Document:

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                                                  CONTRACT NUMBER: C949017S0002

                              AMENDED AND RESTATED
                       STRATEGIC ALLIANCE AGREEMENT NO. 2

                                     BETWEEN

                      GTE COMMUNICATION SYSTEMS CORPORATION

                                       AND

                             PAGEMART WIRELESS, INC.

                        CONTRACT MANAGER: GALE L. MARVIN

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                                TABLE OF CONTENTS

<TABLE>
<S>                                                       <C>
1.  RECITALS ..........................................    1

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

3.  DESCRIPTION AND SCOPE .............................    2

4.  TERM ..............................................    2

5.  TERMINATION .......................................    2

6.  RETENTION OF CUSTOMERS ............................    3

7.  GTE RESPONSIBILITIES ONE-WAY ......................    4

8.  PMWI RESPONSIBILITIES .............................    4

9.  CONSTRUCTION SCHEDULE .............................    5

10. PAYMENT ...........................................    5

11. OWNERSHIP OF FACILITIES AND FREQUENCIES ...........    6

12. CONFIDENTIAL INFORMATION ..........................    6

13. DISPUTE RESOLUTION ................................    7

14. GENERAL PROVISIONS ................................    8

15. MAINTENANCE AND REPAIRS AT GTE OWNED SITES ........   13

16. SIGNATURES ........................................   14

EXHIBIT A - GTE AFFILIATES
</TABLE>

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                              AMENDED AND RESTATED
                       STRATEGIC ALLIANCE AGREEMENT NO. 2

     THIS AMENDED AND RESTATED STRATEGIC ALLIANCE AGREEMENT NO. 2 ("Agreement")
is made by and between PageMart Wireless, Inc., a Delaware corporation, with
offices for the purpose of this Agreement located at 3333 Lee Parkway, Suite
100, Dallas, Texas 75219 ("PMWI") and GTE Communication Systems Corporation, a
Delaware corporation, acting through its GTE Supply division for the benefit of
itself and its affiliates listed in Exhibit A, with offices located at 700
Hidden Ridge, Irving, Texas 75038 ("GTE") (collectively referred to as the
"Parties" and individually as a "Party").

1.   RECITALS

     The Parties recognize the mutual benefits to be gained if they cooperate in
     the deployment of paging network facilities in the state of Hawaii
     ("HAWAII") for the provision of wireless messaging and data transmissions.

     This Agreement is intended to create a framework and to define the terms
     and conditions under which the Parties shall implement their strategic
     alliance in a manner that maximally complements the wireless needs of the
     Parties.

     IN CONSIDERATION of the above Recitals, the terms and provisions set forth
     herein, the mutual benefits to be gained by the performance thereof, and
     for the good and valuable consideration, the receipt and sufficiency of
     which are hereby acknowledged, the Parties hereto agree as follows:

2.   DEFINITIONS

     Facilities - Both One-Way Facilities and NPCS Facilities.

     NPCS - (Narrowband PCS) - NPCS services operating in the 901-902 MHz,
     930-931, and 940-941 MHz bands.

     NPCS FACILITIES - Equipment to be integrated into PMWI's NPCS network
     infrastructure for transmission and receipt of NPCS messages which shall
     include but not be limited to NPCS paging transmitters and receivers,
     satellite downlinks and cable deployed for the transmitting and receiving
     of two way paging messaging services.

     One-Way Facilities - The GTE-supplied wireless network infrastructure in
     the state of Hawaii, which shall include but not be limited to paging
     transmitters, satellite downlinks, antennas, and cable being deployed to
     PMWI for the transmission of one-way paging/messaging services on PMWI's
     One-Way paging frequencies 929.6625 MHz and 929.7125 MHz.

     Project - The site specific installation function of NPCS or One-Way
     Facilities.

     RSA - Resale Agreement No. C989107SC001 previously entered into between
     the Parties.

     TURN UP DATE - That date when the One-Way Facilities on the island of Oahu
     are

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     functioning properly and the first local subscriber has been activated.

3.   DESCRIPTION AND SCOPE

     a.   This Agreement will govern the cooperation of the Parties in
          connection with any Project in HAWAII involving, without limitation,
          the location, design, construction, and management of the Facilities.

     b.   All telecommunications and wireless services that are the subject of
          this Agreement shall be provided in accordance with the rules,
          regulations and orders of the applicable state regulatory agency, the
          Federal Communications Commission ("FCC") and the courts of the United
          States.

     c.   The obligations of the Parties to cooperate and work together in
          connection with any Project shall be as expressly set forth in this
          Agreement. Neither Party undertakes by this Agreement or otherwise to
          perform or discharge any liability or obligation for the other Party
          not specifically contained herein, whether regulatory or contractual,
          or to assume any responsibility whatsoever for the conduct of the
          business or operations of the other Party. Nothing contained herein is
          intended to give rise to a partnership or joint venture between the
          Parties or to impose upon the Parties any of the duties or
          responsibilities of partners or joint venturers. Neither Party shall
          have any right or authority to act for, or to assume, create or incur
          any obligation, liability or responsibility of any kind, whether
          express or implied, against, in the name of, or on behalf of, the
          other Party, except as expressly provided in this Agreement.

     d.   Unless otherwise specified herein, each Party shall assume and bear
          all expenses, costs and fees incurred or assumed by such Party whether
          or not the transactions provided for by this Agreement shall be
          effectuated.

4.   TERM

     The term of this Agreement shall commence upon the execution of this
     Agreement by both Parties and shall end on December 31, 2004, unless
     earlier terminated in accordance with Section 5. The term of this Agreement
     may be extended for successive one-year periods following the expiration of
     the initial term by mutual written consent of the Parties at least ninety
     (90) days prior to the end of the then current term.

5.   TERMINATION

     a.   Termination for Cause. This Agreement may be abandoned or terminated
          at any time after the effective date of this Agreement by either
          Party's furnishing written notice should the other Party:

          i.   breach, refuse or fail in any material respect properly to
               perform any of its duties, obligations or commitments under this
               Agreement, any one of which shall constitute a default, which
               default is not substantially cured within thirty (30) days after
               receiving written notice specifying the nature of the default;

          ii.  commence or have commenced against such Party any proceeding,

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               whether under court supervision or otherwise, for the liquidation
               of such Party, determination of insolvency of such Party,
               appointment of a receiver for such Party, assignment for the
               benefit of all or substantially all of such Party's creditors, or
               the bankruptcy of such Party; or

          iii. indefinitely suspend its normal business operations.

          If this Agreement is terminated by GTE as a result of PMWI's conduct
          described in this Section 5(a), then Section 5(b)(i) below shall be
          enforced between the Parties. If this Agreement is terminated by PMWI
          as a result of GTE's conduct described in this Section 5(a), then
          Section 5(b)(ii) below shall be enforced between the Parties.

     b.   Termination for Convenience. This Agreement may be abandoned or
          terminated at any time after January 1, 2001, by either party, subject
          to the following:

          i.   If this Agreement is terminated for convenience by PMWI, PMWI
               agrees, provided that GTE continues to timely make payments to
               PMWI under the RSA, to continue utilizing its licensed radio
               frequencies on the Facilities until the Termination Date, or
               until such time that GTE has gained its own spectrum rights, plus
               an additional ninety (90) days, or until such time that GTE no
               longer has customers receiving paging or messaging services from
               PMWI over the Facilities, whichever occurs first. In such event,
               PMWI shall only be required to pay the usage fees set forth in
               Section 10 relating to One-Way Facilities and NPCS Facilities for
               so long as PMWI has customers utilizing the One-Way Facilities or
               NPCS Facilities, as applicable.

          ii.  If this Agreement is terminated for convenience by GTE, GTE
               agrees to keep the Facilities, operating in a normal capacity and
               permit PMWI to keep the NPCS Facilities on the GTE sites for a
               period of one (1) year after notice provided PMWI continues to
               make the required payments under Section 10.a.iii.

     c.   If this Agreement is not renewed, the Parties agree to keep the
          Facilities operating in a normal capacity until the Termination Date.

     d.   The termination of this Agreement shall not affect any obligation of a
          Party which is unfulfilled as of such termination provided that such
          obligation by its terms or nature survives such termination.

6.   RETENTION OF CUSTOMERS

     If this Agreement is terminated, each Party shall:

     a.   Have the right to retain those customers acquired by that Party.

     b.   Agree to commercially reasonable cooperation to support the other in
          its endeavors to continue providing wireless messaging and data
          transmissions to its customers.

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7.   GTE RESPONSIBILITIES ONE-WAY

     a.   For the Project, GTE shall have the final responsibility, subject to
          the consent of PMWI which shall not be unreasonably withheld, of
          determining when and where the One-Way Facilities shall be
          constructed.

     b.   For the Project, GTE shall, at its sole cost and expense, finance the
          construction of One-Way Facilities on which PMWI would utilize PMWI's
          one-way paging frequencies to provide wireless services to PMWI's
          customers and to GTE as a reseller of PMWI's wireless services.

     c.   In conjunction with the construction of the One-Way Facilities, GTE
          shall be financially responsible for purchasing any transmitters,
          antennae, satellite downlink, cable, and third party labor necessary
          to install the One-Way Facilities. GTE shall additionally be
          responsible for One-Way Facility maintenance and furnishing any
          upgrades, whether software or otherwise, reasonably necessary for the
          operation of the One-Way Facilities.

     d.   To the extent that the One-Way Facilities may be located on property
          owned by or beneficially belonging to a third party, GTE shall be
          solely responsible for negotiating the terms and conditions of any
          lease or permit, any expenses associated with lease site preparation
          which shall include but not be limited to shelter construction and
          provisioning of electrical power and for the remittance of any
          operating expenses associated with that lease or permit.

     e.   For the Project, GTE shall be responsible for payment of all property
          taxes, whether real or personal, on all One-Way Facilities that may be
          imposed or assessed by any appropriate taxing authority.

8.   PMWI RESPONSIBILITIES

     a.   For the Project, PMWI shall be solely responsible for conducting any
          propagation studies at PMWI's expense.

     b.   For the Project, PMWI at no cost or expense to GTE, shall license the
          Facilities with the FCC at locations selected by GTE as described in
          Section 7(a) herein, to utilize PMWI's nationwide frequencies to
          provide wireless services to PMWI's customers and to GTE as a reseller
          of PMWI's wireless services.

     c.   Although GTE and PMWI shall jointly agree on the selection of
          contractors to construct the One-Way Facilities of the Project, PMWI
          shall be responsible, at its sole cost and expense, for managing,
          coordinating and overseeing the construction of the One-Way
          Facilities.

     d.   At PMWI's sole cost and expense, PMWI shall operate the Facilities,
          including, without limitation, the payment for any access connections
          including but not limited to business single party lines and for any
          long distance service necessary for polling the Facilities to ensure
          the Facilities are operational, in a good state of repair, and
          operating according to manufacturers specifications.

