection with, this Agreement or any other Transaction Document, any such
other document or instrument related hereto or thereto, or any Collateral, (B)
the authentication, registration, translation and recordation (where
appropriate) and the delivery of the evidences of indebtedness relating to the
Loans and the Disbursements thereof and (C) the administration and enforcement
(including with respect to a work out) of this Agreement, the other Transaction
Documents and any other documents and instruments referred to herein or therein
(including the reasonable fees and disbursements of one common Mexican counsel
and one common United States counsel for the Collateral Agent and the
Intercreditor Agent upon the occurrence and during the continuation of an Event
of Default, (ii) the fees of the Insurance Consultant retained pursuant to the
Financing Agreements, and (iii) the expenses set forth in Section 3.06 and
Section 6.03 (a) (iv) of the Intercreditor Agreement.

            (b) Each member of the Borrower Group shall, whether or not the
transactions herein contemplated are consummated, jointly or severally,
indemnify each of the Secured Parties and their respective officers, directors,
employees, representatives, attorneys and agents (each an "Indemnified Party"
and, collectively, the "Indemnified Parties") from and hold each of them
harmless against any and all liabilities, obligations, losses, damages,
penalties, claims, actions, judgments, suits, costs, expenses and disbursements
incurred by any of them as a result of, or arising out of, or in any way related
to, or by reason of, any investigation, litigation or other proceeding or
inquiry (whether or not such Indemnified Party is a party thereto) related to
the entering into and/or performance of any Transaction Document or the
disbursement of, or use of the proceeds of, any Senior Indebtedness or the
consummation of any transactions contemplated herein or in any Transaction
Document, including the reasonable fees and disbursements of counsel selected by
such Indemnified Party incurred in connection with any such investigation,
litigation or other proceeding or in connection with enforcing the provisions of
this Section 8.01(b) (but excluding any such liabilities, obligations, losses,
damages, penalties, claims, actions, judgments, suits, costs, expenses and
disbursements to the extent incurred by reason of the gross negligence or
willful misconduct of the Person to be indemnified or its officers, directors,
employees, representatives, attorneys or agents, as the case may be, as
determined pursuant to a final, non-appealable judgment by a court of competent
jurisdiction).

            (c) Without limitation to the provisions of Section 8.01(b) above,
each member of the Borrower Group agrees to defend, protect, indemnify and hold
harmless each Indemnified Party from and hold each of them harmless against any
and all liabilities (including removal and remedial actions), obligations,
losses; damages, penalties, claims, actions, judgments, suits, costs, expenses
and disbursements (including reasonable attorneys' and consultants' fees and
disbursements) imposed on or asserted against any such Persons directly or
indirectly based on, or arising or resulting from (i) the actual or alleged
presence of Hazardous Materials on, under or at the System or any real property
owned or leased by any member of the Borrower Group, (ii) any Environmental
Claim relating to any member of the Borrower Group or the System or any real
property owned or leased by any member of the Borrower Group, or

                                       52
<PAGE>
(iii) the exercise of any Indemnified Party's rights under any of the provisions
of this Section 8.01, but excluding any matter based solely on the gross
negligence or willful misconduct of any such Indemnified Party, as the case may
be, as determined pursuant to a final, non-appealable judgment by a court of
competent jurisdiction.

            (d) To the extent that the undertaking in the preceding paragraphs
of this Section 8.01 may be unenforceable because it is violative of any law or
public policy, the Borrower Group will contribute the maximum portion that it is
permitted to pay and satisfy under Applicable Law to the payment and
satisfaction of such undertakings.

            (e) All sums paid and costs incurred by any Indemnified Party with
respect to any matter indemnified hereunder shall bear interest at the default
rate applicable to their respective Credit Facility from the date any member of
the Borrower Group receives notice thereof from such Indemnified Party, until
reimbursed by the Borrower Group, and all such sums and costs shall be added to
the debt and be secured by the Security Documents and shall be immediately due
and payable on demand. Each such Indemnified Party shall promptly notify the
Company in a timely manner of any such amounts payable by the Borrower Group
hereunder, provided that any failure to provide such notice shall not affect the
Borrower Group's obligations under this Section 8.01.

            (f) Each Indemnified Party pursuant to Section 8.01(b) and (c)
above, within 10 days after the receipt by it of notice of the commencement of
any action for which indemnity may be sought by it, or by any Person controlling
it, from the Borrower Group on account of the agreements contained in this
Section 8.01, shall notify the Company in writing of the commencement thereof,
but the failure of such Indemnified Party to so notify the Company of any such
action shall not release the Borrower Group from any liability which it may have
to such Indemnified Party.

        8.02 RIGHT OF SETOFF. Subject to the terms of the Intercreditor
Agreement, upon the occurrence and during the continuance of any Event of
Default, each Senior Lender is hereby authorized at any time and from time to
time, to the fullest extent permitted by law, to set off and apply any and all
deposits (general or special, time or demand, provisional or final) at any time
held and other indebtedness at any time owing by such Senior Lender to or for
the credit or the account of any member of the Borrower Group against any and
all of the obligations of the Borrower Group now or hereafter existing under the
applicable Credit Agreement and, if applicable, the corresponding Note held by
such Senior Lender, irrespective of whether or not such Senior Lender shall have
made any demand under the applicable Credit Agreement or Note, and without
presentment, protest or other notice of any kind to any member of the Borrower
Group, all of which are hereby expressly waived and although such obligations
may be unmatured.

        8.03 NOTICES.

             (a) Except as otherwise expressly provided herein or in any
Financing Agreement, all notices and other communications provided for hereunder
or thereunder shall be (i) in writing (including telex or telecopier) and (ii)
telexed, telecopied or sent by overnight courier (if for inland delivery) or
international courier (if for overseas delivery) to a party hereto

                                       53
<PAGE>

(with a copy to the Relevant Party) or to a Relevant Party at its address and
contact number specified in Schedule 8.03, or at such other address and contact
number as is designated by such party in a written notice to the other parties
hereto.

             (b) All such notices and communications shall be effective (i) if
sent by telex, when sent (with the correct answer back), (ii) if sent by
telecopier, when sent (on receipt of confirmation) and (iii) if sent by courier,
(x) one day after deposit with an overnight courier if for inland delivery and
(y) three days after deposit with an international courier if for overseas
delivery.

        8.04 BENEFIT OF AGREEMENT. This Agreement shall be binding upon and
inure to the benefit of and be enforceable by the respective successors and
assigns of the parties hereto; provided, however, no member of the Borrower
Group may assign or transfer any of its rights or obligations hereunder without
the prior written consent of each of the Senior Lenders. Any Senior Lender may
transfer, assign or grant its rights hereunder in connection with an assignment
or transfer of all or any part of its interest in its Senior Indebtedness in
accordance with the provisions of the applicable Credit Agreement; provided that
any such assignee has agreed to be bound by the terms of the Financing
Agreements, including the Intercreditor Agreement. Notwithstanding anything to
the contrary contained in any Financing Agreement (including this Agreement),
the Senior Lenders under each respective Credit Agreement shall be entitled to
appoint a successor administrative agent in accordance with the terms of such
Credit Agreement upon the resignation or removal of their Administrative Agent
without any consent of or notice to any other Secured Party, and upon such
appointment becoming effective in accordance with such terms, such successor
shall be deemed to be the "Administrative Agent" of such Senior Lenders for all
purposes of this Agreement and the other Financing Agreements. Each of the
Relevant Parties shall be deemed a third party beneficiary to this Agreement to
the extent that it is to receive any document, instrument, notification or other
paper as provided herein.

        8.05 NO WAIVER; REMEDIES CUMULATIVE. No failure or delay on the part of
the Collateral Agent, any other Agent, or any Senior Lender in exercising any
right, power or privilege hereunder or under any other Financing Agreement and
no course of dealing between any member of the Borrower Group, or any of its
Affiliates, on the one hand, and the Collateral Agent, any other Agent and the
Senior Lenders, on the other hand, shall impair any such right, power or
privilege or operate as a waiver thereof; nor shall any single or partial
exercise of any right, power or privilege hereunder or under any other Financing
Agreement preclude any other or further exercise thereof or the exercise of any
other right, power or privilege hereunder of thereunder. The rights, powers and
remedies herein or in any other Financing Agreement expressly provided are
cumulative and not exclusive of any rights, powers or remedies which any party
thereto would otherwise have. No notice to or demand on a member of the Borrower
Group in any case shall entitle such member (or any other member) to any other
or further notice or demand in similar or other circumstances or constitute a
waiver of the rights of the Collateral Agent, any other Agent, or any Senior
Lender to any other or further action in any circumstances without notice or
demand.

        8.06 SEVERABILITY. Any provision of any Financing Agreement which is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the

                                       54
<PAGE>
extent of prohibition or unenforceability, but that shall not invalidate the
remaining provisions of such Financing Agreement or affect such provision in any
other jurisdiction.

        8.07 COUNTERPARTS. This Agreement may be executed in any number of
counterparts and by the different parties hereto on separate counterparts, each
of which, when executed and delivered, shall be effective for purposes of
binding the parties hereto, but all of which shall together constitute one and
the same instrument. A set of counterparts executed by all the parties hereto
shall be lodged with each of the parties hereto.

        8.08 EFFECTIVENESS. This Agreement shall become effective on the date
hereof. Any Credit Agreement shall become effective pursuant to its terms
(except for this Agreement having become effective, if that is a condition of
effectiveness of any of such agreement).

        8.09 SURVIVAL. All indemnities set forth herein, including in Section
8.01, shall survive the execution and delivery of this Agreement and the making
and repayment of the Senior Indebtedness.

        8.10 CURRENCY OF PAYMENT. The obligation of the Company and the Borrower
Group to pay in Dollars those amounts of the sums specified to be due in
Dollars, under this Agreement or the respective Financing Agreements (the
"Financing Agreement Currency") shall not be deemed to have been novated,
discharged or satisfied by any tender of (or recovery under judgment expressed
in) any currency other than the Financing Agreement Currency, except to the
extent to which such tender (or recovery) shall result in the effective payment
of such aggregate amount in the applicable Financing Agreement Currency at the
place where such payment is to be made and, accordingly, the amount (if any) by
which any such tender (or recovery) shall fall short of such amount shall be and
remain due to the Senior Lenders as a separate Obligation, unaffected by
judgment having been obtained (if such is the case) for any other amounts due in
respect of this Agreement or the Financing Agreements.

