<PAGE>   1
                                                                   EXHIBIT 10.72



NOKIA

                           PURCHASE AND SALE AGREEMENT

         THIS AGREEMENT is hereby made on this 9th day of March, 1998 by and
between Nokia Mobile Phones, Inc. (hereinafter called "NOKIA"), having a place
of business at 6000 Connection Drive, Irving, Texas 75039; and Western PCS
Corporation (hereinafter called "WESTERN") having a place of business at 2001
N.W. Sammamish Road, #100, Issaquah, WA 98027.

                        RECITALS; OVERVIEW OF TRANSACTION

NOKIA has agreed to make available for purchase by WESTERN and its Affiliates
(including Cook Inlet Western Wireless PV/SS PCS L.P.), certain handsets,
modules and associated accessories for the prices described below. The parties
agree that this Agreement and the Attachments will be amended from time to time
to include all future GSM compatible and dual mode "Products" (defined below)
that NOKIA introduces into the North American market. This is not an exclusive
Agreement for either party -- WESTERN may purchase similar equipment from other
vendors and NOKIA may sell similar equipment to other carriers. This Agreement
is also being entered into simultaneously with an infrastructure supply contract
between Nokia Telecommunications Inc. and Western PCS Corporation; the two
contracts are in part consideration for each other.

1.       PRODUCTS, PRICES, QUANTITY.

1.1      NOKIA hereby agrees to sell, and WESTERN hereby agrees to purchase, the
         wireless communication terminals which are more fully described in
         ATTACHMENT "1" attached hereto and made a part hereof and hereinafter
         referred to as the "Handsets". NOKIA further agrees to offer for sale
         to WESTERN those certain accessories for the Handsets which are more
         fully described in ATTACHMENT "2" attached hereto and made a part
         hereof and hereafter referred to as the "Accessories". The Handsets and
         Accessories are hereafter collectively referred to as the "Products".

1.2      The prices for the Handsets shall be as set forth in ATTACHMENT "1".
         The prices for the Accessories shall be as set forth in ATTACHMENT "2".
         From time to time NOKIA may issue revised and restated ATTACHMENTS "1"
         or "2" which upon receipt by WESTERN shall be deemed incorporated into
         this Agreement and shall supersede the then existing ATTACHMENT "1" or
         ATTACHMENT "2" as applicable. Notwithstanding the foregoing, NOKIA
         shall not increase the price of any Products without the prior written
         approval of WESTERN.



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   2

1.3      All GSM and dual mode GSM/AMPS handsets sold to WESTERN will be
         configured with embedded software so as to function only with a SIM
         supplied by WESTERN (SIM lock), unless otherwise specifically requested
         by WESTERN. More information about the SIM lock software are included
         in the WINLOCK USER's GUIDE in ATTACHMENT "7" and the WINLOCK USER'S
         GUIDE APPENDIX: OPENING SIM LOCKS, in ATTACHMENT "8".

1.4      * If NOKIA fails to meet this requirement, then WESTERN may return any
         discontinued Product (and if the Product is a handset, all related
         accessories) on hand at the time of the notice or any time thereafter
         for a full refund.

1.5      * The prices stated previously do not include the cost of the dual mode
         module. The tentative release date for this handset is * , and Nokia
         will exercise reasonable commercial efforts to meet such date.

         *

1.6      NOKIA agrees to use reasonable commercial efforts in the development
         and sale of a * .

1.7      *.

         A.    *.

         B.    *.

         C.    *.

         D.    *.

         E.    *.

         F.    *.

1.8      *

2.       PURCHASE ORDERS AND FORECASTS.

2.1      All orders for Products must be accompanied by a purchase order from
         WESTERN to NOKIA. Specific purchase orders shall specify the type and
         quantity of Products ordered, unit and extended pricing as well as
         desired shipping schedule and ship-to instructions. Acknowledgment of
         receipt of purchase orders shall not constitute acceptance.

