<PAGE>   1

                                                                   EXHIBIT 10.22


                                                                  EXECUTION COPY



                                  VELOCOM INC.


                     FOLLOW-ON SERIES B/B-1 PREFERRED STOCK
                               PURCHASE AGREEMENT


<PAGE>   2


                                TABLE OF CONTENTS

<TABLE>

<S>                                                                  <C>
1. Agreement To Sell And Purchase.....................................1

    1.1 Authorization of Shares ......................................1

    1.2 Sale and Purchase ............................................1

2. Closing, Delivery And Payment......................................1

    2.1 Initial Closing ..............................................1

    2.2 Subsequent Closings ..........................................2

    2.3 Certificates; Payment ........................................2

    2.4 Absolute Commitment ..........................................2

3. Consequences Upon Default..........................................3

    3.1 Specific Performance .........................................3

    3.2 Board Representative(s) ......................................3

    3.3 Irrevocable Proxy ............................................3

    3.4 Premium ......................................................4

    3.5 Liquidated Damages ...........................................4

    3.6 Conversion Rights ............................................5

4. Representations And Warranties Of The Company......................5

    4.1 Organization and Standing ....................................5

    4.2 Capitalization of the Company ................................5

    4.3 Authority ....................................................6

    4.4 Consents and Approvals .......................................7

    4.5 Compliance with Laws .........................................7

    4.6 Trademarks, Patents, Trade Names, etc. .......................8

    4.7 Actions Pending ..............................................8

    4.8 Contracts ....................................................8
</TABLE>

                                        i

<PAGE>   3
<TABLE>
<S>                                                                         <C>
    4.9 Investments in United States Real Property Interests ................9

    4.10 Unrelated Business Taxable Income ..................................9

    4.11 Not a Qualified Small Business .....................................9

    4.12 Subsidiaries .......................................................9

    4.13 Capitalization of the Company's Subsidiaries .......................9

    4.14 Share Ownership ...................................................10

    4.15 Financial Statements ..............................................10

    4.16 Material Changes ..................................................10

    4.17 Title .............................................................11

    4.18 Licenses ..........................................................11

    4.19 Insurance .........................................................11

    4.20 Liabilities .......................................................11

    4.21 Taxes .............................................................12

    4.22 Collective Bargaining Agreements, Employment Agreements and
         Employee Relations ................................................12

    4.23 Employee Benefits .................................................12

    4.24 Recordkeeping Compliance ..........................................13

    4.25 Condition of the Companies; Operation of Business in the Ordinary
         Course ............................................................13

    4.26 Y2K Compliance ....................................................13

    4.27 Broker's Fees .....................................................14

    4.28 Foreign Corrupt Practices Act .....................................14

    4.29 Offering ..........................................................14

    4.30 Spectrum Allocation ...............................................14

5. Representations And Warranties Of The Purchasers.........................14

    5.1 Requisite Power and Authority ......................................15
</TABLE>

                                       ii

<PAGE>   4


<TABLE>

<S>                                                                        <C>
    5.2 Investment Representations .........................................15

    5.3 Broker's Fees ......................................................16

6. Conditions Precedent To Purchasers' Obligations..........................16

    6.1 Conditions to Initial Closing ......................................16

    6.2 Conditions to Subsequent Closings ..................................17

7. Vesper Board Observation Rights..........................................17

8. Use of Proceeds..........................................................17

9. Miscellaneous............................................................17

    9.1 Governing Law ......................................................17

    9.2 Survival ...........................................................17

    9.3 Successors and Assigns .............................................18

    9.4 Entire Agreement; Amendment and Waiver .............................18

    9.5 Specific Enforcement ...............................................18

    9.6 Severability .......................................................18

    9.7 Notices ............................................................18

    9.8 Counterparts .......................................................19

    9.9 Future Financings; Purchaser Obligations ...........................19

    9.10 Expense Reimbursement .............................................19

    9.11 Regulatory Compliance Matters .....................................19

    9.12 Understanding Among the Purchasers ................................19

    9.13 Acknowledgment Regarding Kirkland & Ellis .........................20

10. Certain Definitions.....................................................20

EXHIBITS:

Exhibit A     Schedule of Purchasers                                       A-1
Exhibit B     Form of Second Amended and Restated Certificate of
              Incorporation                                                B-1
Exhibit C     Capitalization Chart                                         C-1
Exhibit D     Form of Third Amended and Restated Investors Agreement       D-1
Exhibit E     Form of Legal Opinion                                        E-1
</TABLE>

                                       iii

<PAGE>   5


                                  VELOCOM INC.

                        FOLLOW-ON SERIES B/B-1 PREFERRED
                            STOCK PURCHASE AGREEMENT

         This Follow-On Series B/B-1 Preferred Stock Purchase Agreement (this
"Agreement") is entered into as of December 20, 1999, by and among VELOCOM INC.,
a Delaware corporation (the "Company"), and each of those persons and entities,
severally and not jointly, whose names are set forth on the Schedule of
Purchasers attached hereto as Exhibit A (collectively the "Purchasers" and
individually a "Purchaser").

         NOW, THEREFORE, in consideration of the mutual promises hereinafter set
forth, the parties hereto agree as follows:

1.       AGREEMENT TO SELL AND PURCHASE

         1.1 Authorization of Shares. On or prior to the Initial Closing Date
(as defined in Section 2 below), the Company shall have authorized the sale and
issuance to the Purchasers of the shares (the "Shares") of its Series B
Preferred Stock and Series B-1 Preferred Stock (together, the "Series B/B-1
Preferred Stock") described in Section 2 below having the rights, preferences,
privileges and restrictions set forth in the Second Amended and Restated
Certificate of Incorporation, a copy of which is attached hereto as Exhibit B
(the "Certificate of Incorporation").

         1.2 Sale and Purchase. Subject to the terms and conditions hereof, the
Company hereby agrees to issue and sell to each Purchaser and each Purchaser
severally and not jointly agrees to purchase from the Company, the aggregate
number of Shares set forth opposite such Purchaser's name on Exhibit A (the
"Purchaser Share Limit"), at a purchase price of six dollars (US$6.00) per
Share, at the Initial Closing and the Subsequent Closings (as defined in Section
2 below) as more fully set forth on Exhibit A.

2.       CLOSING, DELIVERY AND PAYMENT

         2.1 Initial Closing. Subject to satisfaction of the conditions to
closing set forth in Section 6.1, the initial closing of the sale and purchase
of the Shares under this Agreement (the "Initial Closing") shall take place at
9:00 a.m. on January 7, 2000, at the offices of Holland & Hart LLP, 555
Seventeenth Street, Suite 3200, Denver, CO 80202 or at such other time or place
as the Company and the Purchasers may mutually agree (such date is hereinafter
referred to as the "Initial Closing Date"). The total number of Shares to be
purchased by all Purchasers in the Initial Closing shall be eight million seven
hundred twenty three thousand four hundred five (8,723,405), as set forth on
Exhibit A.


                                       1
<PAGE>   6


         2.2 Subsequent Closings. Subject to satisfaction of the conditions to
closing set forth in Section 6.2, two subsequent closings of the sale and
purchase of the Shares under this Agreement (together, the "Subsequent
Closings") shall take place, the first at 9:00 a.m. on June 30, 2000 (the
"Second Closing") and the second at 9:00 a.m. on September 29, 2000 (the "Final
Closing"), at the offices of Holland & Hart LLP, 555 Seventeenth Street, Suite
3200, Denver, CO 80202, or at such other time or place as the Company and the
Purchasers may mutually agree (such dates are hereinafter referred to together
as the "Subsequent Closing Dates"). Notwithstanding the foregoing, the Company's
Board of Directors (the "Board of Directors"), in its sole discretion, may
accelerate either of the Subsequent Closing Dates at any time upon at least 5
business days advance written notice to the Purchasers, although the Company
will use commercially reasonable efforts to attempt to provide at least 10
business days advance written notice of any such accelerated Subsequent Closing
Date. The total number of Shares to be purchased by all Purchasers in the Second
Closing is four million three hundred sixty one thousand seven hundred four
(4,361,704) and the total number of Shares to be purchased in the Final Closing
is four million three hundred sixty one thousand seven hundred four (4,361,704),
as set forth on Exhibit A. Each Purchaser shall have the right to purchase the
Shares which could have been purchased in any Subsequent Closing at the price
set forth in Section 1.2 above at any time in its sole discretion prior to a
liquidity event or for any other reason.

         2.3 Certificates; Payment. Each of the Initial Closing, the Second
Closing and the Final Closing is referred to herein individually as a "Closing,"
and collectively they are referred to herein as the "Closings." Each of the
Initial Closing Date and the Subsequent Closing Dates is referred to herein
individually as a "Closing Date," and collectively they are referred to herein
as the "Closing Dates." On each Closing Date, the Company shall deliver to each
Purchaser a certificate (or certificates in denominations reasonably designated
by Purchaser) representing all of the Shares purchased by such Purchaser at such
Closing.

         2.4 Absolute Commitment. Each Purchaser acknowledges and agrees that,
if the Initial Closing occurs, its obligation to purchase a number of Shares in
all Closings equal to its Purchaser Share Limit constitutes an absolute,
irrevocable and unconditional obligation, and shall not be subject to
counterclaim, set-off, deduction or defense, or to abatement, suspension,
deferment, diminution or reduction for any reason whatsoever (other than the
failure to satisfy the closing conditions set forth in Section 6 below). By way
of amplification, and not in limitation of the foregoing, each Purchaser further
acknowledges and agrees to fulfill its obligations regardless of any claims it
may have against the Company, any other Purchaser or Person (whether or not
related to the transactions contemplated hereby) and regardless of the existence
or non-existence of any facts or circumstances (whether or not such facts and
circumstances existed on the date hereof or any of the Closing Dates or were
then known by it).


                                       2
<PAGE>   7


3.       CONSEQUENCES UPON DEFAULT.

         If any Purchaser fails to pay to the Company on any Subsequent Closing
Date the full purchase price for the Shares to be purchased by such Purchaser in
such Closing, as set forth in Exhibit A (a "Default", and the amount of such
defaulted purchase price, the "Defaulted Commitment"), then such Purchaser shall
be subject to all of the consequences set forth in this Article 3 (such
Purchaser is referred to as a "Defaulting Purchaser").

         3.1 Specific Performance. The Company shall be entitled to specific
performance of each Purchaser's obligation to purchase the Shares in each
Closing set forth opposite such Purchaser's name on Exhibit A and the Company's
right to receive the full amount of the purchase price for those Shares. Each
Purchaser acknowledges that money damages would be an inadequate remedy for any
Default or other breach of its obligations under this Agreement and consents to
an action for specific performance or other injunctive relief in the event of
any Default or other breach of this Agreement by such Purchaser.

         3.2 Board Representative(s). Immediately upon the occurrence of a
Default, the representative(s) appointed by the Defaulting Purchaser to the
Board of Directors, if any, (the "Board Representative(s)") in accordance with
Section 5.1 of the Investor's Agreement, shall resign effective immediately and
the Defaulting Purchaser shall forfeit its right to designate any
representative(s) to fill such vacancy(ies) or to appoint any other
representative(s) to the Board of Directors. If the Default continues uncured
for a period exceeding 10 days after the Default, the Defaulting Purchaser shall
also lose its right to have an observer present at any meeting of the Board of
Directors, as provided in Section 5.1(a)(vi) of the Investors Agreement or at
any meeting of the board of directors or other governing body of any subsidiary
of the Company. If the Defaulting Purchaser cures its Default within the 10-day
period following such Default by making payment to the Company of (i) the
Defaulted Commitment, (ii) the Premium (as that term is defined below) and (iii)
the Liquidated Damages (as that term is defined below) (such actions
collectively are referred to herein as a "Cure" for a Default), the Defaulting
Purchaser shall regain its right to designate such Board Representative(s) and
to have observers present at such meetings of the Board of Directors of the
Company and its subsidiaries.

         3.3 Irrevocable Proxy.

                  (a) Each Purchaser hereby irrevocably appoints the Company as
its attorney-in-fact and proxy of such Purchaser, with full power of
substitution, to be immediately effective without any action on the part of such
Purchaser or the holder thereof on each occurrence and during the continuance of
a Default (unless the Default is Cured):


                                       3
<PAGE>   8


                           (i) to attend any meeting (whether annual or special)
of the Company at which the vote of the holders of the Series B/B-1 Preferred
Stock is permitted or required, including any adjournment or postponement of any
such meetings;

                           (ii) to vote the Shares owned by such Purchaser on
any matter permitted or required to be voted upon by the holders of Series B/B-1
Preferred Stock under the Certificate of Incorporation or the Investors
Agreement, including the right to designate or remove any representative to the
Board of Directors; and

                           (iii) to execute and deliver one or more consents in
writing pursuant to any action by the Company's stockholders proposed to be
taken by unanimous written consent under any applicable law in lieu of voting at
any such meeting or adjournment thereof.

                  (b) Each Purchaser affirms that this proxy and power of
attorney is issued in order to facilitate the transactions contemplated by this
Agreement and the Investors Agreement and as such is coupled with an interest
and is irrevocable. This proxy will terminate upon each Purchaser's satisfying
in full its obligations hereunder.

                  (c) Each Purchaser agrees that prior to the full funding of
the purchase price of the Shares comprising such Purchaser's Purchaser Share
Limit, it will not sell, transfer, or otherwise dispose of or cause to be
disposed of any Shares owned by such Purchaser unless such Purchaser or
transferee agrees in writing prior to the sale, transfer or other disposition to
be bound by and subject to the provisions contained in this Section 3.3.

                  (d) All authority conferred or agreed to be conferred in this
Section 3.3 shall survive the death, dissolution, liquidation or incapacity of
each Purchaser and any obligation of such Purchaser shall be binding upon the
heirs, personal representatives, successors and assigns of such Purchaser. No
Purchaser will give any subsequent proxy with respect to such Shares owned by
the Purchaser that purports to grant authority within the scope of the authority
conferred in this Section 3.3.

         3.4 Premium. In the event a Defaulting Purchaser elects to Cure its
Default, such Defaulting Purchaser shall pay to the Company within the 10-day
Cure period a premium equal to 25% of the Defaulted Commitment due in respect of
such Shares (the "Premium"). This amount shall be in addition to the Defaulted
Commitment and the Liquidated Damages provided for below.

         3.5 Liquidated Damages. Immediately upon the occurrence of a Default,
the Defaulting Purchaser shall pay to the Company a sum equal to 50% of the
Defaulted Commitment as liquidated damages (the "Liquidated Damages"). Each
Purchaser agrees that this amount is reasonable in light of the fact that
damages resulting from a Default would be difficult to determine because the
Company would be required to invest


                                       4
<PAGE>   9


significant time and resources in order to find another purchaser or source of
funding to replace the Defaulted Commitment by such Defaulting Purchaser. Each
Purchaser also acknowledges that this amount is not a penalty.

         3.6 Conversion Rights. If a Defaulting Purchaser does not Cure such
Default within the 10-day cure period, the conversion price for the Shares owned
by such Defaulting Purchaser shall be adjusted as provided in the Certificate of
Incorporation.

4.       REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         Except for the representations and warranties of the Company set forth
in Sections 4.12, 4.13 and 4.14, all representations and warranties made by the
Company pursuant to this Section 4 regarding the Brazilian Companies and the
Acquired Subsidiaries shall be made to the knowledge of the Company. The Company
hereby represents and warrants to each Purchaser as of the date hereof, as
follows:

         4.1 Organization and Standing. Each of the Companies is duly organized,
validly existing and in good standing under the laws of its jurisdiction of
incorporation. Each of the Companies has all requisite corporate power and
authority to own and operate its properties and assets and to carry on its
businesses as presently conducted and as presently proposed to be conducted.
Each of the Companies is qualified to do business in each jurisdiction where the
failure to be so qualified would result in a material adverse effect on the
business, operations, assets, prospects or condition (financial or otherwise) of
any of the Companies (a "Material Adverse Effect"). The copies of the Company's
and each Subsidiaries' charter documents and by-laws or other constituent
documents which have been furnished to the Purchasers' special counsel reflect
all amendments made thereto at any time prior to the date of this Agreement and
are correct and complete.

         4.2 Capitalization of the Company. The authorized capital stock of the
Company, immediately prior to the Initial Closing Date, shall consist of (a) one
hundred eight million six hundred thirty four thousand four hundred twenty one
(108,634,421) shares of Common Stock, of which (i) one hundred six million six
hundred sixty six thousand six hundred sixty seven (106,666,667) will be
designated as Voting Common Stock, eleven million two hundred eighty three
thousand eight hundred twenty six (11,283,826) of which will be issued and
outstanding immediately prior to the Initial Closing Date, and (ii) one million
nine hundred sixty seven thousand seven hundred fifty four (1,967,754) will be
designated as Non-Voting Common Stock, none of which will be issued and
outstanding immediately prior to the Initial Closing Date, and (b) seventy eight
million six hundred thirty four thousand four hundred twenty one (78,634,421)
shares of Preferred Stock, of which (i) thirty-one million (31,000,000) will be
designated as Series A Preferred Stock, thirty million seven hundred six
thousand three hundred thirty-three (30,706,333) of which will be issued and
outstanding immediately prior to the Initial Closing Date, (ii) forty one
million six hundred sixty six


                                       5
<PAGE>   10


thousand six hundred sixty seven (41,666,667) will be designated as Series B
Preferred Stock, of which seven million six hundred fifty-seven thousand
seventy-three (7,657,073) will be issued and outstanding immediately prior to
the Initial Closing Date, and an additional thirty four million nine thousand
five hundred ninety three (34,009,593) shares of which will have been committed
to be sold by the Company immediately prior to the Initial Closing Date and
(iii) one million nine hundred sixty seven thousand seven hundred fifty four
(1,967,754) will be designated as Series B-1 Preferred Stock, of which no shares
will be issued and outstanding immediately prior to the Initial Closing Date,
but all of which will have been committed to be sold by the Company immediately
prior to the Initial Closing Date. All issued and outstanding shares of the
Company's Common Stock, Series A Preferred Stock and Series B/B-1 Preferred
Stock have been duly authorized, validly issued and are fully paid and
non-assessable. Except for the three million seven hundred ninety-eight thousand
five hundred forty-four (3,798,544) options outstanding immediately prior to the
Initial Closing Date, except for the conversion privileges of the Series A
Preferred Stock, Series B Preferred Stock and Series B-1 Preferred Stock, except
for the shares of Series B Preferred Stock to be purchased pursuant to the
Series B Preferred Stock Purchase Agreement dated as of December 6, 1999 among
the Company and the Purchasers listed on the Schedule of Purchasers attached
thereto, as amended by Amendment No. 1 thereto, dated as of December 31, 1999,
and except as disclosed in this Agreement or in the exhibits or schedules
attached hereto, there will be no options, warrants or other rights to purchase
from the Company any of its equity securities that are outstanding immediately
prior to the Initial Closing Date. The Company will not have in place any stock
appreciation rights or phantom stock plans immediately prior to the Initial
Closing Date. A chart showing the accurate and complete capitalization of the
Company immediately prior to and immediately after the Initial Closing Date is
attached hereto as Exhibit C.

         4.3 Authority.

                  (a) The Company has full power, right and authority to execute
the Transaction Documents and to perform all of its obligations hereunder and
thereunder. The execution and delivery of the Transaction Documents by the
Company has been, and consummation by the Company of the transactions
contemplated thereby has been, duly authorized by all necessary action of the
Company. The Transaction Documents have been duly and validly executed and
delivered by the Company and constitute the legal, valid, binding and
enforceable obligation of the Company subject to applicable bankruptcy,
insolvency, fraudulent transfer, reorganization, moratorium and other similar
Laws affecting creditors' rights generally and subject, as to enforceability, to
general principles of equity (regardless of whether enforcement is sought in a
proceeding at law or in equity). The execution, delivery and performance by the
Company of the Transaction Documents and the consummation of the transactions
contemplated thereby will not (i) conflict with or violate any Contracts or
Permits to which the Companies are a party or bound and, in particular, will not
cause prepayment


                                       6
<PAGE>   11


of any banking or other indebtedness of any of the Companies and will not
otherwise give any other Person the right to accelerate, renegotiate or
terminate or receive any payment and will not constitute a default, event of
default or an event which with the passage of time or lack of notice, or both,
would constitute a default or event of default under such Contract, (ii)
conflict with or violate any provision of any applicable Legal Requirement to
which any Company is subject, (iii) conflict with or violate any Judgment
applicable to any of the Companies, or (iv) conflict with, or result in a breach
or default under, any term or condition of the constituent documents of the
Companies.

                  (b) When issued in compliance with the provisions of this
Agreement and paid for by each Purchaser, the Shares and, when issued upon
conversion of the Shares, the Common Stock so issuable, will be validly issued,
fully paid and nonassessable and will not have been issued in violation of any
preemptive rights. The Shares will have the benefit of the terms and provisions
of the Certificate of Incorporation.

         4.4 Consents and Approvals. Except as set forth on Schedule 4.4, no
consent, license, approval, waiver, expiration of waiting period or
authorization of, or registration or declaration with, any municipal, local,
state, federal, domestic or foreign governmental authority, agency, bureau or
commission, or any other Person (a "Consent"), is required to be obtained or
made by the Companies, in connection with its execution, delivery, performance
of the Transaction Documents and enforceability of its respective obligations
under the Transaction Documents and the transactions contemplated thereby.

         4.5 Compliance with Laws.

                  (a) Except as set forth on Schedule 4.5(a), each of the
Companies has been and is currently in compliance in all material respects with
all (i) Environmental Laws, (ii) applicable telecommunications Laws, and (iii)
material Legal Requirements. None of the Companies has received (A) any
citations, notices of violations, complaints, consent orders (or amendments to
or modifications of such orders), compliance schedules or other similar
enforcement orders, or (B) any written notice in any form, including inspection
reports, from any governmental entity or any other Person which in any case
would indicate that there was not then or is not currently such compliance with
all such Legal Requirements.

                  (b) Schedule 4.5(b) sets forth an accurate and complete list
of all material Permits which are used or held by each of the Companies in
connection with the operation of its business. The Company represents that (i)
all material Permits of each of the Companies are in full force and effect, (ii)
any applications for renewal of any material Permit due prior to the Closing
have been, or will be, timely filed prior to the Closing, (iii) no proceeding or
other legal action to modify, suspend, revoke, withdraw, terminate or otherwise
limit any such material Permit is pending or, to the knowledge of the Company,
threatened, and (iv) each of the Companies has made all


                                       7
<PAGE>   12


payments required to be made under all material Permits, including, without
limitation, in respect of any Licenses.

         4.6 Trademarks, Patents, Trade Names, etc.

                  (a) Schedule 4.6 contains a listing of all patents, know-how,
trademarks, trade names, service marks, service names, copyrights and other
intellectual or proprietary property used in the conduct of each of the
Companies' businesses (the "Patent and Trademark Rights"). Except as set forth
on Schedule 4.6, none of the Companies has received any notice from any other
Person challenging the right of any of them to use any such Patent and Trademark
Rights owned or used by or licensed to each of the Companies. The Company has no
knowledge that any Patent and Trademark Right is being infringed upon or
appropriated by others, and none is subject to any outstanding Judgment
affecting the scope of the free and unrestricted use by any of the Companies or
is used contrary to the provisions of any licensing or other agreement. The
Company has no knowledge that there are any geographic restrictions on the use
by any of the Companies of the Patent and Trademark Rights.

                  (b) The Companies have not entered into any agreement or
arrangement for the provision or acquisition of any Patent and Trademark Rights.

         4.7 Actions Pending. There is no suit, action, claim, arbitration or
similar proceeding or investigation pending or, to the Company's knowledge,
threatened against any of the Companies (i) which, if adversely resolved, would
be reasonably likely to have a Material Adverse Effect, (ii) with respect to
which there is a reasonable likelihood of a determination which would prevent
the Company from consummating the transactions contemplated by the Transaction
Documents, or (iii) which seeks to enjoin or obtain damages in respect of the
consummation of the transactions contemplated by the Transaction Documents. None
of the Companies is a party to or is bound by any Judgment of any governmental
authority, arbitrator or any other Person. None of the Companies has
compromised, settled or lost any arbitration or judicial or administrative
proceeding.

         4.8 Contracts.

                  (a) Schedule 4.8 contains an accurate and complete list of all
Contracts to which any of the Companies is a party or by which any of such
Companies' assets or properties are bound or affected and which (i) involve the
obligation (including contingent obligations) to pay by or to any of such
Companies amounts in excess of US$100,000 in the aggregate in respect of the
Company and the Subsidiaries and amounts in excess of US$1,000,000 in the
aggregate in respect of the Brazilian Companies, (ii) are Contracts with any
stockholder or member or any Affiliate of any stockholder or member, (iii) are
Contracts with governmental entities, or (iv) were not entered into in the
ordinary course of business of any of such Companies.


                                       8
<PAGE>   13


                  (b) All Contracts are valid, binding and enforceable by each
of the respective Companies in accordance with their respective terms and none
of such Companies is in default in any material respect under any of such
Contracts nor, to the knowledge of the Company, is there any basis for any valid
claim of default or violation under any Contract. To the knowledge of the
Company, no other party to any of such Contracts is in default in any material
respect thereunder nor does there exist any event or condition, which upon the
giving of notice or the lapse of time or both, would (i) constitute a default in
any material respect or event of default thereunder or (ii) entitle any other
party thereto to terminate such Contract.

                  (c) None of the Companies is a party to any Contract
containing an undertaking on its part not to compete in any business, industry
or geographical area except as set forth in the Licenses.

         4.9 Investments in United States Real Property Interests. The Company's
capital stock does not, and the Company shall use its reasonable commercial
efforts to ensure that its capital stock will not, constitute a United States
real property interest as that term is defined in Section 897(c)(1)(A)(ii) of
the Internal Revenue Code of 1986, as amended (the "Code"). The preceding
representation is based on a determination by the Company that the Company is
not and has not been a United States real property holding corporation (as that
term is defined in Section 897(c)(2) of the Code) ("USRPHC") during the five (5)
year period preceding the date of this Agreement. From time to time, upon the
request of any Purchaser, the Company shall make a determination as to its
status as a USRPHC. If at any time in the future the Company should become a
United States real property holding corporation, the Company shall, as promptly
as possible, notify each Purchaser of such change in status.

         4.10 Unrelated Business Taxable Income. The Company shall use its
reasonable commercial efforts to ensure that any gross income derived by a
Purchaser from the Company shall be in the form of dividends, interest, capital
gains and losses from the disposition of property, and rents and royalties, but
only such rents and royalties as are excluded pursuant to Code Sections
512(b)(2) and 512(b)(3), respectively, in calculating unrelated business taxable
income and only such dividends, interest, capital gains and losses, and rents
and royalties that are not included under Section 512(b)(4) of the Code in
calculating unrelated business taxable income.

         4.11 Not a Qualified Small Business. The Company does not qualify as a
"Qualified Small Business" as defined in Section 1202(d) of the Code.

         4.12 Subsidiaries. Schedule 4.12 sets forth the current ownership
structure of the Company and its Subsidiaries.

         4.13 Capitalization of the Company's Subsidiaries. Schedule 4.13 sets
forth the outstanding capital of each of the Companies (other than the Company),
the number of their authorized and issued shares or equity interests and their
nominal value. All of the


                                       9
<PAGE>   14


shares or equity interests of the Companies (other than the Company) have been
duly authorized, validly issued and are fully paid and non-assessable. The
Companies (other than the Company) have no other shares or equity interests of
any kind authorized or outstanding, no outstanding securities convertible into
or exchangeable for or carrying the right to acquire any equity security of any
of the Companies (other than the Company) and no outstanding options, warrants
or other agreements or commitments under which any of the Companies (other than
the Company) are obligated to issue any additional shares or equity interests.
None of the shares of the Companies (other than the Company) is subject to any
Encumbrances except as set forth on Schedule 4.13.

         4.14 Share Ownership.

                  (a) Schedule 4.14(a) sets forth a true and correct list of the
stockholders of the Company, the number of shares owned by the stockholders of
the Company and the percentage ownership represented by each such stockholding.

                  (b) Schedule 4.14(b) sets forth a true and complete list of
(i) all stockholders agreements, limited liability company agreements or other
agreements in respect of or relating to the equity interests in the Companies to
which the Company or any of its Subsidiaries is a party, and (ii) all Contracts
relating to the purchase, sale, transfer or other disposition of any securities
or equity interests of any of the Companies to which the Company or any of its
Subsidiaries is a party.

         4.15 Financial Statements. The Company has delivered to each Purchaser
unaudited balance sheets and the related unaudited income statement and retained
earnings statements for the periods set forth therein of (x) the Company at
December 31, 1998 and September 30, 1999, (y) MegaTel do Brasil S.A., Telelatina
Management Company, Smartel S.A., Formus S.A. and Telelatina S.A. at June 30,
1999 and (z) Vesper S.A. at May 31, 1999 (the items referred to in (x), (y) and
(z) are referred to herein collectively as the "Financial Statements"). Except
as may be otherwise noted therein, the Financial Statements present fairly, in
all material respects in accordance with generally accepted accounting
principles then in effect, the financial position of each of the Companies as of
the date set forth therein and the results of operations of each of such
Companies for the periods set forth therein, except that the Financial
Statements (i) do not have all footnotes required by generally accepted
accounting principles and (ii) are subject to normal, year-end adjustments.

         4.16 Material Changes. Except as set forth in the Financial Statements,
since the date of the latest respective Financial Statements (i) there have been
no changes in the business, operations, assets or liabilities of any of the
respective Companies which, individually or in the aggregate, has had or would
be reasonably likely to have, a Material Adverse Effect; (ii) none of such
Companies has made or declared any dividend or declared, made or paid any other
distribution in respect of its capital stock; (iii) none of such Companies has
suffered any casualty which resulted in damage,


                                       10
<PAGE>   15


destruction or loss (whether or not covered by insurance); and (iv) none of such
Companies has suffered any strike or other work stoppage.

         4.17 Title. Each of the Companies has (i) with respect to real property
which is leased and used by it in its business, valid and subsisting leasehold
interests and (ii) with respect to the owned or leased personal property and
assets used by it in its business, good title or valid leasehold interests, in
each instance, free and clear of any Encumbrances, except Permitted Encumbrances
or any Encumbrances reflected on the Financial Statements.

         4.18 Licenses.

                  (a) Schedule 4.18 sets forth a complete list of all of the
telecommunications licenses held by the Companies (the "Licenses"). Each of the
Licenses listed in Schedule 4.18 was duly authorized, granted and delivered by
the appropriate governmental entity or an instrumentality thereof to such of the
Companies identified in Schedule 4.18 as holding such License and recorded with
the appropriate government entity in accordance with all applicable Legal
Requirements. Each of the Licenses is held by such of the Companies identified
in Schedule 4.18 as holding such License, free and clear of any Encumbrance or
other attachments and duties of any kind except as set forth in the relevant
License. There are no restrictions or limitations on the use of the rights
granted by the Licenses except for those expressly set forth in each of the
Permits, Licenses and applicable Law.

                  (b) Since the award of the Licenses, each of the Companies
holding a License has complied in all material respects with the terms and
conditions of the License held by it and with the applicable telecommunications
Laws (including any required build-out deadlines and notice or filing
obligations) and has made all necessary payments required to be made thereunder.
None of the transactions contemplated hereby will result or has resulted in the
termination, modification, suspension or revocation of any License.

         4.19 Insurance. Each of the Companies has in place adequate and
appropriate insurance policies, given its industry and its current stage of
development. None of the Companies has been notified of any cancellation of or
any refusal of any insurance coverage relating to its operations by any
insurance carrier to which it has applied for insurance since its formation.
Each of the Companies is in compliance in all material respects with such
insurance policies and has paid all outstanding premiums when and as due. There
is no pending claim under any insurance policy to which any of the Companies is
an insured or beneficiary or any fact or circumstance reasonably likely to give
rise to such a claim.

         4.20 Liabilities. Except as set forth in the Financial Statements, on
Schedule 4.20, or in the Licenses or Contracts, none of the Companies has
incurred any


                                       11
<PAGE>   16


outstanding material obligation, debt or liability, fixed or contingent
("Liabilities") to any Person.

         4.21 Taxes.

                  (a) The Companies have filed all federal, state, departmental,
municipal and foreign Tax returns required by law to be filed by them other than
such filings, the failure of which to have been made, would not reasonably be
likely to result in the imposition of significant penalties on any of the
Companies. Except as set forth on the Financial Statements, and except for taxes
the failure of which to pay would not reasonably be likely to result in the
imposition of significant penalties on any of the Companies, each of the
Companies has paid all such taxes that have already become due and payable. The
provisions shown on the Financial Statements are adequate to reflect any
material amount of unpaid Taxes of the Companies due or to become due with
respect to fiscal periods ended on or before the date of the Financial
Statements. As of the date hereof, there is no claim or assessment pending
against the Company or any of the other Companies, based on a failure to pay
Taxes and no basis exists for any such claim.

                  (b) The Company is not aware of and, to the Company's
knowledge, there are no circumstances which, either by passage of time or
issuance of an assessment binding on any of the Companies to pay any Tax or
contribution, may give rise to any type of dispute with any Tax authority in
relation to any Tax obligation or liability.

         4.22 Collective Bargaining Agreements, Employment Agreements and
Employee Relations.

                  (a) Except as set forth on Schedule 4.22(a), none of the
Companies has in effect any collective bargaining agreement or employment
agreement which is not terminable at will in accordance with the laws of the
jurisdictions in which it operates. Except as set forth on Schedule 4.22(a),
there are no disputes currently subject to any grievance procedure, arbitration
or litigation under such collective bargaining agreements or employment
agreements nor is there any default under any such agreements, by any of the
Companies or to the knowledge of the Company, any other party thereto.

                  (b) Schedule 4.22(b) sets forth all employees and directors of
the Company and their remuneration rates, applicable benefits and the applicable
term of their employment.