        8.11 JUDGMENT CURRENCY.

             (a) The obligations of the Borrower Group hereunder and under the
other Financing Agreements to make payments in Dollars (the "Obligation
Currency"), shall not be discharged or satisfied by any tender or recovery
pursuant to any judgment expressed in or converted into any currency other than
the Obligation Currency, except to the extent that such tender or recovery
results in the effective receipt by the respective Secured Party of the full
amount of the Obligation Currency expressed to be payable to such Secured Party
under this Agreement or the other Transaction Documents. If for the purpose of
obtaining or enforcing judgment against the Company in any court or in any
jurisdiction, it becomes necessary to convert into or from any currency other
than the Obligation Currency (such other currency being hereinafter referred to
as the "Judgment Currency") an amount due in the Obligation Currency, the
conversion shall be made at the Peso Equivalent, in the case of Pesos, and in
the case of other currencies, the rate of exchange (as quoted by the
Intercreditor Agent or if the Intercreditor Agent fails to quote a rate of
exchange on such currency, by a known dealer in such currency designated by the
Intercreditor Agent) determined, in each case, as of the day on which the
judgment is given (such Business Day being hereinafter referred to as the
"Judgment Currency Conversion Date").

                                       55
<PAGE>
             (b) If there is a change in the rate of exchange prevailing between
the Judgment Currency Conversion Date and the date of actual payment of the
amount due, the Borrower Group covenants to pay, or cause to be paid, such
additional amounts, if any (but in any event not a lesser amount), as may be
necessary to ensure that the amount paid in the Judgment Currency, when
converted at the rate of exchange prevailing on the date of payment, will
produce the amount of the Obligation Currency which could have been purchased
with the amount of Judgment Currency stipulated in the judgment or judicial
award at the rate of exchange prevailing on the Judgment Currency Conversion
Date.

             (c) For purposes of determining the Peso Equivalent or rate of
exchange under this Section 8.11, such amounts shall include any premium and
costs payable in connection with the purchase of the Obligation Currency.

        8.12 EVIDENCE OF DEBT.

             (a) Each Senior Lender shall maintain, or cause to be maintained,
in accordance with its usual practice, internal records evidencing the amounts
from time to time lent by and owing to it under its respective Financing
Agreement and each of the payments from time to time made in respect thereof.

             (b) Except as otherwise provided in any Financing Agreement, in any
legal action or proceeding arising out of or in connection with any Financing
Agreement or any other Transaction Document, the entries made in the internal
records maintained by each of the Senior Lenders pursuant to clause (a) above
shall be prima facie evidence of the existence and amount of obligations of the
Borrower Group as therein recorded.

        8.13 ENGLISH LANGUAGE This Agreement is made in the English language.
One Spanish language translation of this Agreement prepared at the Company's
expense by an official public interpreter and approved by Mexican counsel to the
Company and Mexican counsel to the Senior Lenders under the Alcatel Credit
Agreement and the Qualcomm Credit Agreement shall be the agreed Spanish language
translation hereof for all purposes. Such translation and no other may be filed
in one or more public registries in Mexico or used in any proceeding in Mexico.
For all purposes, the English language version hereof shall be the original
instrument and in all cases of conflict between the English and the Spanish
versions, the English version shall control.

        8.14 ENTIRE AGREEMENT. This Agreement (including the exhibits, schedules
and appendices attached hereto), including the documents referred to herein,
embodies the entire agreement and understanding of the parties hereto and
supersedes all prior agreements and understandings of the parties hereto
relating to the subject matter herein contained.

        8.15 WAIVER OF SOVEREIGN IMMUNITY. Each member of the Borrower Group
acknowledges and agrees that the activities contemplated by the provisions of
the Financing Agreements are commercial in nature rather than governmental or
public, and therefore acknowledges and agrees that it is not entitled to any
right of immunity on the grounds of sovereignty or otherwise with respect to
such activities or in any legal action or proceeding arising out of or relating
to the Financing Agreements. Each member of the Borrower Group, in

                                       56
<PAGE>

respect of itself, its process agents, and its properties and revenues,
expressly and irrevocably waives any such right of immunity which may now or
hereafter exist (including any immunity from any legal process, from the
jurisdiction of any court or from any execution or attachment in aid of
execution prior to judgment or otherwise) or claim thereto which may now or
hereafter exist, and agrees not to assert any such right or claim in any such
action or proceeding, whether in the United States or otherwise.

        8.16 REINSTATEMENT. This Agreement shall continue to be effective or be
reinstated, as the case may be, if at any time payment and performance of the
obligations of the Company or the Borrower Group hereunder, or any part thereof,
is, pursuant to Applicable. Law, rescinded or reduced in amount, or must
otherwise be restored or returned by the Collateral Agent or any Secured Party.
In the event that any payment or any part thereof is so rescinded, reduced,
restored or returned, such obligations shall be reinstated and deemed reduced
only by such amount paid and not so rescinded, restored or returned.

        8.17 GOVERNING LAW; SUBMISSION TO JURISDICTION; VENUE; WAIVER OF JURY
TRIAL.

             (a) This Agreement shall be governed by, and construed in
accordance with, the law of the State of New York, United States, without
reference to principles of conflicts of law (other than Section 5-1401 of the
General Obligations Laws of the State of New York); provided, however, that, in
connection with any legal action or proceeding (other than an action to enforce
a judgment obtained in another jurisdiction) brought in respect to this
Agreement in the courts of Mexico or any political subdivision thereof, this
Agreement shall be deemed to be an instrument made under the laws of Mexico and
for such purposes shall be governed by, and construed in accordance with, the
laws of the Federal District of Mexico.

             (b) Each party hereto hereby agrees that any suit, action or
proceeding with respect to this Agreement or any judgment entered by any court
in respect thereof may be brought in the United States of America District Court
for the Southern District of New York, in the Supreme Court of the State of New
York sitting in New York County (including its Appellate Division), or in any
other appellate court in the State of New York or the competent courts of the
Federal District of Mexico, as the party commencing such suit, action or
proceeding may elect in its sole discretion; and each party hereto hereby
irrevocably submits to the jurisdiction of such courts for the purpose of any
such suit, action, proceeding or judgment. Each party hereto further submits,
for the purpose of any such suit, action, proceeding or judgment brought or
rendered against it, to the appropriate courts of the jurisdiction of its
domicile. Each member of the Borrower Group hereby waives any rights to a
specific jurisdiction it may have by virtue of its present or any future
domicile, or otherwise.

             (c) Each member of the Borrower Group hereby agrees that service of
all writs, process and summonses in any such suit, action or proceeding brought
in the State of New York may be made upon CT Corporation System, presently
located at 1633 Broadway, New York, New York 10019, U.S.A. (the "Process
Agent"), and each member of the Borrower Group hereby confirms and agrees that
the Process Agent has been duly and irrevocably appointed as its agent and true
and lawful attorney-in-fact in its name, place and stead to accept such service
of any and all such writs, process and summonses, and agrees that the failure of
the

                                       57
<PAGE>

Process Agent to give any notice of any such service of process to such member
of the Borrower Group shall not impair or affect the validity of such service or
of any judgment based thereon. Each member of the Borrower Group hereby further
irrevocably consents to the service of process in any suit, action or proceeding
in said courts by the mailing thereof by any Secured Party by registered or
certified mail, postage prepaid, at its address set forth beneath its signature
hereto.

             (d) Nothing herein shall in any way be deemed to limit the ability
of the Secured Parties to serve any such writs, process or summonses in any
other manner permitted by applicable law or to obtain jurisdiction over any
member of the Borrower Group in such other jurisdictions, and in such manner, as
may be permitted by applicable law.

             (e) Each member of the Borrower Group hereby irrevocably waives any
objection that it may now or hereafter have to the laying of the venue of any
suit, action or proceeding arising out of or relating to this Agreement or any
other Financing Agreement brought in the Supreme Court of the State of New York,
County of New York, or in the United States of America District Court for the
Southern District of New York or the competent courts of the Federal District of
Mexico, and hereby further irrevocably waives any claim that any such suit,
action or proceeding brought in any such court has been brought in an
inconvenient forum.

             (f) The Borrower Group hereby agrees to cause the Process Agent to
execute and deliver to each Agent a letter from the Process Agent to each such
Agent confirming Process Agent's acceptance of the appointment by the members of
Borrower Group.

             (g) EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ALL RIGHT
TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR
RELATING TO ANY OF THE FINANCING AGREEMENTS OR THE TRANSACTIONS CONTEMPLATED
THEREBY.

        8.18 CALCULATIONS; COMPUTATIONS. The financial statements to be
furnished to the Agents, to the Relevant Parties and/or the Senior Lenders
pursuant hereto shall be made and prepared in accordance with GAAP consistently
applied throughout the periods involved (except as set forth in the notes
thereto); provided that (x) except as otherwise specifically provided herein,
all computations of determining compliance with Sections 6.09 and 6.10,
including definitions used therein, except to the extent otherwise set forth
therein, shall utilize accounting principles and policies in effect at the
Closing Date, (y) in the event GAAP shall be modified from that in effect on the
Closing Date, the Borrower Group shall be entitled to utilize GAAP, as so
modified, for purposes of such computations to the extent that (i) the Company
gives each Administrative Agent 30 days' prior written notice of such proposed
modification and (ii) prior thereto the Company and such Administrative Agents
shall have agreed upon adjustments, if any, to such definitions and/or such
Sections the sole purpose of which shall be to give effect to such proposed
change (it being understood and agreed that to the extent that the Company and
such Administrative Agent cannot agree on appropriate adjustments to such
definition and/or Sections (or that no adjustments are necessary), the proposed
change will not be utilized for the purposes of computations under such
definition and/or Sections) and (z) if at any time such computations utilize
accounting principles different from those utilized in the financial

                                       58
<PAGE>

statements furnished pursuant to Section 5.01(a), such financial statements
shall be accompanied by reconciliation worksheets.

        8.19 NO THIRD-PARTY BENEFICIARIES. The covenants contained herein are
made solely for the benefit of the parties hereto (and the Senior Lenders), and
successors and assigns of such parties as specified herein, and shall not be
construed as having been intended to benefit any third party not a party to this
Agreement, except as expressly set forth in Section 8.04 or otherwise herein.

        8.20 AMENDMENTS.

             (a) Any provision of this Agreement may be amended, modified,
supplemented or waived only by an instrument in writing signed by each member of
the Borrower Group, the Administrative Agents, the Collateral Agent and the
Intercreditor Agent (with the Administrative Agents, Collateral Agent and
Intercreditor Agent acting pursuant to the provisions of the Intercreditor
Agreement).