2.2      Each month during the term of this Agreement, WESTERN will provide
         NOKIA with * . The purpose of the Forecast is merely to assist NOKIA in
         maintaining an orderly 



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   3

         production flow so that WESTERN's delivery requirements can be met.
         "Forecast" means a *.

         WESTERN may change the shipping destination within * of the requested
         ship date. In addition to the specific time frames set forth above,
         NOKIA will exercise reasonable commercial efforts to fill orders and
         accommodate change requests which do not meet the specific time
         parameters set forth above.

2.3      *.

2.4      The minimum order quantity shall be three hundred ninety (390) Handsets
         per each ship-to address on an order (except for any Handset with a
         unit price above $500, for example the Communicator 9000i). The minimum
         order value for Accessories shall be One Thousand and 00/100 USD
         ($1,000.00) per each ship-to address on an order.

2.5      *.


3.       PACKING AND SHIPMENT.

3.1      The Handsets shall be packed in bulk in accord with NOKIA's standard
         bulk product packaging procedures, which procedures are subject to
         reasonable changes from time to time upon notice from NOKIA to WESTERN.
         Any WESTERN request for different or additional packing and fulfillment
         services shall be subject to NOKIA's reasonable approval and mutual
         agreement as to any increases in prices related to the provision of
         such services.

3.2      All shipments will be made F.O.B. destination on NOKIA's designated
         freight carrier with freight charges to be borne by WESTERN (these
         freight charges will be added to the relevant invoice, to be paid by
         WESTERN). NOKIA will bear the risk of loss to the destination and
         arrange for and absorb the cost of insurance to cover such shipments.
         Any claims of visible, shipment-related loss or damage concerning the
         Products shipped to WESTERN or drop-shipped for WESTERN must be
         reported to NOKIA within * of delivery. NOKIA will make reasonable
         efforts to expedite shipments which are expected to be delayed if
         shipped through normal channels, with the costs of such expediting to
         be the responsibility of NOKIA, unless caused by the actions of
         WESTERN.

3.3      If WESTERN designates their own freight forwarder of WESTERN then the
         shipment will be F.O.B. Fort Worth with freight charges to be borne by
         WESTERN ("freight collect"). WESTERN shall bear the risk of loss
         relating to such shipments. It shall be WESTERN's sole responsibility
         to procure insurance for each such shipment in an amount to cover the
         replacement cost of the shipment. WESTERN will provide proof of
         insurance to NOKIA upon request. In the event WESTERN discovers
         shortages or damages related to the shipment WESTERN will be solely
         responsible to file necessary claims and pursue recovery from its
         insurer. NOKIA 



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   4

         agrees to reasonably cooperate with WESTERN in furnishing information
         WESTERN needs to file such shipment-related insurance claims. Provided
         the bill of lading is in order indicating the proper number of
         undamaged cartons (weighing the proper number of pounds) were placed
         into the hands of WESTERN's designated freight carrier, NOKIA shall not
         be required to replace such lost or damaged goods nor shall WESTERN be
         entitled to deduct the value thereof from the payment of the
         corresponding invoice as NOKIA shall not have any insurance covering
         such shipments.

3.4      If WESTERN requests that any of the Products be drop-shipped to
         separate locations, such instructions and authorization must be
         submitted to NOKIA in writing. The number of drop-ship locations
         specified by WESTERN may not exceed * .

3.5      * .

3.6      NOKIA hereby offers packaging of individual units for * per unit (which
         covers the cost of the box and labor associated with inserting the
         unit, literature and standard accessories).

4.       CREDIT  AND PAYMENT.

4.1      The terms of payment shall be net due thirty (30) days from date of
         invoice. NOKIA shall invoice WESTERN for the Products at the time of
         shipment. But penalties for late payments will not accrue until sixty
         (60) days after date of invoice (see Section 4.3).