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     e.   At PMWI's sole cost and expense, PMWI shall utilize PMWI's national
          control center to provide monitoring and ongoing quality assurance for
          the NPCS Facilities and shall provide timely notification to GTE of
          any NPCS Facility outages.

     f.   PMWI shall, at its sole cost and expense, link by satellite the
          Facilities to PMWI's network infrastructure for network control.

     g.   For the Project, PMWI shall, at its sole cost and expense, finance the
          construction of NPCS Facilities on which PMWI would utilize PMWI's
          frequencies to provide NPCS services to PMWI's customers and to GTE as
          a reseller of PMWI's wireless services.

     h.   In conjunction with the construction of any NPCS Facilities, PMWI
          shall be financially responsible for purchasing any transmitters,
          antennae, satellite downlink, cable, and third party labor necessary
          to install the NPCS Facilities. PMWI shall additionally be responsible
          for NPCS Facility maintenance and furnishing any upgrades, whether
          software or otherwise, reasonably necessary for the operation of the
          NPCS Facilities.

9.   CONSTRUCTION SCHEDULE

     The One-Way Facilities shall be constructed on an island by island basis in
     the following order: Oahu, Maui, Kauai, and Hawaii.

10.  PAYMENT

     a.   PMWI shall pay GTE the following amounts for use of the One-Way
          Facilities:

          i.   Twenty-seven thousand dollars ($27,000) commencing on the Turn Up
               Date and continuing for 90 days or until completion of One-Way
               Facilities construction, whichever occurs first.

          ii.  Thirty-six thousand dollars ($36,000) per month commencing on
               completion of One-Way Facilities construction or 90 days after
               Turn Up Date, whichever occurs first, and continuing through
               month number one hundred twenty (120) of this Agreement.

          iii. Four hundred dollars ($400) per month for each NPCS site (the
               "NPCS Fee").

     b.   The amounts in paragraphs (i) and (ii) above are valid only if the
          One-Way Facilities contain between thirty-seven (37) and forty-three
          (43) transmitters. If the number of transmitters in the One-Way
          Facilities consist of either more or less than these quantities, the
          Parties agree to renegotiate the payment amounts.

     c.   Beginning on the date described below, PMWI shall pay GTE the NPCS Fee
          for each NPCS site constructed on property owned or leased by GTE.
          PMWI shall be responsible for payment of the NPCS Fee only from and
          after the first day of the month that is midway between January 1,
          1999 and the date GTE begins billing PMWI for the NPCS Fee. GTE will
          begin billing PMWI the NPCS Fee each month

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          in arrears when the PMWI NPCS network in Hawaii has been completed, or
          on July 1, 1999, whichever occurs first.

     d.   Payment terms shall be net thirty (30) days from receipt of invoice.

11.  OWNERSHIP OF FACILITIES AND FREQUENCIES

     a.   GTE shall have legal title to and shall be the exclusive owner of all
          One-Way Facilities whether the property constituting the One-Way
          Facilities shall be characterized as real or personal. PMWI shall have
          legal title to or the equitable right to control NPCS Facilities
          whether the property constituting the NPCS Facilities shall be
          characterized as real or personal.

     b.   Notwithstanding the foregoing;

          i.   PMWI and GTE understand and agree that the nationwide frequencies
               upon which PMWI furnishes the wireless services provided for
               herein are licensed exclusively to PMWI.

          ii.  Nothing contained herein shall permit GTE to disconnect the
               transmitters, antennae or other equipment or remove any of such
               assets from any Facility sites during the term of this Agreement
               without prior written permission from PMWI, such permission not
               to be unreasonably withheld.

12.  CONFIDENTIAL INFORMATION

     a.   To effectuate this Agreement, it may be necessary for either Party to
          disclose to the other proprietary or confidential customer, technical
          and business information in written, graphic, oral or other tangible
          or intangible forms ("Confidential Information"). In order to protect
          such Confidential Information from improper disclosure, each party
          agrees: (1) that all such Confidential Information shall be and shall
          remain the exclusive property of the source; (2) to limit access to
          such Confidential Information to authorized employees who have a need
          to know the Confidential Information in order to perform the services
          set out in this Agreement; (3) to keep such Confidential Information
          confidential and to use the same level of care to prevent disclosure
          or unauthorized use of the received Confidential Information as it
          exercises in protecting its own Confidential Information of a similar
          nature; (4) for a period of three years following any disclosure, not
          to copy or publish or disclose such Confidential Information to others
          or authorize anyone else to copy or publish or disclose such
          Confidential Information to others without the prior written approval
          of the source; (5) to return promptly any copies of such Confidential
          Information to the source at its request; and (6) to use such
          Confidential Information only for purposes of fulfilling work or
          services performed hereunder and for other purposes only upon such
          terms as may be agreed upon between the parties in writing.

     b.   These obligations shall not apply to any Confidential Information
          which was legally in the recipient's possession prior to receipt from
          the source, was received in good faith from a third party not subject
          to a confidential obligation to the source, now is or later becomes
          publicly known through no breach of confidential obligation by the

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          recipient, was developed by the recipient without the developing
          person(s) having access to any of the Confidential Information
          received in confidence from the source, or which is required to be
          disclosed pursuant to subpoena or other process issued by a court or
          administrative agency having appropriate jurisdiction. If a receiving
          party receives a request to disclose any Confidential Information
          (whether pursuant to a valid and effective subpoena, an order issued
          by a court or other governmental authority of competent jurisdiction
          or otherwise) on advice of legal counsel that disclosure is required
          under applicable law, such party agrees that, prior to disclosing any
          Confidential Information, it shall (i) notify the disclosing party of
          the existence and terms of such request or advice, (ii) cooperate with
          the disclosing party in taking legally available steps to resist or
          narrow any such request or to otherwise eliminate the need for such
          disclosure, if requested to do so by the disclosing party, and (iii)
          if disclosure is required, use its best efforts to obtain a protective
          order or other reliable assurance that confidential treatment will be
          afforded to such portion of the Confidential Information as is
          required to be disclosed. The disclosing party shall reimburse the
          other party for its reasonable expenses, including attorney fees, in
          exerting best efforts in complying with b (ii) and b (iii).

     c.   The obligation of confidentiality and use with respect to Confidential
          Information disclosed by one party to the other shall survive any
          termination of this Agreement for a period of three years from the
          date of the initial disclosure of the Confidential Information.

13.  DISPUTE RESOLUTION

     a.   The Parties desire to resolve disputes arising out of this Agreement
          without litigation. Accordingly, except for action seeking a temporary
          restraining order or injunction related to the purposes of this
          Agreement, or suit to compel compliance with this dispute resolution
          process, the Parties agree to use the following alternative dispute
          resolution procedure as their sole remedy with respect to any
          controversy or claim arising out of or relating to this Agreement or
          its breach.

     b.   At the written request of a Party, each Party will appoint a
          knowledgeable, responsible representative to meet and negotiate in
          good faith to resolve any dispute arising under this Agreement. The
          Parties intend that these negotiations be conducted by nonlawyer,
          business representatives. The location, format, frequency, duration
          and conclusion of these discussions shall be left to the discretion of
          the representatives. Upon agreement, the representatives may utilize
          other alternative dispute resolution procedures such as mediation to
          assist in the negotiations. Discussions and correspondence among the
          representatives for purposes of these negotiations shall be treated as
          confidential information developed for purposes of settlement, exempt
          from discovery and production, which shall not be admissible in the
          arbitration described below or in any lawsuit without the concurrence
          of all Parties. Documents identified in or provided with such
          communications, which are not prepared for purposes of the
          negotiations, are not so exempted and may, if otherwise admissible, be
          admitted in evidence in the arbitration or lawsuit.

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     c.   If the negotiations do not resolve the dispute within sixty (60) days
          of the initial written request, the dispute shall be submitted to
          binding arbitration by a single arbitrator pursuant to the Commercial
          Arbitration Rules of the American Arbitration Association. A Party may
          demand such arbitration in accordance with the procedures set out in
          those rules. Discovery shall be controlled by the arbitrator and shall
          be permitted to the extent set out in this Section. Each Party may
          submit in writing to a Party, and that Party shall so respond, to a
          maximum of any combination of thirty-five (35) (none of which may have
          subparts) of the following: interrogatories, demands to produce
          documents, and requests for admission. Each Party is also entitled to
          take the oral deposition of one individual of another Party.
          Additional discovery may be permitted upon mutual agreement of the
          parties. The arbitration hearing shall be commenced within sixty (60)
          days of the demand for arbitration. The arbitration shall be held in
          the city where this Agreement was executed by GTE. The arbitrator
          shall control the scheduling so as to process the matter
          expeditiously. The Parties may submit written briefs. The arbitrator
          shall rule on the dispute by issuing a written opinion within thirty
          (30) days after the close of hearings. The times specified in this
          Section may be extended upon mutual agreement of the Parties or by the
          arbitrator upon a showing of good cause. Judgment upon the award
          rendered by the arbitrator may be entered in any court having
          jurisdiction.

     d.   Each Party shall bear its own costs of these procedures. A Party
          seeking discovery shall reimburse the responding Party the costs of
          production of documents (to include search time and reproduction
          costs). The Parties shall equally split the fees of the arbitration
          and the arbitrator.

14.  GENERAL PROVISIONS

     a.   Further Assurances. From and after the effective date of this
          Agreement, the Parties each agree to execute and deliver such further
          documents and instruments and to do such further acts and things as
          the other may reasonably request in order to effectuate the
          transactions contemplated by this Agreement. The Parties shall
          cooperate and assist one another in the performance of the provisions
          of this Agreement, and shall take such steps as are reasonably
          necessary to allow the other Party to discharge the obligations
          imposed by this Agreement.

     b.   Excusable Delays. Neither Party shall be liable for any delay or
          failure in its performance of any of the acts required by this
          Agreement when such delay or failure arises beyond the reasonable
          control of such Party. Such causes may include, without limitation,
          acts of God or public enemies, labor disputes, material or component
          shortages, supplier failures, embargoes, rationing, acts of local,
          state or national governments or public agencies (not solicited,
          encouraged or invited by any Party), utility or communication failures
          or delays, fires, floods, epidemics, riots and strikes. The time for
          performance of any act delayed by such cause shall be postponed for a
          period equal to the delay; provided, however, that the Party so
          affected shall give prompt notice to the other Party of such delay.
          The Party so affected, however, shall use its best efforts to avoid or
          remove such causes of nonperformance to complete performance of the
          act delayed, whenever such causes are removed.