         4.23 Employee Benefits.

                  (a) Except as set forth on Schedule 4.23, the Companies do not
maintain or contribute to or have any liability with respect to (i) any
incentive, bonus, commission or deferred compensation or severance or
termination pay plan, agreement


                                       12
<PAGE>   17


or arrangement for the benefit of employees employed by it or any director, (ii)
any pension, profit-sharing, stock purchase, stock option, group life insurance,
hospitalization insurance, disability, retirement or any other employee benefit
plan, agreement or arrangement, for the benefit of employees employed by it or
any director or (iii) any fringe benefit plan, agreement or arrangement for the
benefit of employees employed by it or any director (the items referred to in
(i), (ii), and (iii) above are hereinafter referred to collectively as, the
"Plans" and individually as a "Plan").

                  (b) There are no scheduled or agreed-upon future increases of
benefit levels for employees employed by any of the Companies, and no increases
in benefits have (i) been proposed by any of the Companies for the benefit of
its employees or any director, (ii) been made the subject of representation or
similar communication by any of the Companies to their employees or directors or
(iii) to the knowledge of the Company, been requested or demanded by employees
employed by any of the Companies under circumstances which make it reasonable to
expect that such increase will be granted.

                  (c) Each of the Companies has made all requisite pension and
other governmental and/or social security contributions on its own behalf and on
behalf of its employees and is in compliance in all material respects with all
labor and social security obligations pursuant to the applicable Laws and Legal
Requirements.

         4.24 Recordkeeping Compliance. Except as set forth on Schedule 4.24,
each of the Companies has maintained its books and records and accounts in
accordance with all applicable Legal Requirements, and all corporate and other
documents required to be submitted to relevant federal, state, departmental and
municipal authorities by each of such Companies have been duly and punctually
submitted and have been true and correct in all material respects.

         4.25 Condition of the Companies; Operation of Business in the Ordinary
Course. All of the material equipment, buildings and other assets of each of the
Companies used in connection with the operation of its businesses are in good,
workmanlike condition and fit for use for its intended purpose, ordinary wear
and tear excepted.

         4.26 Y2K Compliance. Each of the Companies has taken steps to verify
from vendors that on and following January 1, 2000, (i) its computer systems and
(ii) equipment containing embedded microchips (including systems and equipment
supplied by others or with which the systems of such Company interface) will
function properly. The cost to each of the Companies of the reasonably
foreseeable consequences of the Year 2000 to the respective company resulting
from the failure of its systems cannot be reasonably expected to have a Material
Adverse Effect. Each of the Companies has complied with the Year 2000
requirements, if any, established by the corresponding authorities.

                                       13
<PAGE>   18

         4.27 Broker's Fees. Except for any fees owed to Lehman Brothers,
Donaldson Lufkin & Jenrette and TD Securities, for which the Purchasers have no
liability, the Company has not employed any broker, finder, consultant or
intermediary in connection with the transactions contemplated by the Transaction
Documents that would be entitled to a broker's, finder's or similar fee or
commission in connection therewith.

         4.28 Foreign Corrupt Practices Act. The Company represents that (i) it
has not taken any action which is or could be deemed to be a violation of the
Foreign Corrupt Practices Act in respect of any of the Companies; (ii) it is not
aware of any action or conduct which could be deemed to be a violation of the
Foreign Corrupt Practices Act in respect of any of the Companies and (iii) none
of its managers, officers, directors, employees, stockholders, members, agents
or representatives has offered, given, paid, authorized the payment of, or
promised, directly or indirectly, any money, gift, promise or other thing of
value to any Foreign Official (or to any other Person while knowing it will be
offered, given or promised to a Foreign Official) for any purpose including, by
way of example but not limitation, influencing any act or decision of such
Person acting in their official capacity, inducing such Person to do or omit to
do any action in violation of their lawful duty, inducing such Person to use
their influence with the government of the Republic of Argentina, the Republic
of Peru, the Republic of Colombia, the Republic of Venezuela, the Republic of
Uruguay, the Republic of Chile, the Federative Republic of Brazil or any other
government or any instrumentality thereof to affect or influence any act or
decision of such government or instrumentality, in order to assist any of the
Companies or their stockholders or members to obtain or retain business for or
with, or in directing business to, any Person.

         4.29 Offering. Subject to the accuracy of the Purchasers'
representations in Section 5 hereof, the offer, sale and issuance of the Shares,
and of any Common Stock into which the Shares are convertible (the "Conversion
Shares") constitute transactions exempt from the registration requirements of
Section 5 of the Securities Act of 1933, as amended (the "Securities Act") and
state Blue Sky laws.

         4.30 Spectrum Allocation. The spectrum allocation held by or available
for use by each of the Companies is reasonably sufficient to enable such of the
Companies to satisfy its current business plan as presented to the Purchasers
except where the failure to have such allocation will not have a Material
Adverse Effect on such of the Companies; provided that in respect of the
Brazilian Companies, in the event any such Brazilian Company needs additional
spectrum to satisfy its current business plan objectives, the Company reasonably
believes that such spectrum should be available from ANATEL so long as such
Brazilian Company has complied with its existing license obligations.

5.       REPRESENTATIONS AND WARRANTIES OF THE PURCHASERS

         Each Purchaser severally and not jointly hereby represents and warrants
to the Company, as of the date hereof, as follows:


                                       14
<PAGE>   19


         5.1 Requisite Power and Authority. Such Purchaser has all necessary
power and authority under all applicable provisions of law to execute and
deliver this Agreement and to carry out its provisions. All actions on such
Purchaser's part required for the lawful execution and delivery of this
Agreement have been or will be effectively taken prior to the Initial Closing.

         5.2 Investment Representations. Such Purchaser understands that neither
the Shares nor the Conversion Shares have been registered under the Securities
Act. Such Purchaser also understands that the Shares are being offered and sold
pursuant to an exemption from registration contained in the Securities Act based
in part upon the Purchaser's representations contained in this Agreement.

                  (a) Purchaser Bears Economic Risk. Such Purchaser has
substantial experience in evaluating and investing in private placement
transactions of securities in companies similar to the Company so that it is
capable of evaluating the merits and risks of its investment in the Company and
has the capacity to protect its own interests. Such Purchaser must bear the
economic risk of this investment indefinitely unless the Shares (or the
Conversion Shares) are registered pursuant to the Securities Act, or an
exemption from registration is available. Such Purchaser understands that the
Company has no present intention of registering the Shares, the Conversion
Shares or any shares of its Common Stock. Such Purchaser also understands that
there is no assurance that any exemption from registration under the Securities
Act will be available and that, even if available, such exemption may not allow
such Purchaser to transfer all or any portion of the Shares or the Conversion
Shares under the circumstances, in the amounts or at the times such Purchaser
might propose.

                  (b) Acquisition for Own Account. Such Purchaser is acquiring
the Shares and the Conversion Shares for its own account for investment only,
and not with a view towards their distribution in violation of applicable
securities laws.

                  (c) Purchaser Can Protect Its Interest. Such Purchaser
represents that, by reason of its or of its management's business or financial
experience, such Purchaser has the capacity to protect its own interests in
connection with the transactions contemplated in this Agreement.

                  (d) Accredited Investor. Such Purchaser represents that it is
an accredited investor within the meaning of Regulation D under the Securities
Act.

                  (e) Company Information. Such Purchaser has had an opportunity
to discuss the Company's business, management and financial affairs with
directors, officers and management of the Company. Such Purchaser has also had
the opportunity to ask questions of, and receive answers from, the Company and
its management regarding the terms and conditions of this investment.


                                       15
<PAGE>   20


                  (f) Rule 144. Such Purchaser acknowledges and agrees that the
Shares and the Conversion Shares must be held indefinitely unless they are
subsequently registered under the Securities Act or an exemption from such
registration is available. Such Purchaser has been advised or is aware of the
provisions of Rule 144 promulgated under the Securities Act, which permits
limited resale of shares purchased in a private placement subject to the
satisfaction of certain conditions, including, among other things: the
availability of certain current public information about the Company, the resale
occurring not less than one year after a party has purchased and paid for the
security to be sold, the sale being through an unsolicited "broker's
transaction" or in transactions directly with a market maker (as said term is
defined under the Securities Exchange Act of 1934, as amended) and the number of
shares being sold during any three-month period not exceeding specified
limitations.

         5.3 Broker's Fees. None of the Purchasers has employed any broker,
finder, consultant or intermediary in connection with the transactions
contemplated by the Transaction Documents that would be entitled to a broker's
finder's or similar fee or commission in connection therewith.

6.       CONDITIONS PRECEDENT TO PURCHASERS' OBLIGATIONS

         6.1 Conditions to Initial Closing. The obligation of each Purchaser to
purchase and pay for the Shares to be delivered to it at the Initial Closing
shall be subject to the satisfaction of the following conditions as of the
Initial Closing Date:

                           (A) the representations and warranties of the Company
contained in this Agreement shall be true and correct on and as of the Initial
Closing Date (a certificate stating such representations and warranties are true
and correct shall be delivered by the Company to the Purchasers on the Initial
Closing Date);

                           (B) concurrent with the Initial Closing, the Company
and the Purchasers shall have entered into the Third Amended and Restated
Investors Agreement in the form attached hereto as Exhibit D;

                           (C) each Purchaser shall have received from Holland &
Hart LLP, counsel for the Company, an opinion in substantially the form attached
hereto as Exhibit E, dated as of the Initial Closing Date;

                           (D) any applicable waiting periods under the
Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, (the "HSR
Act") with respect to such Purchaser's acquisition of Shares in the Initial
Closing, shall have expired or otherwise been terminated;

                           (E) the Certificate of Incorporation shall have been
filed with the Delaware Secretary of State; and


                                       16
<PAGE>   21



                           (F) as to BankAmerica Investment Corporation ("BAIC")
only, its Investment Committee shall have approved BAIC's purchase of up to
US$25 million of the Shares hereunder.

         6.2 Conditions to Subsequent Closings. The obligation of each Purchaser
to purchase and pay for the Shares to be delivered to it at any Subsequent
Closing shall be subject to the satisfaction of the following conditions as of
such Subsequent Closing Date:

                           (A) any applicable waiting periods under the HSR Act
with respect to such Purchaser's acquisition of Shares in the Subsequent
Closing, shall have expired or otherwise been terminated; and

                           (B) as to BAIC only, with respect to the last US$10
million of the Shares to be purchased by BAIC in the Subsequent Closings, BAIC
shall have received internal approval for the purchase of such Shares.

7.       VESPER BOARD OBSERVATION RIGHTS

         The Company shall use its best efforts to permit one representative of
the holders of the Company's Series B/B-1 Preferred Stock to attend board
meetings of Vesper Holding S.A. and Vesper Sao Paulo Holding S.A. as an
observer. The observer for the initial 12-month period following the Initial
Closing Date shall be designated by BAIC and thereafter by the vote of two of
the three largest holders of Series B/B-1 Preferred Stock.

8.       USE OF PROCEEDS

         The Company shall use the proceeds from the sale of the Shares to
finance its commitments to the Brazilian Companies and the Subsidiaries, to fund
general corporate purposes including development activities, and to cover fees
and expenses related to the sale of the Shares.

9.       MISCELLANEOUS

         9.1 Governing Law. This Agreement shall be governed in all respects by
the laws of the State of Colorado as such laws are applied to agreements between
Colorado residents entered into and performed entirely in Colorado, except that
the General Corporation Law of the State of Delaware shall govern as to matters
of corporate law.

         9.2 Survival. The representations, warranties, covenants and agreements
made herein shall survive any investigation made by any Purchaser and the
closing of the transactions contemplated hereby. All statements as to factual
matters contained in any certificate or other instrument delivered by or on
behalf of the Company pursuant hereto in connection with the transactions
contemplated hereby shall be deemed to be


                                       17
<PAGE>   22


representations and warranties by the Company hereunder solely as of the date of
such certificate or instrument.

         9.3 Successors and Assigns. Except as otherwise expressly provided
herein, the provisions hereof shall inure to the benefit of, and be binding
upon, the successors, assigns, heirs, executors and administrators of the
parties hereto.

         9.4 Entire Agreement; Amendment and Waiver. This Agreement, the
Exhibits, Schedules and the other documents expressly delivered pursuant hereto,
including the Investors Agreement, supersede any other agreement, whether
written or oral, that may have been made or entered into by the parties hereto
relating to the matters contemplated hereby and constitute the full and entire
understanding and agreement between the parties with regard to the subjects
hereof, and no party shall be liable or bound to any other in any manner by any
representations, warranties, covenants and agreements except as specifically set
forth herein and therein. Neither this Agreement nor any term hereof may be
amended, waived, discharged or terminated except by a written instrument signed
by the Company and the holders of a majority of the Shares held by the
Purchasers, and any such amendment, waiver, discharge or termination shall be
binding on all Purchasers, except that if such amendment, waiver, discharge or
termination creates an obligation by any Purchaser, or if it adversely affects a
particular Purchaser in a manner different from the other Purchasers, the
consent of the affected Purchaser shall be required.

         9.5 Specific Enforcement. Any Purchaser shall be entitled to specific
enforcement of its rights under this Agreement. The parties acknowledge that
money damages would be an inadequate remedy for its breach of this Agreement and
consent to an action for specific performance or other injunctive relief in the
event of any such breach.

         9.6 Severability. Unless otherwise expressly provided herein, a
Purchaser's rights hereunder are several rights, not rights jointly held with
any of the other Purchasers. In case any provision of this Agreement shall be
invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions shall not in any way be affected or impaired thereby.

         9.7 Notices. All notices required or permitted hereunder shall be in
writing and shall be deemed effectively given: (i) upon personal delivery to the
party to be notified; (ii) when sent by confirmed telex or facsimile if sent
during normal business hours of the recipient, if not, then on the next business
day; (iii) five (5) days after having been sent by registered or certified mail,
return receipt requested, postage prepaid; or (iv) one (1) day after deposit
with a nationally recognized overnight courier, special next day delivery, with
verification of receipt. All communications shall be sent to the Company at 6400
South Fiddlers Green Circle, Suite 710, Englewood, CO 80111, Attention: Vice
President - Strategic and Legal Affairs, with a copy to Holland & Hart LLP, 555
17th Street, Suite 3200, Denver, CO 80202, Attention: Mark D. Ebel, and to a


                                       18
<PAGE>   23


Purchaser at the address set forth on Exhibit A attached hereto or at such other
address as the Company or Purchaser may designate by ten (10) days advance
written notice to the other parties hereto.

         9.8 Counterparts; Facsimile. This Agreement may be executed in any
number of counterparts, each of which shall be an original, but all of which
together shall constitute one instrument. This Agreement may be executed and
delivered by facsimile.

         9.9 Future Financings; Purchaser Obligations. Nothing contained in this
Agreement or any Purchaser's prior dealings with the Company shall be deemed to
constitute a commitment on the part of any Purchaser to participate in any
future financings by the Company. In connection with any merger involving the
Company, the indemnification obligations of each Purchaser (if any) shall be
several and not joint, and shall in no event exceed the amount of consideration
to be received by such Purchaser in the merger.

         9.10 Expense Reimbursement. The Company hereby agrees to reimburse the
Purchasers for the fees and expenses incurred by the Purchasers in connection
with the due diligence review and negotiation and preparation of the Transaction
Documents (including the fees and expenses of one U.S. counsel which shall be
Kirkland & Ellis, one Brazilian counsel which shall be Tozzini, Freire, Teixeira
e Silva Advogados and one Argentinean counsel which shall be Perez Alanti
Grondona Benites Arsten Martinez de Hoz, and one accounting firm for the
Purchasers) not to exceed an aggregate of $250,000 for all Purchasers. In
addition, the Company hereby agrees to pay any required filing fees under the
HSR Act relating to the acquisition by the Purchasers of the Shares.

         9.11 Regulatory Compliance Matters. If any Regulated Holder or any of
its Affiliates has a Regulatory Problem, the Company will cooperate and assist
such Regulated Holder by taking such actions as may reasonably be necessary or
desirable in order to resolve such Regulatory Problem.

         9.12 Understanding Among the Purchasers. The determination of each
Purchaser to purchase shares of the Series B/B-1 Preferred Stock pursuant to
this Agreement has been made by such Purchaser independent of any other
Purchaser and independent of any statements or opinions as to the advisability
of such purchase or as to the properties, business, prospects or condition
(financial or otherwise) of the Company and its Subsidiaries which may have been
made or given to such Purchaser by any other Purchaser or by any agent or
employee of any other Purchaser. Each Purchaser acknowledges and agrees that no
other Purchaser shall be responsible in any way or held liable or accountable to
any extent for any information, documents, materials, analysis, projections,
plans or other data (or compilations thereof) relating to the Company or the
transactions contemplated hereby (collectively, "Investment Data") provided to
such Purchaser by any other Purchaser, and each Purchaser agrees to hold
harmless and not make any claims against any other Purchaser with respect to any


                                       19
<PAGE>   24


Investment Data provided to such Purchaser by such other Purchaser. In addition,
it is acknowledged by each of the other Purchasers that BAIC has not acted as an
agent of such Purchaser in connection with making its investment hereunder and
that BAIC shall not be acting as an agent of such Purchaser in connection with
monitoring its investment hereunder.

         9.13 Acknowledgment Regarding Kirkland & Ellis. BAIC has retained
Kirkland & Ellis in connection with the purchase of Series B/B-1 Preferred Stock
pursuant to this Agreement and may in the future retain Kirkland & Ellis in
connection with the matters contemplated by this Agreement. Each of the other
Purchasers understands that Kirkland & Ellis is not representing and shall not
be deemed to be representing any of such other Purchasers in connection with the
purchase of Series B/B-1 Preferred Stock pursuant to this Agreement or other
matters contemplated by this agreement unless and until (i) specifically
requested by such other Purchasers and agreed to by Kirkland & Ellis, and (ii)
such other Purchasers sign a written retention and conflict waiver letter
provided by Kirkland & Ellis.

10.      CERTAIN DEFINITIONS.

         "Acquired Subsidiaries" means Smartel S.A., PCN Investments S.A.,
Interloop Americas Inc., Telelatina S.A., Formus S.A., Telelatina Management
Company, Formus Communications Latin America LLC, Formus Communications
Argentina LLC, Formus Communications Bolivia LLC, Formus Communications Colombia
LLC, Formus Communications Peru LLC, Formus Communications Venezuela LLC, Formus
S.A., Formus Bolivia S.A., Formus Comunicaciones de Chile Limitada, Formus
Colombia S.A. E.S.P., Formus Peru S.A. and Telecomunicaciones Interactivas de
Venezuela C.A..

         "Affiliate" shall mean, with respect to any Person, any other Person
directly or indirectly controlling, controlled by or under common control with,
such Person; for purposes of this definition, "control" shall mean the
possession, directly or indirectly, of the power to direct or cause the
direction of the management and policies of an entity, whether through the
ownership of voting securities, by contract or otherwise.

         "BHCA Rules" shall mean the Bank Holding Company Act and the rules and
regulations thereunder.

         "Brazilian Companies" shall mean Vesper S.A., Vesper Holding S.A.,
Vesper Sao Paulo Holding S.A. and MegaTel do Brasil S.A., each of which is a
sociedade anonima formed under the Laws of the Federative Republic of Brazil.

         "Companies" shall mean the Company, the Brazilian Companies and the
Subsidiaries (including the Acquired Subsidiaries).

         "Contracts" shall mean any and all written contracts, agreements,
obligations, franchises, warranties, guaranties, undertakings, commitments,
understandings,


                                       20
<PAGE>   25


arrangements, leases, licenses, registrations, easements, rights-of-way,
mortgages, bonds, notes and other instruments and obligations and interests
therein or rights thereunder, excluding any Permits, in each case which are
material to the business of any of the Companies, as the case may be.

         "Encumbrances" shall mean any mortgage, imperfection of title, lien,
pledge, option, security interest, claim, charge or other encumbrance of any
kind whatsoever.

         "Environmental Laws" shall mean any Laws or Legal Requirements relating
to human health and safety, pollution, protection or cleanup of the environment
(including, but not limited to, ambient air, surface water, groundwater, land
surface or subsurface strata and flora or fauna) and such other Laws or Legal
Requirements relating to the release, containment, removal, remediation,
response, cleanup or abatement of any sort of chemical or hazardous substance.

         "Foreign Corrupt Practices Act" shall mean the Foreign Corrupt
Practices Act of the United States of America (15 U.S.C.A. Section 78dd) and any
successor statute or legislation.

         "Foreign Official" means (i) an officer or employee of any government
other than the U.S. including but not limited to the Republic of Argentina, the
Republic of Peru, the Republic of Colombia, the Republic of Venezuela, the
Republic of Uruguay, the Republic of Chile or the Federative Republic of Brazil
or any political subdivision, department, agency or instrumentality thereof;
(ii) a Person acting in an official capacity for or on behalf of any such
government or department, agency or instrumentality; (iii) a member or official
of a political party in the Republic of Argentina, the Republic of Peru, the
Republic of Colombia, the Republic of Venezuela, the Republic of Uruguay, the
Republic of Chile or the Federative Republic of Brazil; (iv) a candidate for
political office in the Republic of Argentina, the Republic of Peru, the
Republic of Colombia, the Republic of Venezuela, the Republic of Uruguay, the
Republic of Chile or the Federative Republic of Brazil or (v) any other meanings
or interpretations given to the term under the Foreign Corrupt Practices Act as
it applies to any of the Companies.

         "Investors Agreement" shall mean the Third Amended and Restated
Investors Agreement dated as of the Initial Closing Date, among the Company, the
Purchasers and certain other stockholders of the Company, a copy of which is
attached hereto as Exhibit D.

         "Judgments" shall mean any and all judgments, orders, directives,
rulings, decisions, injunctions, decrees or awards of any federal, state,
municipal, departmental or foreign court, arbitrator or administrative or
governmental authority, bureau or agency.


                                       21
<PAGE>   26


         "Laws" shall mean all laws (whether statutory or otherwise), rules and
regulations of all governmental, judicial, legislative, executive,
administrative or regulatory authorities (federal, state, municipal,
departmental, foreign or otherwise).

         "Legal Requirements" shall mean any and all applicable (i) Permits,
(ii) Laws, (iii) Judgments, and (iv) contracts with any federal, state,
municipal or departmental or foreign court, arbitrator or administrative or
governmental authority, bureau or agency relating to compliance with matters
described in (ii) and (iii) above.

         "Liabilities" shall have the meaning set forth in Section 4.20 of this
Agreement.

         "Licenses" shall have the meaning set forth in Section 4.18 of this
Agreement.

         "Material Adverse Effect" shall have the meaning set forth in Section
4.1 of this Agreement.

         "Permits" shall mean any and all permits, authorizations, approvals,
registrations, waivers, variances and licenses (i) under any (x) Laws or (y)
Judgments with any federal, state, municipal or departmental court, arbitrator
or administrative or governmental authority, bureau or agency relating to
compliance with the matters described in (x) above or (ii) granted by any
federal, state, municipal or departmental administrative or governmental
authority, bureau or agency (whether domestic or foreign).

         "Permitted Encumbrances" shall mean undetermined or inchoate liens
arising or potentially arising under statutory provisions which have not at the
time been filed and of which written notice has not been served pursuant to Laws
or which relate to obligations not overdue or delinquent, minor imperfections in
title, if any, not material in nature and which, individually and in the
aggregate, do not materially interfere with or affect the conduct of the
Companies' businesses.

         "Person" shall mean any individual, partnership, joint venture, firm,
corporation, limited liability company, association, trust or other similar
entity or any government or political subdivision or any agency, department or
instrumentality thereof.

         "Purchaser Share Limit" shall have the meaning set forth in Section 1.2
of this Agreement.

         "Regulated Holder" means any holder of the Company's capital stock that
is regulated under the BHCA Rules.

         "Regulatory Problem" means any transaction, circumstance or situation
whereby (i) Regulated Holder and its Affiliates would own, control or have power
over a greater quantity of securities of any kind issued by the Company or any
other entity than are permitted under any requirement of any governmental
authority, or would cause such Regulated Holder or any of its Affiliates to not
be able to hold an investment in or


                                       22
<PAGE>   27


provide financing to the Company in compliance with any applicable requirement
of any governmental authority, or (ii) it has been asserted by any governmental
regulatory agency (or any Regulated Holder believes that there is a risk of such
assertion) that such Regulated Holder and its Affiliates are not entitled to
hold the Shares held by such Regulated Holder and its Affiliate or exercise any
significant right with respect to the Shares held by such Person or provide
financing to the Company in compliance with any applicable requirement of any
governmental authority.

         "Subsidiaries" or "Subsidiary" shall mean any subsidiary of the Company
over which the Company exercises control. For purposes of this definition,
"control" shall mean the direct or indirect ownership by the Company of 50% or
more of the voting securities of such subsidiary.

         "Tax" and "Taxes" shall mean (i) all taxes, assessments, levies,
imports, duties, license fees, registration fees or other similar governmental
charges including, without limitation, income taxes, franchise taxes, transfer
taxes or fees, value added taxes, sales taxes, excise taxes, ad valorem taxes,
withholding taxes, minimum taxes and social security or other employee-related
taxes and (ii) any interest, penalties or additions to tax imposed on a tax
described in clause (i) hereof imposed by any federal, state, municipal,
departmental or foreign governmental agency or political subdivision.

         "Transaction Documents" shall mean this Stock Purchase Agreement and
the Investors Agreement.


                                       23
<PAGE>   28


         IN WITNESS WHEREOF, the parties hereto have executed this Follow-On
Series B/B-1 Preferred Stock Purchase Agreement as of the date set forth in the
first paragraph hereof.

                                          COMPANY:

                                          VELOCOM INC.


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


                                          PURCHASERS:

                                          BANKAMERICA INVESTMENT CORPORATION


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


                                          QUALCOMM INCORPORATED


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


                                          FIRST UNION INVESTORS, INC.


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



                                       24
<PAGE>   29


                                          DOLPHIN COMMUNICATIONS FUND, L.P.
                                             By:  Dolphin Communications, L.P.
                                             Its: General Partner

                                                  By:  Dolphin Communications,
                                                       L.L.C.
                                                  Its: General Partner

                                          By:
                                             ----------------------------------
                                             Name: Barry W. Stewart
                                             Its: Member


                                          DOLPHIN COMMUNICATIONS
                                          PARALLEL FUND, L.P.
                                             By:  Dolphin Communications, L.P.
                                             Its: General Partner

                                                  By:  Dolphin Communications,
                                                       L.L.C.
                                                  Its: General Partner

                                          By:
                                             ----------------------------------
                                             Name: Barry W. Stewart
                                             Its: Member


                                          NORTHWOOD VENTURES LLC.


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


                                          TORONTO DOMINION INVESTMENTS, INC.


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


                                       25
<PAGE>   30



                                          CRI MEDIA PARTNERS, L.P.


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


                                          CRI MEDIA PARTNERS II, L.P.


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


                                          CHESTNUT HILL VELOCOM, LLC.


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


                                          TD SECURITIES (USA), INC.


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



                                          ----------------------------------
                                          Aleks Acimovic



                                          ----------------------------------
                                          Orlin R. Jacobson



                                          ----------------------------------
                                          Ravi Mhatre



                                       26
<PAGE>   31



                 FOLLOW-ON SERIES B/B-1 STOCK PURCHASE AGREEMENT

                                    EXHIBIT A

                             SCHEDULE OF PURCHASERS



<TABLE>
<CAPTION>
                                          INITIAL CLOSING                               SUBSEQUENT CLOSINGS
                                                                            SECOND CLOSING               FINAL CLOSING
                                                       AGGREGATE                        AGGREGATE                    AGGREGATE
                                      NUMBER OF         PURCHASE       NUMBER OF         PURCHASE     NUMBER OF       PURCHASE
NAME AND ADDRESS                       SHARES            PRICE          SHARES            PRICE        SHARES         PRICE
----------------                       ------          ---------       ---------        ---------     ---------      ---------
<S>                                  <C>              <C>              <C>             <C>            <C>            <C>
BankAmerica Investment
Corporation
231 S. LaSalle Street
Chicago, IL 60697                    2,916,667(1)     $17,500,002      1,458,333(2)    $ 8,749,998    1,458,333      $ 8,749,998

Qualcomm Incorporated
5775 Morehouse Drive
San Diego, CA 92121                  1,250,000        $ 7,500,000        625,000       $ 3,750,000      625,000      $ 3,750,000

Chestnut Hill VeloCom, LLC
1300 Boylston Street
Chestnut Hill, MA 02467              1,725,000        $10,350,000        862,500       $ 5,175,000      862,500      $ 5,175,000

Dolphin Communications Fund, L.P.
750 Lexington Avenue
16th Floor
New York, NY 10022                     293,140        $ 1,758,840        146,570       $   879,420      146,570      $   879,420

Dolphin Communications Parallel
Fund, L.P.
750 Lexington Avenue
16th Floor
New York, NY 10022                     123,527        $   741,162         61,763       $   370,578       61,763      $   370,578

First Union Investors, Inc.
c/o First Union Capital Partners
1 First Union Center
5th Floor
NC 0732
Charlotte, NC 28288                  1,595,489        $ 9,572,934        797,745(2)    $ 4,786,470      797,745(2)   $ 4,786,470

Toronto Dominion Investments,
Inc.
909 Fannin, Suite 1700
Houston, TX 77010                      583,333        $ 3,499,998        291,667       $ 1,750,002      291,667      $ 1,750,002
</TABLE>

                                       A-1
<PAGE>   32
<TABLE>
<CAPTION>
                                          INITIAL CLOSING                               SUBSEQUENT CLOSINGS
                                                                            SECOND CLOSING               FINAL CLOSING
                                                       AGGREGATE                     AGGREGATE                    AGGREGATE
                                      NUMBER OF         PURCHASE       NUMBER OF      PURCHASE       NUMBER OF     PURCHASE
NAME AND ADDRESS                       SHARES            PRICE          SHARES         PRICE          SHARES        PRICE
----------------                       ------          ---------       ---------     ---------       ---------    ---------
<S>                                  <C>              <C>              <C>             <C>           <C>          <C>
CRI Media Partners, L.P.
667 Madison Avenue
18th Floor
New York, NY 10021                     13,333          $    79,998         6,667     $    40,002          6,667    $    40,002

CRI Media Partners II, L.P.
667 Madison Avenue
18th Floor
New York, NY 10021                     53,333          $   319,998        26,667     $   160,002         26,667    $   160,002

Northwood Ventures LLC
485 Underhill Blvd
Syosset, NY 11791                     125,000          $   750,000        62,500     $   375,000         62,500    $   375,000

Aleks Acimovic
18144 SE Ridgeview Drive
Tequesta, FL 33469                      8,333          $    49,998         4,167     $    25,002          4,167    $    25,002

Orlin R. Jacobson
8702 Wentworth Ct
Lone Tree, CO 80124                     5,000          $    30,000         2,500     $    15,000          2,500    $    15,000

Ravi Mhatre
555 California St
Suite 3130
San Francisco, CA 94104                 6,250          $    37,500         3,125     $    18,750          3,125    $    18,750

TD Securities (USA), Inc.
31 W. 52nd Street
New York, NY 10019                     25,000          $   150,000        12,500     $    75,000         12,500    $    75,000


TOTAL                               8,723,405          $52,340,430     4,361,704     $26,170,224      4,361,704    $26,170,224
                                  -----------          -----------   -----------     -----------    -----------    -----------
</TABLE>

----------------
(1)     Of this amount, 948,913 shares shall be Series B Preferred Stock, and
        1,967,754 shares shall be Series B-1 Preferred Stock.

(2)     The Investor shall have the right to designate the number of these
        shares that shall be Series B Preferred Stock and the number that shall
        be Series B-1 Preferred Stock.

                                       A-2



<PAGE>   33



                 FOLLOW-ON SERIES B/B-1 STOCK PURCHASE AGREEMENT

                                    EXHIBIT B

        FORM OF SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION


                                       B-1

<PAGE>   34



            SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION
                                       OF
                                  VELOCOM INC.
                    (Pursuant to Section 242 and Section 245)

     VELOCOM INC., originally filed in the state of Delaware as WLL
International, Inc., hereby certifies as follows:

     1. The name of the corporation is VELOCOM INC. (the "Corporation"). The
date of filing of its original Certificate of Incorporation with the Secretary
of State of the State of Delaware was April 29, 1998, and the Amended and
Restated Certificate of Incorporation was filed with the Delaware Secretary of
State on December 3, 1999.

     2. This Second Amended & Restated Certificate of Incorporation restates and
amends the original Certificate of Incorporation, the Amended and Restated
Certificate of Incorporation and all amendments and certificates thereto.

     3. This Second Amended & Restated Certificate of Incorporation (the
"Certificate of Incorporation") has been duly adopted in accordance with Section
242 and Section 245 of the Delaware General Corporation Law.

                                  ARTICLE ONE.


     The name of this corporation is VELOCOM INC.

                                  ARTICLE TWO.

     The address of the Corporation's registered office in the State of Delaware
is 1013 Centre Road, City of Wilmington, County of New Castle, Delaware 19805.
The name of its registered agent at such address is Corporation Service Company.

                                 ARTICLE THREE.

     The nature of the business or purposes to be conducted or promoted is to
engage in any lawful act or activity for which corporations may be organized
under the General Corporation Law of the State of Delaware.

                                  ARTICLE FOUR.

SECTION 4.1    AUTHORIZED CAPITAL.


               (a) The Corporation shall be authorized to issue two classes of
stock to be designated respectively "Common Stock" and "Preferred Stock." The
aggregate number of shares which the Corporation shall have the authority to
issue is one hundred eighty seven million two hundred sixty eight thousand eight
hundred forty two (187,268,842); the total number of shares of Common Stock
shall be one hundred eight


<PAGE>   35
million six hundred thirty four thousand four hundred twenty one (108,634,421),
with a par value of $.0001 per share, and the total number of shares of
Preferred Stock shall be seventy eight million six hundred thirty four thousand
four hundred twenty one (78,634,421), with a par value of $.0001 per share. Such
Preferred Stock may be issued in series.

               (b) Subject to the voting requirements set forth in Section
4.2(b)(iii), the Corporation's board of directors shall have the authority,
without stockholder action, to determine the preferences, limitations and
relative rights of any Preferred Stock (whether in a series or as a class),
including without limitation the following: (i) the designation of any series of
Preferred Stock; (ii) unlimited, special, conditional, or limited voting rights,
or no right to vote; except that no condition, limitation, or prohibition on
voting shall eliminate any right to vote provided by the Delaware General
Corporation Law; (iii) redemption rights; (iv) conversion rights, (v)
distribution or dividend rights, including the determination of whether such
rights are cumulative, non-cumulative or partially cumulative, and (vi)
preference rights over any other class or series of shares with respect to
distributions, including dividends and distributions upon the dissolution of the
Corporation.