4.2      WESTERN shall have an initial credit line under this Agreement of *.
         NOKIA shall determine in its reasonable discretion from time to time
         the credit line which is to be available to WESTERN. NOKIA may withhold
         the granting of credit if WESTERN has not paid its undisputed invoices
         to NOKIA within 60 days. If NOKIA withholds the granting of credit (or
         additional credit as the case may be) for any reason WESTERN may
         continue to order and receive Products on a "cash in advance" basis.

4.3      WESTERN shall pay NOKIA interest at the rate of one and one-half
         percent (1-1/2%) per month (pro rated for any partial months) on all
         late payments. Payment will be considered late if not received within *
         of date of invoice.

4.4      WESTERN shall be responsible for all taxes, fees or other charges
         imposed by any governmental entity arising with respect to the sales of
         Products and accessories to WESTERN, except any taxes that may be based
         on NOKIA's net income or any import duties incurred by NOKIA in
         bringing the Products into the U.S.. All amounts due NOKIA hereunder
         shall be net of any such charges. If WESTERN provides NOKIA with
         appropriate documentation confirming exemption to sales taxes NOKIA
         agrees not to invoice for sales taxes, on any applicable transactions.



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   5

4.5      Unless expressly stipulated to the contrary, all rebates, credits,
         co-ops or accruals which may from time to time be due from NOKIA to
         WESTERN either pursuant to the terms of this Agreement, or under any
         special or promotional programs which the parties may agree upon during
         the term hereof, shall be paid to WESTERN in the form of an open credit
         memo which WESTERN may use towards payment of any outstanding amounts
         owed to NOKIA. If at the end of the term of this Agreement, WESTERN has
         any remaining open credit memos or portions thereof and shall not owe
         any additional sums to NOKIA, WESTERN may endorse and return such open
         credit memos to NOKIA in exchange for a cash payment in the amount of
         such open credit memos. Such payment will be made within thirty (30)
         days.


5.       CO-OP ADVERTISING ACCOUNT; SPECIAL MARKETING ACCOUNT.

5.1      NOKIA agrees to make a co-op advertising program available to WESTERN
         in accord with the terms and conditions set forth in ATTACHMENT "4"
         attached hereto and made a part hereof which terms and conditions are
         subject to reasonable changes from time to time upon notice from NOKIA
         to WESTERN. WESTERN may use the available balance in such account for
         advertising and promotion in accord with the provisions of ATTACHMENT
         "4".

5.2      *.

6.       PRICE PROTECTION.

6.1      *.

6.2      *.

6.3      *:

6.3.1    *.

6.3.2    *.

6.3.3    *.

6.3.4    *.

6.4      *:

6.4.1    *.

6.4.2    *.



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   6

6.4      *.

7.       TERRITORY AND TRANSSHIPMENT.

7.1    Except as otherwise provided herein, WESTERN is authorized to resell
       Products purchased under this Agreement to end-users only if carrying the
       "Voice Stream" brand (or other WESTERN-owned or licensed brand) and only
       in those certain cellular geographical statistical areas, major trading
       areas and/or basic trading areas in which WESTERN, its "Affiliate" or a *
       is a system operator or system manager. The foregoing area shall be
       referred to as the "Territory". The right to resell into any Territory
       will also be contingent on WESTERN, its Affiliate or * continuing to be a
       "carrier" as that term is commonly used in the telecommunications
       industry.

7.2    During the term of this Agreement, WESTERN shall not transship, sell, or
       otherwise transfer the Products outside the Territory. *. Further, except
       as set forth above, WESTERN shall not knowingly sell, or continue to
       sell, the Products to any other person or entity who intends to
       distribute the Products outside the Territory. WESTERN for these purposes
       will include Affiliates.

7.3    NOKIA agrees that, when commercially reasonable, it will include WESTERN
       in its pre-launch testing of new or next generation products, with at
       least * advance notice to WESTERN. In such cases, NOKIA agrees to deliver
       *.

