PRONET INC /DE/
SC 13D, 1996-04-26
RADIOTELEPHONE COMMUNICATIONS
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<PAGE>

                     SECURITIES AND EXCHANGE COMMISSION
                          WASHINGTON, D.C.  20549

                               SCHEDULE 13D

                 Under the Securities Exchange Act of 1934

                      TELETOUCH COMMUNICATIONS, INC.
        ----------------------------------------------------------
                           (Name of Issuer)

                      Common Stock, $.001 par value
        ----------------------------------------------------------
                     (Title of Class of Securities)

                              87951V 10 7 
        ----------------------------------------------------------
                            (CUSIP Number)

                             Mark A. Solls
                  Vice President and General Counsel
                              ProNet Inc.
                           6340 LBJ Freeway
                          Dallas, Texas 75240
                            (214) 687-2000  
        ----------------------------------------------------------
              (Name, Address and Telephone Number of Person
           Authorized to Receive Notices and Communications)

                            April 16, 1996                             
        ----------------------------------------------------------
        (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to 
report the acquisition which is the subject of this Schedule 13D, and is 
filing this schedule because of Rule 13d-1(b)(3) or (4), check the following 
box.   / /

Check the following box if a fee is being paid with the statement.   /X/  (A 
fee is not required only if the reporting person:  (1) has a previous 
statement on file reporting beneficial ownership of more than five percent of 
the class of securities described in Item 1; and (2) has filed no amendment 
subsequent thereto reporting beneficial ownership of less than five percent 
of such class.  See Rule 13d-7.)

Note:  Six copies of this statement, including all exhibits, should be filed 
with the Commission.  See Rule 13d-1(a) for other parties to whom copies are 
to be sent.

*The remainder of this cover page shall be filled out for a reporting 
person's initial filing on this form with respect to the subject class of 
securities, and for any subsequent amendment containing information which 
would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be 
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange 
Act of 1934 ("Act") or otherwise subject to the liabilities of that section 
of the Act but shall be subject to all other provisions of the Act (however, 
see the Notes). 

                   (Continued on following page(s))

                          Page 1 of 11 Pages

                   Exhibit Index located on page 11. 

<PAGE>

CUSIP NO. 87951V 10 7                                 Page   2   of  11   Pages
          -----------                                       ---      --- 







- -------------------------------------------------------------------------------
  1  Name of Reporting Person   
     S.S. or I.R.S. Identification No. of Above Person

     ProNet Inc.

- -------------------------------------------------------------------------------

  2  Check the Appropriate Box if a Member of a Group*       (a)           / /
                                                             (b)           / /

- -------------------------------------------------------------------------------

  3  SEC USE ONLY

- -------------------------------------------------------------------------------

  4  Source of Funds
                  OO     See Item 3
- -------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required Pursuant to 
     Items 2(d) or 2(e)      / /
- -------------------------------------------------------------------------------
  6  Citizenship or Place of Organization
              Delaware
- -------------------------------------------------------------------------------
 Number of Shares             7 Sole Voting Power
 Beneficially Owned                      0
 By Each Reporting           --------------------------------------------------
 Person With                  8 Shared Voting Power
                                         *See Item 5
                             --------------------------------------------------
                              9 Sole Dispositive Power
                                         0
                             --------------------------------------------------
                             10 Shared Dispositive Power
                                         0
- -------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned by Each Reporting Person
         *See Item 5
- -------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) Excludes Certain Shares
                                                                       / /
- -------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)
          70.5%
- -------------------------------------------------------------------------------
 14  Type of Reporting Person
          CO
- -------------------------------------------------------------------------------

                                 Page 2 of 11 Pages

<PAGE>

ITEM 1.     SECURITY AND ISSUER.

    The class of equity securities to which this Statement relates is the 
Common Stock, par value $.001 per share ("Teletouch Common Stock"), of 
Teletouch Communications, Inc., a Delaware corporation ("Teletouch").  The 
address of the principal executive offices of Teletouch is 110 North College,
Suite 200, Tyler, Texas 75202.

ITEM 2.     IDENTITY AND BACKGROUND.

    ProNet Inc., a Delaware corporation ("ProNet"), is filing this Statement.  
ProNet provides wireless messaging services in the United States.  The address 
of ProNet's principal place of business and principal office is 6340 LBJ 
Freeway, Dallas, Texas 75240.

    (a)-(c), (f).  The name, business address and present principal 
occupation or employment of each executive officer and director of ProNet is 
set forth on SCHEDULE I hereto, which Schedule is incorporated herein by 
reference.  All such persons are United States citizens. Such Schedule also 
sets forth the principal business and address of each employer of such 
individuals (other than ProNet).

    (d) and (e).   Neither ProNet nor, to the best knowledge of ProNet, any 
of the persons listed on SCHEDULE I attached hereto has during the last five 
years (i) been convicted in a criminal proceeding (excluding traffic 
violations or similar misdemeanors) or (ii) been a party to a civil 
proceeding of a judicial or administrative body of competent jurisdiction and 
as a result of such proceeding was or is subject to a judgment, decree or 
final order enjoining future violations of, or prohibiting or mandating 
activities subject to, federal or state securities laws or finding any 
violation of such laws.

ITEM 3.     SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

    ProNet is filing this Schedule as a result of its entering into the 
Voting Agreement described in Item 4. Under such agreement, certain Teletouch 
stockholders have agreed to vote their shares of Teletouch Common Stock in 
favor of a proposed merger of Teletouch into a wholly-owned subsidiary of 
ProNet (the "Merger"). ProNet anticipates financing the cash amounts 
(totaling approximately $106 million) payable as a result of the Merger 
through borrowings under its credit agreement (which may be amended 
subsequent to the date hereof) and/or consummating a debt and/or equity 
financing.  See Item 4 for a more complete discussion of the Voting Agreement
and the proposed Merger.

ITEM 4.     PURPOSE OF TRANSACTION.

    On April 16, 1995, ProNet entered into an Agreement and Plan of Merger 
(the "Merger Agreement") with ProNet Subsidiary, Inc., a Delaware corporation 
and a wholly-owned subsidiary of ProNet ("Merger Sub"), and Teletouch, pursuant
to which Teletouch will be merged with and into Merger Sub.  The terms of the 
Merger Agreement are described more fully below.

    THE VOTING AGREEMENT.  In connection with the execution of the Merger 
Agreement, ProNet entered into a Voting Agreement on April 16, 1996 (the 
"Voting Agreement") with Continental Illinois Venture Corporation, a Delaware 
corporation ("CIVC"), CIVC Partners I, a Delaware general partnership, Rainbow 
Resources, Inc., a Texas corporation, GM Holdings, LLC, a Tennessee limited 

                                 Page 3 of 11 Pages

<PAGE>

liability company, Robert M. McMurrey and G. David Higginbotham 
(collectively, the "Voting Parties") pursuant to which the Voting Parties 
agreed (i) to attend the Teletouch stockholders' meeting, in person or by 
proxy, and to vote, or cause to be voted (or, if the stockholders of 
Teletouch act by written consent, to consent in writing, or cause to consent 
in writing, with respect to) all shares of Teletouch Common Stock, Teletouch 
Series A 14% Cumulative Preferred Stock ("Series A Preferred"), Teletouch 
Series B Preferred Stock ("Series B Preferred") and any other voting 
securities of Teletouch, whether issued before or after the execution of the 
Voting Agreement, that such Voting Party owns or has the right to vote or 
consent with respect to (A) for approval and adoption of the Merger Agreement 
and the Merger and (B) against any proposal or other matter that may 
interfere or be inconsistent with the Merger, (ii) not to directly or 
indirectly sell, transfer, pledge or otherwise dispose of, or grant a proxy 
with respect to, any Teletouch securities to any person other than ProNet and 
(iii) to exercise all of their warrants to purchase Teletouch Common Stock or 
Series B Preferred prior to the record date for determining the Teletouch 
stockholders entitled to vote or consent with respect to the approval and 
adoption of the Merger Agreement and the Merger.  In addition, each Voting 
Party agreed not to initiate, solicit or encourage (including by way of 
furnishing information or assistance), or take any other action to facilitate,
directly or indirectly, any inquiries or the making of any proposal or offer 
relating to, or that may reasonably be expected to lead to, any competing or 
alternate transaction to the Merger.  The foregoing summary is qualified in its
entirety by reference to the Voting Agreement, a copy of which is attached 
hereto as EXHIBIT 1.

    THE MERGER AGREEMENT.  Pursuant to the Merger Agreement, Teletouch will 
be merged with and into Merger Sub, which shall continue as the surviving 
corporation of the Merger.  The name of the surviving corporation shall be 
"Teletouch Communications, Inc." 

    MERGER CONSIDERATION.  The Merger Agreement provides that upon 
consummation of the Merger, (i) each share of Teletouch Common Stock shall be 
converted into the right to receive a specified number of shares of ProNet 
common stock, par value $.01 per share ("ProNet Common Stock"), (ii) each 
share of Series B Preferred shall be converted into the right to receive a 
specified number of shares of ProNet Common Stock, and (iii) each share of 
Series A Preferred shall be converted into the right to receive cash in the 
amount of $1,000 per share plus all accrued but unpaid dividends on such share
as of July 31, 1996. 

    Pursuant to the terms of the Merger Agreement, each share of Teletouch 
Common Stock, other than shares of Teletouch Common Stock held by certain 
specified parties, including Teletouch's principal stockholder, executive 
officers and directors (the "Affiliated Stockholders"), will be converted 
into the right to receive shares of ProNet Common Stock having a value equal 
to the greater of (i) the number of shares of ProNet Common Stock to be 
received by the Affiliated Stockholders (as provided below) or (ii) $5.50.  
The Merger Agreement provides that each share of Teletouch Common Stock held 
by the Affiliated Stockholders shall be converted into the right to receive 
that fraction of one share of ProNet Common Stock equal to the quotient (the 
"Affiliated Stockholder Common Stock Exchange Ratio") obtained by dividing 
$5.00 by the average closing price of the ProNet Common Stock for the 20 
trading days beginning 22 trading days prior to the 


                                 Page 4 of 11 Pages

<PAGE>

scheduled closing of the Merger (the "Average Closing Price"); PROVIDED, 
HOWEVER, that if the Average Closing Price is greater than $26.94, then the 
Affiliated Stockholder Common Stock Exchange Ratio shall be 0.1856; and PROVIDED
FURTHER, that if the Average Closing Price is less than $24.37, then the 
Affiliated Stockholder Common Stock Exchange Ratio shall be 0.20517.  The 
Merger Agreement also provides that Teletouch has the right to terminate the 
Merger Agreement if the Average Closing Price is less than $20.75; PROVIDED, 
HOWEVER, that ProNet shall have the option to prevent such termination by 
providing additional shares of ProNet Common Stock so that the Affiliated 
Stockholder Common Stock Exchange Ratio shall be equal to the quotient 
obtained by dividing $4.26 by the Average Closing Price. 

    Pursuant to the terms of the Merger Agreement, upon the closing of the 
Merger, each share of Series B Preferred will be converted into the right to 
receive shares of ProNet Common Stock having a value equal to six times the 
number of shares of ProNet Common Stock issuable upon the conversion of a 
share of Teletouch Common Stock held by an Affiliated Stockholder.

    TELETOUCH COVENANTS.  Pursuant to the Merger Agreement, Teletouch has 
agreed to take or perform certain actions during the period between the signing
of the Merger Agreement and the earlier to occur of the closing of the Merger or
the termination of the Merger Agreement including, without limitation, (i) 
operating its business in the usual and ordinary course, (ii) preserving its 
business organization substantially intact, (iii) maintaining its properties 
and assets, (iv) keeping its insurance and bonds in full force and effect, 
(v) promptly notifying ProNet of any material change in the condition of 
Teletouch's business, properties, assets or liabilities and (vi) terminating 
any negotiations with any third parties regarding a merger or consolidation with
Teletouch.  In addition, Teletouch has agreed not to (i) change the level of
compensation to its directors, officers and employees, other than in the 
ordinary course, (ii) declare or pay any dividend or make any other 
distribution in respect of outstanding shares of capital stock, (iii) redeem, 
purchase or otherwise acquire any shares of its capital stock, (iv) sell, 
grant, award, deliver or limit the voting rights of any of its capital stock, 
(v) acquire or agree to acquire any business, except as previously disclosed 
to ProNet, (vi) sell, lease, exchange, mortgage, pledge, transfer or 
otherwise dispose of any of its assets except in the ordinary course of 
business, (vii) initiate, solicit or encourage (including by way of 
furnishing information or assistance), or take any other action to 
facilitate, directly or indirectly, any inquiries or the making of any 
proposal or offer relating to, or that may reasonably be expected to lead to, 
a merger, consolidation or similar transaction with Teletouch, (viii) release 
any third party from its obligations under any existing standstill agreement 
relating to a merger or consolidation with Teletouch, (ix) amend its 
Certificate of Incorporation or its bylaws, (x) change any of its significant 
accounting policies or (xi) incur any obligation for borrowed money which 
would, when aggregated with the Company's other indebtedness then outstanding 
(including the liquidation preference of and accrued dividends on the Series 
A Preferred and the principal of and accrued interest on Teletouch's 14% 
Junior Subordinated Notes and the amount of any prepayment penalties to be 
paid in respect of such indebtedness as a result of the completion of the 
transactions contemplated by the Merger Agreement), exceed $110 million.

                                 Page 5 of 11 Pages

<PAGE>

    PRONET COVENANTS.  Pursuant to the Merger Agreement, ProNet has agreed to 
take or perform certain actions during the period between the signing of the 
Merger Agreement and the earlier to occur of the closing of the Merger or the 
termination of the Merger Agreement including, without limitation, (i) 
operating its business in the usual and ordinary course, (ii) preserving its 
business organization substantially intact, (iii) maintaining its properties 
and assets, (iv) keeping its insurance and bonds in full force and effect, 
(v) promptly notifying Teletouch of any material change in the condition of 
its business, properties, assets or liabilities, (vi) furnishing Teletouch 
with a firm commitment letter or letters regarding the financing necessary to 
consummate the transactions contemplated by the Merger Agreement, (vii) 
consummating the transactions contemplated by the commitment letters, to the 
extent necessary to consummate the Merger, (viii) filing all tax returns 
required to be filed prior to the closing date and (ix) paying in full the 
principal amounts then outstanding with respect to the $10,000,000 in 
aggregate principal amount of Teletouch's 14% Junior Subordinated Notes.  In 
addition, ProNet has covenanted not to (i) knowingly take any action that would
result in a failure to maintain the eligibility of the ProNet Common Stock 
for quotation on the Nasdaq National Market, (ii) amend its Certificate of 
Incorporation or bylaws in a manner inconsistent with the terms of the Merger 
Agreement or that is likely to delay the completion of the transactions 
contemplated thereby, (iii) declare or pay any dividend or make any other 
distribution in respect of outstanding shares of capital stock, (iv) redeem, 
purchase or otherwise acquire any shares of its capital stock, (v) sell, 
lease, exchange, mortgage, pledge, transfer or otherwise dispose of any of 
its assets except in the ordinary course of business or (vi) acquire or agree 
to acquire any business, except as previously disclosed to Teletouch.


    CLOSING CONDITIONS.  The obligations of ProNet and Teletouch to 
consummate the Merger are subject to the satisfaction or waiver of certain 
conditions, including without limitation, (i) declaration of effectiveness of 
the registration statement relating to the Merger Agreement (the "Registration
Statement") by the Securities and Exchange Commission, (ii) approval of the 
Merger and the Merger Agreement by Teletouch's and ProNet's stockholders, 
(iii) the absence of any governmental order prohibiting consummation of the 
Merger, (iv) expiration of the applicable waiting period under the 
Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, (v) approval
of the applications for transfer to ProNet of the Federal Communications 
Commission licenses held by Teletouch and (vi) approval for quotation on the
Nasdaq Stock Market of the shares of ProNet Common Stock to be issued in 
the Merger.

    TERMINATION.  The Merger Agreement may be terminated under certain 
circumstances, including without limitation, (i) by mutual written consent of 
the parties, (ii) by ProNet, if any representation or warranty of Teletouch 
was not correct in any material respect at the time it was made or upon a 
material breach of any covenant or agreement on the part of Teletouch, (iii) 
by Teletouch, if any representation or warranty of ProNet was not correct in 
any material respect at the time it was made or upon a material breach of any 
covenant or agreement on the part of ProNet, (iv) by either party if there 
exists a final and nonappealable governmental order preventing consummation 
of the Merger, (v) by Teletouch, if the ProNet stockholders do not approve 
the Merger and the Merger Agreement, (vi) by either party if the Teletouch 
stockholders do not approve


                                  Page 6 of 11 Pages


<PAGE>

the Merger and the Merger Agreement, (vii) by ProNet, if the board of 
directors of Teletouch changes its recommendation of the Merger or if a 
tender offer or exchange offer for outstanding shares of Teletouch Common 
Stock is commenced and the board of directors of Teletouch does not recommend 
that the stockholders not tender their shares in such tender offer, (viii) by 
Teletouch, if the board of directors of ProNet changes its recommendation of 
the Merger, (ix) by Teletouch, if ProNet Common Stock is trading below a 
certain level, as specified in the Merger Agreement (provided, however, that 
in such event ProNet has the option to block Teletouch's termination of the 
Merger Agreement by providing additional shares of ProNet Common Stock so 
that the Affiliated Stockholder Common Stock Exchange Ratio shall be equal to 
the quotient obtained by dividing $4.26 by the Average Closing Price), (x) by 
Teletouch, if ProNet fails to file the Registration Statement by June 15, 1996,
(xi) by Teletouch, if ProNet fails to mail the proxy statement/prospectus 
relating to the Merger Agreement to Teletouch's and ProNet's stockholders 
within five days after the Securities and Exchange Commission declares the 
Registration Statement effective, (xii) by Teletouch before such proxy 
statement/prospectus is placed in the mail, if there occurs a material 
adverse change in the business of ProNet, (xiii) by ProNet before such proxy 
statement/prospectus is placed in the mail, if there occurs a material 
adverse change in the business of Teletouch, (xiv) by Teletouch, if ProNet 
refuses to consummate the Merger on the second business day after all of the 
closing conditions set forth in the Merger Agreement have been satisfied or 
waived or (xv) by ProNet, if Teletouch refuses to consummate the Merger on 
the second business day after all of the closing conditions set forth in the 
Merger Agreement have been satisfied or waived.  The foregoing summary is 
qualified in its entirety by reference to the Merger Agreement, a copy of 
which is attached hereto as EXHIBIT 2.

    Upon the closing of the Merger, Teletouch Common Stock will cease to be 
authorized to be quoted on the SmallCap Market of the Nasdaq Stock Market and 
will be eligible for termination of registration pursuant to Section 12(g)(4) 
of the Securities Exchange Act of 1934, as amended.

ITEM 5.     INTEREST IN THE SECURITIES OF THE ISSUER.

