Document:

<PAGE>

                                                                   EXHIBIT 10.25

                      14%  Senior Discount Notes due 2010

                                                             CUSIP No. 44980YAC1

No. 1                                                          $300,000,000

                                   iPCS, INC.

promises to pay to  Cede & Co. or registered assigns, the principal sum of Three
Hundred Million Dollars ($300,000,000) on July 15, 2010.

                Interest Payment Dates:  January 15 and July 15.
                      Record Dates:  January 1 and July 1.

THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE
GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL
OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES
EXCEPT THAT (i) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED
PURSUANT TO SECTION 2.07 OF THE INDENTURE, (ii) THIS GLOBAL NOTE MAY BE
EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE,
(iii) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT
TO SECTION 2.11 OF THE INDENTURE AND (iv) THIS GLOBAL NOTE MAY BE TRANSFERRED TO
A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE COMPANY.

UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE
FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A
NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR
ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A
SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY.  UNLESS THIS
CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY (55 WATER STREET, NEW YORK, NEW YORK) ("DTC"), TO THE COMPANY
OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND
ANY CERTIFICATE ISSUED IS REGISTERED IN THE
<PAGE>

NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER
ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON
IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST
HEREIN.

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS
AMENDED (THE "ACT"), AND, ACCORDINGLY, MAY NOT BE OFFERED, SOLD, PLEDGED OR
OTHERWISE TRANSFERRED WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT OR
BENEFIT OF, U.S. PERSONS, EXCEPT AS SET FORTH IN THE NEXT SENTENCE.  BY ITS
ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE HOLDER:

          (1) REPRESENTS THAT (i) IT IS A "QUALIFIED INSTITUTIONAL
          BUYER" (AS DEFINED IN RULE 144A UNDER THE ACT)(A "QIB"),
          (ii) IT HAS ACQUIRED THIS SECURITY IN AN OFFSHORE
          TRANSACTION IN COMPLIANCE WITH REGULATION S UNDER THE ACT OR
          (iii) IT IS AN INSTITUTIONAL "ACCREDITED INVESTOR" (AS DE
          FINED IN RULE 501(A)(1), (2), (3) OR (7) OF REGULATION D
          UNDER THE ACT (AN "IAI"),

          (2) AGREES THAT IT WILL NOT RESELL OR OTHERWISE TRANSFER
          THIS SECURITY EXCEPT (i) TO THE COMPANY OR ANY OF ITS
          SUBSIDIARIES, (ii) TO A PERSON WHOM THE SELLER REASONABLY
          BELIEVES IS A QIB PURCHASING FOR ITS OWN ACCOUNT OR FOR THE
          ACCOUNT OF A QIB IN A TRANSACTION MEETING THE REQUIREMENTS
          OF RULE 144A, (iii) IN AN OFFSHORE TRANSACTION MEETING THE
          REQUIREMENTS OF RULE 903 OR 904 OF THE ACT, (iv) IN A
          TRANSACTION MEETING THE REQUIREMENTS OF RULE 144 UNDER THE
          ACT, (v) TO AN IAI THAT, PRIOR TO SUCH TRANSFER, FURNISHES
          THE TRUSTEE A SIGNED LETTER CONTAINING CERTAIN
          REPRESENTATIONS AND AGREEMENTS RELATING TO THE TRANSFER OF
          THIS SECURITY (THE FORM OF WHICH CAN BE OBTAINED FROM THE
          TRUSTEE) AND, IF SUCH TRANSFER IS IN RESPECT OF AN AGGREGATE
          PRINCIPAL AMOUNT OF

                                       2
<PAGE>

          NOTES LESS THAN $250,000, AN OPINION OF COUNSEL
          ACCEPTABLE TO THE COMPANY THAT SUCH TRANSFER IS IN
          COMPLIANCE WITH THE ACT, (vi) IN ACCORDANCE WITH ANOTHER
          EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE ACT (AND
          BASED UPON AN OPINION OF COUNSEL ACCEPTABLE TO THE COMPANY)
          OR (vii) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT
          AND, IN EACH CASE, IN ACCORDANCE WITH THE APPLICABLE
          SECURITIES LAWS OF ANY STATE OF THE UNITED STATES OR ANY
          OTHER APPLICABLE JURISDICTION AND

          (3) AGREES THAT IT WILL DELIVER TO EACH PERSON TO WHOM THIS
          SECURITY OR AN INTEREST HEREIN IS TRANSFERRED A NOTICE
          SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND.

AS USED HEREIN, THE TERMS "OFFSHORE TRANSACTION" AND "UNITED STATES" HAVE THE
MEANINGS GIVEN TO THEM BY RULE 902 OF REGULATION S UNDER THE ACT. THE INDENTURE
AND WARRANT AGREEMENT CONTAIN A PROVISION REQUIRING THE TRUSTEE TO REFUSE TO
REGISTER ANY TRANSFER OF THESE SECURITIES IN VIOLATION OF THE FOREGOING.

UNTIL THE SEPARATION DATE (AS DEFINED), THIS NOTE HAS BEEN ISSUED AS, AND MUST
BE TRANSFERRED AS, A UNIT TOGETHER WITH THE ASSOCIATED WARRANTS TO PURCHASE
COMMON STOCK OF iPCS, INC. EACH UNIT CONSISTS OF $1,000 PRINCIPAL AMOUNT OF
NOTES AND A WARRANT TO PURCHASE 9.9061 SHARES OF COMMON STOCK OF iPCS, INC.,
SUBJECT TO ADJUSTMENT UNDER CERTAIN CIRCUMSTANCES.  A COPY OF THE WARRANT
AGREEMENT PURSUANT TO WHICH THE WARRANTS HAVE BEEN ISSUED IS AVAILABLE FROM THE
COMPANY UPON REQUEST.

FOR PURPOSES OF SECTION 1273 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED
(THE "CODE"), THIS SECURITY HAS ORIGINAL ISSUE DISCOUNT.  FOR PURPOSES OF
SECTION 1273 OF THE CODE, THE ISSUE PRICE IS $497.44 AND THE AMOUNT OF ORIGINAL
ISSUE DISCOUNT IS $502.66, IN EACH CASE PER $1,000 PRINCIPAL AMOUNT OF THIS
SECURITY.

                                       3
<PAGE>

FOR PURPOSES OF SECTION 1275 OF THE CODE, THE YIELD TO MATURITY COMPOUNDED
SEMIANNUALLY IS 15.4%.

                                   iPCS, INC.

                                   By: /s/ Timothy M. Yager
                                       ---------------------------
                                       Name:  Timothy M. Yager
                                       Title: President and Chief
                                              Executive Officer

This is one of the Global
Notes referred to in the
within-mentioned Indenture:

CTC ILLINOIS TRUST COMPANY,
as Trustee

By: /s/ J. Bartolini
    ----------------------------
        Authorized Signatory

Dated:   July 12, 2000

                                       4
<PAGE>

                       14% Senior Discount Notes due 2010

          Capitalized terms used herein shall have the meanings assigned to them
in the Indenture referred to below unless otherwise indicated.

          1.   Interest.  iPCS, Inc., a Delaware corporation (the "Company"),
promises to pay interest on the principal amount of this Note at 14% per annum
until maturity, in the manner specified below, and shall pay the Liquidated
Damages, if any, payable pursuant to Section 5 of the Registration Rights
Agreement referred to below.  Interest will not accrue prior to July 15, 2005.
Thereafter, the Company shall pay interest and Liquidated Damages, if any, semi-
annually on January 15 and July 15 of each year, or if any such day is not a
Business Day, on the next succeeding Business Day (each an "Interest Payment
Date").  Interest on the Notes shall accrue from the most recent date to which
interest has been paid or, if no interest has been paid, from July 15, 2005;
provided, however, that if there is no existing Default in the payment of
interest, and if this Note is authenticated between a record date referred to on
the face hereof and the next succeeding Interest Payment Date, interest shall
accrue from such next succeeding Interest Payment Date; provided, further, that
the first Interest Payment Date shall be January 15, 2006. The Company shall pay
interest (including post-petition interest in any proceeding under any
Bankruptcy Law) on overdue principal and premium, if any, from time to time on
demand at a rate that is 1% per annum in excess of the rate then in effect; it
shall pay interest (including post-petition interest in any, proceeding under
any Bankruptcy Law) on overdue installments of interest and Liquidated Damages,
if any (without regard to any applicable grace periods) from time to time on
demand at the same rate to the extent lawful.  Interest shall be computed on the
basis of a 360-day year of twelve 30-day months.

          2.   Method of Payment.  The Company shall pay interest on the Notes
(except defaulted interest) and Liquidated Damages, if any, to the Persons who
are registered Holders of Notes at the close of business on the January 2 or
July 1 next preceding the Interest Payment Date, even if such Notes are
cancelled after such record date and on or before such Interest Payment Date,
except as provided in Section 2.12 of the Indenture with respect to defaulted
interest.  The Notes shall be payable as to principal, premium and Liquidated
Damages, if any, and interest at the office or agency of the Company maintained
for such purpose within or without the City and State of New York, or, at the
option of the Company, payment of interest and Liquidated Damages, if any, may
be made by check mailed to the Holders at their addresses set forth in the
register of Holders; provided, however, that payment by wire transfer of
immediately available funds shall be required with respect to principal of and
interest, premium and Liquidated Damages, if any, on, all Global Notes and all
other Notes the

                                       5
<PAGE>

Holders of which shall have provided wire transfer instructions to the Company
or the Paying Agent. Such payment shall be in such coin or currency of the
United States of America as at the time of payment is legal tender for payment
of public and private debts.

          3.   Paying Agent and Registrar.  Initially, CTC Illinois Trust
Company, the Trustee under the Indenture, shall act as Paying Agent and
Registrar.  The Company may change any Paying Agent or Registrar without notice
to any Holder.  The Company or any of its Subsidiaries may act in any such
capacity.

          4.   Indenture.  The Company issued the Notes under an Indenture dated
as of July 12, 2000 ("Indenture") between the Company, iPCS Equipment, Inc. and
iPCS Wireless, Inc., as Guarantors, and the Trustee.  The terms of the Notes
include those stated in the Indenture and those made part of the Indenture by
reference to the Trust Indenture Act of 1939, as amended (15 U.S. Code (S)(S)
77aaa-77bbbb).  The Notes are subject to all such terms, and Holders are
referred to the Indenture and such Act for a statement of such terms.  To the
extent any provision of this Note conflicts with the express provisions of the
Indenture, the provisions of the Indenture shall govern and be controlling.  The
Notes are obligations of the Company limited to $300,000,000 in aggregate
principal amount.

          5.   Optional Redemption.

               (a)  On or after July 15, 2005, the Company may redeem the Notes
at any time, in whole or in part, upon not less than 30 nor more than 60 days'
notice, at the redemption prices (expressed as percentages of principal amount)
set forth below, plus accrued and unpaid interest and Liquidated Damages, if
any, thereon to the date fixed for redemption, if redeemed during the twelve-
month period beginning on July 15 of the years indicated below:

<TABLE>
<CAPTION>
                     Year                   Percentage
                     ----                   -----------
                     <S>                    <C>
                     2005                      107.000%
                     2006                      104.667%
                     2007                      102.333%
                     2008 and thereafter       100.000%
</TABLE>

          (b)  Notwithstanding the provisions of clause (a) of this Section 5,
prior to July 15, 2003, the Company shall be permitted to redeem up to 35% of
the Accreted Value of the Notes originally issued at a redemption price of 101%
of the Accreted Value thereof, plus accrued and unpaid interest and Liquidated
Damages,

                                       6
<PAGE>

if any, thereon to the date fixed for redemption, with the net cash proceeds of
one or more Equity Offerings (excluding the first $70.0 million in net cash
proceeds received by the Company from the issuance of Equity Interests after the
date of the Indenture); provided, however, that (1) at least 65% of the Accreted
Value of the Notes originally issued remains outstanding immediately after the
occurrence of the redemption, excluding Notes held by the Company or any of its
Subsidiaries; and (2) each redemption occurs within 90 days after the date of
the closing of such an offering.

          6.   Mandatory Redemption.  Except as set forth in paragraph 7 below,
the Company shall not be required to make mandatory redemption payments with
respect to the Notes.

          7.   Repurchase at Option of Holder.

               (a)  If there is a Change of Control, the Company shall be
required to make an offer (a "Change of Control Offer") to repurchase all or any
part (equal to $1,000 or an integral multiple thereof) of each Holder's Notes at
a purchase price equal to (i) 101% of the Accreted Value thereof, plus
Liquidated Damages, if any, thereon to the date fixed for repurchase, if the
repurchase occurs prior to July 15, 2005, or (ii) 101% of the aggregate
principal amount thereof plus accrued and unpaid interest and Liquidated
Damages, thereon, if any, to the date of purchase, if the repurchase occurs on
or after July 15, 2005 (the "Change of Control Payment"). Within 30 business
days following any Change of Control, the Company shall mail a notice to the
Trustee and to each Holder setting forth the procedures governing the Change of
Control Offer as required by the Indenture.

               (b)  If the Company or a Restricted Subsidiary consummates any
Asset Sales, when the aggregate amount of Excess Proceeds exceeds $10.0 million,
the Company shall commence an offer to all Holders of Notes and all holders of
other Indebtedness containing provisions similar to those set forth in the
Indenture with respect to offers to purchase or redeem with the proceeds of
sales of assets (an "Asset Sale Offer") pursuant to Section 3.09 of the
Indenture and such other Indebtedness to purchase the maximum principal amount
of Notes and such other Indebtedness that may be purchased out of the Excess
Proceeds at an offer price in cash in an amount equal to 100% of the Accreted
Value of the Notes, if the repurchase occurs before July 15, 2005, or 100% of
the principal amount thereof plus accrued and unpaid interest if the repurchase
occurs on or after July 15, 2005, and in each case, Liquidated Damages thereon,
if any, to the date fixed for the closing of such offer in accordance with the
procedures set forth in Section 3.09 and such other Indebtedness.

                                       7
<PAGE>

          8.   Notice of Redemption.  Notice of redemption shall be mailed at
least 30 days but not more than 60 days before the redemption date to each
Holder whose Notes are to be redeemed at its registered address.  Notes in
denominations larger than $1,000 may be redeemed in part but only in whole
multiples of $1,000, unless all of the Notes held by a Holder are to be
redeemed.  On and after the redemption date interest ceases to accrue on Notes
or portions thereof called for redemption.

          9.   Denominations, Transfer, Exchange.  The Notes are in registered
form without coupons in denominations of $1,000 and integral multiples of
$1,000.  The transfer of Notes may be registered and Notes may be exchanged as
provided in the Indenture.  The Registrar and the Trustee may require a Holder,
among other things, to furnish appropriate endorsements and transfer documents
and the Company may require a Holder to pay any taxes and fees required by law
or permitted by the Indenture.  The Company need not exchange or register the
transfer of any Note or portion of a Note selected for redemption, except for
the unredeemed portion of any Note being redeemed in part.  Also, the Company
need not exchange or register the transfer of any Notes for a period of 15 days
before a selection of Notes to be redeemed or during the period between a record
date and the corresponding interest payment date.

          10.  Persons Deemed Owners.  The registered Holder of a Note may be
treated as its owner for all purposes.

          11.  Amendment, Supplement and Waiver.  Subject to certain exceptions,
the Indenture or the Notes may be amended or supplemented with the consent of
the Holders of at least a majority in aggregate Accreted Value of the Notes then
outstanding if prior to July 15, 2005, or the aggregate principal amount at
maturity of the then outstanding Notes if on or after July 15, 2005, voting as a
single class, including without limitation, consents obtained in connection with
a purchase of, or tender offer or exchange offer for Notes, and any existing
Default or compliance with any provision of the Indenture or the Notes may be
waived with the consent of the Holders of a majority in aggregate Accreted Value
of the then outstanding Notes voting as a single class, including without
limitation, in consents obtained in connection with a purchase of, or tender
offer or exchange offer for Notes.  Without the consent of any Holder of a Note,
the Indenture or the Notes may be amended or supplemented to cure any ambiguity,
defect or inconsistency, to provide for uncertificated Notes in addition to or
in place of certificated Notes or to alter the provisions of Article 2 hereof
(including the related definitions) in a manner that does not materially
adversely affect any Holder, to provide for the assumption of the Company's or
any Guarantor's obligations to the Holders of the Notes by a successor to the
Company pursuant to Article 5 of the Indenture, to make any change that would
provide any additional rights

                                       8
<PAGE>

or benefits to the Holders of the Notes or that does not adversely affect the
legal rights hereunder of any Holder of the Note, to comply with requirements of
the SEC in order to effect or maintain the qualification of this Indenture under
the TIA, to add a Guarantor pursuant to Section 12.02 of the Indenture, and to
evidence and provide the acceptance of the appointment of a successor Trustee
pursuant to Section 7.08 and 7.09 of the Indenture.

          12.  Defaults and Remedies.  Events of Default include (a) the failure
by the Company to pay any installment of interest on, or Liquidated Damages with
respect to, the Notes, as and when the same becomes due and payable and the
continuance of any such failure for 30 days, (b) the failure of the Company to
pay all or any part of the principal, or premium, if any, on the Notes when and
as the same becomes due and payable at maturity, redemption, by acceleration or
otherwise, including, without limitation, payment of the Change of Control
Payment or the amount set forth in the Asset Sale Offer, or otherwise on Notes
validly tendered and not properly withdrawn pursuant to a Change of Control or
Asset Sale Offer, as applicable, or default in the payment when due of principal
of or premium, if any, on the Notes, whether or not prohibited by any other
provision of the Indenture, (c) the failure by the Company or any of its
Restricted Subsidiaries to comply with any of the provisions of Section 4.10 or
4.14 or Article V of the Indenture, (d) the failure by the Company or any of its
Restricted Subsidiaries, for 30 days after written notice to the Company by the
Trustee or the Holders of at least 25% in aggregate principal amount of the then
outstanding Notes, to comply with any of its other agreements in the Indenture
or the Notes, (e) the default under any mortgage, indenture or instrument under
which there may be secured or evidenced any Indebtedness for money borrowed by
the Company or any of its Restricted Subsidiaries, or the payment of which is
guaranteed by the Company or any of its Restricted Subsidiaries, whether such
Indebtedness or Guarantee now exists, or is created after the date of the
Indenture, if that default (A) is caused by a failure to pay principal of or
premium, if any, or interest on such Indebtedness on the date of such default (a
"Payment Default") or (B) results in the acceleration of such Indebtedness prior
to its express maturity; and, in each case, the outstanding principal amount of
any such Indebtedness, together with the principal amount of any other such
Indebtedness under which there has been a Payment Default or the maturity of
which has been so accelerated, aggregates $5.0 million or more; (f) failure by
the Company or any of its Restricted Subsidiaries to pay final judgments
aggregating in excess of $5.0 million, which judgments are not paid, discharged
or stayed for a period of 60 consecutive days, (g) certain events of bankruptcy
or insolvency with respect to the Company or any of its Restricted Subsidiaries,
(h) certain termination events under the Sprint Agreements and (i) if after the
date of the Indenture but on or prior to December 31, 2000, the Company has not
received at least $70.0 million of gross cash proceeds

                                       9
<PAGE>

from one or more Equity Offering (other than Equity Offerings of Disqualified
Stock of the Company and other than Equity Offerings to Restricted Subsidiaries
of the Company). If any Event of Default occurs and is continuing, the Trustee
or the Holders of at least 25% in principal amount of the then outstanding Notes
may declare all the Notes to be due and payable. Notwithstanding the foregoing,
in the case of an Event of Default arising from certain events of bankruptcy or
insolvency, all outstanding Notes shall become due and payable without further
action or notice. Holders may not enforce the Indenture or the Notes except as
provided in the Indenture. Subject to certain limitations, Holders of a majority
in aggregate principal amount of the then outstanding Notes may direct the
Trustee in its exercise of any trust or power. The Trustee may withhold from
Holders of the Notes notice of any continuing Default or Event of Default
(except a Default or Event of Default relating to the payment of principal or
interest) if it determines that withholding notice is in their interest. The
Holders of a majority in aggregate principal amount of the Notes then
outstanding by notice to the Trustee may on behalf of the Holders of all of the
Notes waive any existing Default or Event of Default and its consequences under
the Indenture except a continuing Default or Event of Default in the payment of
interest on, or the principal of, the Notes. The Company is required to deliver
to the Trustee annually a statement regarding compliance with the Indenture, and
the Company is required upon becoming aware of any Default or Event of Default,
to deliver to the Trustee a statement specifying such Default or Event of
Default.

          13.  Trustee Dealings with Company.  The Trustee, in its individual or
any other capacity, may make loans to, accept deposits from, and perform
services for the Company or its Affiliates, and may otherwise deal with the
Company or its Affiliates, as if it were not the Trustee.