               (c) Common Stock shall be divided into one hundred six million
six hundred sixty six thousand six hundred sixty seven (106,666,667) shares of
voting common stock (the "Voting Common Stock") and one million nine hundred
sixty seven thousand seven hundred fifty four (1,967,754) shares of non-voting
Common Stock (the "Non-Voting Common Stock, and together, the "Common Stock").
Except as otherwise required by law, the Non-Voting Common Stock shall not be
entitled to vote on any matter on which the Stockholders of the Corporation
shall be entitled to vote; and shares of Non-Voting Common Stock shall not be
included in determining the number of shares voting or entitled to vote on any
such matters. Except for the difference in voting rights, both the Voting Common
Stock and the Non-Voting Common stock shall be identical in their rights.

SECTION 4.2    DESIGNATION OF PREFERRED STOCK.


               Thirty one million (31,000,000) of the authorized shares of
Preferred Stock are hereby designated as "Series A Preferred Stock" (the "Series
A Preferred"), forty one million six hundred sixty six thousand six hundred
sixty seven (41,666,667) of the authorized shares of Preferred Stock are hereby
designated as "Series B Preferred Stock" (the "Series B Preferred") and one
million nine hundred sixty seven thousand seven hundred fifty four (1,967,754)
of the authorized shares of Preferred Stock are hereby designated as "Series B-1
Preferred Stock" (the "Series B-1 Preferred," and together with the Series B
Preferred, the "Series B/B-1 Preferred"). Except for the differences in voting
and conversion rights set forth herein, both the Series B Preferred and the
Series B-1 Preferred shall be identical in their rights. The Series A Preferred
and the Series B/B-1 Preferred are hereinafter collectively referred to as the
"Series Preferred." The rights, preferences, privileges, restrictions and other
matters relating to the Series Preferred are as follows:


                                       2

<PAGE>   36


          (a)  DIVIDEND RIGHTS.

               (i) Declared Dividends. Holders of the Series Preferred, in
preference to the holders of Common Stock and any other stock of the Corporation
that is not by its terms expressly senior in right of payment to the Series
Preferred (collectively, "Junior Stock"), shall be entitled to receive
dividends, when and as declared by the board of directors, but only out of funds
that are legally available therefor. In addition, in the event that the
Corporation declares or pays any dividends upon the Common Stock (whether
payable in cash, securities or other property) other than dividends payable
solely in shares of Common Stock, the Corporation shall also declare and pay to
the holders of the Series Preferred at the same time that it declares and pays
such dividends to the holders of the Common Stock, the dividends which would
have been declared and paid with respect to the Common Stock issuable upon
conversion of the Series Preferred had all of the outstanding Series Preferred
been converted immediately prior to the record date for such dividend, or if no
record date is fixed, the date as of which the record holders of Common Stock
entitled to such dividends are to be determined. The Corporation shall not
declare dividends on one Series of Preferred Stock and not on each other Series
of Preferred Stock.

               (ii) Preference. So long as any of the Series Preferred remains
outstanding, without the prior written consent of the holders of sixty-six and
two-thirds percent (66 2/3%) of the outstanding shares of the Series Preferred
(the "Required Holders"), the Corporation shall not, nor shall it permit any
Subsidiary to, redeem, purchase or otherwise acquire directly or indirectly any
Junior Stock, nor shall the Corporation directly or indirectly pay or declare
any dividend or make any distribution upon any Junior Stock. The provisions of
this Section 4.2(a)(ii) shall not, however, apply to (i) the acquisition of
shares of any Junior Stock in exchange for shares of any other Junior Stock,
(ii) the payment of cash dividends on the Common Stock to the extent that
equivalent dividends are paid on the Series Preferred as provided above, or
(iii) any repurchase of any Reserved Employee Stock from former employees,
directors or consultants in connection with termination of employment or service
as a director or consultant that is approved by the Corporation's board of
directors.

          (b)  VOTING RIGHTS.

               (i) Generally. Except as otherwise provided herein or as required
by law, the Series Preferred shall vote with the shares of the Common Stock of
the Corporation (and not as a separate class) at any annual or special meeting
of stockholders of the Corporation, and may act by written consent in the same
manner as the Common Stock, in either case upon the following basis: each holder
of shares of the Series Preferred shall be entitled to such number of votes as
shall be equal to the whole number of shares of Common Stock into which such
holder's aggregate number of shares of the Series Preferred are convertible
(pursuant to Section 4.2(e) below) immediately after the close of business on
the record date fixed for such meeting or the effective date of such written
consent.


                                       3
<PAGE>   37

               (ii) Except as specifically set forth in this Article Four, or as
otherwise required by law, each outstanding share of Series B-1 Preferred shall
not be entitled to vote on any matter on which the stockholders of the
Corporation shall be entitled to vote; and shares of Series B-1 Preferred shall
not be included in determining the number of shares voting or entitled to vote
on any such matters.

               (iii) Class Vote Requirement. Without the affirmative vote of the
Required Holders, the Corporation shall not (i) create, issue or authorize the
issuance of any additional Common Stock or Preferred Stock or create or
authorize any new class or series of the Corporation's capital stock (except for
issuances of Reserved Employee Stock, issuances upon conversion of Preferred
Stock, and issuances in connection with strategic transactions involving the
Corporation and the non-affiliates of the Corporation approved by the
Corporation's board of directors, the primary purpose of which is other than to
raise funds for the Corporation (including (1) joint ventures, manufacturing,
marketing or distribution arrangements or (2) technology transfer or development
arrangements)); (ii) amend this Certificate of Incorporation or the
Corporation's Bylaws; (iii) engage in (1) any merger, consolidation, business
combination, recapitalization, or reorganization in which (A) the stockholders
of the Corporation immediately prior to such transaction own capital stock
representing less than seventy percent (70%) of the surviving company's voting
power in the election of directors immediately after such transaction or (B) the
stockholders of the Corporation immediately prior to such transaction do not own
substantially the same proportion of capital stock of the surviving company
after the transaction as they owned of the Corporation immediately prior to the
transaction (a "Disproportionate Change"); provided, however, that any change in
a stockholder's ownership percentage of less than ten percentage points shall
not be deemed to be a Disproportionate Change, (2) a liquidation or sale of
substantially all of the assets by the Corporation or any of its subsidiaries
outside the ordinary course of business, or (3) a purchase of substantial assets
by the Corporation or any of its subsidiaries outside the ordinary course of
business; (iv) engage in any business other than telecommunications and
multimedia communications services, including but not limited to data, voice or
video transmission, cable, IP telephony, MMDS, Internet access or any other
telecommunications service using wireless, wireline, fiber, LMDS or broadband
access or any other technology, and also including any Internet content
business; (v) increase the amount of Reserved Employee Stock above twelve
percent (12%) of the Corporation's Common Stock Deemed Outstanding; or (vi)
engage in any transaction with an affiliate of the Corporation, except for
transactions involving wholly-owned subsidiaries, that is not approved by a
majority of the Corporation's disinterested directors.

          (c)  LIQUIDATION RIGHTS.

               (i) Liquidation Value. Upon any liquidation, dissolution or
winding up of the Corporation, whether voluntary or involuntary, before any
distribution or payment shall be made to the holders of any Junior Stock or
Common Stock, (i) first, the holders of the Series B/B-1 Preferred shall be
entitled to be paid out of the assets of the Corporation an amount with respect
to each share of the Series B/B-1 Preferred

                                       4
<PAGE>   38
equal to the sum of (A) the Original Series B/B-1 Issue Price (as defined below)
plus (B) all declared but unpaid dividends thereon (the "Series B/B-1
Liquidation Value") and (ii) second, after the payment of the full liquidation
preference of the Series B/B-1 Preferred, the holders of the Series A Preferred
shall be entitled to be paid out of the assets of the Corporation an amount with
respect to each share of the Series A Preferred equal to the sum of (A) the
Original Series A Issue Price (as defined below), plus (B) all declared but
unpaid dividends thereon (the "Series A Liquidation Value"). The "Original
Series A Issue Price" shall be Three Dollars ($3.00) per share, as appropriately
adjusted for any future stock splits, stock combinations, stock dividends or
similar transactions affecting the Series A Preferred. The "Original Series
B/B-1 Issue Price" shall be Six Dollars ($6.00) per share, as appropriately
adjusted for any future stock splits, stock combinations, stock dividends or
similar transactions affecting the Series B/B-1 Preferred.

               (ii) Participation. After the payment of the full liquidation
preference of the Series Preferred as set forth in Section 4.2(c)(i) above, the
remaining assets of the Corporation legally available for distribution, if any,
shall be distributed to the holders of Junior Stock entitled to a preference
over the Common Stock and, thereafter, to the holders of Common Stock. The
holders of the Series Preferred shall be entitled to participate in
distributions to holders of the Common Stock such that, giving effect to all
distributions pursuant to Section 4.2(c)(i), the holders of the Series Preferred
receive aggregate distributions equal to the greater of (A) the Series A
Liquidation Value (in the case of the Series A Preferred) or the Series B/B-1
Liquidation Value (in the case of the Series B/B-1 Preferred), or (B) the
amounts that such holders would have received if the Series Preferred had been
converted into Common Stock immediately prior to such liquidation, dissolution
or winding up of the Corporation.

               (iii) Liquidation Events. At the option of the Required Holders,
the following events shall be considered a liquidation for purposes of Section
4.2(c).

                    (A) any (1) merger, consolidation, business combination,
reorganization or recapitalization of the Corporation that involves a
Disproportionate Change; provided, however, that any change in a stockholder's
ownership percentage of less than ten percentage points shall not be deemed to
be a Disproportionate Change; or (2) transaction or series of related
transactions in which capital stock representing in excess of thirty percent
(30%) of the Corporation's voting power in electing the board of directors is
transferred (an "Acquisition"); or

                    (B) a sale, lease or other disposition of all or
substantially all of the assets of the Corporation (an "Asset Transfer").

               (iv) Proportionate Payments. If, upon any liquidation,
dissolution or winding up, the assets of the Corporation shall be insufficient
to make payment in full to all holders of the Series Preferred, then such assets
shall be distributed first, among the holders of the Series B/B-1 Preferred at
the time outstanding, ratably in proportion to the full amounts to which they
would otherwise be


                                       5
<PAGE>   39

entitled and second, any remaining assets shall be distributed among the holders
of the Series A Preferred at the time outstanding, ratably in proportion to the
full amounts to which they would otherwise be entitled.

          (d)  REDEMPTION RIGHTS.

               (i) Scheduled Redemptions. Unless a holder of Series Preferred
elects otherwise in accordance with Section 4.2(d)(iii) below, on January 26,
2005, the Corporation shall redeem thirty three and one-third percent (33 1/3%)
of the then-outstanding shares of each of the Series A Preferred and the Series
B/B-1 Preferred held by such holder; on January 26, 2006, the Corporation shall
redeem fifty percent (50%) of the then-outstanding shares of each of the Series
A Preferred and the Series B/B-1 Preferred held by such holder; and shall redeem
all remaining shares of the Series A Preferred and the Series B/B-1 Preferred
held by such holder on January 26, 2007 (the "Scheduled Redemption Dates"), at a
price per share equal to the Series A Liquidation Value or the Series B/B-1
Liquidation Value, respectively.

               (ii) Redemption Payments. For each share of the Series Preferred
which is to be redeemed hereunder, the Corporation shall be obligated on the
Scheduled Redemption Date to pay to the holder thereof (upon surrender by such
holder at the Corporation's principal office of the certificate representing
such share) an amount in cash equal to the Series A Liquidation Value or the
Series B/B-1 Liquidation Value, as applicable. If the funds of the Corporation
legally available for redemption of the Series Preferred on any Scheduled
Redemption Date are insufficient to redeem the total number of shares to be
redeemed on such date, those funds which are legally available shall be used to
redeem the maximum possible number of shares pro rata among the holders of the
Series Preferred to be redeemed based upon the aggregate Liquidation Value of
such shares of the Series Preferred held by each such holder. At any time
thereafter when additional funds of the Corporation are legally available for
the redemption of the Series Preferred, such funds shall immediately be used to
redeem the balance of the shares which the Corporation has become obligated to
redeem on any Scheduled Redemption Date but which it has not redeemed.

              (iii) Notice of Redemption. Except as otherwise provided herein,
the Corporation shall mail written notice of each redemption of the Series
Preferred to each record holder thereof not more than 60 nor less than 30 days
prior to the Scheduled Redemption Date (the "Corporation's Notice"). Any holder
of the Series Preferred may elect not to participate in the redemption on any
Scheduled Redemption Date by providing written notice to the Corporation of its
election not to have its shares of Preferred Stock redeemed within 10 days after
receipt of the Corporation's Notice. The holders of the Series Preferred to be
redeemed shall in any event have the right to convert any or all of their shares
into Common Stock at any time prior to the close of business on any Scheduled
Redemption Date. In case fewer than the total number of shares represented by
any certificate are redeemed, a new certificate representing the number of
unredeemed shares shall be issued to the holder thereof without cost to such

                                       6
<PAGE>   40

holder within five business days after surrender of the certificate representing
the redeemed shares.

              (iv) Other Redemptions or Acquisitions. The Corporation shall not,
nor shall it permit any Subsidiary to, redeem or otherwise acquire any shares of
the Series Preferred, except as expressly authorized herein or pursuant to a
purchase offer made pro rata to all holders of the Series Preferred on the basis
of the aggregate Liquidation Value of the shares of the Series Preferred owned
by each such holder. If the assets of the Corporation shall be insufficient to
make payment in full to all holders whose shares of Series Preferred are being
redeemed or otherwise acquired, such assets shall be used first to redeem shares
of Series B/B-1 Preferred, ratably in proportion to the redemption price for the
shares that such holders otherwise would have been entitled to redeem, and
second, any remaining assets shall be used to redeem shares of Series A
Preferred, ratably in proportion to the redemption price for the shares that
such holders otherwise would have been entitled to redeem.

          (e)  CONVERSION RIGHTS - CONVERSION OF SERIES PREFERRED INTO COMMON
STOCK.

     The holders of the Series Preferred shall have the following rights with
respect to the conversion of the Series Preferred into shares of Common Stock:

               (i) Optional Conversion into Common Stock. Subject to and in
compliance with the provisions of this Section 4.2(e), any shares of the Series
Preferred may, at the option of the holder, be converted at any time into
fully-paid and nonassessable shares of Common Stock (either Voting Common Stock,
in the case of Series A Preferred or Series B Preferred, or Non-Voting Common
Stock, in the case of Series B-1 Preferred). The number of shares of Common
Stock to which a holder of the Series A Preferred shall be entitled upon
conversion shall be the product obtained by multiplying the "Series A Conversion
Rate" then in effect (determined as provided in Section 4.2(e)(ii)) by the
number of shares of the Series A Preferred being converted. The number of shares
of Common Stock to which a holder of the Series B/B-1 Preferred shall be
entitled upon conversion shall be the product obtained by multiplying the
"Series B/B-1 Conversion Rate" then in effect (determined as provided in Section
4.2(e)(ii)) by the number of shares of the Series B/B-1 Preferred being
converted.

               (ii) Series Conversion Rate. The conversion rate in effect at any
time for conversion of the Series A Preferred (the "Series A Conversion Rate")
shall be the quotient obtained by dividing the Series A Liquidation Value by the
"Series A Conversion Price" calculated as provided in Section 4.2(e)(iii). The
conversion rate in effect at any time for conversion of the Series B/B-1
Preferred (the "Series B/B-1 Conversion Rate") shall be the quotient obtained by
dividing the Series B/B-1 Liquidation Value by the "Series B/B-1 Conversion
Price" calculated as provided in Section 4.2(e)(iii).


                                       7
<PAGE>   41

               (iii) Conversion Price. The conversion price for the Series A
Preferred (the "Series A Conversion Price") shall initially be the Original
Series A Issue Price (i.e., $3.00). Such initial Series A Conversion Price shall
be adjusted from time to time in accordance with this Section 4.2(e). If and
whenever on or after the first date of issuance of any shares of Series A
Preferred (the "Original Series A Issue Date") the Corporation issues or sells,
or in accordance with this Section 4.2(e)(iii) is deemed to have issued or sold,
any shares of its Common Stock (other than pursuant to a Permitted Issuance) for
a consideration per share less than the Series A Conversion Price in effect
immediately prior to the time of such issue or sale, then immediately upon such
issue or sale or deemed issue or sale the Series A Conversion Price shall be
reduced to the amount determined by dividing (a) the sum of (1) the product
derived by multiplying the Series A Conversion Price in effect immediately prior
to such issue or sale by the number of shares of Common Stock Deemed Outstanding
immediately prior to such issue or sale, plus (2) the consideration, if any,
received or deemed to have been received by the Corporation upon such issue or
sale, by (b) the number of shares of Common Stock Deemed Outstanding immediately
after such issue or sale. All references to the Series A Conversion Price herein
shall mean the Series A Conversion Price as so adjusted.

     The conversion price for the Series B/B-1 Preferred (the "Series B/B-1
Conversion Price") shall initially be the Original Series B/B-1 Issue Price
(i.e., $6.00). Such initial Series B/B-1 Conversion Price shall be adjusted from
time to time in accordance with this Section 4.2(e). Except with respect to
Defaulting Purchasers (as defined in Section 4.2 (e)(ix) below) for whom the
Series B/B-1 Conversion Price shall be as set forth in Section 4.2(e)(ix) below,
if and whenever on or after the first date of issuance of any shares of Series
B/B-1 Preferred (the "Original Series B/B-1 Issue Date") the Corporation issues
or sells, or in accordance with this Section 4.2(e)(iii) is deemed to have
issued or sold, any shares of its Common Stock (other than pursuant to a
Permitted Issuance) for a consideration per share less than the Series B/B-1
Conversion Price in effect immediately prior to the time of such issue or sale,
then immediately upon such issue or sale or deemed issue or sale the Series
B/B-1 Conversion Price shall be reduced to the amount determined by dividing (a)
the sum of (1) the product derived by multiplying the Series B/B-1 Conversion
Price in effect immediately prior to such issue or sale by the number of shares
of Common Stock Deemed Outstanding immediately prior to such issue or sale, plus
(2) the consideration, if any, received or deemed to have been received by the
Corporation upon such issue or sale, by (b) the number of shares of Common Stock
Deemed Outstanding immediately after such issue or sale. All references to the
Series B/B-1 Conversion Price herein shall mean the Series B/B-1 Conversion
Price as adjusted pursuant to this Section 4.2(e)(iii) and Section 4.2 (e)(ix)
below.

     For purposes of determining the adjusted Series A Conversion Price for any
holder of Series Preferred and/or the adjusted Series B/B-1 Conversion Price for
any holder of Series Preferred except for a Defaulting Purchaser, the following
shall be applicable:


                                       8
<PAGE>   42


                    (A) Issuance of Rights or Options. Except for Permitted
Issuances, if the Corporation in any manner grants or sells any Options and the
price per share for which Common Stock is issuable upon the exercise of such
Options, or upon conversion or exchange of any Convertible Securities issuable
upon exercise of such Options, is less than the Series A Conversion Price and/or
the Series B/B-1 Conversion Price, as the case may be, in effect immediately
prior to the time of the granting or sale of such Options, then the total
maximum number of shares of Common Stock issuable upon the exercise of such
Options or upon conversion or exchange of the total maximum amount of such
Convertible Securities issuable upon the exercise of such Options shall be
deemed to have been issued and sold by the Corporation at the time of the
granting or sale of such Options for such price per share. For purposes of this
paragraph, the "price per share for which Common Stock is issuable" shall be
determined by dividing (1) the total amount, if any, received or receivable by
the Corporation as consideration for the granting or sale of such Options, plus
the minimum aggregate amount of additional consideration payable to the
Corporation upon exercise of all such Options, plus in the case of such Options
which relate to Convertible Securities, the minimum aggregate amount of
additional consideration, if any, payable to the Corporation upon the issuance
or sale of such Convertible Securities and the conversion or exchange thereof,
by (2) the total maximum number of shares of Common Stock issuable upon the
exercise of such Options or upon the conversion or exchange of all such
Convertible Securities issuable upon the exercise of such Options. No further
adjustment of the Series A Conversion Price and/or the Series B/B-1 Conversion
Price shall be made when Convertible Securities are actually issued upon the
exercise of such Options or when Common Stock is actually issued upon the
exercise of such Options or the conversion or exchange of such Convertible
Securities.

                    (B) Issuance of Convertible Securities. If the Corporation
in any manner issues or sells any Convertible Securities and the price per share
for which Common Stock is issuable upon conversion or exchange thereof is less
than the Series A Conversion Price and/or the Series B/B-1 Conversion Price, as
the case may be, in effect immediately prior to the time of such issue or sale,
then the maximum number of shares of Common Stock issuable upon conversion or
exchange of such Convertible Securities shall be deemed to have been issued and
sold by the Corporation at the time of the issuance or sale of such Convertible
Securities for such price per share. For the purposes of this paragraph, the
"price per share for which Common Stock is issuable" shall be determined by
dividing (1) the total amount received or receivable by the Corporation as
consideration for the issue or sale of such Convertible Securities, plus the
minimum aggregate amount of additional consideration, if any, payable to the
Corporation upon the conversion or exchange thereof, by (2) the total maximum
number of shares of Common Stock issuable upon the conversion or exchange of all
such Convertible Securities. No further adjustment of the Series A Conversion
Price and/or the Series B/B-1 Conversion Price, as the case may be, shall be
made when Common Stock is actually issued upon the conversion or exchange of
such Convertible Securities, and if any such issue or sale of such Convertible
Securities is made upon exercise of any Options for which adjustments of the
Series A Conversion Price and/or


                                       9
<PAGE>   43

the Series B/B-1 Conversion Price had been or are to be made pursuant to other
provisions of this Section 4.2(e), no further adjustment of the Series A
Conversion Price and/or the Series B/B-1 Conversion Price shall be made by
reason of such issue or sale.

                    (C) Change in Option Price or Conversion Rate. If the
purchase price provided for in any Options, the additional consideration, if
any, payable upon the conversion or exchange of any Convertible Securities or
the rate at which any Convertible Securities are convertible into or
exchangeable for Common Stock changes at any time, the Series A Conversion Price
and/or the Series B/B-1 Conversion Price, as the case may be, in effect at the
time of such change shall be immediately adjusted to the Series A Conversion
Price and/or the Series B/B-1 Conversion Price which would have been in effect
at such time had such Options or Convertible Securities still outstanding
provided for such changed purchase price, additional consideration or conversion
rate, as the case may be, at the time initially granted, issued or sold.

                    (D) Treatment of Expired Options and Unexercised Convertible
Securities. Upon the expiration of any Option or the termination of any right to
convert or exchange any Convertible Security without the exercise of any such
Option or right, the Series A Conversion Price and/or the Series B/B-1
Conversion Price then in effect hereunder shall be adjusted immediately to the
Series A Conversion Price and/or the Series B/B-1 Conversion Price which would
have been in effect at the time of such expiration or termination had such
Option or Convertible Security, to the extent outstanding immediately prior to
such expiration or termination, never been issued.

                    (E) Calculation of Consideration Received. If any Common
Stock, Option or Convertible Security is issued or sold or deemed to have been
issued or sold for cash, the consideration received therefor shall be deemed to
be the amount received by the Corporation therefor (net of discounts,
commissions and related expenses). If any Common Stock, Option or Convertible
Security is issued or sold for a consideration other than cash, the amount of
the consideration other than cash received by the Corporation shall be the fair
value of such consideration. If any Common Stock, Option or Convertible Security
is issued to the owners of the non-surviving entity in connection with any
merger in which the Corporation is the surviving corporation, the amount of
consideration therefor shall be deemed to be the fair value of such portion of
the net assets and business of the non-surviving entity as is attributable to
such Common Stock, Option or Convertible Security, as the case may be. The fair
value of any consideration other than cash and securities shall be determined
jointly by the Corporation and the Required Holders. If such parties are unable
to reach agreement within a reasonable period of time, the fair value of such
consideration shall be determined by an independent appraiser experienced in
valuing such type of consideration jointly selected by the Corporation and the
Required Holders. The determination of such appraiser shall be final and binding
upon the parties, and the fees and expenses of such appraiser shall be borne by
the Corporation.

                    (F) Integrated Transactions. In case any Option is issued in
connection with the issue or sale of other securities of the Corporation,
together


                                       10
<PAGE>   44

comprising one integrated transaction in which no specific consideration is
allocated to such Option by the parties thereto, the Option shall be deemed to
have been issued for a consideration of $.01.

                    (G) Treasury Shares. The number of shares of Common Stock
outstanding at any given time shall not include shares owned or held by or for
the account of the Corporation or any Subsidiary, and the disposition of any
shares so owned or held shall be considered an issue or sale of Common Stock.

               (iv) Adjustment for Stock Splits and Combinations. If the
Corporation shall at any time or from time to time effect a subdivision of the
outstanding Common Stock, the Series A Conversion Price and the Series B/B-1
Conversion Price in effect immediately before that subdivision shall be
proportionately decreased. Conversely, if the Corporation shall at any time or
from time to time combine the outstanding shares of Common Stock into a smaller
number of shares, the Series A Conversion Price and the Series B/B-1 Conversion
Price in effect immediately before the combination shall be proportionately
increased. Any adjustment under this Section 4.2(e)(iv) shall become effective
at the close of business on the date the subdivision or combination becomes
effective.

               (v) Adjustment for Common Stock Dividends and Distributions. If
the Corporation at any time or from time to time makes, or fixes a record date
for the determination of holders of Common Stock entitled to receive, a divided
or other distribution payable in additional shares of Common Stock, in each such
event the Series A Conversion Price and the Series B/B-1 Conversion Price that
is then in effect shall be decreased as of the time of such issuance or, in the
event such record date is fixed, as of the close of business on such record
date, by multiplying each of the Series A Conversion Price and the Series B/B-1
Conversion Price then in effect by a fraction (1) the numerator of which is the
total number of shares of Common Stock issued and outstanding immediately prior
to the time of such issuance or the close of business on such record date, and
(2) the denominator of which is the total number of shares of Common Stock
issued and outstanding immediately prior to the time of such issuance or the
close of business on such record date plus the number of shares of Common Stock
issuable in payment of such dividend or distribution; provided, however, that if
such record date is fixed and such dividend is not fully paid or if such
distribution is not fully made on the date fixed therefor, the Series A
Conversion Price and the Series B/B-1 Conversion Price shall be recomputed
accordingly as of the close of business on such record date and thereafter the
Series A Conversion Price and the Series B/B-1 Conversion Price shall be
adjusted pursuant to this Section 4.2(e)(v) to reflect the actual payment of
such dividend or distribution.

               (vi) Adjustments for Other Dividends and Distributions. If the
Corporation at any time or from time to time makes, or fixes a record date for
the determination of holders of Common Stock entitled to receive, a dividend or
other distribution payable in securities of the Corporation other than shares of
Common Stock, in each such event provision shall be made so that the holders of
the Series Preferred


                                       11
<PAGE>   45

shall receive upon conversion thereof, in addition to the number of shares of
Common Stock receivable thereupon, the amount of other securities of the
Corporation which they would have received had their Series Preferred been
converted into Common Stock on the date of such event and had they thereafter,
during the period from the date of such event to and including the conversion
date, retained such securities receivable by them as aforesaid during such
period, subject to all other adjustments called for during such period under
this Section 4.2(e) with respect to the rights of the holders of the Series
Preferred or with respect to such other securities by their terms.

               (vii) Adjustment for Reclassification, Exchange and Substitution.
If at any time or from time to time the Common Stock issuable upon the
conversion of the Series Preferred is changed into the same or a different
number of shares of any class or classes of stock, whether by recapitalization,
reclassification or otherwise (other than a subdivision or combination of shares
or stock dividend or a reorganization, merger, consolidation or sale of assets
provided for elsewhere in this Section 4.2), in any such event each holder of
the Series Preferred shall have the right thereafter to convert such stock into
the kind and amount of stock and other securities and property receivable in
connection with such recapitalization, reclassification or other change by
holders of the maximum number of shares of Common Stock into which such shares
of the Series Preferred could have been converted immediately prior to such
recapitalization, reclassification or change, all subject to further adjustments
as provided herein or with respect to such other securities or property by the
terms thereof.

               (viii) Reorganizations, Mergers, Consolidations or Sales of
Assets. If at any time or from time to time there is a capital reorganization of
the Common Stock (other than a recapitalization, subdivision, combination,
reclassification, exchange or substitution of shares provided for elsewhere in
this Section 4.2), as a part of such capital reorganization, provision shall be
made so that the holders of the Series Preferred shall thereafter be entitled to
receive upon conversion of the Series Preferred the number of shares of stock or
other securities or property of the Corporation to which a holder of the maximum
number of shares of Common Stock deliverable upon conversion would have been
entitled in connection with such capital reorganization, subject to adjustment
in respect of such stock or securities by the terms thereof. In any such case,
appropriate adjustment shall be made in the application of the provisions of
this Section 4.2(e) with respect to the rights of the holders of the Series
Preferred after the capital reorganization to the end that the provisions of
this Section 4.2 (including adjustment of the Series A Conversion Price and the
Series B/B-1 Conversion Price then in effect and the number of shares of Common
Stock issuable upon conversion of the Series Preferred) shall be applicable
after that event and be as nearly equivalent as practicable.

               (ix) Adjustment upon Default under Stock Purchase Agreements.
With respect to the shares of Series B/B-1 Preferred owned by a Defaulting
Purchaser who has not Cured such Default within a 10-day cure period, (as such
terms are defined in Amendment No. 1 to Series B Preferred Stock Purchase
Agreement dated as of December 31, 1999, and in Article 3 of the Follow-On
Series B/B-1 Preferred


                                       12
<PAGE>   46

Stock Purchase Agreement dated December 20, 1999, in each case among the
Corporation and certain purchasers of the Corporation's Series B/B-1 Preferred
(collectively, the "Stock Purchase Agreements")), immediately upon the
expiration of such 10-day cure period, the Series B/B-1 Conversion Price for
such shares in effect immediately prior to such Default shall be increased to an
amount equal to two (2) times the Original Series B/B-1 Issue Price. Once the
Series B/B-1 Conversion Price for such shares of Series B/B-1 Preferred held by
the Defaulting Purchaser is adjusted in accordance with this Section 4.2(e)(ix),
it shall no longer be subject to any other adjustment provided in Section
4.2(e)(iii) of this Certificate of Incorporation. This Section 4.2(e)(ix) shall
not affect the Series B/B-1 Conversion Price for any holder of Series B/B-1
Preferred other than the Defaulting Purchaser, shall not affect the Series A
Conversion Price for shares of Series A Preferred held by the Defaulting
Purchaser, and shall not affect the Series B/B-1 Liquidation Value for any
holder of Series B/B-1 Preferred.

               (x) Certificate of Adjustment. In each case of an adjustment or
readjustment of the Series A Conversion Price and/or the Series B/B-1 Conversion
Price for the number of shares of Common Stock or other securities issuable upon
conversion of the Series Preferred, the Corporation, at its expense, shall
compute such adjustment or readjustment in accordance with the provisions hereof
and prepare a certificate showing such adjustment or readjustment, and shall
mail such certificate, by first class mail, postage prepaid, to each registered
holder of the Series Preferred at the holder's address as shown in the
Corporation's books. The certificate shall set forth such adjustment or
readjustment, showing in detail the facts upon which such adjustment or
readjustment is based, including a statement of (1) the consideration received
or deemed to be received by the Corporation for any additional shares of Common
Stock issued or sold or deemed to have been issued or sold, (2) the Series A
Conversion Price and/or the Series B/B-1 Conversion Price at the time in effect,
(3) the number of additional shares of Common Stock issued or sold or deemed to
have been issued or sold, and (4) the type and amount, if any, of other property
which at the time would be received upon conversion of the Series Preferred.

               (xi) Notices of Record Date. Upon (i) any taking by the
Corporation of a record of the holders of any class of securities for the
purpose of determining the holders thereof who are entitled to receive any
dividend or other distribution, or (ii) any Acquisition (as defined in Section
4.2(c)(iii)(A)) or other capital reorganization of the Corporation, any
reclassification or recapitalization of the capital stock of the Corporation,
any merger or consolidation of the Corporation with or into any other
corporation, any Asset Transfer (as defined in Section 4.2(c)(iii)(B)), or any
voluntary or involuntary dissolution, liquidation or winding up of the
Corporation, the Corporation shall mail to each holder of the Series Preferred
at least twenty (20) days prior to the record date specified therein a notice
specifying (1) the date on which any such record is to be taken for the purpose
of such dividend or distribution and a description of such dividend or
distribution, (2) the date on which any such Acquisition, reorganization,
reclassification, transfer, consolidation, merger, Asset Transfer, dissolution,
liquidation or winding up is expected to become effective, and (3) the date,


                                       13
<PAGE>   47

if any, that is to be fixed for determining the holders of record of Common
Stock (or other securities) that shall be entitled to exchange their shares of
Common Stock (or other securities) for securities or other property deliverable
upon such Acquisition, reorganization, reclassification, transfer,
consolidation, merger, Asset Transfer, dissolution, liquidation or winding up.

               (xii) Automatic Conversion into Common Stock. Each share of the
Series Preferred shall automatically be converted into shares of Common Stock
(Voting Common Stock in the case of Series A Preferred and Series B Preferred,
and Non-Voting Common Stock in the case of Series B-1 Preferred), based on the
then-effective Series A Conversion Price and/or the Series B/B-1 Conversion
Price, as the case may be, immediately upon the closing of a firmly underwritten
public offering pursuant to an effective registration statement under the
Securities Act of 1933, as amended, covering the offer and sale of Common Stock
for the account of the Corporation in which (i) the per share price to the
public is at least $15.00 per share (as adjusted for stock splits,
recapitalizations and the like), and (ii) the gross cash proceeds to the
Corporation (prior to expenses and underwriting commissions) are at least
$50,000,000. Upon such automatic conversion, all declared but unpaid dividends,
if any, shall be paid in accordance with Section 4.2(a).