             (b) Notwithstanding anything in the Intercreditor Agreement to the
contrary and only with respect to the following terms set forth therein, any
amendment or modification thereof which would extend the time periods or
decrease any Voting Party Percentage set forth in the definition of "Initiating
Voting Parties" or which would increase the Voting Party Percentage applicable
to clauses (iii) and (iv) of the definition of "Required Voting Parties," shall
be signed by each member of the Borrower Group; provided however, that neither
the foregoing nor any provision of the Intercreditor Agreement shall in any way
restrict the ability of the parties to the Intercreditor Agreement or the Senior
Lenders from entering into additional agreements among themselves as to how such
Persons will vote in connection with any issue arising under the Financing
Agreements notwithstanding the fact that such additional agreements would have
the practical effect of making such amendment or modification.

        8.21 CONFIDENTIALITY. Subject to the right of each Senior Lender to
assign or sell a participation in any Loans held by it or in its commitment and
to furnish information in connection therewith, the Senior Lenders shall hold
all nonpublic information obtained pursuant to the requirements of this
Agreement which has been identified as such by any member of the Borrower Group
in accordance with its customary procedure for handling confidential information
of this nature and in accordance with safe and sound banking practices and in
any event may make disclosure to its Affiliates, employees, auditors, advisors,
or counsel or as reasonably required by any bona fide transferee or participant
in connection with the contemplated transfer of any Loans or participation
therein (so long as such transferee or participant agrees to be bound by the
provisions of this Section 8.21) or as required or requested by any governmental
agency or representative thereof or pursuant to legal process; provided that,
unless specifically prohibited by Applicable Law or court order, each Senior
Lender shall notify the Company of any request by any governmental agency or
representative thereof (other than any such request in connection with an
examination of the financial condition of such Senior Lender by such
governmental agency) for disclosure of any such nonpublic information prior to
disclosure of such information; and provided further, that in no event shall any
Senior Lender be obligated or required to return any materials furnished by any
member of the Borrower Group.

                                       59
<PAGE>

        IN WITNESS WHEREOF, the parties hereto have caused this Common Agreement
to be executed and acknowledged by their respective officers or representatives
hereunto duly authorized, as of the date first above written.

PEGASO COMUNICACIONES Y SISTEMAS, S.A. DE C.V.

By:
   ----------------------------------------
   Name:
        -----------------------------------
   Title:
         ----------------------------------

PEGASO TELECOMUNICACIONES, S.A. DE C.V.

By:
   ----------------------------------------
   Name:
        -----------------------------------
   Title:
         ----------------------------------

PEGASO PCS, S.A. DE C.V.

By:
   ----------------------------------------
   Name:
        -----------------------------------
   Title:
         ----------------------------------

PEGASO RECURSOS HUMANOS, S.A. DE C.V.

By:
   ----------------------------------------
   Name:
        -----------------------------------
   Title:
         ----------------------------------

                                       60
<PAGE>
CITIBANK, N.A., as Intercreditor Agent

By:
   ----------------------------------------
   Name:
        -----------------------------------
   Title:
         ----------------------------------

CITIBANK MEXICO, S.A., GRUPO FINANCIERO CITIBANK, as Collateral Agent

By:
   ----------------------------------------
   Name:
        -----------------------------------
   Title:
         ----------------------------------

CITIBANK INTERNATIONAL PLC, as Alcatel Administrative Agent

By:
   ----------------------------------------
   Name:
        -----------------------------------
   Title:
         ----------------------------------

ABN AMRO BANK N.V., as Qualcomm Administrative Agent

By:
   ----------------------------------------
   Name:
        -----------------------------------
   Title:
         ----------------------------------

By:
   ----------------------------------------
   Name:
        -----------------------------------
   Title:
         ----------------------------------

                                       61

<PAGE>

                         APPENDIX A TO COMMON AGREEMENT

DEFINED TERMS.

        As used in any Financing Agreement (as defined below), including the
Common Agreement, the following terms shall have the following meanings, except
to the extent otherwise defined in such Financing Agreement:

        "Acceptable Financial Institution" shall mean a bank or trust company
with a combined capital plus surplus of at least $500,000,000 and whose
long-term senior unsecured debt is rated "A" or higher by S&P or "A2" or higher
by Moody's.

        "Additional Senior Indebtedness" shall have the meaning set forth in
Section 2.04. Any Alcatel Loans made under or pursuant to the Alcatel Commitment
Letter (or any credit or similar agreement in connection therewith) constitute
Additional Senior Indebtedness, but shall be permitted as provided in Section
6.04 (a) without compliance with the provisions of Section 6.04(d).

        "Additional Senior Indebtedness Lenders" shall have the meaning set
forth in Section 2.04.

        "Additional Senior Indebtedness Loans" shall mean, collectively, all of
the loans and notes made pursuant to the documentation relating to or evidencing
the Additional Senior Indebtedness.

        "Administrative Agent" shall mean (i) with respect to the Alcatel Credit
Agreement, the Alcatel Administrative Agent, or any successor Administrative
Agent appointed pursuant to Section 10.08 of the Alcatel Credit Agreement, (ii)
with respect to the Qualcomm Credit Agreement, the Qualcomm Administrative
Agent, or any successor Administrative Agent appointed pursuant to Section 10.8
of the Qualcomm Credit Agreement, and (iii) with respect to any Additional
Senior Indebtedness, the administrative agent (or, in the case of notes, bonds
or other debt securities, the trustee, fiscal agent or comparable fiduciary)
appointed pursuant to the documentation evidencing such Additional Senior
Indebtedness, or any successor administrative agent appointed pursuant to the
applicable section of such documentation.

        "Affiliate" shall mean, with respect to a specified Person, any other
Person which directly or indirectly controls, or is under common control with,
such Person. As used in this definition, "control" (including, with its
correlative meanings, "controlled by" and "under common control with") shall
mean possession, directly or indirectly, of power to direct or cause the
direction of management or policies (whether through ownership of securities or
partnership or other ownership interests, by contract or otherwise), provided
that, in any event, any Person which owns directly or indirectly 10% or more of
the securities having ordinary voting power for the election of directors or
other governing body of a corporation or 10% or more of the partnership or other
ownership interests of any other Person will be deemed to control such
corporation or other Person. Notwithstanding the foregoing, (i) no individual
shall be deemed to be an Affiliate of a Person solely by reason of his or her
being a director, committee member, officer or

                                       1
<PAGE>

employee of such person and (ii) each member of the Borrower Group and each of
their respective Affiliates shall be deemed to be an Affiliate of each other
member of the Borrower Group.

        "Agents" shall mean, collectively, the Intercreditor Agent, the
Collateral Agent and the Administrative Agents.

        "Alcatel" shall mean Alcatel, a corporation duly incorporated under the
laws of France.

        "Alcatel Administrative Agent" shall mean Citibank International plc, in
its capacity as Administrative Agent under the Alcatel Credit Agreement.

        "Alcatel Commitment Letter" shall mean the commitment letter dated as of
October 28, 1998, from Electro Banque to, and accepted by, the Company relating
to Facility 2 (as therein defined and described), as supplemented, updated and
confirmed pursuant to SECTION 3.01(v).

        "Alcatel Costs" shall mean all of the amounts (other than value-added
taxes) due and payable by the Company or other members of the Borrower Group to
or for the account of Alcatel Intedel under the provisions of the Alcatel
Procurement Agreement , and including the repayment of any bridge or similar
loan (and interest thereon) made by Citibank, N.A., London Branch to the Company
and guaranteed by Alcatel, the proceeds of which were used to pay the foregoing
costs.

        "Alcatel Credit Agreement" shall mean the Credit Agreement, dated as of
the date hereof, between the Company, the Alcatel Lenders referred to therein
and the Alcatel Administrative Agent.

        "Alcatel Guaranty" shall mean the Guaranty Agreement, dated as of the
date hereof, between Alcatel and the Alcatel Administrative Agent pursuant to
which Alcatel has guaranteed the payment obligations of the Company under the
Alcatel Credit Agreement as therein provided.

        "Alcatel Intedel" shall mean Alcatel Intedel Industria de
Telecomunicacion S.A. de C.V., a sociedad anonima de capital variable under the
laws of Mexico.

        "Alcatel Lenders" shall mean the Persons from time to time making or
carrying Loans and Commitments to the Company under the Alcatel Credit Agreement
or under the credit agreement executed as a result of the Alcatel Commitment
Letter.

        "Alcatel Loans" shall mean, collectively, all of the loans made under
the Alcatel Credit Agreement and all of the loans made under the credit
agreement referred to in the Alcatel Commitment Letter.

        "Alcatel Procurement Agreement" shall mean the Agreement for Services,
Procurement, and Construction, with an effective date of October 21, 1998,
between the Company and Alcatel Indetel.

                                       2
<PAGE>

        "Alcatel Qualified Costs" shall mean (a) all of the Alcatel Costs other
than (i) the cost of the towers to be delivered by Alcatel Indetel under the
Alcatel Procurement Agreement and (ii) the cost of the shelters to be delivered
by Alcatel Indetel under the Alcatel Procurement Agreement. For the avoidance of
doubt, the term "Alcatel Qualified Costs" shall not include interest on any
Indebtedness, whether capitalized or otherwise (other than the interest referred
to in the definition of Alcatel Costs) nor any VAT costs paid in connection with
services rendered, or equipment or other property furnished, under the Alcatel
Procurement Agreement.

        "Applicable Currency Exchange Rate" shall mean, as of any date of
determination, the rate of exchange (net of all fees and commissions) then
applicable to (i) the conversion of Dollars to Pesos or, (ii) the conversion of
Pesos to Dollars, as the context may require. The applicable rate of exchange
shall be the most favorable rate quoted by the Intercreditor Agent at 11:00 a.m.
(Mexico City time) on the applicable date of determination (or, if no such
quotations shall be available on such date, on the date closest to such date of
determination).

        "Applicable Law" shall mean any constitution, statute, law, rule,
regulation, ordinance, judgment, order, decree, Permit, or any published
directive, guideline, requirement or other governmental restriction which has
the force of law, or any determination by, or interpretation of any of the
foregoing by, any judicial authority, binding on a given Person whether in
effect as of the date hereof or as of any date thereafter, including all
applicable Environmental Laws.

        "Applicable Shares" shall have the meaning set forth in Section 4.10.

        "Assignment Agreements" shall mean the Assignment Agreements as referred
to in the Post-Closing Agreement (appropriately completed) pursuant to which (i)
the Sponsors and Holdings have collaterally assigned to the Collateral Agent all
of the rights they have or may have as against the Original Mexican Shareholders
regarding the Equity Commitments, (ii) the Company has collaterally assigned to
the Collateral Agent all of the rights it has or may have as against Holdings
regarding the subscription of additional shares of the Company by Holdings with
the proceeds of the Equity Commitments, (iii) the Company has collaterally
assigned to the Collateral Agent all of its rights under the Pegaso PCS Services
Agreement, the Vendor Agreements, the Operator Agreement, and the
Interconnection Agreements, (iv) Pegaso PCS has collaterally assigned to the
Collateral Agent all of its rights under the Personnel Co. Services Agreement
and the Site Leases.