7.4    *.

7.5    NOKIA agrees to keep WESTERN reasonably apprised of its current and
       planned revisions to software and hardware for its Products, including,
       if reasonably feasible, quarterly reports showing current and planned
       software and hardware revisions for all models, current functionality
       issues affecting current models, any planned fix dates for software or
       hardware problems, and a monthly summary of quantities shipped each month
       to WESTERN.

8. WARRANTY, RETURNS, SERVICE.

8.1      NOKIA warrants the Products to WESTERN, its purchasers and to end-users
         according to the applicable limited warranty documentation that
         accompanies the Products, a copy of which is included in Attachment 5.

8.2      Warranty returns shall be subject to NOKIA's reasonable repair and
         return policies in effect from time to time. If no-fault-found Handset
         returns directly from WESTERN exceed * of all returns from WESTERN then
         WESTERN will * pay per each no-fault-found Handset in excess of the *
         threshold that have been returned to NOKIA for warranty repair. NOKIA
         agrees to give WESTERN reasonable notice before imposing this fee on
         no-fault found Handsets. NOKIA also agrees to provide regular reports
         of the aggregate types of Handset problems encountered and repaired
         received by NOKIA from WESTERN's markets (limited to those Products



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   7

         which are clearly identified as WESTERN's with the VoiceStream brand or
         otherwise). The parties agree to reasonably cooperate with each other
         in the investigation of no-fault found units, particularly in
         situations where one party has identified a defect but the other party
         has found no defect.

8.3      WESTERN shall comply with NOKIA's reasonable procedures related to the
         tracking of in-bound returned Products and accessories.

8.4      NOKIA agrees to offer for sale to WESTERN functionally equivalent
         replacement and repair parts for Handsets and "Standard Kit
         Accessories" (defined herein) until the later of: (i) five (5) years
         after the last delivery of Handsets hereunder; or (ii) the period of
         time required by applicable law. "Standard Kit Accessories" for these
         purposes shall mean the battery, rapid travel charger, warranty card
         and owner's manual that are included with the Handset in a standard
         sale to end-users.

8.5      *.

8.6      WESTERN shall not modify the Products in any manner without NOKIA's
         written consent. WESTERN will not in any manner modify, remove or alter
         the documentation accompanying the Products, without NOKIA's written
         consent. If WESTERN adds any additional documentation to accompany the
         Products, WESTERN shall indemnify and hold harmless NOKIA for any
         third-party claims related to any information contained within the
         additional documentation which contradicts any information contained in
         NOKIA's User's Manual.

8.7      Unless prohibited by law, WESTERN agrees not to knowingly sell
         non-NOKIA approved accessories with NOKIA Products in violation of the
         Product documentation. WESTERN hereby indemnifies and holds harmless
         NOKIA for any claims, liabilities, loss or damage for injury or damage
         caused by a non-NOKIA approved accessory, arising out of any sales by
         WESTERN in violation hereof, up to a maximum of WESTERN's available
         insurance limits (assuming WESTERN maintains insurance limits in
         amounts customary in the industry). NOKIA agrees to review and make
         reasonable efforts to approve any non-NOKIA accessories, that are
         compatible with the Nokia Products offered for sale hereunder. NOKIA
         further agrees to provide WESTERN with updated lists of authorized
         accessory providers.

8.8      All of NOKIA's Products delivered under this Agreement will be made
         Millennium compatible and are covered by the standard warranty
         provisions hereunder. "Millennium compatible" for these purposes will
         mean that the Product will record, store, process and present calendar
         dates falling on or after January 1, 2000, in substantially the same
         manner, and with substantially the same functionality as such Product
         handled calendar dates falling on or before December 31, 1999, and that
         such Product will do so without material interruption and with no
         material ambiguity as to century.