               (xiii) Mechanics of Conversion.


                    (A) Optional Conversion. Each holder of the Series Preferred
who desires to convert the same into shares of Common Stock pursuant to this
Section 4.2(e) shall surrender the certificate or certificates therefor, duly
endorsed, at the office of the Corporation or any transfer agent for the Series
Preferred, and shall give written notice to the Corporation at such office that
such holder elects to convert the same. Such notice shall state the number of
shares of the Series Preferred being converted. Thereupon, the Corporation shall
promptly issue and deliver at such office to such holder a certificate or
certificates for the number of shares of Common Stock to which such holder is
entitled and shall promptly pay in cash or, to the extent sufficient funds are
not then legally available therefor, in Common Stock (at the Common Stock's fair
market value determined by the Corporation's board of directors as of the date
of such conversion), any declared but unpaid dividends on the shares of the
Series Preferred being converted. Such conversion shall be deemed to have been
made at the close of business on the date of such surrender of the certificate
representing the shares of the Series Preferred to be converted, and the person
entitled to receive the shares of Common Stock issuable upon such conversion
shall be treated for all purposes as the record holder of such shares of Common
Stock on such date.

                    (B) Automatic Conversion. Upon the occurrence of the event
specified in Section 4.2(e)(xii) above, the outstanding shares of the Series
Preferred shall be converted into Common Stock (Voting Common Stock in the case
of Series A Preferred and Series B Preferred, and Non-Voting Common Stock in the
case of Series B-1 Preferred) automatically without any further action by the
holders of such shares and whether or not the certificates representing such
shares are surrendered to the


                                       14
<PAGE>   48

Corporation or its transfer agent; provided, however, that the Corporation shall
not be obligated to issue certificates evidencing the shares of Common Stock
issuable upon such conversion unless the certificates evidencing such shares of
the Series Preferred are either delivered to the Corporation or its transfer
agent as provided below, or the holder notifies the Corporation or its transfer
agent that such certificates have been lost, stolen or destroyed and executes an
agreement satisfactory to the Corporation to indemnify the Corporation from any
loss incurred by it in connection with such certificates. Upon surrender by any
holder of the certificates formerly representing shares of the Series Preferred
at the office of the Corporation or any transfer agent for the Series Preferred,
there shall be issued and delivered to such holder promptly at such office and
in its name as shown on such surrendered certificate or certificates, a
certificate or certificates for the number of shares of Common Stock into which
the shares of the Series Preferred surrendered were convertible on the date on
which such automatic conversion occurred, and the Corporation shall promptly pay
in cash or, at the option of the Corporation, Common Stock (at the Common
Stock's fair market value determined by the Corporation's board of directors as
of the date of such conversion) or, at the option of the Corporation, a
combination of both, all declared but unpaid dividends on the shares of the
Series Preferred being converted. Until surrendered as provided above, each
certificate formerly representing shares of the Series Preferred shall be deemed
for all corporate purposes to represent the number of shares of Common Stock
resulting from such automatic conversion.

               (xiv) Fractional Shares. No fractional shares of Common Stock
shall be issued upon conversion of the Series Preferred. All shares of Common
Stock (including fractions thereof) issuable upon conversion of more than one
share of the Series Preferred by a holder thereof shall be aggregated for
purposes of determination whether the conversion would result in the issuance of
any fractional share. If, after the aforementioned aggregation, the conversion
would result in the issuance of any fractional share, the Corporation shall, in
lieu of issuing any fractional share, pay cash equal to the product of such
fraction multiplied by the Common Stock's fair market value (as determined by
the Corporation's board of directors) on the date of conversion.

          (f)  CONVERSION RIGHTS - CONVERSION OF SERIES B PREFERRED INTO SERIES
B-1 PREFERRED OR VICE-VERSA.

     The holders of Series B/B-1 Preferred shall have the following rights with
respect to the conversion of Series B Preferred into Series B-1 Preferred or
vice-versa:

               (i) Conversion of Series B Preferred into Series B-1 Preferred.
At any Regulated Holder's request at any time (whether in connection with any
action by the Corporation referred to in Section 4.2(f)(ii)(B) or otherwise),
such Regulated Holder shall have the right, upon the occurrence or possible
occurrence of a Regulatory Problem, to convert any number of shares of Series B
Preferred then held by such Regulated Holder into an equal number of shares of
Series B-1 Preferred.

               (ii) Conversion of Series B-1 Preferred into Series B Preferred.


                                       15
<PAGE>   49

                    (A) In connection with the occurrence (or the expected
occurrence as described in Section 4.2(f)(ii)(C) below) of any Conversion Event,
each holder of Series B-1 Preferred shall be entitled to convert into an equal
number of Series B Preferred all of such holder's Series B-1 Preferred being (or
expected to be) distributed, disposed of or sold in connection with such
Conversion Event.

                    (B) A "Conversion Event" shall mean (i) any public offering
or public sale of securities of the Corporation (including a public offering
registered under the Securities Act and a public sale pursuant to Rule 144 of
the Securities Exchange Commission or any similar rule then in force), (ii) any
sale of securities of the Corporation to a person or group of persons (within
the meaning of the U.S. Securities Exchange Act of 1934, as amended (the "1934
Act")) if, after such sale, such person or group of persons in the aggregate
would own or control securities which possess in the aggregate the ordinary
power to elect a majority of the Corporation's board of directors (provided that
such sale has been approved by the Corporation's board of directors or a
committee thereof), (iii) any sale of securities of the Corporation to a person
or group of persons (within the meaning of the 1934 Act) if, after such sale,
such person or group of persons in the aggregate would own or control securities
of the Corporation (excluding any Series B-1 Preferred being converted and
disposed of in connection with such Conversion Event) which possesses in the
aggregate the ordinary power to elect a majority of the Corporation's board of
directors, (iv) any sale of securities of the Corporation to a person or group
of persons (within the meaning of the 1934 Act) if, after such sale, such person
or group of persons would not, in the aggregate, own, control or have the right
to acquire more than two percent (2%) of the outstanding securities of any class
of voting securities of the Corporation, and (v) a merger, consolidation or
similar transaction involving the Corporation if, after such transaction, a
person or group of persons (within the meaning of the 1934 Act) in the aggregate
would own or control securities which possess in the aggregate the ordinary
voting power to elect a majority of the surviving company's directors (provided
that the transaction has been approved by the Corporation's board of directors
or a committee thereof).

                    (C) Each Regulated Holder holding Series B-1 Preferred shall
be entitled to convert Series B-1 Preferred in connection with any Conversion
Event if such Regulated Holder reasonably believes that such Conversion Event
shall be consummated, and a written request for conversion from any Regulated
Holder holding Series B-1 Preferred to the Corporation shall obligate the
Corporation to effect such conversion in a timely manner so as to enable each
such Regulated Holder to participate in such Conversion Event. The Corporation
shall not cancel the Series B-1 Preferred so converted before the tenth day
following such Conversion Event and shall reserve such Series B-1 Preferred
until such tenth day for reissuance in compliance with the next sentence. If any
Series B-1 Preferred are converted into Series B Preferred in connection with a
Conversion Event and such Series B Preferred are not actually distributed,
disposed of or sold pursuant to such Conversion Event, such Series B Preferred
shall be promptly converted back into the same number of Series B-1 Preferred.


                                       16
<PAGE>   50

                    (D) If at any time the Bank Holding Company Act and the
rules and regulations thereunder (the "BHCA Rules") are amended to allow a
holder of Series B-1 Preferred to convert to Series B Preferred, then upon any
Regulated Holder's request, such Regulated Holder shall have the right to
convert shares of Series B-1 Preferred into an equal number of shares of Series
B Preferred to the extent permissible at such time under the BHCA Rules (as
determined by such holder in its sole discretion).

               (iii) Conversion Procedure.


                    (A) Unless otherwise provided in connection with any
conversion, each conversion of Series B-1 Preferred or Series B Preferred, into
Series B Preferred or Series B-1 Preferred, as the case may be, shall be
effected by the surrender of the certificate or certificates representing the
shares to be converted at the principal office of the Corporation at any time
during normal business hours, together with a written notice by the holder of
such shares stating that such holder desires to convert the shares, or a stated
number of the shares, represented by such certificate or certificates into
shares of the other class (and such statement shall obligate the Corporation to
issue such shares). Unless otherwise provided in connection with any conversion,
each conversion shall be deemed to have been effected as of the close of
business on the date on which such certificate or certificates have been
surrendered and such notice has been received, and at such time the rights of
the holder of the converted Series B-1 Preferred and Series B Preferred, as the
case may be, as such holder shall cease and the person or persons in whose name
or names the certificate or certificates for shares of Series B Preferred or
Series B-1 Preferred are to be issued upon such conversion shall be deemed to
have become the holder or holders of record of the Series B Preferred and the
Series B-1 Preferred represented thereby.

                    (B) Promptly after the surrender of certificates and the
receipt of written notice, the Corporation shall issue and deliver in accordance
with the surrendering holder's instructions (i) the certificate or certificates
for the Series B Preferred and the Series B-1 Preferred issuable upon such
conversion and (ii) a certificate representing any Series B-1 Preferred and
Series B Preferred which were represented by the certificate or certificates
delivered to the Corporation in connection with such conversion but which were
not converted.

                    (C) The issuance of certificates for Series B-1 Preferred or
Series B Preferred upon conversion of Series B Preferred or Series B-1
Preferred, respectively, shall be made without charge to the holders of such
shares for any issuance tax in respect thereof or other cost incurred by the
Corporation in connection with such conversion and the related issuance of
Series B Preferred and Series B-1 Preferred, as the case may be.

                    (D) The Corporation has duly authorized, solely for the
purpose of issuance upon the conversion of the Series B-1 Preferred and Series B
Preferred, respectively, such number of Series B Preferred and Series B-1
Preferred, as


                                       17
<PAGE>   51

the case may be issuable upon the conversion of all outstanding Series B-1
Preferred and Series B Preferred, as the case may be. All shares which are so
issuable shall, when issued, be duly and validly issued, fully paid and
nonassessable and free from all taxes, liens and charges. The Corporation shall
take all such actions as may be necessary to ensure that all such shares may be
so issued without violation of any applicable law or governmental regulation or
any requirements of any domestic securities exchange upon which shares may be
listed (except for official notice of issuance which shall be immediately
transmitted by the Corporation upon issuance).

                    (E) The Corporation shall not close its books against the
transfer of Series B-1 Preferred and Series B Preferred in any manner which
would interfere with the timely conversion of any Series B-1 Preferred or Series
B Preferred. The Corporation shall assist and cooperate with any holder of
Series B-1 Preferred and Series B Preferred required to make any governmental
filings or obtain any governmental approval prior to or in connection with any
conversion of Series B-1 Preferred and Series B Preferred hereunder (including,
without limitation, making any filings required to be made by the Corporation).

                    (F) If the Corporation in any manner subdivides or combines
the outstanding Series B-1 Preferred or Series B Preferred, the outstanding
shares of the other class shall be proportionately subdivided or combined in a
similar manner.

          (g)  CONVERSION RIGHTS - CONVERSION OF NON-VOTING COMMON STOCK INTO
VOTING COMMON STOCK AND VICE-VERSA.

     The holders of Common Stock shall have the following rights with respect to
the conversion of Voting Common Stock into Non-Voting Common Stock or
vice-versa:

               (i) Conversion of Voting Common Stock into Non-Voting Common
Stock. At any Regulated Holder's request at any time (whether in connection with
any action by the Corporation referred to in Section 4.2(f)(ii)(B) above or
otherwise), such Regulated Holder shall have the right, upon the occurrence or
possible occurrence of a Regulatory Problem, to convert any number of shares of
Voting Common Stock then held by such Regulated Holder into an equal number of
shares of Non-Voting Common Stock.

               (ii) Conversion of Non-Voting Common Stock into Voting Common
Stock.


                    (A) In connection with the occurrence (or the expected
occurrence as described in Section 4.2(g)(ii)(B) below) of any Conversion Event,
each holder of Non-Voting Common Stock shall be entitled to convert into an
equal number of Voting Common Stock all of such holder's Non-Voting Common Stock
being (or expected to be) distributed, disposed of or sold in connection with
such Conversion Event.


                                       18
<PAGE>   52

                    (B) Each Regulated Holder holding Non-Voting Common Stock
shall be entitled to convert Non-Voting Common Stock in connection with any
Conversion Event if such Regulated Holder reasonably believes that such
Conversion Event shall be consummated, and a written request for conversion from
any Regulated Holder holding Non-Voting Common Stock to the Corporation shall
obligate the Corporation to effect such conversion in a timely manner so as to
enable each such Regulated Holder to participate in such Conversion Event. The
Corporation shall not cancel the Non-Voting Common Stock so converted before the
tenth day following such Conversion Event and shall reserve such Non-Voting
Common Stock until such tenth day for reissuance in compliance with the next
sentence. If any Non-Voting Common Stock are converted into Voting Common Stock
in connection with a Conversion Event and such Voting Common Stock are not
actually distributed, disposed of or sold pursuant to such Conversion Event,
such Voting Common Stock shall be promptly converted back into the same number
of Non-Voting Common Stock.

                    (C) If at any time the BHCA Rules are amended to allow a
holder of Non-Voting Common Stock to convert to Voting Common Stock, then upon
any Regulated Holder's request, such Regulated Holder shall have the right to
convert shares of Non-Voting Common Stock into an equal number of shares of
Voting Common Stock to the extent permissible at such time under the BHCA Rules
(as determined by such holder in its sole discretion).

               (iii) Conversion Procedure.


                    (A) Unless otherwise provided in connection with any
conversion, each conversion of Non-Voting Common Stock or Voting Common Stock,
into Voting Common Stock or Non-Voting Common Stock, as the case may be, shall
be effected by the surrender of the certificate or certificates representing the
shares to be converted at the principal office of the Corporation at any time
during normal business hours, together with a written notice by the holder of
such shares stating that such holder desires to convert the shares, or a stated
number of the shares, represented by such certificate or certificates into
shares of the other class (and such statement shall obligate the Corporation to
issue such shares). Unless otherwise provided in connection with any conversion,
each conversion shall be deemed to have been effected as of the close of
business on the date on which such certificate or certificates have been
surrendered and such notice has been received, and at such time the rights of
the holder of the converted Non-Voting Common Stock and Voting Common Stock, as
the case may be, as such holder shall cease and the person or persons in whose
name or names the certificate or certificates for shares of Voting Common Stock
or Non-Voting Common Stock are to be issued upon such conversion shall be deemed
to have become the holder or holders of record of the Voting Common Stock and
the Non-Voting Common Stock represented thereby.

                    (B) Promptly after the surrender of certificates and the
receipt of written notice, the Corporation shall issue and deliver in accordance
with the surrendering holder's instructions (i) the certificate or certificates
for the Voting


                                       19
<PAGE>   53

Common Stock and the Non-Voting Common Stock issuable upon such conversion and
(ii) a certificate representing any Non-Voting Common Stock and Voting Common
Stock which were represented by the certificate or certificates delivered to the
Corporation in connection with such conversion but which were not converted.

                    (C) The issuance of certificates for Non-Voting Common Stock
or Voting Common Stock upon conversion of Voting Common Stock or Non-Voting
Common Stock, respectively, shall be made without charge to the holders of such
shares for any issuance tax in respect thereof or other cost incurred by the
Corporation in connection with such conversion and the related issuance of
Voting Common Stock and Non-Voting Common Stock, as the case may be.

                    (D) The Corporation has duly authorized, solely for the
purpose of issuance upon the conversion of the Non-Voting Common Stock and
Voting Common Stock, respectively, such number of Voting Common Stock and
Non-Voting Common Stock, as the case may be issuable upon the conversion of all
outstanding Non-Voting Common Stock and Voting Common Stock, as the case may be.
All shares which are so issuable shall, when issued, be duly and validly issued,
fully paid and nonassessable and free from all taxes, liens and charges. The
Corporation shall take all such actions as may be necessary to ensure that all
such shares may be so issued without violation of any applicable law or
governmental regulation or any requirements of any domestic securities exchange
upon which shares may be listed (except for official notice of issuance which
shall be immediately transmitted by the Corporation upon issuance).

                    (E) The Corporation shall not close its books against the
transfer of Non-Voting Common Stock and Voting Common Stock in any manner which
would interfere with the timely conversion of any Non-Voting Common Stock or
Voting Common Stock. The Corporation shall assist and cooperate with any holder
of Non-Voting Common Stock and Voting Common Stock required to make any
governmental filings or obtain any governmental approval prior to or in
connection with any conversion of Non-Voting Common Stock and Voting Common
Stock hereunder (including, without limitation, making any filings required to
be made by the Corporation).

                    (F) If the Corporation in any manner subdivides or combines
the outstanding Non-Voting Common Stock or Voting Common Stock, the outstanding
shares of the other class shall be proportionately subdivided or combined in a
similar manner.

          (h)  CERTAIN DEFINITIONS.

     "COMMON STOCK" means the Voting Common Stock and Non-Voting Common Stock,
par value $.0001 per share, of the Corporation.

     "COMMON STOCK DEEMED OUTSTANDING" means, at any given time, the number of
shares of Common Stock actually outstanding at such time, plus (a) the number of


                                       20
<PAGE>   54

shares of Common Stock which would be issued upon exercise of all of the
Corporation's outstanding Options and (b) the number of shares of Common Stock
which would be issued upon conversion or exchange of all of the Corporation's
outstanding Convertible Securities (including Convertible Securities issuable
upon exercise of Options).

     "CONVERTIBLE SECURITIES" means any stock or securities directly or
indirectly convertible into or exchangeable for Common Stock.

     "OPTIONS" means any rights, warrants or options to subscribe for or
purchase Common Stock or Convertible Securities.

     "PERMITTED ISSUANCE" means any issuance of Reserved Employee Stock.

     "REGULATED HOLDER" means any holder of Preferred Stock or Common Stock who
is regulated under the BHCA Rules.

     "REGULATORY PROBLEM" means any transaction, circumstance or situation
whereby (i) any Regulated Holder and its affiliates would own, control or have
power over a greater quantity of securities of any kind issued by the
Corporation or any other entity than are permitted under any requirement of any
governmental authority, or would cause such Regulated Holder or any of its
affiliates to not be able to hold an investment in or provide financing to the
Corporation in compliance with any applicable requirement of any governmental
authority, or (ii) it has been asserted by any governmental regulatory agency
(or any Regulated Holder believes that there is a risk of such assertion) that
such Regulated Holder and its affiliates are not entitled to hold the shares
held by such Regulated Holder and its affiliate or exercise any significant
right with respect to the shares held by such person or provide financing to the
Corporation in compliance with any applicable requirement of any governmental
authority.

     "RESERVED EMPLOYEE STOCK" means the shares of Common Stock issuable to
employees, directors or consultants of the Corporation and its Subsidiaries
pursuant to options granted under the VeloCom Inc. Amended and Restated 1998
Stock Option Plan, which amount shall in no event exceed twelve percent (12%) of
the Corporation's Common Stock Deemed Outstanding.

     "SUBSIDIARY" means any corporation of which 50% or more of the shares of
outstanding capital stock possessing the voting power (under ordinary
circumstances) in electing the board of directors are, at the time as of which
any determination is being made, owned by the Corporation either directly or
indirectly through Subsidiaries.

          (i)  AMENDMENT AND WAIVER.

     No amendment, modification or waiver of any of the terms or provisions of
the Series Preferred shall be binding or effective without the prior written
consent of the Required Holders and no change in the terms hereof may be
accomplished by merger or consolidation of the Corporation with another
corporation or entity unless the Corporation


                                       21
<PAGE>   55

has obtained the prior written consent of the Required Holders; provided,
however, that no such action shall adversely alter or change any of the rights,
preferences, or privileges of the Series A Preferred without the prior written
consent of the holders of at least 75% of the Series A Preferred then
outstanding; and provided, further, than no such action shall adversely alter or
change any of the rights, preferences or privileges of the Series B/B-1
Preferred without the prior written consent of at least 75% of the Series B/B-1
Preferred then outstanding. Any amendment, modification or waiver of any of the
terms or provisions of the Series Preferred by the Required Holders (or such
higher vote as may be required), whether prospective or retroactively effective,
shall be binding upon all holders of the Series Preferred.

          (j)  GENERAL PROVISIONS.

               (i) Registration of Transfer. The Corporation shall keep at its
principal office a register for the registration of the Series Preferred. Upon
the surrender of any certificate representing the Series Preferred at such
place, the Corporation shall, at the request of the record holder of such
certificate, execute and deliver (at the Corporation's expense) a new
certificate or certificates in exchange therefor representing in the aggregate
the number of shares represented by the surrendered certificate. Each such new
certificate shall be registered in such name and shall represent such number of
shares as is requested by the holder of the surrendered certificate and shall be
substantially identical in form to the surrendered certificate.

               (ii) Replacement. Upon receipt of evidence reasonably
satisfactory to the Corporation (an affidavit of the registered holder shall be
satisfactory) of the ownership and the loss, theft, destruction or mutilation of
any certificate evidencing shares of the Series Preferred, and in the case of
any such loss, theft or destruction, upon receipt of indemnity reasonably
satisfactory to the Corporation (provided, however, that if the holder is a
financial institution or other institutional investor its own agreement shall be
satisfactory), or in the case of any such mutilation upon surrender of such
certificate, the Corporation shall (at its expense) execute and deliver in lieu
of such certificate a new certificate of like kind representing the number of
shares of such class represented by such lost, stolen, destroyed or mutilated
certificate and dated the date of such lost, stolen, destroyed or mutilated
certificate.

               (iii) Reservation of Common Stock Issuable Upon Conversion. The
Corporation shall at all times reserve and keep available out of its authorized
but unissued shares of Common Stock, solely for the purpose of effecting the
conversion of the shares of the Series Preferred, such number of its shares of
Common Stock as shall from time to time be sufficient to effect the conversion
of all outstanding shares of the Series Preferred. If at any time the number of
authorized but unissued shares of Common Stock shall not be sufficient to effect
the conversion of all then-outstanding shares of the Series Preferred, the
Corporation shall take such corporate action as may, in the opinion of its
counsel, be necessary to increase its authorized but unissued shares of Common
Stock to such number of shares as shall be sufficient for such purpose.


                                       22
<PAGE>   56

               (iv) Notices. Any notice required by the provisions of this
Amended and Restated Certificate of Incorporation shall be in writing and shall
be deemed effectively given: (i) upon personal delivery to the party to be
notified, (ii) when sent by confirmed telex or facsimile if sent during normal
business hours of the recipient; if not, then on the next business day, (iii)
five (5) days after having been sent by registered or certified mail, return
receipt requested, postage prepaid, or (iv) one (1) day after deposit with a
nationally recognized overnight courier, specifying next day delivery, with
written verification of receipt. All notices to stockholders shall be addressed
to each holder of record at the address of such holder appearing on the books of
the Corporation.

               (v) Payment of Taxes. The Corporation shall pay all taxes (other
than taxes based upon income) and other governmental charges that may be imposed
with respect to the issue or delivery of shares of Common Stock upon conversion
of shares of the Series Preferred, excluding any tax or other charge imposed in
connection with any transfer involved in the issue and delivery of shares of
Common Stock in a name other than that in which the shares of the Series
Preferred so converted were registered.

               (vi) No Dilution or Impairment. The Corporation shall not amend
its Certificate of Incorporation or participate in any reorganization, transfer
of assets, consolidation, merger, dissolution, issue or sale of securities or
any other voluntary action, for the purpose of avoiding or seeking to avoid the
observance or performance of any of the terms to be observed or performed
hereunder by the Corporation.

               (vii) No Reissuance of the Series Preferred. No share or shares
of the Series Preferred acquired by the Corporation by reason of redemption,
purchase, conversion or otherwise shall be reissued.

                                  ARTICLE FIVE.

     The Corporation is to have perpetual existence.

                                  ARTICLE SIX.

     In furtherance and not in limitation of the powers conferred by statute,
the board of directors of the Corporation is expressly authorized to make, alter
or repeal the Bylaws of the Corporation.

                                 ARTICLE SEVEN.

     The management of the business and the conduct of the affairs of the
Corporation shall be vested in its board of directors. The number of directors
which shall constitute the whole board of directors shall be fixed by, or in the
manner provided in, the Bylaws of the Corporation.


                                       23
<PAGE>   57


                                 ARTICLE EIGHT.

     Meetings of stockholders may be held within or without the State of
Delaware, as the Bylaws of the Corporation may provide. The books of the
Corporation may be kept (subject to any provision contained in the statutes)
outside the State of Delaware at such place or places as may be designated from
time to time by the board of directors or in the Bylaws of the Corporation.
Election of directors need not be by written ballot unless the Bylaws of the
Corporation so provide.

                                  ARTICLE NINE.

     The Corporation shall indemnify, to the fullest extent permitted by Section
145 of the Delaware General Corporation Law, as amended from time to time, all
persons who it may indemnify pursuant thereto. The personal liability of a
director of the Corporation to the Corporation or its stockholders for monetary
damages for breach of fiduciary duty as a director shall be limited to the
fullest extent permitted by the Delaware General Corporation Law, as it now
exists or may hereafter be amended. Any repeal or modification of this paragraph
by the stockholders of the Corporation shall not adversely affect any right or
protection of a director of the Corporation existing at the time of such repeal
or modification.

                                  ARTICLE TEN.

     The Corporation expressly elects not to be governed by Section 203 of the
Delaware General Corporation Law.

                                 ARTICLE ELEVEN.

     The Corporation reserves the right to amend, alter, change or repeal any
provision contained in this Amended and Restated Certificate of Incorporation in
the manner now or hereafter prescribed herein and by the laws of the State of
Delaware, and all rights conferred upon stockholders herein are granted subject
to this reservation.




                                       24
<PAGE>   58




     IN WITNESS WHEREOF, the Corporation has caused this Second Amended &
Restated Certificate of Incorporation to be signed and executed in its corporate
name by David J. Leonard, its President and Chief Executive Officer, and
attested to by Michael S. Quinn, its Assistant Secretary, and its Corporate Seal
to be affixed on this ___ day of January, 2000.

                                       VELOCOM INC.


                                       By:
                                          -------------------------------------
                                          Name:  David J. Leonard
                                          Title:  President and Chief Executive
                                          Officer
Attest:

--------------------------
Name:  Michael S. Quinn
Title: Assistant Secretary


























                                       25
<PAGE>   59


                 FOLLOW-ON SERIES B/B-1 STOCK PURCHASE AGREEMENT

                                    EXHIBIT C

                              CAPITALIZATION CHART



                                       C-1

<PAGE>   60

VeloCom Inc.
Capitalization Table
December 27, 1999

<TABLE>
<CAPTION>
                                                         Current Capitalization                               Funding 12/6/99
                                         ---------------------------------------------------------------   ------------------------
                                                     Number of Shares                                        Funding       Shares
                                         ----------------------------------------     Total       Fully    -----------  -----------
                                                                                    Investment   Diluted                   $6.00
                                            Common      Preferred        Total        $000's      Own%       $45,942
                                         ------------  ------------   -----------  ------------  -------   -----------  -----------
<S>                                      <C>           <C>            <C>          <C>           <C>       <C>          <C>
INVESTMENT FUNDS
Telecom Partners II, L.P.                   1,500,000     5,605,775     7,105,775  $ 18,317,325    15.52%  $ 4,999,998      833,333
Telecom Partners III, L.P.                          0             0             0  $         --     0.00%  $        --           --
                                         ------------  ------------   -----------  ------------  -------   -----------  -----------
   Total Telecom Partners                   1,500,000     5,605,775     7,105,775    18,317,325    15.52%  $ 4,999,998      833,333
Centennial Fund V, L.P.                       932,600     4,186,631     5,119,231  $ 13,492,493    11.18%  $ 1,500,000      250,000
Centennial Fund VI, L.P.                            0             0             0  $         --     0.00%  $ 7,858,854    1,309,809
Centennial Entrepreneurs Fund V, L.P.          28,940       129,918       158,858  $    418,694     0.35%  $        --           --
Centennial Entrepreneurs Fund VI, L.P.             --            --            --  $         --     0.00%  $   196,470       32,745
Centennial Strategic Partners
   Fund VI, L.P.                                   --            --            --  $         --     0.00%  $        --           --
Centennial Holdings I, L.L.C.                  38,460       172,655       211,115  $    558,425     0.46%  $   219,036       36,506
                                         ------------  ------------  ------------  ------------  -------   -----------  -----------
   Total Centennial Funds                   1,000,000     4,489,204     5,489,204    14,467,612    11.99%  $ 9,774,360    1,629,060
Eagle Ventures WF, L.L.C.(Crescendo)           22,850        57,460        80,310  $    195,230     0.18%  $    30,074        5,079
Crescendo III, GbP.                                 0             0             0  $         --     0.00%  $    78,354       13,059
Crescendo III Executive Fund, LP                    0             0             0  $         --     0.00%  $   112,860       18,810
Crescendo World Fund, L.L.C.                  477,150     1,199,883     1,677,033  $  4,076,799     3.66%  $   636,198      106,033
Crescendo III, L.P.                                 0     3,514,683     3,514,683  $ 10,544,049     7.88%  $ 3,799,998      633,333
                                         ------------  ------------  ------------  ------------  -------   -----------  -----------
   Total Crescendo Ventures                   500,000     4,772,026     5,272,026    14,816,078    11.51%  $ 4,657,884      776,314
SLI Wireless S.A.                           4,330,709     7,840,000    12,170,709  $ 34,520,001    26.58%  $ 9,000,000    1,500,000
Formus Common - LA Holdings, LLC            1,574,803     7,866,333     9,441,136  $ 27,598,999    20.62%  $ 5,599,998      933,333
Taquari Participatoes S.A.                  1,035,054             0     1,035,064  $  2,629,063     2.28%  $        --           --
Black Coral Enterprises Inc. (Taquari)        638,164             0       638,164  $  1,620,937     1.39%  $        --           --
                                         ------------  ------------  ------------  ------------  -------   -----------  -----------
   Total Taquari                            1,673,220             0     1,673,228     4,249,999     3.65%  $        --           --

                                         ------------  ------------  ------------  ------------  -------   -----------  -----------
TOTAL INVESTMENT FUNDS                     10,578,740    30,573,338  $ 41,152,078  $113,970,014    89.87%  $34,032,240    5,672,040

NEW INVESTORS:
     Janco Capital Management                      --            --            --  $         --        0%  $   250,002       41,667
     Brad Peery Capital, L.P.                      --            --            --  $         --        0%  $   155,100       25,050
     Brad Peery Capital Ventures, L.P.             --            --            --  $         --        0%  $   131,400       21,900
     Brad Peery Capital International              --            --            --  $         --        0%  $   101,400       16,900
     Brad Peery Capital, Inc.                      --            --            --  $         --        0%  $    12,300        2,050
     Mellon Ventures II, L.P.                      --            --            --  $         --        0%  $10,000,002    1,666,667
     Bank of America                               --            --            --  $         --        0%  $        --           --
     Qualcomm Incorporated                         --            --            --  $         --        0%  $        --           --
     Chestnut Hill VeloCom, LLC                    --            --            --  $         --        0%  $        --           --
     Dolphin Communications Fund, LP               --            --            --  $         --        0%  $        --           --
     Dolphin Communications
        Parallel Fund, LP                          --            --            --  $         --        0%  $        --           --
     First Union                                   --            --            --  $         --        0%  $        --           --
     Toronto Dominion Investments, Inc.            --            --            --  $         --        0%  $        --           --
     CRI Media Partners, LP                        --            --            --  $         --        0%  $        --           --
     CRI Media Partners II, LP                     --            --            --  $         --        0%  $        --           --
     Northwood Ventures LLC                        --            --            --  $         --        0%  $        --           --
     Aleks Aermovic                                --            --            --  $         --        0%  $        --           --
     Orkin R Jacobson                              --            --            --  $         --        0%  $        --           --
     Ravi Mhattre                                  --            --            --  $         --        0%  $        --           --
     TD Securities (USA), Inc.                     --            --            --  $         --        0%  $        --           --

                                         ------------  ------------  ------------  ------------  -------   -----------  -----------
   SUBTOTAL:  NEW INVESTORS                        --            --            --  $         --       --   $10,650,204    1,775,034

MANAGEMENT & DIRECTORS
Fred A. Vierra                                100,000        37,531       137,531  $    212,593     0.30%  $   250,002       41,667
Nicholas Kauser                               100,000        37,531       137,531  $    212,593     0.30%  $    49,998        8,333
David J. Leonard                              118,615        18,615       137,230  $    242,940     0.30%  $    49,998        8,333
Barry Rowan                                    83,333             0        83,333  $    249,999     0.18%  $    49,998        8,333
Robert McKenzie                                50,000        18,766        68,766  $    106,298     0.15%  $    75,000       12,500
Comm Capital Ptns Inc/ Barney Schotters        50,000             0        50,000  $    150,000     0.11%  $   750,000      125,000
Gregory P. Sadler                              25,000         9,383        34,383  $     53,149     0.08%  $    19,998        3,333
R. Dwayne House                                25,000         9,307        34,307  $     84,171     0.07%  $        --           --
Reinco (John Gowen)                            25,000             0        25,000  $     56,250     0.05%  $        --           --
Michael Quinn                                  25,000             0        25,000  $     75,000     0.05%  $        --           --
Brad Johnson                                   25,000             0        25,000  $     56,250     0.05%  $    15,000        2,500
David Tomzuka                                  25,000             0        25,000  $     75,000     0.05%  $        --           --
                                         ------------  ------------  ------------  ------------  -------   -----------  -----------
TOTAL MANAGEMENT & DIRECTORS                  651,946       131,133       783,081  $  1,574,243     1.71%  $ 1,259,994      209,999

                                         ------------  ------------  ------------  ------------  -------   -----------  -----------
TOTAL FUNDS AND MANAGEMENT                 11,230,688    30,704,471    41,935,159  $115,544,257    91.58%  $45,942,438    7,657,073
TOTAL OTHER SHAREHOLDERS                       53,138         1,862        55,000  $    149,414     0.12%  $        --           --
                                         ------------  ------------  ------------  ------------  -------   -----------  -----------
TOTAL SHARES OUTSTANDING                   11,283,826    30,706,333    41,990,159  $115,693.671    91.70%  $45,942,438    7,657,073
                                         ------------  ------------
STOCK OPTIONS                                                           3,798,544            --     8.30%  $        --    7,609,205
                                                                     ------------  ------------  -------   -----------  -----------
FULLY DILUTED SHARES OUTSTANDING                                       45,788,703  $115,693,671   100.00%  $45,942,438   15,266,278

Implied Valuation                         per share                                  Pre-Money               Current
                                                                                                              Round
                                           $6.00                                   $    274,732            $    91.598
</TABLE>



a) 948,913 of these shares represent voting series B preferred stock, which will
   represent 4.9159% of the total outstanding shares of voting series B
   preferred stock immediately following the January 7, 2000 funding.