          14.  No Recourse Against Others.  No director, officer, employee,
incorporator or stockholder, of the Company, as such, shall have any liability
for any obligations of the Company under the Notes or the Indenture or for any
claim based on, in respect of, or by reason of, such obligations or their
creation.  Each Holder by accepting a Note waives and releases all such
liability.  The waiver and release are part of the consideration for the
issuance of the Notes such waiver may not be effective to waive liabilities
under the federal securities laws and it is the view of the SEC that such a
waiver is against public policy.

          15.  Authentication.  This Note shall not be valid until authenticated
by the manual signature of the Trustee or an authenticating agent.

                                       10
<PAGE>

          16.  Abbreviations.  Customary abbreviations may be used in the name
of a Holder or an assignee, such as:  TEN COM (= tenants in common), TEN ENT (=
tenants by the entireties), JT TEN (= joint tenants with right of survivorship
and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts
to Minors Act).

          17.  Additional Rights of Holders of Restricted Global Notes and
Restricted Definitive Notes.  In addition to the rights provided to Holders of
Notes under the Indenture, Holders of Restricted Global Notes and Restricted
Definitive Notes shall have all the rights set forth in the Registration Rights
Agreement dated as of July 12, 2000, between the Company and the parties named
on the signature pages thereof (the "Registration Rights Agreement").

          18.  CUSIP Numbers.  Pursuant to a recommendation promulgated by the
Committee on Uniform Security Identification Procedures, the Company has caused
CUSIP numbers to be printed on the Notes and the Trustee may use CUSIP numbers
in notices of redemption as a convenience to Holders.  No representation is made
as to the accuracy of such numbers either as printed on the Notes or as
contained in any notice of redemption and reliance may be placed only on the
other identification numbers placed thereon.

          The Company shall furnish to any Holder upon written request and
without charge a copy of the Indenture and/or the Registration Rights Agreement.
Requests may be made to:

          iPCS, Inc.
          121 West First Street
          Suite 200
          Geneseo, Illinois  61254
          Attention: Chief Executive Officer

                                       11
<PAGE>

                                Assignment Form

To assign this Note, fill in the form below: (I) or (we) assign and transfer
this Note to

________________________________________________________________________________
                 (Insert assignee's soc. sec. or tax I.D. no.)

________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
             (Print or type assignee's name, address and zip code)

and irrevocably appoint ________________________________________________________
to transfer this Note on the books of the Company.  The agent may substitute
another to act for him.

________________________________________________________________________________

Date: ______________

                                   Your Signature: _____________________________
                                   (Sign exactly as your name appears on the
                                   face of this Note)

                                   Signature Guarantee: ________________________

                                       12
<PAGE>

                       Option of Holder to Elect Purchase

          If you want to elect to have this Note purchased by the Company
pursuant to Section 4.10 or 4.14 of the Indenture, check the box below:

          [_] Section 4.10      [_] Section 4.14

          If you want to elect to have only part of the Note purchased by the
Company pursuant to Section 4.10 or Section 4.14 of the Indenture, state the
amount you elect to have purchased: $________

Date:________                      Your Signature: _____________________________
                                   (Sign exactly as your name appears on the
                                   Note)

                                   Signature Guarantee: ________________________

                                   Tax Identification No: ______________________

                                       13
<PAGE>

             SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE

          The following exchanges of a part of this Global Note for an interest
in another Global Note or for a Definitive Note, or exchanges of a part of
another Global Note or Definitive Note for an interest in this Global Note, have
been made:

<TABLE>
<CAPTION>
                                         Amount of increase     Principal Amount
                    Amount of decrease      in Principal            of this             Signature of
                    in Principal Amount        Amount             Global Note        authorized officer
                          of this             of this            following such      of Trustee or Note
Date of Exchange        Global Note         Global Note      decrease (or increase)      Custodian
-------------------------------------------------------------------------------------------------------
<S>                 <C>                  <C>                 <C>                     <C>
</TABLE>

                                       14<PAGE>

                                                                   EXHIBIT 10.27

================================================================================

                             INVESTMENT AGREEMENT

                                     among

                                  iPCS, INC.

                            Blackstone/iPCS L.L.C.

                     Blackstone iPCS Capital Partners L.P.

                   Blackstone Communications Partners I L.P.

                   TCW/Crescent Mezzanine Partners II, L.P.

                        TCW/Crescent Mezzanine Trust II

                       TCW Leveraged Income Trust, L.P.

                      TCW Leveraged Income Trust II, L.P.

                      TCW Leveraged Income Trust IV, L.P.

                     TCW Shared Opportunity Fund II, L.P.

                      Shared Opportunity Fund IIB, L.L.C.

                     TCW Shared Opportunity Fund III, L.P.

                           Dated as of July 12, 2000

================================================================================
<PAGE>

                               TABLE OF CONTENTS
                               -----------------
<TABLE>
<CAPTION>
                                                                                          Page
                                                                                          ----
<S>                                                                                       <C>
ARTICLE I.   Definitions................................................................     1
     Section 1.01  Definitions..........................................................     1

ARTICLE II.  Purchase and Sale of Preferred Stock; Closings.............................     8
     Section 2.01  Purchase and Sale of Series A-1 Preferred Stock......................     8
     Section 2.02  Series A-1 Closing...................................................     9
     Section 2.03  Purchase and Sale of Series A-2 Preferred Stock......................    10
     Section 2.04  Series A-2 Closing...................................................    10
     Section 2.05  Adjustments..........................................................    10
     Section 2.06  Legend on the Preferred Stock........................................    11

ARTICLE III. Representations and Warranties.............................................    11
     Section 3.01  Representations and Warranties of the Company........................    11
     Section 3.02  Representations and Warranties of the Purchasers.....................    28

ARTICLE IV.  Additional Agreements of the Parties.......................................    29
     Section 4.01  Taking of Necessary Action...........................................    29
     Section 4.02  Financial Statements and Other Reports...............................    29
     Section 4.03  Inspection of Property...............................................    31
     Section 4.04  Notification of Certain Matters......................................    31
     Section 4.05  Restrictive Covenants................................................    31
     Section 4.06  Affirmative Covenants................................................    34

ARTICLE V.   Series A-2 Preferred Stock.................................................    35
     Section 5.01  Conditions with Respect to the Series A-2 Closing....................    35

ARTICLE VI.  Miscellaneous..............................................................    40
     Section 6.01  Survival of Representations and Warranties...........................    40
     Section 6.02  Notices..............................................................    40
     Section 6.03  Entire Agreement; Amendment..........................................    41
     Section 6.04  Counterparts; Facsimile..............................................    42
     Section 6.05  Governing Law........................................................    42
     Section 6.06  Public Announcements.................................................    42
     Section 6.07  Fees and Expenses....................................................    42
     Section 6.08  Indemnification......................................................    42
     Section 6.09  Successors and Assigns...............................................    47
     Section 6.10  Jurisdiction.........................................................    47
     Section 6.11  Specific Performance.................................................    47
     Section 6.12  Captions.............................................................    47
     Section 6.13  Severability.........................................................    47
</TABLE>

                                       i
<PAGE>

<TABLE>
<CAPTION>
                                                                                          Page
                                                                                          ----
<S>                                                                                       <C>
     Section 6.14  Mutual Waiver of Jury Trial..........................................    48
     Section 6.15  Knowledge of Company.................................................    48
     Section 6.16  No Recourse..........................................................    48
</TABLE>

                                 Exhibit Index
                                 -------------

Exhibit A-1    Certificate of Designations for Series A-1 Preferred Stock
Exhibit A-2    Certificate of Designations for the Series A-2 Preferred Stock
Exhibit B-1    Mayer, Brown & Platt Series A-1 Preferred Stock Closing Opinion
Exhibit B-2    Blooston, Mordkofsky, Jackson & Dickens Series A-1 Preferred
               Stock Closing Opinion
Exhibit C      Company Certificate
Exhibit D      Purchasers' Certificate

                                      ii
<PAGE>

                             INVESTMENT AGREEMENT
                             --------------------

          INVESTMENT AGREEMENT, dated as of July 12, 2000, by and among iPCS,
INC., a Delaware corporation (the "Company"), Blackstone/iPCS L.L.C., a Delaware
                                   -------
limited liability company, Blackstone iPCS Capital Partners L.P., a Delaware
limited partnership, Blackstone Communications Partners I L.P., a Delaware
limited partnership (collectively, "Blackstone"), and TCW/Crescent Mezzanine
                                    ----------
Partners II, L.P., TCW/Crescent Mezzanine Trust II, TCW/Leveraged Income Trust,
L.P., TCW Leveraged Income Trust II, L.P., TCW Leveraged Income Trust IV, L.P.,
TCW Shared Opportunity Fund II, L.P., Shared Opportunity Fund IIB, L.L.C. and
TCW Shared Opportunity Fund III, L.P. (collectively, "TCW" and, together with
                                                      ---
Blackstone, the "Purchasers").
                 ----------

                             W I T N E S S E T H:
                             -------------------

          WHEREAS, the Company and the Purchasers desire to effect the sale and
purchase of (i) 9,090,909 newly issued shares of Series A-1 Convertible
Participating Preferred Stock of the Company (the "Series A-1 Preferred Stock"),
                                                   --------------------------
as described herein, and (ii) subject to certain conditions, 14,000,000 newly
issued shares of Series A-2 Convertible Participating Preferred Stock of the
Company (the "Series A-2 Preferred Stock" and, together with the Series A-1
              --------------------------
Preferred Stock, the "Preferred Stock"), as described herein;
                      ---------------

          NOW, THEREFORE, in consideration of the premises, representations and
warranties and the mutual covenants and agreements set forth herein and other
good and valuable consideration the receipt of which is hereby acknowledged,
each of the parties hereto agrees as follows:

                                  ARTICLE I.

                                  Definitions
                                  -----------

          Section 1.01  Definitions.  As used in this Agreement, the following
                        -----------
terms shall have the meanings set forth below:

          "Affiliate" or "affiliate" shall mean, with respect to any Person, any
           ---------      ---------
     other Person which directly or indirectly controls or is controlled by or
     is under common control with such Person.  As used in this definition,
     "control" (including its correlative meanings, "controlled by" and "under
     common control with") shall mean possession, directly or indirectly, of
     power to direct or cause the direction of management or policies (whether
     through ownership of securities or partnership or other ownership
     interests, by contract or otherwise).

          "Ancillary Agreements" shall mean the Registration Rights Agreement,
           --------------------
     the Stockholders Agreement, the Certificates of Designations and the
     Transaction Fee Agreement.
<PAGE>

          "Business Day" shall mean any day, other than a Saturday, Sunday or a
           ------------
     day on which commercial banks in the State of New York or Illinois are
     authorized or required by law or executive order to close.

           "Cambridge" shall mean Cambridge Telcom, Inc., an Illinois
            ---------
     corporation.

           "Certificates of Designations" shall mean (i) the Certificate of
            ----------------------------
     Designations for the Series A-1 Preferred Stock in the form set forth on
     Exhibit A-1 attached hereto and (ii) the Certificate of Designations for
     the Series A-2 Preferred Stock in the form set forth on Exhibit A-2
     attached hereto.

           "Change of Control" shall mean the happening of any of the following
            -----------------
     events:

     (i)   any Person or "group" (as defined in Section 13(d) of the Exchange
           Act), excluding a Person who is Current Stockholder, is or becomes
           the beneficial owner (as defined in Rules 13d-3 and 13d-5 under the
           Exchange Act, except that such Person shall be deemed to have
           "beneficial ownership" of all shares that any such Person has the
           right to acquire, whether such right is exercisable immediately or
           only after the passage of time), directly or indirectly, of more than
           50% of the aggregate voting power of securities (including the Common
           Stock) of the Company, Geneseo or Cambridge;

     (ii)  Geneseo, Cambridge and their Affiliates as of the date hereof (the
           "Controlling Shareholders") collectively do not beneficially own more
           shares of voting securities of the Company than any other Person or
           "group" (as defined in Section 13(d) of the Exchange Act) (other than
           the Purchasers and their Affiliates), which Person or group
           beneficially owns more than 35% of such voting securities;

     (iii) any transaction occurs that results in the stockholders of the
           Company, Geneseo or Cambridge immediately prior to such transaction
           being the holders of less than 50% of the aggregate voting power of
           securities of the resulting company immediately after such
           transaction;

     (iv)  a majority of the members of the Board of Directors of the Company
           consists of individuals who are neither (A) members of the Board of
           Directors of the Company on the date hereof or appointed by the
           Purchasers, (B) full time employees or directors of a Current
           Stockholder, but only if such employee or director is not an
           Affiliate of, associated with or employed by a Person (or an
           Affiliate thereof) who at such time is a stockholder of the Company
           but is not a Current Stockholder nor (C) an individual who was
           requested to be placed on the Board of Directors of the Company by a
           Current Stockholder, but only if such individual is not an Affiliate
           of, associated with or employed by a Person (or an Affiliate thereof)
           who at such time is a stockholder of the Company but is not a Current
           Stockholder;

     (v)   a merger, consolidation, sale of assets or other similar business
           combination transaction is consummated and, as a direct result,
           Timothy M. Yager ceases to be the chief executive officer of the
           Company or its successor; or

                                       2
<PAGE>

     (vi) any liquidation, dissolution or winding-up of the Company or any
          dividend or other distribution to stockholders of the Company of all
          or in excess of 50% of the Fair Market Value (as determined in
          accordance with Section 5.1(b) of the Stockholders Agreement) of the
          assets of the Company and its Subsidiaries, taken as a whole, in any
          transaction or series of related transactions.

          "Code" shall mean the Internal Revenue Code of 1986, as amended.
           ----

          "Common Stock" shall mean the Common Stock, par value $0.01 per share,
           ------------
     of the Company.

          "Consent and Agreement" shall mean the Amended and Restated Consent
           ---------------------
     and Agreement dated as of July 12, 2000 among Sprint Spectrum, L.P.,
     SprintCom, Inc., Sprint Communications Company, L.P., WirelessCo., L.P. and
     Nortel Networks Inc. (the successor to which thereunder is Toronto
     Dominion(Texas), as the Administrative Agent of the Senior Credit
     Facility).

          "Current Stockholder" shall mean (i) a Person who is a stockholder of
           -------------------
     the Company as of the date hereof and (ii) Affiliates of such Person as of
     the date hereof.

          "Event of Noncompliance" shall mean any breach or default in any
           ----------------------
     material respect by the Company of any of the covenants contained in this
     Agreement or any of the Ancillary Agreements.

          "Exchange Act" shall mean the Securities Exchange Act of 1934, as
           ------------
     amended.

          "FCC" shall mean the United States Federal Communications Commission.
           ---

          "Financings" shall mean the Senior Credit Facility and the High Yield
           ----------
     Financing.

          "GAAP" shall mean generally accepted accounting principles in the
           ----
     United States of America in effect from time to time.

          "Geneseo" shall mean Geneseo Communications, Inc., an Illinois
           -------
     corporation.

          "Governmental Entity" shall mean any court, department, body, board,
           -------------------
     bureau, administrative agency or commission or other governmental authority
     or instrumentality.

          "High Yield Financing" shall mean the issuance of the Senior Notes and
           --------------------
     the Warrants in accordance with the Offering Memorandum dated July 10, 2000
     of the Company.

          "High Yield Financing Documents" shall mean any and all agreements,
           ------------------------------
     documents and instruments evidencing or governing the High Yield Financing
     and includes the Senior Notes Indenture and the Purchase Agreement.

          "Indebtedness" shall mean at a particular time, without duplication,
           ------------
     (i) any indebtedness for borrowed money or issued in substitution for or
     exchange of indebtedness for borrowed money, (ii) any indebtedness
     evidenced by any note, bond, debenture or other

                                       3
<PAGE>

     debt security, (iii) any indebtedness for the deferred purchase price of
     property or services with respect to which a Person is liable, contingently
     or otherwise, as obligor or otherwise (other than trade payables and other
     current liabilities incurred in the ordinary course of business), (iv) any
     guarantee or commitment by which a Person assures a creditor against loss
     (including letters of credit), (v) any indebtedness guaranteed in any
     manner by a Person (including guarantees in the form of an agreement to
     repurchase or reimburse), (vi) any obligations under capitalized leases
     with respect to which a Person is liable, contingently or otherwise, as
     obligor, guarantor or otherwise, or with respect to which obligations a
     Person assures a creditor against loss and (vii) any indebtedness secured
     by a Lien on a Person's assets.

          "Intellectual Property Rights" shall mean all (i) patents, patent
           ----------------------------
     applications, patent disclosures and inventions (whether patentable or
     unpatentable and whether or not reduced to practice), (ii) trademarks,
     service marks, trade dress, trade names, logos and corporate names,
     internet domain names and registrations and applications for registration
     thereof, together with all of the goodwill associated therewith, (iii)
     copyrights (registered or unregistered) and copyrightable works and
     registrations and applications for registration thereof, (iv) mask works
     and registrations and applications for registration thereof, (v) computer
     software, data, data bases and documentation thereof, (vi) trade secrets
     and other confidential information (including ideas, formulas,
     compositions, know-how, manufacturing and production processes and
     techniques, research and development information, drawings, specifications,
     designs, plans, proposals, technical data, financial and marketing plans
     and customer and supplier lists and information), and (vii) other
     intellectual property rights.

          "Investment" as applied to any Person shall mean (i) any direct or
           ----------
     indirect purchase or other acquisition by such Person of any notes, bonds
     or similar instruments, capital stock, securities or ownership interests
     (including partnership interests and joint venture interests) of any other
     Person and (ii) any capital contribution by such Person to any other
     Person.

          "Liens" shall mean (i) any mortgage, pledge, security interest,
           -----
     encumbrance, lien, adverse claim, preemptive rights (other than those for
     the benefit of the holders of the Preferred Stock) or charge of any kind
     (including any conditional sale or other title retention agreement or lease
     in the nature thereof), (ii) any sale of receivables with recourse against
     the Company or any Subsidiary, or (iii) any filing or agreement to file a
     financing statement as debtor under the Uniform Commercial Code or any
     similar statute other than to reflect ownership by a third party of
     property leased to the Company or any of its Subsidiaries under a lease
     which is not in the nature of a conditional sale or title retention
     agreement.

          "Material Adverse Effect" shall mean a material adverse effect on (i)
           -----------------------
     the assets, business, properties, liabilities, condition (financial or
     otherwise), results of operations or prospects of the Company and its
     Subsidiaries, taken as a whole, (ii) the ability of the Company to perform
     its obligations under this Agreement or any Ancillary Agreements or (iii)
     the validity or enforceability of this Agreement or any Ancillary
     Agreements or the rights or remedies of the Purchasers hereunder or
     thereunder.

          "Minimum Public Offering" shall mean the first underwritten Public
           -----------------------
     Offering in which (i) the Company receives aggregate gross proceeds (before
     deduction of underwriting discounts and expenses of sale) of at least
     $30,000,000 and (ii) the Common Stock has been

                                       4
<PAGE>

     accepted for listing on The New York Stock Exchange, Inc. or admitted for
     quotation to the Nasdaq National Market or such other securities exchange
     or market as Blackstone may approve, subject to official notice of
     issuance.

          "Officer's Certificate" shall mean a certificate signed by the
           ---------------------
     Company's chief executive officer or its chief financial officer stating
     that the officer signing such certificate has made or has caused to be made
     such investigations as are necessary in order to permit him to verify the
     accuracy of the information set forth in such certificate.

          "Permitted Liens" shall mean:
           ---------------

          (i)    tax liens with respect to taxes not yet due and payable or
     which are being contested in good faith by appropriate proceedings and for
     which appropriate reserves have been established in accordance with GAAP;

          (ii)   deposits or pledges made in connection with, or to secure
     payment of, utilities or similar services, workers' compensation,
     unemployment insurance, old age pensions or other social security
     obligations;

          (iii)  purchase money security interests in any property or assets
     acquired by the Company or any Subsidiary;

          (iv)   interests or title of a lessor under any lease permitted by
     this Agreement;

          (v)    mechanics', materialmen's or contractors' liens or encumbrances
     or any similar lien or restriction;

          (vi)   easements, rights-of-way, restrictions and other similar
     charges and Liens not interfering with the ordinary conduct of the business
     of the Company and its Subsidiaries;

          (vii)  liens securing obligations under the Senior Credit Facility;
     and

          (viii) liens constituting Permitted Liens under the Senior Credit
     Facility.

          "Person" or "person" shall mean an individual, corporation, limited
           ------      ------
     liability company, association, partnership, group (as defined in Section
     13(d)(3) of the Exchange Act), trust, joint venture, business trust or
     unincorporated organization, or a government or any agency or political
     subdivision thereof or any other entity of any nature whatsoever.

          "Predecessor Company" shall mean Illinois PCS, LLC, an Illinois
           -------------------
     limited liability company, all of the membership interests in which on the
     date hereof are being contributed by the holders thereof to the Company in
     the Reorganization.

          "Public Offering" shall mean the closing of a public offering of
           ---------------
     shares of Common Stock by the Company in a primary offering pursuant to an
     effective registration statement (other than on Form S-4, Form S-8 or their
     equivalent) filed by the Company under the Securities Act.