    (a)(b)  The Voting Parties have agreed with ProNet to vote an aggregate 
of 7,292,647 shares of Teletouch Common Stock (representing approximately 
70.5% of Teletouch Common Stock assuming exercise of all Teletouch Common 
Stock warrants held by the Voting Parties) in favor of the Merger Agreement.  
3,991,260 of such shares of Teletouch Common Stock are not currently outstanding
but are issuable upon the exercise of Warrants that certain of the Voting 
Parties have agreed to exercise prior to the record date for determining 
Teletouch stockholders entitled to vote or consent with respect to approval and 
doption of the Merger Agreement and the Merger.  The following table sets forth
the number of shares of Teletouch Common Stock, and warrants exercisable for 
Teletouch Common Stock, held by the Voting Parties: 


                                 Page 7 of 11 Pages

<PAGE>


                                                   TELETOUCH COMMON
                        TELETOUCH COMMON STOCK       STOCK WARRANTS
                        ----------------------       --------------

CIVC                                --                 3,991,260

CIVC Partners I                443,473                        --

GM Holdings, L.L.C.            607,914                        --

Rainbow Resources, Inc.      1,800,000                        --
             
Robert M. McMurrey                  --                        --
             
G. David Higginbotham          450,000                        --
                             ---------                 ---------
                             3,301,387                 3,991,260
                             ---------                 ---------
                             ---------                 ---------

    ProNet disclaims beneficial ownership of all of the shares of Teletouch 
Common Stock that are subject to the Voting Agreement.

    (c)     Except as set forth herein, ProNet has not engaged in any 
transaction with respect to Teletouch Common Stock during the past 60 days.

    (d)     None.

    (e)     Not applicable.

ITEM 6.     CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS, OR RELATIONSHIPS WITH 
            RESPECT TO SECURITIES OF THE ISSUER.

     VOTING AGREEMENT.  See the description set forth in Item 4 above.

     MERGER AGREEMENT.  See the description set forth in Item 4 above.

ITEM 7.     MATERIAL TO BE FILED AS EXHIBITS.

       EXHIBIT 1    Voting Agreement by and among ProNet Inc. and Continental
                    Illinois Venture Corporation, CIVC Partners I, GM Holdings,
                    LLC, Rainbow Resources, Inc., Robert M. McMurrey and 
                    G. David Higginbotham, dated as of April 15, 1996

       EXHIBIT 2    Agreement and Plan of Merger by and among ProNet Inc.,
                    ProNet Subsidiary, Inc. and Teletouch Communications, Inc.,
                    dated as of April 15, 1996

       EXHIBIT 3    Amended and Restated Credit Agreement dated February 9,
                    1995, by and among ProNet Inc., The First National Bank of
                    Chicago, as Agent and the Lenders party thereto (filed
                    as an exhibit to ProNet Inc.'s Annual Report on Form 10-K
                    for the year ended December 31, 1994, and incorporated
                    herein by reference)

       EXHIBIT 4    Waiver, Consent and Amendment No. 1 dated as of June 12, 
                    1995, by and among ProNet Inc., The First National Bank of
                    Chicago, as Agent, and the Lenders party thereto (filed
                    as an exhibit to ProNet Inc.'s Registration Statement on 
                    Form S-4 (File No. 33-60925) Filed July 7, 1995, and 
                    incorporated herein by reference)


                             Page 8 of 11 Pages

<PAGE>

                            SIGNATURE

    After reasonable inquiry and to the best of my knowledge and belief, I 
certify that the information set forth in this statement is true, complete 
and correct.

Date:  April 26, 1996      PRONET INC.


                           By:   /s/ Mark A. Solls           
                               -------------------------------------
                                 Mark A. Solls
                                  Vice President and General Counsel 







                        Page 9 of 11 Pages




<PAGE>

                            SCHEDULE 1

            CERTAIN INFORMATION REGARDING EXECUTIVE OFFICERS
                     AND DIRECTORS OF PRONET INC.


<TABLE>
<CAPTION>
         NAME AND POSITION                      BUSINESS ADDRESS            PRESENT OCCUPATION
         -----------------                      ----------------            ------------------
<S>                                             <C>                         <C>
Jackie R. Kimzey, Chairman, Chief Executive     6340 LBJ Freeway
Officer and Director                            Dallas, Texas 75240

David J. Vucina, President, Chief Operating     6340 LBJ Freeway
Officer and Director                            Dallas, Texas 75240

Jan E. Gaulding, Senior Vice President,         6340 LBJ Freeway
Treasurer and Chief Financial Officer           Dallas, Texas 75240

Jeffery A. Owens, Senior Vice President and     6340 LBJ Freeway
Chief Technology Officer                        Dallas, Texas 75240

Mark A. Solls, Vice President, Secretary and    6340 LBJ Freeway
General Counsel                                 Dallas, Texas 75240

Bo Bernard, Executive Vice President            6340 LBJ Freeway
                                                Dallas, Texas 75240

Thomas V. Bruns, Director                       300 Technology Park         Chairman of the Board,
                                                Lake Mary, Florida 32746    Zaun Equipment Company,
                                                                            a power equipment distribution
                                                                            company

Harvey B. Cash, Director                        13455 Noel Road             General Partner, Berry
                                                Suite 1670                  Cash Southwest
                                                Dallas, Texas 75240         Partnership, a venture
                                                                            capital partnership

Edward E. Jungerman, Director                   12221 Merit Drive           President, Impulse
                                                Suite 1150                  Telecommunications
                                                Dallas, Texas 75251         Corporation, a strategic 
                                                                            telecommunications consulting
                                                                            firm

Mark C. Masur, Director                         5949 Sherry Lane            General Partner,
                                                Suite 1755                  O'Donnell & Masur, a
                                                Dallas, Texas 75225         venture capital partnership
</TABLE>

                                 Page 10 of 11 Pages


<PAGE>

                                 EXHIBIT INDEX


                                                                          Page
                                                                           No.
                                                                           ---
EXHIBIT 1     Voting Agreement by and among ProNet Inc. and Continental
              Illinois Venture Corporation, CIVC Partners I, GM Holdings,
              LLC, Rainbow Resources, Inc., Robert M. McMurrey and G.
              David Higginbotham, dated as of April 15, 1996

EXHIBIT 2     Agreement and Plan of Merger by and among ProNet Inc.,
              ProNet Subsidiary, Inc. and Teletouch Communications, Inc.,
              dated as of April 15, 1996

EXHIBIT 3     Amended and Restated Credit Agreement dated February 9,
              1995, by and among ProNet Inc., The First National Bank of
              Chicago, as Agent and the Lenders party thereto (filed
              as an exhibit to ProNet Inc.'s Annual Report on Form 10-K
              for the year ended December 31, 1994, and incorporated
              herein by reference)

EXHIBIT 4     Waiver, Consent and Amendment No. 1 dated as of June 12, 
              1995, by and among ProNet Inc., The First National Bank of
              Chicago, as Agent, and the Lenders party thereto (filed
              as an exhibit to ProNet Inc.'s Registration Statement on 
              Form S-4 (File No. 33-60925) Filed July 7, 1995, and 
              incorporated herein by reference)




                           Page 11 of 11 Pages



<PAGE>



                                   VOTING AGREEMENT


    VOTING AGREEMENT, dated as of April 15, 1996 (this "AGREEMENT"), by and 
among ProNet Inc., a Delaware corporation ("PRONET"), on the one hand, and 
Continental Illinois Venture Corporation, a Delaware corporation, CIVC 
Partners I, a Delaware partnership, GM Holdings, LLC, a Tennessee limited 
liability company, Rainbow Resources, Inc., a Texas corporation ("RAINBOW"), 
Robert M. McMurrey ("MCMURREY") and G. David Higginbotham  (collectively, the 
"STOCKHOLDERS"), on the other hand.

    WHEREAS, concurrently herewith, ProNet, ProNet Subsidiary, Inc., a 
Delaware corporation and a wholly-owned subsidiary of ProNet ("MERGER SUB"), 
and Teletouch Communications, Inc., a Delaware corporation (the "COMPANY"), 
are entering into that certain Agreement and Plan of Merger of even date 
herewith (the "MERGER AGREEMENT"), providing for the merger (the "MERGER") of 
the Company with and into Merger Sub (capitalized terms used without 
definition herein having the meanings ascribed thereto in the Merger 
Agreement);

    WHEREAS, the Stockholders are the beneficial owners of the number of (a) 
shares of Company Common Stock, Company Series A Preferred Stock and Company 
Series B Preferred Stock (the "COMPANY SHARES") set forth in Schedule I 
hereto and (b) Common Stock Warrants and Series B Preferred Stock Warrants 
(together with the Company Shares, the "Company Securities") set forth in 
Schedule I hereto;

    WHEREAS, approval of the Merger Agreement by the Company's stockholders 
is a condition to the consummation of the Merger; and

    WHEREAS, the Stockholders fully support the Merger and, in order to 
encourage ProNet to enter into the Merger Agreement with the Company, the 
Stockholders are willing to enter into certain arrangements with respect to 
the Company Securities owned by them.

    NOW THEREFORE, in consideration of the foregoing and the mutual covenants 
and agreements set forth herein, the parties hereto agree as follows:

                                      ARTICLE I

                                        VOTING

    SECTION 1.1    AGREEMENT TO VOTE OR CONSENT.  Each Stockholder hereby 
agrees to attend the Company Stockholders' Meeting, in person or by proxy, 
and to vote, or cause to be voted (or, if the stockholders of the Company act 
by written consent, to consent in writing, or cause to consent in writing, 
with respect to) all Company Securities, and any other voting securities of 
the Company, whether issued heretofore or hereafter, that such Stockholder 
owns or has the right to vote or consent with respect to (a)  for approval 
and adoption of the Merger Agreement and the Merger, such Agreement to vote 
to apply also to any adjournment or adjournments of the Company Stockholders' 



<PAGE>

Meeting, and (b) against any proposal or other matter that may interfere or 
be inconsistent with the Merger (including, without limitation, a Competing 
Transaction).

    SECTION 1.2    REVOCATION OF PROXIES AND CONSENTS.  To the extent 
inconsistent with Section 1.1 hereof, each Stockholder hereby revokes any and 
all previous proxies or written consents with respect to such Stockholder's 
Company Shares or any other voting securities of the Company.

    SECTION 1.3    STOCKHOLDERS' SUPPORT OF THE MERGER.  From the date hereof 
until the first to occur of the Closing or the termination of the Merger 
Agreement:

         (a)  No Stockholder or affiliate or associate thereof, other than the
    Company and its subsidiaries (collectively with respect to each
    Stockholder, a "STOCKHOLDER GROUP"), will, directly or indirectly, sell,
    transfer, pledge or otherwise dispose of, or grant a proxy with respect to,
    any Company Securities to any person other than ProNet or its designee, or
    grant an option with respect to any of the foregoing, or enter into any
    other agreement or arrangement with respect to any of the foregoing (it
    being understood that Rainbow has previously pledged 175,000 shares of
    Company Common Stock to secure certain indebtedness (the "McMurrey
    Pledge")).

         (b)  Each Stockholder agrees to exercise (i) all of such Stockholder's
    Series B Preferred Stock Warrants prior to the Closing of the Merger and
    (ii) that number of Common Stock Warrants set forth opposite such
    Stockholder's name on Schedule I hereto prior to the record date for
    determining the Company Stockholders entitled to vote or consent with
    respect to the approval and adoption of the Merger Agreement and the
    Merger.  The Stockholders each represent, warrant and agree that the number
    of shares of Company Common Stock subject to this Agreement together with
    the number of shares of Company Common Stock issuable upon the exercise of
    the Common Stock Warrants identified in clause (ii) of the preceding
    sentence shall represent at least a majority of the outstanding shares of
    Company Common Stock that are or may become entitled to vote or consent on
    the Merger Agreement and the Merger.

         (c)  No Stockholder or any other member of any Stockholder Group will
    initiate, solicit or encourage (including by way of furnishing information
    or assistance), or take any other action to facilitate, directly or
    indirectly, any inquiries or the making of any proposal or offer relating
    to, or that may reasonably be expected to lead to, any Competing
    Transaction, or enter into discussions or negotiate with any person or
    entity in furtherance of such inquiries or to obtain a Competing
    Transaction, or agree to, or endorse, any Competing Transaction, or
    authorize or permit any of the officers, directors, employees or agents of
    any Stockholder or any member of any Stockholder Group or any investment
    banker, financial advisor, attorney, accountant or other representative
    retained by any Stockholder or any other member of any Stockholder Group to
    take any such action.  Each Stockholder shall immediately notify ProNet of
    all relevant terms of any such inquiries or proposals received by such
    Stockholder or any other member of any Stockholder Group or by any such
    officer, director, employee, agent, investment banker, financial advisor,
    attorney, accountant or other representative relating to any of such
    matters and, if such inquiry or proposal is in writing, such Stockholder
    shall immediately deliver or cause to be delivered 

                                        2

<PAGE>


    to ProNet a copy of such inquiry or proposal; provided, however, that
    nothing contained in this subsection (c) shall prohibit any Stockholder or
    any officer, director, employee or agent of any Stockholder who is a member
    of the Company's Board of Directors in such capacity from complying with 
    Rule 14e-2 or Rule 14d-9 promulgated under the Exchange Act.

                                      ARTICLE II

                      REPRESENTATIONS, WARRANTIES AND COVENANTS


    SECTION 2.1    REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE 
STOCKHOLDERS.  Each Stockholder hereby represents and warrants to, and 
covenants and agrees with, ProNet as follows:

         (a)  other than the Company Securities set forth by such Stockholder's
    name in Schedule I hereto and options granted to McMurrey and G. David
    Higginbotham under the Option Plan and to be assumed by ProNet under the
    Merger Agreement, such Stockholder does not own of record or beneficially,
    or have any interest in, any shares of capital stock of the Company, any
    securities exercisable for, convertible into or exchangeable for capital
    stock of the Company, or any other right to acquire any such capital stock
    or other securities;

         (b)  such Stockholder has good and marketable title to all Company
    Securities, free and clear of all liens, claims, charges and encumbrances
    other than those that arise under the McMurrey Pledge;

         (c)  such Stockholder will execute and deliver to ProNet a letter in
    the form of Exhibit A to the Merger Agreement;

         (d)  this Agreement has been duly authorized by all necessary action
    on the part of such Stockholder, has been duly executed by such Stockholder
    and constitutes a valid and binding agreement of such Stockholder
    enforceable against such stockholder in accordance with its terms, except
    that (a) such enforcement may be subject to applicable bankruptcy,
    insolvency, fraudulent transfer, or other laws, now or hereafter in effect,
    affecting creditors' rights generally, and (b) the remedy of specific
    performance and injunctive and other forms of equitable relief may be
    subject to equitable defenses (including commercial reasonableness, good
    faith, and fair dealing) and to the discretion of the court before which
    any proceeding therefor may be brought; and

         (e)  neither the execution and delivery of this Agreement by such
    Stockholder nor the consummation of the transactions contemplated hereby
    will (i) require any consent, approval, authorization or permit of, or
    filing with or notification to, any governmental or regulatory authority or
    other person, except in connection with the HSR Act, the Exchange Act or
    the Communications Act, or (ii) conflict with or result in any breach or
    violation of any provision of any charter, by-law or agreement to which
    such stockholder is a party or by which it or he is bound.

                                        3

<PAGE>

    SECTION 2.2    REPRESENTATIONS AND WARRANTIES OF PRONET.  ProNet 
represents and warrants to each Stockholder as follows:

         (a)  this Agreement has been duly authorized by all necessary
    corporate action on the part of ProNet, has been duly executed by a duly
    authorized officer of ProNet, and constitutes a valid and binding agreement
    of ProNet enforceable against ProNet in accordance with its terms; and
    
         (b)  neither the execution and delivery of this Agreement by ProNet
    nor the consummation of the transactions contemplated hereby will (i)
    require any consent, approval, authorization or permit of, or filing with
    or notification to, any governmental or regulatory authority except in
    connection with the HSR Act, the Exchange Act or the Communications Act, or
    (ii) conflict with the Certificate of Incorporation or By-laws of ProNet or
    any material agreement to which it is a party or by which it is bound.

    SECTION 2.3    WAIVERS OF APPRAISAL RIGHTS.  Each Stockholder hereby
irrevocably waives any appraisal rights such Stockholder may have pursuant to
Section 262 of Delaware Law by reason of the Merger and agrees that such
Stockholder shall not attempt to perfect any such appraisal right pursuant to
such Section 262.

    SECTION 2.4    FURTHER ASSURANCES.  Each party hereto shall execute and 
deliver such additional instruments and other documents and shall take such 
further actions as may be necessary or appropriate to effectuate, carry out 
and comply with all of such party's obligations under this Agreement, 
including without limitation any actions reasonably requested by ProNet in 
connection with obtaining any required consents or approvals to the actions 
contemplated hereby under the HSR Act, the Exchange Act or the Communications 
Act.  Without limiting the generality of the foregoing, none of the parties 
hereto shall enter into any agreement or arrangement (or alter, amend or 
terminate any existing agreement or arrangement) if such action would 
materially impair the ability of any party to effectuate, carry out or comply 
with all of the terms of this Agreement.

                                     ARTICLE III

                                       GENERAL

    SECTION 3.1    EFFECTIVENESS; EXPIRATION.  The performance of the 
obligations of the parties contained herein shall be subject to the prior 
receipt of any required consent or approval under the Communications Act or 
the HSR Act, except for the obligations set forth in Section 1.3 (other than 
clause (b) thereof) and Section 2.4 hereof which Sections shall be effective 
upon the execution of this Agreement. 

    SECTION 3.2    NOTICES. All notices and other communications given or 
made pursuant hereto shall be in writing and shall be deemed to have been 
duly given upon receipt, if delivered personally, mailed by, nationally 
recognized overnight courier service, registered or certified mail (postage 
prepaid, return receipt requested) to the parties at the following addresses 
(or at such other address for a party as shall be specified by like changes 
of address) or sent by electronic transmission to the telecopier number 
specified below:


                                        4

<PAGE>

         (a)  If to either of the ProNet Companies, to:

              ProNet Inc.
              6340 LBJ Freeway
              Dallas, Texas  75240
              Attention:  Chief Executive Officer
              Telecopier No.:  (214)  774-0651

         with a copy to:

              Vinson & Elkins L.L.P.
              3700 Trammell Crow Center
              2001 Ross Avenue
              Dallas, Texas  75201-2975
              Attention:  Jeffrey A. Chapman
              Telecopier No.: (214) 220-7716

         (b)  If to the Stockholders, to the address set forth opposite such
              Stockholder's name on the signature pages hereto:

         with a copy to:

              Kirkland & Ellis
              200 East Randolph Drive
              Chicago, Illinois  60601
              Attention:  William S. Kirsch, P.C.
              Telecopier No.: (312) 861-2200

    SECTION 3.3    AMENDMENTS.  This Agreement may not be amended, changed, 
supplemented, waived or otherwise modified or terminated except by an 
instrument in writing signed by ProNet and each Stockholder.

    SECTION 3.4    SUCCESSORS AND ASSIGNS.  Subject in all respects to 
Section 3.1 hereof, this Agreement shall be binding upon and shall inure to 
the benefit of and be enforceable by the parties hereto and their respective 
successors and assigns, including without limitation in the case of any 
corporate party hereto any corporate successor by merger or otherwise, and in 
the case of any individual party hereto any trustee, executor, heir, legatee 
or personal representative succeeding to the ownership of such party's shares 
of Company Common Stock, Company Series A Preferred Stock, Company Series B 
Preferred Stock or other securities subject to this Agreement.  
Notwithstanding any transfer of such shares, the transferor shall remain 
liable for the performance of all obligations of the transferor under this 
Agreement.