<PAGE>   61

VeloCom Inc.
Capitalization Table
December 27, 1999 (continued)


<TABLE>
<CAPTION>
                                                To Be Funded 01/07/00           Funded 6/30/00
                                              -------------------------   -------------------------
                                                Funding       Shares        Funding       Shares
                                              -------------------------   -------------------------
                                                               $6.00                       $6.00
                                                $82,058                     $61,000
                                              -----------   -----------   -----------   -----------
<S>                                           <C>           <C>           <C>           <C>
INVESTMENT FUNDS
Telecom Partners II, L.P.                     $        --            --   $        --            --
Telecom Partners III, L.P.                    $19,999,998     3,333,333   $10,000,002     1,666,667
                                              -----------                               -----------
   Total Telecom Partners                     $19,999,998     3,333,333   $10,000,002     1,666,667
Centennial Fund V, L.P.                       $        --            --   $   750,000       125,000
Centennial Fund VI, L.P.                      $        --            --   $ 3,570,576       595,096
Centennial Entrepreneurs Fund V, L.P.         $        --            --   $        --            --
Centennial Entrepreneurs Fund VI, L.P.        $        --            --   $    89,265        14,878
Centennial Strategic Partners Fund VI, L.P.   $        --            --   $   375,000        62,500
Centennial Holdings I, L.L.C.                 $        --            --   $   102,342        17,057
                                                                          -----------   -----------
   Total Centennial Funds                     $        --            --   $ 4,867,186       814,531
Eagle Ventures WF, L.L.C.(Crescendo)          $    15,228         2,538   $    22,654         3,809
Crescendo III, GbP.                           $    68,880        11,480   $    73,620        12,270
Crescendo III Executive Fund, LP              $    99,222        16,537   $   106,038        17,673
Crescendo World Fund, L.L.C.                  $   318,102        53,017   $   477,150        79,525
Crescendo III, L.P.                           $ 3,340,692       556,782   $ 3,570,348       595,058
                                              -----------   -----------   -----------   -----------
   Total Crescendo Ventures                   $ 3,642,124       640,354   $ 4,250,010       708,335
SLI Wireless S.A.                             $ 5,500,002       916,667   $ 7,249,998     1,208,333
Formus Common - LA Holdings, LLC              $        --            --   $ 2,800,002       466,667
Taquari Participatoes S.A.                    $        --            --   $        --            --
Black Coral Enterprises Inc. (Taquari)        $        --            --   $        --            --
                                              -----------                 -----------   -----------
   Total Taquari                              $        --            --   $        --            --

                                                                          -----------   -----------
TOTAL INVESTMENT FUNDS                        $29,342,124     4,890,354   $29,187,198     4,864,533

NEW INVESTORS:
     Janco Capital Management                 $        --            --   $   125,004        20,834
     Brad Peery Capital, L.P.                 $        --            --   $    77,550        12,925
     Brad Peery Capital Ventures, L.P.        $        --            --   $    65,700        10,950
     Brad Peery Capital International         $        --            --   $    50,700         8,450
     Brad Peery Capital, Inc.                 $        --            --   $     6,150         1,025
     Mellon Ventures II, L.P.                 $        --            --   $ 5,000,004       833,334
     Bank of America                          $17,500,002     2,918,667   $ 8,749,998     1,458,333
     Qualcomm Incorporated                    $ 7,500,000     1,250,000   $ 3,750,000       625,000
     Chestnut Hill VeloCom, LLC               $10,350,000     1,725,000   $ 5,175,000       862,500
     Dolphin Communications Fund, LP          $ 1,758,840       293,140   $   879,420       146,570
     Dolphin Communications Parallel
        Fund, LP                              $   741,162       123,527   $   370,578        61,763
     First Union                              $ 9,572,934     1,595,489   $ 4,786,470       797,745
     Toronto Dominion Investments, Inc.       $ 3,499,992       583,333   $ 1,750,002       291,667
     CRI Media Partners, LP                   $    79,995        13,333   $    40,002         6,667
     CRI Media Partners II, LP                $   319,998        53,333   $   160,002        28,667
     Northwood Ventures LLC                   $   750,000       125,000   $   375,000        62,500
     Aleks Aermovic                           $    49,998         8,333   $    25,002         4,167
     Orkin R Jacobson                         $    30,000         5,000   $    15,000         2,500
     Ravi Mhattre                             $    37,500         6,250   $    18,750         3,125
     TD Securities (USA), Inc.                $   150,000        25,000   $    75,000        12,500
                                              $        --   $        --   $        --            --
                                              -----------   -----------   -----------   -----------
   SUBTOTAL:  NEW INVESTORS                   $52,340,430     8,723,405   $31,495,332     5,249,222

MANAGEMENT & DIRECTORS
Fred A. Vierra                                $        --            --   $        --            --
Nicholas Kauser                               $        --            --   $    25,002         4,167
David J. Leonard                              $        --            --   $    25,002         4,167
Barry Rowan                                   $        --            --   $    25,002         4,167
Robert McKenzie                               $        --            --   $    37,500         6,250
Comm Capital Ptns Inc/ Barney Schotters       $        --            --   $   375,000        62,500
Gregory P. Sadler                             $        --            --   $    10,002         1,667
R. Dwayne House                               $        --            --   $        --            --
Reinco (John Gowen)                           $        --            --   $        --            --
Michael Quinn                                 $        --            --   $        --            --
Brad Johnson                                  $        --            --   $     7,500         1,250
David Tomazuka                                $        --            --   $        --            --
                                              -----------                 -----------   -----------
TOTAL MANAGEMENT & DIRECTORS                  $        --            --   $   505,008        84,168
                                                                          $        --   $        --
                                              -----------   -----------   -----------   -----------
TOTAL FUNDS AND MANAGEMENT                    $81,682,554    13,613,759   $61,187,538    10,197,923
TOTAL OTHER SHAREHOLDERS                      $        --            --   $        --            --
                                              -----------                 -----------   -----------
TOTAL SHARES OUTSTANDING                      $81,682,554    13,613,759   $61,187,538    10,197,923
                                                                          -----------   -----------
STOCK OPTIONS                                 $        --            --   $        --            --
                                              -----------   -----------   -----------   -----------
FULLY DILUTED SHARES OUTSTANDING               81,682,554    13,613,758   $61,187,538    10,197,923

Implied Valuation                           Current Round                 Current Round
                                              $    81,683                 $    61,188
</TABLE>



a) 948,913 of these shares represent voting series B preferred stock, which will
   represent 4.9159% of the total outstanding shares of voting series B
   preferred stock immediately following the January 7, 2000 funding.

                                       2
<PAGE>   62


VeloCom Inc.
Capitalization Table
December 27, 1999 (continued)


<TABLE>
<CAPTION>
                                                  To Be Funded 09/30/00        Total Current Round
                                              ---------------------------   ---------------------------
                                                Funding       Shares          Funding        Shares
                                              ---------------------------   ---------------------------
                                                                $6.00                         $6.00
                                                $61,000                      $250,000
                                              ------------   ------------   ------------   ------------
<S>                                           <C>            <C>            <C>            <C>
INVESTMENT FUNDS
Telecom Partners II, L.P.                     $         --             --   $  4,999,998        833,333
Telecom Partners III, L.P.                    $ 10,000,002      1,666,667   $ 40,000,002      6,656,667
                                              ------------   ------------   ------------   ------------
   Total Telecom Partners                     $ 10,000,002      1,666,667   $ 45,000,000      7,500,000
Centennial Fund V, L.P.                       $    750,000        125,000   $  3,000,000        500,000
Centennial Fund VI, L.P.                      $  3,570,570        595,095   $ 15,000,000      2,500,000
Centennial Entrepreneurs Fund V, L.P.         $         --             --   $         --             --
Centennial Entrepreneurs Fund VI, L.P.        $     89,262         14,877   $    375,000         62,500
Centennial Strategic Partners Fund VI, L.P.   $    375,000         62,500   $    750,000        125,000
Centennial Holdings I, L.L.C.                 $    102,342         17,057   $    423,720         70,620
                                              ------------   ------------   ------------   ------------
   Total Centennial Funds                     $  4,887,174        814,529   $ 19,548,720      3,258,120
Eagle Ventures WF, L.L.C.(Crescendo)          $     22,848          3,808   $     91,404         15,234
Crescendo III, GbP.                           $     73,614         12,269   $    294,468         49,078
Crescendo III Executive Fund, LP              $    106,038         17,673   $    424,158         70,693
Crescendo World Fund, L.L.C.                  $    477,150         79,525   $  1,908,600        318,100
Crescendo III, L.P.                           $  3,570,342        595,057   $ 14,281,380      2,380,230
                                              ------------   ------------   ------------   ------------
   Total Crescendo Ventures                   $  4,249,992        708,332   $ 17,000,010      2,833,335
SLI Wireless S.A.                             $  7,249,998      1,208,333   $ 28,999,998      4,833,333
Formus Common - LA Holdings, LLC              $  2,799,996        466,666   $ 11,199,996      1,886,666
Taquari Participatoes S.A.                    $         --             --   $         --             --
Black Coral Enterprises Inc. (Taquari)        $         --             --   $         --             --
                                              ------------   ------------   ------------   ------------
   Total Taquari                              $         --             --   $         --             --

                                              ------------   ------------   ------------   ------------
TOTAL INVESTMENT FUNDS                        $ 29,187,162      4,884,527   $121,748,724     20,291,454

NEW INVESTORS:
     Janco Capital Management                 $    124,998         20,833   $    500,004         83,334
     Brad Peery Capital, L.P.                 $     77,550         12,925   $    310,200         51,700
     Brad Peery Capital Ventures, L.P.        $     65,700         10,950   $    262,800         43,800
     Brad Peery Capital International         $     50,700          8,450   $    202,800         33,800
     Brad Peery Capital, Inc.                 $      6,150          1,025   $     24,600          4,100
     Mellon Ventures II, L.P.                 $  4,999,998        833,333   $ 20,000,004      3,333,334
     Bank of America                          $  8,749,998      1,458,333   $ 34,999,996      5,833,333
     Qualcomm Incorporated                    $  3,750,000        625,000   $ 15,000,000      2,500,000
     Chestnut Hill VeloCom, LLC               $  5,175,000        862,500   $ 20,700,000      3,450,000
     Dolphin Communications Fund, LP          $    879,420        146,570   $  3,517,680        586,280
     Dolphin Communications Parallel
        Fund, LP                              $    370,578         61,763   $  1,462,318        247,053
     First Union                              $  4,786,470        797,745   $ 19,145,874      3,190,979
     Toronto Dominion Investments, Inc.       $  1,750,002        291,667   $  7,000,002      1,166,667
     CRI Media Partners, LP                   $     40,002          6,667   $    160,002         26,667
     CRI Media Partners II, LP                $    160,002         26,667   $    640,002        106,667
     Northwood Ventures LLC                   $    375,000         62,500   $  1,500,000        250,000
     Aleks Aermovic                           $     25,002          4,167   $    100,002         16,667
     Orkin R Jacobson                         $     15,000          2,500   $     60,000         10,000
     Ravi Mhattre                             $     18,750          3,125   $     75,000         12,500
     TD Securities (USA), Inc.                $     75,000         12,500   $    300,000         50,000
                                              $         --             --   $         --             --
                                              ------------   ------------   ------------   ------------
   SUBTOTAL:  NEW INVESTORS                   $ 31,495,320      5,249,220   $125,981,286     20,995,881

MANAGEMENT & DIRECTORS
Fred A. Vierra                                $         --             --   $    250,002         41,667
Nicholas Kauser                               $     24,995          4,166   $     99,996         16,666
David J. Leonard                              $     24,995          4,166   $     99,996         16,666
Barry Rowan                                   $     24,995          4,166   $     99,996         16,666
Robert McKenzie                               $     37,500          6,250   $    150,000         25,000
Comm Capital Ptns Inc/ Barney Schotters       $    375,000         82,500   $  1,500,000        250,000
Gregory P. Sadler                             $      9,996          1,666   $     39,996          6,666
R. Dwayne House                               $         --             --   $         --             --
Reinco (John Gowen)                           $         --             --   $         --             --
Michael Quinn                                 $         --             --   $         --             --
Brad Johnson                                  $      7,500          1,250   $     30,000          5,000
David Tomazuka                                $         --             --   $         --             --
                                              ------------   ------------   ------------   ------------
TOTAL MANAGEMENT & DIRECTORS                  $    504,984         84,164   $  2,289,986        378,331

                                              ------------   ------------   ------------   ------------
TOTAL FUNDS AND MANAGEMENT                    $ 61,187,466     10,197,911   $249,999,996     41,666,666
TOTAL OTHER SHAREHOLDERS                      $         --             --   $         --             --
                                              ------------   ------------   ------------   ------------
TOTAL SHARES OUTSTANDING                      $ 61,187,466     10,197,911   $249,999,996     41,666,666
STOCK OPTIONS                                 $         --             --   $         --      7,609,205
                                              ------------   ------------   ------------   ------------
FULLY DILUTED SHARES OUTSTANDING              $ 61,187,466     10,197,911   $249,999,996     49,275,871

Implied Valuation                            Current Round                  Current Round
                                              $     61,187                  $    295,855
</TABLE>

a) 948,913 of these shares represent voting series B preferred stock, which will
   represent 4.9159% of the total outstanding shares of voting series B
   preferred stock immediately following the January 7, 2000 funding.

                                       3
<PAGE>   63


VeloCom Inc.
Capitalization Table
December 27, 1999 (continued)



<TABLE>
<CAPTION>
                                                                                  Pro Forma
                                        ----------------------------------------------------------------------------------------
                                         Total Investment    Avg. Investment per share   Number of Shares   Fully Diluted Own %
                                        ------------------ ---------------------------- ------------------ ---------------------
<S>                                      <C>               <C>                          <C>                <C>
INVESTMENT FUNDS
Telecom Partners II, L.P.                $ 23,317,323            $        2.94              7,939,108             8.35%
Telecom Partners III, L.P.               $ 40,000,002            $        6.00              6,666,667             7.01%
                                         ------------            -------------           ------------          -------
   Total Telecom Partners                $ 63,317,325            $        4.34             14,605,775            15.36%
Centennial Fund V, L.P.                  $ 16,492,493            $        2.94              5,619,231             5.91%
Centennial Fund VI, L.P.                 $ 15,000,000            $        6.00              2,500,000             2.63%
Centennial Entrepreneurs Fund V, L.P.    $    418,694            $        2.64                158,858             0.17%
Centennial Entrepreneurs Fund VI, L.P.   $    375,000            $        6.00                 62,500             0.07%
Centennial Strategic Partners
   Fund VI, L.P.                         $    750,000            $        6.00                125,000             0.13%
Centennial Holdings I, L.L.C.            $    980,145            $        3.48                281,735             0.30%
                                         ------------            -------------           ------------          -------
   Total Centennial Funds                $ 34,016,332            $        3.89              8,747,324             9.20%
Eagle Ventures WF, L.L.C.(Crescendo)     $    286,634            $        3.00                 95,544             0.10%
Crescendo III, GbP.                      $    294,468            $        6.00                 49,078             0.05%
Crescendo III Executive Fund, LP         $    424,158            $        6.00                 70,693             0.07%
Crescendo World Fund, L.L.C.             $  5,985,399            $        3.00              1,995,133             2.10%
Crescendo III, L.P.                      $ 24,825,429            $        4.21              5,894,913             6.20%
                                         ------------            -------------           ------------          -------
   Total Crescendo Ventures              $ 31,816,088            $        3.93              8,105,361             8.53%
SLI Wireless S.A.                        $ 63,519,999            $        3.74             17,004,042            17.89%
Formus Common - LA Holdings, LLC         $ 38,798,995            $        3.43             11,307,802            11.89%
Taquari Participatoes S.A.               $  2,629,063            $        2.54              1,035,064             1.09%
Black Coral Enterprises Inc. (Taquari)   $  1,620,937            $        2.54                638,164             0.67%
                                         ------------            -------------           ------------          -------
   Total Taquari                         $  4,249,999            $        2.54              1,673,228             1.76%

TOTAL INVESTMENT FUNDS                   $235,718,738            $        3.84             81,443,532            64.63%

NEW INVESTORS:
     Janco Capital Management            $    500,004            $        6.00                 83,334             0.09%
     Brad Peery Capital, L.P.            $    310,200            $        6.00                 51,700             0.05%
     Brad Peery Capital Ventures, L.P.   $    262,800            $        6.00                 43,800             0.05%
     Brad Peery Capital International    $    202,800            $        6.00                 33,800             0.04%
     Brad Peery Capital, Inc.            $     24,800            $        6.00                  4,100             0.00%
     Mellon Ventures II, L.P.            $ 20,000,004            $        6.00              3,333,334             3.51%
     Bank of America                     $ 34,999,998            $        6.00              5,833,333             6.14%
     Qualcomm Incorporated               $ 15,000,000            $        6.00              2,500,000             2.63%
     Chestnut Hill VeloCom, LLC          $ 20,700,000            $        6.00              3,450,000             3.63%
     Dolphin Communications Fund, LP     $  3,517,680            $        6.00                586,280             0.62%
     Dolphin Communications Parallel
        Fund, LP                         $  1,482,318            $        6.00                247,053             0.26%
     First Union                         $ 19,145,874            $        6.00              3,190,979             3.36%
     Toronto Dominion Investments, Inc.  $  7,000,002            $        6.00              1,165,667             1.23%
     CRI Media Partners, LP              $    160,002            $        6.00                 26,667             0.03%
     CRI Media Partners II, LP           $    640,002            $        6.00                106,667             0.11%
     Northwood Ventures LLC              $  1,500,000            $        6.00                250,000             0.26%
     Aleks Aermovic                      $    100,002            $        6.00                 16,667             0.02%
     Orkin R Jacobson                    $     60,000            $        6.00                 10,000             0.01%
     Ravi Mhattre                        $     75,000            $        6.00                 12,500             0.01%
     TD Securities (USA), Inc.           $    300,000            $        6.00                 50,000             0.05%
                                         $         --            $        6.00                      0             0.00%
                                         ------------            -------------           ------------          -------
   SUBTOTAL:  NEW INVESTORS              $125,981,286            $        6.00             20,996,881            22.09%

MANAGEMENT & DIRECTORS
Fred A. Vierra                           $    462,595            $        2.58                179,198             0.19%
Nicholas Kauser                          $    312,589            $        2.03                154,197             0.16%
David J. Leonard                         $    342,936            $        2.23                153,896             0.16%
Barry Rowan                              $    349,995            $        3.50                 99,999             0.11%
Robert McKenzie                          $    256,298            $        2.73                 93,766             0.10%
Comm Capital Ptns Inc/ Barney Schotters  $  1,650,000            $        5.50                300,000             0.32%
Gregory P. Sadler                        $     93,145            $        2.27                 41,049             0.04%
R. Dwayne House                          $     84,171            $        2.45                 34,307             0.04%
Reinco (John Gowen)                      $     56,250            $        2.25                 25,000             0.03%
Michael Quinn                            $     75,000            $        3.00                 25,000             0.03%
Brad Johnson                             $     86,250            $        2.88                 30,000             0.03%
David Tomzuka                            $     75,000            $        3.00                 25,000             0.03%
                                         ------------            -------------           ------------          -------
TOTAL MANAGEMENT & DIRECTORS             $  3,844,229            $        3.31              1,161,412             1.22%

TOTAL FUNDS AND MANAGEMENT               $365,544,253            $        4.37             83,601,825            87.94%
TOTAL OTHER SHAREHOLDERS                 $    149,414            $        2.72                 55,000             0.06%
                                                                 -------------           ------------          -------
TOTAL SHARES OUTSTANDING                 $365,693,667            $        4.37             83,656,825            88.00%
STOCK OPTIONS                            $         --            $                         11,407,749            12.00%
                                                                 -------------           ------------          -------
FULLY DILUTED SHARES OUTSTANDING         $365,693,667            $        3.85             95,064,574           100.00%

Implied Valuation                                                                         Post-Money
                                                                                         $    570,387
</TABLE>


a) 948,913 of these shares represent voting series B preferred stock, which will
   represent 4.9159% of the total outstanding shares of voting series B
   preferred stock immediately following the January 7, 2000 funding.


                                       4

<PAGE>   64



                 FOLLOW-ON SERIES B/B-1 STOCK PURCHASE AGREEMENT

                                    EXHIBIT D

             FORM OF THIRD AMENDED AND RESTATED INVESTORS AGREEMENT
               FILED AS EXHIBIT 4.1 TO THE REGISTRATION STATEMENT


                                       D-1

<PAGE>   65



                 FOLLOW-ON SERIES B/B-1 STOCK PURCHASE AGREEMENT

                                    EXHIBIT E

                              FORM OF LEGAL OPINION


                                       E-1
<PAGE>   66
                                                                       EXHIBIT E

                              FORM OF LEGAL OPINION

     We are of the opinion that:

     1. The Company is a corporation duly incorporated, validly existing and in
good standing under the laws of the State of Delaware, with full corporate power
and authority to own, lease and operate its properties and to conduct its
business. The Company is qualified to do business and in good standing in each
jurisdiction in the United States where the failure to be so qualified would
result in a material adverse effect on the business, operations, assets,
prospects or condition (financial or otherwise) of the Company (a "Material
Adverse Effect").

     2. The authorized capital stock of the Company, immediately prior to the
Initial Closing Date, shall consist of (a) one hundred eight million six hundred
thirty four thousand four hundred twenty one (108,634,421) shares of Common
Stock, of which (i) one hundred six million six hundred sixty six thousand six
hundred sixty seven (106,666,667) will be designated as Voting Common Stock,
eleven million two hundred eighty three thousand eight hundred twenty six
(11,283,826) of which will be issued and outstanding immediately prior to the
Initial Closing Date, and (ii) one million nine hundred sixty seven thousand
seven hundred fifty four (1,967,754) will be designated as Non-Voting Common
Stock, none of which will be issued and outstanding immediately prior to the
Initial Closing Date, and (b) seventy eight million six hundred thirty four
thousand four hundred twenty one (78,634,421) shares of Preferred Stock, of
which (i) thirty one million (31,000,000) will be designated as Series A
Preferred Stock, thirty million seven hundred six thousand three hundred thirty
three (30,706,333) of which will be issued and outstanding immediately prior to
the Initial Closing Date, (ii) forty one million six hundred sixty six thousand
six hundred sixty seven (41,666,667) will be designated as Series B Preferred
Stock, of which seven million six hundred fifty seven thousand seventy three
(7,657,073) will be issued and outstanding immediately prior to the Initial
Closing Date, and an additional thirty four million nine thousand five hundred
ninety three (34,009,593) shares of which will have been committed to be sold by
the Company immediately prior to the Initial Closing Date and (iii) one million
nine hundred sixty seven thousand seven hundred fifty four (1,967,754) will be
designated as Series B-1 Preferred Stock, of which no shares will be issued and
outstanding immediately prior to the Initial Closing Date, but all of which will
have been committed to be sold by the Company immediately prior to the Initial
Closing Date. To our knowledge, except for the three million seven hundred
ninety eight thousand five hundred forty four (3,798,544) options outstanding
immediately prior to the Initial Closing Date, except for the conversion
privileges of the Series A Preferred Stock, Series B Preferred Stock and Series
B-1 Preferred Stock, except for the shares of Series B Preferred Stock to be
purchased pursuant to the Series B Preferred Stock Purchase Agreement dated as
of December 6, 1999 among the Company and the Purchasers listed on the schedule
of purchasers attached thereto,


                                       1
<PAGE>   67


as amended by Amendment No. 1 thereto dated as of December 31, 1999, and except
as disclosed in the Agreements or the exhibits or schedules attached thereto,
there are no options, warrants, conversion privileges, preemptive rights, rights
of first refusal or other rights to purchase from the Company any of its equity
securities that are outstanding immediately prior to the Initial Closing Date.

     3. All the shares of capital stock of the Company outstanding prior to the
Initial Closing Date have been duly authorized, validly issued and are fully
paid and nonassessable. The rights, preferences and privileges of the Series
B/B-1 Preferred Stock are as stated in the Certificate of Incorporation.

     4. To our knowledge, Schedule 4.12 to the Purchase Agreement sets forth the
current ownership structure of the Company and its Subsidiaries.

     5. Each of the Agreements has been duly authorized, validly executed and
delivered by the Company and is a valid and binding agreement of the Company,
enforceable against the Company in accordance with its terms, except as rights
to indemnity under Section 2.5 of the Investors Agreement may be limited by
applicable laws and public policy and except as enforcement may be limited by
applicable bankruptcy, insolvency, reorganization, arrangement, moratorium or
other similar laws affecting creditors' rights, and subject to general equity
principles and to limitations on availability of equitable relief, including
specific performance.

     6. The issuance, sale and delivery of the Series B/B-1 Preferred Stock
pursuant to the Purchase Agreement has been duly authorized by the Company and,
upon delivery to the Purchasers against payment therefor in accordance with the
Purchase Agreement and the terms of the Series B/B-1 Preferred Stock, the shares
of Series B/B-1 Preferred Stock will be validly issued, fully paid and
nonassessable.

     7. The shares of Common Stock to be issued upon conversion of the Series
B/B-1 Preferred Stock have been duly authorized and reserved for issuance by the
Company and, when issued and delivered upon conversion of the Series B/B-1
Preferred Stock in accordance with the Certificate of Incorporation, such shares
of Common Stock will have been validly issued and will be fully paid and
nonassessable.

     8. The execution of the Agreements by the Company, the compliance by the
Company with the terms thereof, and the offer and sale of the Series B/B-1
Preferred Stock pursuant to the Purchase Agreement (a) do not and will not
violate any provision of the Company's Certificate of Incorporation or Bylaws,
and (b) do not violate or contravene (i) the laws of the State of Colorado, the
General Corporation Law of the State of Delaware or any Federal law of the
United States of America applicable to the Company or (ii) any order, writ,
judgment, injunction, decree, determination or award which has been entered
against the Company and of which we have knowledge, the default, violation or
contravention of which would materially and adversely affect the Company, its
assets, financial condition or operations.


                                       2
<PAGE>   68


     9. All consents, approvals, authorizations or orders of, and filings,
registrations, and qualifications with, any regulatory authority or governmental
body in the United States required for the consummation by the Company of the
transactions contemplated by the Purchase Agreement have been made or obtained,
except for any filings required under federal or state securities laws, and
except for any filings required under the Hart-Scott-Rodino Antitrust
Improvements Act of 1976, as amended.

     10. To our knowledge, there is no suit, action, claim, arbitration or
similar proceeding or investigation pending or threatened against the Company or
against the Company's business or assets which, if adversely resolved, would be
reasonably likely to have a Material Adverse Effect.

     11. Subject to the accuracy of the Purchasers' representations in Section 4
of the Purchase Agreement and assuming all required filings are made under
federal and state securities laws, the offer, sale and issuance of the Series
B/B-1 Preferred Stock pursuant to the Purchase Agreement constitutes a
transaction exempt from the registration requirements of Section 5 of the
Securities Act of 1933, as amended (the "Securities Act") and from the
securities registration requirements of the Colorado securities laws. In
addition, subject to the accuracy of the Purchasers' representations in Section
4 of the Purchase Agreement, assuming such securities are not being exchanged in
a case under title 11 of the United States Code, and assuming no commission or
other remuneration is paid or given directly or indirectly for soliciting such
exchange, the issuance of the Common Stock issuable upon conversion of the
Series B/B-1 Preferred Stock would also constitute a transaction exempt from the
registration requirements of Section 5 of the Securities Act and from the
securities registration requirements of the Colorado securities laws.


                                       3
<PAGE>   69












                                  SCHEDULES TO

               VELOCOM/FOLLOW-ON SERIES B PREFERRED STOCK PURCHASE
                                   AGREEMENT



<PAGE>   70





              KEY TO SCHEDULES TO FOLLOW-ON SERIES B STOCK PURCHASE
                                    AGREEMENT

<TABLE>

<S>                                                     <C>
Argentina LLC                                           Formus Communications - Argentina LLC

Bell Canada                                             Bell Canada International

Bolivia LLC                                             Formus Communications - Bolivia LLC

Brasil Holdings                                         VeloCom Cayman Brasil Holdings (formerly WLL Cayman
                                                        S.P. Company)

Centennial                                              Centennial Fund V, Centennial Entrepreneurs Fund
                                                        and Centennial Holdings

Centennial Entrepreneurs Fund                           Centennial Entrepreneurs Fund V, L.P.

Centennial Fund V                                       Centennial Fund V, L.P.

Centennial Holdings                                     Centennial Holdings I, LLC

Chile Holdings                                          VeloCom Cayman Chile Holdings

Chile LLC                                               Formus Communications - Chile LLC

Colombia Holdings                                       VeloCom Cayman Colombia Holdings

Colombia LLC                                            Formus Communications - Colombia LLC

Crescendo                                               Eagle Ventures, Crescendo World Fund and Crescendo
                                                        III

Crescendo III                                           Crescendo III, L.P.

Crescendo World Fund                                    Crescendo World Fund, LLC

Eagle Ventures                                          Eagle Ventures WF, LLC

Formus                                                  Formus Communications Inc.

Formus Argentina                                        Formus S.A.

Formus Bolivia                                          Formus Bolivia S.A.
</TABLE>


                                        i

<PAGE>   71
<TABLE>

<S>                                                     <C>
Formus Chile                                            Formus Comunicaciones de Chile Limitada

Formus Colombia                                         Formus Colombia S.A. E.S.P.

Formus LA                                               Formus Communications - Latin America LLC

Formus Peru                                             Formus Peru S.A.

Formus Venezuela                                        Telecomunicaciones Interactivas de Venezuela C.A.

Interloop BVI                                           Interloop Americas Inc.

Interloop Colombia                                      Interloop S.A. Nacional de Telecomunicaciones E.S.P.

MegaTel                                                 Vesper Sao Paulo S.A. (formerly MegaTel do Brasil
                                                        S.A.)
PCN                                                     PCN Investment S.A.

Peru LLC                                                Formus Communications - Peru LLC

Qualcomm                                                QUALCOMM Incorporated

Qualcomm Brasil                                         QUALCOMM do Brasil S.A.

SLI                                                     SLI Wireless S.A.

Smartel                                                 Smartel S.A.

Taquari                                                 Taquari Participacoes S.A.

Telecom                                                 Telecom Partners II, L.P.

Telelatina                                              Telelatina S.A.

TMC                                                     Telelatina Management Company LLC

VeloCom                                                 VeloCom Inc. (also referred to as the "Company")

VeloCom Argentina                                       VeloCom SRL

VeloCom Brasil                                          VeloCom do Brasil Ltda. (formerly WLL Brasil
                                                        Holdings, Ltda.)
</TABLE>

                                       ii

<PAGE>   72

<TABLE>

<S>                                                     <C>
VeloCom Chile                                           WLL International Chile Ltda.

Venezuela LLC                                           Formus Communications - Venezuela LLC

Vesper                                                  Vesper (formerly Mirror S.A. and/or Canbra
                                                        Telefonica, S.A.)

Vesper Cayman                                           Vesper Cayman

Vesper Sao Paulo Cayman                                 Vesper Sao Paulo Cayman, Ltd.

Vesper Holding                                          Vesper Holding S.A. (formerly Mirror Holding S.A.
                                                        and/or Canbra Holding S.A.)

Vesper Sao Paulo Holding                                Vesper Sao Paulo Holding S.A. (formerly MegaTel
                                                        Holding S.A.)

WLL Argentina                                           WLL Argentina SRL
</TABLE>



                                      iii
<PAGE>   73






                               INDEX OF SCHEDULES
<TABLE>

<S>                   <C>
4.4                   Consents and Approvals
4.5(a)                Compliance With Laws
4.5(b)                Material Permits
4.6                   Patent and Trademark Rights
4.8                   Contracts
4.12                  Subsidiaries
4.13                  Capitalization of Subsidiaries
4.14(a)               Share Ownership of Company
4.14(b)               Agreements Relating to Equity Interests in Companies
4.18                  Licenses
4.20                  Liabilities
4.22(a)               Collective Bargaining Agreements or Employment Agreements
                      Not Terminable at Will
4.22(b)               Employees and Directors of the Company
4.23                  Employee Benefit Plans
4.24                  Recordkeeping Compliance
</TABLE>

                                       iv

<PAGE>   74





                                  SCHEDULE 4.4

                             CONSENTS AND APPROVALS

VELOCOM

         Filing of Form D with the United States Securities and Exchange
         Commission and applicable state securities authorities will be required
         post-Closing.


                                       1

<PAGE>   75



                                 SCHEDULE 4.5(a)

                              COMPLIANCE WITH LAWS

VELOCOM CHILE

         VeloCom Chile (a non-operating company with no assets) has not filed
         certain monthly tax reports with Chilean tax authorities. The Company
         is in the process of making such filings.

INTERLOOP COLOMBIA

         Interloop Colombia has not made certain payments in respect of its
         license obligations, the result of which could be a loss of this
         entity's license. In addition, the buildout requirements in respect of
         this license have not been fully complied with. Interloop Colombia has
         also not complied with all legal requirements relating to its financial
         statements.



                                       1

<PAGE>   76




                                 SCHEDULE 4.5(b)

                                MATERIAL PERMITS

VESPER HOLDING

         Vesper Holding was registered with Brazilian Federal tax authorities
         under registration No. 02.763.387/0001-6.

VESPER SAO PAULO HOLDING

         Vesper Sao Paulo Holding was registered with Brazilian Federal tax
         authorities under registration No. 03.008. 468/0001-10.