                                       5
<PAGE>

          "Purchase Agreement" shall mean the Purchase Agreement, dated as of
           ------------------
     June 29, 2000, among the Company, Equipment, Wireless, Donaldson, Lufkin &
     Jenrette Securities Corporation and TD Securities (USA) Inc.

          "Qualified Public Offering" shall mean an underwritten Public Offering
           -------------------------
     in which (i) the Company receives aggregate gross proceeds (before
     deduction of underwriting discounts and expenses of sale) of at least
     $50,000,000, (ii) the per share price at which such shares are sold in the
     offering (before deduction of underwriting discounts and expenses of sale)
     is at least two times $5.50 per share, subject to adjustment to such price
     pursuant to subsections 5(e), (f), (g), (i) and (j) of the Certificate of
     Designations of the Series A-1 Preferred Stock; provided that if the Series
                                                     --------
     A-2 Preferred Stock has been issued, the $5.50 per share price referred to
     above shall be changed to the weighted average of the issuance price of all
     shares of Preferred Stock that have theretofore been issued and (iii) the
     Common Stock has been accepted for listing on The New York Stock Exchange,
     Inc. or admitted for quotation to the Nasdaq National Market or such other
     securities exchange as Blackstone may approve, subject to official notice
     of issuance.

          "Registration Rights Agreement" shall mean the registration rights
           -----------------------------
     agreement, dated as of the date hereof, among the Purchasers and the
     Company, as amended from time to time.

          "Reorganization" shall mean the reorganization of the Predecessor
           --------------
     Company pursuant to which (i) the Company issued 44,869,643 shares of
     Common Stock to the owners of the Predecessor Company in exchange for all
     of the limited liability company interests of the Predecessor Company owned
     by such owners, (ii) the Company became the sole shareholder of each of
     iPCS Wireless, Inc. ("Wireless"), a Delaware corporation, and iPCS
                           --------
     Equipment, Inc., a Delaware corporation ("Equipment"), and (iii) the
                                               ---------
     Predecessor Company and Wireless were merged with and into each other with
     Wireless as the surviving entity, in each case in accordance with the
     Contribution Agreement dated July 12, 2000 among the Company, Geneseo,
     Cambridge, Cass Communications Management, Inc., Technology Group, LLC,
     Montrose Mutual PCS, Inc., Gridley Enterprises, Inc. and Timothy M. Yager
     (the "Contribution Agreement"), and the merger agreement dated July 12,
           ----------------------
     2000 between the Predecessor Company and Wireless (the "Merger Agreement").
                                                             ----------------

          "SEC" shall mean the United States Securities and Exchange Commission.
           ---

          "Securities Act" shall mean the Securities Act of 1933, as amended.
           --------------

          "Senior Credit Facility" shall mean the senior credit facility, dated
           ----------------------
     July 12, 2000, among Toronto Dominion (Texas), Inc., as Administrative
     Agent, GE Capital Corporation, as the Syndication Agent and the other
     lenders party thereto or any replacement facilities, in each case as
     amended from time to time.

          "Senior Notes" shall mean the 14% Senior Discount Notes of the Company
           ------------
     due 2010.

          "Senior Notes Indenture" shall mean the indenture, dated as of July
           ----------------------
     12, 2000 among the Company, as issuer, Equipment and Wireless, as
     guarantors, and CTC Illinois Trust Company, as trustee.

                                       6
<PAGE>

          "Sprint Management Agreement" shall mean the Sprint PCS Management
           ---------------------------
     Agreement dated as of January 22, 1999, among WirelessCo, L.P., Sprint
     Spectrum L.P., SprintCom, Inc. and the Predecessor Company (as amended,
     supplemented or otherwise modified by Addendum I to the Sprint PCS
     Management Agreement dated as of January 22, 1999, Addendum II to Sprint
     PCS Management Agreement dated as of August 3, 1999, and the Amended and
     Restated Addendum III to Sprint PCS Management Agreement dated as of March
     8, 2000 and Addendum IV to Sprint PCS Management Agreement dated as of July
     12, 2000) and any exhibits, other addenda and other documents incorporated
     by reference in said agreement.

          "Sprint PCS" shall mean, collectively, Sprint Spectrum L.P.,
           ----------
     SprintCom, Inc., Sprint Communications Company, L.P. and Wireless Co. L.P.,
     together with their successors and assigns.

          "Sprint Services Agreement" shall mean the Sprint PCS Services
           -------------------------
     Agreement dated as of January 22, 1999 between the Predecessor Company and
     Sprint Spectrum L.P. and any exhibits, addenda and other documents
     incorporated by reference in said agreement.

          "Sprint Spectrum Trademark and Service Mark License Agreement" shall
           ------------------------------------------------------------
     mean the Sprint Spectrum Trademark and Service Mark License Agreement dated
     as of January 22, 1999 between the Predecessor Company and Sprint Spectrum
     L.P. and any exhibits, addenda and other documents incorporated by
     reference in said agreement.

          "Sprint Trademark and Service Mark License Agreement" shall mean the
           ---------------------------------------------------
     Sprint Trademark and Service Mark License Agreement dated as of January 22,
     1999 between the Predecessor Company and Sprint Communications and any
     exhibits, addenda and other documents incorporated by reference in said
     agreement.

          "Subscribers" shall mean the aggregate number of Persons who pay the
           -----------
     Company or its Subsidiaries to use personal communications services.

          "Supply Agreement" shall mean the CDMA 1900 Sprintcom Additional
           ----------------
     Affiliate Supply Agreement dated as of May 11, 1999, between Wireless as
     successor to the Predecessor Company and Nortel Networks Inc., as amended
     on July 11, 2000 and as may be further amended, supplemented or restated
     from time to time, and any exhibits, addenda and other documents
     incorporated by reference in said agreement.

          "Tax Returns" shall mean any return, amended return or other report
           -----------
     required to be filed with respect to any Tax, including declaration of
     estimated tax and information returns.

          "Taxes" shall mean any federal, state, local or foreign taxes,
           -----
     including but not limited to income, gross receipts, windfall profits,
     value added, severance, property, production, sales, use, transfer,
     license, excise, franchise, employment, withholding or similar taxes,
     together with any interest, additions to tax or penalties with respect
     thereto and any interest in respect of such penalties.

          "Temporary Cash Investments" means (i) Investments in marketable,
           --------------------------
     direct obligations issued or guaranteed by the United States of America, or
     of any governmental agency or political subdivision thereof, maturing
     within 365 days of the date of purchase,

                                       7
<PAGE>

     (ii) Investments in certificates of deposit issued by a bank organized
     under the laws of the United States of America or any state thereof or the
     District of Columbia, in each case having capital, surplus and undivided
     profits totaling more than $500,000,000 and rated at least A by Standard &
     Poor's Ratings Service and A-2 by Moody's Investors Service, Inc. maturing
     within 365 days of purchase or (iii) Investments not exceeding 365 days in
     duration in money market funds that invest substantially all of such funds'
     assets in the Investments described in clauses (i) and (ii) above.

          "Transaction Fee Agreement" shall mean the transaction fee letter,
           -------------------------
     dated as of the date hereof, between the Company and Blackstone Management
     Partners III L.L.C.

          "Warrants" shall mean warrants to purchase Common Stock issued
           --------
     together with the Senior Notes as part of the High Yield Financing.

          "Wholly Owned Subsidiary" shall mean, with respect to any Person, a
           -----------------------
     Subsidiary of which all of the outstanding capital stock or other ownership
     interests (other than any director's qualifying shares or investments by
     foreign nationals mandated by applicable law) are owned by such Person or
     another Wholly Owned Subsidiary of such Person.

                                  ARTICLE II.

                Purchase and Sale of Preferred Stock; Closings
                ----------------------------------------------

          Section 2.01  Purchase and Sale of Series A-1 Preferred Stock.  On the
                        -----------------------------------------------
date hereof, (i) the Company shall sell to Blackstone, and Blackstone shall
purchase from the Company, 7,272,727 shares of Series A-1 Preferred Stock and
(ii) the Company shall sell to TCW, and TCW shall purchase from the Company,
1,818,182 shares of Series A-1 Preferred Stock, in each case, free and clear of
all Liens, at a purchase price equal to $5.50 per share.

          Section 2.02  Series A-1 Closing.  (a)  The closing of the issuance of
                        ------------------
the Series A-1 Preferred Stock (the "Series A-1 Closing") shall be consummated
                                     ------------------
on July 12, 2000 at the offices of Mayer, Brown & Platt, counsel to the Company,
at 190 South La Salle Street, Chicago, Illinois 60603-3444.

          (b)  Deliveries at Series A-1 Closing.  At the Series A-1 Closing, the
               --------------------------------
following actions shall occur:

          (i)  Purchase Price.  (A) Blackstone, in full payment for the Series
               --------------
A-1 Preferred Stock being purchased by Blackstone hereunder, shall deliver to
the Company immediately available funds, by one or more wire transfers to such
account as the Company shall specify, in the amount of $40,000,000 representing
the purchase price to be paid hereunder pursuant to clause (i) of Section 2.01.

          (B) TCW, in full payment for the Series A-1 Preferred Stock being
purchased by TCW hereunder, shall deliver to the Company immediately available
funds, by one or more wire transfers to such account as the Company shall
specify, in the amount of $10,000,000 representing the purchase price to be paid
hereunder pursuant to clause (ii) of Section 2.01.

                                       8
<PAGE>

          (ii)   Series A-1 Preferred Stock Certificates.  (A) The Company shall
                 ---------------------------------------
deliver to Blackstone certificates for the Series A-1 Preferred Stock to be sold
in accordance with the provisions of clause (i) of Section 2.01 registered in
the respective names and proportions provided to the Company by Blackstone prior
to the Series A-1 Closing.

          (B) The Company shall deliver to TCW certificates for the Series A-1
Preferred Stock to be sold in accordance with the provisions of clause (ii) of
Section 2.01 registered in the respective names and proportions provided to the
Company by TCW prior to the Series A-1 Closing.

          (iii)  Third Party Approvals.  The Company shall deliver written
                 ---------------------
evidence that the consents and approvals set forth on Schedule 3.01(d) have been
obtained.

          (iv)   Legal Opinions.  Mayer, Brown & Platt shall deliver a legal
                 --------------
opinion, dated as of the date hereof, in the form set forth in Exhibit B-1
hereto and Blooston, Mordkofsky, Jackson & Dickens, regulatory counsel to the
Company, shall deliver a legal opinion, dated as of the date hereof, in the form
set forth in Exhibit B-2 hereto.

          (v)    Certificates.  The Company shall deliver an Officer's
                 ------------
Certificate, dated as of the date hereof, in the form of Exhibit C attached
hereto and each of Blackstone and TCW shall deliver a certificate, dated as of
the date hereof, in the form of Exhibit D attached hereto and such other
documents as the Company, Blackstone or TCW may reasonably request.

          (vi)   Fees and Expenses.  The Company shall pay the costs and
                 -----------------
expenses (incurred prior to the date hereof) payable pursuant to Section 6.07
hereof and the fee of $500,000 pursuant to the Transaction Fee Agreement that is
payable in connection with the Series A-1 Closing, in each case to Blackstone
Management Partners III L.L.C. or as it shall otherwise specify in immediately
available funds, by wire transfer to such account or accounts as Blackstone
Management Partners III L.L.C. shall specify.

          (vii)  Transaction Agreements.  The Company and the Purchasers shall
                 ----------------------
execute and deliver the Registration Rights Agreement. The Company, the
Purchasers, Geneseo and Cambridge shall execute and deliver the Stockholders
Agreement. The Company and Blackstone Management Partners III L.L.C. shall
execute and deliver the Transaction Fee Agreement.

          (viii) Certificate of Designations.  The Company shall have
                 ---------------------------
authorized, executed and filed the Certificate of Designations of the Series A-1
Preferred Stock in accordance with Delaware law and the Purchasers shall have
received an original duly executed copy thereof.

          Section 2.03  Purchase and Sale of Series A-2 Preferred Stock. Subject
                        -----------------------------------------------
to the terms and conditions set forth herein, (i) the Company hereby agrees to
issue and sell to Blackstone, and Blackstone hereby agrees to purchase from the
Company, on December 31, 2000 (or such other date as the parties may agree),
11,200,000 shares of Series A-2 Preferred Stock and (ii) the Company hereby
agrees to issue and sell to TCW, and TCW hereby agrees to purchase from the
Company, on December 31, 2000 (or such other date as the parties may agree),
2,800,000 shares of Series A-2 Preferred Stock, in each case free and clear of
all Liens, at a purchase price equal to $5.00 per share.

          Section 2.04  Series A-2 Closing.  The closing of the issuance of the
                        ------------------
Series A-2 Preferred Stock (the "Series A-2 Closing") shall take place at the
                                 ------------------
location specified in Section 2.02(a) and on the date specified in Section 2.03,
or such other place or date as the parties may

                                       9
<PAGE>

mutually agree. At the Series A-2 Closing: (i) the Company will deliver to each
of Blackstone and TCW certificates for the Series A-2 Preferred Stock to be sold
in accordance with the provisions of Section 2.03 registered in the respective
names and proportions provided to the Company by each of Blackstone and TCW,
respectively, no later than two Business Days prior to the Series A-2 Closing,
(ii) Blackstone, in full payment for the Series A-2 Preferred Stock to be
purchased by Blackstone, will deliver to the Company immediately available
funds, by wire transfer to such account as the Company shall specify, in the
amount of $56,000,000, representing the purchase price to be paid hereunder
pursuant to clause (i) of Section 2.03, (iii) TCW, in full payment for the
Series A-2 Preferred Stock to be purchased by TCW, will deliver to the Company
immediately available funds, by wire transfer to such account as the Company
shall specify, in the amount of $14,000,000, representing the purchase price to
be paid hereunder pursuant to clause (ii) of Section 2.03 and (iv) each party
shall take or cause to happen such other actions, and shall execute and deliver
such other instruments or documents, as shall be required under Article V hereof
or as may be reasonably requested.

          Section 2.05  Adjustments.  The Conversion Price (as defined in the
                        -----------
form of Certificate of Designations of the Series A-2 Preferred Stock) of the
Series A-2 Preferred Stock as set forth in the Certificate of Designations of
the Series A-2 Preferred Stock attached hereto as Exhibit A-2 shall be adjusted
prior to the filing of the Certificate of Designations of the Series A-2
Preferred Stock with the Secretary of State of the State of Delaware to reflect
any issues of Common Stock for consideration of less than $5.00 per share, stock
splits, combinations, dividends or other distributions, reclassifications,
exchanges, mergers, consolidations, recapitalizations, sale of assets,
reorganizations or other business combinations or other similar adjustments
involving the capital stock of the Company which occur after the date hereto and
prior to or at the Series A-2 Closing, in each case as provided for and
consistent with the adjustment provisions relating to the Series A-2 Preferred
Stock in the form of the Certificate of Designations for the Series A-2
Preferred Stock attached hereto as Exhibit A-2.

          Section 2.06  Legend on the Preferred Stock.  Each certificate
                        -----------------------------
representing the Preferred Stock will bear the legends required by the
Stockholders Agreement.

                                 ARTICLE III.

                        Representations and Warranties
                        ------------------------------

          Section 3.01  Representations and Warranties of the Company.  The
                        ---------------------------------------------
Company represents and warrants to, and agrees with, the Purchasers as of the
Series A-1 Closing and the Series A-2 Closing (if it occurs) as follows:

          (a)  Organization and Good Standing of the Company.  The Company is a
               ---------------------------------------------
corporation duly organized, validly existing and in good standing under the laws
of Delaware.  The Company has all requisite power and authority to own, operate
and lease its properties and to carry on its business as it is now being
conducted.  The Company is duly qualified to do business and is in good standing
under the laws of each other jurisdiction in which it owns or leases properties,
or conducts any business, so as to require such qualification.  The Company has
delivered to Blackstone true and correct copies of its certificate of
incorporation and bylaws, the certificates of incorporation and bylaws or other
organizational documents of each of its Subsidiaries as in effect

                                       10
<PAGE>

on the date hereof, the certificate of formation and the operating agreement of
the Predecessor Company.

          (b)  Subsidiaries and Investments.  Schedule 3.01(b) lists (i) all
               ----------------------------
Subsidiaries and their respective jurisdictions of incorporation or formation
and (ii) all shares of capital stock or other securities or interests in any
other Person owned by the Company.  The Company owns, directly or indirectly,
all the shares of outstanding capital stock or other equity interests of each
Subsidiary. Except as set forth in Schedule 3.01(b), (i) no equity securities or
other equity interests of any of the Subsidiaries are or may become required to
be issued by reason of any options, warrants, rights to subscribe to, calls or
commitments of any character whatsoever, (ii there are outstanding no securities
or rights convertible into or exchangeable for shares of any capital stock or
other equity interests of any Subsidiary and (ii there are no contracts,
commitments, understandings or arrangements by which any Subsidiary is bound to
issue additional shares of its capital stock or other equity interests or
options, warrants or rights to purchase or acquire any additional shares of its
capital stock.  All of the shares of capital stock or other equity interests of
each of the Subsidiaries are duly and validly authorized, fully paid and non-
assessable and are owned by the Company free and clear of any Liens, other than
Permitted Liens.  Each Subsidiary is duly organized, validly existing and in
good standing under the laws of its jurisdiction of organization, and has all
requisite power and authority and governmental authorizations to own, operate
and lease its properties and to carry on its business as it is now being
conducted, and is duly licensed or qualified to do business in each other
jurisdiction in which it owns or leases properties, or conducts any business, so
as to require such licensure or qualification.

          (c)  Authorization; No Conflicts.  The Company has full power and
               ---------------------------
authority to enter into this Agreement and the Ancillary Agreements to which it
is a party and to consummate the transactions contemplated hereby and thereby.
The execution, delivery and performance of this Agreement and each of the
Ancillary Agreements to which the Company is a party and the consummation of the
transactions contemplated hereby and thereby have been duly authorized by the
Board of Directors of the Company.  No other proceedings on the part of the
Company or the Predecessor Company are necessary to authorize the execution,
delivery and performance of this Agreement and each of the Ancillary Agreements
and the transactions contemplated hereby and thereby.  This Agreement has been
duly and validly executed and delivered by the Company.  This Agreement and each
of the Ancillary Agreements constitutes a valid and binding obligation of the
Company enforceable against the Company in accordance with its terms, except as
limited by applicable bankruptcy, insolvency, reorganization, moratorium or
other laws affecting creditors' rights generally, and limitations on the
availability of equitable remedies.  Except as set forth in Schedule 3.01(c),
the execution, delivery and performance of this Agreement, the Ancillary
Agreements and the Reorganization, the consummation of the transactions by the
Company contemplated hereby and thereby, including the exercise of any rights
hereunder and thereunder, and the compliance by the Company with any of the
provisions hereof and thereof will not conflict with, violate or result in a
breach in any material respect of any provision of, require a consent under, or
constitute a default (or an event which, with notice or lapse of time or both,
would constitute a default) under, or result in the termination of or accelerate
the performance required by, or result in a right of termination or acceleration
under, (i) any provision of the certificate of incorporation, by-laws or other
governing instrument of the Company or the certificate of incorporation, by-laws
or other governing instrument of any Subsidiary or (ii) any agreement,
instrument, permit, concession, grant, franchise, license, judgment, order,
decree, ruling, injunction, statute, law, ordinance, rule or regulation binding
on or otherwise applicable to the Company, the Subsidiaries or their respective
properties or assets, including any agreements to be entered into on the date
hereof.

                                       11
<PAGE>

          (d)  Consents.  Except as set forth in Schedule 3.01(d), no consent,
               --------
approval, order or authorization of, or registration, declaration or filing
with, any Governmental Entity is required on the part of the Company or any of
its Subsidiaries in connection with the execution, delivery and performance of
this Agreement and the Ancillary Agreements by the Company and the consummation
of the transactions by the Company hereunder and thereunder.