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     c.   Assignment. Neither this Agreement nor any of the rights hereunder may
          be assigned or otherwise transferred by any Party, by operation of law
          or otherwise, without the prior written consent of the other Party,
          except that the Parties may, without obtaining such consent, assign
          their respective obligations and rights hereunder to their parent, or
          any other subsidiary of a parent, eighty percent (80%) or more of the
          voting stock of which is owned by the parent. In any case of
          assignment, however, the assignee shall assume all obligations of the
          assigning Party hereunder and the other Party shall have received
          documents satisfactory in form and substance to it evidencing such
          assumption. Any such assignment shall not relieve any Party to this
          Agreement of its obligations hereunder, and any such assignee may,
          upon the terms and conditions, reassign its rights hereunder to such
          original Party or to any assignee of such original Party permitted
          hereunder.

     d.   Successors in Interest. All provisions of this Agreement shall be
          binding upon, inure to the benefit of, and be enforceable by and
          against the respective successors and assigns of the Parties or
          purchasers of substantially all of the assets of a Party.

     e.   Independent Contractor Relationship. The persons provided by each
          Party shall be solely that Party's employees or agents and shall be
          under the sole and exclusive direction and control of that Party. They
          shall not be considered employees of the other Party for any purpose.
          Each Party shall remain an independent contractor with respect to the
          other and shall be responsible for compliance with all laws, rules and
          regulations involving, but not limited to, employment of labor, hours
          of labor, health and safety, working conditions and payment of wages.
          Each Party shall also be responsible for payment of taxes, including
          federal, state and municipal taxes, chargeable or assessed with
          respect to its employees, such as, Social Security, unemployment,
          Workers' Compensation, disability insurance, and federal and state
          withholding. Each Party shall indemnify the other for any loss,
          damage, liability, claim, demand or penalty that may be sustained by
          reason of its failure to comply with this provision.

     f.   Publicity. Any news release, public announcement, advertising or any
          form of publicity pertaining to this Agreement, provision of services
          pursuant to it, or association of the Parties with respect to the
          subject of this Agreement shall be subject to prior written approval
          of both parties.

     g.   Trademarks and Trade Names. Except as specifically set out in this
          Agreement, nothing in this Agreement shall grant, suggest or imply any
          authority for one Party to use the name, trademarks, service marks or
          trade names of the other for any purpose whatsoever.

     h.   Records. Each Party shall keep true and accurate records directly
          relating to this Agreement in accordance with generally accepted
          accounting practices. Such records shall be retained for a period of
          three (3) years from the Termination Date.

     i.   Attorney's Fees. Except as set forth in Section 13, in the event any
          Party to this Agreement shall be required to initiate legal
          proceedings (i) to interpret or to enforce performance of any term or
          condition of this Agreement; (ii) to enjoin any action prohibited
          hereunder; or (iii) to gain any other form of relief whatsoever, the
          prevailing Party shall be entitled to get such sums from the other
          Party, in addition

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          to any other damages or compensation received, as well as
          reimbursement from the other Party for reasonable attorneys' fees and
          court costs incurred on account thereof notwithstanding the nature of
          the claim or cause of action asserted by the prevailing Party.

     j.   Indemnification. Notwithstanding anything to the contrary herein, each
          Party shall indemnify and save harmless the other from any loss or
          damages (including reasonable attorney's fees) incurred by the other
          because of claims, suits, or demands based on personal injury or death
          or damage to property, including, without limitation, all Facilities,
          or third party claims, suits or demands of any kind, to the extent
          such loss or damage is caused by or results from the negligent or
          willful acts or omissions of the other or its employees or agents. The
          indemnifying Party shall receive the full opportunity and authority to
          assume the sole defense of and settlement of such suits. The
          indemnified Party agrees to furnish to the indemnifying Party upon
          request all information and reasonable assistance available to the
          indemnified party for defense against any such suit, claim, or demand.

     k.   Insurance. GTE and PMWI each agree to maintain during the term hereof
          all insurance and/or bonds required by law or this Agreement,
          including, but not limited to (1) Workers' Compensation and related
          insurance as prescribed by applicable law; (2) employer's liability
          insurance with limits of at least $500,000 for each occurrence; and
          (3) comprehensive general liability insurance including products
          liability, and, if the use of motor vehicles is required,
          comprehensive motor vehicle liability insurance, each with limits of
          at least $2,000,000 for combined single limit for bodily injury,
          including death, and/or property damage. GTE and PMWI each shall cause
          the other to be included as an Additional Insured under their
          respective policies and GTE's and PMWI's appropriate coverage under
          such policies shall be primary. GTE and PMWI each shall furnish
          certificates or evidence of the foregoing insurance indicating the
          amount and nature of such coverage, the expiration date of each
          policy, and stating that no material change or cancellation of any
          such policy shall be effective unless thirty (30) days advance
          written notice is given to the Party named as an Additional Insured.
          Notwithstanding the above, GTE and PMWI shall each have the option,
          where permitted by law, to self-insure any or all of the foregoing
          risks.

     l.   Assuring Performance of Responsibilities. Notwithstanding anything
          stated or implied to the contrary elsewhere in this Agreement, GTE
          may, as permissible under FCC rules and regulations, at its option and
          without prejudice to other rights, take over and complete all or part
          of PMWI's responsibilities with respect to the One-Way Facilities if
          PMWI has defaulted, which default is not substantially cured within
          thirty (30) days of receiving written notice of the default, or PMWI
          has not furnished GTE with adequate assurance that PMWI is prepared to
          perform its obligations in a timely fashion and/or as required by this
          Agreement. PMWI shall be liable to GTE for any costs incurred by GTE
          in discharging PMWI's responsibilities. If, in GTE's reasonable
          opinion, a hazardous condition exists at any Facility, GTE may without
          notice to PMWI take such immediate action as is necessary to protect
          persons, the Facilities or the property of third parties from damage
          or interference caused by the hazard.

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<PAGE>   13

     m.   Rights and Remedies. The rights and remedies provided each of the
          Parties herein shall be cumulative and in addition to any other rights
          and remedies provided by law or otherwise. Any failure in the exercise
          by any Party of its rights to enforce any provision of this Agreement
          for any default or violation by another Party shall not prejudice such
          Party's right of enforcement for any further or other default or
          violation.

     n.   Limitation of Liability. It is expressly understood that neither Party
          makes any warranty to the other with respect to the performance or
          fitness for any purpose of the products or services contemplated by
          this Agreement. Each Party's liability to the other for any loss,
          cost, claim, injury, liability or expense, including reasonable
          attorney's fees, relating to or arising out of any negligent act or
          omission in its performance of obligations arising out of this
          Agreement, shall be limited to the amount of direct damage actually
          incurred. Absent gross negligence or knowing and willful misconduct
          which causes a loss, neither Party shall be liable to the other for
          any indirect, special or consequential damage of any kind whatsoever.
          For purposes of this clause, payments and related expenses for third
          party claims, suits or demands for which indemnity is owed shall be
          considered direct damages.

     o.   Limitation of Actions. No action, regardless of form, arising out of
          the subject matter of this Agreement may be brought by either Party
          more than two (2) years after the cause of action has accrued. The
          Parties waive the right to invoke any different limitation on the
          bringing of actions provided under state law.

     p.   Notices. All notices and other communications required or permitted to
          be given under this Agreement shall be in writing and shall be
          effective when delivered personally, or if by telex or TWX, when
          confirmed (which confirmation may be by reply telex or signal
          indicating that the message has been clearly received) or if mailed,
          five (5) days after mailing, postage prepaid and addressed to the
          Parties at their respective addresses set forth below, unless by such
          notice a different person, address or number shall have been
          designated for giving notice hereunder:

          If to GTE:         GTE Communication Systems Corporation
                             700 Hidden Ridge
                             Irving, Texas 75038
                             Attn: Manager-Contract Management
                             Mail Code: HQW03N56

          If to PMWI:        PageMart Wireless, Inc.
                             3333 Lee Parkway
                             Suite 100
                             Dallas, Texas 75219
                             Attn: Vice President Carrier Services Division

     q.   Waiver. The waiver by a Party of the performance of any covenant,
          condition, obligation, representation, warranty or promise in this
          Agreement shall not invalidate this Agreement or be deemed a waiver by
          such Party of any other covenant, condition, obligation,
          representation, warranty or promise. The waiver of a Party of the time
          for performing any act or condition hereunder does not constitute a
          waiver of the act or condition itself.

                                       11

<PAGE>   14
     r.   Construction. None of the provisions of this Agreement shall be for
          the benefit of or enforceable by any third party. No third party,
          including any creditor of either Party, shall have any rights against
          the Parties or any of their subsidiaries, successors or assigns by
          reason of or under this Agreement.

     s.   Severability. In the event that any one or more provision(s) contained
          in this Agreement should for any reason be held to be unenforceable in
          any respect, such unenforceability shall not affect any other
          provision of this Agreement, and this Agreement shall be construed as
          if such unenforceable provision(s) had not been contained herein.

     t.   Survival of Obligations. The respective obligations of the Parties
          under this Agreement which by their nature would continue beyond the
          termination, cancellation or expiration hereof, shall survive
          termination, cancellation or expiration hereof.

     u.   Headings. The captions of Articles and Sections of this Agreement are
          inserted only as a matter of convenience and in no way define, limit,
          extend or describe the scope of this Agreement or the intent of any
          provision hereof.

     v.   Compliance with Laws and Regulations. The Parties shall comply with
          all foreign, federal, state and local laws and regulations applicable
          to their performance as described in this Agreement.

     w.   Applicable Law. This Agreement is made and executed in the state of
          Texas and the laws and decisions of Texas, without reference to
          provisions covering conflicts of laws, shall control the construction,
          interpretation, validity and enforcement of this Agreement.

     x.   Amendments, Modifications and Supplements. Amendments, modifications
          and supplements to this Agreement are allowed and will be binding on
          the Parties after the effective date, provided such amendments,
          modifications and supplements (1) are in writing, signed by an
          authorized representative of both parties, and (2) by reference
          incorporate this Agreement and identify the specific Sections or
          clauses contained herein which are amended, modified or supplemented
          or indicate that the material is new. The term, "this Agreement" shall
          be deemed to include any future amendments, modifications and
          supplements.

     y.   Entire Agreement. This Agreement, including all Exhibits attached
          hereto, supersede all prior and contemporaneous agreements not
          required or contemplated hereby. This Agreement may not be modified
          except by a writing signed by authorized representatives of the
          Parties.

     z.   Counterparts. This Agreement may be executed in one or more
          counterparts, simultaneously or separately, and each counterpart shall
          be deemed to be an original for all purposes. If the counterparts are
          separately executed, this Agreement shall be deemed executed when each
          Party has signed a copy. Thereafter, the Parties shall exchange signed
          copies of this Agreement for their respective files.