        "Authorized Officer" shall mean, with respect to any Person, the
Managing Director, the President, the Vice President, the Assistant Vice
President, the Treasurer, the Assistant Treasurer or equivalent officers of such
Person and, with respect to the Company, shall include any officer or
representative holding any of the foregoing positions (or their equivalent)
whose name appears on a certificate of incumbency delivered concurrently with
the execution of this Agreement, as such certificate of incumbency may be
amended from time to time to identify names of the individuals then holding such
offices or the names of such representatives and the capacity in which they are
acting.

        "Borrower" or "Company" shall mean Pegaso Comunicaciones y Sistemas,
S.A. de C.V., a sociedad anonima de capital variable under the laws of Mexico.

                                       3
<PAGE>

        "Borrower Group" shall mean (i) the Company, (ii) Holdings, (iii) Pegaso
PCS, (iv) Personnel Co. (v) the respective Subsidiaries of each of the foregoing
in existence as of the Closing Date, and (vi) any Subsidiary of any of the
foregoing which is formed, established, purchased or acquired after the Closing
Date as described in Section 5.13. Any reference to a "member" or to a "member
of the Borrower Group" shall mean one or more of the Persons described in clause
(i) through (vi) of this definition.

        "Business" shall mean the business of development, operation and use of
the Licenses (and, subject to Articles 4, 5 and 6, other new licenses and/or
concessions issued to any member of the Borrower Group) and pursuant thereto the
installation and operation of terrestrial-based wireless telecommunications
systems in Mexico and, to the extent integral to such wireless terrestrial-based
telecommunications systems, long-distance telecommunications systems in Mexico.

        "Business Day" shall mean (i) for all purposes other than as covered by
clause (ii) below, any day excluding Saturday, Sunday and any day which shall be
in the City of New York, in the Federal District of Mexico or in the City of
London a legal holiday or a day on which banking institutions are authorized by
law or other governmental actions to close and (ii) with respect to any
determination of the Eurodollar Rate, any day which is a Business Day described
in clause (i) and which is also a day for trading by and between banks in U. S.
Dollar deposits in the interbank Eurodollar market.

        "Business Plan" shall mean the Final Business Plan, as updated from time
to time as provided in Section 5.01(d).

        "Capital Expenditures" shall mean, with respect to any Person for any
period, expenditures that are capitalized in accordance with U.S. GAAP and, for
purposes of this definition, expenditures made during such period for equipment
and services financed under sale/leaseback arrangements or under an operating
lease.

        "Capital Lease" as applied to any Person, shall mean any lease of any
property (whether real personal or mixed) by that Person as lessee which, in
conformity with GAAP, is accounted for as a capital lease on the balance sheet
of such Person.

        "Capital Stock" of any Person shall mean any and all shares, interest,
rights to purchase, warrants, options, participations or other equivalents of or
interest in (however designated) the common or preferred equity or equity or
preference share capital of such Person, including, without limitation,
partnership interests.

        "Capitalized Lease Obligations" shall mean all obligations under Capital
Leases of any Person in each case taken at the amount thereof accounted for as
liabilities in accordance with GAAP.

        "Cash Flow Test" shall mean, for any date or any particular calculation
period, that (A) EBITDA for the two consecutive fiscal quarters ending on the
date of the last financial statements delivered in accordance with Section
5.01(a) multiplied by a factor of two (2), is at least equal to (B) the total
regularly scheduled principal and interest on Indebtedness outstanding on the
date of such calculation (other than Indebtedness described in clauses (g), (k)
and (l) of

                                       4
<PAGE>
Section 6.04) to become due during the twelve-month period commencing on the
date of such financial statements; provided, that for purposes of the
calculation in clause (B), the pro forma interest shall be based on the amount
of principal Indebtedness outstanding and the interest rates existing on the
date of determination and it shall be assumed that principal amounts will be
repaid as scheduled.

        "Casualty Event" shall mean an event which causes all or a portion of
the System to be damaged, destroyed or rendered unfit for normal use for any
reason whatsoever.

        "Change of Control" shall mean (i) the failure at any time prior to the
consummation of a Qualified Public Offering of (a) the Original Mexican
Shareholders to own at least 51 % of the voting Capital Stock of Holdings, or
(b) Leap to own, directly or indirectly through a wholly-owned Subsidiary, at
least 20% of the Capital Stock of Holdings, or (ii) at any time after the
consummation of a Qualified Public Offering, any transaction or series of
transactions whereby (A) any Person or two or more Persons acting in concert
shall have acquired beneficial ownership (within the meaning of Rule 13d-3 of
the Securities and Exchange Commission under the Securities Exchange Act of
1934), directly or indirectly, of voting Capital Stock of Holdings representing
35% or more of the combined voting power of all voting stock of Holdings, or (B)
during any period of 18 consecutive months, commencing before or after the date
of this Agreement, individuals who at the beginning of such 18 month period were
directors of Holdings, together with such directors who are approved by
directors who were directors at the beginning of such period, shall cease for
any reason to constitute a majority of board of directors of Holdings; or (iii)
any Person or two or more Persons acting in concert shall have acquired by
contract or otherwise, or shall have entered into a contract or arrangement
that, upon consummation, will result in its or their acquisition of the power to
exercise, directly or indirectly, a controlling influence over the management or
policies of Holdings, or (iv) the failure of Holdings to own all of the Capital
Stock of each of the Company, Pegaso, PCS and Personnel Co. (other than one
share of such Capital Stock which is owned, and shall continue to be owned, by
another member of the Borrower Group). Notwithstanding the foregoing, any such
transaction or series of transactions described in clause (ii) above shall not
constitute a Change of Control if the Original Mexican Shareholders or their
wholly-owned Subsidiaries and Leap continue to own, directly or indirectly, in
the aggregate a greater percentage of the voting Capital Stock of Holdings than
any other Person or two or more Persons acting in concert.

        "Charter Documents" shall mean, with respect to any Person, the articles
of incorporation, by-laws, partnership agreements or such other documents or
instruments which are required to be registered or lodged in the place of
incorporation or organization of such Person and which establish the legal
existence of such Person. With respect to Holdings, the term "Charter Documents"
shall also include the Joint Venture Agreement.

        "Closing Date" shall mean the later to occur of (i) the execution and
delivery of the Alcatel Credit Agreement, or (ii) the execution and delivery of
the Qualcomm Credit Agreement.

        "COFETEL" shall mean Comision Federal de Telecomunicaciones de Mexico.

        "Collateral" shall mean the security for the Senior Indebtedness,
including: (i) all property, assets (including cash, investments and accounts
receivable held from time to time by

                                       5
<PAGE>

the Company) and contract rights (including rights to intellectual property),
whether now owned or hereafter acquired, of the Company which are described
(either specifically or generally) in the Mortgage, (ii) all property, assets
and rights of any member of the Borrower Group which is made subject to a Lien
as required by Section 5.14, (iii) the rights of the Sponsors and Holdings and
the other members of the Borrower Group which are collaterally assigned pursuant
to the Assignment Agreements, (iv) the Capital Stock of the Company, Pegaso PCS
and Personnel Co., which will be pledged to the Secured Parties pursuant to the
PCS/Recursos Pledge Agreement and Sistemas Pledge Agreements or transferred to
the trustee under the Guaranty Trust Agreement, (v) the Capital Stock of any New
Subsidiary, which will be pledged to the Secured Parties pursuant to a pledge
agreement substantially similar to the above-referenced pledge agreements or
transferred to the trustee under the Guaranty Trust Agreement (vi) any and all
security provided by any member of the Borrower Group in connection with any
Additional Senior Indebtedness as provided in Section 2.04(c), and (vii) all
proceeds and revenues of the foregoing.

        "Collateral Agent" shall mean Citibank Mexico, S.A., Grupo Financiero
Citibank, or any successor designated as collateral agent pursuant to Article 2
of the Collateral Agency Agreement.

        "Collateral Agency Agreement" shall mean the Collateral Agency
Agreement, dated as of the date hereof, among the Collateral Agent, the
Intercreditor Agent, the Administrative Agents and the Company.

        "Commitments" shall mean, collectively, (i) the commitment of the Senior
Lenders to make Loans under the Alcatel Credit Agreement, (ii) the commitment of
the Senior Lenders to make Loans under the Qualcomm Credit Agreement, (iii) the
commitment of Alcatel to make Loans under the Alcatel Commitment Letter and (iv)
the commitment of the Senior Lenders to make Loans under any credit or similar
agreement evidencing Additional Senior Indebtedness.

        "Commitment Fees" shall mean (i) in the case of the Alcatel Credit
Agreement, the fees payable by the Company under Section 2.03 thereof, (ii) in
the case of the Qualcomm Credit Agreement, the fees payable by the Company under
Section 2.1 thereof, (iii) in the case of the Alcatel Commitment Letter, the
fees payable by the Company in consideration thereof, and (iv) in the case of
any Additional Senior Indebtedness, those fees specified therein which are
payable to the Senior Lenders thereunder in consideration for the Commitments
made by such Senior Lenders thereunder.

        "Condemnation Event" shall mean any compulsory transfer or taking, or
transfer under threat of compulsory transfer or taking, of all or any part of
the System by any Governmental Authority.

        "Consents" shall mean, collectively, each consent and agreement, as
referred to in the Post-Closing Agreement, from (i) each Vendor, (ii) Personnel
Co., with respect to the assignment of the Personnel Co. Services Agreement, and
Pegaso PCS, with respect to the assignment of the Pegaso PCS Services Agreement,
(iii) Leap Wireless Mexico, with respect to the assignment of the Operator
Agreement, and GTE, with respect to the assignment of the GTE Operator
Agreement, (iv) TelMex and TelNor, with respect to the assignment of their
respective

                                       6
<PAGE>
Interconnection Agreements, and (v) each additional consent and agreement
required to be delivered pursuant to Section 5.04(b)(ii).

        "Consolidated Debt" shall mean, as of any date of determination, the
aggregate amount of all Indebtedness of each member of the Borrower Group on a
combined basis, as shown on the balance sheet, or as would be shown on the
balance sheet, as of the date of determination, determined in accordance with
GAAP, plus (without duplication) any Indebtedness for borrowed money of any
other Person which has been (directly or indirectly) guaranteed by a member of
the Borrower Group or any other Contingent Obligation of a member of the
Borrower Group.