9.       LIMITATION OF LIABILITY.



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   8

9.1      NOTWITHSTANDING ANY OTHER PROVISION OF THIS AGREEMENT, NEITHER PARTY
         (NOR ITS AFFILIATES) SHALL UNDER ANY CIRCUMSTANCES BE LIABLE FOR ANY
         SPECIAL, INDIRECT, CONSEQUENTIAL OR INCIDENTAL DAMAGES OR LOST PROFITS,
         LOST OPPORTUNITIES, LOST REVENUES OR DAMAGES HOWSOEVER ARISING UNDER OR
         IN CONNECTION WITH THIS AGREEMENT (INCLUDING LATE DELIVERY). This
         provision is not intended to limit, modify or rescind the provisions of
         Section 3.5 (late delivery damages) and Section 13 (trade infringement
         indemnity).

10.      FORCE MAJEURE.

10.1     Neither party shall be liable to the other for any delay or
         non-performance of its obligations hereunder in the event and to the
         extent that such delay or non-performance is due to an event of Force
         Majeure (as hereinafter defined). The following events shall be
         recognised as events of Force Majeure: War, civil unrest, strikes,
         lock-outs and other general labor disputes, acts of government, natural
         disasters, exceptional weather conditions, breakdown or general
         unavailability of transport facilities, accidents, fire, explosions,
         and general shortages of energy, materials and components, and other
         similar events, in each case which are beyond the control of the party
         and which occur after the date of signing of this Agreement and which
         were not reasonably foreseeable at the time of signing of this
         Agreement and whose effects are not capable of being overcome without
         unreasonable expense to the party concerned. Each party shall inform
         the other party of the occurrence of any event of Force Majeure, its
         expected duration and cessation, respectively without delay. The party
         whose performance is affected by Force Majeure shall not incur any
         liability to the other party as a result of cancellation pursuant to
         this Paragraph 10.1. WESTERN may cancel (in writing) the undelivered
         portion of any order if the delay due to a force majeure event exceeds
         thirty (30) days from the shipment date originally confirmed by NOKIA.
         For the sake of clarity it is recorded here that the party whose
         performance is so affected by Force Majeure shall not have the right to
         cancel this Agreement due to such Force Majeure. Delay or
         non-performance arising in the performance by a subcontractor of a
         party hereto shall be excusable only if the subcontractor itself would
         be excused under the foregoing provisions as if said subcontractor had
         contracted directly with the other party. If NOKIA can not ship full
         quantities of Products to WESTERN due to a Force Majeure event, NOKIA
         agrees to equitably allocate its available quantities between WESTERN
         and NOKIA's other customers.


11.       TERM AND TERMINATION.

11.1     Unless sooner terminated in accordance with the provisions herein, the
         initial term of this Agreement will begin on the effective date hereof
         and extend until February 28, 2003 (five years).



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   9

11.2     Either party has the right to terminate this Agreement if the other
         party rejects or fails to perform or observe any of its obligations
         hereunder, and such condition is not remedied within thirty (30) days
         after written notice is given to the defaulting party.

11.3     Either party has the right to terminate this Agreement, if the other
         party assigns this Agreement or any of its rights hereunder. Provided,
         however, either party may assign this Agreement to a successor entity
         which purchases all or substantially all of the ownership interest or
         assets in such party.

11.4     Termination of this Agreement, howsoever caused, shall not terminate
         WESTERN's liability to pay for any Products previously shipped to
         WESTERN in accordance with Section 2 of this Agreement.

11.5     Sections 3.5 (damages), 8 (warranty), 9 (limitation of liability), 11
         (termination), 12 (indemnity for product liability), 13 (indemnity for
         infringement), 14 (governing law), 16 (publicity), 17 (trademarks), and
         19 (general terms), and any other provisions which by their nature
         should survive termination, shall survive termination of this
         Agreement. The obligations contained in Section 15 shall survive
         termination of this Agreement for two (2) years.