    SECTION 3.5    ENTIRE AGREEMENT.  This Agreement embodies the entire 
Agreement and understanding among the parties hereto relating to the subject 
matter hereof and supersedes all prior agreements and understandings relating 
to such subject matter.  There are no representations, 


                                        5

<PAGE>

warranties or covenants by the parties hereto relating to such subject matter 
other than those expressly set forth in this Agreement.

    SECTION 3.6    SEVERABILITY. If any term or other provision of this 
Agreement is invalid, illegal or incapable of being enforced by any rule of 
law or public policy, all other conditions and provisions of this Agreement 
shall nevertheless remain in full force and effect so long as the economic or 
legal substance of the transactions contemplated hereby is not affected in 
any manner materially adverse to any party.  Upon such determination that any 
term or other provision is invalid, illegal or incapable of being enforced, 
the parties hereto shall negotiate in good faith to modify this Agreement so 
as to effect the original intent of the parties as closely as possible in an 
acceptable manner to the end that transactions contemplated hereby are 
fulfilled to the extent possible.

    SECTION 3.7    SPECIFIC PERFORMANCE. The parties hereby acknowledge and 
agree that the failure of any party to this Agreement to perform such party's 
agreement and covenants hereunder will cause irreparable injury to the other 
parties to this Agreement for which damages, even if available, will not be 
an adequate remedy.  Accordingly, each of the parties hereto hereby consents 
to the issuance of injunctive relief by any court of competent jurisdiction 
to compel performance of any party's obligations and to the granting by any 
such court of the remedy of specific performance of such party's obligations 
hereunder.

    SECTION 3.8    FAILURE OR INDULGENCE NOT WAIVER; REMEDIES CUMULATIVE.  No 
failure or delay on the part of any party hereto in the exercise of any right 
hereunder shall impair such right or be construed to be a waiver of, or 
acquiescence in, any breach of any representation, warranty or agreement 
herein, nor shall any single or partial exercise of any such right preclude 
other or further exercise thereof or of any other right.  All rights and 
remedies existing under this Agreement are in addition to, and not exclusive 
of, any rights or remedies otherwise available.

    SECTION 3.9    NO THIRD PARTY BENEFICIARIES.  This Agreement is not 
intended to be for the benefit of and shall not be enforceable by any person 
or entity who or which is not a party hereto.

    SECTION 3.10   GOVERNING LAW.  This Agreement and all disputes hereunder 
shall be governed by and construed and enforced in accordance with the laws 
of the State of Delaware.

    SECTION 3.11   HEADINGS. The headings contained in this Agreement are for 
reference purposes only and shall not affect in any way the meaning or 
interpretation of this Agreement.

    SECTION 3.12   COUNTERPARTS. This Agreement may be executed in multiple 
counterparts, and by the different parties hereto in separate counterparts, 
each of which when executed shall be deemed to be an original but all of 
which taken together shall constitute one and the same agreement.

    SECTION 3.13   EXPENSES.  ProNet and each Stockholder shall bear their 
own expenses incurred in connection with this Agreement and the transactions 
contemplated hereby.


                                        6

<PAGE>

    SECTION 3.14   CAPACITY.  The parties hereto acknowledge and agree that 
the obligations of McMurrey and G. David Higginbotham hereunder are 
obligations of such Stockholders in their respective capacities as 
stockholders of the Company and shall not obligate such Stockholders with 
respect to actions to be taken by any of such Stockholders as a director or 
officer of the Company.

    SECTION 3.15   TERMINATION.  This Agreement shall terminate upon 
termination of the Merger Agreement. 

                                        7

<PAGE>


    IN WITNESS WHEREOF, the parties have duly executed this Agreement as of 
the date first above written.

                             PRONET INC.


                             By: /s/ Jackie R. Kimzey
                             Name:   Jackie R. Kimzey
                             Title:  Chairman and Chief Executive Officer


                                       8

<PAGE>
                                STOCKHOLDERS:


                                         CONTINENTAL ILLINOIS VENTURE
                                         CORPORATION                 
                                                                     

Address: 231 S. LaSalle St.              By: /s/ Marcus Wedner    
         Chicago, IL 60697               Name:   Marcus Wedner    
         Attn: Marcus D. Wedner          Its:  Managing Director  
         Telecopier No.: (312) 987-0887  


                                         CIVC PARTNERS I 


Address: 231 S. LaSalle St.              By: /s/ Marcus Wedner                 
         Chicago, IL 60697               Name:   Marcus Wedner                 
         Attn: Marcus D. Wedner          Its:  General Partner                 
         Telecopier No.: (312) 987-0887                                        
                                                                               

                                         RAINBOW RESOURCES, INC.               
                                                                               
                                                                               
Address: c/o Robert M. McMurrey          By: /s/ Robert M. McMurrey            
         4034 Piping Rock                Name:   Robert M. McMurrey            
         Houston, Texas 77027            Its:  President                       
         Telecopier No.: (713) 877-1935  


                                         GM HOLDINGS, LLC


Address: ______________________________ By:  ______________________________ 
         ______________________________ Name:______________________________ 
         ______________________________ Its: ______________________________ 
         Telecopier No.:_______________ 


Address: 4034 Piping Rock                /s/ Robert M. McMurrey
         Houston, Texas 77027                Robert M. McMurrey
         Telecopier No.: (713) 877-1935  

                                       9

<PAGE>
                                STOCKHOLDERS:


                                         CONTINENTAL ILLINOIS VENTURE
                                         CORPORATION                 
                                                                     

Address: ______________________________ By:  ______________________________ 
         ______________________________ Name:______________________________ 
         ______________________________ Its: ______________________________ 
         Telecopier No.:_______________ 


                                         CIVC PARTNERS I 


Address: ______________________________ By:  ______________________________ 
         ______________________________ Name:______________________________ 
         ______________________________ Its: ______________________________ 
         Telecopier No.:_______________ 
                                                                               

                                         RAINBOW RESOURCES, INC.               
                                                                               
                                                                               
Address: ______________________________ By:  ______________________________ 
         ______________________________ Name:______________________________ 
         ______________________________ Its: ______________________________ 
         Telecopier No.:_______________ 


                                         GM HOLDINGS, LLC


Address: 201 Fourth Ave. No.            By:  /s/ Carl Grimstad
         Nashville, TN 37219            Name:    Carl Grimstad
         Telecopier No.: 615-244-7646   Its: Manager


Address: ______________________________ ___________________________________ 
         ______________________________ Robert M. McMurrey
         ______________________________ 
         Telecopier No.:_______________ 

                                       9

<PAGE>

Address: 3122 Oleander Street           /s/ G. David Higginbotham
         Tyler, Texas 75707                 G. David Higginbotham
         Telecopier No.: (903) 561-7832

                                       10

<PAGE>

                               SPOUSAL CONSENT


    By executing this Agreement, Dianne Higginbotham, G. David Higginbotham's 
spouse agrees (i) to be bound in all respects by the terms hereof with 
respect to the Company Shares to the same extent as G. David Higginbotham and 
(ii) to bind her community property interest, if any, in such Company Shares.


                                       /s/ Dianne Higginbotham




<PAGE>

                                      SCHEDULE I

<TABLE>
<CAPTION>
                                                        Company                     Company
                                          Company       Company       Company       Series B  
                             Company     Series A      Series B        Common       Preferred 
                             Common      Preferred     Preferred       Stock          Stock   
                              Stock        Stock         Stock        Warrants      Warrants  
                             -------     ---------     ---------      --------      --------- 
<S>                          <C>         <C>           <C>            <C>           <C>       
CIVC                              --        11,818            --     3,991,260        486,259 

CIVC Partners I              443,473         1,313        54,029            --             -- 

GM Holdings, L.L.C.          607,914         1,800            --            --         74,063

Rainbow Resources, Inc.    1,800,000            --            --            --             --

Robert M. McMurrey                --            --            --            --             --

G. David Higginbotham        450,000            --            --            --             --
                           ---------        ------        ------     ---------        -------
                           3,301,387        14,931        54,029     3,991,260        560,322
                           ---------        ------        ------     ---------        -------
                           ---------        ------        ------     ---------        -------
</TABLE>

                                       12




<PAGE>



                             AGREEMENT AND PLAN OF MERGER


                                     BY AND AMONG



                                     PRONET INC.,



                                PRONET SUBSIDIARY, INC.


                                         AND


                            TELETOUCH COMMUNICATIONS, INC.






                              DATED AS OF APRIL 15, 1996 





<PAGE>

                                  TABLE OF CONTENTS
                                                                        PAGE 
                                                                        ---- 

ARTICLE I.    THE MERGER................................................   1 
      SECTION 1.01.  The Merger.........................................   1 
      SECTION 1.02.  The Closing........................................   2 
      SECTION 1.03.  Effective Time.....................................   2 
      SECTION 1.04.  Effect of the Merger...............................   2 
      SECTION 1.05.  Certificate of Incorporation; Bylaws...............   2 
      SECTION 1.06.  Directors and Officers.............................   2 

ARTICLE II.   CONVERSION OF SECURITIES; EXCHANGE OF CERTIFICATES........   2 
      SECTION 2.01.  Merger Consideration; Conversion and Cancellation 
                      of Securities.....................................   2 
      SECTION 2.02.  Payment for Company Common Stock; Surrender of 
                      Certificates......................................   5 
      SECTION 2.03.  Stock Transfer Books...............................   8 
      SECTION 2.04.  Dissenters' Rights.................................   8 

ARTICLE III.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY.............   9 
      SECTION 3.01.  Organization and Qualification; Subsidiaries.......   9 
      SECTION 3.02.  Certificate of Incorporation and Bylaws............   9 
      SECTION 3.03.  Capitalization.....................................  10 
      SECTION 3.04.  Authority..........................................  12 
      SECTION 3.05.  No Conflict; Required Filings and Consents.........  12 
      SECTION 3.06.  Permits; Compliance................................  13 
      SECTION 3.07.  Reports; Financial Statements......................  14 
      SECTION 3.08.  Absence of Certain Changes or Events...............  15 
      SECTION 3.09.  Absence of Litigation..............................  16 
      SECTION 3.10.  Employee Benefit Plans; Labor Matters..............  16 
      SECTION 3.11.  Taxes..............................................  17 
      SECTION 3.12.  Affiliates.........................................  18 
      SECTION 3.13.  Certain Business Practices.........................  18 
      SECTION 3.14.  Properties.........................................  18 
      SECTION 3.15.  Intellectual Rights................................  19 
      SECTION 3.16.  Pagers.............................................  19 
      SECTION 3.17.  Insider Interests..................................  19 
      SECTION 3.18.  Contracts and Agreements...........................  19 
      SECTION 3.19.  Vote Required......................................  20 
      SECTION 3.20.  Brokers............................................  20 
      SECTION 3.21.  Opinion of Financial Advisor.......................  20 

ARTICLE IV.   REPRESENTATIONS AND WARRANTIES OF THE PRONET COMPANIES....  20 
      SECTION 4.01.  Organization and Qualification; Subsidiaries.......  20 


                                       -i- 

<PAGE>
                                                                        PAGE 
                                                                        ---- 
     SECTION 4.02.   Certificate of Incorporation and Bylaws............  21 
     SECTION 4.03.   Capitalization.....................................  21 
     SECTION 4.04.   Authority..........................................  23 
     SECTION 4.05.   No Conflict; Required Filings and Consents.........  23 
     SECTION 4.06.   Permits; Compliance................................  24 
     SECTION 4.07.   Reports; Financial Statements......................  25 
     SECTION 4.08.   Absence of Certain Changes or Events...............  26 
     SECTION 4.09.   Absence of Litigation..............................  26 
     SECTION 4.10.   Employee Benefit Plans; Labor Matters..............  26 
     SECTION 4.11.   Taxes..............................................  27 
     SECTION 4.12.   Properties.........................................  28 
     SECTION 4.13.   Pagers.............................................  29 
     SECTION 4.14.   Vote Required......................................  29 
     SECTION 4.15.   Brokers............................................  29 
     SECTION 4.16.   Opinion of Financial Advisor.......................  29 

ARTICLE V.   COVENANTS..................................................  29 
     SECTION 5.01.   Affirmative Covenants of the Company...............  29 
     SECTION 5.02.   Affirmative Covenants of ProNet....................  30 
     SECTION 5.03.   Negative Covenants of the Company..................  32 
     SECTION 5.04.   Negative Covenants of ProNet.......................  35 
     SECTION 5.05.   Access and Information.............................  36 

ARTICLE VI.  ADDITIONAL AGREEMENTS......................................  37 
     SECTION 6.01.   Presentation to Stockholders.......................  37 
     SECTION 6.02.   Registration Statement; Proxy Statement/Prospectus.  38 
     SECTION 6.03.   Appropriate Action; Consents; Filings..............  39 
     SECTION 6.04.   Affiliates; Tax Treatment..........................  41 
     SECTION 6.05.   Public Announcements...............................  41 
     SECTION 6.06.   NASDAQ Listing.....................................  41 
     SECTION 6.07.   State Takeover Statutes............................  41 
     SECTION 6.08.   Assumption of Obligations to Issue Stock...........  42 
     SECTION 6.09.   Merger Sub.........................................  43 
     SECTION 6.10.   Indemnification and Insurance......................  43 
     SECTION 6.11.   Comfort Letters....................................  46 

ARTICLE VII. CLOSING CONDITIONS.........................................  47 
     SECTION 7.01.   Conditions to Obligations of Each Party Under 
                      This Agreement....................................  47 
     SECTION 7.02.   Additional Conditions to Obligations of the 
                      ProNet Companies..................................  48 
     SECTION 7.03.   Additional Conditions to Obligations of the 
                      Company...........................................  48 

ARTICLE VIII. TERMINATION, AMENDMENT AND WAIVER.........................  49 
     SECTION 8.01.   Termination........................................  49 
     SECTION 8.02.   Effect of Termination..............................  52 
     SECTION 8.03.   Amendment..........................................  52 

                                       -ii- 

<PAGE>

                                                                        PAGE 
                                                                        ---- 
     SECTION 8.04.   Waiver.............................................  52 
     SECTION 8.05.   Fees, Expenses and Other Payments..................  52 

ARTICLE IX.  GENERAL PROVISIONS.........................................  54 
     SECTION 9.01.   Effectiveness of Representations, Warranties 
                      and Agreements....................................  54 
     SECTION 9.02.   Notices............................................  55 
     SECTION 9.03.   Certain Definitions................................  56 
     SECTION 9.04.   Headings...........................................  57 
     SECTION 9.05.   Severability.......................................  57 
     SECTION 9.06.   Entire Agreement...................................  58 
     SECTION 9.07.   Assignment.........................................  58 
     SECTION 9.08.   Parties in Interest................................  58 
     SECTION 9.09.   Failure or Indulgence Not Waiver; Remedies 
                      Cumulative........................................  58 
     SECTION 9.10.   Governing Law......................................  58 
     SECTION 9.11.   Counterparts.......................................  58 
     SECTION 9.12.   Specific Performance...............................  58 

EXHIBITS

     Exhibit A       Form of Company Affiliate Letter














                                       -iii- 

<PAGE>

                            AGREEMENT AND PLAN OF MERGER

    THIS AGREEMENT AND PLAN OF MERGER, dated as of April 15, 1996 (this 
"AGREEMENT"), is by and among PRONET INC., a Delaware corporation ("PRONET"), 
PRONET SUBSIDIARY, INC., a Delaware corporation and direct wholly owned 
subsidiary of ProNet ("MERGER SUB"), and TELETOUCH COMMUNICATIONS, INC., a 
Delaware corporation (the "COMPANY"). ProNet and Merger Sub are sometimes 
collectively referred to herein as the "PRONET COMPANIES."

    WHEREAS, the Company, upon the terms and subject to the conditions of 
this Agreement and in accordance with the General Corporation Law of the 
State of Delaware ("DELAWARE LAW"), will merge with and into Merger Sub (the 
"MERGER");

    WHEREAS, the Board of Directors of the Company has determined that the 
Merger is consistent with and in furtherance of the long-term business 
strategy of the Company and is fair to, and in the best interests of, the 
Company and its stockholders, has approved and adopted this Agreement and the 
transactions contemplated hereby, and has recommended approval and adoption 
of this Agreement by the stockholders of the Company;

    WHEREAS, the Board of Directors of ProNet has determined that the Merger 
is consistent with and in furtherance of the long-term business strategy of 
ProNet and is fair to, and in the best interests of, ProNet and its 
stockholders, has approved and adopted this Agreement and the transactions 
contemplated hereby, and has recommended approval and adoption of this 
Agreement by the stockholders of ProNet;

    WHEREAS, the Board of Directors of Merger Sub has approved and adopted 
this Agreement and the transactions contemplated hereby, and has recommended 
approval and adoption of this Agreement by its stockholder; and

    WHEREAS, for federal income tax purposes, it is intended that the Merger 
will qualify as a reorganization under the provisions of Section 368(a) of 
the United States Internal Revenue Code of 1986, as amended (the "CODE").

    NOW, THEREFORE, in consideration of the foregoing and the respective 
representations, warranties, covenants and agreements set forth in this 
Agreement, the parties hereto agree as follows:

                                  ARTICLE I.

                                  THE MERGER

    SECTION 1.01.  THE MERGER.  Upon the terms and subject to the conditions 
set forth in this Agreement, and in accordance with Delaware Law, at the 
Effective Time (as defined in Section 1.03 of this Agreement), the Company 
shall be merged with and into Merger Sub.  As a result of the Merger, the 
separate corporate existence of the Company shall cease and Merger Sub shall 
continue as the surviving corporation of the Merger (the "SURVIVING 
CORPORATION").  The name of the Surviving Corporation shall be "TELETOUCH 
COMMUNICATIONS, INC."

<PAGE>

    SECTION 1.02.  THE CLOSING.  Subject to the terms and conditions of this 
Agreement, the closing of the Merger (the "CLOSING") shall take place (a) at 
the offices of Vinson & Elkins L.L.P., 3700 Trammell Crow Center, 2001 Ross 
Avenue, Dallas, Texas, at 9:00 a.m., local time, on the second business day 
immediately following the day on which the last to be fulfilled or waived of 
the conditions set forth in Article VII shall be fulfilled or waived in 
accordance herewith (other than conditions with respect to actions the 
respective parties hereto will take at the Closing), subject to the 
provisions of Section 8.01(i) hereof, or (b) at such other time, date or 
place as ProNet and the Company may agree. The date on which the Closing 
occurs is hereinafter referred to as the "CLOSING DATE."

    SECTION 1.03.  EFFECTIVE TIME.  As promptly as practicable after the 
satisfaction or, if permissible, waiver of the conditions set forth in 
Article VII of this Agreement, the parties hereto shall cause the Merger to 
be consummated by filing a Certificate of Merger with the Secretary of State 
of the State of Delaware, in such form as is required by, and executed in 
accordance with the relevant provisions of, Delaware Law (the date and time 
of the completion of such filing being the "EFFECTIVE TIME").