        "Consolidated Paid-In Equity" shall mean, as of any date of
determination, and without duplication, the sum of (a) the aggregate amount of
equity capital which has been contributed in cash, as of such date of
determination, to Holdings by the Existing Shareholders and the New Shareholders
less any Dividends paid to the shareholders of Holdings in accordance with
Section 6.03 prior to such date of calculation, and (b) the aggregate principal
amount of Subordinated Loans then outstanding. The term "Consolidated Paid-In
Equity" shall not include the Equity Commitments until such time as such Equity
Commitments have been honored and converted into cash by Holdings.

        "Contingent Obligations" shall mean as to any Person any obligation of
such Person Guaranteeing or intending to Guarantee any Indebtedness ("primary
obligations") of any other Person (the "primary obligor") in any manner, whether
directly or indirectly, including, without limitation, any obligation of such
Person, whether or not contingent, (a) to purchase any such primary obligation
or any property constituting direct or indirect security therefor, (b) to
advance or supply funds (i) for the purchase or payment of any such primary
obligation or (ii) to maintain working capital or equity capital of the primary
obligor or otherwise to maintain the net worth or solvency of the primary
obligor, (c) to purchase property, securities or services primarily for the
purpose of assuring the owner of any such primary obligation of the ability of
the primary obligor to make payment of such primary obligation or (d) otherwise
to assure, indemnify or hold harmless the owner of such primary obligation
against loss in respect thereof (other than indemnity obligations arising in the
ordinary course of business), provided, however, that the term Contingent
Obligation shall not include endorsements of instruments for deposit or
collection in the ordinary course of business. The amount of any Contingent
Obligation shall be deemed to be an amount equal to the stated or determinable
amount of the primary obligation in respect of which such Contingent Obligation
is made or, if not stated or determinable, the maximum reasonably anticipated
liability in respect thereof (assuming such Person is required to perform
thereunder) as determined in good faith.

        "Covered Pops" shall mean, as of any date of determination, Pops for
those geographical areas as to which (a) the Company has the right under valid,
enforceable and effective Licenses owned by the Company to provide PCS and WLL
services, and (b) the Company has, as of such date of determination, constructed
or intends to construct facilities to provide such services.

        "Credit Agreements" shall mean, collectively, (i) the Alcatel Credit
Agreement, (ii) the Qualcomm Credit Agreement, and (iii) any and all credit or
similar agreements evidencing any Additional Senior Indebtedness.

                                       7
<PAGE>

        "Credit Facilities" shall mean the credit facilities made available to
the Company under the Credit Agreements.

        "Default" shall mean any event, act or condition which, with the giving
of notice, lapse of time, fulfillment of any condition or any combination
thereof, would become an Event of Default.

        "Disbursement" shall mean any disbursement to or for the benefit of the
Company by any Senior Lender of the proceeds of Senior Indebtedness.

        "Dividends" shall have the meaning provided in Section 6.03.

        "Dollars" or "$" shall mean the lawful currency of the United States.

        "EBITDA" shall mean, for any period of calculation, the total earnings
of the Borrower Group before interest, Taxes, depreciation and amortization
during such period of calculation, calculated in accordance with GAAP
eliminating (i) any net income or gain (or net loss), net of any tax effect,
during such period from any extraordinary items as defined according to GAAP,
(ii) any interest income, (iii) gains or losses on the sale of assets (other
than the sale of inventory in the ordinary course of business), (iv) any
extraordinary non-cash items deducted from or included in the calculation of
pre-tax net income (other than items which will require cash payments and for
which an accrual or reserve is, or is required by GAAP to be, made) and (v) the
EBITDA of any Subsidiaries or other assets disposed of or discontinued during
such period.

        "EBITDA Test" shall mean, for any annual or quarterly period of
calculation ending on a specified date, the ratio (i) of the Consolidated Debt
of the Borrower Group outstanding on such date (other than Subordinated Loans)
less cash and Permitted Investments in excess of $5,000,000 held by the Borrower
Group on such date to (ii)(x) the EBITDA for the two consecutive fiscal quarters
last ended on or prior to such date for which financial statements have been
delivered in accordance with Section 5.01(a) multiplied by (y) 2.

        "Eligible Swap Counterparty" shall mean a swap counterparty that (i) has
a long-term Dollar denominated debt rating of at least "A," as determined by
both Standard & Poors, a division of the McGraw-Hill Companies, Inc. and Moody's
Investors Service, Inc., (ii) shall, at the time of execution of the Swap
Agreement, already be a Senior Lender hereunder, (iii) shall be Banamex,
Bancomer, S.A., Citibank Mexico or Banco Santander, or (iv) shall otherwise be
acceptable to Required Voting Parties.

        "Environmental Claims" shall mean, with respect to any Person, any
notice, claim, administrative, regulatory or judicial action, suit, judgment,
demand or other communication (whether written or oral) by any other Person
alleging or asserting such Person's liability for investigatory costs, cleanup
costs, governmental response costs, damages to natural resources or other
property of such Person, personal injuries, fines or penalties arising out of,
based on or resulting from (i) the presence, use, or release into the
environment of any Hazardous Material at any location, whether or not owned by
such Person or (ii) any fact, circumstance, condition or occurrence forming the
basis of any violation, or alleged violation, of any Environmental Law. The term
"Environmental Claim" shall include, (a) any and all claims by Governmental
Authorities for enforcement, cleanup, removal, response, remedial or other
actions or damages

                                       8
<PAGE>

pursuant to any applicable Environmental Law and (b) any and all claims by any
third party seeking damages, contribution, indemnification, cost recovery,
compensation or injunctive relief resulting from Hazardous Materials or arising
from alleged injury or threat of injury to health, safety or the environment.

        "Environmental Law" shall mean any statute, law, rule, regulation,
ordinance, code or policy having the force of law, in each case, applicable to
any member of the Borrower Group or the System now or hereafter in effect and in
each case as amended, and any applicable judicial or administrative
interpretation thereof, including any judicial or administrative order, decree
or judgment, relating to any Environmental Matter.

        "Environmental Matter" shall mean any:

        (a) release emission, entry or introduction of any Hazardous Materials
into the air, including the ambient air;

        (b) discharge, release or entry of any Hazardous Materials into water,
including into any river, watercourse, lake, or pond (whether natural or
artificial or above ground or which joins or flows into any such water outlet
above ground), or reservoir, or the surface of the river bed or of other land
supporting such waters, ground waters, sewer or the sea;

        (c) deposit, disposal, keeping, treatment, importation, exportation,
production, transportation, handling, processing, carrying, manufacture,
collection, sorting or presence of any Hazardous Materials;

        (d) nuisance, noise, defective premises, health and safety and work,
industrial illness, industrial injury due to environmental factors,
environmental health problems (including without limitation, asbestosis or other
illness or injury caused by exposure to asbestos) which is regulated by
Applicable Law;

        (e) conservation, preservation or protection of the natural resources
environment which is regulated by Applicable Law; or

        (f) other matter whatsoever directly affecting the environment or any
part of it which is regulated by Applicable Law.

        "Equity Commitments" shall mean the commitments of the Original Mexican
Shareholders as set forth in Article III of the Joint Venture Agreement and in
resolutions adopted at various shareholder meetings pursuant to which such
Persons have become obligated to contribute specified amounts of equity capital
to Holdings on or prior to the dates specified therein in consideration for
Capital Stock to be issued by Holdings.

        "Event of Default" shall have the meaning set forth in Article 7.

        "Existing Equity" shall mean the equity capital contributed to Holdings
by the Existing Shareholders and the New Shareholders (in consideration for
Capital Stock of Holdings issued to such shareholders) prior to the Closing
Date, in the aggregate amount of $300,000,000.

                                       9
<PAGE>

        "Existing Shareholders" shall have the meaning set forth in the Joint
Venture Agreement.

        "Final Business Plan" shall mean the Business Plan approved by the Board
of Directors of Holdings and delivered to the Administrative Agents and the
Relevant Parties.

        "Financing Agreements" shall mean, collectively, the following
agreements and instruments: (i) the Common Agreement, (ii) the Alcatel Credit
Agreement, (iii) the Qualcomm Credit Agreement, (vi) the Alcatel Commitment
Letter and any credit or similar agreements executed as contemplated therein,
(v) the Notes, (vi) any and all credit or similar agreements evidencing
Additional Senior Indebtedness, (vii) each of the Guaranty Agreements, (viii)
the Security Documents, (ix) the Intercreditor Agreement, and (x) the Collateral
Agency Agreement.

        "Fiscal Year" shall mean the accounting year of the Company or the
Borrower Group, as the case may be, commencing each year on January 1 and ending
on December 31 or such other period agreed between the Company or the Borrower
Group, as the case may be, and the Intercreditor Agent.

        "Frequency Band Concessions" shall mean the Concessions for the Use,
Development and Operation of Radio-electric Spectrum Frequency Bands to Provide
Fixed or Mobile Wireless Access Services issued by the Secretariat of
Communications of Transport in favor of, and held by, the Company by means of
its decision dated May 8, 1998 for the bands of frequencies of the radioelectric
spectrum in order to render wireless access services and more fully described in
the Joint Venture Agreement, including Exhibit A thereto.

        "Further Provisions" shall have the meaning set forth in Section
2.04(b).

        "GAAP" shall mean generally accepted accounting principles in Mexico as
in effect on the date of this Agreement, it being understood and agreed that
determinations in accordance with GAAP (i) for purposes of Articles 5 and 6 of
the Common Agreement, including defined terms as used therein, are subject (to
the extent provided therein) to Section 8.18 and shall include U.S. GAAP
reconciliations, and (ii) for the purposes of any other Section, to the extent
that GAAP is limited, qualified or modified in any such particular Section of
this Agreement, such determinations are subject to such limitations,
qualifications or modifications as are set forth in such Section (but only as
applied to such Section).

        "Good Faith Contest" shall mean, with respect to the payment of Taxes or
any other claims or liabilities by any Person, the satisfaction of each of the
following conditions: (i) the validity or amount thereof is being diligently
contested in good faith by such Person by appropriate proceedings timely
instituted, (ii) during the period of such contest, the enforcement of any
contested item is effectively stayed, and (iii) such contest and any resultant
failure to pay or discharge the claimed or assessed amount is not reasonably
likely to have a Material Adverse Effect.

        "Government of Mexico" shall mean the Government of Mexico, including
any instrumentality, subdivision, authority, agency, ministry or statutory or
legal entity or person (whether autonomous or not) thereof, including any
successors thereof, whether lawful or not.

                                       10
<PAGE>

        "Governmental Authority" shall mean any national, state, county, city,
town, village, municipal or other local government department, commission,
board, bureau, agency, authority or instrumentality of the United States, Mexico
or any other national authority or any political subdivision of any thereof, and
any Person exercising executive, legislative, judicial, regulatory
administrative functions of or pertaining to any of the foregoing entities,
having jurisdiction over the Person or matters in question.