                                       12
<PAGE>   15

15.  MAINTENANCE AND REPAIRS AT GTE OWNED SITES

     All maintenance and repairs are covered in a separate Agreement between the
     parties.

                                       13
<PAGE>   16

16.      SIGNATURES

IN WITNESS WHEREOF, the Parties have executed this Agreement on the date or
dates indicated below to be effective when executed by both.

PAGEMART WIRELESS, INC.                    GTE COMMUNICATION SYSTEMS
                                           CORPORATION

By: /s/ W. WAYNE STARGARDT                 By: /s/ GALE L. MARVIN
   ------------------------------------       --------------------------------
Name: W. Wayne Stargardt                   Name: Gale L. Marvin
     ----------------------------------         ------------------------------
Title: Vice President, Carrier Services    Title: Senior Contract Manager
     ----------------------------------         ------------------------------
Date: April 5, 1999                        Date:  April 22, 1999
     ----------------------------------         ------------------------------

                                                                         [STAMP]

                                       14
<PAGE>   17

                                    EXHIBIT A

                             GTE AFFILIATED ENTITIES

GENERAL ADMINISTRATION
GTE Corporation
     GTE Finance Corporation
     GTE Investment Management Corporation
     GTE Realty Corporation
         GTE Realty Corporation of Connecticut
         GTER Incorporated
         GTE-TCCA, Inc.
     GTE REinsurance Company Limited (Vermont)
          GTE Life Insurance Company Limited (Bermuda)
     GTE REinsurance Management Limited (Bermuda)
     GTE Service Corporation
     GTE Shareholder Services Incorporated
     GTE VisNet Incorporated

GOVERNMENT SYSTEMS
Contel Federal Systems, Inc.
     GTE Government Systems Corporation
          GTE CyberTrust Solutions Incorporated
          GTE Federal Services Corporation
          GTE Government Systems Overseas Corporation
          GTE Overseas Systems and Services Corporation
          Telecom Systems Incorporated
          Contel Page International Holdings, Inc.
               Contel Page International, Inc.
          Page Europa, S.p.A.
               MTX Italia

     GTE Telecom Incorporated
     GTE Telecom International Incorporated
     GTE Telecom International Systems Corporation
          GTE Telecom Saudi Arabia LTD

INFORMATION SERVICES
GTE Information Services Incorporated
     General Telephone Directory Company C. por A.
     GTE Communications Corporation
     GTE Data Services GmbH
     GTE Directories (Belgium) Limited
     GTE Directories (B) SDN.BHD (Brunei)
     GTE Directories Corporation
         Associated Directory Services-WC, Company
         GTE Directories Distribution Corporation
         GTE Directories Sales Corporation
               GTEX Corporation
     GTE Directories (HK) Limited (Hong Kong)
     GTE Directorios - Republica Dominicana, C. por A.
     GTE Government Information Services Incorporated
     GTE Information Services (UK) Limited (England)
         U S West Polska Sp. Z o.o.
     GTE New Media Services Incorporated
     GTE Telecommunications Services Incorporated
     GTE Yellow Pages Publishing Hungary Kft

INTERNETWORKING OPERATIONS
GTE Internetworking Incorporated
GTE Intelligent Network Services Incorporated
BBN Corporation
     BBN International Corporation
     BBN International Sales Corporation
     BBN Securities Corporation
     BBN U.K. Limited
     Bolt Beranek and Newman Corporation
     Realtech Corporation

TELEPHONE OPERATING COMPANIES
GTE Alaska Incorporated
GTE Arkansas Incorporated
GTE California Incorporated
     Contel Advanced Systems, Inc.
GTE Florida Incorporated
     GTE Florida Business Connections Corporation
     GTE Funding Incorporated
GTE Hawaiian Telephone Company Incorporated
     GTE Hawaiian Tel Insurance Company Incorporated
     GTE Hawaiian Tel International Incorporated
     The Micronesian Telecommunications Corporation
          GTE Pacifica Incorporated
GTE Midwest Incorporated
GTE North Incorporated
GTE Northwest Incorporated
     GTE West Coast Incorporated
GTE South Incorporated
GTE Southwest Incorporated
Contel of Minnesota, Inc. d/b/a GTE Minnesota
Contel of the South, Inc. d/b/a GTE Systems of the South
Contel Service Corporation

GTE Anglo Holding Company Incorporated
     La Compagnie de Telephone Anglo-Canadienne/Anglo-
     Canadian Telephone Company
         BC TELECOM Inc.
              Aerotech Specialities Ltd.
              BC TEL
                   Canadian Telephones and Supplies Ltd.
                   ISM Information Systems Management
                   (B.C.) Corporation
              BC TEL Mobility Cellular Inc.
              BC TEL Mobile Ltd.
              BC TEL Properties Inc.
              BC TEL Risk Management Inc.
              BC TEL Systems Support Inc.
              Microtel International Inc.
              SRI Strategic Resources Inc.

         Telecom Leasing Canada (TLC) Limited

         Quebec-Telephone
              QuebecTel Communications Inc.
              QuebecTel Mobilite Inc.
              Quebec Tel International Inc.

GTE Customer Networks, Inc.

GTE Data Services Incorporated
     GTE Data Services International Incorporated

                                      A-1

<PAGE>   18

                                    EXHIBIT A

                             GTE AFFILIATED ENTITIES

GTE Holdings (Canada) Limited
     Compania Dominicana de Telefonos, C. por A.
     (Codetel)
          Quality Telecommunications, C. por A.

GTE International Telephone Incorporated
     Informatica y Telecommunicaciones, C. por A.
     (Dominican Republic)

GTE International Telecommunications Incorporated
     GTE do Brasil Limitada
     GTE Mexico, L.L.C.
     GTE PCS International Incorporated
     GTE Venezuela Incorporated
         VenWorld Telecom, C.A. (Venezuela)
              Compania Anonima Nacional Telefonos de Venezuela (CANTV)
     Prontocel S.A. (Brazil)

GTE Investments Incorporated

GTE London Limited (England)

GTE Main Street Incorporated

GTE Media Ventures Incorporated

ContelVision, Inc.

GTE Enterprise Initiatives Incorporated

GTE Vantage Incorporated

WIRELESS PRODUCTS AND SERVICES
GTE Airfone Incorporated
         GTE Airfone of Canada Incorporated
         GTE Railfone Incorporated
         Mexfone, S.A. de C.V.

GTE Wireless Incorporated
     GTE Mobile Communications Service Corporation
     GTE Mobile Communications International
     Incorporated
     GTE Mobilnet of Asheville Incorporated
     GTE Mobilnet of Danville Incorporated
     GTE Mobilnet of Eastern North Carolina Incorporated
          GTE Mobilnet of Jacksonville Incorporated
               GTE Mobilnet of Jacksonville II Incorporated
          GTE Mobilnet of Wilmington Incorporated
               GTE Mobilnet of Wilmington II Incorporated
     GTE Mobilnet of Fayetteville Incorporated
     GTE Mobilnet of Florence, South Carolina Incorporated
     GTE Mobilnet of North Carolina Incorporated
     GTE Mobilnet of Raleigh Incorporated
     GTE Mobilnet of South Carolina Incorporated
     GTE Mobilnet of the Southeast Incorporated

     GTE Cellular Communications Corporation

     GTE Mobilnet of Cleveland Incorporated
     GTE Mobilnet Sales Corp.
     GTE Mobilnet Service Corp.
         GTE Mobilnet of Austin Incorporated
         GTE Wireless of Houston Incorporated
     GTE Wireless of the Midwest Incorporated
     GTE Wireless of the Pacific Incorporated
         GTE Mobilnet of Clatsop Incorporated

     Contel Cellular International, Inc.
     GTE Mobilnet Holding Incorporated
         GTE Mobilnet of Alabama Incorporated
              GTE Mobilnet of Florence, Alabama Incorporated
         GTE Mobilnet of Chattanooga Incorporated
         GTE Mobilnet of Chattanooga II Incorporated
         GTE Mobilnet of Clarksville Incorporated
         GTE Mobilnet of Gadsden Incorporated
         GTE Mobilnet of Knoxville Incorporated
         GTE Mobilnet of Memphis Incorporated
         GTE Mobilnet of Memphis II Incorporated
         GTE Mobilnet of Nashville Incorporated
         GTE Mobilnet of Tennessee Incorporated
     GTE Mobilnet of Central California Incorporated
         Pinnacles Cellular Inc.
     GTE Mobilnet of Huntsville Incorporated
     GTE Mobilnet of Illinois Funding Incorporated
     GTE Mobilnet of San Diego Incorporated
     GTE Mobilnet of the Southwest Incorporated
     GTE Wireless of the South Incorporated

OTHER OPERATIONS
GTE China Incorporated
     GTE International Telecommunications Services LLC
         GITS Branch LLC
         GTE Holdings Mexico, S. de R.L. de C.V.
              GTE Data Services-Mexico, S.A. de C.V.
              GTEDS Services-Mexico, S.A. de C.V.
         GTE Supply-Mexico, S.A. de C.V.

GTE Communications Services Incorporated

GTE Leasing Corporation
     GTE Leasing Acceptance Corporation
     Kalama Grain Terminal, Inc.
GTE Products of Connecticut Corporation

     GTE Communication Systems Corporation (GTE Supply)

     GTE International Incorporated
         GTE Far East (Services) Limited
         GTE Overseas Corporation

     GTE Laboratories Incorporated

     GTE Operations Support Incorporated
         GTE Operations do Brasil Comercial Ltda.
         West Indies Telephone Company

                                      A-2

<PAGE>   19
                                    EXHIBIT A

                             GTE AFFILIATED ENTITIES

     Televac, Inc.