    SECTION 1.04.  EFFECT OF THE MERGER.  At the Effective Time, the effect 
of the Merger shall be as provided in the applicable provisions of Delaware 
Law. Without limiting the generality of the foregoing, and subject thereto, 
at the Effective Time all the property, rights, privileges, powers and 
franchises of Merger Sub and the Company shall vest in the Surviving 
Corporation, and all debts, obligations, liabilities and duties of each of 
Merger Sub and the Company shall become the debts, obligations, liabilities 
and duties of the Surviving Corporation.

    SECTION 1.05.  CERTIFICATE OF INCORPORATION; BYLAWS.  At the Effective 
Time, the Certificate of Incorporation and the Bylaws of Merger Sub, as in 
effect immediately prior to the Effective Time, shall be the Certificate of 
Incorporation and the Bylaws of the Surviving Corporation.

    SECTION 1.06.  DIRECTORS AND OFFICERS.  The directors of Merger Sub 
immediately prior to the Effective Time shall be the directors of the 
Surviving Corporation, each to hold office in accordance with the Certificate 
of Incorporation and Bylaws of the Surviving Corporation, and the officers of 
Merger Sub immediately prior to the Effective Time shall be the officers of 
the Surviving Corporation, in each case until their respective successors are 
duly elected or appointed and qualified.

                                 ARTICLE II.

              CONVERSION OF SECURITIES; EXCHANGE OF CERTIFICATES

    SECTION 2.01.  MERGER CONSIDERATION; CONVERSION AND CANCELLATION OF 
SECURITIES.  At the Effective Time, by virtue of the Merger and without any 
action on the part of the ProNet Companies, the Company or the holders of any 
of the Company's securities:


                                       2 

<PAGE>

         (a)  Subject to the other provisions of this Article II, each share 
    of common stock, par value $.001 per share, of the Company ("COMPANY COMMON
    STOCK") issued and outstanding immediately prior to the Effective Time
    (excluding any Company Common Stock described in Section 2.01(g) of this
    Agreement) and held of record or beneficially by the entities and 
    individuals listed on Annex A attached hereto (the "AFFILIATED 
    STOCKHOLDERS") shall be converted into the right to receive that fraction
    of one fully paid and nonassessable share of common stock, par value $.01
    per share, of ProNet ("PRONET COMMON STOCK") equal to the quotient obtained
    by dividing $5.00 by the Average Closing Price (as hereinafter defined)
    (such quotient referred to herein as the "AFFILIATED STOCKHOLDER COMMON
    STOCK EXCHANGE RATIO"); PROVIDED, HOWEVER, that if the Average Closing
    Price is greater than $26.94, then the Affiliated Stockholder Common Stock
    Exchange Ratio shall be 0.1856; PROVIDED FURTHER, that if the Average
    Closing Price is less than $24.37 then the Affiliated Stockholder Common
    Stock Exchange Ratio shall be 0.20517; and PROVIDED FURTHER, that if ProNet
    exercises its Termination Blocking Option (as defined in Section 8.01(i)
    hereof), then the Affiliated Stockholder Common Stock Exchange Ratio shall
    be determined as provided in Section 8.01(i) hereof. "AVERAGE CLOSING
    PRICE" means the average closing transaction price of the ProNet Common
    Stock on The Nasdaq Stock Market (or such other quotation system or
    securities exchange on which the ProNet Common Stock is then quoted or
    listed) as reported by the Wall Street Journal for the 20 consecutive
    trading days beginning 22 trading days prior to the scheduled Closing Date
    as provided in Section 1.02 hereof.  Holders of the shares of ProNet Common
    Stock issued in the Merger shall also have the right to receive for each
    share of ProNet Common Stock so issued one associated Series A Junior
    Participating Preferred Stock purchase right (a "RIGHT") in accordance with
    the Rights Agreement, dated as of April 5, 1995, between ProNet and
    Chemical Shareholder Services Group, Inc.  References herein to the shares
    of ProNet Common Stock issuable in the Merger shall be deemed to include
    the associated Rights.

         (b)  Subject to the other provisions of this Article II, each share of
    Company Common Stock (excluding any Company Common Stock described in
    Section 2.01(g) of this Agreement), other than shares of Company Common
    Stock held of record or beneficially by the Affiliated Stockholders, issued
    and outstanding immediately prior to the Effective Time shall be converted
    into that number of shares of ProNet Common Stock equal to the greater of
    (i) the number of shares of ProNet Common Stock payable to the Affiliated
    Stockholders for each share of Company Common Stock under Section 2.01(a)
    hereof and (ii) that fraction of one fully paid and nonassessable share of
    ProNet Common Stock equal to the quotient obtained by dividing $5.50 by the
    Average Closing Price (collectively, the "PUBLIC STOCKHOLDER COMMON STOCK
    EXCHANGE RATIO").

         (c)  Subject to the other provisions of this Article II, each share of
    Series A 14% Cumulative Preferred Stock, par value $.001 per share, of the
    Company ("COMPANY SERIES A PREFERRED STOCK") issued and outstanding
    immediately prior to the Effective Time (excluding any Company Series A
    Preferred Stock described in Section 2.01(g) of this Agreement and any
    Dissenting Shares as defined in Section 2.04 of this Agreement) shall be
    converted into the right to receive cash in the amount of $1,000 per share
    plus all accrued 

                                       3 

<PAGE>

    but unpaid dividends on such share as of July 31, 1996 (the "SERIES A 
    PREFERRED STOCK CONSIDERATION"), without any interest thereon.

         (d)  Subject to the other provisions of this Article II, each share of
    Series B  Preferred Stock, par value $.001 per share, of the Company
    ("COMPANY SERIES B PREFERRED STOCK") issued and outstanding immediately
    prior to the Effective Time (excluding any Company Series B Preferred Stock
    described in Section 2.01(g) of this Agreement and any Dissenting Shares)
    shall be converted into the right to receive that number of fully paid and
    nonassessable shares of ProNet Common Stock equal to six times the number
    of shares of ProNet Common Stock issuable upon the conversion of a share of
    Company Common Stock as provided in Section 2.01(a) of this Agreement (the
    "SERIES B PREFERRED STOCK EXCHANGE RATIO").

         (e)  Notwithstanding the foregoing, if between the date of this
    Agreement and the Effective Time the outstanding shares of ProNet Common
    Stock, Company Common Stock, Company Series A Preferred Stock or Company
    Series B Preferred Stock shall have been changed into a different number of
    shares or a different class, by reason of any stock dividend, subdivision,
    reclassification, recapitalization, split, combination or exchange of
    shares, the Affiliated Stockholder Common Stock Exchange Ratio, the Public
    Stockholder Common Stock Exchange Ratio, the Series A Preferred Stock
    Consideration and the Series B Preferred Stock Exchange Ratio shall be
    correspondingly adjusted to reflect such stock dividend, subdivision,
    reclassification, recapitalization, split, combination or exchange of
    shares.

         (f)  As a result of their conversion pursuant to subsections 2.01(a),
    (b), (c) and (d) all shares of Company Common Stock, Company Series A
    Preferred Stock and Company Series B Preferred Stock shall cease to be
    outstanding and shall automatically be canceled and retired.  Each
    certificate previously evidencing Company Common Stock outstanding
    immediately prior to the Effective Time (other than Company Common Stock
    described in Section 2.01(g) of this Agreement) ("CONVERTED COMMON SHARES")
    shall thereafter represent, subject to Section 2.02(d) of this Agreement,
    the right to receive that number of shares of ProNet Common Stock
    determined pursuant to the Affiliated Stockholder Common Stock Exchange
    Ratio or the Public Stockholder Common Stock Exchange Ratio, as applicable,
    and, if applicable, the right to receive cash pursuant to Section 2.02(d)
    of this Agreement (the "AFFILIATED STOCKHOLDER COMMON STOCK CONSIDERATION"
    and the "PUBLIC STOCKHOLDER COMMON STOCKHOLDER CONSIDERATION,"
    respectively, and together, the "COMMON STOCK CONSIDERATION" and, together
    with the Series A Preferred Stock Consideration and the Series B Preferred
    Stock Consideration (as hereinafter defined), the "MERGER CONSIDERATION"). 
    Each certificate previously evidencing Company Series A Preferred Stock
    outstanding immediately prior to the Effective Time (other than Company 
    Series A Preferred Stock described in Section 2.01(g) of this Agreement and
    any Dissenting Shares) (the "CONVERTED SERIES A PREFERRED SHARES") shall
    thereafter represent the right to receive cash in an amount equal to the
    product obtained by multiplying the number of shares of Company Series A
    Preferred Stock represented by such certificate by the Series A Preferred
    Stock Consideration.  Each certificate previously evidencing Company Series
    B Preferred Stock outstanding 

                                       4 

<PAGE>



    immediately prior to the Effective Time (other than Company Series B 
    Preferred Stock described in Section 2.01(g) of this Agreement and any
    Dissenting Shares) (the "CONVERTED SERIES B PREFERRED SHARES" and, 
    together with the Converted Common Shares and the Converted Series A 
    Preferred Shares, the "CONVERTED SHARES") shall thereafter represent, 
    subject to Section 2.02(d) of this Agreement, the right to receive that
    number of shares of ProNet Common Stock determined pursuant to the 
    Series B Preferred Stock Exchange Ratio and, if applicable, the right 
    to receive cash pursuant to Section 2.02(d) of this Agreement
    (the "SERIES B PREFERRED STOCK CONSIDERATION").  The holders of
    certificates previously evidencing Converted Shares shall cease to have any
    rights with respect to such Converted Shares except the right to receive
    the Merger Consideration applicable thereto and as otherwise provided
    herein or by law.  Such certificates previously evidencing Converted Common
    Shares or Converted Series B Preferred Shares shall be exchanged for
    certificates evidencing whole shares of ProNet Common Stock, and
    certificates representing Converted Series A Preferred Shares shall be
    exchanged for cash, in each case upon the surrender of such certificates in
    accordance with the provisions of Section 2.02 of this Agreement.  No
    fractional shares of ProNet Common Stock shall be issued and, in lieu
    thereof, a cash payment shall be made pursuant to Section 2.02(d) of this
    Agreement. 

         (g)  Notwithstanding any provision of this Agreement to the contrary,
    each share of Company Common Stock, Company Series A Preferred Stock or
    Company Series B Preferred Stock held in the treasury of the Company and
    each share of Company Common Stock owned by ProNet or any direct or
    indirect wholly owned subsidiary of ProNet or of the Company immediately
    prior to the Effective Time shall be canceled and extinguished without any
    conversion thereof and no payment shall be made with respect thereto.

         (h)  Each share of common stock, par value $.01 per share, of Merger
    Sub issued and outstanding immediately prior to the Effective Time shall
    remain issued and outstanding.

    SECTION 2.02.  PAYMENT FOR COMPANY COMMON STOCK; SURRENDER OF CERTIFICATES.

         (a)  EXCHANGE FUND.  At or prior to the Effective Time, ProNet shall
    deposit, or cause to be deposited, with a bank or trust company designated
    by ProNet (the "EXCHANGE AGENT"), for the benefit of the holders of
    Converted Shares, for exchange in accordance with this Article II, through
    the Exchange Agent, (i) certificates evidencing a number of shares of
    ProNet Common Stock equal to the product of the Affiliated Stockholder
    Common Stock Exchange Ratio multiplied by the number of Converted Common
    Shares held of record or beneficially by the Affiliated Stockholders, (ii)
    certificates evidencing a number of shares of ProNet Common Stock equal to
    the product of the Public Stockholder Common Stock Exchange Ratio
    multiplied by the number of Converted Common Shares held of record or
    beneficially by stockholders other than the Affiliated Stockholders,
    (iii) certificates evidencing a number of shares of ProNet Common Stock
    equal to the product of Series B Preferred Stock Exchange Ratio multiplied
    by the number of Converted Series B Preferred Shares, (iv) cash in an
    amount equal to the product of the Series A Preferred Stock Consideration
    multiplied by the number of Converted Series A Preferred Shares, and
    (v) cash in an amount sufficient to provide for the payments to be made in
    lieu of issuing any 

                                       5 

<PAGE>

    fractional shares of ProNet Common Stock as provided in Section 2.02(d) 
    of this Agreement.  Additionally, subject to the provisions of subsection
    (e) of this Section 2.02, ProNet shall, if and when a payment date has 
    occurred with respect to a dividend or distribution that has been declared
    subsequent to the Effective Time, deposit with the Exchange Agent an amount
    in cash (or property of like kind to that which is the subject of such 
    dividend or distribution) equal to the dividend or distribution per share 
    of ProNet Common Stock times the number of shares of ProNet Common Stock 
    evidenced by certificates theretofore representing Converted Common Shares 
    and certificates theretofore representing Converted Series B Preferred 
    Shares that have not theretofore been surrendered for exchange in accordance
    with this Section 2.02.  The certificates and cash (and property, if any) 
    deposited with the Exchange Agent in accordance with this subsection 2.02(a)
    are hereinafter referred to as the "EXCHANGE FUND."  The Exchange Agent 
    shall, pursuant to irrevocable instructions, deliver ProNet Common Stock 
    (and any dividends or distribution related thereto) and/or cash, as 
    described above, in exchange for surrendered certificates pursuant to the 
    terms of this Agreement out of the Exchange Fund.

         (b)  EXCHANGE PROCEDURES.  As soon as practicable after the Effective
    Time, ProNet shall cause the Exchange Agent to send to each record holder
    of Company Common Stock, Company Series A Preferred Stock and Company
    Series B Preferred Stock at the Effective Time (i) a letter of transmittal
    (which shall specify that delivery shall be effected, and risk of loss and
    title to the certificates theretofore representing Company Common Stock,
    Company Series A Preferred Stock or Company Series B Preferred Stock
    (collectively, the "CERTIFICATES") shall pass, only upon delivery of the
    Certificates to the Exchange Agent and shall be in such form and contain
    such other provisions as ProNet and the Company shall reasonably
    determine), and (ii) instructions for use in effecting the surrender of the
    Certificates in exchange for, in the case of Certificates theretofore
    representing shares of Company Common Stock or Certificates theretofore
    representing shares of Company Series B Preferred Stock, certificates
    representing shares of ProNet Common Stock and, in the case of Certificates
    theretofore representing shares of Company Series A Preferred Stock, cash. 
    Upon surrender of a Certificate for cancellation to the Exchange Agent,
    together with such letter of transmittal, duly executed, the holder of such
    Certificate shall be entitled to receive in exchange therefor, in the case
    of Certificates theretofore representing shares of Company Common Stock or
    Company Series B Preferred Stock, as the case may be, a certificate
    representing that number of whole shares of ProNet Common Stock which such
    holder has the right to receive pursuant to the provisions of this Article
    II and, in the case of Certificates theretofore representing shares of
    Company Series A Preferred Stock, cash in the amount such holder has the
    right to receive pursuant to such provisions, and the Certificate so
    surrendered shall forthwith be canceled.  In the event of a transfer of
    ownership of Company Common Stock or Company Series B Preferred Stock which
    is not registered in the transfer records of the Company, a certificate
    evidencing the proper number of shares of ProNet Common Stock may be issued
    to the transferee if the certificate evidencing the Company Common Stock or
    Company Series B Preferred Stock, as the case may be, shall be surrendered
    to the Exchange Agent, accompanied by all documents required to evidence
    and effect such transfer and by evidence that any applicable stock transfer
    taxes have been paid.  Until surrendered for exchange in accordance with
    the provisions of Section 2.02 of this 

                                       6 

<PAGE>

    Agreement, each Certificate theretofore representing Converted Shares 
    (other than shares of Company Common Stock, Company Series A Preferred
    Stock or Company Series B Preferred Stock to be canceled pursuant to 
    Section 2.01(g) of this Agreement and any Dissenting Shares) shall from 
    and after the Effective Time represent for all purposes only the right 
    to receive the applicable Merger Consideration as set forth in this 
    Agreement.  If any holder of Converted Shares shall be unable to surrender
    such holder's Certificates because such Certificates have been lost or 
    destroyed, such holder may deliver in lieu thereof an affidavit and 
    indemnity bond in form and substance and with surety reasonably satisfactory
    to ProNet.  No interest shall be paid on any Merger Consideration payable to
    former holders of Converted Shares.

         (c)  DISTRIBUTIONS WITH RESPECT TO PRONET COMMON STOCK.  No dividends
    or other distributions declared or made after the Effective Time with
    respect to ProNet Common Stock with a record date after the Effective Time
    shall be paid to the holder of any unsurrendered certificate theretofore
    representing shares of Company Common Stock or shares of Company Series B
    Preferred Stock with respect to any shares of ProNet Common Stock evidenced
    thereby, and no Merger Consideration shall be paid to any such holders
    until the holder of such certificate shall surrender such certificate
    theretofore representing shares of Company Common Stock or shares of
    Company Series B Preferred Stock.  Subject to applicable laws, following
    surrender of any such certificate, there shall be paid to the holder of the
    certificates evidencing whole shares of ProNet Common Stock issued in
    exchange therefor, without interest, (i) promptly following the surrender
    of such certificate and in addition to the amount of any cash payable with
    respect to a fractional share of ProNet Common Stock to which such holder
    is entitled pursuant to Section 2.02(d) of this Agreement, the amount of
    dividends or other distributions with a record date after the Effective
    Time theretofore paid with respect to such whole shares of ProNet Common
    Stock and (ii) at the appropriate payment date, the  amount of dividends or
    other distributions with a record date after the Effective Time but prior
    to surrender and a payment date occurring after surrender payable with
    respect to such whole shares of ProNet Common Stock.

         (d)  NO FRACTIONAL SHARES.  No certificates or scrip evidencing
    fractional shares of ProNet Common Stock shall be issued upon the surrender
    for exchange of Certificates, and such fractional share interests shall not
    entitle the owner thereof to any rights of a stockholder of ProNet.  In
    lieu of any such fractional shares, (i) each holder of a Certificate
    previously evidencing Company Common Stock and each holder of a Certificate
    previously evidencing Company Series B Preferred Stock, upon surrender of
    such Certificate for exchange pursuant to this Article II, shall be paid an
    amount in cash (without interest), rounded to the nearest cent, determined
    by multiplying (A) the Average Closing Price by (B) the fractional interest
    to which such holder would otherwise be entitled (after taking into account
    all shares of Company Common Stock or Company Series B Preferred Stock held
    of record by such holder at the Effective Time).

         (e)  TERMINATION OF EXCHANGE FUND.  Any portion of the Exchange Fund
    that remains unclaimed by the former holders of Converted Shares on the
    first anniversary of the Closing Date shall be delivered to ProNet, upon
    demand, and any former holders of 

                                       7 

<PAGE>

    Converted Shares who have not theretofore complied with this Article II 
    shall thereafter look only to ProNet for the Merger Consideration and 
    dividends or distributions to which they are entitled, without any interest
    thereon.  Neither ProNet nor the Company shall be liable to any former 
    holder of Converted Shares for any Merger Consideration (or dividends or 
    distributions with respect thereto) or cash delivered to a public official
    pursuant to any applicable abandoned property, escheat or similar law.