        "GTE" shall mean GTE Data Services Mexico, S.A. de C.V., a sociedad
anonima de capital variable under the laws of Mexico.

        "GTE Operator Agreement" shall mean the "GTE Operator Agreement," as
referred to in the Post-Closing Agreement, between Leap Wireless Mexico and GTE.

        "Guarantors" shall mean (i) Pegaso PCS, (ii) Personnel Co. (iii)
Holdings, and (iv) any other Subsidiary of a member of the Borrower Group
executing a Guaranty Agreement as required by Section 5.13.

        "Guaranty" by any Person shall mean any obligation, contingent or
otherwise, of such Person directly or indirectly guaranteeing in any manner any
Indebtedness of any other Person and, without limiting the generality of the
foregoing, any obligation, direct or indirect, contingent or otherwise, of such
Person (i) to purchase or pay (or advance or supply funds for the purchase or
payment of) such Indebtedness or other obligation (whether arising by virtue of
partnership arrangements, by agreement to keep-well, to purchase assets, goods,
securities or services, to take-or-pay, or to maintain financial statement
conditions or otherwise) or (ii) entered into for the purpose of assuring in any
other manner the obligee of such Indebtedness of the payment thereof or to
protect such obligee against loss in respect thereof (in whole or in part);
provided that the term "Guaranty" shall not include (x) endorsements for
collection or deposit in the ordinary course of business, or (y) indemnity or
hold harmless provisions included in contracts entered into in the ordinary
course of business. The term "Guaranty" or "Guaranteed" used as a verb has a
correlative meaning.

        "Guaranty Agreements" shall mean any agreement by which a Guarantor
Guarantees the obligations of the Company under any of the Credit Agreements,
including, without limitation the Pegaso Guaranty Agreement.

        "Guaranty Trust Agreement" shall mean the Irrevocable Administration and
Guaranty Trust Agreement pursuant to which Holdings will (except to the extent
described in the last sentence of Section 5.23) transfer title to 100% of the
Capital Stock of the Company, Pegaso PCS, and Personnel Co. to the trustee
thereunder for the benefit of the Secured Parties represented by the Collateral
Agent.

        "Hacienda" shall mean the Secretaria de Hacienda y Credito Publico
(Ministry of Finance and Public Credit) of Mexico.

        "Hazardous Materials" shall mean (i) any chemicals, materials or
substances defined as or included in the definition "hazardous substances,"
"hazardous wastes," "hazardous materials," "extremely hazardous wastes,"
"restricted hazardous wastes," "toxic substances," "toxic pollutants,"
"contaminants" or "pollutants," or words of similar import, under any

                                       11
<PAGE>
applicable Environmental Law and (ii) any other chemical, material or substance,
in each case to the extent exposure to the same is prohibited, limited or
regulated by any Environmental Law by reason of its hazardous nature.

        "High Yield Debt" shall have the meaning set forth in Section 6.04(h).

        "Holdings" shall mean Pegaso Telecomunicaciones, S.A. de C.V., a
sociedad anonima de capital variable under the laws of Mexico.

        "Holdings Shares" shall have the meaning set forth in Section 4.10.

        "Indebtedness" shall mean, as to any Person, without duplication, (i)
all indebtedness (including principal, interest, fees and charges) of such
Person for borrowed money, (ii) all obligations of such Person for the deferred
purchase price of property or services, other than trade accounts payable
arising, and accrued expenses incurred, in the ordinary course of business so
long as such trade accounts payable are payable (and have been paid) within 90
days of the date the respective goods are delivered or the respective services
are rendered, (iii) all obligations of such Person evidenced by bonds,
debentures, notes or similar instruments, (iv) the currently available amount of
all letters of credit issued for the account of such Person and all outstanding
reimbursement obligations with respect to such letters of credit, (v) all
liabilities secured by any Lien on any property owned by such Person, (vi) any
Guaranty of Indebtedness by such Person, (vii) all obligations under trade or
bankers' acceptances, (viii) Capitalized Lease Obligations, (ix) without
duplication, any amounts due to trade creditors and accrued expenses, (x) all
net obligations under agreements providing for swaps, ceiling rates, ceiling and
floor rates, contingent participation or other hedging mechanisms with respect
to the payment of interest or the convertibility of currency, (xi) all
obligations under any conditional sale agreement or other title retention
agreement and (xii) all Contingent Obligations of such Person; provided that
Indebtedness shall not include trade credit and accrued expenses, in each case
arising in the ordinary course of business.

        "Indemnified Parties" shall have the meaning set forth in Section
8.01(b).

        "Independent Accountant" shall mean Price Waterhouse Coopers or any
replacement therefor of international recognized standing appointed by the
Borrower Group.

        "Initial Disbursement" shall mean, with respect to any tranche of Senior
Indebtedness, the first Disbursement to occur on or after the Closing Date to or
for the benefit of the Company by one or more of the Senior Lenders of the
proceeds of such tranche of Senior Indebtedness under a Credit Agreement to
which it is a party.

        "Initial Disbursement Date" shall mean the date on which the Initial
Disbursement is made.

        "Insurance Consultant" shall mean AON Risk Services, or any replacement
therefor of international recognized standing appointed by the Intercreditor
Agent after consultation with the Company.

                                       12
<PAGE>

        "Insurance Contracts" shall mean the insurance policies required to be
obtained by the Company or any other member of the Borrower Group pursuant to
any Financing Agreement.

        "Interconnection Agreements" shall mean, collectively, (i) that certain
Interconnection Agreement dated as of November 26, 1998 between the Company and
TelMex, and (ii) that certain Interconnection Agreement dated as of November 26,
1998 between the Company and TelNor.

        "Intercreditor Agent" shall mean Citibank, N.A., or any successor
intercreditor agent designated pursuant to the Intercreditor Agreement.

        "Intercreditor Agreement" shall mean the Intercreditor Agreement, dated
as of the date hereof, among the Intercreditor Agent, the Collateral Agent and
the Administrative Agents.

        "Interest Expense" shall mean, for any period, determined on a
consolidated basis for the Borrower Group, the sum (without duplication) of (a)
interest expense on Indebtedness, including (i) fees, (ii) payments under any
interest rate protection agreements or other hedging agreements, (iii) the
interest portion of any deferred payment obligations, (iv) all fees and charges
owed with respect to letters of credit or performance or other bonds, (v) all
accrued or capitalized interest, (vi) any amortization of debt discount and
(vii) all but the principal component of Capital Lease payments and (b)
dividends declared or paid pursuant to this Agreement.

        "Investment Company Act of 1940" shall mean the U.S. Investment Company
Act of 1940, as amended and the rules and regulations promulgated thereunder.

        "Joint Venture Agreement" shall mean the Joint Venture Agreement entered
into as of July 16, 1998 by and among the Existing Shareholders, Leap Mexico,
Holdings and the New Shareholders, in the form delivered to the Collateral Agent
prior to the Closing Date.

        "Judgment Currency" shall have the meaning set forth in Section 8.11.

        "Judgment Currency Conversion Date" shall have the meaning set forth in
Section 8.11.

        "Leap" shall mean Leap Wireless International, Inc., a corporation under
the laws of Delaware.

        "Leap Mexico" shall mean Leap PCS Mexico, Inc., a corporation under the
laws of California, formerly called Qualcomm PCS Mexico, Inc.

        "Leap Wireless Mexico" shall mean Leap Wireless Mexico, a corporation
under the laws of Mexico.

        "Leases" shall mean all leases of real property in which Pegaso PCS is
the lessee, including any and all leases entered into for the purpose of placing
components of the System.

        "Leverage Ratio" shall mean, as of any date of determination, the ratio
of (i) Consolidated Debt as of such date, less cash and Permitted Investments in
excess of

                                       13
<PAGE>
$5,000,000 held by the Borrower Group on such date, to (ii) Consolidated Paid-In
Equity as of such date.

        "Licenses" shall mean the Frequency Band Concessions and the
Telecommunication Networks Concession and any other licenses acquired by the
Company in connection with the Business.

        "Lien" shall mean any security interest, mortgage, pledge, assignment by
way of security, charge, lease, easement, servitude, deposit arrangement,
encumbrance, lien (statutory or other), preference, priority or other security
agreement of any kind or nature whatsoever including, without limitation, (i)
any conditional sale or other title retention agreement, any financing or
similar statement or notice filed under any recording or notice statute, and any
lease having substantially the same effect as any of the foregoing, and (ii) any
designation (except as contemplated by this Agreement, or any Credit Agreement)
of loss payees or beneficiaries or any similar arrangement under any Insurance
Contract.

        "Loans" shall mean, as the context shall indicate, either one or all of
(i) the Alcatel Loans, (ii) the Qualcomm Loans, or (iii) the Additional Senior
Indebtedness Loans.

        "Loss Proceeds" any and all amounts received by any member of the
Borrower Group (i) under insurance policies maintained by or for the benefit of
such member, or (ii) from any Governmental Authority as a result of a
Condemnation Event.

        "Material Adverse Effect" shall mean an event, circumstance, occurrence
or condition which has caused or could reasonably be expected to cause, as of
any date of determination, a material and adverse effect on (i) the business,
assets, liabilities, operations or financial condition of the Borrower Group
(taken as a whole), (ii) the ability of the Borrower Group (taken as a whole) to
perform its (or their) material obligations under the Financing Agreements
(including its (or their) ability to pay its (or their) Obligations under the
Financing Agreements as such obligations become due, (iii) the validity or
enforceability of any of the Financing Agreements (including the ability of any
Secured Party to enforce any of its remedies under any Financing Agreement), or
(iv) the validity, priority or enforceability of the Secured Parties in the
Collateral.

        "Material Agreement" shall mean (i) any operator agreement or
replacement operator agreement, (ii) any equipment or services procurement
agreement (other than the Qualcomm Procurement Agreement or the Alcatel
Procurement Agreement) pursuant to which the aggregate payments are expected to
exceed $5,000,000, and (iii) any interconnection agreement, the absence of which
would be reasonably likely to reduce the Company's gross revenues by more than
ten percent (10%) of gross revenues projected over the twelve months following
the date upon which the agreement was entered.

        "Mexico" shall mean the United Mexican States.

        "Minimum Assets" shall mean those assets of the Borrower Group which (a)
constitute not less than 95% of the value of all assets of the Borrower Group
(valued on the same basis as such assets are carried on the books of each member
of the Borrower Group on a consolidated basis), and (b) are necessary to carry
on the Business of the Borrower Group in substantially the same manner as is
then being carried out by the Borrower Group, and (c) the legal and beneficial

                                       14
<PAGE>

ownership of which is required to be maintained in the name of the Company as
required by Section 4.10 and is required to be subject to the Mortgage as
provided in Section 4.10. For the avoidance of doubt, the term Minimum Assets
shall include all Licenses, all accounts receivable, and all real estate,
fixtures and personal and intellectual property (including customer lists,
billing and other records of the Borrower Group and computer software.