GTE Transfer Corporation

                                      A-3<PAGE>   1
                                                                   EXHIBIT 10.27

                               RETENTION AGREEMENT

         This RETENTION AGREEMENT ("Agreement"), effective as of January 3,
2000, by and between WebLink Wireless, Inc., a Delaware corporation (the
"Company"), and John D. Beletic (the "Executive"), evidences that;

         WHEREAS, the Executive is the Chairman and Chief Executive Officer of
the Company and has made and/or is expected to make or continue to make
significant contributions to the profitability, growth and financial strength of
the Company;

         WHEREAS, the Company considers it essential to the best interests of
its stockholders to foster the continuous employment of key management personnel
of the Company;

         WHEREAS, in order to induce Executive to remain in the employ of the
Company, the Company will make certain payments to Executive in the event
Executive's employment with the Company is terminated under certain
circumstances described below;

         WHEREAS, the Company and the Executive desire to establish certain
employment and compensation rights and obligations with respect to the
Executive; and

         WHEREAS, the Executive is willing to continue to render services to the
Company in consideration of the terms and subject to the conditions set forth in
this Agreement;

         NOW, THEREFORE, the Company and the Executive agree as follows:

         1.       Operation of Agreement.

                  (a)      For purposes of this Agreement, a "Change in Control"
                           will be deemed to have occurred if at any time during
                           the Term (as hereinafter defined) any of the
                           following events shall occur:

                           (i)      The Company is merged, consolidated,
                                    converted or reorganized into or with
                                    another corporation or other legal entity,
                                    and as a result of such merger,
                                    consolidation, conversion or reorganization
                                    less than a majority of the combined voting
                                    power of the then outstanding securities of
                                    the Company or such corporation or other
                                    legal entity are

                                       -1-
<PAGE>   2

                                    held, immediately after such transaction, in
                                    the aggregate, by the holders of Voting
                                    Stock (as hereinafter defined) of the
                                    Company immediately prior to such
                                    transaction and/or such voting power is not
                                    held by substantially all of such holders in
                                    substantially the same proportions relative
                                    to each other;

                           (ii)     The Company sells (directly or indirectly)
                                    all or substantially all of its assets
                                    (including, without limitation, by means of
                                    the sale of the capital stock or assets of
                                    one or more direct or indirect subsidiaries
                                    of the Company) to any other corporation or
                                    other legal entity (other than a directly or
                                    indirectly majority-owned subsidiary of the
                                    Company), of which less than a majority of
                                    the combined voting power of the then
                                    outstanding voting securities (entitled to
                                    vote generally in the election of directors
                                    or persons performing similar functions on
                                    behalf of such other corporation or legal
                                    entity) of such other corporation or legal
                                    entity is held in the aggregate by the
                                    holders of Voting Stock of the Company
                                    immediately prior to such sale and/or such
                                    voting power is not held by substantially
                                    all of such holders in substantially the
                                    same proportions relative to each other;

                           (iii)    Any person (as the term "person" is used in
                                    Section 13(d)(3) or Section 14(d)(2) of the
                                    Securities Exchange Act of 1934, as amended
                                    (the "Exchange Act")) becomes (subsequent to
                                    the date hereof) the beneficial owner (as
                                    the term "beneficial owner" is defined under
                                    Rule 13d-3 or any successor rule or
                                    regulation promulgated under the Exchange
                                    Act) of securities representing fifty
                                    percent (50%) or more of the combined voting
                                    power of the outstanding securities entitled
                                    to vote generally in the election of
                                    directors of the Company ("Voting Stock");
                                    provided, however, purposes of this Section
                                    1(a)(iii), the term "person" will not be
                                    deemed to include any "person" who, as of
                                    the date hereof, owns forty-five percent
                                    (45%) or more of the Voting Stock of the
                                    Company; or

                           (iv)     The stockholders of the Company approve a
                                    plan contemplating the liquidation or
                                    dissolution of the Company.

                  (b)      The period during which this Agreement shall be in
                           effect (the "Term") shall commence as of the date
                           hereof and shall expire as of the close

                                      -2-
<PAGE>   3

                           of business on January 3, 2001, provided, however,
                           unless either the Executive or the Company gives
                           written notice of intent to terminate this Agreement
                           upon the expiration of the first year of this
                           Agreement or any subsequent renewal period, this
                           Agreement will automatically be renewed, upon each
                           anniversary of the date hereof, for successive one
                           year periods ("renewal periods"). Any such notice of
                           termination must be given not less than thirty (30)
                           days prior to the end of the first year of this
                           Agreement or any subsequent renewal period.
                           Notwithstanding the foregoing, the Executive may
                           elect not to renew this Agreement at any time within
                           the fifteen (15) day period immediately following
                           receipt by the Executive of a Compensation Resolution
                           (as hereinafter defined), regardless of whether such
                           Compensation Resolution is delivered before or after
                           any anniversary date of this Agreement. An election
                           not to renew this Agreement will not affect any
                           rights which have vested or otherwise accrued prior
                           to the expiration of this Agreement. The expiration
                           of the Term of this Agreement will not be deemed to
                           be a "termination" of this Agreement for the purposes
                           of Sections 4 and 5.

         2.       Employment. Subject to the terms and conditions of this
Agreement, the Company shall continue the Executive in its employ and the
Executive shall remain in the employ of the Company for the Term, in the
position and with substantially the same duties and responsibilities that the
Executive has as of the date hereof or in the position and with the duties and
responsibilities that the Company and the Executive may hereafter mutually agree
in writing. Throughout the Term, the Executive shall devote substantially all of
the Executive's time during normal business hours (subject to vacations, sick
leave and other absences in accordance with the policies of the Company as in
effect for senior executives as of the date hereof or as otherwise approved by
the Board of Directors of the Company (the "Board")) to the business and affairs
of the Company and shall attempt to maximize stockholder value, but nothing in
this Agreement shall preclude the Executive from devoting reasonable periods of
time during normal business hours to (i) serving as a director, trustee or
member of or participant in any organization or business so long as such
activity does not materially interfere with the performance of the Executive's
obligations pursuant to this Agreement, (ii) engaging in charitable and
community activities, or (iii) managing the Executive's personal investments.

         3.       Compensation During Term. During the Term, the Executive shall
receive an annual base salary (which base salary is herein referred to as "Base
Pay") and shall have the opportunity to earn an annual bonus (the "Annual
Bonus") and may have the opportunity to earn a special bonus (the "Special
Bonus") in each case, in such amounts,

                                      -3-
<PAGE>   4

at such rates, at such times and subject to such conditions as may be determined
annually by the Board pursuant to a formal resolution adopted by the Board
(hereinafter referred to as the "Compensation Resolution"). After delivery of a
copy of the Compensation Resolution (certified by the Secretary of the Company)
to the Executive, the amount, terms and conditions of the Base Pay, Annual Bonus
and Special Bonus (if any) to be earned by and paid to the Executive for the
fiscal year to which the Compensation Resolution relates, may not be amended in
a manner adverse to the Executive without the written consent of the Executive.
The Executive acknowledges the receipt of the Compensation Resolution relating
to the 2000 fiscal year of the Company. The Company will deliver to the
Executive subsequent Compensation Resolutions relating to subsequent fiscal
years of the Company, in a manner consistent with the Company's past
compensation practices. Unless otherwise provided in the applicable Compensation
Resolution, the Executive's Base Pay shall be payable in accordance with the
Company's generally applicable payroll policies and this Agreement. Unless
otherwise provided in the applicable Compensation Resolution, the Executive's
Annual Bonus shall be paid in accordance with the Company's past compensation
practices and this Agreement. Any Special Bonus payable to the Executive shall
be paid in accordance with the terms of the applicable Compensation Resolution
and this Agreement. The Annual Bonus and the Special Bonus are hereinafter
collectively referred to as "Incentive Pay." If this Agreement is "renewed" for
one or more renewal periods (pursuant to Section 2) the Executive's Base Pay for
such renewal period will not be less than the Base Pay payable to the Executive
pursuant to the Compensation Resolution applicable to the immediately preceding
annual period and the target bonus amount with respect to any such renewal
period will be not less than one hundred percent (100%) of the Base Pay payable
with respect to such renewal period.

         4.       Termination.

                  (a)      This Agreement may be terminated by the Company
                           during the Term upon the occurrence of one or more of
                           the following events:

                           (i)      If the Executive is unable to perform the
                                    essential functions of the Executive's
                                    position(s) (with or without reasonable
                                    accommodation) because the Executive has
                                    become Disabled (as hereinafter defined),
                                    and actually begins to receive disability
                                    benefits pursuant to, a long-term disability
                                    plan maintained by or on behalf of the
                                    Company for its employees generally; or

                                      -4-
<PAGE>   5

                           (ii)     For "Cause," which for purposes of this
                                    Agreement shall mean:

                                    (A)      the Executive shall have committed
                                             an intentional act of fraud,
                                             embezzlement or a material theft in
                                             connection with the Executive's
                                             duties or in the course of the
                                             Executive's employment with the
                                             Company;

                                    (B)      the Executive shall have been
                                             convicted of felony and the
                                             continuation of the employment of
                                             the Executive with the Company
                                             following such conviction will have
                                             a materially adverse affect upon
                                             the reputation and/or prospects of
                                             the Company;

                                    (C)      the Executive shall have breached
                                             any material duty of loyalty to the
                                             Company; provided the actions of
                                             the Executive were not approved by
                                             the Board following full disclosure
                                             of the Executive's interest;

                                    (D)      the Executive shall have materially
                                             breached the obligations of the
                                             Executive pursuant to the second
                                             sentence of Section 2;

                                    (E)      the Executive shall have committed
                                             intentional wrongful damage to
                                             property of the Company (which is
                                             materially harmful to the Company);
                                             or

                                    (F)      the Executive shall have committed
                                             intentional wrongful disclosure of
                                             secret processes or confidential
                                             information of the Company (which
                                             is materially harmful to the
                                             Company).