         (f)  WITHHOLDING.  ProNet (or any affiliate thereof) shall be entitled
    to deduct and withhold from the consideration otherwise payable pursuant to
    this Agreement to any former holder of Converted Shares such amounts as
    ProNet (or any affiliate thereof) is required to deduct and withhold with
    respect to the making of such payment under the Code or any other provision
    of federal, state, local or foreign tax law and ProNet agrees to remit to
    the proper taxing authority such amounts so withheld.  To the extent that
    amounts are so withheld by ProNet, such withheld amounts shall be treated
    for all purposes of this Agreement as having been paid to the former holder
    of the Converted Shares in respect of which such deduction and withholding
    was made by ProNet.  ProNet shall, within a reasonable period of time prior
    to the Closing Date, inform the Company of its intent to deduct and
    withhold any amounts pursuant to this Section 2.02(f) and will cooperate
    with the Company in taking any actions necessary to avoid and/or minimize
    the amounts required to be deducted and withheld from the consideration
    payable pursuant to this Agreement.  ProNet agrees to promptly pay to the
    former holders of Converted Shares any refunded amounts received by ProNet
    that are attributable to such withholding.

    SECTION 2.03.  STOCK TRANSFER BOOKS.  At the Effective Time, the stock
transfer books of the Company shall be closed and there shall be no further
registration of transfers of shares of Company Common Stock, Company Series A
Preferred Stock or Company Series B Preferred Stock thereafter on the records of
the Company.  If, after the Effective Time, Certificates are presented to the
Surviving Corporation, they shall be canceled and exchanged for the Merger
Consideration, deliverable in respect thereof pursuant to this Agreement in
accordance with the procedures set forth in this Article II.  Certificates
surrendered for exchange by any person constituting an "AFFILIATE" of the
Company for purposes of Rule 145(c) under the Securities Act of 1933, as amended
(the "SECURITIES ACT"), shall not be exchanged until ProNet has received a
written agreement from such person as provided in Section 6.04.

    SECTION 2.04.  DISSENTERS' RIGHTS.  The holders of shares of ProNet Common
Stock shall not be entitled to appraisal rights.  Notwithstanding anything in
this Agreement to the contrary, each share of Company Series A Preferred Stock 
and Company Series B Preferred Stock issued and outstanding immediately prior to
the Effective Time and held by stockholders who have not voted such shares in
favor of the Merger or consented thereto in writing and qualify under and have
complied with all of the provisions of Section 262 of Delaware Law ("DISSENTING
SHARES") shall not, by virtue of the Merger, be converted into the right to
receive the Series A Preferred Stock Consideration or Series B Preferred Stock
Consideration but such stockholders shall be entitled to receive payment of the
appraised value of such shares of Company Series A Preferred Stock or Company
Series B Preferred Stock held by them in accordance with the provisions of
Section 262 of the Delaware Law;  provided, however, that if any holder of
Dissenting Shares (a) subsequently 

                                       8 

<PAGE>

delivers a written withdrawal of his demand for appraisal rights (with the 
written consent of ProNet if such written withdrawal is not made within 60 
days after the Effective Time), or (b) fails to perfect dissenter's rights as 
provided in Section 262 of Delaware Law, or (c) if neither any holder of 
Dissenting Shares nor the Surviving Corporation has filed a petition 
demanding a determination of the value of Dissenting Shares within the time 
provided in Section 262 of Delaware Law, the Dissenting Shares held by such 
holder or holders (as the case may be) shall thereupon be deemed to have been 
converted into and to have become exchangeable for, as of the Effective Time, 
the right to receive the Series A Preferred Stock Consideration or Series B 
Preferred Stock Consideration, as applicable, as provided in Section 2.01(c) 
or 2.01(d) of this Agreement, without any interest thereon.

                                ARTICLE III.

               REPRESENTATIONS AND WARRANTIES OF THE COMPANY

    The Company hereby represents and warrants to ProNet that:

    SECTION 3.01.  ORGANIZATION AND QUALIFICATION; SUBSIDIARIES.  The Company 
is a corporation, and each of the Company's subsidiaries (as such term in 
defined in Section 9.03 herein) is a corporation or partnership, duly 
organized, validly existing and in good standing under the laws of the 
jurisdiction of its incorporation or organization, and each of the Company 
and its subsidiaries has all requisite power and authority to own, lease and 
operate its properties and to conduct its business as it is now being 
conducted and, except as set forth in Section 3.01 of the Company Disclosure 
Schedule (as defined below), is qualified to do business and in good standing 
in each jurisdiction in which the nature of the business conducted by it or 
the ownership or leasing of its properties makes such qualification 
necessary, other than where the failure to be so qualified and in good 
standing could not reasonably be expected to have a Company Material Adverse 
Effect.  The term "COMPANY MATERIAL ADVERSE EFFECT" as used in this Agreement 
shall mean any change or effect that would be materially adverse to the 
financial condition, results of operations or business of the Company and its 
subsidiaries, taken as a whole, at the time of such change or effect. Section 
3.01 of the Disclosure Schedule delivered by the Company to the ProNet 
Companies concurrently with the execution of this Agreement (the "COMPANY 
DISCLOSURE SCHEDULE") sets forth, as of the date of this Agreement, a true 
and complete list of all the Company's directly or indirectly owned 
subsidiaries, together with (a) the jurisdiction of incorporation or 
organization of each such subsidiary and the percentage of each such 
subsidiary's outstanding capital stock or other equity interests owned by the 
Company or another subsidiary of the Company and (b) an indication of whether 
each such subsidiary is a "SIGNIFICANT SUBSIDIARY" as defined in Section 9.03 
of this Agreement.  

    SECTION 3.02.  CERTIFICATE OF INCORPORATION AND BYLAWS.  The Company has 
heretofore furnished or made available to ProNet complete and correct copies 
of the Certificate of Incorporation and the Bylaws or the equivalent 
organizational documents, in each case as amended or restated to the date 
hereof, of the Company and each of its subsidiaries.  Neither the Company nor 
any of its subsidiaries is in violation of any of the provisions of its 
Certificate of Incorporation or Bylaws (or equivalent organizational 
documents). 


                                       9 

<PAGE>

    SECTION 3.03.  CAPITALIZATION.

         (a)  The authorized capital stock of the Company consists of 
    25,000,000 shares of Company Common Stock and 5,000,000 shares of preferred
    stock, par value $.001 per share, of which the Company has designated
    15,000 shares as Series A 14% Cumulative Preferred Stock, 617,189 shares
    as Series B Preferred Stock, and the balance of which are undesignated. 
    At the close of business on March 31, 1996, 6,347,416 shares of Company
    Common Stock were issued and outstanding, no shares of Company Common Stock
    were held by the Company in its treasury or by the Company's subsidiaries
    and 15,655,109 shares of Company Common Stock were reserved for issuance as
    follows: (i) 400,000 shares were reserved for issuance upon exercise of
    stock options heretofore granted or available for grant pursuant to the
    Company's 1994 Stock Option and Appreciation Rights Plan (the "OPTION
    PLAN"); (ii) 7,266,260 shares were reserved for issuance upon the exercise
    of the warrants (the "COMMON STOCK WARRANTS") listed and described in
    Section 3.03(a) of the Company Disclosure Schedule; (iii) 3,708,134 shares
    were reserved for issuance upon exercise of the Series B Preferred Stock
    Warrants and conversion of the resulting and other shares of Company Series
    B Preferred Stock; and (iv) 4,285,715 shares were reserved for issuance
    upon conversion of the Company Series A Preferred Stock.  At the close of
    business on March 31, 1996, 15,000 shares of Company Series A Preferred
    Stock were issued and outstanding and no shares of Company Series A
    Preferred Stock were held by the Company in its treasury or by the
    Company's subsidiaries.  As of the close of business on March 31, 1996,
    130,930 shares of Company Series B Preferred Stock were issued and
    outstanding, no shares of Company Series B Preferred Stock were held by the
    Company in its treasury or by the Company's subsidiaries and 486,259 shares
    of Company Series B Preferred Stock were reserved for issuance upon the
    exercise of the Series B Preferred Stock Warrants (HEREIN SO CALLED). 
    Except as described in this Section 3.03 or in Section 3.03(a) of the
    Company Disclosure Schedule, no shares of capital stock of the Company are
    issued and outstanding or reserved for issuance for any other purpose. 
    Since March 31, 1996, no shares of capital stock have been issued by the
    Company or any of its subsidiaries except pursuant to agreements for which
    shares were adequately reserved at such date as described in this
    subsection (a).  Since March 31, 1996, neither the Company nor any of its
    subsidiaries has granted any options for, or other rights to purchase, any
    shares of capital stock of the Company or any of its subsidiaries.  Each of
    the issued shares of capital stock of each of the Company and its
    subsidiaries is duly authorized, validly issued and  fully paid and
    nonassessable, and has not been issued in violation of (nor are any of the
    authorized shares of capital stock of, or other equity interests in,  the
    Company or any of its subsidiaries subject to) any preemptive or similar
    rights created by statute, the Certificate of Incorporation or Bylaws (or
    the equivalent organizational documents) of the Company or any of its
    subsidiaries, or any agreement to which the Company or any of its
    subsidiaries is a party or is bound.  Except as set forth in
    Section 3.03(a) of the Company Disclosure Schedule, all issued shares or
    other equity interests in the subsidiaries of the Company owned by the
    Company or a subsidiary of the Company are owned free and clear of all
    security interests, liens, claims, pledges, agreements, limitations on the
    Company's or such subsidiaries' voting rights, charges or other
    encumbrances of any nature whatsoever.

                                        10

<PAGE>

         (b)  No bonds, debentures, notes or other indebtedness of the Company
    or its subsidiaries having the right to vote (or convertible into or
    exchangeable or exercisable for securities having the right to vote) on any
    matters on which stockholders may vote ("COMPANY VOTING DEBT") are issued
    or outstanding.  All shares of Company Common Stock which may be issued
    upon exercise of stock options granted pursuant to the Option Plans or
    Common Stock Warrants and all shares of Company Series B Preferred Stock
    which may be issued upon the exercise of the Series B Preferred Stock
    Warrants will, when issued in accordance with the terms of such stock
    options, warrants and the related Option Plans, be validly issued, fully
    paid and nonassessable and not subject to preemptive rights.

         (c)  Except as set forth in Section 3.03(a) above or in Section
    3.03(c) of the Company Disclosure Schedule, there are no options, warrants
    or other rights (including registration rights), agreements, arrangements
    or commitments of any character to which the Company or any of its
    subsidiaries is a party relating to the issued or unissued capital stock of
    the Company or any of its subsidiaries or obligating the Company or any of
    its subsidiaries to grant, issue or sell any shares of capital stock,
    Company Voting Debt or other equity interests of the Company or any of its
    subsidiaries.  Except as set forth in Section 3.03(c) of the Company
    Disclosure Schedule, there are no obligations, contingent or otherwise, of
    the Company or any of its subsidiaries (i) to repurchase, redeem or
    otherwise acquire any shares of Company Common Stock or other capital stock
    of the Company or the capital stock of any subsidiary of the Company or
    (ii) other than advances to wholly owned subsidiaries in the ordinary
    course of business, to provide funds to, or to make any investment in (in
    the form of a loan, capital contribution or otherwise), or to provide any
    guarantee with respect to the obligations of, any subsidiary of the Company
    or any other person.  Except (i) as set forth in Section 3.03(c) of the
    Company Disclosure Schedule or (ii) for subsidiaries of the Company set
    forth in Section 3.01 of the Company Disclosure Schedule, neither the
    Company nor any of its subsidiaries (x) directly or indirectly owns,
    (y) has agreed to purchase or otherwise acquire or (z) holds any interest
    convertible into or exchangeable or exercisable for the capital stock or
    other equity interests of any corporation, partnership, joint venture or
    other business association or entity.  Except as set forth in Section
    3.03(c) of the Company Disclosure Schedule or for any agreements,
    arrangements or commitments between the Company and its wholly owned
    subsidiaries or between such wholly owned subsidiaries, there are no
    agreements, arrangements or commitments of any character (contingent or
    otherwise) pursuant to which any person is or may be entitled to receive
    any payment based on, or calculated in accordance with, the revenues or
    earnings of the Company or any of its subsidiaries.  Except as set forth in
    Section 3.03(c) of the Company Disclosure Schedule, there are no voting
    trusts, proxies or other agreements or understandings to which the Company
    or any of its subsidiaries is a party or by which the Company or any of its
    subsidiaries is bound with respect to the voting of any shares of capital
    stock or other equity interests of the Company or any of its subsidiaries.

         (d)  Section 3.03(d) of the Company Disclosure Schedule sets forth a
    complete and correct list as of March 31, 1996, of (i) the number of
    options to purchase Company Common Stock outstanding, (ii) the number of
    Common Stock Warrants and Series B Preferred Stock Warrants outstanding,
    (iii) the exercise price of each such outstanding stock 

                                      11

<PAGE>

    option and warrant and (iv) the number of stock options then exercisable.
    Complete and correct copies of the Option Plans, all forms of stock options
    issued pursuant to the Option Plans or otherwise, all forms of Common Stock
    Warrants and a form of Series B Preferred Stock Warrant, including all
    amendments thereto, have been delivered to ProNet.

    SECTION 3.04.  AUTHORITY.  The Company has all requisite corporate power
and authority to execute and deliver this Agreement, to perform its obligations
hereunder and to consummate the transactions contemplated hereby (subject to,
with respect to the Merger, the approval and adoption of this Agreement by the
stockholders of the Company as described in Section 6.01 of this Agreement). 
The execution and delivery of this Agreement by the Company and the consummation
by the Company of the transactions contemplated hereby have been duly authorized
by all necessary corporate action and no other corporate proceedings on the part
of the Company are necessary to authorize this Agreement or to consummate the
transactions contemplated hereby (subject to, with respect to the Merger, the
approval and adoption of this Agreement by the stockholders of the Company as
described in Section 6.01 of this Agreement).  This Agreement has been duly
executed and delivered by the Company and, assuming the due authorization,
execution and delivery hereof by the ProNet Companies, constitutes the legal,
valid and binding obligation of the Company, except that (a) such enforcement
may be subject to applicable bankruptcy, insolvency, fraudulent transfer, or
other laws, now or hereafter in effect, affecting creditors' rights generally,
and (b) the remedy of specific performance and injunctive and other forms of
equitable relief may be subject to equitable defenses (including commercial
reasonableness, good faith, and fair dealing) and to the discretion of the court
before which any proceeding therefor may be brought.

    SECTION 3.05.  NO CONFLICT; REQUIRED FILINGS AND CONSENTS.

         (a)  Assuming that all consents, licenses, permits, waivers,
    approvals, authorizations, orders, filings and notifications contemplated
    by the exceptions to Section 3.05(b) are obtained or made and except as
    disclosed in Section 3.05(a) of the Company Disclosure Schedule, the
    execution and delivery of this Agreement by the Company does not, and the
    performance by the Company of its obligations hereunder, including
    consummation of the transactions contemplated hereby, will not (i) conflict
    with or violate the Certificate of Incorporation or Bylaws, or the
    equivalent organizational documents, in each case as amended or restated,
    of the Company or any of its subsidiaries, (ii) conflict with or violate
    any federal, state, foreign or local law, statute, ordinance, rule or 
    regulation (collectively, "LAWS") in effect as of the date of this
    Agreement or any judgment, order or decree to which the Company or any of
    its subsidiaries is a party or by or to which any of their respective
    properties are bound or subject or (iii) result in any breach of or
    constitute a default (or an event that with notice or lapse of time or both
    would become a default) under, or give to others any rights of termination,
    amendment, acceleration or cancellation of, or require payment under, or
    result in the creation of a lien or encumbrance on any of the properties or
    assets of the Company or any of its subsidiaries pursuant to, any note,
    bond, mortgage, indenture, contract, agreement, lease, license, permit,
    franchise or other instrument or obligation to which the Company or any of
    its subsidiaries is a party or by or to which the Company or any of its
    subsidiaries or any of their respective properties are bound or subject
    except for any such conflicts, violations, breaches, defaults, events,

                                          12

<PAGE>

    rights of termination, amendment, acceleration or cancellation, payment
    obligations or liens or encumbrances that could not reasonably be expected
    to have a Company Material Adverse Effect.  The Board of Directors of the
    Company has taken all actions necessary under Delaware Law, including
    approving the transactions contemplated by this Agreement and approving the
    voting agreement of even date herewith to be entered into by and among
    ProNet and certain stockholders of the Company (the "VOTING AGREEMENT"), to
    ensure that the prohibitions on business combinations set forth in Section
    203 of Delaware Law do not, and will not, apply to the transactions
    contemplated by this Agreement.  
    
         (b)  The execution and delivery of  this Agreement by the Company does
    not, and the performance by the Company of its obligations hereunder,
    including consummation of the transactions contemplated hereby, will not,
    require the Company to obtain any consent, license, permit, waiver,
    approval, authorization or order of, or to make any filing with or
    notification to, any governmental or regulatory authority, federal, state,
    local or foreign (collectively, "GOVERNMENTAL ENTITIES"), except (i) for
    (A) applicable requirements, if any, of the Securities Act, the Securities
    Exchange Act of 1934, as amended (the "EXCHANGE ACT"), and state securities
    or blue sky laws ("BLUE SKY LAWS"), (B) the pre-merger notification
    requirements of the Hart-Scott-Rodino Antitrust Improvements Act of 1976,
    as amended (the "HSR ACT"), and (C) applicable approvals of the Federal
    Communications Commission (the "FCC") pursuant to the Communications Act of
    1934, as amended, and any regulations promulgated thereunder (the
    "COMMUNICATIONS ACT"), (ii) the filing and recordation of appropriate
    merger documents as required by Delaware Law, (iii) where the failure to
    obtain such consents, licenses, permits, waivers, approvals, authorizations
    or orders, or to make such filings or notifications could not, individually
    or in the aggregate reasonably be expected to cause a Company Material
    Adverse Effect or to prevent the Company from performing its obligations
    under this Agreement and (iv) as disclosed in Section 3.05(b) of the
    Company Disclosure Schedule.

    SECTION 3.06.  PERMITS; COMPLIANCE.

         (a)  Except as disclosed in Section 3.06(a) of the Company Disclosure
    Schedule, each of the Company and its subsidiaries is in possession of all
    franchises, grants, authorizations, licenses, permits, easements,
    variances, exemptions, consents, certificates, identification and
    registration numbers, approvals and orders (collectively, the "PERMITS")
    necessary to own, lease and operate their radio common carrier and private
    carrier radio paging system businesses (the "SYSTEM") and their other
    properties and to carry on their businesses as they are now being
    conducted, except where the failure to possess such Permits could not
    reasonably be expected to have a Company Material Adverse Effect.  Section
    3.06(a) of the Company Disclosure Schedule sets forth, to the best of the
    Company's knowledge, (i) a list of the FCC Licenses (as defined in Section
    3.06(b)) and (ii) all other Permits (other than Permits that the failure to
    possess could not reasonably be expected to have a Company Material Adverse
    Effect) held by the Company or a subsidiary of the Company and the
    jurisdiction issuing the same, all of which are now and as of the Effective
    Time shall be in good standing and not subject to meritorious challenge.
    Section 3.06(a) of the Company Disclosure Schedule also sets forth, as of
    the date of this Agreement, all 

                                        13

<PAGE>

    actions, proceedings, or investigations, pending or, to the knowledge of the
    Company, threatened against the Company or any of its subsidiaries 
    (excluding any action or proceeding of the FCC that is of general 
    applicability to the paging industry) that could reasonably be expected
    to result in the loss, revocation, suspension or cancellation of a 
    Permit held by the Company or a subsidiary of the Company, except for 
    any suspension, loss or revocation that could not reasonably be expected
    to have a Company Material Adverse Effect.  Except as set forth in 
    Section 3.06(a) of the Company Disclosure Schedule, neither
    the Company nor any of its subsidiaries is in conflict with, in default
    under or in violation of, and none of them has received, since December 31,
    1993, from any Governmental Entity any written notice with respect to any
    conflict with, default under or violation of, (A) any Law applicable to the
    Company or any of its subsidiaries or by or to which any of their
    respective properties are bound or subject, (B) any judgment, order or
    decree applicable to the Company or any of its subsidiaries or (C) any of
    the Permits held by the Company or a subsidiary of the Company, except for
    any such conflicts, defaults or violations that could not reasonably be
    expected to have a Company Material Adverse Effect.