          (e)  Capitalization.  Schedule 3.01(e) sets forth (i) the authorized
               --------------
capital stock of the Company, the number of shares of each class of capital
stock issued and outstanding and the number of shares of Common Stock reserved
for issuance in connection with employee benefit, stock option and dividend
reinvestment plans, in each case as of the date hereof and (ii) all options,
warrants, rights to subscribe to, scrip calls, contracts, undertakings,
arrangements and commitments to issue equity securities of the Company, in each
case setting forth the identity of the holder thereof, the exercise or similar
price and the date of expiration or termination thereof.  All of the issued and
outstanding shares of the Company's capital stock have been duly and validly
authorized and issued and are fully paid and non-assessable and are not subject
to any preemptive rights.  No shares of capital stock of the Company are held by
any of its Subsidiaries.  Other than as set forth in Schedule 3.01(e) or
pursuant to this Agreement or the terms of the Ancillary Agreements, (i) no
equity securities of the Company are or may be required to be issued by reason
of any options, warrants, rights to subscribe to, scrip calls or commitments of
any character whatsoever, (ii) there are outstanding no securities or rights
convertible into or exchangeable for shares of any capital stock of the Company
and (iii) there are no contracts, commitments, understandings or arrangements by
which the Company is bound to issue additional shares of its capital stock or
securities or rights convertible into or exchangeable for shares of any capital
stock of the Company, or options, warrants or rights to purchase or acquire any
additional shares of its capital stock.  Except as set forth on Schedule 3.01(e)
or pursuant to the Stockholders Agreement or the terms of the Preferred Stock,
neither the Company nor any of its Subsidiaries is subject to any obligation
(contingent or otherwise) to repurchase or otherwise acquire or retire any of
its capital stock.  Except as set forth in Schedule 3.01(e), there are no
contracts, agreements or understandings between the Company and any Person
granting such Person the right to require the Company to file a registration
statement under the Securities Act with respect to any securities of the Company
owned or to be owned by such Person or to require the Company to include such
securities in any other registration statement filed by the Company under the
Securities Act.  The Preferred Stock to be sold to the Purchasers hereunder,
including the Preferred Stock to be issued as dividends thereon, will not be
subject to any Liens and will, upon issue in accordance with the terms hereof
and thereof, be duly and validly authorized and issued, fully paid, non-
assessable and not subject to any preemptive rights (other than as provided for
in the Stockholders Agreement or the Certificates of Designations) and will be
entitled to the rights, privileges and preferences set forth in the applicable
Certificate of Designations, including conversion into Common Stock in
accordance with the terms thereof. The Certificates of Designations have been
duly authorized by all necessary corporate and any necessary stockholder action
and the Certificate of Designations of the Series A-1 Preferred Stock has been
duly executed by the Company and filed with and certified by the Secretary of
State of the State of Delaware.  The shares of Common Stock issuable upon
conversion of the Preferred Stock have been duly authorized for issuance by the
Company.  Upon any conversion of the Preferred Stock in accordance with the
Certificates of Designations, the Common Stock into which the Preferred Stock
will be converted will not be subject to any Liens and will be duly and validly
authorized and issued, fully paid, non-assessable and not subject to any
preemptive rights.

          (f)  Financial Statements.  The Company has previously delivered to
               --------------------
Blackstone copies of (i) the audited balance sheet of the Predecessor Company as
of December 31, 1999, and

                                       12
<PAGE>

the related audited statement of operations, statement of members' equity and
statement of cash flows for the period from January 22, 1999 (date of inception)
thorough December 31, 1999 and (ii) the unaudited balance sheet of the
Predecessor Company as of May 31, 2000 (the "Balance Sheet"), and the related
                                             -------------
unaudited statement of operations and statement of cash flows for the five-month
period then ended. All of such financial statements fairly present the financial
position of the Predecessor Company as of the dates shown and the results of the
operations, members' equity and cash flows of the Predecessor Company for the
respective fiscal periods or as of the respective dates therein set forth, in
each case subject, as to interim statements, to changes resulting from year-end
adjustments (none of which will be material in amount and effect). All of such
financial statements have been prepared in accordance with GAAP consistently
applied during the periods involved, except for the absence of footnotes as to
interim statements and as otherwise set forth in the notes thereto. Except for
the Company's obligations under the Sprint Agreements (as defined below), the
Company and its Subsidiaries will have no liabilities or obligations of any
nature (absolute, accrued, contingent or otherwise) which are not fully
reflected or reserved against in the balance sheet as of May 31, 2000 included
in such financial statements, except for liabilities that may have arisen in the
ordinary and usual course of business and consistent with past practice since
the date of such financial statements and that, individually or in the
aggregate, do not have and could not reasonably be expected to have a Material
Adverse Effect.

          (g)  Projections.  Schedule 3.01(g) contains a true and complete copy
               -----------
of the latest projections of the consolidated income and cash flows of the
Company and its Subsidiaries for the fiscal year ending December 31, 2000.  Such
projections have been prepared in good faith on the basis of the assumptions set
forth therein, which the Company reasonably believes are fair and reasonable in
light of current and reasonably foreseeable business conditions (it being
understood that no representation or warranty is otherwise given with respect to
the projections).

          (h)  Assets.
               ------

          (i)  Except as set forth on Schedule 3.01(h)(i), the Company and its
Subsidiaries have good and valid title to, valid leasehold interests in, or
valid licenses to use or other sufficient and legally enforceable rights from
the licensor to use, the properties and assets, whether tangible or intangible,
currently used by them, located on their premises or shown on the Balance Sheet
or acquired after the date of the Balance Sheet, free and clear of all Liens,
except for properties and assets disposed of or licensed in the ordinary course
of business since the date of the Balance Sheet and except for Liens disclosed
on the Balance Sheet (including any notes thereto) and Permitted Liens.

          (ii) All of the buildings, equipment, machinery, fixtures,
improvements and other tangible assets of the Company and its Subsidiaries
(whether owned or leased) are structurally sound (in the case of the buildings
and improvements), in good condition and repair (ordinary wear and tear
excepted) and are fit for use in the ordinary course of the business of the
Company and its Subsidiaries as presently conducted and as presently proposed to
be conducted, except where the failure of any such assets to be in such
condition and repair could not reasonably be expected to have a Material Adverse
Effect.

          (i)  Legal Proceedings. Except as set forth on Schedule 3.01(i), there
               -----------------
are no legal, administrative, arbitration or other proceedings, claims, actions
or governmental investigations of any nature pending against the Company or any
of its Subsidiaries or the Predecessor Company or to which the Company or any of
its Subsidiaries or the Predecessor Company or any of their assets

                                       13
<PAGE>

are subject, other than, individually or in the aggregate, as could not
reasonably be expected to have a Material Adverse Effect and, to the knowledge
of the Company, there has not been threatened any such proceeding, claim, action
or governmental investigation against the Company or any of its Subsidiaries or
the Predecessor Company. None of the Company or any of its Subsidiaries or the
Predecessor Company is or has been subject to any order, judgment or decree of
any Governmental Entity specifically pertaining to the Company, its Subsidiaries
or the Predecessor Company. Those matters listed in Schedule 3.0.1(i),
individually or in the aggregate, could not reasonably be expected to have a
Material Adverse Effect.

          (j)   Employee Benefits.  (i)  Schedule 3.01(j) contains a true and
                -----------------
complete list of each "employee benefit plan" (within the meaning of section
3(3) of ERISA, including, without limitation, multiemployer plans within the
meaning of ERISA section 3(37)), stock purchase, stock option, severance,
employment, change-in-control, fringe benefit, collective bargaining, bonus,
incentive, deferred compensation and all other employee benefit plans,
agreements, programs, policies or other arrangements, whether or not subject to
ERISA (including any funding mechanism therefor now in effect or required in the
future as a result of the transaction contemplated by this Agreement or
otherwise), whether formal or informal, oral or written, legally binding or not,
under which any employee or former employee of the Company or any of its
Subsidiaries or the Predecessor Company has any present or future right to
benefits and under which the Company or any Subsidiary or the Predecessor
Company has any present or future liability.  All such plans, agreements,
programs, policies and arrangements shall be collectively referred to as the
"Company Plans".
--------------

          (ii)  With respect to each Company Plan, the Company has delivered to
Blackstone a current, accurate and complete copy (or, to the extent no such copy
exists, an accurate description) thereof and, to the extent applicable: (A) any
related trust agreement or other funding instrument; (B) the most recent
determination letter, if applicable and (C) any summary plan description and
other written communications (or a description of any legally binding oral
communications) by the Company or any of its Subsidiaries or the Predecessor
Company to their employees concerning the extent of the benefits provided under
a Company Plan; and (D) for the most recent year, to the extent applicable or
existing (1) the Form 5500 and attached schedule, (2) audited financial
statements, (3) actuarial valuation reports and (4) attorney's response to an
auditors' request for information.

          (iii) (A) Each Company Plan has been established and administered in
accordance with its terms, and in compliance with the applicable provisions of
ERISA, the Code and other applicable laws, rules and regulations; (B) each
Company Plan which is intended to be qualified within the meaning of Code
section 401(a) is so qualified and has received a favorable determination letter
as to its qualification, and nothing has occurred, whether by action or failure
to act, that could reasonably be expected to cause the loss of such
qualification; (C) no event has occurred and no condition exists that would
subject the Company, or any of its Subsidiaries, either directly or by reason of
its affiliation with any member of its "Controlled Group" (defined as any
organization which is a member of a controlled group of organizations within the
meaning of Code sections 414(b), (c), (m) or (o)), to any Tax, fine, Lien,
penalty or other liability imposed by ERISA, the Code or other applicable laws,
rules and regulations; (D) for each Company Plan with respect to which a Form
5500 has been filed, no material change has occurred with respect to the matters
covered by the most recent Form since the date thereof; (E) no "reportable
event" (as such term is defined in ERISA section 4043), "prohibited transaction"
(as such term is defined in ERISA section 406 and Code section 4975) or
"accumulated funding deficiency" (as such term is defined in ERISA

                                       14
<PAGE>

section 302 and Code section 412 (whether or not waived)) has occurred with
respect to any Company Plan; (F) no Company Plan provides retiree welfare
benefits and none of the Company or any of its Subsidiaries has any obligation
to provide any retiree welfare benefits other than as required by Section 4980B
of the Code; (G) neither the Company, nor any member of its Controlled Group has
engaged in, or is a successor or parent corporation to an entity that has
engaged in, a transaction described in Sections 4069 or 4212(c) of ERISA; and
(H) all awards, grants or bonuses made pursuant to any Company Plan have been,
or will be, fully deductible to the Company or its Subsidiaries notwithstanding
the provisions of Section 162(m) of the Code and the regulations promulgated
thereunder.

          (iv)   With respect to each of the Company Plans that is not a
multiemployer plan within the meaning of section 3(37) of ERISA but is subject
to Title IV of ERISA, the assets of each such Company Plan are at least equal in
value to the present value of the accrued benefits (vested and unvested) of the
participants in such Company Plan on a termination and projected benefit
obligation basis, based on the actuarial methods and assumptions indicated in
the most recent actuarial valuation reports.

          (v)    No Company Plan is a "multiemployer plan" (as defined in
Section 3(37) of ERISA) and neither the Company, its Subsidiaries, the
Predecessor Company nor any member of their Controlled Group (collectively,
"ERISA Affiliates") has at any time sponsored or contributed to any
 ----------------
multiemployer plan. No event or condition has occurred in connection with which
the Company or any of its ERISA Affiliates could be subject to any liability or
Lien with respect to any Company Plan under ERISA, the Code or any other
applicable law or under any agreement or arrangement pursuant to or under which
the Company or any of its ERISA Affiliates are required to indemnify any person
against such liability.

          (vi)   With respect to any Company Plan, (A) no actions, suits or
claims (other than routine claims for benefits in the ordinary course) are
pending or, to the knowledge of the Company, threatened, (B) no facts or
circumstances exist that could reasonably be expected to give rise to any such
actions, suits or claims, (C) no written or oral communication has been received
from the Pension Benefit Guarantee Corporation (the "PBGC") in respect of any
                                                     ----
Company Plan subject to Title IV of ERISA concerning the funded status of any
such plan or any transfer of assets and liabilities from any such plan in
connection with the transactions contemplated herein and (D) no administrative
investigation, audit or other administrative proceeding by the Department of
Labor, the PBGC, the Internal Revenue Service or other Governmental Entities are
pending, threatened or in progress.

          (vi)   No Company Plan exists that could result in the payment to any
present or former employee of the Company or any of its Subsidiaries or the
Predecessor Company of any money or other property or accelerate or provide any
other rights or benefits to any present or former employee of the Company or any
of its Subsidiaries or the Predecessor Company, in each case, as a result of the
transactions contemplated by this Agreement, including the Reorganization.
There is no contract, plan or arrangement (written or otherwise) covering any
employee or former employee of the Company or any of its Subsidiaries or the
Predecessor Company that, individually or in the aggregate, could give rise to
the payment of any amount that would not be deductible pursuant to the terms of
Section 280G of the Code.

          (k)   Employees.  To the knowledge of the Company, no executive or key
                ---------
employee of the Company or any Subsidiary and no group of employees of the
Company or any

                                       15
<PAGE>

Subsidiary has any present plans to terminate employment with the Company or
such Subsidiary, as the case may be. Neither the Company nor any of its
Subsidiaries has any material labor relations problems (including any union
organization activities, threatened or actual strikes or work stoppages or
material grievances). Schedule 3.01(k) sets forth the total compensation
(identifying base salary, commissions and bonuses separately) of the 5 most
highly compensated employees of the Company and its Subsidiaries during 1999
(taken as a whole). Except as set forth on Schedule 3.01(k), neither the
                                           ----------------
Company or any of its Subsidiaries nor, to the knowledge of the Company, any of
their employees is subject to any noncompete, nondisclosure, confidentiality,
employment, consulting or similar agreements relating to, affecting or in
conflict with the present or proposed business activities of the Company and its
Subsidiaries, except for agreements between the Company and its Subsidiaries, on
the one hand, and their present and former employees, on the other hand.

          (l)    Absence of Certain Changes.  Except as set forth in Schedule
                 --------------------------
3.01(l), since December 31, 1999:

          (i)    there has been no event, condition or change that individually
     or in the aggregate has had or could reasonably be expected to have a
     Material Adverse Effect;

          (ii)   neither the Company nor any of its Subsidiaries nor the
     Predecessor Company has sold or transferred any of the material assets it
     owns;

          (iii)  neither the Company nor any of its Subsidiaries nor the
     Predecessor Company has incurred any Indebtedness;

          (iv)   neither the Company nor any of its Subsidiaries nor the
     Predecessor Company has changed its accounting policies or procedures as in
     effect on December 31, 1999;

          (v)    neither the Company nor any of its Subsidiaries nor the
     Predecessor Company has amended or in any way altered its certificate of
     incorporation or by-laws;

          (vi)   the Company has not changed the number of shares of the
     authorized or issued capital stock of the Company, neither the Company nor
     the Predecessor Company has issued or granted any option, warrant, call,
     commitment, subscription, right to purchase or agreement of any character
     relating to the authorized or issued capital stock or equity interests of
     the Company or any of its Subsidiaries or the Predecessor Company, or any
     securities convertible into shares of such stock (except for grants of
     options to purchase Common Stock previously approved by the Company's Board
     of Directors to be granted pursuant to Company Plans), split, combined or
     reclassified any shares of the capital stock of the Company, declared, set
     aside or paid any dividend or other distribution (whether in cash, stock or
     property or any combination thereof) in respect of the capital stock of the
     Company or membership interests of the Predecessor Company or redeemed or
     otherwise acquired any shares of such capital stock or membership
     interests;

          (vii)  neither the Company nor any of its Subsidiaries nor the
     Predecessor Company has acquired any material assets other than in the
     ordinary and usual course of business consistent with past practice;

                                       16
<PAGE>

          (viii) neither the Company nor any of its Subsidiaries nor the
     Predecessor Company has entered into employment agreements with any
     employee (other than an agreement terminable at will without any financial
     penalty), or granted any increase in the compensation (including employee
     benefits) of any employee, except for increases (A) in the ordinary course
     of business and consistent with past practice or (B) as required by any
     employment or other agreement, policy or plan currently in effect;

          (ix)   neither the Company nor any of its Subsidiaries nor the
     Predecessor Company has changed any Tax election, made or changed any
     method of accounting with respect to Taxes, filed any amended Tax Return,
     or settled or compromised any proceeding with respect to any material Tax
     liability; and

          (x)    neither the Company nor any of its Subsidiaries nor the
     Predecessor Company has agreed, whether in writing or otherwise, to take
     any action that, if taken, would render any of the representations set
     forth in this Section 3.01(l) untrue.

          (m)    Books and Records. The books and records of and relating to
                 -----------------
each of the Company and its Subsidiaries and the Predecessor Company have been
maintained in accordance with good business practice on a consistent basis and
accurately reflect and evidence the transactions of each such entity in all
material respects.

          (n)    Private Offering of Securities. Assuming the accuracy of the
                 ------------------------------
Purchasers' representations in Sections 3.02(d) and (g) hereof and the last
sentence of Section 3.02(e), the offer, sale and issuance of the Preferred Stock
by the Company under this Agreement will not violate the Securities Act, the
Exchange Act or any applicable state securities or "blue sky" laws.

          (o)    Brokers and Finders.  Except as set forth on Schedule 3.01(o),
                 -------------------
neither the Company nor any of its Subsidiaries nor the Predecessor Company nor
any of their respective officers, directors, employees or agents has utilized
any broker, finder, placement agent or financial advisor or incurred any
liability for any fees or commissions in connection with any of the transactions
contemplated hereby or by the Ancillary Agreements or by the Financings or the
Reorganization.

          (p)    Legal and Regulatory Compliance. Except as set forth in
                 -------------------------------
Schedule 3.01(p):

          (i)    The Company and its Subsidiaries are not, and the Company, its
     Subsidiaries and the Predecessor Company have not been, in default or
     violation in any material respect of any law, statute, order, rule,
     regulation, policy or guideline of any Governmental Entity applicable to
     any of them, and the business of the Company and its Subsidiaries is, and
     the business of the Company and its Subsidiaries and the Predecessor
     Company has been, conducted in compliance in all material respects with all
     applicable laws and regulations.

          (ii)   The Company and its Subsidiaries hold the licenses, permits,
     certificates, franchises, tariff approvals and other authorizations
     identified in Schedule 3.01(p) (the "Licenses").  Each of such Licenses is
                                          --------
     in full force and effect and has not been revoked, suspended, canceled, or
     modified in any adverse way and is not subject to any conditions or
     requirements that are not generally imposed upon the holders thereof.  The
     licenses listed in Schedule 3.01(p) are the only licenses required for the
     conduct of the business of the Company and its Subsidiaries as presently
     conducted.

                                       17
<PAGE>

          (iii)  The Company has no knowledge of any investigation, notice of
     apparent liability, violation, forfeiture or other order or complaint
     issued by or before the FCC or any other Governmental Entity or of any
     other proceedings of or before the FCC or any other Governmental Entity
     relating to the Company or any of its Subsidiaries or the Predecessor
     Company or to any authorizations under which the Company conducts its
     business, not including personal communications service licenses held by
     Sprint or its Affiliates (the "Sprint Licenses").  No proceedings are
                                    ---------------
     pending or, to the knowledge of the Company, threatened to revoke or limit
     any of the Licenses or the Sprint Licenses.

          (iv)   No event has occurred which (i) results in, or after notice or
     lapse of time or both could reasonably be expected to result in,
     revocation, suspension, adverse modifications, non-renewal, impairment,
     restriction or termination of, or order of forfeiture with respect to, any
     of the  Licenses or the Sprint Licenses, or (ii) affects or could
     reasonably be expected in the future to affect any of the rights of the
     Company or its Subsidiaries under any material Licenses or the Sprint
     Licenses.