VESPER

         1. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Local, Que Entre Si Celebram A Agencia Nacional de Telecomunicacoes -
         ANATEL e Vesper.

         2. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Longa Distancia Nacional de Ambito Intra-Regional, Que Entre Si
         Celebram A Agencia Nacional de Telecomunicacoes - ANATEL e Vesper.

         3. Vesper was registered with Brazilian Federal and State tax
         authorities under registrations No. 02.730.101/0001-4 and 85297791,
         respectively.

         4. License for Packet Switched Network Services issued by Anatel on
         September 23, 1999.

         5. License for Circuit Switched Network Services issued by Anatel on
         September 23, 1999.

         6. License for Dedicated Line Services issued by Anatel on September
         23, 1999.

         7. License for Special Services of Audio and Video Signal
         Retransmission issued by Anatel on September 23, 1999.

         8. License for Network Transport issued by Anatel on September 23,
         1999.

MEGATEL

         1. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Local, Que Entre Si Celebram A Agencia Nacional de Telecomunicacoes -
         ANATEL e MegaTel.


                                       1

<PAGE>   77

         2. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Longa Distancia Nacional de Ambito Intra-Regional, Que Entre Si
         Celebram A Agencia Nacional de Telecomunicacoes - ANATEL e MegaTel.

         3. MegaTel was registered with Brazilian Federal and State tax
         authorities under registrations No. 02.629.188/0001-6 and
         115.322.817.110, respectively.

         4. License for Packet Switched Network Services issued by Anatel on
         September 23, 1999.

         5. License for Circuit Switched Network Services issued by Anatel on
         September 23, 1999.

         6. License for Dedicated Line Services issued by Anatel on September
         23, 1999.

         7. License for Special Services of Audio and Video Signal issued by
         Anatel on September 23, 1999.

         8. License for Retransmission issued by Anatel on September 23, 1999.

         9. Liceneca para transporte de dados - ANATEL ("data transport license"
         under analysis regarding all possible applications)

TELELATINA

         1. By Resolution 2617SC/97 issued by the Secretary of Communications on
         September 4, 1997, Telelatina was granted a license to provide Value
         Added Services, Data Transmission Services and Videoconferencing
         services nationwide.

         2. By Resolution 3064SC/97, issued by the Secretary of Communications
         on October 15, 1997, Telelatina was granted an authorization to use,
         the frequency bandwidth from 3,450 MHz to 3,475 MHz. and from 3,550
         MHz. to 3,575 MHz. The use of these frequencies is governed by
         Resolution 2879SC/97 as amended by 869SC/98.

         3. Telelatina has obtained the National Communications Commission's
         authorization to install and operate two microwave links, and is in the
         process of obtaining authorization for various other microwave links.

         4. Telelatina has filed a petition with the National Communications
         Commission to obtain authorization to install eight cells within the
         City of Buenos Aires.


                                       2

<PAGE>   78

SMARTEL

         1. By Resolution 1130SC/98 issued by the Secretary of Communications on
         May 7, 1998, Smartel was granted a license to provide Value Added
         Services, Data Transmission Services, Broadcasting signals carriage
         services and Videoconferencing services.

         2. By Resolution 1247SC/98, issued by the Secretary of Communications
         on May 22, 1998, Smartel was granted an authorization to use, for the
         AMBA (which area comprises the City of Buenos Aires and certain
         locations nearby), Rosario, Cordoba and Mendoza the frequency bandwidth
         from 26,850 GHz to 27,350 GHz. and from 31,075 GHz. to 31,150 GHz. The
         use of these frequencies is governed by Resolution 869SC/98, as
         amended.

FORMUS ARGENTINA

         Bands: E Band which totals 575 MHz and consists of the following
         frequencies: 25.85 to 26.35 GHz and 29.175 to 29.25 GHz (awarded
         November 1998). This spectrum assignment may initially be used only in
         the following cities: AMBA (Area Multiple Buenos Aires), La Plata and
         Cordoba. Services: Data transmission, value added and videoconferencing
         (awarded September and November 1998).

FORMUS COLOMBIA

         Bands: 300 MHz at 38 GHz; channels 13, 14, 17 (awarded November 1998).
         The license fees for the 38 GHz spectrum license has been increased
         from approximately US$222,000 to approximately US$534,000. This
         increase is effective for the year 2000 payment due January 2000.

         Services: Local carrier and value added (awarded August 1998 and May
         1999)

FORMUS PERU

         Bands: 400 MHz at 38 GHz; channels 1-4 (awarded May 1999).

         Services: Local carrier and value added (awarded April 1999).

INTERLOOP COLOMBIA

         1. License to provide Basic Commuted Telephone Services in Colombia.
         Such license was granted by Resolution 4262 issued on 9/23/97, expiring
         on 12/23/2007, the scope of this license shall be for the territory of
         Santa Fe de Bogota, DC (Departamento de Curdinamarca), Cali
         (Departamento de Valle del Cauca), Medellin (Departamento de
         Antioquia), Barranquilla (Departamento de Atlantico), Bucaramanga
         (Departamento de Santander), Cartagena (Departamento de Bolivar), Santa
         Marta (Departamento de Magdalena), Pereira (Departamento

                                       3

<PAGE>   79

         de Risaralda), Cucuta (Departamento del Norte de Santander) y
         Villavicencio (Departamento del Meta).

         2. License to provide Telematics and Value Added Services, and the
         constitution of an Associate Value Added Service Network, which was
         granted by Resolution 4472 issued on 10/10/97 expiring on 10/10/2007.

         3. Interloop Colombia was authorized to use the radioelectric spectrum
         as per Resolution 5195 issued on 29/12/97. By Resolution 106 of 1999,
         Interloop was authorized to use exclusively bands 23 y 3.4 GHz within
         the cities where it had been awarded with a license until 9/22/2007.

ODECAR S.A.

         1. Odecar S.A. was assigned, on December 14, 1999, per Resolution No.
         404.99 of the Direccion Nacional de Comunicaciones of Uruguay, the
         radioelectric sub-blocks 24.600 GHz - 24.850 GHz in Montevideo and
         25,100 GHz - 25.350 GHZ, 25.600 GHZ - 25.850 GHz and 26.100 GHz -
         26.350 GHz in Maldonado for use in providing commercial data
         transmission service.

                                        4

<PAGE>   80




                                  SCHEDULE 4.6

                           PATENT AND TRADEMARK RIGHTS

VELOCOM

         1. Applications for trademark for "VELOCOM" and "VESPER" have been
         filed in:

                  Argentina
                  Bolivia
                  Brazil (VeloCom only)
                  Colombia
                  Chile
                  Mexico
                  Paraguay
                  Peru
                  Uruguay
                  Venezuela
                  United States of America

         All applications are pending.

         2. Applications for trademark for "VELOCOMM" have been filed in:

                  Argentina
                  Brazil
                  Colombia
                  Chile
                  Mexico
                  Peru
                  Uruguay
                  Venezuela
                  United States of America

         All applications have been abandoned or will be abandoned.

         3. The domain name "VELOCOM" has been secured by the Company.

VESPER

         1. Applications for the following trademarks have been filed in Brazil:

                   "CLARIDA"
                   "ATIMO"
                   "VESPER"

                   All applications are pending.

                                       1

<PAGE>   81

TMC

         1. Trademark application for:



            Application No. 2.210.763 filed on March 29, 1999 to cover all
            services in International Class 38. This application has encountered
            an opposition by Radio Mitre S.A. on the basis of the trademark
            "CADENA LATINA," Registration No. 1.675.177 in International Class
            38.

         2. Trademark application for:



            Application No. 2.210.764 filed on March 29, 1999 to cover all
            services in International Class 38.

         3. Trademark application for:



            Application No. 2.210.765 filed on March 29, 1999 to cover all
            services in International Class 38.

         4. Trademark application for "TMC": Application No. 2.210.766 filed on
         March 29, 1999 to cover all services in International Class 38. This
         application has encountered an opposition by T.M.C. Learreta y Ramirez
         S.E., Ramirez, Fernando Luis / Learreta, Leonardo, on the basis of
         their trademark "TMC COMPUTACION", Registrations Nos. 1.661.729 granted
         on March 23, 1998 covering all services in International Class 42, and
         1.666.293 granted on April 24, 1998 covering all goods in International
         Class 9.

TELELATINA

         1. Trademark application for "LATINWAY": international class No. 38
         (minutes 2,173,040) filed on September 2, 1998, and published in the
         Trademark Bulletin on October 28, 1998. This application has
         encountered an opposition by Miniphone S.A. based on its trademark
         "LATINNET (COMUNICACIONES PERSONALES LATINOAMERICANAS)" Registration
         No. 1.576.565 of international class 38.


                                       2

<PAGE>   82

         2. Trademark application for "LATINCOM": international class No. 38
         (minutes 2,173,041) filed on September 2, 1998, and published in the
         Trademark Bulletin on October 28, 1998. This application has
         encountered an opposition by Miniphone S.A. based on its trademark
         "LATINNET (COMUNICACIONES PERSONALES LATINOAMERICANAS)" Registration
         No. 1.576.565 of international class 38.

         3. Trademark application for "LATINLINK": international class No. 38
         (minutes 2,173,038) filed on September 2, 1998, and published in the
         Trademark Bulletin on October 28, 1998. This application has
         encountered an opposition by Miniphone S.A. based on its trademark
         "LATINNET (COMUNICACIONES PERSONALES LATINO-AMERICANAS)" Registration
         No. 1.576.565 of international class 38.

         4. Trademark application for "LATINDATA", international class No. 38
         (minutes 2,173,039) filed on September 2, 1998, and published in the
         Trademark Bulletin on October 28, 1998. This application has
         encountered an opposition by Miniphone S.A. based on its trademark
         "LATINNET (COMUNICACIONES PERSONALES LATINOAMERICANAS)" Registration
         No. 1.576.565 of international class 38.

         5. Trademark application for "TELELATINA" and logo:



         Application No. 2.198.589 filed on January 20, 1999 to cover all
         services in International Class 38. This application has encountered an
         opposition by Radio Mitre S.A. on the basis of their trademark "CADENA
         LATINA", Registration No. 1.675.177, in International Class 38.

         6. Please note that according to the Trademarks Office database
         FEDERACION DE COOP. DE TELECOMUNICACIONES DE LA REP. ARG. LTDA owns the
         trademark application of "TELELATINA", Application No. 2.091.831, filed
         on July 14, 1997, to cover all services in Int. Class 38.

         7. Trademark application for "ICONWEB": application No. 2.210.176,
         filed by Mr. Miguel Angel de Dios on March 25, 1999, to cover all
         services in International Class 38. This application did not encounter
         oppositions by third parties. This application trademark is in process
         of being assigned by Mr. Miguel Angel de Dios in favor of Telelatina

         8. Trademark application for "WIDENET": application No. 2.210.177,
         filed by Mr. Miguel Angel de Dios on March 25, 1999, to cover all
         services in International Class 38. This application did not encounter
         oppositions by third parties. This application trademark is in process
         of being assigned by Mr. Miguel Angel de Dios in favor of Telelatina.


                                       3

<PAGE>   83


         9. Trademark application for "WIDENET.COM": application No. 2.217.827,
         filed by Mr. Miguel Angel de Dios on May 6, 1999, to cover all services
         in International Class 38. This application has been published in the
         Trademark Bulletin for opposition purposes. The term to oppose this
         trademark expires on August 27, 1999. Please note that the following
         applications have not yet been published for opposition purposes. This
         application trademark is in process of being assigned by Mr. Miguel
         Angel de Dios in favor of Telelatina.

         10. Trademark application for "W": application No. 2.222.712, filed by
         Mr. Miguel Angel de Dios on June 4, 1999, to cover all services in
         International Class 38. This application trademark is in process of
         being assigned by Mr. Miguel Angel de Dios in favor of Telelatina.

         11. Trademark application for "WIDENET W": application No. 2.223.045,
         filed by Mr. Miguel Angel de Dios on June 7, 1999, to cover all
         services in International Class 38. This application trademark is in
         process of being assigned by Mr. Miguel Angel de Dios in favor of
         Telelatina.

         12. Trademark application for "WIDENET": application No. 2.223.046,
         filed by Mr. Miguel Angel de Dios on June 7, 1999, to cover all
         services in International Class 38. This application trademark is in
         process of being assigned by Mr. Miguel Angel de Dios in favor of
         Telelatina.

         13. Trademark application for "I": application No. 2.230.853, filed by
         Mr. Miguel Angel de Dios on July 26, 1999, to cover all services in
         International Class 38. This application trademark is in process of
         being assigned by Mr. Miguel Angel de Dios in favor of Telelatina.

SMARTEL

         1. Trademark application for "SMARTEL": Application No. 2.196.692,
         filed on January 8, 1999, to cover all goods in International Class 9.
         This application has encountered oppositions by: a) TELEFONICA DE
         ARGENTINA S.A., on the basis of "SMART-NET", Application No. 2.113.255,
         filed on November 7, 1997, to cover all services in International Class
         38; b) STARTEL S.A., on the basis of "STARTEL", Registration No.
         1.574.537, granted on September 7, 1995, covering all goods in
         International Class 9, and on the basis of their corporate name
         STARTEL; and c) DATCO S.A., on the basis of "SMARTTIME", Registration
         No. 1.608.708, granted on July 29, 1996 to cover all goods in
         International Class 9.

         2. Trademark application for "SMARTEL": Application No. 2.196.693,
         filed on January 8, 1999, to cover all services in International Class
         38. This application encountered oppositions by: a) TELEFONICA DE
         ARGENTINA S.A., on the basis of "SMART-NET", Application No. 2.113.255,
         filed on November 7, 1997 to cover all services in International Class
         38; and b) STARTEL S.A., on the


                                       4

<PAGE>   84


         basis of "STARTEL S.A. SERVICIOS ARGENTINOS DE TELECOMUNICACIONES",
         Registration No. 1.574.520, granted on September 7, 1995 covering all
         services in International Class 38, and on the basis of their corporate
         name STARTEL.


                                        5

<PAGE>   85



                                  SCHEDULE 4.8

                                    CONTRACTS

VELOCOM

         1. Equity Subscription Agreement dated as of June 30, 1998 between the
         Company, Telecom Partners, Centennial Fund V, Centennial Entrepreneurs
         Fund, Centennial Holdings I, IAI World Fund, L.L.C., Eagle Ventures,
         Fred A. Vierra, Robert McKenzie and Jim Frank, as amended by the First
         Amendment to the Seed Round Agreement dated January 6, 1999, and the
         Second Amendment to the Seed Round Agreement dated May 21, 1999.

         2. Letter Agreement dated as of December 4, 1998 between the Company,
         Telecom, Centennial, Crescendo World Fund, Eagle Ventures, Fred A.
         Vierra, Robert McKenzie, Jim Frank, David J. Leonard and Greg Sadler.

         3. Irrevocable Equity Contribution Agreement dated December 7, 1998 by
         and among the Company, Telecom, Crescendo World Fund and Centennial.

         4. Security Agreement dated December 8, 1998 by and among Telecom,
         Centennial Fund V and Crescendo World Fund.

         5. Letter Agreement dated December 8, 1998 by and among Telecom,
         Centennial Fund V and Crescendo World Fund.

         6. Control Agreement dated December 8, 1998 by and among Crescendo
         World Fund, Centennial Fund V, Telecom, BankBoston, N.A. and Boston
         1784 Funds.

         7. Equity Subscription Agreements between the Company and each of
         Nicolas Kauser, David Leonard, R. Dwayne House, REINCO Corp., Michael
         S. Quinn, C. James Frank, Michael Lisogurski, North River Ventures,
         Inc. Pension Plan, Francis McInerney, Clarence Endy, Brad Johnson, Sean
         White, Bernard Schotters, David Leonard and Barry Rowan.

         8. Joinder Agreements between the Company and each of R. Dwayne House,
         REINCO Corp., Nicolas Kauser, Michael S. Quinn, Clarence Endy, Brad
         Johnson and Barry Rowan.


         9. Series A Preferred Stock Purchase Agreement dated as of January 26,
         1999 between the Company, Telecom, Centennial and Crescendo.

         10. Pro Rata Letter Agreements dated as of March 31, 1999 between the
         Company and each of Telecom, Centennial, Crescendo, REINCO Corp., C.
         James Frank, R. Dwayne House, Nicolas Kauser, David J. Leonard, Robert
         McKenzie, Gregory P. Sadler and Frank A. Vierra.


                                       1

<PAGE>   86


         11. Second Irrevocable Equity Contribution Agreement dated as of April
         16, 1999 between the Company, Telecom, Crescendo, Centennial, David J.
         Leonard, Gregory P. Sadler, Fred A. Vierra, Robert McKenzie, C. James
         Frank, R. Dwayne House and Nicolas Kauser.

         12. Second Series A Preferred Stock Purchase Agreement dated as of May
         7, 1999 between the Company, Telecom, Crescendo, Centennial, David J.
         Leonard, Gregory P. Sadler, Fred A. Vierra, Robert McKenzie, C. James
         Frank, R. Dwayne House and Nicolas Kauser.

         13. Employment Letters between the Company and each of David Leonard,
         Charles Schneider, Derek Koecher, Henry Peraza, Michael Casullo, Lisa
         Gamel, Patricia Reichman, R. Dwayne House, John Gowen, Michael Quinn,
         Barry Rowan, Antonio Salles, Steve Dougherty, Greg Sadler, Julia
         Hughes, Nicolas Kauser, Brad Johnson, Diego Rodrigues, Guillermo
         ("Willie") Ramirez, Mark Johnson, Dave Tomizuka, Phillip Shoemaker,
         Anne Doris, Julie Garcia, and Wendy Shantz.

         14. Stock Option Agreements between the Company and each of David
         Leonard (10/1/98), David Leonard (10/1/98), David Leonard (5/21/99),
         Nicolas Kauser (10/1/98), Nicolas Kauser (5/21/99), Clarence Endy
         (4/12/99), Clarence Endy (5/21/99), Clarence Endy (5/21/99), Barry
         Rowan (7/12/99); Barry Rowan (7/12/99), John Gowen (12/7/98), John
         Gowen (5/21/99), John Gowen (5/21/99), Michael Quinn (7/16/99), Michael
         Quinn (7/16/99), Greg Sadler (12/7/98), Greg Sadler (5/21/99), Greg
         Sadler (5/21/99), R. Dwayne House (1/4/99), R. Dwayne House (5/21/99),
         R. Dwayne House (5/21/99), Michael Casullo (3/15/99), Michael Casullo
         (5/21/99), Derek Koecher (6/7/99), Patricia Reichman (4/1/99), Julia
         Hughes (10/5/98), Julia Hughes (12/7/98), Julia Hughes (5/21/99), Shaun
         Orton (5/21/99), Lisa Gamel (3/8/99), Lisa Gamel (5/21/99), Brad
         Johnson (5/3/99), Brad Johnson (5/21/99), Brad Johnson (5/21/99),
         Charles Schneider (7/11/99), Henry Peraza (6/1/99), Henry Peraza
         (6/1/99), Fred Vierra (9/17/98), Fred Vierra (5/21/99), Bernard
         Schotters (6/18/99), Steve Dougherty (8/1/99), Antonio Salles (8/1/99),
         David Tomizuka (10/1/99), Mario Janovich (10/1/99), Luis Gonzalez
         Lanuza (10/1/99), Bob McKenzie (5/21/99), Bob McKenzie (9/17/98), Patti
         Reichman (5/21/99), Wendy Shantz (7/16/99).

         15. Engagement Letter dated March 11, 1999 by and between the Company
         and Lehman Brothers.

         16. Engagement Letter dated March 15, 1999 by and between the Company
         and TD Securities (USA) Inc.

         17. Engagement Letter dated March 15, 1999 by and between the Company
         and Donaldson, Lufkin & Jenrette Securities Corporation.


                                       2

<PAGE>   87



         18. Engagement Letter dated July 12, 1999 by and between the Company
         and Fisher & Hilligoss LLC as amended.

         19. Oral Agreement between the Company and Straight Marketing to
         provide marketing and consulting services.

         20. Multiparty Non-Disclosure Agreement, between Qualcomm Brasil, the
         Company and Qualcomm, dated November 4, 1998.

         21. Joint Bidding Agreement, between the Company and Qualcomm Brasil,
         dated November 9, 1998.

         22. Memorandum of Understanding between the Company, Bell Canada,
         Taquari, and Qualcomm Brasil, dated December 8, 1998.

         23. Option Agreement between the Company, Bell Canada, Taquari, SLI,
         BID S.A. and Qualcomm Brasil, dated January 15, 1999.

         24. Multiparty Non-Disclosure Agreement, between Qualcomm Brasil, Bell
         Canada, the Company, Taquari, SLI and BID S.A., dated January 20, 1999.

         25. Memorandum of Understanding, between the Company, Bell Canada, SLI
         and Qualcomm Brasil, dated March 15, 1999.

         26. Letter of Agreement, between the Company, Bell Canada, SLI and
         Qualcomm Brasil, dated May 4, 1999.

         27. Second Letter of Agreement, between the Company, Bell Canada, SLI
         and Qualcomm Brasil, dated May 26, 1999.

         28. Purchase Agreement by and among Formus, Formus International, Inc.
         and the Company dated as of August 20, 1999.

         29. Subscription Agreement between Formus and the Company dated August
         20,1999.

         30. Consolidation Agreement by and among SLI, Sociedad Latinoamericana
         S.A., Brasil Holdings and the Company dated as of August 20, 1999.

         31. Subscription Agreement between SLI and the Company dated August 20,
         1999.

         32. Purchase Agreement between Taquari and the Company dated as of
         August 20, 1999.

         33. Subscription Agreement between Taquari and the Company dated August
         20, 1999.


                                       3

<PAGE>   88


         34. Amended and Restated Investors Agreement dated as of September 27,
         1999 between the Company and its principal stockholders.

         35. Purchase Agreement between the Company and PCN do Brasil S.A. dated
         as of September 27, 1999.

         36. Purchase Agreement between the Company and Inepar S.A. dated as of
         September 27, 1999.

         37. Pledge Agreement dated September 27, 1999 between the Company and
         PCN do Brasil S.A.

         38. Escrow Agreement dated September 27, 1999 between the Company, PCN
         do Brasil S.A. and Bank Boston S.A.

         39. Letter Agreement dated August 23, 1999 between the Company and SLI
         in respect of the bid for Region II in Brazil.

         40. Joint Bidding Agreement dated August 25, 1999 between the Company,
         Bell Canada and Qualcomm in respect of the bid for Region II in Brazil.

         41. Consent and Agreement dated September 22, 1999 between the Company
         and its affiliates, SLI and its affiliates, Qualcomm and its
         affiliates, Taquari and its affiliates and Bell Canada and its
         affiliates.

         42. Equity Investment Agreement dated October 21, 1999 between the
         Company and certain of its stockholders.

         43. Affiliate Agreement made as of November 9, 1998 between Telecom
         Management II LLC and the Company (Lease Agreement relating to the
         Company's premises at 6400 South Fiddlers Green Circle).

         44. Capital Contribution Agreement executed by the Company and Brasil
         Holdings dated December 13, 1999 in favor of ABN Amro as agent for
         certain lenders.

         45. Additional Capital Contribution Agreement executed by the Company
         and Brasil Holdings dated December 13, 1999 in favor of ABN Amro as
         agent for certain lenders.

         46. Two Support Obligations dated December 13, 1999, to be executed by
         the Company in respect of the Capital Contribution Agreement and
         Additional Capital Contribution Agreement referred to in items numbered
         45 and 46 above.

         47. Side Letter dated December 13, 1999 to be executed by the Company
         VeloCom Brasil and Brasil Holdings in respect of the Additional Capital
         Contribution Agreement referred to in item 46 above.


                                       4

<PAGE>   89


         48. Commitment Letter dated as of August 10, 1999 from Nortel Networks
         Corporation, Northern Telecom do Brasil Comercio e Servicos Ltda. and
         Northern Telecom do Brasil Industria e Comercio Ltda. to Bell Canada
         International (Brazil Telecom 1) Limited, SLI, Qualcomm Brasil,
         Taquari, VeloCom Brasil, Vesper, Bell Canada, VeloCom, Qualcomm, Rio
         Purus Participacoes Ltda., CFL Participacoes Ltda., Samuel Liberman and
         Guillermo Liberman.

         49. Letter Agreement dated August 10, 1999 by and among Nortel Networks
         Corporation, Northern Telecom do Brasil Comercio e Servicos Ltda. and
         Northern Telecom do Brasil Industria e Comercio Ltda., Bell Canada
         International (Brazil Telecom 1) Limited, SLI, Qualcomm Brasil,
         Taquari, VeloCom Brasil, Vesper, Bell Canada, VeloCom, Qualcomm, Rio
         Purus Participacoes Ltda., CFL Participacoes Ltda., Samuel Liberman and
         Guillermo Liberman.

         50. Technical Assistance Agreement between the Company and Formus
         International dated September 27, 1999.

         51. Management Rights Agreement dated October 28, 1999 between the
         Company and Crescendo III.

         52. Assignment and Assumption Agreement between Formus International
         Inc. and the Company dated September 27, 1999 in connection with a
         certain Uruguay LMDS development project.

         53. Consulting Agreement dated October 22, 1999, by and between
         Rigoberto Costa and the Company.

         54. Loan Agreement dated as of November 19, 1999 among the Company, as
         borrower, and Telecom Partners II, L.P., Crescendo World Fund, L.L.C.,
         Eagle Ventures WF, LLC, Crescendo III, L.P., Crescendo III, GbR,
         Crescendo III Executive Fund, L.P., Centennial Fund V., L.P.,
         Centennial Holdings I, LLC, SLI Wireless S.A., Formus Communications -
         Latin America Holdings, LLC.

         55. Term sheet between BankAmerica International Investment Corporation
         and the Company dated December 1, 1999.

         56. Purchase Agreement dated December 6, 1999 between the Company and
         the investors listed therein.

         57. Second Amended and Restated Investors Agreement between the Company
         and the stockholders listed therein.

         58. Memorandum of Understanding between the Company, Ejemil S.A.,
         Odecar S.A., Mr. Diego Beltran Storace and El Pais S.A. dated November
         29, 1999.


                                       5

<PAGE>   90



         59. Letter of Intent between the Company, Bell Canada International,
         BRHS S.A. and Roberto Jose Rigotto de Gouvea dated December 21, 1999.

         60. Escrow Agreement between the Company, Bell Canada International,
         BRHS S.A. and Roberto Jose Rigotto de Gouvea and State Street Bank and
         Trust Company dated December 21, 1999.

         61. Amended and Restated Shareholders Agreement (Vesper Holding) dated
         as of December 16, 1999 between the Company, Vesper Holding, Brasil
         Holding, Bell Canada International and Qualcomm, and their affiliates.

         62. Amended and Restated Shareholders Agreement (Vesper Sao Paulo
         Holding) dated as of December 23, 1999 between the Company, Brasil
         Holdings, Vesper Sao Paulo Holding, Bell Canada International and
         Qualcomm, and their affiliates.

         63. Shareholder Pledge Agreement in respect of the Nortel/Ericsson
         Financing dated December 16, 1999 between Bell Canada International,
         the Company, Qualcomm, BCI Brazil, Brasil Holdings, Qualcomm Brasil and
         the Collateral Agent.

         64. Sponsor Support Agreement (Lucent) dated December 27, 1999 between
         Lucent, Bell Canada International, Qualcomm, Brasil Holdings, the
         Company and their affiliates.

         65. Substitute Financing Letter dated December 27, 1999, between Vesper
         Sao Paulo Holding, Lucent, Bell Canada International, Qualcomm, Brasil
         Holdings, the Company and their affiliates.

         66. Marketing Assistance Letter dated December 27, 1999 between Lucent,
         Bell Canada International, Qualcomm, Brasil Holdings, Vesper Sao Paulo
         Holding, the Company and their Affiliates.

         67. Memorandum of Understanding dated December 21, 1999 between the
         Company and Qualcomm Incorporated.

VELOCOM BRASIL

         1. Commitment Letter dated as of August 10, 1999 from Nortel Networks
         Corporation, Northern Telecom do Brasil Comercio e Servicos Ltda. and
         Northern Telecom do Brasil Industria e Comercio Ltda. to Bell Canada
         International (Brazil Telecom 1) Limited, SLI, Qualcomm Brasil,
         Taquari, VeloCom Brasil, Vesper, Bell Canada, VeloCom, Qualcomm, Rio
         Purus Participacoes Ltda., CFL Participacoes Ltda., Samuel Liberman and
         Guillermo Liberman.



                                       6
<PAGE>   91


         2. Letter Agreement dated August 10, 1999 by and among Nortel Networks
         Corporation, Northern Telecom do Brasil Comercio e Servicos Ltda. and
         Northern Telecom do Brasil Industria e Comercio Ltda., Bell Canada
         International (Brazil Telecom 1) Limited, SLI, Qualcomm Brasil,
         Taquari, VeloCom Brasil, Vesper, Bell Canada, VeloCom, Qualcomm, Rio
         Purus Participacoes Ltda., CFL Participacoes Ltda., Samuel Liberman and
         Guillermo Liberman.

         3. Shareholders Agreement between Taquari, SLI, Qualcomm Brasil, Bell
         Canada, VeloCom Brasil and Vesper, dated February 4, 1999.

         4. Option Agreement between Bell Canada and VeloCom Brasil, dated
         February 4, 1999.

         5. Agreement between VeloCom Brasil and Qualcomm Brasil, dated February
         4, 1999, concerning Option Agreement.

         6. Shareholders Agreement between Taquari, SLI, Qualcomm Brasil, Bell
         Canada, VeloCom Brasil and Vesper Holding, dated February 4, 1999.

BRASIL HOLDINGS

         1. Shareholders Agreement between SLI, Qualcomm Brasil, Bell Canada
         International (MegaTel) Limited, Brasil Holdings and Vesper Sao Paulo
         Holding dated as of July 30, 1999.

         2. Option Agreement dated as of July 30, 1999 by and between Bell
         Canada International (MegaTel) Limited and Brasil Holdings.

         3. Capital Contribution Agreement to be executed by Brasil Holdings
         dated December 13, 1999 in favor of ABN Amro as agent for certain
         lenders.

         4. Additional Capital Contribution Agreement to be executed by Brasil
         Holdings dated December 13, 1999 in favor of ABN Amro as agent for
         certain lenders.

         5. Side Letter dated December 13, 1999 to be executed by the Company
         and Brasil Holding in respect of the Additional Capital Contribution
         referred to above.

         6. Amended and Restated Shareholders Agreement (Vesper Holding) dated
         as of December 16, 1999 between the Company, Vesper Holding, Brasil
         Holdings, Bell Canada International and Qualcomm, and their affiliates.

         7. Amended and Restated Shareholders Agreement (Vesper Sao Paulo
         Holding) dated as of December 23, 1999 between the Company, Brasil
         Holdings, Vesper Sao Paulo Holding, Bell Canada International, Qualcomm
         and their affiliates.



                                       7
<PAGE>   92


         8. Shareholder Pledge Agreement in respect of the Nortel/Ericsson
         Financing dated December 16, 1999 between Bell Canada International,
         the Company, Qualcomm, BCI Brasil, Brasil Holdings, Qualcomm Brasil and
         the Collateral Agent.

         9. Substitute Financing Side Letter, dated December 27, 1999, among
         Qualcomm, the Company, BCI, the Lenders and the Agents.

VESPER HOLDING

         1. Shareholders Agreement between Taquari, SLI, Qualcomm Brasil, Bell
         Canada, VeloCom Brasil and Vesper Holding, dated February 4, 1999.

         2. Common Terms Agreement to be executed between Vesper, Vesper
         Holding, ABN Amro and the lenders thereto dated December 13, 1999.

         3. Amended and Restated Shareholders Agreement dated as of December 16,
         1999 between the Company, Vesper Holding, Bell Canada, Brasil Holding,
         Qualcomm, and their affiliates.

         4. Capital Contribution Agreement dated December 13, 1999 between
         Vesper Holding and the Collateral Agent (Nortel/Ericsson financing).

         5. Stock Pledge Agreement in respect of stock of Vesper dated December
         16, 1999 between Vesper Holding, and the Collateral Agent and related
         powers of attorney.

         6. Guaranty executed by Vesper Holding in respect of Vesper dated
         December 16, 1999.

         7. Shareholder Pledge Agreement and related filings dated December 16,
         1999 executed by Vesper Holding.

VESPER SAO PAULO HOLDING

         1. Shareholders Agreement between SLI, Qualcomm Brasil, Bell Canada
         International (MegaTel) Limited, Brasil Holdings and Vesper Sao Paulo
         Holding dated as of July 30, 1999.

         2. Amended and Restated Shareholders Agreement between Qualcomm Brasil,
         Bell Canada, Brasil Holdings, the Company, Vesper Sao Paulo Holding and
         their affiliates dated as of December 23, 1999.



                                       8
<PAGE>   93


         3. Sponsor Support Agreement dated December 27, 1999 in respect of
         Lucent financing.

         4. Lucent Credit Agreement dated December 27, 1999 between Vesper Sao
         Paulo Holding, Vesper Sao Paulo, and Lucent.

         5. Common Agreement dated December 27, 1999 between Vesper Sao Paulo
         Holding, Vesper Sao Paulo, Lucent and the Collateral Agent.

         6. Pledge and Related Security Agreements in respect of the Lucent
         financing referred to above.

VESPER

         1. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Local, Que Entre Si Celebram A Agencia Nacional de Telecomunicacoes -
         ANATEL e Canbra Telefonica S.A.

         2. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Longa Distancia Nacional de Ambito Intra-Regional, Que Entre Si
         Celebram A Agencia Nacional de Telecomunicacoes - ANATEL e Canbra
         Telefonica S.A.

         3. The following described lease agreements:

            (i)   LOCATION: Rooms 801, 802, 803 and 806 of the 8th floor with
                  right to use 06 (six) vacancies at the garage - numbers 56,
                  57, 58, 59, 60 and 64 which correspond to the floors
                  mentioned, at the building located at 3131, President Vargas
                  Avenue, Cidade Nova, Rio de Janeiro.
                  TERM: 60 (sixty) months with right to renew for an additional
                  60 (sixty) months.
                  AMOUNT: The monthly rent is R$42.787,00 (forty-two thousand
                  and seven hundred and eighty seven reais).
                  RENEWAL: May 6, 2004.