Notwithstanding the foregoing, the Company's right to terminate this Agreement
with respect to any action of the Executive described in Section 4(a)(ii) will
be deemed to have been irrevocably waived by the Company, if the Company does
not terminate this Agreement within sixty (60) days following the Board first
being made aware of such action of the Executive. For purposes of this
Agreement, no act, or failure to act, on the part of the Executive shall be
deemed "intentional" if it was due primarily to an error in judgment or
negligence, but shall be deemed "intentional" only if done, or omitted to be
done, by the Executive not in good faith and without reasonable belief that the
Executive's action or omission was in the best interest of the Company.
Notwithstanding the foregoing, this Agreement shall not be deemed to have been
terminated for "Cause" hereunder unless and until there shall have been
delivered to the Executive a copy of a resolution duly

                                      -5-
<PAGE>   6

adopted by the affirmative vote of not less than a majority of the Board then in
office at a meeting of the Board called and held for such purpose (after
reasonable notice to the Executive and an opportunity for the Executive,
together with the Executive's counsel, to be heard before the Board), finding
that, in the good faith opinion of the Board, the Executive has committed an act
set forth above in this Section 4(a)(ii) and specifying the particulars thereof
in detail. Nothing herein shall limit the right of the Executive or the
Executive's beneficiaries to contest the validity or propriety of any such
determination. In addition, to the extent that any action of the Executive
relied upon by the Company to terminate this Agreement pursuant to Section
4(a)(ii) is susceptible of being cured, the Company must provide the Executive
with written notice of its intent to terminate this Agreement (such notice to
identify with specificity the action upon which the Company intends to rely to
terminate this Agreement) and the right of the Company to terminate this
Agreement based upon such action shall be suspended for a period of thirty (30)
days to allow the Executive to cure such action. If the Executive is successful
in curing such action within such thirty (30) day period, such action may not
thereafter be relied upon by the Company as a basis for terminating this
Agreement. As used herein, the term "Disabled" will be deemed to mean the
inability of the Executive, as determined reasonably by the Board, by reason of
any medically determinable physical or mental impairment to engage in the
performance of the material duties of the Executive referenced in Section 2 for
a period which has lasted or can reasonably be expected to last without material
interruption for not less than twelve (12) months.

                  (b)      The Executive shall be entitled to severance benefits
                           as follows:

                           (i)      The Executive will be entitled to benefits
                                    as provided in Section 5 hereof upon any
                                    termination by the Company of this Agreement
                                    for any reason other than (x) for Cause, (y)
                                    as a result of the death of the Executive or
                                    (z) by reason of the Executive becoming
                                    Disabled and the actual receipt by the
                                    Executive of disability benefits in
                                    accordance with Section 4(a)(i) hereof;

                                      -6-
<PAGE>   7

                           (ii)     The Executive will be entitled to benefits
                                    as provided in Section 5 hereof upon
                                    termination by the Executive of this
                                    Agreement during the Term upon the
                                    occurrence of any of the following events:

                                    (A)      Failure to elect or reelect the
                                             Executive to the office(s) of the
                                             Company which the Executive holds
                                             as of the date hereof, or failure
                                             to elect or reelect the Executive
                                             as a director of the Company or the
                                             removal of the Executive as a
                                             director of the Company (or any
                                             successor thereto);

                                    (B)      A significant adverse change
                                             imposed by the Board in the nature
                                             or scope of the authorities,
                                             powers, functions, responsibilities
                                             or duties attached to the
                                             position(s) with the Company which
                                             the Executive held immediately
                                             prior to the date hereof,

                                    (C)      The Company shall require that the
                                             principal place of work of the
                                             Executive be changed to any
                                             location which is in excess of 25
                                             miles from the location thereof
                                             immediately prior to the date
                                             hereof or to travel away from the
                                             Executive's office in the course of
                                             discharging the Executive's
                                             responsibilities or duties
                                             hereunder significantly more (in
                                             terms of either consecutive days or
                                             aggregate days in any calendar
                                             year) than was required of the
                                             Executive prior to the date hereof
                                             without, in either case, the
                                             Executive's prior consent;

                                    (D)      Any material breach of this
                                             Agreement by the Company or any
                                             successor thereto, including,
                                             without limitation, any failure by
                                             the Company to pay to the Executive
                                             the compensation payable to the
                                             Executive by the Company pursuant
                                             to this Agreement; and

                           (iii)    Upon any termination of this Agreement based
                                    upon the Executive being Disabled, the
                                    Executive will promptly be paid the Special
                                    Bonus, if any, set forth in the applicable
                                    Compensation Resolution.

                  (c)      For the Executive's service pursuant to Subsection
                           2(a) hereof, during the Term the Executive shall be a
                           full participant in, and shall be entitled to the
                           perquisites, benefits and service credit for benefits
                           as provided under any and all employee retirement
                           income and welfare benefit policies, plans, programs
                           or arrangements in which senior

                                      -7-
<PAGE>   8

                           executives of the Company participate generally,
                           including without limitation any stock option, stock
                           purchase, stock appreciation, phantom stock, savings,
                           pension, supplemental executive retirement or other
                           retirement income or welfare benefit, deferred
                           compensation, incentive compensation, group and/or
                           executive life, accident, health, dental,
                           medical/hospital or other insurance (whether funded
                           by actual insurance or self-insured by the Company),
                           disability, salary continuation, expense
                           reimbursement and other employee benefit policies,
                           plans, programs or arrangements that may exist as of
                           the date hereof or any equivalent successor policies,
                           plans, programs or arrangements that may be adopted
                           hereafter by the Company (collectively, "Employee
                           Benefits"). A termination by the Company pursuant to
                           Section 4(a) hereof or by the Executive pursuant to
                           Section 4(b) hereof shall not affect any rights which
                           the Executive may have pursuant to any agreement,
                           policy, plan, program or arrangement of the Company
                           providing Employee Benefits, which rights shall be
                           governed by the terms thereof.

                  (d)      Notwithstanding the foregoing, this Agreement may be
                           terminated by the Company or the Executive at any
                           time upon thirty (30) days prior written notice.

         5.       Severance Compensation.

                  (a)      Without affecting any additional obligations of the
                           Company set forth in an applicable Compensation
                           Resolution, if this Agreement is terminated in the
                           manner described in Sections 4(b)(i) or 4(b)(ii)
                           hereof, the Company shall pay to the Executive the
                           amount specified in Section 5(a)(i) hereof within
                           five business days after the date (the "Termination
                           Date") that this Agreement is terminated (the
                           effective date of which shall be the date of
                           termination, or such other date that may be specified
                           by the Executive if the termination is pursuant to
                           Section 4(b) hereof):

                           (i)      In lieu of any further payments to the
                                    Executive for periods subsequent to the
                                    Termination Date, but without affecting the
                                    rights of the Executive referred to in
                                    Section 5(c) hereof or pursuant to any stock
                                    option, phantom stock, stock appreciation
                                    right, restricted stock grant or similar
                                    award, (x) if the termination of the
                                    Executive's employment occurs prior to

                                      -8-
<PAGE>   9

                                    the occurrence of a Change in Control, a
                                    lump sum payment (the "Pre-Change in Control
                                    Severance Payment") in an amount equal to
                                    the sum of (A) the aggregate Base Pay plus
                                    (B) the aggregate Incentive Pay, which, in
                                    each case, the Executive would have received
                                    pursuant to this Agreement during the
                                    remainder of the Term had the Executive's
                                    employment continued for the remainder of
                                    the Term and (y) if the termination of the
                                    Executive's employment occurs subsequent to
                                    the occurrence of a Change in Control, a
                                    lump sum payment (the "Post-Change in
                                    Control Severance Payment") in an amount
                                    equal to the sum of (A) the aggregate Base
                                    Pay plus (B) the aggregate Annual Bonus
                                    which the Executive would have received
                                    pursuant to this Agreement during the
                                    remainder of the Term had the Executive's
                                    employment continued for the remainder of
                                    the Term. The Pre-Change in Control
                                    Severance Payment and the Post-Change in
                                    Control Severance Payment are hereinafter
                                    collectively referred to as the "Severance
                                    Payment."

                           (ii)     For the remainder of the Term the Company
                                    shall arrange to provide the Executive with
                                    Employee Benefits substantially similar to
                                    those which other senior executive officers
                                    of the Company are entitled to receive (and
                                    if and to the extent that such benefits
                                    shall not or cannot be paid or provided
                                    under any policy, plan, program or
                                    arrangement of the Company solely due to the
                                    fact that the Executive is no longer an
                                    officer or employee of the Company, then the
                                    Company shall itself pay to the Executive
                                    and/or the Executive's dependents and
                                    beneficiaries, such Employee Benefits) and
                                    (B) without limiting the generality of the
                                    foregoing, the remainder of the Term shall
                                    be considered service with the Company for
                                    the purpose of service credits under the
                                    Company's retirement income, supplemental
                                    executive retirement and other benefit plans
                                    applicable to the Executive and/or the
                                    Executive's dependents and beneficiaries
                                    immediately prior to the Termination Date.

                  (b)      If this Agreement is terminated during the Term by
                           the Company pursuant to Section 4(a)(ii) hereof or if
                           this Agreement is terminated during the Term by the
                           Executive for any reason other than pursuant to
                           Section 4(b) hereof, the Executive will forfeit any
                           right to receive

                                      -9-
<PAGE>   10

                           any unpaid Incentive Pay. If this Agreement is
                           terminated during the Term (i) by the Company as a
                           result of the death of the Executive or (ii) by the
                           Executive for any reason other than pursuant to
                           Section 4(b) hereof, the Executive will forfeit any
                           right to receive any unpaid Annual Bonus.

                  (c)      Upon written notice given by the Executive to the
                           Company prior to the receipt of any payment pursuant
                           to Section 5(a) hereof, the Executive, at the
                           Executive's sole option, without adjustment to
                           reflect the present value of such amounts as
                           aforesaid, may elect to have all or any of the
                           Severance Payment payable pursuant to Section 5(a)(i)
                           hereof paid to the Executive on a quarterly or
                           monthly basis during the remainder of the Term.

                  (d)      There shall be no right of set-off or counterclaim in
                           respect of any claim, debt or obligation against any
                           payment to or benefit (including Employee Benefits)
                           of the Executive provided for in this Agreement.

                  (e)      Without limiting the rights of the Executive at law
                           or in equity, if the Company fails to make any
                           payment required to be made hereunder on a timely
                           basis, the Company shall pay interest on the amount
                           thereof at an annualized rate of interest equal to
                           the then-applicable Discount Rate (as hereinafter
                           defined) or, if lesser, the highest rate allowed by
                           applicable usury laws. As used herein, the term
                           "Discount Rate" will be deemed to mean the discount
                           rate required to be utilized for purposes of
                           computations under Section 280G of the Internal
                           Revenue Code of 1986, as amended (the "Code"), or any
                           successor provision thereto, or if no such rate is so
                           required to be used, a rate equal to the
                           then-applicable interest rate prescribed by the Code
                           for benefit valuations in connection with
                           non-multiemployer pension plan terminations assuming
                           the immediate commencement of benefit payments.

         6.       No Mitigation Obligation. The parties hereto expressly agree
that the payment of the severance compensation by the Company to the Executive
in accordance with the terms of this Agreement will be liquidated damages, and
that the Executive shall not be required to mitigate the amount of any payment
provided for in this Agreement by seeking other employment or otherwise, nor
shall any profits, income, earnings or other benefits from any source whatsoever
create any mitigation, offset, reduction or any other obligation on the part of
the Executive hereunder or otherwise.