          (q)    Contracts and Commitments. (i) Except as set forth on Schedule
                 -------------------------
3.01(q), neither the Company nor any of its Subsidiaries nor the Predecessor
Company (immediately prior to the consummation of the Reorganization) is a party
to or bound by any written or oral:

          (A)    collective bargaining agreement or any other contract with any
     labor union, or any severance agreements, programs, policies or
     arrangements;

          (B)    management agreement, any contract for the employment of any
     officer, individual employee or other Person on a full-time, part-time,
     consulting or other basis or any contract providing for the payment of any
     cash or other compensation or benefits upon the consummation of the
     transactions contemplated hereby or any contract relating to loans to any
     officers, directors or Affiliates of the Company or any of the
     Subsidiaries;

          (C)    contract or agreement requiring the consent of any party
     thereto upon a change in control of the Company, containing any provision
     which would result in a modification of any rights or obligations of any
     party thereunder upon a change in control of the Company or which would
     provide any party any remedy (including rescission or liquidated damages)
     in the event of a change in control of the Company, except for any such
     contracts or agreements involving less than $50,000 in any twelve-month
     period;

          (D)    contract under which it has advanced or loaned monies to any
     other Person or otherwise agreed to advance, loan or invest any funds
     (other than advances to the Company's employees in the ordinary course of
     business consistent with past practice), in each case  in excess of
     $50,000;

          (E)    agreement or indenture relating to Indebtedness over $50,000 or
     the mortgaging, pledging or otherwise placing of a Lien on any asset or
     group of assets of the Company or any of its Subsidiaries worth over
     $50,000;

          (F)    lease or agreement under which the Company or any Subsidiary is
     lessee of, or holds or operates, any property, real or personal, owned by
     any other Person, except for any lease of personal property under which the
     aggregate annual rental payments do not exceed $50,000 in any twelve-month
     period;

                                       18
<PAGE>

          (G)  lease or agreement under which the Company or any Subsidiary is
     lessor of or permits any third party to hold or operate any property, real
     or personal, owned or controlled by the Company, except for any lease of
     personal property under which the aggregate annual rental payments received
     by the Company and its Subsidiaries do not exceed $50,000 in any twelve-
     month period;

          (H)  license or royalty agreement;

          (I)  third-party integration or consulting contract involving annual
     consideration in excess of $50,000;

          (J)  nondisclosure, noncompete or confidentiality agreement or
     agreement regarding ownership and rights with regard to software and
     documents related thereto produced by programmers or third-party
     contractors;

          (K)  contract or group of related contracts with the same party or
     group of affiliated parties for the purchase of raw materials, commodities,
     supplies, products, equipment or other personal property or for the receipt
     of services under which the undelivered balance of such products and
     services has a selling price in excess of $50,000 in any twelve-month
     period, including the Supply Agreement;

          (L)  contract or group of related contracts with the same party or
     group of affiliated parties for the sale of raw materials, commodities,
     supplies, products or other personal property or for the furnishing of
     services under which the undelivered balance of such products and services
     has a selling price in excess of $50,000 in any twelve-month period;

          (M)  other contract or group of related contracts with the same party
     or group of affiliated parties continuing over a period of more than six
     months from the date or dates thereof involving more than $50,000 in any
     twelve-month period not terminable by the Company or any Subsidiary upon 30
     days' or less notice without penalty or;

          (N)  contract or group of related contracts involving more than
     $50,000 in any twelve-month period requiring the payment of any fee,
     penalty or other amount by the Company or any Subsidiary in the event of
     any failure to perform or late performance of such contract or contracts by
     the Company or any Subsidiary;

          (O)  contract relating to the marketing, sale, advertising or
     promotion of its products or services involving more than $50,000 in any
     twelve-month period;

          (P)  warranty agreement with respect to products sold or leased or
     services rendered or indemnity agreement with any supplier or other Person
     under which it is obligated to indemnify such supplier or other Person
     against product liability claims;

          (Q)  agreements relating to the ownership of or investments in any
     business or enterprise, including investments in joint ventures and
     minority equity investments;

          (R)  assignment, license, indemnification or other agreement with
     respect to any intangible property (including any Intellectual Property
     Rights);

                                       19
<PAGE>

          (S)    agreement under which it has granted any Person any
     registration rights with respect to the Company's securities (including
     demand or piggyback registration rights);

          (T)    material broker, agent, sales representative, sales or
     distribution agreement or agreement relating to the export and/or import of
     any goods or equipment;

          (U)    power of attorney or other similar agreement or grant of
     agency;

          (V)    agreement restricting the payment of dividends or other
     distributions upon, or the conversion or repurchase of, the Preferred
     Stock; and

          (W)    other agreement which is material to the business, results of
     operations, condition (financial or otherwise), prospects or operations of
     the Company or its Subsidiaries.

          (ii)   All of the contracts, agreements and instruments set forth or
required to be set forth on Schedule 3.01(q) are valid, binding and enforceable
against the Company or the applicable Subsidiary and, to the knowledge of the
Company, against the other parties thereto, in accordance with their respective
terms and shall be in full force and effect without penalty in accordance with
their terms upon consummation of the transactions contemplated by this
Agreement, the Ancillary Agreements, the High Yield Financing, the Senior Credit
Facility and the Reorganization, except as enforceability may be limited by
bankruptcy, insolvency, reorganization, moratorium or other laws affecting
creditors' rights generally and limitations on the availability of equitable
remedies. The Company and its Subsidiaries and the Predecessor Company have
performed all obligations required to be performed by them in all material
respects and they are not in default under, or in breach of, in any material
respect, nor in receipt of any claim of any material default or breach under,
any such contract, agreement or instrument.  To the knowledge of the Company, no
event has occurred which with the passage of time or the giving of notice or
both would result in a default, breach or event of noncompliance by the Company
or any Subsidiary under any such contract, agreement or instrument.  Neither the
Company nor any Subsidiary has knowledge of any breach or cancellation or
anticipated breach or cancellation by the other parties to any material
contract, agreement, instrument or commitment to which the Company or such
Subsidiary is a party.  Each of the tower sale and leaseback agreements of the
Company is identical in all material respects to the form of tower sale and
leaseback agreement previously provided to Blackstone.

          (iii)  Schedule 3.01(q) sets forth all agreements between the Company,
its Subsidiaries or any of its Affiliates, on the one hand, and Sprint and any
of its Affiliates, on the other hand, including the Sprint Management Agreement,
the Sprint Services Agreement, the Sprint Spectrum Trademark and Service Mark
License Agreement and the Sprint Trademark and Service Mark License Agreement
(collectively, the "Sprint Agreements").  The Sprint Agreements are valid,
                    -----------------
binding and enforceable against the Company or its Subsidiaries and Sprint PCS,
in accordance with their respective terms and shall be in full force and effect
without penalty in accordance with their terms upon consummation of the
transactions contemplated by this Agreement, the Ancillary Agreements, the High
Yield Financing, the Senior Credit Facility and the Reorganization, except as
enforceability may be limited by bankruptcy, insolvency, reorganization,
moratorium or other laws affecting creditors' rights generally and limitations
on the availability of equitable remedies. The Company and its Subsidiaries have
performed all obligations required to be performed by them

                                       20
<PAGE>

in any material respect and they are not in default under or in breach of, in
any material respect, nor in receipt of any claim of default or breach under,
any of the Sprint Agreements. To the knowledge of the Company, no event has
occurred which with the passage of time or the giving of notice or both would
result in a default, breach or event of noncompliance by the Company or any
Subsidiary under any of the Sprint Agreements. Neither the Company nor any
Subsidiary has knowledge of any breach or cancellation or anticipated breach or
cancellation by Sprint or any of its Affiliates of any of the Sprint Agreements.

          (iv)   Blackstone has been supplied with a true and correct copy of
each of the written instruments, plans, contracts and agreements, including the
Sprint Agreements and the Supply Agreement (other than the tower sale and
leaseback agreements of the Company or any Subsidiary), and an accurate
description of each of the oral arrangements, oral contracts and oral agreements
which are referred to on the Schedule 3.01(q), together with all amendments,
waivers or other changes thereto.

          (r)    Intellectual Property Rights.
                 ----------------------------

          (i)    Schedule 3.01(r)(i) contains a complete and accurate list of
all (A) patented or registered Intellectual Property Rights owned by the Company
or any of its Subsidiaries, (B) pending patent and trademark applications and
applications for other registrations of Intellectual Property Rights owned by
the Company or any of its Subsidiaries, (C) material unregistered Intellectual
Property Rights owned or used by the Company or any of its Subsidiaries and (D)
material Intellectual Property Rights used but not owned by the Company and its
Subsidiaries. Schedule 3.01(r)(i) also contains a complete and accurate list of
all material licenses and other rights granted by any third party to the Company
or its Subsidiaries with respect to any Intellectual Property Rights, in each
case identifying the subject Intellectual Property Rights.  The Company or one
of its Subsidiaries owns and possesses all right, title and interest to, or has
the right to use pursuant to a valid and enforceable license identified on
Schedule 3.01(r)(i), or has other sufficient and legally enforceable rights from
the licensor identified on Schedule 3.01(r)(i), to use all Intellectual Property
Rights necessary for the operation of its business as presently conducted and as
presently proposed to be conducted, free and clear of all Liens other than
Permitted Liens (the "Company Intellectual Property Rights").  The Company and
                      ------------------------------------
its Subsidiaries do not utilize any Intellectual Property Rights developed,
invented or made by its employees prior to their employment by the Company or
any of its Subsidiaries.  The loss or expiration of any Company Intellectual
Property Right or related group of Company Intellectual Property Rights has not
had and could not reasonably be expected to have a Material Adverse Effect, and
no loss or expiration of any Company Intellectual Property Right is pending or,
to the knowledge of the Company, threatened or reasonably foreseeable that could
reasonably be expected to have a Material Adverse Effect.  The Company and its
Subsidiaries have taken commercially reasonable action necessary to maintain and
protect the Company Intellectual Property Rights.

          (ii)   To the knowledge of the Company, the conduct of the businesses
of the Company and its Subsidiaries or the Predecessor Company has not infringed
or misappropriated, and the operation of the Company's and its Subsidiaries'
businesses as presently conducted and as presently proposed to be conducted does
not and will not infringe or misappropriate any Intellectual Property Rights of
other Persons. To the knowledge of the Company, the Company Intellectual
Property Rights have not been infringed or misappropriated by other Persons. The
transactions contemplated by this Agreement, any Ancillary Agreement, the
Financings or the Reorganization will not have a material adverse effect on the
right, title or interest of the Company and its

                                       21
<PAGE>

Subsidiaries in and to the Company Intellectual Property Rights and all of such
Company Intellectual Property Rights shall be owned or available for use by the
applicable entity on identical terms and conditions immediately after the
Closing.

          (s)  Insurance.  The Company and its Subsidiaries and the Predecessor
               ---------
Company have at all times maintained in full force and effect property damage,
liability and other insurance with financially sound and reputable insurers at
levels of coverage reasonable and customary in the Company's industry.

          (t)  Taxes.  Each of the Company and its Subsidiaries has timely filed
               -----
all Tax Returns which are required to be filed and all such Tax Returns are
true, correct and complete in all material respects.  Each of the Company and
each of its Subsidiaries has timely paid all Taxes (whether or not shown thereon
to be due) and all other Taxes and assessments known to the Company or any such
Subsidiary to be payable by it, except to the extent the same have become due
and payable and are not yet delinquent or are being contested in good faith and
have been accrued for in the Company's financial statements (other than accruals
for deferred Taxes representing the difference between book and Tax basis in
assets and liabilities).  To the extent that Tax liabilities and assessments
have accrued but have not yet become payable, they have been adequately
reflected as liabilities in the appropriate financial statements of the Company
or its Subsidiaries and adequate reserves have been established for the payment
thereof (other than accruals for deferred Taxes representing the difference
between book and Tax basis in assets and liabilities).  No Tax Returns of the
Company and its Subsidiaries have been examined and reported on by the
applicable taxing authority.   To the best of the Company's knowledge, there
exists no dispute with any taxing authority with respect to the Tax Returns of
the Company and its Subsidiaries which, if adversely determined, would have a
Material Adverse Effect.  There are no Liens with respect to Taxes upon any of
the assets or properties of the Company or any of its Subsidiaries, other than
with respect to Taxes not yet due and payable.  Except as set forth on Schedule
                                                                       --------
3.01(t), none of the Company or its Subsidiaries is a party to, bound by or has
-------
any obligation under, any Tax sharing agreement or similar contract or
arrangement or any payment computed by reference to the Taxes, taxable income or
taxable losses of any other person.  None of the Company or its Subsidiaries,
is, or has been, a member of an affiliated group filing a consolidated,
combined, unitary or similar Tax Return, or has any liability for Taxes of any
other Person under Treasury Regulation section 1.1502-6(a) (or any comparable
provision under state, local or foreign law), as a transferee or successor, by
contract or otherwise.  No claim has ever been made by an authority in a
jurisdiction where the Company or any of its Subsidiaries does not file Tax
Returns that the Company or any of its Subsidiaries are or may be subject to
taxation by that jurisdiction.  None of the Company or any of its Subsidiaries
is, and for the applicable period specified in section 897(c)(1)(A)(ii) of the
Code, has been a real property holding corporation within the meaning of section
897(c)(2) of the Code and regulations promulgated thereunder.  For purposes of
this Section 3.01(t), the Company and its Subsidiaries includes any
predecessors, including the Predecessor Company.  Except as set forth on
Schedule 3.01(t), neither the Company nor any of its Subsidiaries has any Tax
----------------
Liabilities as a result of the Reorganization.

          (u)  Environmental Matters.  Except as set forth in Schedule 3.01(u)
               ---------------------
and except as could not reasonably be expected to result, individually or in the
aggregate, in material liabilities under or relating to Environmental
Liabilities, in connection with the properties and other assets and the past and
present operations of the Company and its Subsidiaries (including, for purposes
of this clause (u), the Predecessor Company):

                                       22
<PAGE>

          (i)    The Company and its Subsidiaries hold, and are not in violation
     of any applicable Environmental Permits, and are otherwise in compliance
     with all applicable Environmental Laws and, to the knowledge of the
     Company, there is no condition that could materially interfere with
     compliance with Environmental Laws in the future;

          (ii)   None of the Company or any of its Subsidiaries has received any
     Environmental Claim, and none of the Company or any of its Subsidiaries has
     knowledge of any threatened Environmental Claim;

          (iii)  Hazardous Materials have not been generated, transported,
     treated, stored, disposed of or arranged to be disposed of, released or
     threatened to be released by the Company or any of its Subsidiaries or, to
     the knowledge of the Company, any other Person at, on, from or under any
     property or facility currently or formerly owned or operated by the Company
     or any of its Subsidiaries, in violation of, or in a manner or to a
     location that could reasonably be expected to give rise to liability under
     any Environmental Law;

          (iv)   There are no past or present actions, activities, events,
     conditions or circumstances, including the release, threatened release,
     emission, discharge, generation, treatment, storage or disposal of
     Hazardous Materials by the Company or any of its Subsidiaries or any other
     Person, that, to the knowledge of the Company could reasonably be expected
     to give rise to any liability or obligation of the Company or any of its
     Subsidiaries under any Environmental Laws;

          (v)    None of the Company or any of its Subsidiaries has assumed,
     contractually, any liabilities or obligations under any Environmental Laws,
     except to the extent such assumption is consistent with the ordinary
     business practices of the Company or its Subsidiaries;

          (vi)   For purposes of this Agreement, the following terms shall have
     the following meanings:

                 "Environmental Claim" means any written notice, claim, demand,
                  -------------------
     action, suit, complaint, proceeding or other communication which has been
     served upon or delivered to the Company or any of its Subsidiaries, or of
     which the Company or any of its Subsidiaries otherwise has knowledge, by
     any Person alleging liability or potential liability (including liability
     or potential liability for investigatory costs, cleanup costs, governmental
     response costs, natural resource damages, property damage, personal injury,
     fines or penalties) arising out of, relating to, based on or resulting from
     (A) the presence, discharge, emission, release or threatened release of any
     Hazardous Materials at any location, (B) circumstances forming the basis of
     any violation or alleged violation of any Environmental Law or
     Environmental Permit, or (C) otherwise relating to obligations or
     liabilities under any Environmental Law.

                 "Environmental Permits" means all permits, licenses,
                  ---------------------
     registrations and other governmental authorizations required under
     Environmental Laws for the Company or its Subsidiaries to conduct their
     operations.

                                       23
<PAGE>

               "Environmental Laws" means all applicable, federal, state and
                ------------------
     local statutes, rules, regulations, ordinances, orders, decrees and common
     law relating in any manner to contamination, pollution or protection of
     human health or the environment, including the Comprehensive Environmental
     Response, Compensation and Liability Act, the Solid Waste Disposal Act, the
     Clean Air Act, the Clean Water Act, the Toxic Substances Control Act, the
     Occupational Safety and Health Act, the Emergency Planning and Community-
     Right-to-Know Act, the Safe Drinking Water Act, all as amended, and similar
     state laws.

               "Hazardous Materials" means all hazardous, dangerous or toxic
                -------------------
     substances, wastes, materials or chemicals, petroleum (including crude oil
     or any fraction thereof) and petroleum products, asbestos and asbestos-
     containing materials, urea-formaldehyde insulation, pollutants,
     contaminants and all other materials, substances or forces, including radio
     frequency radiation, electromagnetic fields and transmission of microwave
     frequencies, regulated pursuant to any Environmental Law or that could
     result in liability under any Environmental Law.

          (v)  High Yield Financing and Senior Credit Facility. (i) The Company
               -----------------------------------------------
     and/or if applicable, its Subsidiaries have full power and authority to
     enter into each High Yield Financing Document and the Senior Credit
     Facility and to consummate the transactions contemplated thereby. The High
     Yield Financing, the Senior Credit Facility and the transactions
     contemplated thereby have been authorized by the Board of Directors of the
     Company and/or, if applicable, its Subsidiaries. No other proceedings on
     the part of the Company and/or, if applicable, its Subsidiaries are
     necessary to authorize the execution, delivery and performance of the High
     Yield Financing Documents, the Senior Credit Facility and the transactions
     contemplated thereby.  The High Yield Financing Documents and the Senior
     Credit Facility constitute valid, binding and enforceable obligations of
     the Company, and, if applicable, its Subsidiaries, and, to the knowledge of
     the Company, the other parties party thereto, except as such enforceability
     may be limited by bankruptcy, insolvency, reorganization, moratorium or
     other laws affecting creditors' rights generally and limitations on the
     availability of equitable remedies.  The execution, delivery and
     performance of each High Yield Financing Document and the Senior Credit
     Facility, the consummation by the Company and, if applicable, its
     Subsidiaries of the transactions contemplated thereby and the compliance by
     the Company and, if applicable,  its Subsidiaries with any of the
     provisions thereof will not conflict with, violate or result in a breach in
     any material respect of any provision of, require a consent under, or
     constitute a default (or an event which, with notice or lapse of time or
     both, would constitute a default) under, or result in the termination of or
     accelerate the performance required by, or result in a right of termination
     or acceleration under,  any provision of the certificate of incorporation,
     by-laws or other governing instrument of the Company or any of its
     Subsidiaries or  any agreement, instrument, permit, concession, grant,
     franchise, license, judgment, order, decree, ruling, injunction, statute,
     law, ordinance, rule or regulation binding on or otherwise applicable to
     the Company or any of its Subsidiaries or their respective properties or
     assets, except that certain obligations that may arise pursuant to this
     Agreement and the Ancillary Agreements would require the prior consent of
     parties to, or amendments to, the High Yield Financing Documents and the
     Senior Credit Facility.

                                       24
<PAGE>

          (ii)   The closing of the High Yield Financing has been consummated
     immediately prior to or concurrently with the Series A-1 Closing and the
     Company has received gross proceeds of not less than $150,000,000 from the
     High Yield Financing.

          (iii)  The closing of the Senior Credit Facility has been consummated
     and the lending commitment thereunder of $140,000,000 is in full force and
     effect and available for drawdown and release from escrow, subject only to
     the satisfaction of the conditions set forth in Section 6.2 of the Senior
     Credit Facility.

          (w)    Reorganization  (i)  The Reorganization has been completed
                 --------------
     immediately prior to the Series A-1 Closing in accordance with the terms
     and provisions of the agreements and documents governing such transaction
     as included as Schedule 3.01(w)(i) attached hereto, including the
     Contribution Agreement and the Merger Agreement.  As part of the
     Reorganization, all of the membership interests of the Predecessor Company
     were validly transferred to the Company free and clear of any Liens, and
     all of the Common Stock issued to the owners of the Predecessor Company in
     exchange for their membership interests of the Predecessor Company were
     duly authorized, validly issued and fully paid and nonassessable.

          (ii)   Prior to the Reorganization, the Company and its Subsidiaries
     owned no assets, had no Indebtedness or other liabilities and did not
     conduct any business, other than the filing and prosecution of a
     Registration Statement on Form S-1 under the Securities Act in connection
     with a proposed initial public offering.

          (iii)  Assuming the accuracy of the Purchasers' representations set
     forth in Section 3.02(c) hereof, all consents, approvals, orders or
     authorization of, or registrations, declarations or filings with, any
     Governmental Entity, including any approvals required under the HSR Act (as
     defined below), required in connection with the Reorganization have been
     obtained and are in full force and effect.

          (iv)   The merger of Wireless and the Predecessor Company has been
     completed and a certificate of merger has been filed with the Secretary of
     State of the State of Delaware.

          (x)    Offering Memorandum. The Offering Memorandum dated July 10,
                 -------------------
2000 of the Company with respect to the High Yield Financing does not contain
any untrue statement of a material fact or omit to state a material fact
necessary in order to make the statements made therein, in light of the
circumstances under which they were made, not misleading.

          (y)    Takeover Statutes. No "fair price", "moratorium", "control
                 -----------------
share acquisition" or other similar antitakeover statute or regulation enacted
under state or federal laws in the United States (with the exception of Section
203 of the Delaware General Corporation law (the "DGCL") applicable to the
                                                  ----
Company is applicable to the transactions contemplated by this Agreement and the
Ancillary Agreements. The action of the Board of Directors of the Company in
approving this Agreement and the Ancillary Agreements and the transactions
contemplated hereby and thereby is sufficient to render inapplicable to this
Agreement and the Ancillary Agreements and the transactions contemplated hereby
and thereby the restrictions on business combinations with interested
stockholders set forth in Section 203 of the DGCL.

                                       25
<PAGE>

          (z)  Consent and Agreement and Sprint Agreements. The Consent and
               -------------------------------------------
Agreement has been executed and consented by Wireless, the Company and iPCS
Equipment, Inc. true and correct copies of the Consent and Agreement have been
delivered to each of Blackstone and TCW.

          (aa) Subscribers.  The Company has not less than 14,000 Subscribers.
               -----------

          Section 3.02  Representations and Warranties of the Purchasers. Each
                        ------------------------------------------------
of the Purchasers, severally and not jointly, represents and warrants to, and
agrees with, the Company as follows:

          (a)  Organization.  Such Purchaser is duly organized and validly
               ------------
existing under the laws of its jurisdiction of organization and has the
requisite power and authority to enter into this Agreement and each of the
Ancillary Agreements to which it is a party and to carry out its obligations
hereunder and thereunder.