        "Moody's" shall mean Moody's Investors Service, Inc. or any successor
thereto.

        "Mortgage" shall mean the mortgage, dated as of October 30, 1998 (the
"Original Mortgage"), as amended by Amendment No. 1 dated as of December [___],
1998 ("Amendment No. 1 to the Mortgage"), established under the
Telecommunications Law, pursuant to which the Company has granted a Lien in
favor of the Collateral Agent over all of its properties and assets, including,
without limitation, (i) all components of the System, (ii) the Licenses, (iii)
all accounts receivable of the Company (including all amounts owed from time to
time by subscribers of the System), (iv) all cash and securities owned by the
Company, and (v) the Company's rights in, to and under the Vendor Agreements,
the Operator Agreement, the Pegaso PCS Services Agreement and any other contract
to which the Company is a party.

        "New Shareholders" shall have the meaning set forth in the Joint Venture
Agreement.

        "Non-Vendor Financing" shall mean the financing other than (i) the
financing provided under the Qualcomm Credit Agreement and the Alcatel Credit
Agreement or the Alcatel Commitment Letter, and (ii) other financing provided by
Persons to directly finance the purchase of equipment and services, which when
taken together with similar financing provided by such Person and its Affiliates
exceeds $5,000,000 in amount outstanding.

        "Note" shall mean any promissory note issued by the Company pursuant to
a Credit Agreement.

        "Obligation Currency" shall have the meaning ascribed thereto in Section
8.11.

        "Obligations" shall mean all obligations of members of the Borrower
Group now existing or hereinafter arising, direct or indirect, absolute or
contingent, due or to become due, under any of the Financing Agreements,
including (and without duplication) (i) the principal of and interest on the
Loans and other Senior Indebtedness and all other obligations, advances, debts
and liabilities of members of the Borrower Group, including indemnities,
Commitment Fees and other fees and interest incurred under, arising out of or in
connection with the Credit Agreements or any other Financing Agreement (whether
or not evidenced by any note, bond or other instrument and whether or not for
the payment of money), (ii) any and all sums advanced by the Collateral Agent,
in order to preserve the Collateral or preserve its security interest in the
Collateral and (iii) in the event of any proceeding for the collection or
enforcement of the Obligations, after an Event of Default shall have occurred
and be continuing and unwaived, the expenses of retaking, holding, preparing for
sale or lease, selling or otherwise disposing of or realizing on the Collateral,
or of any exercise by the Collateral Agent of its rights under the Security
Documents, together with reasonable attorneys' fees and court costs.

                                       15
<PAGE>

        "Operator Agreement" shall mean the "Operator Agreement," as referred to
in the Post-Closing Agreement, between the Company and Leap Wireless Mexico,
which agreement shall provide for operation of the System.

        "Original Business Plan" shall mean the business plan, upon which the
management, officers and directors of the Borrower Group are relying to operate
the Business as of the Closing Date, and which shall be delivered to the
Administrative Agents and the Relevant Parties prior to the Closing Date.

        "Original Mexican Shareholders" shall mean Pegaso Comunicaciones y
Servicios, S.A. de C.V., Corporativo del Valle de Mexico, S. A. de C. V. and
Alejandro Burillo Azcarraga.

        "Overnight Eurodollar Rate" shall mean the Eurodollar Rate determined
daily for an Interest Period of one day (or if longer the shortest period for
which an interest rate is quoted).

        "Payment Date" shall mean the date on which any interest or principal
payments are to be made on any Senior Indebtedness pursuant to any Credit
Agreement.

        "PCS/Recursos Pledge Agreement" shall have the meaning set forth in
Section 3.01(h).

        "Pegaso Guaranty Agreement" shall mean the Guaranty Agreement dated as
of December 15, 1998 as executed by each of the Guarantors in favor of the
Collateral Agent for the benefit and on behalf of the Senior Lenders.

        "Pegaso PCS" shall mean Pegaso PCS, S.A. de C.V., a sociedad anonima de
capital variable under the laws of Mexico.

        "Pegaso PCS Services Agreement" shall mean the Services Agreement, dated
as of December 15, 1998 between Pegaso PCS and the Company.

        "Permit" shall have the meaning set forth in Section 4.05.

        "Permitted Indebtedness" shall have the meaning set forth in Section
6.04.

        "Permitted Investments" of any Person shall mean (A) (i) obligations
issued or Guaranteed as to principal and interest by the United States or any
agency thereof whose obligations are backed by the full faith and credit of the
United States, as applicable, and in either case, which mature no later than one
year after the date of acquisition, (ii) certificates of deposit or other
interest-bearing obligations, maturing no later than six months after the date
of acquisition, of any Acceptable Financial Institution, (iii) commercial paper
and other corporate debt securities rated, on the date of purchase, "A-1" or
"P-1" (as applicable) by S&P or Moody's, respectively, or higher for securities
with original maturities of less than one year and "A" or "A2" by S&P and
Moody's, respectively, or higher, for securities with original maturities of one
year or greater (or the equivalent rating) and maturing no later than one year
after the date of acquisition, (iv) repurchase agreements with respect to any of
the foregoing obligations or securities, maturing no later than one year after
the date of acquisition, with any bank of the type referred to in clause (ii)
above, (v) participations in 28-day auction-rate tax-exempt funds rated, on the
date of purchase, "AA" or "Aa2" by S&P or Moody's (as applicable) or higher,
(vi) any

                                       16
<PAGE>

mutual funds comprising investments referred to in clauses (i) through (v)
above, and (vii) any other investments approved by the Collateral Agent;
provided, however, in order for any investment described above, which has been
rated both by S&P and Moody's, to qualify as a Permitted Investment, such
investment must have received at least the minimum rating specified above from
each such rating institution, and (B) investments in any of the following
denominated in Pesos: (i) obligations with a maturity of six months or less
which are direct obligations of Mexico or of entities representing the full
faith and credit of Mexico, or obligations which are unconditionally guaranteed
by Mexico; (ii) obligations with a maturity of six months or less of Mexican
commercial banks of recognized stature, supervised by the Mexican National
Banking and Securities Commission, with a capital and surplus of at least
$250,000,000; provided, that the aggregate investments of the Borrower Group in
Mexican commercial banks other than Banamex or Bancomer, S.A., Citibank Mexico
or Banco Santander will not exceed $5,000,000 at any time; (iii) commercial
paper of Mexican corporations with a maturity of six months or less and rated at
least "A3" by Calificadora de Valores S.A. de C.V.; provided, that the aggregate
amount invested under this clause (iii) shall not exceed $2,500,000 at any time,
and (iv) repurchase agreements with maturities of not more than 90 days related
to any of the obligations described in clause (i), (ii) or (iii) above, and that
are collateralized by such obligations with any Mexican commercial bank which
meets the criteria outlined in clause (ii) above; provided, that the aggregate
amount invested under this clause (iv) shall not exceed $2,500,000 at any time;
provided further that the aggregate amount invested in all investments in this
clause (B) shall not exceed the amount equal to the Company's average monthly
operating expenses for the preceding six months.

        "Permitted Lien" shall have the meaning set forth in Section 6.01.

        "Person" shall mean any individual, corporation, partnership (including,
without limitation, association), limited liability company, joint stock
company, trust, unincorporated organization or government or political
subdivision thereof.

        "Pesos" or "Ps." shall mean the lawful currency of Mexico.

        "Peso Equivalent" shall mean, with respect to any monetary amount in
Pesos, at any time for the determination thereof, the amount of Dollars obtained
or obtainable by converting the amount of Pesos involved in such computation
into Dollars at the Applicable Currency Exchange Rate against delivery of Pesos
at approximately 11:00 A.M. (Mexico City time) on the date of determination
thereof.

        "Personnel Co." shall mean Pegaso Recursos Humanos, S.A. de C.V., a
sociedad anonima de capital variable under the laws of Mexico.

        "Personnel Co. Services Agreement" shall mean the Services Agreement,
dated as of December 15, 1998, between Pegaso PCS and Personnel Co., pursuant to
which Personnel Co. will provide certain services to Pegaso PCS.

        "Pops" shall mean population, as based on specific population estimates
of geographic areas as determined in accordance with those population estimates
provided by COFETEL in connection with the bidding for and award of the
Licenses.

                                       17
<PAGE>

        "Post-Closing Agreement" shall have the meaning set forth in Section
3.01(y).

        "Pro Rata Payment" shall mean a payment to a Senior Lender on any
Payment Date in which (a) interest paid to such Senior Lender on such Payment
Date bears the same proportion to the total interest payments made to all Senior
Lenders on such Payment Date as (i) the total Obligations for interest due to
such Senior Lender on such Payment Date bears to (ii) the total Obligations for
interest due to all Senior Lenders on such Payment Date, (b) principal paid or
prepaid to such Senior Lender on such Payment Date bears the same proportion to
the total principal payments or prepayments made to all Senior Lenders on such
Payment Date as (i) the total Obligations for principal due to such Senior
Lender on such Payment Date bears to (ii) the total Obligations for principal
due to all Senior Lenders on such Payment Date and (c) fees, commissions,
indemnities and all amounts other than interest and principal paid to such
Senior Lender on such Payment Date bears the same proportion to the total fees,
commissions, indemnities and such other amounts paid to all Senior Lenders on
such Payment Date as (i) the total Obligations for fees, commissions,
indemnities and such other amounts due to such Senior Lender on such Payment
Date bears to (ii) the total Obligations for fees, commission, indemnities and
such other amounts due to all Senior Lenders on such Payment Date; provided,
that, unless otherwise provided in this Agreement, (x) all Commitment Fees shall
be paid in full when due; no such fees shall be paid on a Pro Rata Payment basis
or included in any Pro Rata Payment calculation, (y) any prepayment premiums or
break-funding amounts shall be paid in full at the time of prepayment; no such
amounts shall be paid on a Pro Rata Payment basis or included in any Pro Rata
Payment calculation, and (z) any prepayment of a Loan the proceeds of which were
used for the payment of VAT shall not be paid on a Pro Rata Payment basis and
any such Loans shall not be included in any Pro Rata Payment calculation.

        "Qualcomm" shall mean QUALCOMM, Incorporated, a corporation under the
laws of Delaware.

        "Qualcomm Administrative Agent" shall mean ABN AMRO Bank N.V., in its
capacity as Administrative Agent under the Qualcomm Credit Agreement.