         (b)  Without limiting the generality of the foregoing and except as
    disclosed in Section 3.06(b) of the Company Disclosure Schedule, the
    Company and its subsidiaries (i) have all Permits issued by the FCC (the
    "FCC LICENSES") required for the operation of the System and related
    facilities being operated on the date hereof by the Company and its
    subsidiaries and (ii) have duly and currently filed all reports and other
    information required to be filed by the Company and its subsidiaries with
    the FCC in connection with such FCC Licenses, except where the failure to
    file could not reasonably be expected to have a Company Material Adverse
    Effect.  The Company and its subsidiaries that are FCC licensees are
    financially qualified, and to the best of the Company's knowledge, are
    otherwise qualified to be FCC licensees.  The Company is not aware of any
    facts or circumstances that might prevent or delay any necessary FCC
    approval of the transactions contemplated hereby.  The Company and its
    subsidiaries have complied in all material respects with and, prior to the
    Closing, will comply in all material respects with, all rules, regulations,
    policies, precedents, and orders of the FCC with respect to the
    obstruction, marking and lighting of each and every tower that is owned by
    the Company.  

    SECTION 3.07.  REPORTS; FINANCIAL STATEMENTS.

         (a)  Since December 21, 1994, the Company has filed all forms,
    reports, statements and other documents required to be filed with (i) the
    Securities and Exchange Commission (the "SEC"), including without
    limitation (A) all Annual Reports on Form 10-K, (B) all Quarterly Reports
    on Form 10-Q, (C) all proxy statements relating to meetings of stockholders
    (whether annual or special), (D) all Current Reports on Form 8-K and
    (E) all other reports, schedules, registration statements or other
    documents (collectively referred to as the "COMPANY SEC REPORTS"), and (ii)
    any applicable state securities authorities (all such forms, reports,
    statements and other documents being referred to herein, collectively, as
    the "COMPANY REPORTS"), except where the failure to file any Company
    Reports could not reasonably be expected to have a Company Material Adverse
    Effect.  The Company Reports were prepared in all material respects in
    accordance with the requirements 

                                      14

<PAGE>

    of applicable Laws (including, with respect to the Company SEC Reports, the
    Securities Act or the Exchange Act, as the case may be, and the rules and 
    regulations of the SEC thereunder applicable to such Company SEC Reports) 
    and the Company SEC Reports, other than the historical financial statements
    of businesses acquired by the Company, contained therein (the "Historical 
    Financials"), and, to the knowledge of the Company, the Historical 
    Financials did not at the time they were filed contain any untrue statement
    of a material fact or omit to state a material fact required to be stated 
    therein or necessary in order to make the statements therein, in the light
    of the circumstances under which they were made, not misleading.

         (b)  The consolidated financial statements (including, in each case,
    any related notes thereto) contained in the Company SEC Reports (i) have
    been prepared in accordance with the published rules and regulations of the
    SEC and generally accepted accounting principles (other than any departures
    from generally accepted accounting principles consistent with prior
    periods) applied on a consistent basis throughout the periods involved
    (except (A) to the extent disclosed therein or required by changes in
    generally accepted accounting principles, (B) with respect to Company SEC
    Reports, as may be indicated in the notes thereto and (C) in the case of
    the unaudited financial statements, as permitted by the rules and
    regulations of the SEC) and (ii) fairly present the consolidated financial
    position of the Company and its subsidiaries as of the respective dates
    thereof and the consolidated results of operations and cash flows for the
    periods indicated (except, in the case of unaudited consolidated financial
    statements for interim periods, for the absence of footnotes and subject to
    adjustments, consisting only of normal, recurring accruals, necessary to
    present fairly such results of operations and cash flows), except that any
    pro forma financial statements contained in such consolidated financial
    statements are not necessarily indicative of the consolidated financial
    position of the Company and its subsidiaries as of the respective dates
    thereof and the consolidated results of operations and cash flows for the
    periods indicated.

    SECTION 3.08.  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as disclosed
in the Company SEC Reports filed prior to the date of this Agreement or as set
forth in Section 3.08 of the Company Disclosure Schedule, since November 30,
1995 the Company and its subsidiaries have conducted their respective businesses
only in the ordinary course and in a manner consistent with past practice and
there has not been (a) any damage, destruction or loss with respect to any
assets of the Company or any of its subsidiaries that, whether or not covered by
insurance, would constitute a Company Material Adverse Effect, (b) any change by
the Company or its subsidiaries in their significant accounting policies,
(c) except for dividends by a subsidiary of the Company to the Company or
another wholly owned subsidiary of the Company, any declaration, setting aside
or payment of any dividends or distributions in respect of shares of Company
Common Stock or the shares of stock of, or other equity interests in, any
subsidiary of the Company or any redemption, purchase or other acquisition of
any of the Company's securities or any of the securities of any subsidiary of
the Company, (d) any material increase in the benefits under, or the
establishment or amendment of, any bonus, insurance, severance, deferred
compensation, pension, retirement, profit sharing, performance awards
(including, without limitation, the granting of stock  appreciation rights or
restricted stock awards), stock purchase or other employee benefit plan, or any
increase in the compensation payable or to become payable to any of the
directors or officers of the Company or 

                                      15

<PAGE>

the employees of the Company or its subsidiaries as a group, except for (i) 
increase in salaries or wages payable or to become payable in the ordinary 
course of business and consistent with past practice or (ii) the granting of 
stock options in the ordinary course of business to employees of the Company 
or its subsidiaries who are not directors or executive officers of the 
Company, or (e) any other Company Material Adverse Effect.

    SECTION 3.09.  ABSENCE OF LITIGATION.  Except as disclosed in the Company
SEC Reports filed prior to the date of this Agreement or as set forth in Section
3.09 of the Company Disclosure Schedule, there is no claim, action, suit,
litigation, proceeding, arbitration or, to the knowledge of the Company,
investigation of any kind, at law or in equity (including actions or proceedings
seeking injunctive relief), pending or, to the knowledge of the Company,
threatened against the Company or any of its subsidiaries or any properties or
rights of the Company or any of its subsidiaries (except for claims, actions,
suits, litigation, proceedings, arbitrations or investigations that could not
reasonably be expected to have a Company Material Adverse Effect), and neither
the Company nor any of its subsidiaries is subject to any continuing order of,
consent decree, settlement agreement or other similar written agreement with,
or, to the knowledge of the Company, continuing investigation by, any
Governmental Entity, or any judgment, order, writ, injunction, decree or award
of any Governmental Entity or arbitrator, including without limitation 
cease-and-desist or other orders, except for matters that could not reasonably 
be expected to have a Company Material Adverse Effect.

    SECTION 3.10.  EMPLOYEE BENEFIT PLANS; LABOR MATTERS.  

         (a)  With respect to each employee benefit plan, program, arrangement,
    contract, employment agreement, stock option, bonus, incentive or similar
    plan (including, without limitation, any "EMPLOYEE BENEFIT PLAN" as defined
    in Section 3(3) of the Employee Retirement Income Security Act of 1974, as
    amended ("ERISA")), maintained or contributed to by the Company or any of
    its subsidiaries, or with respect to which the Company or any of its
    subsidiaries could reasonably be expected to incur liability under ERISA
    (the "COMPANY BENEFIT PLANS"), the Company has delivered or made available
    to ProNet a true and correct copy of (i) such Company Benefit Plan,
    (ii) each trust agreement, if any, relating to such Company Benefit Plan,
    (iii) the most recent summary plan description of each Company Benefit Plan
    for which a summary plan description is required, and (iv) the most recent
    determination letter issued by the IRS with respect to any Company Benefit
    Plan that is intended to be qualified under Section 401 of the Code. 
    Section 3.10 of the Company Disclosure Schedule contains a complete list of
    all Company Benefit Plans.

         (b)  With respect to the Company Benefit Plans, no event has occurred
    and, to the knowledge of the Company, there exists no condition or set of
    circumstances, in connection with which the Company or any of its
    subsidiaries could be subject to any liability under the terms of such
    Company Benefit Plans, ERISA, the Code or any other applicable Law that
    could reasonably be expected to have a Company Material Adverse Effect.

         (c)  There are no collective bargaining or other labor union contracts
    to which the Company or its subsidiaries is a party and no collective
    bargaining agreement is being 

                                     16

<PAGE>

    negotiated by the Company or any of its subsidiaries.  There is no pending
    or, to the knowledge of the Company, threatened labor dispute, strike or 
    work stoppage against the Company or any of its subsidiaries that could 
    materially interfere with the respective business activities of the Company
    or any of its subsidiaries.

         (d)  No Company Benefit Plan provides retiree medical or retiree life
    insurance benefits that could reasonably be expected to have a Company
    Material Adverse Effect and neither the Company nor any of its subsidiaries
    is contractually or otherwise obligated to provide life insurance and
    medical benefits upon retirement or termination of employment of employees
    that could reasonably be expected to have a Company Material Adverse
    Effect.

         (e)  Neither the Company nor any of its subsidiaries contributes to or
    has an obligation to contribute to, or has within six years prior to the
    date of this Agreement contributed to or had an obligation to contribute
    to, an employee benefit plan that is or was subject to Title IV of ERISA or
    Section 412 of the Code.

    SECTION 3.11.  TAXES.  Except as set forth in Section 3.11 of the Company
Disclosure Statement:

         (a)  (i) all returns and reports ("TAX RETURNS") of or with respect to
    any Tax which is required to be filed on or before the date hereof by or
    with respect to the Company or any of its subsidiaries have been duly and
    timely filed except to the extent that a failure to file any such Tax
    Returns, individually or in the aggregate, could not reasonably be expected
    to have a Company Material Adverse Effect, (ii) all items of income, gain,
    loss, deduction and credit or other items required to be included in each
    such Tax Return have been so included and all information provided in each
    such Tax Return is true, correct and complete in all material respects
    except to the extent that a failure to include any such items, individually
    or in the aggregate, could not reasonably be expected to have a Company
    Material Adverse Effect, (iii) all material Taxes which have become due
    with respect to the period covered by each such Tax Return have been or
    will be timely paid in full except to the extent that the failure to make
    any such payments, individually or in the aggregate, could not reasonably
    be expected to have a Company Material Adverse Effect, (iv) all withholding
    Tax requirements imposed on or with respect to the Company or any of its
    subsidiaries have been satisfied in all respects except where the failure
    to satisfy any such requirements, individually or in the aggregate, could
    not reasonably be expected to have a Company Material Adverse Effect, and
    (v) no material penalty, interest or other charge is due with respect to
    the late filing of any such Tax Return or late payment of any such Tax
    except for any such penalties, interest, or other charges which,
    individually or in the aggregate, could not reasonably be expected to have
    a Company Material Adverse Effect.

         (b)  There is no claim against the Company or any of its subsidiaries
    for any amount of Taxes, and no assessment, deficiency or adjustment has
    been asserted or proposed with respect to any Tax Return of or with respect
    to the Company or any of its subsidiaries, other than those disclosed (and
    to which are attached true and complete copies of all audit or similar
    reports) in Section 3.11 of the Company Disclosure Schedule and other than
    any 

                                      17

<PAGE>

    such claims, assessments, deficiencies or adjustments which could not,
    individually or in the aggregate, reasonably be expected to have a Company
    Material Adverse Effect. 

         (c)  To the best knowledge of the Company after inquiry, the total
    amounts set up as liabilities for current and deferred Taxes in the
    financial statements referred to in Section 3.07 of this Agreement are
    sufficient to cover the payment of all Taxes, whether or not assessed or
    disputed, which are, or are hereafter found to be, or to have been, due by
    or with respect to the Company and any of its subsidiaries up to and
    through the periods covered thereby.

         (d)  Except for statutory liens for current Taxes not yet due and for
    Taxes being contested in good faith, no material liens for Taxes exist upon
    the assets of any of the Company or any of its subsidiaries.

         (e)  Neither the Company nor any of its subsidiaries has made an
    election under section 341(f) of the Code.

         (f)  Neither the Company nor, to the knowledge of the Company, any of
    its affiliates has taken or agreed to take any action that would prevent
    the Merger from constituting a reorganization qualifying under the
    provisions of Section 368(a) of the Code.

    SECTION 3.12.  AFFILIATES.  Section 3.12 of the Company Disclosure Schedule
identifies all persons who, to the knowledge of the Company, may be deemed to be
affiliates of the Company within the meaning of that term as used in Rule 145
promulgated pursuant to the Securities Act, including, without limitation, all
directors and executive officers of the Company.

    SECTION 3.13.  CERTAIN BUSINESS PRACTICES.  To the Company's knowledge,
except as set forth in Section 3.13 of the Company Disclosure Schedule, none of
the Company, any of its subsidiaries or any directors, officers, agents or
employees of the Company or any of its subsidiaries (in their capacities as
such) has (a) used any funds for unlawful contributions, gifts, entertainment or
other unlawful purposes relating to political activity, (b) made any unlawful
payment to foreign or domestic government officials or employees or to foreign
or domestic political parties or campaigns or violated any provision of the
Foreign Corrupt Practices Act of 1977, as amended, or (c)  made any other
unlawful payment.

    SECTION 3.14.  PROPERTIES.  Except as set forth in Section 3.14 of the
Company Disclosure Schedule or specifically described in the Company SEC
Reports, at August 3, 1995, the Company had, and as of the date hereof to the
knowledge of the Company, the Company and its subsidiaries have, good and
marketable title, free and clear of all liens, the existence of which could
reasonably be expected to have a Company Material Adverse Effect, to all their
properties and assets whether tangible or intangible, real, personal or mixed,
reflected in the Company's consolidated financial statements contained in the
Company's most recent SEC Report on Form 10-Q as being owned by the Company and
its subsidiaries as of the date thereof, other than (a) any properties or assets
that have been sold or otherwise disposed of in the ordinary course of business
since the date of such financial statements, (b) liens disclosed in the notes to
such financial statements and (c) liens 

                                     18

<PAGE>

arising in the ordinary course of business after the date of such financial 
statements.  All buildings, and all fixtures, equipment and other property 
and assets that are material to the business of the Company and its 
subsidiaries, taken as a whole, held under leases or sub-leases by the 
Company or any of its subsidiaries (excluding any leases or sub-leases that 
are terminable by the lessor upon 30 or fewer days notice) are held under 
valid instruments enforceable against the Company in accordance with their 
respective terms, subject to applicable laws of bankruptcy, insolvency or 
similar laws relating to creditors' rights generally and to general 
principles of equity (whether applied in a proceeding in law or equity).

    SECTION 3.15.  INTELLECTUAL RIGHTS.  To the knowledge of the Company,
Section 3.15 of the Company Disclosure Schedule sets forth a true and complete
list and description of all registered patents, trademarks, servicemarks,
tradenames, copyrights, and applications therefor owned by or registered in the
name of the Company or a subsidiary of the Company, or in which the Company or a
subsidiary of the Company has any right, license or interest (the "COMPANY
INTELLECTUAL PROPERTY RIGHTS").  To the knowledge of the Company, neither the
Company nor any subsidiary of the Company is a party to any license agreement,
whether written or oral, either as licensor or licensee, with respect to any
Company Intellectual Property Rights.  To the knowledge of the Company, the
Company or a subsidiary of the Company has good and marketable title to or the
right to use all Company Intellectual Property Rights and all inventions,
processes, designs, formulae, trade secrets, and know-how necessary for the
operation of the System and any other business activity conducted by the Company
or any of its subsidiaries, without the payment of any royalty or similar
payment.  To the knowledge of the Company, neither the Company nor any
subsidiary of the Company is infringing any patent, trademark, servicemark,
tradename or copyright of others, and neither the Company nor any subsidiary of
the Company is aware of any infringement by others of any such rights owned by
the Company or a subsidiary of the Company.  

    SECTION 3.16.  PAGERS.  Section 3.16 of the Company Disclosure Schedule
sets forth the number of pagers in service in the System as of March 31, 1996. 
Prior to the execution of this Agreement, the Company has delivered a list of
such pagers in service to ProNet.

    SECTION 3.17.  INSIDER INTERESTS.  Except as set forth in Section 3.17 of
the Company Disclosure Schedule, no officer or director of the Company or holder
of more than five percent of the Company Common Stock currently outstanding has
any interest in any material property, real or personal, tangible or intangible,
including without limitation, any computer software or Company Intellectual
Property Rights, used in or pertaining to the business of the Company or any
subsidiary of the Company, except for the ordinary rights of a stockholder or
employee stock optionholder.

    SECTION 3.18.  CONTRACTS AND AGREEMENTS.  The contracts and agreements
listed in Section 3.18 of the Company Disclosure Schedule constitute all of the
written and material oral contracts, commitments, leases, and other agreements
(including, without limitation, promissory notes, loan agreements, and other
evidences of indebtedness but excluding rental agreements and agreements with
resellers) to which the Company or any of its subsidiaries is a party or by
which any of their properties are bound with respect to which the obligations of
or the benefits to be received by the Company or any of its subsidiaries,
individually or in the aggregate, could reasonably be expected to have a value
in excess of $125,000 in any consecutive 12-month period (each a 

                                    19

<PAGE>

"MATERIAL CONTRACT").  The Company has also furnished to ProNet the standard 
form rental agreement and agreement with resellers used in the ordinary 
course of business of the Company and its subsidiaries.  Neither the Company 
nor any of its subsidiaries are and, to the best knowledge of the Company, no 
other party thereto is in default (and no event has occurred which, with the 
passage of time or the giving of notice, or both, would constitute a default) 
under any Material Contract, and neither the Company nor any of its 
subsidiaries have waived any right under any Material Contract.  Neither the 
Company nor any of its subsidiaries have received any notice of default or 
termination under any Material Contract and neither the Company nor any of 
its subsidiaries has assigned or otherwise transferred any rights under any 
Material Contract.

    SECTION 3.19.  VOTE REQUIRED.  The only votes of the holders of any class
or series of Company capital stock necessary to approve the Merger and this
Agreement are (a) the affirmative votes of the holders of at least two-thirds of
the outstanding shares of the Company Series A Preferred Stock voting as a
separate class and (b) the affirmative votes of the holders of at least a
majority of the outstanding shares of each of the Company Common Stock and the
Company Series B Preferred Stock, in each case voting as a separate class.