          (b)  Authorization; No Conflicts.  Such Purchaser has full power and
               ---------------------------
authority to enter into this Agreement and the Ancillary Agreements to which it
is a party and to consummate the transactions contemplated hereby and thereby.
The execution, delivery and performance of this Agreement and each of the
Ancillary Agreements to which such Purchaser is a party and the consummation of
the transactions contemplated hereby and thereby have been duly authorized by
such Purchaser.  No other proceedings on the part of such Purchaser are
necessary to authorize the execution, delivery and performance of this Agreement
and each Ancillary Agreements and the transactions contemplated hereby and
thereby.  This Agreement has been duly and validly executed and delivered by
such Purchaser.  This Agreement and each of the Ancillary Agreements constitutes
a valid and binding obligation of such Purchaser enforceable against such
Purchaser in accordance with its terms, except as limited by applicable
bankruptcy, insolvency, reorganization, moratorium or other laws affecting
creditors' rights generally, and limitations on the availability of equitable
remedies.  The execution, delivery and performance of this Agreement and the
Ancillary Agreements by such Purchaser, the consummation of the transactions by
such Purchaser contemplated hereby and thereby and the compliance by such
Purchaser with any of the provisions hereof and thereof will not conflict with,
violate or result in a breach in any material respect of any provision of,
require a consent under, or constitute a default (or an event which, with notice
or lapse of time or both, would constitute a default) under, or result in the
termination of or accelerate the performance required by, or result in a right
of termination or acceleration under, any provision of the governing instruments
of such Purchaser or any agreement, instrument, permit, concession, grant,
franchise, license, judgment, order, decree, ruling, injunction, statute, law,
ordinance, rule or regulation binding on or otherwise applicable to such
Purchaser or its properties or assets.

          (c)  Consents and Approvals.  Except pursuant to the HSR Act with
               ----------------------
respect to the Series A-2 Closing, no consent, approval, order or authorization
of, or registration, declaration or filing with, any Governmental Entity is
required on the part of such Purchaser in connection with the execution,
delivery and performance by such Purchaser of this Agreement and the Ancillary
Agreements to which it is a party and the consummation of the transactions by
such Purchaser hereunder and thereunder.

          (d)  Securities Act.  Such Purchaser is acquiring the Series A-1
               --------------
Preferred Stock and the Common Stock issuable upon conversion thereof solely for
the purpose of investment for its own account and not as nominee or agent, and
not with a view to, or for resale in connection with, any distribution thereof,
and such Purchaser has no present intention of selling, granting any

                                       26
<PAGE>

participation in, or otherwise distributing the same (subject to the right of
disposition being at all times in the control and discretion of such Purchaser,
subject to the provisions of the Stockholders Agreement).  The Purchaser does
not have any contract, undertaking, agreement or arrangement with any Person to
sell, transfer or grant any participation to such Person with respect to the
Series A-1 Preferred Stock or the Common Stock issuable upon conversion thereof.

          (e)  Experience in Financial Matters; Independent Investigation;
               -----------------------------------------------------------
Access.  Such Purchaser's knowledge and experience in financial and business
------
matters is such that it is capable of evaluating the merits and risks of its
investment, either direct or indirect, in the Preferred Stock as contemplated by
this Agreement and such Purchaser acknowledges that it has received all the
information it considers necessary or appropriate for deciding whether to
purchase the Preferred Stock and that it has had the opportunity to ask
questions and receive answers from the Company regarding the terms and
conditions of the offering of the Preferred Stock and the business, properties
and financial condition of the Company; provided that the Company agrees this
Section 3.02(e) shall have no effect on the interpretation of the
representations and warranties set forth in Section 3.01 and/or the rights of
such Purchaser arising from a breach thereof.  Each Purchaser represents and
warrants that it has not made its decision to invest in the Preferred Stock
based on any form of general solicitation or general advertisement.

          (f)  Financial Resources.  Such Purchaser has access to sufficient
               -------------------
financial resources to perform its obligations hereunder (including its
obligation to purchase the Series A-2 Preferred Stock) and can bear the economic
risks of its investment.

          (g)  Accredited Investor.   Each Purchaser included within the
               -------------------
definition of "Blackstone" herein is an "accredited investor" within the meaning
of Rule 501 promulgated under the Securities Act .  Each Purchaser included
within the definition of "TCW" herein is  a "qualified institutional buyer"
within the meaning of Rule 144A promulgated under the Securities Act.

                                  ARTICLE IV.

                     Additional Agreements of the Parties
                     ------------------------------------

          Section 4.01  Taking of Necessary Action.  Each of the parties hereto
                        --------------------------
agrees to use all reasonable efforts promptly to take or cause to be taken all
action and promptly to do or cause to be done all things necessary, proper or
advisable under applicable laws and regulations to consummate and make effective
the transactions contemplated by this Agreement.  Without limiting the
foregoing, the Company and the Purchasers shall, and the Company shall cause its
respective Subsidiaries to, each use all reasonable efforts to make all filings
and obtain all consents of Governmental Entities as promptly as practicable
which may be necessary or, in the opinion of the Purchasers  or the Company, as
the case may be, advisable for the consummation of the transactions contemplated
by this Agreement and the Ancillary Agreements, including any approvals that may
be required under the Hart Scott-Rodino Antitrust Improvements Act of 1976, as
amended, and the rules and regulations thereunder (the "HSR Act"), with respect
                                                        -------
to the purchase and sale of the Series A-2 Preferred Stock, it being understood
that the parties shall make any necessary filings under the HSR Act by October
15, 2000 if the obligations of the parties to purchase and sell the Series A-2
Preferred Stock are still in effect on such date.

          Section 4.02  Financial Statements and Other Reports.  The Company
                        --------------------------------------
covenants that it will deliver to each of Blackstone and TCW:

                                       27
<PAGE>

          (a)  as soon as available, but in any event within the later of (i) 5
     days after receiving all necessary information from Sprint and 30 days
     after the end of each monthly accounting period in each fiscal year (45
     days in the case of  the last month of each fiscal quarter), (A) unaudited
     consolidating and consolidated statements of income and cash flows of the
     Company and its Subsidiaries for such monthly period and for the period
     from the beginning of such fiscal year to the end of such monthly period,
     and unaudited consolidating and consolidated balance sheets of the Company
     and its Subsidiaries as of the end of such monthly period, setting forth in
     each case comparisons to the Company's annual budget and to the
     corresponding period in the preceding fiscal year, all such statements to
     be prepared in accordance with GAAP (subject to the absence of footnote
     disclosures and to normal year-end adjustments for recurring accruals), and
     (B) a status report prepared by the Company's chief financial officer,
     indicating whether the Company has met its budgeted financial goals
     (including those delivered pursuant to Section 4.02(d) hereof), discussing
     the reasons for any variation from such goals, and describing, in the case
     of a shortfall, what actions the Company and its Subsidiaries have taken
     and propose to take in order to meet budgeted financial targets in the
     future; provided, that in any event within 21 days after the end of a
     monthly accounting period (other than an accounting period that is the last
     month of a fiscal quarter), the Company shall deliver such of the above
     documents as are available at that date.

          (b)  accompanying the financial statements delivered under Section
     4.02(a) hereof with respect to each quarterly accounting period in each
     fiscal year, an Officer's Certificate stating that, to the knowledge of the
     person executing such Officer's Certificate, there is no Event of
     Noncompliance in existence, or, if any Event of Noncompliance exists,
     specifying the nature and period of existence thereof and what actions the
     Company and its Subsidiaries have taken and propose to take with respect
     thereto;

          (c)  within 90 days after the end of each fiscal year, consolidating
     and consolidated statements of income and cash flows of the Company and its
     Subsidiaries for such fiscal year, and consolidating and consolidated
     balance sheets of the Company and its Subsidiaries as of the end of such
     fiscal year, setting forth in each case comparisons to the Company's annual
     budget and to the preceding fiscal year, all prepared in accordance with
     GAAP and accompanied by (i) with respect to the consolidated portions of
     such statements, an opinion containing no exceptions or qualifications
     (except qualifications regarding specified contingent liabilities) of an
     independent accounting firm of recognized national standing, and (ii) a
     copy of such firm's annual management letter to the board of directors;

          (d)  at least 30 days but no more than 90 days prior to the beginning
     of each fiscal year, a draft annual budget prepared on a monthly basis for
     the Company and its Subsidiaries for such fiscal year (displaying
     anticipated statements of income and cash flows and balance sheets and
     budgeted capital expenditures), and promptly upon preparation thereof any
     other significant budgets prepared by the Company and any revisions of such
     annual or other budgets, in each case, prior to the adoption thereof by the
     board of directors of the Company so as to allow the Purchasers a
     reasonable opportunity to review any such budget and consult with the
     Company thereon;

          (e)  promptly (but in any event within ten Business Days) after the
     discovery or receipt of notice of any Event of Noncompliance, an Officer's
     Certificate specifying the

                                       28
<PAGE>

     nature and period of existence thereof and what actions the Company and its
     Subsidiaries have taken and propose to take with respect thereto; and

          (f)  from time to time such additional information regarding results
     of operations, financial condition, business or prospects of the Company
     and its Subsidiaries as the Purchasers may reasonably request.

          Section 4.03  Inspection of Property.  Subject to the last sentence
                        ----------------------
of Section 7.1 of the Stockholders Agreement, the Company will permit
representatives of the Purchasers upon reasonable notice to visit and inspect
any of the properties of the Company or any of its Subsidiaries, to examine the
corporate books, records, agreements and files of the Company and make copies or
extracts therefrom and to discuss the affairs, finances and accounts of the
Company and its Subsidiaries with the principal officers of the Company.

          Section 4.04  Notification of Certain Matters. (a) Until December 31,
                        -------------------------------
2000, the Company shall give prompt notice to the Purchasers of the occurrence
or non-occurrence of any event known to the Company the occurrence or non-
occurrence of which would reasonably be expected to cause any condition set
forth in Sections 5.01(a) or (b) not to be satisfied on December 31, 2000.

          (b)  Until December 31, 2000, Blackstone shall give prompt notice to
the Company of the occurrence or non-occurrence of any event known to it the
occurrence or non-occurrence of which would reasonably be expected to cause any
condition set forth in Sections 5.01(a) or (c) not to be satisfied on December
31, 2000.

          Section 4.05  Restrictive Covenants. From the date of the Series A-1
                        ---------------------
Closing until the earlier of (i) a Qualified Public Offering and (ii) the time
when no Preferred Stock remains outstanding, the Company shall not, without the
prior written consent of Blackstone:

          (a)  directly or indirectly declare or pay, or permit any Subsidiary
     to declare or pay, any dividends or make any distributions upon any of the
     capital stock or other equity securities of the Company or such Subsidiary,
     as the case may be, except for (i) dividends payable on the Preferred Stock
     pursuant to the terms of the Certificates of Designations and (ii)
     dividends or other distributions payable by any Subsidiary (A) to the
     Company or to any Wholly Owned Subsidiary or (B) on a pro rata basis with
     respect to all of such Subsidiary's capital stock or other equity
     interests;

          (b)  except for dividends pursuant to the terms of the Certificates of
     Designations, authorize, engage in or enter into any agreement providing
     for the issuance (contingent or otherwise) of any notes containing equity
     features or debt securities containing equity features (including any notes
     or debt securities convertible into or exchangeable for capital stock or
     other equity securities, issued in connection with the issuance of capital
     stock or other equity securities or containing profit participation
     features), in each case prior to December 31, 2000;

          (c)  make, or permit any Subsidiary to make, any loans or advances to,
     guarantees for the benefit of, or Investments in, any Person (other than a
     Wholly Owned Subsidiary established under the laws of a jurisdiction of the
     United States or any of its territorial possessions), except for the
     following:

                                       29
<PAGE>

          (i)    commission, payroll, travel and other reasonable advances to
                 employees in the ordinary course of business;

          (ii)   Investments in prepaid expenses, negotiable instruments held
                 for collection, lease, utility and workers' compensation,
                 performance and other similar deposits;

          (iii)  interest rate agreements and currency agreements entered into
                 for hedging purposes;

          (iv)   those made pursuant to the terms of the Stockholders Agreement;

          (v)    Investments in any Person or Persons the aggregate amount of
                 which, when aggregated with all Investments under this Section
                 4.05(c), do not exceed $7,000,000 or, if the Series A-2 Closing
                 has occurred, $3,000,000 or such higher amount not in excess of
                 $7,000,000 outstanding at the time immediately prior to the
                 Series A-2 Closing;

          (vi)   Investments in certificates of deposit, repurchase agreements,
                 money market or other cash management accounts, bankers
                 acceptances and short term Eurodollar time deposits with
                 financial institutions having a long term deposit rating of at
                 least A+ from Moody's Investors Service, Inc. or Standard &
                 Poor's Ratings Group;

          (vii)  Investments in commercial paper rated P1 or A1 by Moody's
                 Investors Service, Inc. or Standard & Poor's Ratings Group (or
                 the equivalent rating from another, comparably reputable rating
                 agency);

          (viii) Investments that are consistent with the Company's investment
                 policy (other than the section entitled "Policy Exceptions") as
                 in effect on the date of this Agreement, a copy of which has
                 been supplied to Blackstone;

          (ix)   Temporary Cash Investments; and

          (x)    Investments specifically identified on Schedule 4.05(c)(ix).

          (d)    enter into, or permit any Subsidiary to enter into, the
     ownership, active management or operation of any business that is not
     primarily related to, or in furtherance of, being a mobile wireless
     telecommunications service provider;

          (e)    other than pursuant to the High Yield Financing (including the
     accretion of Indebtedness incurred thereunder), and up to $140,000,000
     under the Senior Credit Facility, incur or permit any of its Subsidiaries
     to incur in the aggregate any Indebtedness in excess of $10,000,000 or, if
     the Series A-2 Closing has occurred, $5,000,000 or such higher amount not
     in excess of $10,000,000 outstanding at the time immediately prior to the
     Series A-2 Closing, other than Indebtedness described in clauses 4.09(b)
     (iv), (vi), (vii), (x), and (xi) of the Senior Notes Indenture as in effect
     on the date hereof;;

                                       30
<PAGE>

          (f)  other than pursuant to the Financings or (solely with respect to
     Section 5.2 of the Stockholders Agreement) ordinary course of business
     transactions, become subject to, or permit any of its Subsidiaries to
     become subject to, (including, by way of amendment to or modification of),
     any agreement or instrument which by its terms would (under any
     circumstances) restrict the Company's right to perform the provisions of
     this Agreement, each Ancillary Agreements, the Company's Certificate of
     Incorporation or the Company's bylaws (including provisions of this
     Agreement or any Ancillary Agreements relating to the declaration and
     payment of dividends on and the making of redemptions of the Preferred
     Stock);

          (g)  make any amendment to the Company's Certificate of Incorporation,
     the Certificates of Designations or the Company's bylaws, or file any
     resolution of the board of directors of the Company with the Secretary of
     State of the State of Delaware (other than to establish the terms of the
     Series A-2 Preferred Stock consistent herewith);

          (h)  enter into, amend, modify or supplement, or permit any Subsidiary
     to enter into, amend, modify or supplement, any agreement, transaction,
     commitment or arrangement or series of related agreements, transactions,
     commitments or arrangements with any officers, directors, or employees,
     stockholders (holding of record or beneficially more than 5% of any class
     of voting securities of the Company) or Affiliates of the Company or any
     Subsidiary or with any individual related by blood, marriage or adoption to
     any such individual or with any entity in which any such Person or
     individual owns a greater than 5% beneficial interest, except for (i)
     customary board of directors and employment arrangements, including
     pursuant to the Company's existing plans and arrangements, (ii) benefit
     programs and individual employee benefit compensation arrangements on terms
     approved by the board of directors of the Company, (iii) bona fide
     agreements, transactions, commitments or arrangements or series of related
     agreements, transactions, commitments or arrangements on an arm's length
     basis involving less than $250,000 individually and $500,000 in the
     aggregate on an annual basis, (iv) agreements, transactions, commitments or
     arrangements with Blackstone and/or any of its Affiliates and (v) as
     otherwise provided for by this Agreement or by any Ancillary Agreement;

          (i)  other than grants of options to purchase up to 6,500,000 shares
     of Common Stock in the aggregate to directors and officers of the Company
     or its Subsidiaries pursuant to the plans set forth on Schedule 4.05 (i)
     (the "Existing Plans") (1,558,750 of which shares have been the subject of
           --------------
     such grants on or prior to the date hereof), issue any equity securities
     (including any options, warrants or other rights to acquire equity
     securities) to employees of the Company or any Subsidiary;

          (j)  prior to December 31, 2000 (unless Blackstone notifies the
     Company after the Company's written request that it will not purchase the
     Series A-2 Preferred Stock or unless the Purchasers' obligation to purchase
     the Series A-2 Preferred Stock has terminated), issue or sell any shares of
     the capital stock or other equity securities (including any warrants,
     options, and other rights to acquire such capital stock or other equity
     securities) of (i) any Subsidiary to any Person other than the Company or a
     Wholly Owned Subsidiary, except pursuant to an Existing Plan or pursuant to
     any other transaction otherwise permitted by this Section 4.05 or (ii) the
     Company to any Person other than pursuant to (A) an Existing Plan or (B) a
     Public Offering or (C) issuances with respect to acquisitions by the
     Company or any

                                       31
<PAGE>

     of its Subsidiaries of assets or interests in a business or entity in arm's
     length bona fide transactions with an unaffiliated third party;

          (k)  terminate the employment of, hire, or enter into, amend or modify
     any employment agreement or arrangement with the Company's chief executive
     officer, chief financial officer or chief operating officer unless any such
     action is approved by the Company's board of directors;

          (l)  use the proceeds from the sale of the Preferred Stock hereunder
     other than for working capital and general corporate purposes;

          (m)  fail to notify and consult with Blackstone prior to selecting,
     retaining, or entering into, amending, terminating, or modifying any
     retention arrangement with, any underwriter, manager, or financial advisor
     to advise the Company and its Subsidiaries with respect to any proposed
     sale of the Company or other Business Combination Transaction (as defined
     in the Stockholders Agreement) or to underwrite, or advise the Company with
     respect to, any Public Offering or any other acquisitions or financing
     transactions;

          (n)  change any of the material accounting principles or practices
     utilized by the Company or its Subsidiaries or select, retain or replace
     any accounting firm engaged to audit the Company's or its Subsidiaries'
     financial statements; or

          (o)  agree or commit to any of the foregoing.

      Section 4.06  Affirmative Covenants.  Prior to the earlier of (i) a
                    ---------------------
Qualified Public Offering, and (ii) the time when no Preferred Stock remains
outstanding, the Company shall do the following, and shall cause each Subsidiary
to do the following, unless the Company has received the prior written consent
of Blackstone:

          (a)  at all times cause to be done all things necessary to maintain,
     preserve and renew its corporate existence and all material licenses,
     authorizations, orders, permits and other governmental approvals necessary
     to the conduct of its businesses as presently proposed to be conducted and
     as hereafter conducted; provided that this Section 4.06(a) shall not apply
     to mergers or consolidations solely between or among Wholly Owned
     Subsidiaries of the Company;

          (b)  maintain and keep its material properties in good repair, working
     order and condition, and from time to time make all necessary or desirable
     repairs, renewals and replacements, normal wear and tear excepted;

          (c)  pay and discharge when payable all material Taxes, assessments
     and governmental charges imposed upon its properties or upon the income or
     profits therefrom (in each case before the same becomes delinquent and
     before penalties accrue thereon), other than those being contested in good
     faith, and all material claims for labor, materials or supplies which if
     unpaid would by law become a lien upon any of its property unless and to
     the extent that the same are being contested in good faith and by
     appropriate proceedings and adequate reserves (as determined in accordance
     with GAAP) have been established on its books with respect thereto;

                                       32
<PAGE>

          (d)  comply in all material respects with all applicable laws, rules
     and regulations of all Governmental Entities;

          (e)  apply for and continue in force with good and responsible
     insurance companies adequate insurance covering risks of such types and in
     such amounts as are customary for corporations of similar size engaged in
     similar lines of business;

          (f)  maintain reasonable officers and directors liability insurance
     coverage;

          (g)  maintain proper books of record and account which present fairly
     in all material respects its financial condition and results of operations
     and make provisions on its financial statements for all such proper
     reserves as in each case are required in accordance with GAAP; and

          (h)  provide prompt written notice to the Purchasers if the Company or
     any Subsidiary receives a notice under any Sprint Agreement, which notice
     (i) relates to an "Event of Termination" (as defined in the Sprint
     Management Agreement), (ii) relates to the FCC or a Sprint License or is
     delivered in connection with Section 2.2 (Compliance with Regulatory Rules)
     or Section 16 (Regulatory Compliance) of the Sprint Management Agreement,
     (iii) relates to a dispute resolution proceeding under Section 16 (Dispute
     Resolution) of the Sprint Management Agreement, (iv) relates to the
     performance or status of completion of the Build-out Plan (as defined in
     the Sprint Management Agreement), or (v) otherwise relates to a matter
     under the Sprint Agreements which could give rise to a Material Adverse
     Effect.