                                      -10-
<PAGE>   11

         7.       Legal Fees and Expenses. It is the intent of the Company that
subsequent to the occurrence of a Change in Control, the Executive not be
required to incur the expenses associated with the enforcement of the
Executive's rights under this Agreement by litigation or other legal action
because the cost and expense thereof would substantially detract from the
benefits intended to be extended to the Executive hereunder. Accordingly, if it
should appear to the Executive that the Company has, subsequent to the
occurrence of a Change in Control, failed to comply with any of its obligations
under this Agreement or in the event that the Company or any other person takes
any action, subsequent to the occurrence of a Change in Control, to declare this
Agreement void or unenforceable, or institutes any litigation designed to deny,
or to recover from, the Executive the benefits intended to be provided to the
Executive hereunder, the Company irrevocably authorizes the Executive from time
to time to retain counsel of the Executive's choice, at the expense of the
Company as hereafter provided, to represent the Executive in connection with the
litigation or defense of any litigation or other legal action, whether by or
against the Company or any director, officer, stockholder or other person
affiliated with the Company, in any jurisdiction. Notwithstanding any existing
or prior attorney-client relationship between the Company and such counsel, the
Company irrevocably consents to the Executive's entering into an attorney-client
relationship with such counsel, and in that connection the Company and the
Executive agree that a confidential relationship shall exist between the
Executive and such counsel. The Company shall pay or cause to be paid and shall
be solely responsible for any and all reasonable attorneys' and related fees and
expenses incurred by the Executive as a result of the Company's failure to
perform this Agreement or any provision thereof or as a result of the Company or
any person contesting the validity or enforceability of this Agreement or any
provision thereof as aforesaid.

         8.       Withholding of Taxes. The Company may withhold from any
amounts payable under this Agreement all federal, state, city or other taxes as
shall be required pursuant to any law or government regulation or ruling.

         9.       Successors and Binding Agreement.

                  (a)      The Company shall require any successor (whether
                           direct or indirect, by purchase, merger,
                           consolidation, reorganization or otherwise) to all or
                           substantially all of the business and/or assets of
                           the Company, to expressly assume and agree to perform
                           this Agreement in the same manner and to the same
                           extent the Company would be required to perform if no
                           such succession had taken place. This Agreement shall
                           be binding upon and inure to the benefit of the
                           Company and any successor to the Company, including
                           without limitation any

                                      -11-
<PAGE>   12

                           persons acquiring directly or indirectly all or
                           substantially all of the business and/or assets of
                           the Company whether by purchase, merger,
                           consolidation, reorganization or otherwise (and such
                           successor shall thereafter be deemed the "Company"
                           for the purposes of this Agreement). This Agreement
                           shall not otherwise be assignable, transferable or
                           delegable by the Company.

                  (b)      This Agreement shall inure to the benefit of and be
                           enforceable by the Executive's personal or legal
                           representatives, executors, administrators,
                           successors, heirs, distributees and/or legatees.

                  (c)      This Agreement is personal in nature and neither of
                           the parties hereto shall, without the consent of the
                           other, assign, transfer or delegate this Agreement or
                           any rights or obligations hereunder except as
                           expressly provided in Section 9(a) hereof. Without
                           limiting the generality of the foregoing, the
                           Executive's right to receive payments hereunder shall
                           not be assignable, transferable or delegable, whether
                           by pledge, creation of a security interest or
                           otherwise, other than by a transfer by the
                           Executive's will or by the laws of descent and
                           distribution and, in the event of any attempted
                           assignment or transfer contrary to this Section 9(c),
                           the Company shall have no liability to pay any amount
                           so attempted to be assigned, transferred or
                           delegated.

                  (d)      The Company and the Executive recognize that each
                           Party will have no adequate remedy at law for breach
                           by the other of any of the agreements contained
                           herein and, in the event of any such breach, the
                           Company and the Executive hereby agree and consent
                           that the other shall be entitled to a decree of
                           specific performance, mandamus or other appropriate
                           remedy to enforce performance of this Agreement.

         10.      Applicable Law. THIS AGREEMENT WILL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF TEXAS (EXCLUSIVE OF
CONFLICTS OF LAW PRINCIPLES) AND THE LAWS OF THE UNITED STATES OF AMERICA AND
WILL, TO THE MAXIMUM EXTENT PRACTICABLE, BE DEEMED TO CALL FOR PERFORMANCE IN
DALLAS COUNTY, TEXAS. COURTS WITHIN THE STATE OF TEXAS WILL HAVE JURISDICTION
OVER ANY AND ALL DISPUTES BETWEEN THE PARTIES HERETO, WHETHER IN LAW OR EQUITY,
ARISING OUT OF OR RELATING TO THIS AGREEMENT. THE PARTIES CONSENT

                                      -12-
<PAGE>   13

TO AND AGREE TO SUBMIT TO THE JURISDICTION OF SUCH COURTS. VENUE IN ANY SUCH
DISPUTE, WHETHER IN FEDERAL OR STATE COURT, WILL BE LAID IN DALLAS COUNTY,
TEXAS. EACH OF THE PARTIES HEREBY WAIVES, AND AGREES NOT TO ASSERT IN ANY SUCH
DISPUTE, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY CLAIM THAT (i)
SUCH PARTY IS NOT PERSONALLY SUBJECT TO THE JURISDICTION OF SUCH COURTS, (ii)
SUCH PARTY AND SUCH PARTY'S PROPERTY IS IMMUNE FROM ANY LEGAL PROCESS ISSUED BY
SUCH COURTS OR (iii) ANY LITIGATION COMMENCED IN SUCH COURTS IS BROUGHT IN AN
INCONVENIENT FORUM.

         11.      Notices. All notices, demands, requests or other
communications that may be or are required to be given, served or sent by either
party to the other party pursuant to this Agreement will be in writing and will
be mailed by first-class, registered or certified mail, return receipt
requested, postage prepaid, or transmitted by hand delivery, telegram or
facsimile transmission addressed as follows:

<TABLE>

<S>                                                  <C>
         (a)      If to the Executive:               3219 Drexel
                                                     Dallas, Texas 75205
                                                     Facsimile Transmission No.:  (214) 526-1992

                                                     Attn: John D. Beletic

                  with a copy (which will
                  not constitute notice) to:         Winstead Sechrest & Minick P.C.
                                                     5400 Renaissance Tower
                                                     1201 Elm Street
                                                     Dallas, Texas  75270
                                                     Facsimile Transmission No.: (214) 745-5390

                                                     Attn: Robert E. Crawford, Jr., Esq.

         (b)      If to the Company:                 WebLink Wireless, Inc.
                                                     3333 Lee Parkway
                                                     Dallas, Texas 75219
                                                     Facsimile Transmission No.: (214) 765-4962
</TABLE>

                                      -13-
<PAGE>   14
<TABLE>
<S>                                                  <C>

                                                     Attn: General Counsel

                  with a copy (which will
                  not constitute notice) to:         Davis Polk & Wardwell
                                                     450 Lexington Avenue
                                                     New York, New York 10017
                                                     Facsimile Transmission No.:  (212) 450-5745

                                                     Attn:  Ulrika Ekman
</TABLE>

Either party may designate by written notice a new address to which any notice,
demand, request or communication may thereafter be given, served or sent. Each
notice, demand, request or communication that is mailed, delivered or
transmitted in the manner described above will be deemed sufficiently given,
served, sent and received for all purposes at such time as it is delivered to
the addressee with the return receipt, the delivery receipt, the affidavit of
messenger or (with respect to a facsimile transmission) the answer back being
deemed conclusive evidence of such delivery or at such time as delivery is
refused by the addressee upon presentation.

         12.      Gender. Words of any gender used in this Agreement will be
held and construed to include any other gender, and words in the singular number
will be held to include the plural, unless the context otherwise requires.

         13.      Amendment. This Agreement may not be amended or supplemented
except pursuant to a written instrument signed by the party against whom such
amendment or supplement is to be enforced. Nothing contained in this Agreement
will be deemed to create any agency, joint venture, partnership or similar
relationship between the parties to this Agreement. Nothing contained in this
Agreement will be deemed to authorize either party to this Agreement to bind or
obligate the other party.

         14.      Counterparts. This Agreement may be executed in multiple
counterparts, each of which will be deemed to be an original and all of which
will be deemed to be a single agreement. This Agreement will be considered fully
executed when all parties have executed an identical counterpart,
notwithstanding that all signatures may not appear on the same counterpart.

         15.      Severability. If any of the provisions of this Agreement are
determined to be invalid or unenforceable, such invalidity or unenforceability
will not invalidate or render unenforceable the remainder of this Agreement, but
rather the entire Agreement will be construed as if not containing the
particular invalid or unenforceable provision or provisions, and the rights and
obligations of the parties will be construed and enforced accordingly. The
parties acknowledge that if any provision of this Agreement is determined

                                      -14-
<PAGE>   15

to be invalid or unenforceable, it is their desire and intention that such
provision be reformed and construed in such manner that it will, to the maximum
extent practicable, be deemed to be valid and enforceable.

         16.      Third Parties. Except as expressly set forth or referred to in
this Agreement, nothing in this Agreement is intended or will be construed to
confer upon or give to any party other than the parties to this Agreement and
their successors and permitted assigns, if any, any rights or remedies under or
by reason of this Agreement.

         17.      Waiver. No failure or delay in exercising any right hereunder
will operate as a waiver thereof, nor will any single or partial exercise
thereof preclude any other or further exercise or the exercise of any other
right.

         18.      Prior Agreements. This Agreement and the agreements,
instruments and documents contemplated by this Agreement, including, without
limitation, that certain Confidentiality and Noncompetition Agreement, dated
June 6, 1997, by and between the Executive and the Company, represent the
parties' entire agreement with respect to the subject matter of this Agreement
and such other agreements, instruments and documents and supersede and replace
any prior agreement or understanding with respect to that subject matter. This
Agreement may not be amended or supplemented except pursuant to a written
instrument signed by the party against whom such amendment or supplement is to
be enforced. Except as expressly set forth in this Agreement (e.g., Section
19(a), etc.), awards under benefit plans (e.g., stock option awards, restricted
stock grants, phantom stock awards, etc.) are not within the scope of this
Agreement and will not be governed by or affected by this Agreement.