12.      INDEMNITY.

12.1     NOKIA agrees to defend and indemnify WESTERN, its affiliates,
         customers, subsidiaries, parent company, shareholders, officers,
         directors, agents, employees, assigns and successors from and against
         any losses, damages, claims, demands, suits, liabilities and expenses
         (including reasonable attorney's fees) that arise out the use of the
         Products or NOKIA's actions in connection with this Agreement, provided
         that: (i) WESTERN notifies NOKIA in writing within thirty (30) days of
         the claim; (ii) NOKIA has sole control of the defense and all related
         settlement negotiations; and, (iii) WESTERN provides NOKIA with the
         assistance, information and authority necessary for NOKIA to perform
         its obligations under this Section 12.1; provided always that WESTERN
         will not admit liability under any circumstances. Reasonable
         out-of-pocket expenses incurred by WESTERN in providing such assistance
         will be reimbursed by NOKIA.

13.      INDEMNITY FOR INFRINGEMENT, INJUNCTION.

13.1     NOKIA agrees to defend and indemnify WESTERN against any claim that the
         Products sold by NOKIA hereunder infringe the intellectual property
         rights of third parties provided that: (i) Products are not modified by
         WESTERN or by any other party at the direction of WESTERN; (ii) WESTERN
         notifies NOKIA in writing within thirty (30) days of the claim; (iii)
         NOKIA has sole control of the defense and all related settlement and
         licensing negotiations; and, (iv) WESTERN provides NOKIA with the
         assistance, information and authority necessary to perform NOKIA's
         obligations under this Section 13.1; provided always that WESTERN shall
         not 



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   10

         admit liability under any circumstances. Reasonable out-of-pocket
         expenses incurred by WESTERN in providing such assistance will be
         reimbursed by NOKIA.

13.2     If the use or sale of any Products furnished hereunder is enjoined as a
         result of any suit, NOKIA at its option and at no expense to WESTERN
         shall: (i) obtain for WESTERN the right to use, sell or re-sell said
         items or shall (ii) substitute an equivalent product reasonably
         acceptable to WESTERN and extend this indemnity thereto, or if (i) or
         (ii) cannot be reasonably attained for commercial reasons, NOKIA shall
         accept the return of the Products and/or accessories and reimburse
         WESTERN the purchase price thereof, less a reasonable charge for wear
         and tear.

13.3     WESTERN covenants not to sue and agrees not to assert any of its own
         patents, or patents it controls, against NOKIA with respect to any
         Products purchased by WESTERN from NOKIA hereunder.

14.      GOVERNING LAW, ATTORNEY'S FEES.

14.1     This Agreement shall be governed by, and construed and enforced in
         accordance with the laws of New York, without giving effect to conflict
         of laws principles.

14.2     Except as set forth in Section 1.7, in the event either party shall at
         any time institute any legal action or proceedings of any nature for
         the enforcement of this Agreement, or any of the terms and provisions
         hereof, the prevailing party in such action or proceeding shall be
         entitled to recover all costs, including attorney's fees incurred in
         connection therewith, or in connection with appellate proceedings if
         said party shall prevail upon appeal.

15.      CONFIDENTIALITY.

15.1     Each party shall keep confidential and shall not without the prior
         consent in writing of the disclosing party, copy or disclose to any
         third party (except Affiliates, and *s on a need-to-know basis) the
         content of any documents or information, which is identified as being
         confidential and which is acquired from the other party in connection
         with this Agreement or the Products. Each party shall copy and use the
         same solely for the purpose of this Agreement and the normal use of the
         Products.

15.2     The obligations imposed upon either party under Section 15.1 above
         shall not apply to information whether or not designated as
         "Confidential": (i) which is made public by the disclosing party; (ii)
         which the receiving party can reasonably demonstrate is already in the
         possession of the receiving party and not subject to an existing
         agreement of confidence; (iii) which is received from a third party
         without restriction and without breach of this Agreement; (iv) which is
         independently developed by the receiving party as evidenced by its
         records; (v) which the receiving party is required to disclose pursuant
         to a valid order of a court or legal requirements of other governmental
         body or any political subdivision 



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   11

         thereof; provided, however, that the recipient of the information shall
         first have given notice to the disclosing party and made a reasonable
         effort to obtain a protective order requiring that the information
         and/or documents so disclosed be used only for the purposes for which
         the order was issued.