    SECTION 3.20.  BROKERS.  No broker, finder or investment banker (other than
Bear, Stearns & Co. Inc.) is entitled to any brokerage, finder's or other fee or
commission in connection with the transactions contemplated by this Agreement
based upon arrangements made by or on behalf of the Company.  Prior to the date
of this Agreement, the Company has made available to ProNet a complete and
correct copy of all agreements between the Company and Bear, Stearns & Co. Inc.
pursuant to which such firm will be entitled to any payment relating to the
transactions contemplated by this Agreement.

    SECTION 3.21.  OPINION OF FINANCIAL ADVISOR.  The special committee of the
Board of Directors of the Company has received the written opinion of Bear,
Stearns & Co. Inc. to the effect that, as of the date of this Agreement, the
Merger Consideration to be paid to the holders of the Company Common Stock,
other than the Affiliated Stockholders, is fair, from a financial point of view,
to such holders.  The Company will promptly deliver a copy of such opinion to
ProNet.

                                     ARTICLE IV.

                REPRESENTATIONS AND WARRANTIES OF THE PRONET COMPANIES

    The ProNet Companies hereby, jointly and severally, represent and warrant
to the Company that:

    SECTION 4.01.  ORGANIZATION AND QUALIFICATION; SUBSIDIARIES.  Each of the
ProNet Companies is a corporation, and each of ProNet's other subsidiaries is a
corporation, duly organized, validly existing and in good standing under the
laws of its jurisdiction of incorporation and each of the ProNet Companies and
each of ProNet's other subsidiaries has all requisite power and authority to
own, lease and operate its properties and to carry on its business as it is now
being conducted and is duly qualified and in good standing to do business in
each jurisdiction in which the nature of the business conducted by it or the
ownership or leasing of its properties makes such qualification 

                                   20

<PAGE>

necessary, other than where the failure to be so duly qualified and in good 
standing could not reasonably be expected to have a ProNet Material Adverse 
Effect.  The term "PRONET MATERIAL ADVERSE EFFECT" as used in this Agreement 
shall mean any change or effect that would be materially adverse to the 
financial condition, results of operations or business of ProNet and its 
subsidiaries, taken as a whole, at the time of such change or effect.  
Section 4.01 of the Disclosure Schedule delivered by ProNet to the Company 
concurrently with the execution of this Agreement (the "PRONET DISCLOSURE 
SCHEDULE") sets forth, as of the date of this Agreement, a true and complete 
list of all of ProNet's directly or indirectly owned subsidiaries, together 
with (a) the jurisdiction of incorporation or organization of each such 
subsidiary and the percentage of each such subsidiary's outstanding capital 
stock or other equity interests owned by ProNet or another subsidiary of 
ProNet and (b) an indication of whether each such subsidiary is a 
"SIGNIFICANT SUBSIDIARY" as defined in Section 9.03 of this Agreement. 

    SECTION 4.02.  CERTIFICATE OF INCORPORATION AND BYLAWS.  ProNet has
heretofore furnished or made available to the Company complete and correct
copies of the Certificate of Incorporation and Bylaws, in each case as amended
or restated to the date hereof, of ProNet and Merger Sub.  Neither ProNet nor
any of its subsidiaries is in violation of any of the provisions of its
Certificate of Incorporation or Bylaws.

    SECTION 4.03.  CAPITALIZATION.

         (a)  The authorized capital stock of ProNet consists of 20,000,000
    shares of ProNet Common  Stock and 5,000,000 shares of preferred stock, par
    value $.01 per share ("PRONET PREFERRED STOCK").  At the close of business
    on March 31, 1996, 7,069,328 shares of ProNet Common Stock were issued and
    outstanding, 424,853 shares of ProNet Common Stock were held by ProNet in
    its treasury and 1,943,042 shares of ProNet Common Stock were reserved for
    issuance as follows:  (i) 814,327 shares were reserved for issuance upon
    exercise of stock options heretofore granted or available for grant
    pursuant to ProNet's 1987 Stock Option Plan; (ii) 37,500 shares were
    reserved for issuance upon exercise of stock options heretofore granted or
    available for grant pursuant to the ProNet's Non-Employee Director Stock
    Option Plan; (iii) 1,000,000 shares were reserved for issuance upon
    exercise of stock options heretofore granted or available for grant
    pursuant to the ProNet 1995 Long-Term Incentive Plan; (iv) 83,715 shares
    were reserved for issuance upon the purchase of shares under the ProNet
    1995 Employee Stock Purchase Plan; and (v) 7,500 shares were reserved for
    issuance upon exercise of a stock option heretofore granted to a 
    non-employee director pursuant to a separate agreement (the stock option
    plans referenced in clauses (i) through (v) of this Section being herein
    collectively called the "OPTION PLANS").  In addition, ProNet is obligated
    and/or has the option to issue and deliver an indeterminate number of
    shares of ProNet Common Stock (A) pursuant to the Pinnacle Reseller Program
    and the related Performance Award Agreements described in Section 4.03(a)
    of the ProNet Disclosure Schedule and (B) in connection with acquisitions
    of businesses by ProNet or its subsidiaries pursuant to the acquisition
    agreements described in Schedule 4.03(a) of the ProNet Disclosure Schedule. 
    No shares of ProNet Preferred Stock are issued or outstanding.  Except as
    described in this Section 4.03 or in Section 4.03(a) of the ProNet
    Disclosure Schedule and except for shares of Series A Junior Participating
    Preferred Stock issuable upon 

                                         21

<PAGE>

    exercise of the Rights, no shares of capital stock of ProNet are reserved 
    for issuance for any other purpose.  Since March 31, 1996, no shares of 
    capital stock have been issued by ProNet or any of its subsidiaries except
    pursuant to agreements for which shares were adequately reserved at such 
    date as described in this subsection (a). Since March 31, 1996, neither 
    ProNet nor any of its subsidiaries have granted any options for, or other 
    rights to purchase, any shares of capital stock of ProNet or any of its 
    subsidiaries.  Each of the issued shares of capital stock of, or other 
    equity interests in, each of ProNet and its subsidiaries is duly authorized,
    validly issued and, in the case of shares of capital stock, fully paid and 
    nonassessable, and have not been issued in violation of (nor are any of the
    authorized shares of capital stock of, or other equity interests in, ProNet
    or any of its subsidiaries subject to) any preemptive or similar rights 
    created by statute, the Certificate of Incorporation or Bylaws (or the 
    equivalent organizational documents) of ProNet or any of its subsidiaries,
    or any agreement to which ProNet or any of its subsidiaries is a party or
    is bound, and, except as set forth in Section 4.03(a) of the ProNet 
    Disclosure Schedule, all issued shares or other equity interests in the 
    subsidiaries of ProNet owned by ProNet or a subsidiary of ProNet are owned
    free and clear of all security interests, liens, claims, pledges, 
    agreements, limitations on ProNet's or such subsidiary's voting rights, 
    charges or other encumbrances of any nature whatsoever.  

         (b)  No bonds, debentures, notes or other indebtedness of ProNet
    having the right to vote (or convertible into or exchangeable or
    exercisable for securities having the right to vote) on any matters on
    which stockholders may vote ("PRONET VOTING DEBT") are issued or
    outstanding. 

         (c)  Except as set forth in Section 4.03(a) above or in Section
    4.03(c) of the ProNet Disclosure Schedule, there are no options, warrants
    or other rights (including registration rights), agreements, arrangements
    or commitments of any character to which ProNet or any of its subsidiaries
    is a party relating to the issued or unissued capital stock of ProNet or
    any of its subsidiaries or obligating ProNet or any of its subsidiaries to
    grant, issue or sell any shares of capital stock, ProNet Voting Debt or
    other equity interests of ProNet or any of its subsidiaries.  Except as set
    forth in Section 4.03(c) of the ProNet Disclosure Schedule, there are no
    obligations, contingent or otherwise, of ProNet or any of its subsidiaries
    (i) to repurchase, redeem or otherwise acquire any shares of ProNet Common
    Stock or other capital stock of ProNet or the capital stock of any
    subsidiary of ProNet or (ii) other than advances to wholly owned
    subsidiaries in the ordinary course of business, to provide funds to, or to
    make any investment in (in the form of a loan, capital contribution or
    otherwise), or to provide any guarantee with respect to the obligations of,
    any subsidiary of ProNet or any other person.  Except as set forth in
    Section 4.03(c) of the ProNet Disclosure Schedule, neither ProNet nor any
    of its subsidiaries (x) directly or indirectly owns, (y) has agreed to
    purchase or otherwise acquire or (z) holds any interest convertible into or
    exchangeable or exercisable for the capital stock or other equity interests
    of any corporation, partnership, joint venture or other business
    association or entity.  Except as set forth in Section 4.03(c) of the
    ProNet Disclosure Schedule or for any agreements, arrangements or
    commitments between ProNet and its wholly owned subsidiaries or between
    such wholly owned subsidiaries, there are no agreements, arrangements or
    commitments of any character 

                                      22

<PAGE>

    (contingent or otherwise) pursuant to which any person is or may be entitled
    to receive any payment based on, or calculated in accordance with,  the 
    revenues or earnings of ProNet or any of its subsidiaries.  Except as set
    forth in Section 4.03(c) of the ProNet Disclosure Schedule, there are no 
    voting trusts, proxies or other agreements or understandings to which ProNet
    or any of its subsidiaries is a party or by which ProNet or any of its 
    subsidiaries is bound with respect to the voting of any shares of capital
    stock or other equity interests of ProNet or any of its subsidiaries.

         (d)  The authorized capital stock of Merger Sub consists of 10,000
    shares of common stock, par value $.01 per share ("MERGER SUB COMMON
    STOCK").  An aggregate of 1,000 shares of Merger Sub Common Stock are
    issued and outstanding and held by ProNet, all of which are duly
    authorized, validly issued, fully paid and nonassessable and not subject to
    preemptive rights created by statute, Merger Sub's Certificate of
    Incorporation or Bylaws or any agreement to which Merger Sub is a party or
    is bound.

         (e)  The shares of ProNet Common Stock to be issued pursuant to the
    Merger will be duly authorized, validly issued, fully paid and
    nonassessable and not subject to preemptive rights created by statute,
    ProNet's Certificate of Incorporation or Bylaws or any agreement to which
    ProNet is a party or is bound.

    SECTION 4.04.  AUTHORITY.  Each of the ProNet Companies has all requisite
corporate power and authority to execute and deliver this Agreement, to perform
its obligations hereunder and to consummate the transactions contemplated
hereby.  The execution and delivery of this Agreement by each of the ProNet
Companies and the performance by each of the ProNet Companies of its obligations
hereunder, including the consummation of the transactions contemplated hereby,
have been duly authorized by all necessary corporate action and no other
corporate proceedings on the part of either of the ProNet Companies are
necessary to authorize this Agreement or to consummate the transactions
contemplated hereby (subject to, with respect to the Merger, the approval and
adoption of this Agreement by the stockholders of ProNet as set forth in Section
6.01 of this Agreement).  This Agreement has been duly executed and delivered by
each of the ProNet Companies and, assuming the due authorization, execution and
delivery hereof by the Company, constitutes the legal, valid and binding
obligation of each of the ProNet Companies, except that (a) such enforcement may
be subject to applicable bankruptcy, insolvency, fraudulent transfer, or other
laws, now or hereafter in effect, affecting creditors' rights generally, and
(b) the remedy of specific performance and injunctive and other forms of
equitable relief may be subject to equitable defenses (including commercial
reasonableness, good faith, and fair dealing) and to the discretion of the court
before which any proceeding therefor may be brought.
 
    SECTION 4.05.  NO CONFLICT; REQUIRED FILINGS AND CONSENTS.

         (a)  Assuming that all consents, licenses, permits, waivers,
    approvals, authorizations, orders, filings and notifications contemplated
    by the exceptions to Section 4.05(b) are obtained or made and except as
    otherwise disclosed in Section 4.05(a) of the ProNet Disclosure Schedule,
    the execution and delivery of this Agreement by each of the ProNet
    Companies does not, and performance by each of them of its obligations

                                      23

<PAGE>

    hereunder, including the consummation of the transactions contemplated
    hereby, will not (i) conflict with or violate the Certificate of
    Incorporation or Bylaws, or the equivalent organizational documents, in
    each case as amended or restated, of ProNet or any of ProNet's
    subsidiaries, (ii) conflict with or violate any Laws in effect as of the
    date of this Agreement or any judgment, order or decree to which ProNet or
    any of ProNet's subsidiaries is a party or by or to which any of their
    properties are bound or subject or (iii) result in any breach of or
    constitute a default (or an event that with or without notice or lapse of
    time or both would become a default) under, or give to others any rights of
    termination, amendment, acceleration or cancellation of, or require payment
    under, or result in the creation of a lien or encumbrance on any of the
    properties or assets of ProNet or any of ProNet's subsidiaries pursuant to,
    any note, bond, mortgage, indenture, contract, agreement, lease, license,
    permit, franchise or other instrument or obligation to which ProNet or any
    of ProNet's subsidiaries is a party or by or to which ProNet or any of
    ProNet's subsidiaries or any of their respective properties is bound or
    subject, except for any such conflicts, violations, breaches, defaults,
    events, rights of termination, amendment, acceleration or cancellation,
    payment obligations or liens or encumbrances that could not reasonably be
    expected to have a ProNet Material Adverse Effect.

         (b)  The execution and delivery of this Agreement by each of the
    ProNet Companies does not, and the performance by each of the ProNet
    Companies of its respective obligations hereunder, including consummation
    of the transactions contemplated hereby, will not, require either of the
    ProNet Companies to obtain any consent, license, permit, waiver, approval,
    authorization or order of, or to make any filing with or notification to,
    any Governmental Entity, except (i) for (A) applicable requirements, if
    any, of the Securities Act, the Exchange Act, and Blue Sky Laws, (B) the
    pre-merger notification requirements of the HSR Act, and (C) applicable
    approvals of the FCC pursuant to the Communications Act, (ii) the filing
    and recordation of appropriate merger documents as required by Delaware
    Law, (iii) where the failure to obtain such consents, licenses, permits,
    waivers, approvals, authorizations or orders, or to make such filings or
    notifications could not, individually or in the aggregate, reasonably be
    expected to cause a ProNet Material Adverse Effect or to prevent either of
    the ProNet Companies from performing its obligations under this Agreement
    and (iv) as disclosed in Section 4.05(b) of the ProNet Disclosure Schedule.

    SECTION 4.06.  PERMITS; COMPLIANCE.

         (a)  Each of ProNet and its subsidiaries is in possession of all
    Permits necessary to own, lease and operate their properties and to carry
    on their businesses as they are now being conducted except where the
    failure to possess such ProNet Permits could not reasonably be expected to
    have a ProNet Material Adverse Effect.  As of the date of this Agreement,
    there are no actions, proceedings, or investigations pending or, to the
    knowledge of ProNet, threatened against ProNet or any of its subsidiaries
    (excluding any action or proceeding of the FCC that is of general
    applicability to the paging industry) that could reasonably be expected to
    result in the loss, revocation, suspension or cancellation of a Permit held
    by ProNet or a subsidiary of ProNet, except for any suspension, loss or
    revocation that could not reasonably be expected to have a ProNet Material
    Adverse Effect.  

                                        24

<PAGE>

    Neither ProNet nor any of its subsidiaries is in conflict with, or in 
    default under or violation of, nor has it received, since December 31, 
    1993, from any Governmental Entity any written notice  with respect to 
    possible conflicts with, defaults under or violations of (i) any Law 
    applicable to ProNet or any of its subsidiaries or by or to which any of
    their respective properties are bound or subject, (ii) any judgment,
    order or decree applicable to ProNet or any of its subsidiaries or
    (iii) any Permits held by ProNet or a subsidiary of ProNet, except for any
    such conflicts, defaults or violations that could not reasonably be
    expected to have a ProNet Material Adverse Effect. 

         (b)  Without limiting the generality of the foregoing, ProNet and its
    subsidiaries (i) have all Permits issued by the FCC (the "PRONET FCC
    LICENSES") required for the operation of  their businesses as being
    operated on the date hereof, and (ii) have duly and currently filed all
    reports and other information required to be filed by ProNet and its
    subsidiaries with the FCC or in connection with such ProNet FCC Licenses,
    except where the failure to file could not reasonably be expected to have a
    ProNet Material Adverse Effect.  ProNet and its subsidiaries that are FCC
    licensees are financially qualified, and to the best of ProNet's knowledge,
    are otherwise qualified to be FCC licensees.  ProNet is not aware of any
    facts or circumstances that might prevent or delay any necessary FCC
    approval of the transactions contemplated hereby.  ProNet and its
    subsidiaries have complied in all material respects with and, prior to the
    Closing, will comply in all material respects with, all rules, regulations,
    policies, precedents, and orders of the FCC with respect to the
    obstruction, marking, and lighting of each and every tower owned by ProNet
    or any of its subsidiaries.


    SECTION 4.07.  REPORTS; FINANCIAL STATEMENTS.

         (a)  Since December 31, 1993, ProNet and its subsidiaries have filed
    all forms, reports, statements and other documents required to be filed
    with (i) the SEC, including without limitation (A) all Annual Reports on
    Form 10-K, (B) all Quarterly Reports on Form 10-Q, (C) all proxy statements
    relating to meetings of stockholders (whether annual or special), (D) all
    Current Reports on Form 8-K and (E) all other reports, schedules,
    registration statements or other documents (collectively referred to as the
    "PRONET SEC REPORTS"), and (ii) any applicable state securities authorities
    (all such forms, reports, statements and other documents being referred to
    herein, collectively, as the "PRONET REPORTS"), except where the failure to
    file any such ProNet Reports could not reasonably be expected to have a
    ProNet Material Adverse Effect.  The ProNet Reports were prepared in all
    material respects in accordance with the requirements of applicable Law
    (including, with respect to the ProNet SEC Reports, the Securities Act or
    the Exchange Act, as the case may be, and the rules and regulations of the
    SEC thereunder applicable to the ProNet SEC Reports) and the ProNet SEC
    Reports did not at the time they were filed contain any untrue statement of
    a material fact or omit to state a material fact required to be stated
    therein or necessary in order to make the statements therein, in the light
    of the circumstances under which they were made, not misleading.

         (b)  The consolidated financial statements (including, in each case,
    any related notes thereto) contained in the ProNet SEC Reports (i) have
    been prepared in accordance 

                                      25 

<PAGE>

    with the published rules and regulations of the SEC and generally accepted
    accounting principles applied on a consistent basis throughout the periods 
    involved (except (A) to the extent disclosed therein or required by changes
    in generally accepted accounting principles, (B) with respect to the ProNet
    SEC Reports filed prior to the date of this Agreement, as may be indicated 
    in the notes thereto and (C) in the case of the unaudited financial 
    statements, as permitted by the rules and regulations of the SEC) and (ii)
    fairly present the consolidated financial position of ProNet and its 
    subsidiaries as of the respective dates thereof and the consolidated results
    of operations and cash flows for the periods indicated (except, in the case 
    of unaudited consolidated financial statements for interim periods, for the
    absence of footnotes and subject to adjustments, consisting only of normal,
    recurring accruals, necessary to present fairly such results of operations 
    and cash flows), except that any pro forma financial statements contained in
    such consolidated financial statements are not necessarily indicative of the
    consolidated financial position of ProNet and its subsidiaries as of the 
    respective dates thereof and the consolidated results of operations and cash
    flows for the periods indicated.