         19.      Certain Additional Payments by the Company.

                  (a)      Anything in this Agreement to the contrary
                           notwithstanding, in the event it shall be determined
                           that any payment or distribution by the Company (or
                           any affiliate, stockholder, or subsidiary thereof or
                           any plan or program of the Company or any affiliate,
                           stockholder, or subsidiary thereof) to the Executive
                           (whether paid or payable or distributed or
                           distributable pursuant to the terms of this Agreement
                           or otherwise, but determined without regard to any
                           additional payments required under this Section 19)
                           (a "Payment") is subject or will cause the Executive
                           to be subject to the excise tax imposed by Section
                           4999 of the Code (or any successor provision) (i.e.,
                           while the Executive is considered a "disqualified
                           individual" as such term is defined in Section 280G
                           of the Code and the regulations promulgated

                                      -15-
<PAGE>   16

                           thereunder), or any interest or penalties are
                           incurred by the Executive with respect to such excise
                           tax (such excise tax, together with any such interest
                           and penalties, are hereinafter collectively referred
                           to as the "Excise Tax"), then the Company shall pay
                           to the Executive an additional payment (a "Gross-Up
                           Payment") in an amount such that after payment by the
                           Executive of all taxes (including any interest or
                           penalties imposed with respect to such taxes),
                           including, without limitation, any income taxes (and
                           any interest and penalties imposed with respect
                           thereto) and Excise Taxes imposed upon the Gross-Up
                           Payment, the Executive retains an amount of the
                           Gross-Up Payment equal to the Excise Tax imposed upon
                           the Payments.

                  (b)      Subject to the provisions of Section 19(c), all
                           determinations required to be made under this Section
                           19, including whether and when a Gross-Up Payment is
                           required and the amount of such Gross-Up Payment and
                           the assumptions to be utilized in arriving at such
                           determination, shall be made by the Company's public
                           accounting firm (the "Accounting Firm") which shall
                           provide detailed supporting calculations both to the
                           Company and the Executive as soon as possible
                           following a request made by the Executive or the
                           Company. In the event that the Accounting Firm is
                           serving as accountant or auditor for the individual,
                           entity or group effecting the Change in Control, the
                           Company shall appoint another nationally recognized
                           public accounting firm to make the determinations
                           required hereunder (which accounting firm shall then
                           be referred to as the Accounting Firm hereunder). All
                           fees and expenses of the Accounting Firm shall be
                           borne solely by the Company. Any Gross-Up Payment, as
                           determined pursuant to this Section 19, shall be paid
                           by the Company to the Executive within five (5) days
                           of the receipt of the Accounting Firm's
                           determination. If the Accounting Firm determines that
                           no Excise Tax is payable by the Executive, it shall
                           furnish the Executive with a written opinion that
                           failure to report the Excise Tax on the Executive's
                           applicable federal income tax return would not result
                           in the imposition of a negligence or similar penalty.
                           Any determination by the Accounting Firm shall be
                           binding upon the Company and the Executive. As a
                           result of the uncertainty in the application of
                           Section 4999 of the Code at the time of the initial
                           determination by the Accounting Firm hereunder, it is
                           possible that Gross-Up Payments which will not have
                           been made by the Company should have been made
                           ("Underpayment"), consistent with the calculations
                           required to

                                      -16-
<PAGE>   17

                           be made hereunder. In the event that the Company
                           exhausts its remedies pursuant to Section 19(c) and
                           the Executive thereafter is required to make a
                           payment of any Excise Tax, the Accounting Firm shall
                           determine the amount of the Underpayment that has
                           occurred and any such Underpayment shall be promptly
                           paid by the Company to or for the benefit of the
                           Executive.

                  (c)      The Executive shall notify the Company in writing of
                           any claim by the Internal Revenue Service that, if
                           successful, would require the payment by the Company
                           of the Gross-Up Payment. Such notification shall be
                           given as soon as practicable but no later than ten
                           (10) business days after the Executive is informed in
                           writing of such claim and shall apprise the Company
                           of the nature of such claim and the date on which
                           such claim is requested to be paid. The Executive
                           shall not pay such claim prior to the expiration of
                           the 30-day period following the date on which the
                           Executive gives such notice to the Company (or such
                           shorter period ending on the date that any payment of
                           taxes with respect to such claim is due). If the
                           Company notifies the Executive in writing prior to
                           the expiration of such period that it desires to
                           contest such claim, the Executive shall:

                           (i)      give the Company any information reasonably
                                    requested by the Company relating to such
                                    claim,

                           (ii)     take such action in connection with
                                    contesting such claim as the Company shall
                                    reasonably request in writing from time to
                                    time, including, without limitation,
                                    accepting legal representation with respect
                                    to such claim by an attorney reasonably
                                    selected by the Company,

                           (iii)    cooperate with the Company in good faith to
                                    effectively contest such claim,

                           (iv)     and permit the Company to participate in any
                                    proceedings relating to such claim;

                           provided, however, that the Company shall bear and
                           pay directly all costs and expenses (including
                           additional interest and penalties) incurred in
                           connection with such contest and shall indemnify and
                           hold the Executive harmless, on a "grossed up,"
                           after-tax basis, for any

                                      -17-
<PAGE>   18

                           Excise Tax or any income or other tax (including
                           interest and penalties with respect thereto) imposed
                           as a result of such representation and payment of
                           costs and expenses. Without limitation on the
                           foregoing provisions of this Section 19(c), the
                           Company shall control all proceedings taken in
                           connection with such contest and, at its sole option,
                           may pursue or forgo any and all administrative
                           appeals, proceedings, hearings and conferences with
                           the taxing authority in respect of such claim and
                           may, at its sole option, either direct the Executive
                           to pay the tax claimed and sue for a refund or
                           contest the claim in any permissible manner, and the
                           Executive agrees to prosecute such contest to a
                           determination before any administrative tribunal, in
                           a court of initial jurisdiction and in one or more
                           appellate courts, as the Company shall determine;
                           provided further, that if the Company directs the
                           Executive to pay such claim and sue for a refund, the
                           Company shall advance the amount of such payment to
                           the Executive on an interest-free basis and shall
                           indemnify and hold the Executive harmless, on a
                           "grossed up," after-tax basis, from any Excise Tax or
                           any income or other tax (including interest or
                           penalties with respect thereto) imposed with respect
                           to such advance or with respect to any imputed income
                           with respect to such advance; and provided further,
                           that any extension of the statute of limitations
                           relating to payment of taxes for the taxable year of
                           the Executive with respect to which such contested
                           amount is claimed to be due is limited solely to such
                           contested amount. Furthermore, the Company's control
                           of the contest shall be limited to issues with
                           respect to which a Gross-Up Payment would be payable
                           hereunder and the Executive shall be entitled to
                           settle or contest, as the case may be, any other
                           issue raised by the Internal Revenue Service or any
                           other taxing authority.

                  (d)      If, after the receipt by the Executive of an amount
                           advanced by the Company pursuant to Section 19(c),
                           the Executive becomes entitled to receive, and
                           receives, any refund with respect to such claim, the
                           Executive shall (subject to the Company's complying
                           with the requirements of Section 19(c)) promptly pay
                           to the Company the amount of such refund (together
                           with any interest paid or credited thereon after
                           taxes applicable thereto). If, after the receipt by
                           the Executive of any amount advanced by the Company
                           pursuant to Section 19(c), a determination is made
                           that the Executive shall not be entitled to any
                           refund with respect to such claim and the Company

                                      -18-
<PAGE>   19

                           does not notify the Executive in writing of its
                           intent to contest such denial of refund prior to the
                           expiration of thirty (30) days after such
                           determination, then such advance shall be forgiven
                           and shall not be required to be repaid and the amount
                           of such advance shall offset, to the extent thereof,
                           the amount of Gross-Up Payment required to be paid.

         20.      Forgiveness of Indebtedness; Interest Moratorium. The Company
agrees that the obligations of the Executive to pay principal and/or interest
with respect to that certain Fixed Rate Promissory Note, dated January 28, 1994,
made payable by the Executive to the Company in the original principal amount of
Ninety-Seven Thousand Eight Hundred and 00/100 Dollars ($97,800.00), that
certain Fixed Rate Promissory Note, dated September 22, 1997, made payable by
the Executive to the Company in the original principal amount of Sixteen
Thousand Three Hundred and 00/100 Dollars ($16,300.00) and that certain Fixed
Rate Promissory Note, dated January 14, 1998, made payable by the Executive to
the Company in the original principal amount of Forty-Eight Thousand Nine
Hundred and 00/100 Dollars ($48,900.00) as such notes have been previously or
may be hereafter renewed, extended or modified (hereinafter collectively
referred to as the "Notes") are suspended (although interest will continue to
accrue) until the close of business on January 3, 2001 and; provided the
Executive has not terminated this Agreement during the Term other than pursuant
to Section 4(b) and the Company has not terminated this Agreement pursuant to
Section 4(a)(ii), the such obligations will terminate on the close of business
on January 3, 2001. At such time, if the Company has not previously terminated
this Agreement pursuant to Section 4(a)(ii), the Company will mark such Notes
"paid in full" and will deliver such Notes to the Executive.

                                      -19-
<PAGE>   20

         21.      No Retroactive Recovery of Compensation. The Company hereby
waives any right to seek recovery of any payment or other benefit paid or
provided to the Executive pursuant to this Agreement subsequent to the payment
or delivery thereof.

         22.      Assistance with Transition. In the event the Executive elects
not to renew this Agreement, the Executive agrees to use reasonable efforts to
assist the Company in retaining a successor for the Executive and in exchange
for such assistance, the Board may, in its sole discretion, elect to accelerate
the vesting of any option, restricted stock, phantom stock, stock appreciation
or similar award made to the Executive. The Company acknowledges and agrees that
the failure of the Executive to comply with the provisions of this Section 22
will not give rise to any remedy on behalf of the Company (including, without
limitation, any right to terminate this Agreement or any other agreement between
the Company and the Executive or any right to equitable relief) or subject the
Executive to any liability (including, without limitation, damages, whether
sought in an action at law or in equity and whether or not sought in an action
in contract, in tort or otherwise).

                [BALANCE OF THIS PAGE INTENTIONALLY LEFT BLANK.]

                                      -20-
<PAGE>   21

         IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed and delivered as of the date first above written.

                                     COMPANY

                                     WEBLINK WIRELESS, INC.

                                     By: /s/ Frederick G. Anderson
                                         ---------------------------------------
                                           Name:
                                                 -------------------------------
                                           Title:  VP
                                                 -------------------------------

                                     EXECUTIVE:

                                     /s/ John D. Beletic
                                     -------------------------------------------
                                     John D. Beletic

                                      -21-

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