            (ii)  LOCATION: 24th and 25th floors of the building located at 500,
                  Chile Avenue, Rio de Janeiro with right to use 36 (thirty-six)
                  vacancies at the garage.
                  TERM: 60 (sixty) months with right to renew for an additional
                  60 (sixty) months.
                  AMOUNT: The monthly rent is R$66.000,00 (sixty-six thousand
                  reais).
                  RENEWAL: March 10, 2004.

            (iii) LOCATION: 21st floor of the building located at 500, Chile
                  Avenue, Rio de Janeiro with right to use 18 (eighteen)
                  vacancies at the garage.


                                       9
<PAGE>   94




                  TERM: 12 (twelve) months with right to renew for an additional
                  12 (twelve) months.
                  AMOUNT: The monthly rent is R$33.000,00 (thirty-three thousand
                  reais).
                  RENEWAL: June 6, 2000.

            (iv)  LOCATION: 22nd floor of the building located at 500, Chile
                  Avenue, Rio de Janeiro with right to use 18 (eighteen)
                  vacancies at the garage.
                  TERM: 12 (twelve) months with right to renew for an additional
                  48 (forty-eight) months.
                  AMOUNT: The monthly rent is R$33.000,00 (thirty-three thousand
                  reais).
                  RENEWAL: June 20, 2000.


            (v)   LOCATION: 23rd floor of the building located at 500, Chile
                  Avenue, Rio de Janeiro with right to use 18 (eighteen)
                  vacancies at the garage.
                  TERM: 60 (sixty) months with right to renew for an additional
                  60 (sixty) months.
                  AMOUNT: The monthly rent is R$33.000,00 (thirty-three thousand
                  reais).
                  RENEWAL: May 13, 2004.


            (vi)  LOCATION: 01, Rio Branco Avenue, Santa Lucia, Vitoria,
                  Espirito Santo.
                  TERM: 60 (sixty) months with right to renew for an additional
                  60 (sixty) months.
                  AMOUNT: The monthly rent is R$18.000,00 (eighteen thousand
                  reais).
                  RENEWAL: June 10, 2004.


         4. Technical Services Agreement between Bell Canada and Vesper dated
         May 27, 1999.

         5. Secondment Agreement dated as of May 27, 1999 between Vesper and
         Bell Canada.

         6. Technical Services Agreement dated as of May 27, 1999 between Vesper
         and Bell Canada.

         7. Contrato de Interconexao de Redes de Telecomunicacoes Entre a
         Embratel (Empresa Brasileira de Telecomunicacoes S.A.) e a Vesper.

         8. Contrato de Interconexao de Redes de Telecomunicacoes Entre a Vesper
         e a Concessionarios do STFC - Regiao 1 (Tele Norte Leste).


                                       10
<PAGE>   95



         9. Program Agreement established between the State of Rio de Janeiro
         and Vesper dated July 13, 1999.

         10. Memorandum of Understanding between Vesper and BCP S.A. dated May
         21, 1999.

         11. Memorandum of Understanding between CGI Telecom International Inc.
         and Vesper, dated as of June 23, 1999, and respective amendment dated
         October 15, 1999.

         12. Deed of a promise of purchase and sale of land in the city of Macae
         entered between Vesper and Rocinio Oliveira Fragoso dated July 30,
         1999.

         13. Deed of a promise of purchase and sale of a building in the city of
         Belem entered between Vesper and Angelo Jose Barletta Grisolia and
         Vicente Grisolia Neto dated July 19, 1999.

         14. Equipment Supply Agreement between Ericsson Inc. and Vesper dated
         August 4, 1999.

         15. Commitment Letter dated as of August 10, 1999 from Nortel Networks
         Corporation, Northern Telecom do Brasil Comercio e Servicos Ltda. and
         Northern Telecom do Brasil Industria e Comercio Ltda. to Bell Canada
         International (Brazil Telecom 1) Limited, SLI, Qualcomm Brasil,
         Taquari, VeloCom Brasil, Vesper, Bell Canada, VeloCom, Qualcomm, Rio
         Purus Participacoes Ltda., CFL Participacoes Ltda., Samuel Liberman and
         Guillermo Liberman.

         16. Letter Agreement dated August 10, 1999 by and among Nortel Networks
         Corporation, Northern Telecom do Brasil Comercio e Servicos Ltda. and
         Northern Telecom do Brasil Industria e Comercio Ltda., Bell Canada
         International (Brazil Telecom 1) Limited, SLI, Qualcomm Brasil,
         Taquari, VeloCom Brasil, Vesper, Bell Canada International Inc.,
         Velocom, Qualcomm, Rio Purus Participacoes Ltda., CFL Participacoes
         Ltda., Samuel Liberman and Guillermo Liberman.

         17. Summary of Indicative Terms and Conditions dated August 4, 1999
         proposed by Nortel Networks Corporation.

         18. Contrato de Locacao de Area e Compartilhamento de Infra-Estructura
         entre a Empresa Brasileira de Telecomunicacoes S.A. -EMBRATEL e a
         Vesper

         19. Contrato de Locacao de Sistema de Telecomunicacoes entre a Light
         Telecom Ltda. e a Vesper

         20. Commitment Letter between Ericsson, Qualcomm and Vesper dated
         August 4, 1999.




                                       11
<PAGE>   96

         21. Contract for Services between Vesper and Netstream Telecom Ltda.
         dated as of August 15, 1999.

         22. Instrument for the Construction of Call Center between Vesper and
         Engineering S.A. Servicios Tecnicos dated August 27, 1999.

         23. Interconnection Agreement between Vesper and Intelig
         Telecomunicaciones.

         24. Senior Secured Note Purchase Agreements each dated December 13,
         1999 between Vesper and Nortel Networks Corporation, Qualcomm/Ericsson,
         Harris Corporation and ABN Amro, as agent and related loan
         documentation.

         25. Common Terms Agreement dated December 13, 1999 between Vesper,
         Vesper Holding, ABN Amro and the lenders thereto dated December 1999.

         26. Technical Assistance Agreement between VeloCom and Vesper to be
         effective as of November 30, 1999.

         27. Equipment Supply and Services Agreement dated July 9, 1999 between
         Vesper, Nortel Networks Corporation, Northern Telecom do Brasil
         Industria e Comerico Ltda. and Northern Telecom do Brasil Comerico e
         Servicios Ltda.

         28. License for Packet Switched Network Services issued by Anatel on
         September 23, 1999.

         29. License for Circuit Switched Network Services issued by Anatel on
         September 23, 1999.

         30. License for Dedicated Line Services issued by Anatel on September
         23, 1999.

         31. License for Special Services of Audio and Video Signal issued by
         Anatel on September 23, 1999.

         32. License for Retransmission issued by Anatel on September 23, 1999.

         33. Fiber Contract between Vesper and Energedes dated August 12, 1999.

         34. Switch Site Lease Contract between Vesper and Embratel.

         35. Fiber Contract between Vesper and Metrored dated September 3, 1999.

         36. Colocation Agreement between Vesper and North Brazil Telecom dated
         October 1999.

         37. Memorandum of Understanding between Vesper and NQT for fiber.


                                       12
<PAGE>   97



         38. Memorandum of Understanding between Vesper and Barramas for dark
         fiber and ducts.

         39. Memorandum of Understanding between Vesper and Escelsa for fiber.

         40. Satellite Agreement between Vesper and Embratel dated September 3,
         1999.

         41. Mobile Interconnection Agreements with Telefonica, ATL, TIW, NBT,
         Maxitel, BSE and TIM.

         42. Local Backbone Agreement between Vesper and Escelsa dated October
         20, 1999.

         43. Local and Long Distance Backbone Agreements between Vesper and NQT
         dated October 20, 1999.

         44. Equipment Supply and Services Agreement between Vesper and NEC do
         Brasil for Macapu and Boa Vista.

         45. Equipment Supply and Services Agreement with Priority Call
         Management for Prepaid and Voice Mail Solution.

         46. CPE Equipment Supply Letter of Intent with Motorola.

         47. Consulting Services Agreement with Spectralliance LLC.

         48. CPE Equipment Supply Letter of Intent with LG Information
         Communications.

         49. Fiber Lease Contract with NQT.

         50. Capital Contribution Agreement dated December 13, 1999 between
         Vesper Holdings, Vesper, Bell Canada, Qualcomm, Brasil Holdings, and
         the Collateral Agent.

         51. Global Notes executed by Vesper in favor of Nortel,
         Qualcomm/Ericsson and Harris Corporation dated December 13, 1999.

         52. Exchange Debt Agreement between Vesper, Nortel, Qualcomm, Ericsson
         and Harris Corporation dated December 16, 1999.

         53. Equipment Pledge Agreement dated December 16, 1999 executed by
         Vesper in favor of the Collateral Agent and various related powers of
         attorney.

         54. Receivables Pledge Agreement dated December 16, 1999 between Vesper
         and the Collateral Agent and related powers of attorney.


                                       13
<PAGE>   98



         55. Eight Deposit Account Agreements dated December 16, 1999 executed
         by Vesper in favor of the Collateral Agent.

         56. Contracts Pledge Agreement dated December 16, 1999 executed by
         Vesper in favor of the Collateral Agent and related power of attorney.

         57. Cash Collateral Pledge Agreement dated December 16, 1999 between
         Vesper and the Collateral Agent.

         58. Proceeds Account Pledge Agreement dated December 16, 1999 between
         Vesper and the Collateral Agent.

         59. Mortgages executed by Vesper in connection with Nortel/Qualcomm/
         Ericsson/Harris Corporation financing.

         60. Fee letters executed by Vesper in connection with financings dated
         December 13, 1999.

         61. Paying Agency Agreement dated December 13, 1999 between Vesper and
         Chase Manhattan Bank.

         62. Equipment Supply Agreement dated December 6, 1999 between Vesper
         and Motorola do Brasil.

         63. Financing Commitment letter between Vesper and Motorola do Brasil.

MEGATEL

         1. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Local, Que Entre Si Celebram A Agencia Nacional de Telecomunicacoes -
         ANATEL e MegaTel.

         2. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Longa Distancia Nacional de Ambito Intra-Regional, Que Entre Si
         Celebram A Agencia Nacional de Telecomunicacoes - ANATEL e MegaTel.

         3. The following described lease agreements:

            (i) LOCATION: 11th floor, parts A and B of the building Villa-Lobos,
                with right to use 36 (thirty-six) vacancies at the garage of the
                mentioned building which is located at Nacoes Unidas Avenue
                number 4.777, at Sao Paulo, State of Sao Paulo, Brazil.
                TERM: 60 (sixty) months with right to renew for an additional 60
                (sixty) months.
                AMOUNT: R$37.159,00
                RENEWAL: 06/30/2.004


                                       14
<PAGE>   99

             (ii) LOCATION: 10th floor, part B of the building mentioned above
                  with right to have 18 (eighteen) vacancies at the garage of
                  the same building, located at the same address.
                  TERM: 60 (sixty) months with right to renew for an additional
                  60 (sixty) months.
                  AMOUNT: R$18.579,00
                  RENEWAL: 06/30/2.004


            (iii) LOCATION: 12th floor, parts A and B of the building mentioned
                  above with right to have 36 (thirty-six) vacancies at the
                  garage of the same building, located at the same address.
                  TERM: 60 (sixty) months with right to renew for an additional
                  60 (sixty) months.
                  AMOUNT: R$92.897,50
                  RENEWAL: 06/30/2.004


         4. Know-how Transfer and Technical Services Agreement between Bell
         Canada and MegaTel dated as of July 30, 1999.

         5. Agreement between IBM Brasil Leasing Arrendamento Mercantil S.A. and
         MegaTel dated July 21, 1999.

         6. Letter of Understanding dated as of July 30, 1999 between MegaTel
         and Bell Canada.

         7. Secondment Agreement dated as of July 30, 1999 between Bell Canada
         and MegaTel.

         8. Technical Services Agreement dated as of July 30, 1999 between Bell
         Canada and MegaTel.

         9. Equipment Supply Agreement dated September 27, 1999 between MegaTel
         and Lucent.

         10. Commitment Letter between Lucent Technologies Network Systems do
         Brasil Ltda. and MegaTel dated September 27, 1999.

         11. Interconnection Agreement between MegaTel and Bonari dated August
         15, 1999.

         12. Interconnection Agreement between MegaTel and Embratel dated August
         10, 1999.

         13. Agreement between MegaTel and Netstream S.A. regarding use of
         fiber.

         14. License for Packet Switched Network Services issued by Anatel on
         September 23, 1999.


                                       15
<PAGE>   100


         15. License for Circuit Switched Network Services issued by Anatel on
         September 23, 1999.

         16. License for Dedicated Line Services issued by Anatel on September
         23, 1999.

         17. License for Special Services of Audio and Video Signal issued by
         Anatel on September 23, 1999.

         18. License for Retransmission issued by Anatel on September 23, 1999.

         19. Interconnection Agreement between MegaTel and Telesp dated August
         20, 1999.

         20. Fiber Agreement between MegaTel and Eletropaulo.

         21. Agreement between MegaTel and SAP.

         22. Contrato de Arrendamento Mercantil com a IBM Brasil Leasing
         Arrendamento Mercantil S.A. para o arrendamento mercantil de
         equipamentos de informatica e telecomunicacoes, dentre outros com IBM
         Brasil - Industria, Maquinas e Servicos Ltda. e Northern Telecom do
         Brasil Comercio e Servicos Ltda. ("leasing agreement with IBL for IT
         and Telecom/call center equipment, includes IBM and other IT vendors as
         well as Nortel").

         23. Contrato de fornecimento de equipamentos e servicos de
         telecomunicacoes com a Lucent Technologies Network Systems do Brasil
         Ltda. e outros. ("supply agreement with Lucent Technologies").

         24. Compromisso de compra e venda dos imoveis ("switch buildings
         purchase commitments" - the purchase agreements will b probably signed
         by a finance company which will lease the buildings to us for a 15 year
         term, still under negotiation) 1. Lapa -Rua Heitor Penteado, n(0)
         2.200, Perdizes - Sao Paulo; 2. Jabaquara - Rua Mauro, n(0)s 382 e 384,
         Saude - Sao Paulo; 3. Osasco - Rua Paulo Licio Rizzo, n(0)s 66 e 96,
         Vila Osasco - Osasco; 4. Paraiso - Rua Conselheiro Ramalho, n(0) s 778
         e 768 - Bela Vista - Sao Paulo; 5. Sao Bernardo -Avenida Piraporinha ,
         n(0) 125, Piraporinha - Sao Bernardo do Campo; 6. Campinas - Marechal
         Rondon.

         25. Licenca para transporte de dados - ANATEL ("data transport license"
         - under analysis by regulatory regarding all possible applications)

         26. Credit Agreement dated December 27, 1999 between Megatel, Vesper
         Sao Paulo Cayman, the lenders thereto and the administrative agent.

         27. Common Agreement dated December 27, 1999 between Megatel, Vesper
         Sao Paulo Holding, Lucent and the Collateral Agent.


                                       16
<PAGE>   101



         28. Pledge and Security Agreements and other collateral documents
         executed in connection with the Lucent financing referred to above.

         29. Equipment Supply Agreement dated December 1999 between Megatel and
         Motorola do Brasil.

         30. Interconnection Agreement, dated August 5, 1999, between Intelig
         (Bonari Holding) and Megatel.

         31. Interconnection Agreement, dated August 20, 1999, between Embratel
         and Megatel.

         32. Interconnection Agreement, dated August 20, 1999, between
         Telefonica and Megatel.

         33. Interconnection Agreement, dated August 20, 1999, between Compania
         Telefonica da Borda do Campo and Megatel.

         34. Interconnection Agreement, dated November 16, 1999, between BCP and
         Megatel.

         35. Interconnection Agreement, dated November 26, 1999, between Tess
         and Megatel.

         36. Lease Agreement, dated August 20, 1999, between Megatel and IBM.

         37. Lease Agreement, dated August 20, 1999, between Megatel and IBM.

         38. Lease Agreement, dated August 20, 1999, between Megatel and IBM.

         39. Know-How Transfer and Technical Services Agreement, dated December
         27, 1999, between BCI and Megatel.

         40. Credit Agreement dated as of December 27, 1999, among Vesper Sao
         Paulo Holdings, Megatel, Vesper Cayman Sao Paulo, the Lenders
         thereunder and Societe Generale, New York Branch, as Administrative
         Agent.

         41. Paying Agency Agreement dated as of December 27, 1999, among the
         Japanese Paying Agent, Megatel and Vesper Cayman Sao Paulo.

         42. Share Pledge Agreement, dated December 27, 1999, by and among
         Vesper Holdings, Qualcomm do Brasil S.A., Vesper Cayman Sao Paulo, and
         the Lenders.

         43. Secondment Agreement, dated December 27, 1999 between BCI and
         Megatel.

         44. Substitute Financing Side Letter, dated December 27, 1999, among
         Qualcomm, the Company, BCI, the Lenders and the Agents.


                                       17
<PAGE>   102



         45. Technical Services Agreement dated July 30, 1999, between BCI and
         Vesper, as amended by Amendment No. 1, dated December 23, 1999, between
         the same parties.

         46. Telecom and Eletropaulo Rental Agreement, dated October 22, 1999,
         by and among Megatel, Eletropaulo Telecomunicacoes Ltda. and
         Eletropaulo Metropolitana Eletricidade de Sao Paulo S.A.

         47. Loan Guarantee, dated as of December 27, 1999, made by Megatel in
         favor of the Collateral Agent.

         48. Fee letter dated December 27, 1999, between Megatel and Lucent.

TMC

         1. Limited Liability Company Agreement: dated as of February 11, 1999,
         among SLI, PCN, Argentina LLC, and TMC.

         2. Agreement for Lease of Telecommunications Network dated as of
         January 11, 1999, between Smartel and TMC.

         3. Agreement for Lease of Telecommunications Network dated as of
         January 11, 1999 between Formus Argentina and TMC.

         4. Agreement for Lease of Telecommunications Network dated as of
         January 11, 1999 between Telelatina and TMC.

         5. Management Agreement dated as of February 11, 1999 between Smartel
         and TMC.

         6. Management Agreement dated as of February 11, 1999 between
         Telelatina and TMC.

         7. Management Agreement dated as of February 11, 1999 between Formus
         Argentina and TMC.

         8. Sales And Assignment Agreement dated as of February 11, 1999 between
         Telelatina and TMC.

         9. Trial Agreement, effective as of August 10, 1998 among Lucent
         Technologies World Services Inc., Lucent Technologies S.A Argentina and
         Telelatina. Assigned in favor of TMC on March 11, 1999.

         10. Purchase and Sale Agreement (Products, Software And Services),
         among Lucent Technologies World Services Inc., Lucent Technologies S.A
         Argentina and Telelatina executed on February 20, 1999, February 23,
         1999 and February 26, 1999, respectively. Assigned in favor of TMC on
         March 11, 1999.



                                       18
<PAGE>   103

         11. Lease Agreement with Option to Purchase between Lucent Technologies
         Sociedad Anonima and TMC, dated as of June 25, 1999.

         12. Lease Agreement with Option to Purchase between Lucent Technologies
         Sociedad Anonima and TMC, dated as of June 25, 1999.

         13. Purchase Order between Lucent Technologies World Services Inc.,
         Lucent Technologies S.A Argentina and TMC dated as of July 8, 1999.

         14. Services Contract, dated February 25, 1999 between IMPSAT S.A and
         TMC.

         15. Services Contract, dated April 21,1999 between Codner & Co.
         Personas y Organizaciones S.R.L and TMC.

         16. Lease Contract, dated March 12, 1999 between Eduardo Manuel Stigol
         (Lessor) and Rigoberto Almeida Costa (Lessee). Property Location: Godoy
         Cruz 3046, Apartment 23 "Golf".

         17. Lease Contract, dated March 17, 1999 between Jorge Eduardo Taquini
         (Lessor) and TMC (Lessee). Property Location: Sinclair 3158, Apartment
         9B.

         18. Lease Contract, dated March 17, 1999 between Gerardo Adrian
         Blachman (Lessor) and TMC (Lessee). Property Location: Mendoza 1925,
         4th Floor.

         19. Lease Contract, dated March 26, 1999 between Forobra S.A (Lessor)
         and TMC (Lessee). Property Location: Av. San Martin 638/40.

         20. Lease Contract, dated March 10, 1999 between Financiera Buenos
         Aires S.A(Lessor) and TMC (Lessee). Property Location: Maipu 255, 19th
         Floor, with three (3) fixed parking spaces.

         21. Gratuitous Assignment Of Lease Contract, dated March 10, 1999 among
         Telelatina (Assignor), TMC (Assignee) and Financiera Buenos Aires S.A
         (Lessor). Property Location: Maipu 255, 20th Floor, three (3) fixed
         parking spaces and space on the terrace for installation of
         telecommunication equipment (as gratuitous commodatum).

         22. Lease Contract, dated July 5, 1999 between Consorcio de
         Propietarios de La Calle Ugarteche 2871/73/75/77 (Lessor) and TMC
         (Lessee). Property Location: Ugarteche 2873; space on the terrace of
         the building for the installation of telecommunication equipment.

         23. Lease Contract, dated June 9, 1999 between Consorcio De
         Propietarios Avenida De Los Incas numero 3310 esquina calle CONDE
         numeros 1586 y 1594 Capital Federal (Lessor) and TMC (Lessee). Property
         Location: Av. de los Incas 3310; space on the terrace of the building
         for the installation of telecommunication equipment.


                                       19
<PAGE>   104


         24. Lease Contract, dated June 18, 1999 between COCABA S.R.L (Lessor)
         and TMC (Lessee). Property Location: Arcos 3433; space on the terrace
         of the building for the installation of telecommunication equipment.

         25. Lease Contract, dated June 18, 1999 between Consorcio de
         Propietarios de La Calle ARCOS 2419 (Lessor) and TMC (Lessee). Property
         Location: Arcos 2419; space on the terrace of the building for the
         installation of telecommunication equipment.

         26. Lease Contract, dated June 25, 1999 between Consorcio de
         Propietarios Del Edificio de La Calle Chile1342/44 (Lessor) and TMC
         (Lessee). Property Location: Chile 1342/44; space on the terrace of the
         building for the installation of telecommunication equipment.

         27. Lease Contract, dated June 30, 1999 between Consorcio de
         Propietarios de La Calle Honduras 5597 (Lessor) and TMC (Lessee).
         Property Location: Honduras 5597; space on the terrace of the building
         for the installation of telecommunication equipment.

         28. Lease Contract, dated June 30, 1999 between Consorcio de
         Propietrios de La Calle Medrano 1670 (Lessor) and TMC (Lessee).
         Property Location: Medrano 1670; space on the terrace of the building
         for the installation of telecommunication equipment.

         29. Lease Contract, dated June 18, 1999 between Consorcio de
         Propietarios Edificio Galeria Jardin (Lessor) and TMC (Lessee).
         Property Location: Florida 537/71; space on the terrace of the building
         for the installation of telecommunication equipment.

         30. Electric Supply Contract, dated May 11, 1999 between Edesur S.A and
         TMC.

         31. Service Contract, dated May 17, 1999 between TMC and Tamabru S.A

         32. Lease Contract, dated July 15, 1999 between Consorcio de
         Propietarios Del Edificio Ubicado En La Calle Teniente General Juan D.
         Peron 1457 (Lessor) and TMC, Sucursal Argentina (Lessee). Property
         Location: Teniente General Juan D. Peron 1457, Buenos Aires, space on
         the terrace of the building for the installation of telecommunication
         equipment.

         33. Lease Contract, dated July 8, 1999 between Demaria Construcciones
         S.A. (Lessor) and TMC, Sucursal Argentina (Lessee); Property Location:
         Demaria 4721, Buenos Aires; space on the terrace of the building for
         the installation of telecommunication equipment.



                                       20
<PAGE>   105

         34. Service Order, subscribed between Metrored and TMC, dated as of
         June 15, 1999.

         35. Service Order, subscribed between Metrored and TMC, dated as of
         June 22, 1999.

         36. Purchase Order, subscribed by TMC to Idabour Construcciones, dated
         as of June 15, 1999.

         37. Subscription and Redemption of Mutual Funds, dated July 16, 1999
         between Citibank N.A. and TMC.

         38. Maintenance Service Contract, dated as of July 1,1999 between TMC
         and Lucent Technologies S.A. Argentina.

         39. Lease Contract, dated July 23, 1999 between Consorcio de
         propietarios Ramon Freire 3005 (Lessor) and TMC, Sucursal Argentina
         (Lessee); Property Location: Ramon Freire 3005, Buenos Aires; space on
         the terrace of the building for the installation of telecommunication
         equipment.

         40. Lease Contract, dated July 25, 1999 between Consorcio de
         propietarios Olleros 2344 (Lessor) and TMC, Sucursal Argentina
         (Lessee); Property Location: Olleros 2344, Buenos Aires; space on the
         terrace of the building for the installation of telecommunication
         equipment.

         41. Lease Contract, dated August 20, 1999 between Consorcio de
         Propietarios de Larrea 785 and TMC. Property Location: Larrea 785;
         space on the terrace of the building for the installation of
         telecommunications equipment.

         42. Lease Contract, dated September 13, 1999 between Asoc. Civil y
         Mutual Circular Militar and TMC. Property Location: Santa Fe 760, space
         on the terrace of the building for the installation of
         telecommunications equipment.

         43. Lease Contract, dated October 8, 1999 between Consorcio de
         Propietarios de Av. Gral. Las Heras 2263 and TMC. Property location:
         Heras 2263; space on the terrace of the building for the installation
         of telecommunications equipment.

         44. Lease Contract, dated September 10, 1999 between Prefectura Naval
         Argentina and TMC. Property Location: Edificio Guardacostas; space on
         the terrace of the building for the installation of telecommunications
         equipment.

         45. Lease Contract, dated September 6, 1999 between Consorcio de
         Propietarios de Maure 3149/51 and TMC. Property Location: Maure
         3149/51;


                                       21
<PAGE>   106



         space on the terrace of the building for the installation of
         telecommunications equipment.

         46. Services Contract, dated March 23, 1999 between El Sitio and TMC.

         47. Letter of Intent dated July 28, 1999, between TMC and Transistemas
         S.A.

         48. Purchase Order dated July 8, 1999 between TMC and Lucent
         Technologies S.A. Argentina and Lucent Technologies World Services Inc.
         in respect of $10,739,987 of equipment.

TELELATINA

         1. Memorandum Of Understanding "Memorandum de Entendimiento" dated
         July, 1998 between Telelatina and Datacoop S.A

         2. Management Agreement, as of February 11, 1999 between Telelatina and
         TMC.

         3. Agreement for Lease of Telecommunications Network, as of January 11,
         1999 between Telelatina and TMC.

         4. Lease Contract, dated June 24, 1998 between Consorcio de
         Propietarios del Edificio Ubicado en La Calle Dorrego 2699 (Lessor) and
         TMC (Lessee). Property Location: Dorrego 2699.

         5. Infrastructure Sharing Agreement, as of February 11, 1999 among
         Telelatina, Smartel and Formus Argentina.

         6. Agreement for the Rendering of Services, as of May 31, 1999 between
         Telelatina and Gire S.A.

         7. Sales and Assignment Agreement, as of February 11, 1999 between
         Telelatina and TMC.

SMARTEL

         1. Infrastructure Sharing Agreement, as of February 11, 1999 among
         Telelatina, Smartel and Formus Argentina.

         2. Agreement For Lease of Telecommunications Network, as of January 11,
         1999, between Smartel and TMC.

         3. Management Agreement, as of February 11, 1999 between Smartel and
         TMC.


                                       22
<PAGE>   107



FORMUS ARGENTINA

         1. Management Agreement dated as of February 11, 1999 by and among
         Formus Argentina and TMC.

         2. Agreement for Lease of Telecommunications Network dated as of
         January 11, 1999 by and among Formus Argentina and TMC.

         3. Infrastructure Sharing Agreement dated as of February 11, 1999 by
         and among Telelatina, Formus Argentina and Smartel.

FORMUS CHILE

         Foreign Investment Contract with Chile.

FORMUS COLOMBIA

         1. Purchase order to Wireless Inc. for $125,000 to purchase six 38 GHz
         links.

         2. Purchase Order Agreement between Formus Colombia and Tess dated
         October 1999.

ARGENTINA LLC

         Limited Liability Company Agreement dated as of February 11, 1999,
         among SLI, PCN, Argentina LLC, and TMC.

COLOMBIA LLC

         Consulting Agreement dated January 27, 1998 by Jacobson & Associates,
         Inc. and Colombia LLC.

VESPER CAYMAN

         1. Purchase Fee Letters dated December 13, 1999 between Vesper Cayman
         and ABN Amro.

VESPER SAO PAULO CAYMAN LTDA.

         1. Common Terms Agreement, Credit Agreement and various pledge and
         security documents executed in connection with the Lucent vendor
         financing.

EJEMIL S.A. AND ODECAR S.A.

         1. Memorandum of Understanding between the Company, Ejemil S.A., Odecar
         S.A., Mr. Diego Beltran Storace and El Pais S.A. dated November 29,
         1999.




                                       23
<PAGE>   108




                                  SCHEDULE 4.12

                                  SUBSIDIARIES

                                   VELCOM,INC

                                   [FLOWCHART]




                                       1
<PAGE>   109




                                  SCHEDULE 4.13

                         CAPITALIZATION OF SUBSIDIARIES

VELOCOM BRASIL

         Velocom Brasil has an authorized and issued capital of R$23,377,392.00
         divided into 23,377,392 quotas of par value R$1.00 each. In connection
         with the restructuring of this entity, its capital is being reduced.

BRASIL HOLDINGS

         Brasil Holdings has an authorized capital of US$50,000 divided into
         50,000 shares of par value $1.00 each, of which 2 shares are issued and
         outstanding in the name of VeloCom.

VESPER HOLDING

         Vesper Holding has an authorized and issued capital of R$184,445,760
         divided into 536,000 ordinary shares with no par value and 536,000
         preferred shares with no par value.

VESPER SAO PAULO HOLDING

         Vesper Sao Paulo Holding has an authorized and issued capital of
         R$119,119,000 divided into 119,000 ordinary shares with no par value
         and 119,000 preferred shares with no par value.

VESPER

         Vesper has an authorized and issued capital of R$77,033,010 divided
         into 431,171 ordinary shares with no par value.

VESPER CAYMAN

         Vesper Cayman has an authorized and issued capital of US$1.00 divided
         into 1 share.

MEGATEL

         MegaTel has an authorized and issued capital of R$69,913,000 divided
         into 70,813 ordinary shares with no par value.

VESPER SAO PAULO CAYMAN LTD.

         Vesper Sao Paulo Cayman has an authorized and issued capital of US$1.00
         divided into 1 share.



                                       1
<PAGE>   110


         ENCUMBRANCES

         The shares of Vesper, Vesper Holding, Vesper Sao Paulo Holding and
MegaTel are subject to the terms of the respective shareholders agreements,
constituent documents and Licenses. The shares of Vesper and MegaTel will be
pledged to certain lenders pursuant to the terms of the vendor financing
arrangements currently being negotiated as described in the Schedules to this
Agreement.

TMC

         Capital contributions of US$15,963,953 have been made to TMC. The
         number of shares authorized and issued is 1,000.

TELELATINA

         1. Telelatina has an authorized and issued capital of A$1,000,000
         divided into 1,000,000 shares with a par value of A$1.00 per share.
         There is also an irrevocable capital contribution of A$2,242,326
         recorded on the books of this company.

         2. Sales And Assignment Agreement, as of February 11, 1999 between
         Telelatina and TMC.

VELOCOM ARGENTINA

         VeloCom Argentina has an authorized and issued capital of A$3,000
         divided into 3,000 quotas of par value A$1.00 each.

WLL ARGENTINA

         WLL Argentina has an authorized and issued capital of A$2,000 divided
         into 200 quotas of par value A$10.00 each.

SMARTEL

         Smartel has an authorized and issued capital of A$20,000 divided into
         20,000 shares with a par value of A$1.00 per share. There is also an
         irrevocable capital contribution of A$2,000,000 recorded on the books
         of the Company which has not yet been funded.

PCN

         PCN has an authorized and issued capital of US$100,000, divided into
         100,000 shares with a par value of US$1.00 per share. There is also an
         irrevocable capital contribution of US$4,767,238.86 recorded on the
         books of this company.



                                       2
<PAGE>   111


VELOCOM CHILE

         VeloCom Chile has an authorized and issued capital of CH$910,455
         divided into 910,455 quotas.

EJEMIL S.A.

         Ejemil S.A. has nominal capital.

ODECAR S.A.

         Odecar S.A. has nominal capital.

CHILE HOLDINGS

         Chile Holdings has an authorized capital of US$50,000 divided into
         50,000 shares of par value US$1.00 each, of which 2 shares are issued
         and outstanding in the name of VeloCom.

COLOMBIA HOLDINGS

         Colombia Holdings has an authorized capital of US$50,000 divided into
         50,000 shares of par value US$1.00 each, of which 2 shares are issued
         and outstanding in the name of VeloCom.

FORMUS ARGENTINA

         Formus Argentina has an authorized and issued capital of A$12,000
         divided into 12,000 ordinary shares with a par value of A$1.00.

FORMUS BOLIVIA

         Formus Bolivia has an authorized and issued capital of Bs$10,000,000
         divided into 200 shares or Bs$20,000,000 with a par value of
         Bs$100,000.

FORMUS CHILE

         Formus Chile has an authorized and issued capital of CH$455,000,455
         divided into unlimited equity interest with no par value.

FORMUS COLOMBIA

         Formus Colombia has an authorized and issued capital of C$800,522,200
         divided into 8,005,222 shares with a par value of C$100.


                                       3
<PAGE>   112


FORMUS LA

         Formus LA has one membership interest outstanding which was issued for
         US$100.

FORMUS PERU

         Formus Peru has an authorized and issued capital of NS$2,700 divided
         into 2,700 unlimited equity interest with no par value.