15.3     The parties agree that this Agreement (including all exhibits attached
         hereto) is confidential and shall not be disclosed to any third party.

15.4     The obligations in this Section 15 shall survive termination of this
         Agreement for two (2) years.

16.      PUBLICITY.

16.1     WESTERN and NOKIA agree to submit to each other for approval all
         publicity matters whenever the other's name is used in connection with
         matters pertaining to the relationship established by this Agreement.

17.      TRADEMARKS.

17.1     It is expressly agreed and understood that trademarks, trade names,
         insignia, etc. (herein "Marks") involving the words "Nokia" or
         WESTERN's owned or licensed trademarks ("WESTERN's Marks") are and
         shall remain the exclusive property of NOKIA or WESTERN (as applicable)
         and that the other party shall have no right to such trademarks and
         trade names. All use of Marks involving the words "Nokia" or "WESTERN's
         Marks" (as applicable) in the promotion and sale of goods in the
         Territory shall be deemed to be inure only for the benefit of the owner
         of such Marks. Neither party without the express written consent of the
         other shall have the right to use any Marks in the sale, lease or
         advertising of any products or on any product container, component
         part, sales, advertising or promotional materials. Any approved use of
         the Marks shall be in accord with such party's policies governing the
         size, typeface and other usage requirements.

17.2     If WESTERN requests that any of the Products are to be sold to WESTERN
         bearing any trademark other than the "Nokia" trademark, the terms and
         conditions concerning such private labeling of the Products shall be
         subject to the mutual written agreement of the parties. WESTERN shall
         indemnify and save NOKIA harmless from any liability, judgments,
         decrees, costs and expenses, including reasonable attorney(s) fees
         incurred by NOKIA suits brought by any party against NOKIA related to
         NOKIA affixing any trade names, logos or trademark(s) on the Products
         in accord with any instructions given by WESTERN.

17.3     Products not purchased by WESTERN under this Agreement which contain
         WESTERN's trademarks or trade names shall have all such trademarks or
         trade names removed prior to any sale, use or disposition thereof by
         NOKIA. NOKIA agrees to indemnify and hold WESTERN harmless from any
         actual damage arising out of failure to do so.



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* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   12

17.4     The NOKIA trademark must not be removed from any Product supplied under
         this Agreement, without NOKIA's approval.

18.      AFFILIATES.

18.1     For the purpose of this Agreement the term "Affiliate" shall mean
         another entity which controls a party hereto, or is controlled by a
         party hereto or which is under common control with a party hereto.
         Control, for the purposes of this Paragraph, shall mean the direct or
         indirect ownership of 50% or more of the shares or interests entitled
         to vote for the directors thereof or the equivalent, for so long as
         such entitlement exists, or equivalent power over management thereof.
         Any Affiliate of Purchaser which does not operate or manage a licensed
         PCS system in the U.S. shall be excluded from this definition. Cook
         Inlet Western Wireless PV/SS PCS, L.P. shall be considered an
         "Affiliate" under this Agreement.

19.2     Each Affiliate shall be entitled to purchase Products under the terms
         and conditions of this Agreement provided (i) the Affiliate executes a
         written acknowledgement agreeing to be bound by the terms and
         conditions of this Agreement; (ii) NOKIA must be reasonably satisfied
         with the creditworthiness and reputation of such Affiliate, and (iii)
         such Affiliate must not be a direct competitor of NOKIA or an opposing
         party in pending litigation against NOKIA. However, if WESTERN elects
         to directly purchase items on behalf of an Affiliate and remains fully
         liable therefor, no separate agreement will be required between NOKIA
         and the Affiliate and subsections (i) through (iii) above will not be
         applicable.