        "Qualcomm Costs" shall mean the cost of all equipment and services
delivered to the Company under the Qualcomm Procurement Agreements, plus brokers
fees, export credit insurance premiums, transportation costs and import duties
payable in connection therewith but in no event including any Subscriber Units
(as defined in the Qualcomm Equipment Agreement).

        "Qualcomm Credit Agreement" shall mean the Amended and Restated Credit
Agreement dated as of December 15, 1998, between the Company, the Qualcomm
Lenders referred to therein and the Qualcomm Administrative Agent.

        "Qualcomm Lenders" shall mean the financial institutions and other
entities making Loans and Commitments under the Qualcomm Credit Agreement;
provided, that such term shall refer to such Persons only in their capacities as
lenders under the Qualcomm Credit Agreement and not in their capacities as
equipment suppliers or otherwise.

        "Qualcomm Loans" shall mean all of the loans made under the Qualcomm
Credit Agreement

                                       18
<PAGE>

        "Qualcomm Procurement Agreements" shall mean collectively, (i) the
Equipment Purchase Agreement dated as of June 10, 1998 between the Company (by
assignment or otherwise) and Qualcomm, including the Software Maintenance
Agreement dated as of June 10, 1998 between the Company and Qualcomm, which
agreement was attached as Exhibit D to the Equipment Purchase Agreement and
separately executed, and (ii) the Services Agreement dated as of June 10, 1998
between Qualcomm Wireless Services (Mexico) S.A. de C.V. (by assignment or
otherwise) and the Company (by assignment or otherwise).

        "Qualified Public Offering" shall mean a public offering of common stock
of Holdings, (i) in which the offering is made by Holdings and the proceeds are
to used by Holdings in its Business, (ii) the amount received by Holdings (net
of commissions, discounts and expenses) is not less than $75,000,000, and (iii)
such offering results in the common stock (or depository receipts with respect
thereto) of Holdings being listed on a national securities market in the United
States or in the European Economic Union.

        "Rating Agencies" shall mean, collectively, S&P, Moody's and any other
internationally recognized statistical ratings organization approved by the
Collateral Agent.

        "Relevant Lender" shall have the meaning given to that term in Section
4.22.

        "Relevant Parties" shall mean (i) so long as the Alcatel Guaranty shall
remain in effect, Alcatel, (ii) with respect to loans made in accordance with
the Alcatel Commitment Letter that are subject to credit support from a third
party, such third party, and (iii) if and to the extent that Qualcomm (or any
Subsidiary of Qualcomm) shall guarantee the obligations of the Company under the
Qualcomm Credit Agreement, and for so long as such guaranty shall remain in
effect, Qualcomm or such Subsidiary of Qualcomm.

        "Required Pops" shall mean Covered Pops (a) covering the entire
population of Regions 9, 4 and 6 (as such regions are defined in Exhibit A to
the Joint Venture Agreement), and (b) covering at least 40 million Pops.

        "Required Voting Parties" shall have the meaning given to that term in
the Intercreditor Agreement.

        "Responsible Officer" shall mean, with respect to any member of the
Borrower Group, the President, Chief Executive Officer, Chief Financial Officer,
Chief Operating Officer or General Counsel of such member, or any Person having
a similar function.

        "S&P" shall mean Standard & Poor's Ratings Group, a division of
McGraw-Hill, Inc., or any successor thereto.

        "Secured Parties" shall mean, collectively, (i) the Senior Lenders and
(ii) the Agents.

        "Security Documents" shall mean, collectively, the Mortgage, the
PCS/Recursos Pledge Agreement, the Sistemas Pledge Agreement, the Guaranty Trust
Agreement, the Sponsors Negative Pledge Agreement, the Assignment Agreements,
the Guaranty Agreements, the Consents, any documents or instruments executed in
accordance with Section 2.04(c), Section 5.13(A), Section 5.13(B), Section
5.13(D) and Section 5.14(a) and (b), and any filings

                                       19
<PAGE>

registrations, recordings or similar instruments or documents necessary or
required by the Collateral Agent or any other Secured Party to record, perfect
or otherwise evidence a security interest in the Collateral.

        "Senior Indebtedness" shall mean, collectively, the Obligations under
the Alcatel Loans, the Obligations under the Qualcomm Loans and the Obligations
under any Additional Senior Indebtedness.

        "Senior Lenders" shall mean, collectively, the Alcatel Lenders, the
Qualcomm Lenders and the lenders providing funds under any Additional Senior
Indebtedness; provided, however, that with respect to, and to the extent of, any
Obligations paid by Alcatel under the Alcatel Guaranty, Alcatel shall be deemed
the Senior Lender as described in the Alcatel Guaranty.

        "Services Agreements" shall mean, collectively, the Personnel Co.
Services Agreement and Pegaso PCS Services Agreement.

        "Sistemas Pledge Agreement" shall have the meaning set forth in Section
3.01(h).

        "Site Lease" shall mean a Site Lease Agreement, substantially in the
form of Exhibit A to the Common Agreement; provided, however, that with respect
to any Site Lease Agreement which has not yet been forwarded to a potential
lessor on or before the Amendment Effective Date, such Site Lease Agreement
shall reflect appropriate changes to reflect the ownership of the Company in
assets located at the leased sites.

        "Sponsors" shall mean collectively all of the shareholders of Holdings,
which as of the date hereof are Leap Mexico, the Original Mexican Shareholders
and the New Shareholders.

        "Sponsors Negative Pledge Agreement" shall mean the Negative Pledge
Agreement, dated as of the date hereof, pursuant to which each of the Sponsors
has agreed not to grant a Lien to any third party on the Capital Stock of
Holdings held by such Sponsor.

        "Subordinated Loans" shall mean unsecured loans or other advances made
to Holdings by shareholders of Holdings or any Affiliate of any such
shareholder, or which are made by third parties and are guaranteed directly or
indirectly by such shareholder or Affiliate, which (i) are subordinated in right
of payment to all other Indebtedness of the Borrower Group, (ii) do not require
that any payment of principal or interest be made (whether at scheduled
maturity, by acceleration or otherwise) until the date which is one year
following the latest final maturity date for any Senior Indebtedness then
outstanding, (iii) are not guaranteed by any other member of the Borrower Group
and (iv) are the subject of an instrument executed by such shareholder or
Affiliate or third party and deposited with the Intercreditor Agent pursuant to
which such Person acknowledges that it shall receive no payment or amount or
other consideration (other than as permitted by Section 6.12) in respect of such
Subordinated Loan until all Senior Indebtedness has been paid in full.

        "Subsidiary" shall mean, for any Person, any other Person (whether now
existing or hereafter organized) for which at least a majority of the securities
or other ownership interests having ordinary voting power for the election of
directors or other managers are at the time

                                       20
<PAGE>

owned or controlled by such first Person or one or more Subsidiaries of such
first Person or any combination thereof.

        "System" shall mean the wireless broadband PCS system to be constructed
and rolled out by the Borrower Group pursuant to the Business Plan.

        "System Agreements" shall mean, collectively, the Vendor Agreements, the
Joint Venture Agreement, the Operator Agreement, the GTE Operator Agreement, or,
subject to Section 5.17, any replacement operator agreement, the Services
Agreements, the Site Leases, the Interconnection Agreements and the Licenses.

        "System Costs" shall mean all costs incurred by the Company or other
members of the Borrower Group in connection with the care, custody, control,
construction, development and financing of the System, in all cases as and to
the extent set forth in the Business Plan, including (without duplication or
limitation):

        (i) amounts payable under the Vendor Agreements (other than indemnities,
if any);

        (ii) interest, fees, expenses and withholding taxes payable under the
Credit Facilities, in each case prior to the date on which the System is
completed in accordance with the Business Plan;

        (iii) costs and expenses of legal, engineering, accounting, construction
management and other advisors or consultants incurred in connection with the
System and the Business prior to the date on which the System is completed in
accordance with the Business Plan;

        (iv) fees, commissions and expenses payable to the Secured Parties at
the Initial Disbursement Date for each Facility;

        (v) construction insurance premiums for coverage obtained prior to the
date on which the System is completed in accordance with the Business Plan;

        (vii) the Company's labor costs; and

        (viii) value-added taxes and import duties payable by the Company in
Mexico with respect to equipment and material imported by or on behalf of the
Company;

        "Taxes" shall mean all taxes of every kind (including without
limitation, gross and net income, gross and net receipts, capital gains, excess
profits and minimum taxes, taxes on tax preferences, capital, net worth,
franchise, sales, use value-added, stamp, documentary, excise, property and
other similar taxes), charges and withholdings, levies, imposts, duties, fees
and deductions imposed by any government or political subdivision thereof,
quasi-governmental authority or taxing jurisdiction or authority, together with
all interest, additions to tax, penalties and similar add-ons payable with
respect thereto.

        "Tax Return" means any return, declaration, report, claim for refund or
information return or statement relating to Taxes or any amendment thereto, and
including any schedule or attachment thereto.

                                       21
<PAGE>

        "Telecommunication Law" shall mean the Mexican General Means of
Communications Law.

        "Telecommunication Networks Concession" shall mean the license granted
on June 23, 1998 by the Secretariat of Communications of Transport in favor of,
and held by, the Company to install, operate and exploit a public
telecommunications network.

        "TelMex" shall mean Telefonos de Mexico, S.A. de C.V.

        "TelNor" shall mean Telefonos del Noroeste, S.A. de C.V.

        "Transaction Documents" shall mean, collectively, the System Agreements
and the Financing Agreements.

        "Transfer" shall mean any sale, assignment or other transfer, regardless
of whether carried out directly or indirectly.

        "Trigger Date" shall mean the date on which the Company delivers to the
Administrative Agents and the Relevant Parties financial statements for the
Borrower Group for the fiscal quarter ended December 31, 2003 in accordance with
Section 5.01(a).

        "United States" or "U.S." shall mean the United States of America.

        "U.S. GAAP" means generally accepted accounting principles in the United
States.

        "VAT" shall mean Mexican impuesto al valor agregado (value-added taxes).

        "Vendor" shall mean each Person (other than the Company) which is a
party to a Vendor Agreement.

        "Vendor Agreements" shall mean collectively (i) the Alcatel Procurement
Agreement; and (ii) the Qualcomm Procurement Agreements.

        "Voting Party" shall have the meaning set forth in the Intercreditor
Agreement.

        "Wholly-owned" when used in respect of any Subsidiary, shall mean that
the parent company of such Subsidiary owns all of the Capital Stock of such
Subsidiary, other than any minimal shares which are required by Mexican (or
other) Applicable Law to be owned by another Person.

        "Wireless Services" shall mean PCS (Personal Communications Services)
and/or WLL (wireless local loop) services.

        "Written" or "in writing" shall mean any form of written communication
or a communication by means of telex, facsimile transmission, telegraph or
cable.

                                       22

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