                                  ARTICLE V.

                          Series A-2 Preferred Stock
                          --------------------------

          Section 5.01 Conditions with Respect to the Series A-2 Closing. (a)
                       -------------------------------------------------
The respective obligations of each party hereto to consummate the sale and
purchase of the Series A-2 Preferred Stock at the Series A-2 Closing are subject
to the satisfaction or waiver at or prior to the Series A-2 Closing of the
following conditions:

          (i)    No Injunction. There shall not be in effect any order, decree
                 -------------
                 or injunction of a court or agency of competent jurisdiction
                 which enjoins or prohibits consummation of the transactions
                 contemplated hereby or by the Ancillary Agreements.

          (ii)   Regulatory Approvals.  All permits, consents, authorizations,
                 --------------------
                 orders, approvals, filings and registrations required by any
                 Governmental Entity under any law, rule or regulation for or in
                 connection with the execution and delivery of this Agreement
                 and the Ancillary Agreements and the consummation of the
                 transactions contemplated hereby and thereby (including those
                 set forth on Schedule 3.01(d)), other than under the HSR Act,
                 shall have been obtained or made and all statutory waiting
                 periods thereunder in respect thereof shall have expired, in
                 each case without the

                                       33
<PAGE>

                 imposition of any terms or conditions which, either
                 individually or in the aggregate, are unduly burdensome.

          (iii)  Minimum Public Offering.  A Minimum Public Offering shall not
                 -----------------------
                 have occurred.

          (b)    The obligation of the Purchasers to consummate the purchase of
the Series A-2 Preferred Stock at the Series A-2 Closing is subject to the
satisfaction or waiver by Blackstone of the following further conditions:

          (i)    Representations and Warranties. (A) Each of the representations
                 ------------------------------
                 and warranties of the Company contained in this Agreement or
                 contained in the Ancillary Agreements that is qualified as to
                 "materiality" or "Material Adverse Effect" shall have been true
                 and correct on and as of the date of this Agreement or the date
                 of such Ancillary Agreements, as the case may be (except to the
                 extent that any such representation or warranty is made as of a
                 specified date, in which case such representation or warranty
                 shall be true and correct as of such specified date), and each
                 of the representations and warranties of the Company contained
                 in this Agreement and the Ancillary Agreements that is not so
                 qualified shall have been true and correct in all material
                 respects on and as of the date of this Agreement or the date of
                 such Ancillary Agreements, as the case may be (except to the
                 extent that any such representation or warranty is made as of a
                 specified date, in which case such representation or warranty
                 shall be true and correct in all material respects as of such
                 specified date); provided, that the parties agree that there
                                  --------
                 shall not have been a failure to occur of the condition set
                 forth in this clause (i)(A) unless and until there shall have
                 been a diminution in the value of the Purchasers' investment,
                 from and after the date hereof and measured at the purchase
                 price of $5.50 per share, of 15% or greater that results from,
                 arises out of or relates to the failure of any such
                 representations and warranties, individually or in the
                 aggregate, to have been true and correct, or true and correct
                 in all material respects, as the case may be.

                 (B)  Each of the representations and warranties of the Company
                 contained in Section 3.01(a), the last sentence of Section
                 3.01(b), Section 3.01(c), Section 3.01(d), the last four
                 sentences of Section 3.01(e), Section 3.01(f) with respect to
                 the most recent financial statements delivered to the
                 Purchasers prior to the Series A-2 Closing, Section 3.01(l)(i),
                 Section 3.01(l) (x) insofar as it relates to Section
                 3.01(l)(i), Section 3.01(n), the last four sentences of Section
                 3.01(q)(iii) and Section 3.01(w), that is qualified as to
                 "materiality" or "Material Adverse Effect" shall be true and
                 correct on and as of the date of the Series A-2 Closing with
                 the same effect as though made on and as of such date, and each
                 of such representations and warranties that is not so qualified
                 shall be true and correct in all material respects on and as of
                 the date of the Series A-2 Closing with the same effect as
                 though made on and as of such date.

                 (C)  Each of the representations and warranties of the Company
                 contained in Sections 3.01(h), (i),(j) (clauses (iii) through
                 (vii) only), (k), (l) (clause (i)

                                       34
<PAGE>

                 only), (m), (p), (s), (t), (u), (v), (y) and (z) shall be true
                 and correct as of the date of the Series A-2 Closing, except
                 with respect to any failure or failures, individually or in the
                 aggregate, of any of such representations and warranties to be
                 true and correct as of the date of the Series A-2 Closing which
                 could not reasonably be expected to have a Material Adverse
                 Effect.

          (ii)   Covenants.  The Company shall have, in all material respects,
                 ---------
                 performed all obligations and complied with all agreements,
                 undertakings, covenants and conditions required by this
                 Agreement or the Ancillary Agreements to be performed by it
                 (and not waived) at or prior to the Series A-2 Closing.

          (iii)  Opinion of Counsel.  The Purchasers shall have received at the
                 ------------------
                 Series A-2 Closing from (A) Mayer, Brown & Platt, counsel to
                 the Company, a written opinion dated as of the date of the
                 Series A-2 Closing which shall be to the effect set forth in
                 Exhibit B-1 hereto with appropriate updating modifications and
                 (B) Blooston, Mordkofsky, Jackson & Dickens, regulatory counsel
                 to the Company, a written opinion dated as of the date of the
                 Series A-2 Closing which shall be to the effect set forth in
                 Exhibit B-2 hereto with appropriate updating modifications (or,
                 in each case other counsel reasonably satisfactory to
                 Purchaser).

          (iv)   Certificates. The Company shall have delivered to the
                 ------------
                 Purchasers a certificate, dated the date of the Series A-2
                 Closing, signed by an officer of the Company, in form and
                 substance reasonably satisfactory to Blackstone, to the effect
                 that the conditions set forth in Sections 5.01(b)(i) and (ii)
                 have been satisfied.

          (v)    Fees and Expenses. Blackstone Management Partners III L.L.C. or
                 -----------------
                 its designees shall have received the costs and expenses
                 payable pursuant to Section 6.07 hereof (incurred prior to the
                 Series A-2 Closing) and the fee pursuant to the Transaction Fee
                 Agreement that is payable in connection with the Series A-2
                 Closing.

          (vi)   Certificate of Designations. The Certificate of Designations of
                 ---------------------------
                 the Series A-2 Preferred Stock shall have been filed and
                 certified by the Secretary of State of the State of Delaware.

          (vii)  Third Party Approvals.  The consents and approvals set forth on
                 ---------------------
                 Schedule 3.01(d) shall have been obtained in form and substance
                 reasonably satisfactory to Blackstone.

          (viii) HSR Approvals. Any waiting periods applicable to the Series A-2
                 -------------
                 Closing under the HSR Act (if applicable) shall have expired or
                 early termination shall have been granted prior to November 30,
                 2000; provided, that a party may not assert the failure of this
                       --------
                 condition to occur if such failure is the result of such
                 party's action, inaction or failure to prosecute such HSR Act
                 approval with diligence, including making complete HSR filings
                 by October 15, 2000, and the November 30 date shall be extended
                 to the extent of any party's delay.

                                       35
<PAGE>

          (c)  The obligation of the Company to consummate the sale of the
Series A-2 Preferred Stock to be sold to Blackstone in accordance with clause
(i) of Section 2.03 at the Series A-2 Closing is subject to the satisfaction or
waiver by the Company at or prior to the Series A-2 Closing (it being understood
that the sale of the Series A-2 Preferred Stock to be sold to TCW in accordance
with clause (ii) of Section 2.03 is not a condition to such obligation of the
Company), of the following further conditions:

          (i)    Representations and Warranties. Each of the representations and
                 ------------------------------
                 warranties of Blackstone contained in this Agreement and the
                 Ancillary Agreements that is qualified as to "materiality" or
                 "Material Adverse Effect" shall be true and correct on and as
                 of the date of this Agreement or the date of such Ancillary
                 Agreements, as the case may be, and (other than with respect to
                 Section 3.02(e)) on and as of the date of the Series A-2
                 Closing with the same effect as though made on and as of such
                 date (except to the extent that any such representation or
                 warranty is made as of a specified date, in which case such
                 representation or warranty shall be true and correct as of such
                 specified date), and each of the representations and warranties
                 of Blackstone contained in this Agreement and the Ancillary
                 Agreements that is not so qualified shall be true and correct
                 in all material respects on and as of the date of this
                 Agreement or the date of such Ancillary Agreements, as the case
                 may be, and (other than with respect to Section 3.02(e) and,
                 with respect to Section 3.02(d), only with respect to the
                 Series A-2 Preferred Stock) on and as of the date of the Series
                 A-2 Closing with the same effect as though made on and as of
                 such date (except to the extent that any such representation or
                 warranty is made as of a specified date, in which case such
                 representation or warranty shall be true and correct in all
                 material respects as of such specified date).

          (ii)   Covenants.  Blackstone shall, in all material respects, have
                 ---------
                 performed all obligations and complied with all agreements,
                 undertakings, covenants and conditions required by this
                 Agreement or the Ancillary Agreements to be performed by it at
                 or prior to the Series A-2 Closing.

          (iii)  Certificates.  Blackstone shall have delivered to the Company a
                 ------------
                 certificate, dated the date of the Series A-2 Closing, in form
                 and substance reasonably satisfactory to the Company to the
                 effect that the conditions set forth in Section 5.01(c)(i) and
                 (ii) have been satisfied.

          (iv)   HSR Approvals. Any waiting periods applicable to the sale of
                 -------------
                 the Series A-2 Preferred Stock to be sold to Blackstone in
                 accordance with clause (i) of Section 2.03 at the Series A-2
                 Closing under the HSR Act (if applicable) shall have expired or
                 early termination shall have been granted prior to November 30,
                 2000; provided, that the Company may not assert the failure of
                       --------
                 this condition to occur if such failure is the result of the
                 Company's action, inaction or failure to prosecute such HSR Act
                 approval with diligence, including making complete HSR Act
                 filings by October 15, 2000, and the November 30 date shall be
                 extended to the extent of the Company's delay.

                                       36
<PAGE>

          (d)  The obligation of the Company to consummate the sale of the
Series A-2 Preferred Stock to be sold to TCW in accordance with clause (ii) of
Section 2.03 at the Series A-2 Closing is subject to the satisfaction or waiver
by the Company at or prior to the Series A-2 Closing, of the following further
conditions:

          (i)    Representations and Warranties. Each of the representations and
                 ------------------------------
                 warranties of TCW contained in this Agreement and the Ancillary
                 Agreements that is qualified as to "materiality" or "Material
                 Adverse Effect" shall be true and correct on and as of the date
                 of this Agreement or the date of such Ancillary Agreements, as
                 the case may be, and (other than with respect to Section
                 3.02(e)) on and as of the date of the Series A-2 Closing with
                 the same effect as though made on and as of such date (except
                 to the extent that any such representation or warranty is made
                 as of a specified date, in which case such representation or
                 warranty shall be true and correct as of such specified date),
                 and each of the representations and warranties of TCW contained
                 in this Agreement and the Ancillary Agreements that is not so
                 qualified shall be true and correct in all material respects on
                 and as of the date of this Agreement or the date of such
                 Ancillary Agreements, as the case may be, and (other than with
                 respect to Section 3.02(e) and, with respect to Section
                 3.02(d), only with respect to the Series A-2 Preferred Stock)
                 on and as of the date of the Series A-2 Closing with the same
                 effect as though made on and as of such date (except to the
                 extent that any such representation or warranty is made as of a
                 specified date, in which case such representation or warranty
                 shall be true and correct in all material respects as of such
                 specified date).

          (ii)   Covenants.  TCW shall, in all material respects, have performed
                 ---------
                 all obligations and complied with all agreements, undertakings,
                 covenants and conditions required by this Agreement or the
                 Ancillary Agreements to be performed by it at or prior to the
                 Series A-2 Closing.

          (iii)  Certificates.  TCW shall have delivered to the Company a
                 ------------
                 certificate, dated the date of the Series A-2 Closing, in form
                 and substance reasonably satisfactory to the Company to the
                 effect that the conditions set forth in Section 5.01(d)(i) and
                 (ii) have been satisfied.

          (iv)   HSR Approvals. Any waiting periods applicable to the sale of
                 -------------
                 the Series A-2 Preferred Stock to be sold to TCW in accordance
                 with clause (ii) of Section 2.03 at the Series A-2 Closing
                 under the HSR Act (if applicable) shall have expired or early
                 termination shall have been granted prior to November 30, 2000;
                 provided, that the Company may not assert the failure of this
                 --------
                 condition to occur if such failure is the result of the
                 Company's action, inaction or failure to prosecute such HSR Act
                 approval with diligence, including making complete HSR Act
                 filings by October 15, 2000, and the November 30 date shall be
                 extended to the extent of the Company's delay.

                                       37
<PAGE>

                                  ARTICLE VI.

                                 Miscellaneous
                                 -------------

          Section 6.01   Survival of Representations and Warranties.  The
                         ------------------------------------------
representations and warranties contained in this Agreement shall survive until
January 12, 2002 (provided that if the Series A-2 Closing occurs such
representations and warranties shall survive until July 12, 2002), with the
exception of the representations and warranties contained in Sections 3.01(a),
(b), (c), (d), (e), (n), and (w), which shall survive indefinitely, and the
representations and warranties contained in Sections 3.01(j) (with respect to
ERISA matters) and (t) which shall survive until 60 days after the expiration of
the applicable statute of limitations with respect to the relevant Tax or
liability.

          Section 6.02   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)
Business Day after deposit with a nationally recognized overnight courier,
specifying next day delivery, with written verification of receipt.  All
communications shall be sent to the addresses set forth below:

               If to Blackstone, to:

               c/o The Blackstone Group
               345 Park Avenue, 31/st/ Floor
               New York, NY 10154
               Phone: (212) 583-5541
               Fax:   (212) 583-5722
               Attention:  Michael S. Chae

               With a copy to:

               Simpson Thacher & Bartlett
               425 Lexington Avenue
               New York, New York 10017
               Phone: (212) 455-7063
               Fax:   (212) 455-2502
               Attention:  Wilson S. Neely

                                       38
<PAGE>

               if to TCW

               TCW/Crescent Mezzanine, LLC
               11100 Santa Monica Boulevard, Suite 2000
               Los Angeles, CA 90025
               Attention: John C. Rocchio
               Facsimile: (310) 235-5967

               with a copy to:

               O'Melveny & Myers LLP
               400 South Hope Street
               Los Angeles, CA 90072-2899
               Attention: Kathryn Sanders
               Facsimile: (213) 430-6407

               If to the Company, to:

               iPCS, Inc.
               121 West First Street
               Suite 200
               Geneseo, Illinois 61254
               Phone: (309) 945-1650
               Fax:  (309) 945-1651
               Attention:  Timothy M. Yager

               With a copy to:

               Mayer, Brown & Platt
               190 South LaSalle Street
               Chicago, Illinois 60603
               Phone: (312) 782-0600
               Fax:  (312) 701-7711
               Attention:  Paul W. Theiss

or to such other address or addresses as shall be designated in writing.

          Section 6.03   Entire Agreement; Amendment.  This Agreement and the
                         ---------------------------
Ancillary Agreements set forth the entire agreement between the parties hereto
with respect to the transactions contemplated by this Agreement.  Any provision
of this Agreement may be amended or modified in whole or in part at any time by
an agreement in writing among the parties hereto executed in the same manner as
this Agreement.  No failure on the part of any party to exercise, and no delay
in exercising, any right shall operate as a waiver thereof nor shall any single
or partial exercise by any party of any right preclude any other or future
exercise thereof or the exercise of any other right.  No investigation by the
Purchasers of the Company or the Predecessor Company prior to or after the date
hereof shall stop or prevent the Purchasers from exercising any right hereunder
or be deemed to be a waiver of any such right.

                                       39
<PAGE>

          Section 6.04    Counterparts; Facsimile.  This Agreement may be
                          -----------------------
executed, by facsimile or otherwise, in one or more counterparts, each of which
shall be deemed to constitute an original, but all of which together shall
constitute one and the same documents.

          Section 6.05    Governing Law.  This Agreement shall be governed by,
                          -------------
and interpreted in accordance with, the laws of the State of New York applicable
to contracts made and to be performed in that State.

          Section 6.06    Public Announcements. Except to the extent required by
                          --------------------
law or the regulations of any national securities exchange or the Nasdaq
National Market, no party hereto will issue or make any reports, statements or
releases to the public with respect to this Agreement or the transactions
contemplated hereby without consulting with, and without the prior written
consent of, the other parties (such consent not to be unreasonably withheld or
delayed).

          Section 6.07    Fees and Expenses.  The Company and its Subsidiaries
                          -----------------
shall bear their own costs and expenses incurred in connection with this
Agreement and the Ancillary Agreements and the transactions contemplated hereby
and thereby, including the fees and expenses of the Company's financial
advisors, accountants and counsel.  The Company agrees to reimburse the
Purchasers for all reasonable costs and out-of-pocket expenses incurred by the
Purchasers or their Affiliates arising in connection with the Purchasers' due
diligence investigation of the Company, the preparation and negotiation of this
Agreement and the Ancillary Agreements and the consummation of the transactions
contemplated hereby and thereby, including all stamp and other taxes payable
with respect to the issuance of the Preferred Stock, filing fees, travel
expenses and the reasonable fees and expenses of the Purchasers' counsel,
accountants and consultants.

          Section 6.08   Indemnification.  (a)(i)  In consideration of the
                         ---------------
Purchasers' execution and delivery of this Agreement and purchase of the
Preferred Stock hereunder, and in addition to all of the Company's other
obligations under this Agreement, the Company agrees to defend, protect,
indemnify, and hold harmless on an as-and-when-incurred basis (A) Blackstone and
Blackstone's Affiliates (including The Blackstone Group and its Affiliates)
officers, directors, members, shareholders, partners, employees, agents,
successors, assigns and representatives (collectively, the "Blackstone
                                                            ----------
Indemnitees") and (B) TCW and TCW's Affiliates, officers, directors, members,
-----------
shareholders, partners, employees, agents, successors, assigns and
representatives (collectively, the "TCW Indemnitees" and, together with the
                                    ---------------
Blackstone Indemnitees, the "Purchaser Indemnitees") from and against any and
                             ---------------------
all actions, causes of action, suits, claims, losses (including any diminution
in the value of the Preferred Stock or the Common Stock into which the Preferred
Stock is convertible or has been converted), costs, penalties, fees,
liabilities, interest and damages, and expenses in connection therewith
(irrespective of whether any such Purchaser Indemnitee is a party to the action
for which indemnification hereunder is sought), and including reasonable
attorneys' fees and disbursements (collectively, the "Indemnified Liabilities"),
                                                      -----------------------
which any Purchaser Indemnitee may suffer, sustain, or become subject to, as a
result of, arising out of, or relating to (I) any breach (or third-party
allegation of a breach) of any covenant, agreement, representation, or warranty
of the Company under this Agreement or any Ancillary Agreements, or (II) the
execution, delivery, performance or enforcement of this Agreement and any
Ancillary Agreements executed by any Purchaser Indemnitee (other than with
respect to any diminution in the value of the Preferred Stock or Common Stock
into which the Preferred Stock is convertible or has been converted or the
performance of such Purchaser Indemnified Party's obligations hereunder),
except, in the case of this clause (II), for such Indemnified Liabilities
arising solely on account of the applicable Purchaser

                                       40
<PAGE>

Indemnitee's gross negligence or willful misconduct as finally determined by a
court of competent jurisdiction.

          (ii)   In consideration of the Company's execution and delivery of
     this Agreement and the sale and issuance of the Preferred Stock hereunder
     and in addition to all of the Purchasers' other obligations under this
     Agreement, each of Blackstone and TCW, severally and not jointly, agree to
     defend, protect, indemnify, and hold harmless on an as-and-when-incurred
     basis the Company, the Company's Subsidiaries, and the Company's officers,
     directors, shareholders, employees, agents, successors, assigns and
     representatives (collectively, the "Company Indemnitees") from and against
                                         -------------------
     any and all Indemnified Liabilities which any Company Indemnitee may
     suffer, sustain, or become subject to, as a result of, arising out of, or
     relating to, any breach (or third-party allegation of a breach) of any
     covenant, agreement, representation, or warranty of Blackstone or TCW,
     respectively, under this Agreement or any Ancillary Agreements.

          (iii)  The Indemnifying Party (as defined below) shall promptly
     reimburse the   Indemnified Party (as defined below) for any and all
     Indemnified Liabilities incurred by the Indemnified Party in seeking to
     collect any amounts payable under this Section 6.08 or to enforce the
     provisions of this Section 6.08.