18.3     * .

18.4     * .


19.      GENERAL.

19.1     This Agreement expresses the entire understanding and agreement of the
         parties with reference to the sale of NOKIA Products and other items to
         WESTERN, and is a complete and exclusive statement of the terms of this
         Agreement, and no representations, amendments, or agreements modifying
         or supplementing the terms of this Agreement, shall be valid unless in
         writing, signed by persons authorized to sign agreements on behalf of
         both parties. This Agreement supersedes any prior agreement between the
         parties related to the subject matter hereof.

19.2     During the term of this Agreement, WESTERN's purchase of Products, or
         any accessories for the Products, from NOKIA, shall be deemed to be
         purchased under the terms and conditions of this Agreement. The terms
         and conditions of WESTERN's purchase orders, NOKIA's acknowledgments or
         any other writings by either party which differ from the terms and
         conditions hereunder shall not be effective unless specifically
         accepted in writing by amendment to this Agreement 



                                       12


* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   13

         made separate and apart from said terms and conditions. All orders are
         subject to acceptance at NOKIA's home office in Tampa, Florida. No
         person shall have the authority to accept any order on behalf of
         NOKIA's Tampa office.

19.3     No waiver by NOKIA or WESTERN of any of the terms, conditions,
         covenants or agreements of this Agreement shall be binding unless in
         writing and signed by the party to be charged, and no such waiver shall
         be deemed or taken as a waiver at any time thereafter of the same or
         any other term, condition, covenant or agreement herein contained, nor
         of the strict and prompt performance thereof. A waiver by course of
         performance to any of the terms and provisions hereunder on one
         occasion shall not be construed as a waiver for any other occasion.

19.4     If any one or more provisions of this Agreement is deemed to be
         unenforceable, the parties hereby express by agreement that the
         remainder of this Agreement is nevertheless to be fully enforced and to
         be interpreted as valid in every respect except for such unenforceable
         provisions.

19.5     The status of NOKIA shall be that of independent contractor only, not
         under any circumstances is this Agreement intended to be a partnership
         or joint venture.

19.6     The parties mutually agree that the headings and captions contained in
         this Agreement are inserted for convenience or reference only, and are
         not to be deemed part of, or to be used in construing, this Agreement.

19.7     *.

19.8     The parties agree that the right to return defective Products to NOKIA,
         as provided herein, is intended to apply regardless of whether the
         original NOKIA Products were purchased directly from NOKIA or from an
         approved distributor of NOKIA. The parties agree to cooperate in
         developing a mutually acceptable procedure to implement this provision
         in a manner acceptable to each party.


                                   ***********

ATTACHMENTS:

1. HANDSET PRICING
2. ACCESSORIES PRICING
3. EXAMPLES OF ESSENTIAL HANDSET FUNCTIONS [for purposes of Section 8.5]
4. CO-OP ADVERTISING PROGRAM
5. WARRANTY DOCUMENTATION
6. FORM OF NOKIA CONFIRMED SHIPPING DATE REPORT
7. WINLOCK USER GUIDE
8. WINLOCK USER GUIDE APPENDIX: OPENING SIM LOCKS



                                       13


* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.
<PAGE>   14

         IN WITNESS WHEREOF, this Agreement was entered into as of the day and
year first written above.


ACCEPTED:                                    ACCEPTED:


WESTERN PCS CORPORATION                      NOKIA MOBILE PHONES, INC.

By:      /s/BOB STAPLETON                    By:     /s/JYRKI SALO           
         ------------------------                    ------------------------

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

Date:    March 9, 1998                       Date:   March 9, 1998



                                       14


* Information omitted and filed separately with the SEC pursuant to request for
confidential treatment under Rule 406 of the Securities Act of 1933, as amended.