FORMUS VENEZUELA

         Formus Venezuela has an authorized and issued capital of B$4,000,000
         divided into 2,000 shares with a par value of B$10,000.

ARGENTINA LLC

         Argentina LLC has one membership interest outstanding which was issued
         for US$100.

BOLIVIA LLC

         Bolivia LLC has one membership interest outstanding which was issued
         for US$100.

CHILE LLC

         Chile LLC has one membership interest outstanding which was issued for
         US$100.

COLOMBIA LLC

         Colombia LLC has one membership interest outstanding which was issued
         for US$100.

PERU LLC

         Peru LLC has one membership interest outstanding which was issued for
         US$100.

VENEZUELA LLC

         Venezuela LLC has one membership interest outstanding which was issued
         for US$100.

INTERLOOP BVI

         Interloop BVI has an authorized and issued capital of US$ 3,400,000
         divided into 3,400,000 shares with a par value of $1.00 per share.



                                       4
<PAGE>   113



INTERLOOP COLOMBIA

         Interloop Colombia has an authorized and issued capital of
         CP$2,397,950,000 divided into 2,397,950 shares with a par value of
         CP$1.00 per share.




                                       5
<PAGE>   114


                                SCHEDULE 4.14(a)

                           SHARE OWNERSHIP OF COMPANY

                       VELOCOM CAPITAL STRUCTURE - 12/6/99

<TABLE>
<CAPTION>

                                                TOTAL            SERIES A      TOTAL SERIES      SERIES B     TOTAL SERIES
             NAME                    COMMON     COMMON          PREFERRED      A PREFERRED      PREFERRED     B PREFERRED
             ----                    ------     -------        ----------     ------------     ----------     ------------
<S>                                 <C>        <C>              <C>            <C>               <C>          <C>

Telecom Partners II, L.P.            200,000                       855,556
                                   1,300,000                     2,811,111
                                                 1,500,000       1,939,108       5,605,775        833,333          833,333

Centennial Fund V, L.P.              932,600                       652,820
                                                                 2,144,980
                                                                 1,388,831                        250,000

Centennial Fund VI, L.P.                  --                            --                      1,309,809

Centennial Entrepreneurs Fund         28,940                        20,260
V L.P.
                                                                    66,560
                                                                    43,098

Centennial Entrepreneurs Fund             --                            --                         32,745
VI, L.P.

Centennial Holdings I, L.L.C.         38,460                        26,920
                                                                    88,460
                                                 1,000,000          57,275       4,489,204         36,506        1,629,060

Crescendo World Fund, L.L.C.         477,150                       742,234                                              --
                                                                   457,649                        106,033

Crescendo III, L.P.                       --                     2,555,555
                                                                   959,128                        633,333
</TABLE>


<TABLE>
<CAPTION>

                                                FULLY DILUTED         %
             NAME                  OPTIONS        OWNERSHIP       OWNERSHIP
             ----                  -------      -------------    -----------
<S>                                <C>          <C>               <C>

Telecom Partners II, L.P.

                                                   7,939,108        0.1485

Centennial Fund V, L.P.                                   --            --
                                                          --            --
                                                          --            --

Centennial Fund VI, L.P.

Centennial Entrepreneurs Fund                             --            --
V L.P.
                                                          --            --
                                                          --            --

Centennial Entrepreneurs Fund
VI, L.P.

Centennial Holdings I, L.L.C.                             --            --
                                                          --            --
                                                   7,118,264        0.1332

Crescendo World Fund, L.L.C.                              --            --
                                                          --            --

Crescendo III, L.P.                                       --            --
                                                          --            --
</TABLE>




                                       1

<PAGE>   115


                      VELOCOM CAPITAL STRUCTURE - 12/6/99

<TABLE>
<CAPTION>

                                                TOTAL            SERIES A      TOTAL SERIES      SERIES B     TOTAL SERIES
             NAME                    COMMON     COMMON          PREFERRED      A PREFERRED      PREFERRED     B PREFERRED
             ----                    ------     -------        ----------     ------------     ----------     ------------
<S>                                 <C>        <C>              <C>            <C>               <C>          <C>

Eagle Ventures WF, L.L.C.             22,850                        35,544
                                                                    21,916                          5,079

Crescendo III, GbR                        --                            --                         13,059

Crescendo III Executive Fund,             --       500,000              --       4,772,026         18,810          776,314
L.P.

SLI Wireless S.A.                  4,330,709     4,330,709       7,840,000       7,840,000      1,500,000        1,500,000

Formus Communications - Latin      1,574,803     1,574,803       7,866,333       7,866,333        933,333          933,333
America Holdings, LLC

Janco Capital Management, LLC             --                            --                         41,667           41,667

Brad Peery Capital, L.P.                  --                            --                         25,850

Brad Peery Capital Ventures,              --                            --                         21,900
L.P.

Brad Peery Capital                        --                            --                         16,900
International

Brad Peery Capital, Inc.                  --                            --                          2,050           66,700

Mellon Ventures II, L.P.                  --                            --                      1,666,667        1,666,667

Taquari Participacoes S.A.         1,035,064     1,035,064              --              --             --
</TABLE>

<TABLE>
<CAPTION>

                                                FULLY DILUTED         %
             NAME                  OPTIONS        OWNERSHIP       OWNERSHIP
             ----                  -------      -------------    -----------
<S>                                <C>          <C>               <C>


Eagle Ventures WF, L.L.C.                                 --            --
                                                                        --

Crescendo III, GbR

Crescendo III Executive Fund,                      6,048,340        0.1132
L.P.

SLI Wireless S.A.                                 13,670,709        0.2558

Formus Communications - Latin                     10,374,469        0.1941
America Holdings, LLC

Janco Capital Management, LLC                         41,667        0.0008

Brad Peery Capital, L.P.                                                --

Brad Peery Capital Ventures,                                            --
L.P.

Brad Peery Capital                                                      --
International

Brad Peery Capital, Inc.                              66,700        0.0012

Mellon Ventures II, L.P.                           1,666,667        0.0312

Taquari Participacoes S.A.                         1,035,064        0.0194
</TABLE>







                                       2
<PAGE>   116
                      VELOCOM CAPITAL STRUCTURE - 12/6/99

<TABLE>
<CAPTION>

                                                TOTAL           SERIES A       TOTAL SERIES      SERIES B     TOTAL SERIES
             NAME                    COMMON     COMMON          PREFERRED      A PREFERRED      PREFERRED     B PREFERRED
             ----                    ------     -------        ----------     ------------     ----------     ------------
<S>                                 <C>        <C>              <C>            <C>               <C>          <C>

Black Coral Enterprises Inc.         638,164       638,164              --              --             --

C. James Frank                         5,000                         1,862              --             --               --
                                      14,805        19,805                           1,862             --

Sean White                             1,666         1,666              --              --             --               --

Francis McInerney                      1,667         1,667              --              --             --               --

North River Ventures, Inc.             5,000         5,000              --              --             --               --
Pension Plan

Michael Lisogurski                    24,000        24,000              --              --             --               --

Clarence Endy                          1,000         1,000              --              --             --               --
                                                                                                                        --
DIRECTORS, EMPLOYEES AND                  --       651,948              --         131,133        209,999          209,999
OPTIONS


------------------------                        ----------                      ----------                       ---------
TOTAL                                           11,283,826                      30,706,333                       7,657,073
</TABLE>

<TABLE>
<CAPTION>

                                                FULLY DILUTED         %
             NAME                  OPTIONS        OWNERSHIP       OWNERSHIP
             ----                  -------      -------------    -----------
<S>                                <C>          <C>               <C>

Black Coral Enterprises Inc.                         638,164        0.0119

C. James Frank
                                                      21,667        0.0004

Sean White                                             1,666        0.0000

Francis McInerney                                      1,667        0.0000

North River Ventures, Inc.                             5,000        0.0001
Pension Plan

Michael Lisogurski                                    24,000        0.0004

Clarence Endy                                          1,000        0.0000
                                                          --
DIRECTORS, EMPLOYEES AND         3,798,544         4,791,624        0.0897
OPTIONS
                                                          --
                                                          --
------------------------        ----------        ----------        ------
TOTAL                            3,798,544        53,445,776        1.0000
</TABLE>




                                       3
<PAGE>   117


                                SCHEDULE 4.14(b)

              AGREEMENTS RELATING TO EQUITY INTERESTS IN COMPANIES

VELOCOM

         1. Option Agreement dated as of January 15, 1999 among the Company,
         Bell Canada International Inc., Taquari, SLI, Qualcomm, and BID S.A.

         2. Subscription Agreement between Formus and the Company dated August
         20, 1999.

         3. Subscription Agreement between SLI and the Company dated August 20,
         1999.

         4. Subscription Agreement between Taquari and the Company dated August
         20, 1999.

         5. Amended and Restated Investors Agreement dated as of September 27,
         1999 between the Company and its principal stockholders.

         6. Consent and Agreement dated September 22, 1999 between BCI, SLI,
         Qualcomm, Vicunha and the Company.

         7. Equity Subscription Agreements between the Company and each of
         Nicolas Kauser, David Leonard, R. Dwayne House, REINCO Corp., Michael
         S. Quinn, C. James Frank, Michael Lisogurski, North River Ventures,
         Inc. Pension Plan, Francis McInerney, Clarence Endy, Brad Johnson, Sean
         White, Bernard Schotters, David Leonard, Barry Rowan and David
         Tomizuka.

         8. Joinder Agreements between the Company and each of R. Dwayne House,
         REINCO Corp., Nicolas Kauser, Michael S. Quinn, Clarence Endy, David
         Tomizuka, Brad Johnson and Barry Rowan.

         9. Series A Preferred Stock Purchase Agreement dated as of January 26,
         1999 between the Company, Telecom, Centennial and Crescendo.

         10. Second Series A Preferred Stock Purchase Agreement dated as of May
         7, 1999 between the Company, Telecom, Crescendo, Centennial, David J.
         Leonard, Gregory P. Sadler, Fred A. Vierra, Robert McKenzie, C. James
         Frank, R. Dwayne House and Nicolas Kauser.

         11. Employment Letters between the Company and each of David Leonard,
         Charles Schneider, Derek Koecher, Henry Peraza, Michael Casullo, Lisa
         Gamel, Patricia Reichman, R. Dwayne House, John Gowen, Michael Quinn,
         Barry Rowan, Antonio Salles, Steve Dougherty, Greg Sadler, Julia
         Hughes, Nicolas


                                       2
<PAGE>   118


         Kauser, Endy, Brad Johnson, Diego Rodrigues, Willie Hernandez, Mark
         Johnson, Dave Tomizuka, and Phillip Shoemaker.

         12. Stock Option Agreements between the Company and each of David
         Leonard (10/1/98), David Leonard (10/1/98), David Leonard (5/21/99),
         Nicolas Kauser (10/1/98), Nicolas Kauser (5/21/99), Clarence Endy
         (4/12/99), Clarence Endy (5/21/99), Clarence Endy (5/21/99), Barry
         Rowan (7/12/99); Barry Rowan (7/12/99), John Gowen (12/7/98), John
         Gowen (5/21/99), John Gowen (5/21/99), Michael Quinn (7/16/99), Michael
         Quinn (7/16/99), Greg Sadler (12/7/98), Greg Sadler (5/21/99), Greg
         Sadler (5/21/99), R. Dwayne House (1/4/99), R. Dwayne House (5/21/99),
         R. Dwayne House (5/21/99), Michael Casullo (3/15/99), Michael Casullo
         (5/21/99), Derek Koecher (6/7/99), Patricia Reichman (4/1/99), Julia
         Hughes (10/5/98), Julia Hughes (12/7/98), Julia Hughes (12/7/98), Julia
         Hughes (5/21/99), Shaun Orton (5/21/99), Lisa Gamel (3/8/99), Lisa
         Gamel (5/21/99), Brad Johnson (5/3/99), Brad Johnson (5/21/99), Brad
         Johnson (5/21/99), Charles Schneider (7/11/99), Henry Peraza (6/1/99),
         Henry Peraza (6/1/99), Fred Vierra (9/17/98), Fred Vierra (5/21/99) and
         Bernard Schotters (6/18/99), David Tomizuka (10/1/99), Steve Dougherty
         (8/1/99), Antonio Salles (8/1/99), Luis Gonzalez Lanuza (10/1/99) and
         Mario Janovich (10/1/99).

         13. Equity Investment Agreement dated October 21, 1999 between the
         Company and certain of its stockholders.

         14. Purchase Agreement dated December 6, 1999 between the Company and
         the investors set forth therein.

VELOCOM BRASIL

         1. Option Agreement dated as of February 4, 1999 by and between Bell
         Canada International (Brazil Telecom I) Limited and VeloCom Brasil.

         2. Agreement dated as of February 4, 1999 by and between VeloCom Brasil
         and QUALCOMM do Brasil S.A.

         3. Shareholder Agreement between Taquari, SLI, Qualcomm, Bell Canada
         International (Brazil Telecom I) Limited, VeloCom Brasil and Vesper
         Holding, dated February 4, 1999.

BRASIL HOLDINGS

         1. Option Agreement dated as of July 30, 1999 by and between Bell
         Canada International (MegaTel) Limited and Brasil Holdings.

         2. Shareholder Agreement between SLI, QUALCOMM, Bell Canada
         International (MegaTel) Limited, Brasil Holdings and Vesper Sao Paulo
         Holding dated July 30, 1999.


                                       2
<PAGE>   119



         3. Amended and Restated Shareholders Agreement dated as of December 23,
         1999 between the shareholders of Vesper Sao Paulo Holding.

         4. Amended and Restated Shareholders Agreement dated as of December 23,
         1999 between the shareholders of Vesper Holding.

VESPER HOLDING

         1. Shareholder Agreement between Taquari Participacoes S.A.
         ("Taquari"), SLI Wireless S.A. ("SLI"), QUALCOMM do Brasil S.A.
         ("QUALCOMM"), Bell Canada International (Brazil Telecom I) Limited,
         VeloCom Brasil and Vesper Holding, dated February 4, 1999.

         2. Amended and Restated Shareholder Agreement dated as of December 23,
         1999 between the shareholders of Vesper Holding.

VESPER SAO PAULO HOLDING

         1. Shareholder Agreement between SLI, QUALCOMM, Bell Canada
         International (MegaTel) Limited, Brasil Holdings and Vesper Sao Paulo
         Holding dated July 30, 1999.

         2. Amended and Restated Shareholders Agreement dated as of December 23,
         1999 between the shareholders of Vesper Sao Paulo Holdings.

ARGENTINA LLC

         Oral agreement with Alfredo Iribarren for 1% of Formus Argentina LLC's
         interest in TMC at such time that a liquidity event occurs.

COLOMBIA LLC

         Consulting Agreement between Colombia LLC and Jacobsen Consulting dated
         January 27, 1999.




                                       3
<PAGE>   120



                                  SCHEDULE 4.18

                                    LICENSES

VESPER

         1. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Local, Que Entre Si Celebram A Agencia Nacional de Telecomunicacoes -
         ANATEL e Vesper.)

         2. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Longa Distancia Nacional de Ambito Intra-Regional, Que Entre Si
         Celebram A Agencia Nacional de Telecomunicacoes - ANATEL e Vesper.

         3. License for Packet Switched Network Services issued by Anatel on
         September 23, 1999.

         4. License for Circuit Switched Network Services issued by Anatel on
         September 23, 1999.

         5. License for Dedicated Line Services issued by Anatel on September
         23, 1999.

         6. License for Special Services of Audio and Video Signal issued by
         Anatel on September 23, 1999.

         7. License for Retransmission issued by Anatel on September 23, 1999.

Vesper may experience certain delays in meeting its build out obligations under
its licenses. The Company does not believe that the impact of these delays will
be material but there could be resulting fines due to such delays.


MEGATEL

         1. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Local, Que Entre Si Celebram A Agencia Nacional de Telecomunicacoes -
         ANATEL e MegaTel.

         2. Termo de Autorizacao do Servico Telefonico Fixo Comutado, Modalidade
         Longa Distancia Nacional de Ambito Intra-Regional, Que Entre Si
         Celebram A Agencia Nacional de Telecomunicacoes - ANATEL e MegaTel.

         3. Licenca para transporte de dados - ANATEL ("data transport license"
         - under analysis regarding all possible applications).



                                       1
<PAGE>   121


MegaTel may experience certain delays in meeting its build out obligations under
its licenses. The Company does not believe that the impact of these delays will
be material but there could be resulting fines due to such delays.


TELELATINA

         1. By Resolution 2617SC/97 issued by the Secretary of Communications on
         September 4, 1997, Telelatina was granted a license to provide Value
         Added Services, Data Transmission Services and Videoconferencing
         services nationwide.

         2. By Resolution 3064SC/97, issued by the Secretary of Communications
         on October 15, 1997, Telelatina was granted an authorization to use the
         frequency bandwidth from 3,450 Mhz to 3,475 Mhz. and from 3,550 Mhz. to
         3,575 Mhz. The use of these frequencies is governed by Resolution
         2879SC/97 as amended by 869SC/98.

Telelatina has applied for modifications to the build out schedule under its
licenses due to the fact that certain of the equipment to be used by it is still
in the testing phase. The Company expects that each of these requests for
modification will be granted.


SMARTEL

         1. By Resolution 1130SC/98 issued by the Secretary of Communications on
         May 7, 1998, Smartel was granted a license to provide Value Added
         Services, Data Transmission Services, Broadcasting signals carriage
         services and Videoconferencing services.

         2. By Resolution 1247SC/98, issued by the Secretary of Communications
         on May 22, 1998, Smartel was granted an authorization to use on a
         precarious basis, for the AMBA (which area comprises the City of Buenos
         Aires and certain locations nearby), Rosario, Cordoba and Mendoza the
         frequency bandwidth from 26,850 Ghz to 27,350 Ghz. and from 31,075 Ghz.
         to 31,150 Ghz. The use of these frequencies is governed by Resolution
         869SC/98, as amended.

Smartel has applied for modifications to the build out schedule under its
licenses due to the fact that certain of the equipment to be used by it is still
in the testing phase. The Company expects that each of these requests for
modification will be granted.

FORMUS ARGENTINA

         Bands: E Band which totals 575 MHz and consists of the following
         frequencies: 25.85 to 26.35 GHz and 29.175 to 29.25 GHz (awarded
         November 1998). This spectrum assignment may initially be used only in
         the following cities: AMBA (Area Multiple Buenos Aires), La Plata and
         Cordoba.


                                       2
<PAGE>   122



         Services: Data transmission, value added and videoconferencing (awarded
         September and November 1998).

Formus Argentina has applied for modifications to the build out schedule under
its licenses due to the fact that certain of the equipment to be used by it is
still in the testing phase. The Company expects that each of these requests for
modification will be granted.

FORMUS COLOMBIA

         Bands: 300 MHz at 38 GHz; channels 13, 14, 17 (awarded November 1998).
         The license fees for the 38 GHz spectrum license has been increased
         from approximately US$222,000 to approximately US$534,000. This
         increase is effective for the year 2000 payment due January 2000.

         Services: Local carrier and value added (awarded August 1998 and May
         1999)

Formus Colombia may be slightly delayed in connection with its implementation
deadline of the end of November 1999. The Company believes that any delay will
be slight and will not have a material adverse effect on its license.

FORMUS PERU

         Bands:  400 MHz at 38 GHz; channels 1-4 (awarded May 1999).

         Services:  Local carrier and value added (awarded April 1999).

INTERLOOP COLOMBIA

         1. License to provide Basic Commuted Telephone Service in Colombia.
         Such license was granted by Resolution 4262 issued on 9/23/97, expiring
         on 12/23/2007, the scope of this license shall be for the territory of
         Santa Fe de Bogota, DC (Departamento de Curdinamarca), Cali
         (Departamento de Valle del Cauca), Medellin (Departamento de
         Antioquia), Barranquilla (Departamento de Atlantico), Bucaramanga
         (Departamento de Santander), Cartagena (Departamento de Bolivar), Santa
         Marta (Departamento de Magdalena), Pereira (Departamento de Risaralda),
         Cucuta (Departamento del Norte de Santander) y Villavicencio
         (Departamento del Meta);

         2. License to provide Value Added Services, Telematics services, and
         the constitution of an Associate Value Added Services Network, which
         was granted by Resolucion 4472 issued on 10/10/97 expiring on
         10/10/2007.

         3. Interloop Colombia was authorized to use the radioelectric spectrum
         as per Resolution 5195 issued on 29/12/97. By Resolution 106 of 1999,
         Interloop was authorized to use exclusively bands 23 y 3.4 Ghz within
         the cities where it had been awarded with a License until 9/22/2007.



                                       3
<PAGE>   123

Interloop Colombia is not in compliance with certain of its build out
obligations and may face fines or revocation of its license.

ODECAR S.A.

Odecar S.A. was assigned, on December 14, 1999, per Resolution No. 404.99 of the
Direccion Nacional de Comunicaciones of Uruguay, the radioelectric sub-blocks
24.600 GHz - 24.850 GHz in Montevideo and 25,100 GHz - 25.350 GHZ, 25.600 GHZ -
25.850 GHz and 26.100 GHz - 26.350 GHz in Maldonado for use in providing
commercial data transmission service.






                                       4
<PAGE>   124



                                  SCHEDULE 4.20

                                   LIABILITIES

               PLEASE SEE SCHEDULE 4.18 FOR POTENTIAL LIABILITIES
                  UNDER CERTAIN LICENSES HELD BY THE COMPANIES.

THE COMPANY

         1. The Company has posted a US$1 million guarantee in respect of a
         license bid in Uruguay which will be replaced by a US$300,000
         performance bond.

VELOCOM BRASIL

         Guarantee for three months of rent payments by VeloCom Brasil of
         Charles Schneider's residential lease in Sao Paulo, Brazil.

VESPER

         1. Liabilities under cell site and switch site leases entered into by
         Vesper.

         2. Vesper has guaranteed the residential leases of the following
         employees of Vesper:

            (a)         William Dunbar
            (b)         Luis Gentil
            (c)         Norman Gaudreau
            (d)         Jim Greenlaw
            (e)         Paul Newman
            (f)         Pamela Goossen
            (g)         Timothy Quinn
            (h)         Francisco Neves Filho
            (i)         Jean Provencher
            (j)         Jacques Despars
            (k)         Charles Laflamme
            (l)         Edmund del Sol
            (m)         Sebastian Poisson
            (n)         Yuan Ringuetti


         3. Capitalized Leases pursuant to that certain Leasing Agreement with
         IBM Brasil Leasing Arrendamento Mercantil S.A. in the total amount of
         $1,800,000.

         4. Debt incurred pursuant to that certain loan facility agreement
         between Vesper S.A. and Nortel dated as of October 25, 1999.


                                       5
<PAGE>   125



         5. Debt incurred pursuant to note purchase agreements dated December
         16, 1999 between Vesper S.A. and Ericsson Telecomunicacoes S.A., Nortel
         and Harris Corporation Networks.

         6. Debt incurred pursuant to Motorola CPE Supply Agreement and related
         vendor financing.

VESPER HOLDINGS

         1. Guaranty of Indebtedness of Vesper set forth in number 6 above.

MEGATEL

         1. Liabilities under cell site and switch site leases entered into by
         MegaTel.

         2. MegaTel has guaranteed the residential leases of the following
         employees of MegaTel:

            (a)         Norman Taylor
            (b)         Giles Leclerc
            (c)         Roland L'Esperance
            (d)         Claude Page
            (e)         Monique Baril
            (f)         Francois Levesque
            (g)         Robin Constantin
            (h)         Rene Quenneville
            (i)         Roger Croteau
            (j)         Francois Cote
            (k)         Glenda Maillaux
            (l)         Denis Dion
            (m)         Keith Knox

         3. Bridge loan facility by Lucent to MegaTel under the Equipment Supply
         Agreement dated September 27, 1999.

         4. Debt Pursuant to Credit Agreement dated December 27, 1999.

         5. Debt incurred pursuant to Motorola CPE Supply Agreement and related
         vendor financing.

VESPER SAO PAULO HOLDING

         1. Guaranty of Indebtedness of Megatel set forth in number 4 above.



                                       6
<PAGE>   126

TMC

         1. Pursuant to the Lease Contract, dated March 12, 1999 between Eduardo
         Manuel Stigol (Lessor) and Rigoberto Almeida Costa (Lessee). Guarantee
         for three months of rent payments by TMC of Mr. Costa's residential
         lease in Buenos Aires, Argentina.

         2. Liabilities under cell site and switch site leases entered into by
         TMC.

VELOCOM ARGENTINA

         1. VeloCom Argentina has agreed to pay the residential lease for Derek
         Koecher.





                                       7
<PAGE>   127




                                SCHEDULE 4.22(a)

                        COLLECTIVE BARGAINING AGREEMENTS
                 OR EMPLOYMENT AGREEMENTS NOT TERMINABLE AT WILL


VESPER

         As of the date hereof, there exists no agreement between Vesper and any
         union. However, Vesper will need to enter into a collective beginning
         agreement with the union of telecommunication workers.

MEGATEL

         As of the date hereof, there exists no agreement between MegaTel and
         any union. However, MegaTel will need to enter into a collective
         beginning agreement with the union of telecommunication workers.

TMC

         1. Collective Bargaining Agreements: TMC is not currently making
         payments according to any collective bargaining agreement, but there is
         a risk that certain of its employees be deemed to be included under the
         following collective bargaining agreements:

            (i)   Collective Bargaining Agreement for Commercial Employees
                  ("CBACE") Nbr. 130/7.

            (ii)  FOEESITRA (Federacion de Obreros, Especialistas y Empleados de
                  los Servicios e Industria de las Telecomunicaciones de la
                  Republica Argentina).

            (iii) Traveling Salesman Collective Bargaining Agreement for
                  traveling salesmen, Nbr. 308/75.

         No dispute, arbitration, litigation or breach exists under any
         collective bargaining agreement.

         2. TMC Employment Agreements which are not terminable at will without
making severance payments:


                  NAME OF THE EMPLOYEE:

                  ALVAREZ Jose Luis

                  ARCE Walter Javier

                  ASEF Felix Nadir

                  BERTOLA Marcelo E.

                  BLAUZWIRN LABORDE Pablo Ernesto

                                       1

<PAGE>   128
                  NAME OF THE EMPLOYEE:

                  BOSSIO Rafael

                  BRAVO Ricardo Luis

                  BURGUENO SCALONE Juan Manuel

                  CARBONE LORENA Alejandra

                  CAZENAVE Luciana

                  CHOROVICZ Demian

                  COCCIOLO Roberto Anibal

                  COCIMANO Daniel

                  CONTSOMANOLAKY Alejandro

                  CRISTALLO Alejandro

                  CUESTA Fernando Anibal

                  DE LUQUE Mariano

                  ESCALA Nestor Alberto

                  ESPERON Jose Luis

                  FERNANDEZ Maria Jose

                  FERNANDEZ Nestor

                  FOURCADE Juan Edgardo

                  ADRIANO GALLINEA Fabio

                  GARCIA Jose

                  GARCIA Natalia

                  GERARDI Maximiliano

                  GORINI Fernando Gabriel

                  GRANJA Anabella Dafne

                  HORVAT Jacobo

                  IGLESIAS Sergio Gustavo

                  IGOUNET Maria Jose

                  IURCOVICH Patricia

                  JANCZUK Juan Carlos

                  JOVENICH Victor Augusto

                  KRAEFFT Mariano Ricardo

                  L`AVENA Teresa Haydee

                  LISJAK Ariel

                  LOPEZ Pablo David

                  MEDINA Felix Adolfo

                  MELERO Roberto Eduardo

                  MENDEZ GUERIN Nicolas

                  MERLIS Alfredo Guillermo

                  MOIX Roman Angel

                  MOLLO FREYTAZ Carlos

                  MOREY Gustavo Nicolas

                  MUSUMECI Sergio Dario

                  NUGUER Karina


                                       2
<PAGE>   129
                  NAME OF THE EMPLOYEE:

                  PELIZZA Luis Jorge

                  PEREYRA Ricardo Hector

                  PONCE Maria Sandra

                  RICKE William

                  ROBLEDO Mabel

                  ROMEO Mariano

                  RUBIN Ubaldo

                  RUIZ Maria Alejandra

                  SAINT - JEAN Pedro Miguel

                  SALAS GRABOLO Gustavo

                  SAWON Ricardo

                  SCOTTI Alejandro

                  TIBALDO Mauricio Edgardo

                  TORRES Julio Oscar

                  VENENATI Mariano

                  VILLALBA Eduardo Humberto

                  VILLECO Diego

                  ZAIDEL Alejandro

                  ZAYAT Gonzalo Manuel

                  ZUMARRAGA Juan Pablo






VELOCOM ARGENTINA

         VeloCom Argentina employment agreements which are not terminable at
         will without making severance payments:

         1. Rudolfo Pella

         2. Ana Guiqou

         In addition, this entity is responsible for social security "OSDE"
benefits for these employees.





                                       3
<PAGE>   130




                                SCHEDULE 4.22(b)

                     EMPLOYEES AND DIRECTORS OF THE COMPANY

<TABLE>
<CAPTION>


                                                                                                                     TERM OF
        EMPLOYEE                     POSITION                                   SALARY            BENEFITS          EMPLOYMENT*
        --------                     --------                                   ------            --------          -----------
<S>                                  <C>                                       <C>               <C>                <C>

        Fred Vierra            Chairman - Non-Employee                        $  12,000.00        $  3,600.00       At Will
        David Leonard          President & CEO                                $ 300,000.00        $ 90,000.00       At Will
        Nick Kauser            Chief Technology Officer                       $ 120,000.00        $ 36,000.00       At Will
        Barry Rowan            Chief Financial Officer                        $ 225,000.00        $ 52,500.00       At Will
        John Gowen             Chief Development Officer                      $ 200,000.00        $ 60,000.00       At Will
        Michael Quinn          VP Legal & Strategic Affairs                   $ 250,000.00        $ 75,000.00       At Will
        Greg Sadler            VP Finance                                     $ 150,000.00        $ 45,000.00       At Will
        Dwayne House           VP Operations                                  $ 150,000.00        $ 45,000.00       At Will
        Mike Casullo           VP - Info Technology                           $ 110,000.00        $ 33,000.00       At Will
        David Tomizuka         VP - Internet Strategy & Bus. Dev.             $ 200,000.00        $ 60,000.00       At Will
        Mark Johnson           VP - IP Services                               $ 110,000.00        $ 33,000.00       At Will
        Ann Doris              VP - Marketing Strategy/Communications         $ 175,000.00        $ 51,000.00       At Will
        Derek Koecher          Financial Analyst                              $  65,000.00        $ 19,500.00       At Will
        Patti Reichman         Controller                                     $  90,000.00        $ 27,000.00       At Will
        Julia K. Hughes        Executive Assistant                            $  45,000.00        $ 13,500.00       At Will
                               MIS Manager                                    $  35,000.00        $ 10,500.00       At Will
        Lisa Gamel             Administrative Assistant                       $  33,000.00        $  9,900.00       At Will
        Wendy Shantz           Administrative Assistant                       $  40,000.00        $ 12,000.00       At Will
                               Receptionist/Admin Assist                      $  29,000.00        $  9,000.00       At Will
        Brad Johnson           VP Southern Cone                               $ 225,000.00        $ 67,500.00       At Will
        Steve Dougherty        VP Brazil                                      $ 250,000.00        $ 75,000.00       At Will
        Chuck Schneider        Brazil CFO                                     $ 150,000.00        $ 45,000.00       At Will
        Henry Peraza           Pres-Brazil Sm Markets                         $ 150,000.00        $ 45,000.00       At Will
        Barney Schotters       Board Member - Non Employee                    $  12,000.00        $         -
        Bob McKenzie           Board Member - Non Employee                    $  12,000.00        $         -
        Diego Rodriguez        Director of Transition Management              $ 120,000.00        $         -
        Phil Shoemaker         Director of Implementation and                 $ 110,000.00        $ 33,000.00
                               Deployment

through Brazil and Argentina:
        Guillermo Ramirez      Senior Project Manager                          $ 97,750.00        $ 29,000.00
        Ana Guigou             Argentina Admin                                 $ 35,000.00        $ 10,500.00       At Will
        Cristina Diegues       Secretary                                       $ 29,750.00        $  3,000.00       At Will
        Naomi Periera          Secretary                                       $ 25,000.00        $ 18,000.00       At Will
        Rudolfo Pella          Argentine Engineer                              $ 65,000.00        $ 19,500.00       At Will
        Antonio de Salles      Operations Manager                             $ 125,000.00        $ 36,000.00       At Will
</TABLE>


                                       1

<PAGE>   131




                                  SCHEDULE 4.23

                             EMPLOYEE BENEFIT PLANS

VELOCOM

         1. VeloCom Stock Option Plan.

         2. VeloCom Death and Disability Plan.

         3. Vision Care Plan.

         4. Humana Medical PPO Plan.

         5. Reliant Life Insurance Plan.

         6. Delta Dental Plan.

VESPER

         Vesper executive compensation package.

MEGATEL

         MegaTel executive compensation package.

TMC

         1. Insurance policy No. 1996 of Generali Argentina Compania de Seguros
         Patrimoniales regarding labor risk of employees.

         2. Tickets for buying at restaurants "Ticket Restaurant" ($ 10 per
         employee for each working day) and Tickets for buying other goods
         "Ticket Canasta" ($ 150 per employee, per month).

         3. Social security "OSDE", "Docthos", "OSECAC" and Accion Social de
         Empresarios for employees.

         4. Difference of price of social security (Argentine pesos 35 per
         month) in favor of Carlos Esteban Castro.

         5. Other benefits arising out of the labor agreements entered into by:
         (i) Rigoberto Almeida Costa, TMC and Fabio Adriano Gallinea, and (ii)
         William Ricke.

         6. TMC has agreed to institute a phantom stock option plan for senior
         management by year end. This stock option plan is subject to the
         approval of the Company's board of directors.

                                       1

<PAGE>   132





                                  SCHEDULE 4.24

                            RECORDKEEPING COMPLIANCE

VELOCOM CHILE

         VeloCom Chile has not filed certain monthly tax reports with Chilean
         tax authorities. The Company is in the process of making such filings.

FORMUS ARGENTINA

         Certain tax documents are in the process of being filed.
























                                       1