          (iv)   Notwithstanding any other provision of this Agreement to the
     contrary, any amounts required to be paid as a result of any event
     specified in Article 6 of the Registration Rights Agreement shall be
     payable in accordance with such Article 6 and not in accordance with this
     Section 6.08.

          (b)    Limitations on Indemnification.  (i)  The Company shall not be
                 ------------------------------
     liable under this Section 6.08 to any Purchaser Indemnitee in respect of
     any indemnification for breaches of any representations and warranties set
     forth in Section 3.01 or elsewhere in this Agreement or in any Ancillary
     Agreement (other than the representations and warranties set forth in
     Sections 3.01(a), (b), (c), (d), (e), (j) (with respect to ERISA matters),
     (n), (t) and (w)) except to the extent that the aggregate amount of such
     Indemnified Liabilities of all Purchaser Indemnitees to be indemnified
     under this Section 6.08 with respect to breaches of such representations
     and warranties exceeds, in the aggregate, $500,000 or, if the Series A-2
     Closing has occurred, $1,000,000  (the "Basket Amount"), in which event the
                                             -------------
     Company shall be liable for the full amount of such Indemnified
     Liabilities, including the Basket Amount. The Purchasers shall not be
     liable under this Section 6.08 to any Company Indemnitee in respect of any
     indemnification for breaches of representations and warranties set forth in
     Section 3.02 or elsewhere in this Agreement or in any Ancillary Agreement,
     (other than representations and warranties set forth in Sections 3.02(a),
     (b), (c), (d) and (g)) except to the extent that the aggregate amount of
     such Indemnified Liabilities of all Company Indemnitees to be indemnified
     under this Section 6.08 with respect to breaches of such representations
     and warranties exceeds the Basket Amount, in which event Blackstone and/or
     TCW, as applicable, shall be liable for the full amount of such Indemnified
     Liabilities, including the Basket Amount.

          (ii)   Notwithstanding any other provision of this Agreement to the
     contrary,   the maximum aggregate liability of the Company pursuant to this
     Agreement for breaches of any representations and warranties set forth in
     Section 3.01 or elsewhere in this Agreement to indemnify (A) any Blackstone
     Indemnitee shall not exceed $40,000,000, or,

                                       41
<PAGE>

     if the Series A-2 Closing has occurred, $96,000,000 or (B) any TCW
     Indemnitee shall not exceed $10,000,000 or, if the Series A-2 Closing has
     occurred, $24,000,000.

          (iii)  The amount of any Indemnified Liabilities for which
     indemnification is   provided under this Section 6.08 shall be net of any
     amounts actually recovered by the Indemnified Party (or the Indemnifying
     Party to the extent such recovery mitigates any applicable diminution in
     value of the Preferred Stock or Common Stock into which the Preferred Stock
     is convertible or has been converted) from third parties (including amounts
     actually recovered under insurance policies) with respect to such
     Indemnified Liabilities. Any Indemnifying Party hereunder shall be
     subrogated to the rights of the Indemnified Party upon and to the extent of
     the payment in full of the amount of the Indemnified Liabilities. An
     insurer who would otherwise be obligated to pay any claim shall not be
     relieved of the responsibility with respect thereto or, solely by virtue of
     the indemnification provisions hereof, have any subrogation rights with
     respect thereto.  If any Indemnified Party recovers an amount from a third
     party in respect of an Indemnified Liability for which indemnification is
     provided in this Section 6.08 after the full amount of such Indemnified
     Liability has been paid by an Indemnifying Party or after an Indemnifying
     Party has made a partial payment of such Indemnified Liability and the
     amount received from the third party exceeds the remaining unpaid balance
     of such Indemnified Liability, the Indemnified Party shall promptly remit
     to the Indemnifying Party the excess (if any) of (A) the sum of the amount
     theretofore paid by the Indemnifying Party in respect of such Indemnified
     Liability plus the amount received from the third party in respect thereof
     over (B) the full amount of such Indemnified Liability.

          (iv)   The indemnification obligations of the parties hereto for any
     breach of a representation and warranty in this Agreement shall survive for
     only the period applicable to such representations and warranties as set
     forth in Section 6.01 of this Agreement, and thereafter (except as provided
     for in Section 6.01) all such representations and warranties under this
     Agreement shall be extinguished; provided, however, that such
                                      --------  -------
     indemnification obligation shall not be extinguished in the event of
     Indemnified Liabilities incurred as a result of any Third Party Claim that
     was instituted or begun prior to the expiration of the survival period set
     forth in Section 6.01 if notified in writing to the applicable Indemnifying
     Party by the applicable Indemnifying Party within 60 days of such
     Indemnified Party receiving notice thereof or with respect to any other
     Indemnified Liabilities if notified in writing to the applicable
     Indemnified Party by the applicable Indemnified Party prior to the
     expiration of the applicable survival period set forth in Section 6.01.
     Subject to the proviso at the end of the immediately preceding sentence, no
     claim for the recovery of any Indemnified Liabilities may be asserted by an
     Indemnified Party after such period.

          (v)    Notwithstanding any other provision of this Agreement to the
     contrary, the maximum aggregate liability of Blackstone pursuant to this
     Agreement for breaches by Blackstone of any representations and warranties
     set forth in Section 3.02 or elsewhere in this Agreement to indemnify any
     Company Indemnitee shall not exceed $40,000,000, or, if the Series A-2
     Closing has occurred, $96,000,000.

          (vi)   Notwithstanding any other provision of this Agreement to the
     contrary, the maximum aggregate liability of TCW pursuant to this Agreement
     for breaches by TCW of any representations and warranties set forth in
     Section 3.02 or elsewhere in this Agreement

                                       42
<PAGE>

     to indemnify any Company Indemnitee shall not exceed $10,000,000 or, if the
     Series A-2 Closing has occurred, $24,000,000.

          (vii)  Excluding an action or proceeding for the remedy of specific
     performance, the indemnification provided in this Section 6.08, together
     with the remedies set forth in the Ancillary Agreements, shall be the sole
     and exclusive remedy available to the Purchaser Indemnitees and the Company
     Indemnitees for matters for which indemnification is provided under this
     Section 6.08.

          (c)  Conditions of Indemnification.  (i) Third Party Claims.  The
               -----------------------------       ------------------
obligations and liabilities of the Purchasers and of the Company under this
Section 6.08 with respect to any Third Party Claim (as defined below) shall be
subject to the following terms and conditions:

          (A)    The party seeking indemnification (the "Indemnified Party")
                                                         -----------------
     must give the other party (the "Indemnifying Party") notice of any
                                     ------------------
     Indemnified Liabilities promptly after the Indemnified Party receives
     notice thereof; provided, that the failure to give such notice shall not
     affect the rights of the Indemnified Party hereunder, except to the extent
     that the Indemnifying Party shall have suffered actual damage by reason of
     such failure.

          (B)    The Indemnifying Party shall have the right to undertake, by
     counsel or other representatives of its own choosing (reasonably acceptable
     to the Indemnified Party), the defense of such Indemnified Liabilities at
     the Indemnifying Party's risk and expense (without reservation of rights
     and without any limitations contained therein), except as provided in this
     Agreement. In the event that either (I) with respect to any third party
     claim which could reasonably be expected to result in Indemnified
     Liabilities (a "Third Party Claim"), such Indemnified Liabilities are
                     -----------------
     reasonably expected to exceed the Indemnifying Party's obligations
     hereunder therefor or (II) within a reasonable time after notice from the
     Indemnified Party of any such Indemnified Liabilities, the Indemnifying
     Party shall fail to defend such claim, the Indemnified Party (upon further
     written notice to the Indemnifying Party) shall have the right to undertake
     the defense, compromise or settlement of such Indemnified Liabilities, by
     counsel or other representatives of its own choosing, on behalf of and for
     the account and risk of the Indemnifying Party if such matter is subject to
     indemnification hereunder. In the event the Indemnified Party assumes the
     defense of a Third Party Claim pursuant to this subsection (B), the
     Indemnifying Party shall pay to the Indemnified Party, in addition to the
     other sums required to be paid hereunder, the reasonable costs and expenses
     incurred by the Indemnified Party in connection with such defense,
     compromise or settlement as and when such costs and expenses are so
     incurred.

          (C)    Anything in this Section 6.08 to the contrary notwithstanding,
     in connection with any Third Party Claim, (I) if any third party claimant
     alleges the right to or seeks any remedy other than money damages or other
     money payments, the Indemnified Party shall have the right, at its own cost
     and expense, to participate in and direct the defense, compromise or
     settlement of such proceeding, (II) the Indemnifying Party shall not,
     without the Indemnified Party's written consent, settle or compromise any
     Indemnified Liabilities or consent to entry of any judgment which does not
     include as an unconditional term thereof the receipt by the Indemnified
     Party from the claimant or the plaintiff of a release from all liability in
     respect of such Indemnified Liabilities in form and substance reasonably
     satisfactory to the Indemnified Party, (III) in the event that the
     Indemnifying Party undertakes the defense of any Indemnified Liabilities,
     the Indemnified Party, by counsel or

                                       43
<PAGE>

     other representative of its own choosing and at its sole cost and expense,
     shall have the right to consult with the Indemnifying Party and its counsel
     or other representatives concerning such Indemnified Liabilities and the
     Indemnifying Party and the Indemnified Party and their respective counsel
     or other representatives shall cooperate with respect to such Indemnified
     Liabilities, (IV) in the event that the Indemnifying Party undertakes the
     defense of any Indemnified Liabilities, the Indemnifying Party shall have
     an obligation to keep the Indemnified Party informed of the status of the
     defense of such Indemnified Liabilities and furnish the Indemnified Party
     with all documents, instruments and information that the Indemnified Party
     shall reasonably request in connection therewith, and (V) in the event that
     both the Indemnified Party and the Indemnifying Party are parties (directly
     or through interpleader) to any Third Party Claim giving rise to
     indemnification hereunder, and the Indemnified Party is advised by counsel
     that there is or may be a conflict of interest in the representation of
     both the Indemnified Party and the Indemnifying Party by one firm of
     counsel, the Indemnified Party shall be entitled to assume, at the sole
     cost and expense of the Indemnifying Party, the defense, compromise and
     settlement (subject to clause (II) above) of such Indemnified Liabilities
     with counsel (in addition to local counsel) reasonably satisfactory to the
     Indemnifying Party.

          (ii)  Direct Claims.  The term "Indemnified Liabilities" as used in
                -------------
     this Section 6.08 is not limited to matters asserted by third parties
     against any Person entitled to be indemnified under this Section 6.08, but
     includes Indemnified Liabilities incurred or sustained by any such Person
     in the absence of Third Party Claims, and, if applicable, shall take into
     account the Purchaser Indemnities' ownership or investment in the Company.
     In the event that an Indemnified Party has a good faith basis for a claim
     for indemnification which is not a Third Party Claim (a "Direct Claim"),
                                                              ------------
     the Indemnified Party shall notify the Indemnifying Party in writing of
     such Direct Claim with reasonable promptness (a "Direct Claim Notice");
                                                      -------------------
     provided, that the failure to give such notice shall not affect the rights
     of the Indemnified Party hereunder, except to the extent that the
     Indemnifying Party shall have suffered actual damage by reason of such
     failure.  If the Indemnifying Party notifies the Indemnified Party that it
     disputes an Indemnified Party's right of indemnification with respect to a
     particular Direct Claim, the parties shall use their reasonable efforts
     promptly to negotiate a resolution of such dispute.  Except to the extent
     of the limitations on indemnification set forth in this Section 6.08,
     nothing in this subsection 6.08(c)(ii) shall be deemed to prevent any
     Indemnified Party from initiating litigation under this Agreement with
     respect to any Direct Claim disputed by the Indemnifying Party for the
     purpose of establishing the Indemnified Party's right to indemnification
     hereunder.

          Section 6.09    Successors and Assigns. Subject to applicable law, any
                          ----------------------
of the Purchasers may assign its rights under this Agreement in whole or in part
to any of its Affiliates or to any transferee of the Preferred Stock or Common
Stock issuable upon conversion of the Preferred Stock, but no such assignment
shall relieve the Purchasers of their obligations hereunder (including with
respect to the purchase of the Series A-2 Preferred Stock). The provisions of
this Agreement shall be binding upon and shall inure to the benefit of the
parties hereto and their respective successors and assigns. The Company may not
assign any of its rights or delegate any of its duties under this Agreement
without the prior written consent of Blackstone. Any purported assignment in
violation of this Section shall be void.

          Section 6.10    Jurisdiction.  The courts of the State of New York in
                          ------------
New York County and the United States District Court for the Southern District
of New York shall have

                                       44
<PAGE>

jurisdiction over the parties with respect to any dispute or controversy between
them arising under or in connection with this Agreement or any Ancillary
Agreements and, by execution and delivery of this Agreement, (i) each of the
parties to this Agreement submits to the exclusive jurisdiction of those courts,
including the in personam and subject matter jurisdiction of those courts,
              -- --------
waives any objections to such jurisdiction on the grounds of venue or forum non
                                                                      ----- ---
conveniens, the absence of in personam or subject matter jurisdiction and any
----------                 -- --------
similar grounds, (ii) consents to service of process by mail (in accordance with
Section 6.02) or any other manner permitted by law, and (iii) irrevocably agrees
to be bound by any judgment rendered thereby in connection with this Agreement
or any Ancillary Agreements.

          Section 6.11    Specific Performance.  The Company and the Purchasers
                          --------------------
acknowledge that the rights granted to the Company and the Purchasers in this
Agreement are of a special, unique and extraordinary character, and that any
breach of this Agreement by the Company or any Purchaser could not be
compensated for by damages.  Accordingly, if the Company or any Purchaser
breaches its obligations under this Agreement, the Company or Purchaser, as the
case may be, shall be entitled, in addition to any other remedies that it may
have, to enforcement of this Agreement by a decree of specific performance
requiring the Company or such Purchaser in breach to fulfill its obligations
under this Agreement.

          Section 6.12    Captions. The captions contained in this Agreement are
                          --------
for reference purposes only and are not part of this Agreement.

          Section 6.13    Severability.  Should any part of this Agreement for
                          ------------
any reason be declared invalid, such decision shall not affect the validity of
any remaining portion, which remaining portion shall remain in full force and
effect as if this Agreement had been executed with the invalid portion thereof
eliminated, and it is hereby declared the intention of the parties hereto that
they would have executed the remaining portion of this Agreement without
including therein any such part or parts which may, for any reason, be hereafter
declared invalid.

          Section 6.14    MUTUAL WAIVER OF JURY TRIAL.  THE PARTIES HERETO WAIVE
                          ---------------------------
ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, SUIT OR PROCEEDING BROUGHT TO ENFORCE
OR DEFEND ANY RIGHTS OR REMEDIES UNDER THIS AGREEMENT OR ANY ANCILLARY
AGREEMENTS.

          Section 6.15    Knowledge of Company.  Where any representation or
                          --------------------
warranty contained in this Agreement is expressly qualified by reference to the
knowledge of the Company, the Company confirms that it has made diligent inquiry
as to the matters that are subject of such representations and warranties.  The
Company shall be deemed to have knowledge of a particular fact or other matter
if any individual who is serving as a director or officer of the Company or any
of its Subsidiaries has, or at any time had, knowledge of such fact or other
matter.

          Section 6.16      No Recourse.  Notwithstanding any other provision of
                            -----------
this Agreement or any Ancillary Agreement or any rights of the Company at law or
in equity, in the event of any default by any of the Purchasers under this
Agreement or any Ancillary Agreement or in the event of any claim by any Company
Indemnitee for indemnification by any Indemnifying Party, the Company's remedies
and any Company Indemnitee's remedies pursuant to Section 6.08 shall be
restricted to enforcement of their respective rights against the property and
assets of the applicable Purchaser (including the Preferred Stock and the Common
Stock into which the Preferred Stock is convertible or has been converted) and
no resort shall be had to (i) any of the members or partners

                                       45
<PAGE>

of the Purchaser personally, or (ii) any property or assets of the members or
partners of the Purchasers (other than the property and assets of the applicable
Purchaser).

                                       46
<PAGE>

          IN WITNESS WHEREOF, this Investment Agreement has been executed by the
parties hereto or by their respective duly authorized officers, all as of the
date first above written.

                                   iPCS, INC.

                                   By: /s/ Timothy M. Yager
                                       ----------------------------------------
                                       Name: Timothy M. Yager
                                       Title: President and Chief Executive
                                                Officer

                                   BLACKSTONE iPCS CAPITAL PARTNERS L.P.

                                   By:  Blackstone Media Management Associates
                                        III, LLC, as general partner

                                   By: /s/ Mark T. Gallogly
                                       ----------------------------------------
                                       Name: Mark T. Gallogly
                                       Title: Member

                                   BLACKSTONE/iPCS L.L.C.

                                   By:  Member

                                   By: /s/ Mark T. Gallogly
                                       ----------------------------------------
                                       Name: Mark T. Gallogly
                                       Title: Member

                                   BLACKSTONE COMMUNICATIONS PARTNERS I L.P.

                                   By:  Blackstone Communications Management
                                        Associates I L.L.C., as general partner

                                   By: /s/ Mark T. Gallogly
                                       ----------------------------------------
                                       Name: Member
                                       Title:

                                      S-1
<PAGE>

                                   TCW/Crescent Mezzanine Partners II, L.P.
                                   TCW/Crescent Mezzanine Trust II

                                   By:  TCW/Crescent Mezzanine II, L.P.
                                        its general partner or managing owner

                                   By:  TCW/Crescent Mezzanine, L.L.C.
                                        its general partner

                                   By:    /s/ John C. Rocchio
                                          -------------------------------------
                                   Name:  John C. Rocchio
                                   Title: Managing Director

                                   TCW Shared Opportunity Fund II, L.P.

                                   By:  TCW Investment Management Company
                                   Its Investment Manager

                                   By: /s/ John C. Rocchio
                                       ----------------------------------------
                                   Name:   John C. Rocchio
                                   Title:  Managing Director

                                   By: /s/ Mark D. Senkpiel
                                       ----------------------------------------
                                   Name:   Mark D. Senkpiel
                                   Title:  Managing Director

                                   Shared Opportunity IIB, L.L.C.

                                   By:  TCW Asset Management Company
                                   as its Investment Adviser

                                   By: /s/ John C. Rocchio
                                       ----------------------------------------
                                   Name:   John C. Rocchio
                                   Title:  Managing Director

                                   By: /s/ Mark D. Senkpiel
                                       ----------------------------------------
                                   Name:   Mark D. Senkpiel
                                   Title:  Managing Director

                                      S-2
<PAGE>

                                   TCW Shared Opportunity Fund III, L.P.

                                   By:  TCW Asset Management Company
                                   Its Investment Adviser

                                   By: /s/ John C. Rocchio
                                       ----------------------------------------
                                   Name:   John C. Rocchio
                                   Title:  Managing Director

                                   By: /s/ Mark D. Senkpiel
                                       ----------------------------------------
                                   Name:   Mark D. Senkpiel
                                   Title:  Managing Director

                                   TCW Leveraged Income Trust, L.P.

                                   By:  TCW Advisers (Bermuda), Ltd.
                                   as its General Partner

                                   By: /s/ Mark D. Senkpiel
                                       ----------------------------------------
                                   Name:   Mark D. Senkpiel
                                   Title:  Managing Director

                                   By:  TCW Investment Management Company
                                        as Investment Adviser

                                   By: /s/ John C. Rocchio
                                       -----------------------------------------
                                   Name:   John C. Rocchio
                                   Title:  Managing Director

                                      S-3
<PAGE>

                                   TCW Leveraged Income Trust II, L.P.

                                   By:  TCW (LINC II), L.P.
                                   as its General Partner

                                   By:  TCW Advisers (Bermuda), Ltd.
                                   its General Partner

                                   By: /s/ Mark D. Senkpiel
                                       ----------------------------------------
                                   Name:   Mark D. Senkpiel
                                   Title:  Managing Director

                                   By:  TCW Investment Management Company
                                   as Investment Adviser

                                   By: /s/ John C. Rocchio
                                       ----------------------------------------
                                   Name:   John C. Rocchio
                                   Title:  Managing Director

                                      S-4
<PAGE>

                                   TCW Leveraged Income Trust IV, L.P.

                                   By:  TCW Asset Management Company
                                   As its Investment Adviser

                                   By: /s/ John C. Rocchio
                                       ----------------------------------------
                                   Name:   John C. Rocchio
                                   Title:  Managing Director

                                   By: /s/ Mark D. Senkpiel
                                       ----------------------------------------
                                   Name:   Mark D. Senkpiel
                                   Title:  Managing Director

                                   By: TCW (LINC IV), L.L.C.
                                   As General Partner

                                   By:  TCW Asset Management Company
                                   As its Managing Member

                                   By: /s/ John C. Rocchio
                                       ----------------------------------------
                                   Name:   John C. Rocchio
                                   Title:  Managing Director

                                   By: /s/ Mark D. Senkpiel
                                       ----------------------------------------
                                   Name:   Mark D. Senkpiel
                                   Title:  Managing Director

                                      S-5

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00016-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00016-of-00352.parquet"}]]