    SECTION 4.08.  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as disclosed 
in the ProNet SEC Reports filed prior to the date of this Agreement or as set 
forth in Section 4.08 of the ProNet Disclosure Schedule, since December 31, 
1995, ProNet and its subsidiaries have conducted their respective businesses 
only in the ordinary course and in a manner consistent with past practice and 
there has not been (a) any damage, destruction or loss with respect to any 
assets of ProNet or any of its subsidiaries that, whether or not covered by 
insurance, would constitute a ProNet Material Adverse Effect, (b) any change 
by ProNet or its subsidiaries in their significant accounting policies or (c) 
any other ProNet Material Adverse Effect.

    SECTION 4.09.  ABSENCE OF LITIGATION.  Except as disclosed in the ProNet 
SEC Reports filed prior to the date of this Agreement and as set forth in 
Section 4.09 of the ProNet Disclosure Schedule, there is no claim, action, 
suit, litigation, proceeding, arbitration or, to the knowledge of ProNet, 
investigation of any kind, at law or in equity (including actions or 
proceedings seeking injunctive relief), pending or, to the knowledge of 
ProNet, threatened against ProNet or any of its subsidiaries or any 
properties or rights of ProNet or any of its subsidiaries (except for claims, 
actions, suits, litigation, proceedings, arbitrations, or investigations that 
could not reasonably be expected to have a ProNet Material Adverse Effect), 
and neither ProNet nor any of its subsidiaries is subject to any continuing 
order of, consent decree, settlement agreement or other similar written 
agreement with, or, to the knowledge of ProNet, continuing investigation by, 
any Governmental Entity, or any judgment, order, writ, injunction, decree or 
award of any Governmental Entity or arbitrator, including without limitation 
cease-and-desist or other orders, except for matters that could not 
reasonably be expected to have a ProNet Material Adverse Effect.

    SECTION 4.10.  EMPLOYEE BENEFIT PLANS; LABOR MATTERS.  

         (a)  With respect to each employee benefit plan, program, arrangement,
    contract, employment agreement, stock option, bonus, incentive or similar
    plan (including, without limitation, any "EMPLOYEE BENEFIT PLAN" as defined
    in Section 3(3) of the Employee Retirement Income Security Act of 1974, as
    amended ("ERISA")), maintained or contributed 


                                      26 

<PAGE>

    to by ProNet or any of its subsidiaries, or with respect to which ProNet
    or any of its subsidiaries could reasonable be expected to incur liability
    under ERISA (the "PRONET BENEFIT PLANS"), ProNet has delivered or made 
    available to the Company a true and correct copy of (i) such ProNet Benefit
    Plan, (ii) each trust agreement, if any, relating to such ProNet Benefit 
    Plan, (iii) the most recent summary plan description of each ProNet Benefit
    Plan for which a summary plan description is required, and (iv) the most 
    recent determination letter issued by the IRS with respect to any ProNet 
    Benefit Plan that is intended to be qualified under Section 401 of the Code.
    Section 4.10 of the ProNet Disclosure Schedule contains a complete list of
    all ProNet Benefit Plans.

         (b)  With respect to the ProNet Benefit Plans, no event has occurred
    and, to the knowledge of ProNet, there exists no condition or set of
    circumstances, in connection with which ProNet or any of its subsidiaries
    could be subject to any liability under the terms of such ProNet Benefit
    Plans, ERISA, the Code or any other applicable Law that could reasonably be
    expected to have a ProNet Material Adverse Effect.

         (c)  There are no collective bargaining or other labor union contracts
    to which ProNet or its subsidiaries is a party and no collective bargaining
    agreement is being negotiated by ProNet or any of its subsidiaries.  There
    is no pending or, to the knowledge of ProNet, threatened labor dispute,
    strike or work stoppage against ProNet or any of its subsidiaries that
    could materially interfere with the respective business activities of
    ProNet or any of its subsidiaries.

         (d)  No ProNet Benefit Plan provides retiree medical or retiree life
    insurance benefits that could reasonably be expected to have a ProNet
    Material Adverse Effect and neither ProNet nor any of its subsidiaries is
    contractually or otherwise obligated to provide life insurance and medical
    benefits upon retirement or termination of employment of employees that
    could reasonably be expected to have a ProNet Material Adverse Effect.

         (e)  Neither ProNet nor any of its subsidiaries contributes to or has
    an obligation to contribute to, or has within six years prior to the date
    of this Agreement contributed to or had an obligation to contribute to, an
    employee benefit plan that is or was subject to Title IV of ERISA or
    Section 412 of the Code.

    SECTION 4.11.  TAXES.  Except as set forth in Section 4.11 of the ProNet
Disclosure Schedule: 

         (a)  (i) all Tax  Returns of or with respect to any Tax which is
    required to be filed on or before the date hereof by or with respect to
    ProNet or any its subsidiaries have been duly and timely filed except to
    the extent that a failure to file any such Tax Returns, individually or in
    the aggregate, could not reasonably be expected to have a ProNet Material
    Adverse Effect, (ii) all items of income, gain, loss, deduction and credit
    or other items required to be included in each such Tax Return have been so
    included and all information provided in each such Tax Return is true,
    correct and complete in all material respects except to the extent that a
    failure to include any such items, individually or in the aggregate, could

                                      27 

<PAGE>

    not reasonably be expected to have a ProNet Material Adverse Effect,
    (iii) all Taxes which have become due with respect to the period covered by
    each such Tax Return have been or will be timely paid in full except to the
    extent that the failure to make any such payments, individually or in the
    aggregate, could not reasonably be expected to have a ProNet Material
    Adverse Effect, (iv) all withholding Tax requirements imposed on or with
    respect to ProNet or any of its subsidiaries have been satisfied in full in
    all respects except where the failure to satisfy any such requirements,
    individually or in the aggregate, could not reasonably be expected to have
    a ProNet Material Adverse Effect, and (v) no penalty, interest or other
    charge is or will become due with respect to the late filing of any such
    Tax Return or late payment of any such Tax except for any such penalties,
    interest, or other charges which, individually or in the aggregate, could
    not reasonably be expected to have a ProNet Material Adverse Effect.

         (b)  There is no claim against ProNet or any of its subsidiaries for
    any amount of Taxes, and no assessment, deficiency or adjustment has been
    asserted or proposed with respect to any Tax Return of or with respect to
    ProNet or any of its subsidiaries other than those disclosed (and to which
    are attached true and complete copies of all audit or similar reports) in
    Section 4.11 of the ProNet Disclosure Schedule and other than any such
    claims, assessments, deficiencies, or adjustments which individually or in
    the aggregate could not reasonably be expected to have a ProNet Material
    Adverse Effect.

         (c)  To the best knowledge of ProNet after inquiry, the total amounts
    set up as liabilities for current and deferred Taxes in the financial
    statements referred to in Section 4.07 of this Agreement are sufficient to
    cover the payment of all Taxes, whether or not assessed or disputed, which
    are, or are hereafter found to be, or to have been, due by or with respect
    to ProNet and any of its subsidiaries up to and through the periods covered
    thereby.

         (d)  Except for statutory liens for current Taxes not yet due and for
    Taxes being contested in good faith, no material liens for Taxes exist upon
    the assets of any of ProNet or its subsidiaries.

         (e)  Neither ProNet nor, to the knowledge of ProNet, any of its
    affiliates has taken or agreed to take any action that would prevent the
    Merger from constituting a reorganization qualifying under the provisions
    of Section 368(a) of the Code.

    SECTION 4.12.  PROPERTIES.  Except as set forth in Section 4.12 of the 
ProNet Disclosure Schedule or as specifically described in the ProNet SEC 
Reports, ProNet and its subsidiaries have good and marketable title, free and 
clear of all liens, the existence of which could reasonably be expected to 
have a ProNet Material Adverse Effect, to all their properties and assets 
whether tangible or intangible, real, personal or mixed, reflected in 
ProNet's consolidated financial statements contained in ProNet's most recent 
SEC Report on Form 10-Q as being owned by ProNet and its subsidiaries as of 
the date thereof, other than (a) any properties or assets that have been sold 
or otherwise disposed of since the date of such financial statements, (b) 
liens disclosed in the notes to such financial statements and (c) liens 
arising in the ordinary course of business after the date of 

                                      28 

<PAGE>

such financial statements.  All buildings, and all fixtures, equipment and 
other property and assets that are material to its business on a consolidated 
basis and are held under leases or sub-leases by ProNet or any of its 
subsidiaries (excluding any leases or sub-leases that are terminable by the 
lessor on 30 or fewer days notice) are held under valid instruments 
enforceable in accordance with their respective terms, subject to applicable 
laws of bankruptcy, insolvency or similar laws relating to creditors' rights 
generally and to general principles of equity (whether applied in a 
proceeding in law or equity). 

    SECTION 4.13.  PAGERS.  Section 4.13 of the ProNet Disclosure Schedule 
sets forth the aggregate number of pagers in service in the paging systems of 
ProNet and its subsidiaries as of December 31, 1995.

    SECTION 4.14.  VOTE REQUIRED.  The only votes of the holders of any class 
or series of ProNet capital stock necessary to approve the Merger and this 
Agreement are the affirmative votes of the holders of not less than a 
majority of the outstanding shares of ProNet Common Stock.

    SECTION 4.15.  BROKERS.  No broker, finder or investment banker (other 
than Lehman Brothers) is entitled to any brokerage, finder's or other fee or 
commission in connection with the transactions contemplated by this Agreement 
based upon arrangements made by or on behalf of ProNet.  Prior to the date of 
this Agreement, ProNet has made available to the Company a complete and 
correct copy of all agreements between ProNet and Lehman Brothers pursuant to 
which such firm will be entitled to any payment relating to the transactions 
contemplated by this Agreement.

    SECTION 4.16.  OPINION OF FINANCIAL ADVISOR.  ProNet has received the 
written opinion of Lehman Brothers to the effect that, as of the date of this 
Agreement, the Merger Consideration to be paid by ProNet is fair, from a 
financial point of view, to the holders of ProNet Common Stock.  ProNet will 
promptly deliver a copy of such opinion to the Company.

                                 ARTICLE V.

                                 COVENANTS 

    SECTION 5.01.  AFFIRMATIVE COVENANTS OF THE COMPANY.  The Company hereby 
covenants and agrees that, prior to the Effective Time, unless otherwise 
expressly contemplated by this Agreement or consented to in writing by 
ProNet, the Company will and will cause each of its subsidiaries to:

         (a)  operate its business in the usual and ordinary course consistent
    with past practices except as contemplated by this Agreement or as provided
    in or contemplated by the Company Disclosure Schedule;

         (b)  use all reasonable efforts to preserve substantially intact its
    business organization, maintain its rights and franchises, retain the
    services of its respective officers and key employees and maintain its
    relationships with its respective customers and suppliers;

                                      29 

<PAGE>

         (c)  maintain and keep its properties and assets in as good a repair
    and condition as at present, ordinary wear and tear excepted, and use
    commercially reasonable efforts to maintain supplies and inventories in
    quantities consistent with its customary business practices;

         (d)  use all reasonable efforts to keep in full force and effect
    insurance and bonds comparable in amount and scope of coverage to that
    currently maintained;

         (e)  promptly notify ProNet of any  material change in the condition
    (financial or otherwise), business, properties, assets or liabilities of
    the Company and its subsidiaries or in the operation of the business or the
    properties of the Company and its subsidiaries, any material litigation or
    material governmental complaints, investigations or hearings (or
    communications indicating that the same may be contemplated) involving the
    Company or any of its subsidiaries, any material breach of any
    representation or warranty of the Company contained herein, any material
    change in the status of any of the transactions listed on Section 5.03(e)
    of the Company Disclosure Schedule or any other event that could reasonably
    be expected to result in a Company Material Adverse Effect; 

         (f)  immediately cease and cause to be terminated any existing
    activities, discussions or negotiations with any parties conducted
    heretofore with respect to any Competing Transaction (as defined in Section
    5.03(g)) and take the necessary steps to inform such parties of the
    obligations undertaken in Section 5.03(g); and

         (g)  (i) file all Tax Returns required to be filed on or before the
    Closing Date by or with respect to the Company or any of its subsidiaries
    except to the extent that a failure to file any such Tax Returns,
    individually or in the aggregate, could not reasonably be expected to have
    a Company Material Adverse Effect, (ii) include in each such Tax Return all
    items of income, gain, loss, deduction and credit or other items required
    to be included in each such Tax Return except to the extent that a failure
    to include any such items, individually or in the aggregate, could not
    reasonably be expected to have a Company Material Adverse Effect, (iii)
    timely pay in full all material Taxes which become due pursuant to such Tax
    Returns except to the extent that the failure to make any such payments,
    individually or in the aggregate, could not reasonably be expected to have
    a Company Material Adverse Effect, and (iv) satisfy all withholding
    requirements imposed on or with respect to the Company except where the
    failure to satisfy any such withholding requirements, individually or in
    the aggregate, could not reasonably be expected to have a Company Material
    Adverse Effect.

    SECTION 5.02.  AFFIRMATIVE COVENANTS OF PRONET.  ProNet hereby covenants 
and agrees that, unless otherwise expressly contemplated by this Agreement or 
consented to in writing by the Company, ProNet will and will cause each of 
its subsidiaries to:

         (a)  prior to the Effective Time, operate its business in the usual
    and ordinary course consistent with past practices except as contemplated
    by this Agreement or as provided in or contemplated by the ProNet
    Disclosure Schedule;


                                      30 

<PAGE>

         (b)  prior to the Effective Time, use all reasonable efforts to
    preserve substantially intact its business organization, maintain its
    rights and franchises, retain the services of its respective officers and
    key employees and maintain its relationships with its respective customers
    and suppliers;

         (c)  prior to the Effective Time, maintain and keep its properties and
    assets in as good a repair and condition as at present, ordinary wear and
    tear excepted, and maintain supplies and inventories in quantities
    consistent with its customary business practice;

         (d)  prior to the Effective Time, use all reasonable efforts to keep
    in full force and effect insurance and bonds comparable in amount and scope
    of coverage to that currently maintained;

         (e)  prior to the Effective Time, promptly notify the Company of any
    material change in the condition (financial or otherwise), business,
    properties, assets or liabilities of ProNet and its subsidiaries or in the
    operation of the business or the properties of ProNet and its subsidiaries,
    any material litigation or material governmental complaints, investigations
    or hearings (or communications indicating that the same may be
    contemplated) involving ProNet or its subsidiaries, the breach of any
    representation or warranty of the ProNet Companies contained herein, any
    material change in the status of any of the transactions listed on
    Section 5.04(f) of the ProNet Disclosure Schedule, or any other event that
    could reasonably be expected to result in a ProNet Material Adverse Effect; 

         (f)  on or before June 15, 1996, furnish to the Company a firm
    commitment letter or letters from reputable banks or other financing
    sources, which letter or letters have been accepted by ProNet, committing,
    subject to standard terms and conditions of such letters, to provide to
    ProNet the financing necessary to enable ProNet to consummate the
    transactions contemplated by this Agreement; 

         (g)  consummate the transactions contemplated by the commitment letter
    or letters referred to in Section 5.02(f) so as to permit ProNet and Merger
    Sub to consummate the transactions contemplated hereby; provided that if
    ProNet shall have raised the funds necessary to consummate the transactions
    contemplated by this Agreement from one or more other sources it shall not
    be obligated to consummate the transactions contemplated by the firm
    commitment letter or letters referred to in Section 5.02(f); it being
    understood that ProNet's obligations hereunder and under Section 5.02(f)
    are independent of and not contingent or conditioned upon ProNet's ability
    to obtain any financing or commitments therefor;

         (h)  (i) file all Tax Returns required to be filed on or before the
    Closing Date by or with respect to ProNet or any of its subsidiaries except
    to the extent that a failure to file any such Tax Return, individually or
    in the aggregate, could not reasonably be expected to have a ProNet
    Material Adverse Effect, (ii) include in each such Tax Return all items of
    income, gain, loss, deduction and credit or other items required to be
    included in each such Tax Return except to the extent that a failure to
    include any such items, individually or in the

                                      31 

<PAGE>

    aggregate, could not reasonably be expected to have a ProNet Material 
    Adverse Effect, (iii) timely pay in full all material Taxes which become 
    due pursuant to such Tax Returns except to the extent that the failure to 
    make any such payments, individually or in the aggregate, could not 
    reasonably be expected to have a ProNet Material Adverse Effect, and (iv) 
    satisfy all withholding requirements imposed on or with respect to ProNet 
    except where the failure to satisfy any such withholding requirements, 
    individually or in the aggregate, could not reasonably be expected to have 
    a ProNet Material Adverse Effect; and

         (i)  immediately after the Effective Time, pay in full the principal
    amounts then outstanding with respect to the $10,000,000 in aggregate
    principal amount of the Company's 14% Junior Subordinated Notes issued
    pursuant to the terms of that certain Amended and Restated Subordinated
    Note, Preferred Stock and Warrant Purchase Agreement dated as of August 3,
    1995, together with any accrued and unpaid interest thereon through July
    31, 1996.

    SECTION 5.03.  NEGATIVE COVENANTS OF THE COMPANY.  Except as expressly 
contemplated by this Agreement or otherwise consented to in writing by 
ProNet, from the date of this Agreement until the Effective Time, the Company 
shall not do, and shall not permit any of its subsidiaries to do, any of the 
following:

         (a)  (i) except as set forth on Section 5.03(a) of the Company
    Disclosure Schedule, increase the compensation payable to or to become
    payable to any director; (ii) except with respect to stay bonuses listed on
    Section 5.03(a) of the Company Disclosure Schedule, increase the
    compensation payable or pay bonuses to officers or employees of the Company
    other than in the ordinary course of business; (iii) except as set forth in
    Section 5.03(a) of the Company Disclosure Schedule, grant any severance or
    termination pay to, or enter into any employment or severance agreement
    with, any director, officer or employee; (iv) except as set forth in
    Section 3.10(d) of the Company Disclosure Schedule, establish, adopt or
    enter into any employee benefit plan or arrangement; or (v) except as may
    be required by applicable law, as set forth in Section 3.10(d) of the
    Company Disclosure Schedule, for actions that are required to comply with
    the provisions of Section 6.08 of this Agreement, or such amendments or
    actions that do not materially increase the obligations of the Company and
    its subsidiaries thereunder, amend, or take any other actions (including,
    without limitation, the acceleration of vesting, waiving of performance
    criteria or the adjustment of awards or any other actions permitted upon a
    "CHANGE IN CONTROL" (as defined in the respective plans) of the Company or
    a filing under Section 13(d) or 14(d) of the Exchange Act with respect to
    the Company) with respect to any of the Benefit Plans or any of the plans,
    programs, agreements, policies or other arrangements described in Section
    3.10(d) of this Agreement;

         (b)  declare or pay any dividend on, or make any other distribution in
    respect of, outstanding shares of capital stock or other equity interests,
    except dividends by a wholly owned subsidiary of the Company to the Company
    or another wholly owned subsidiary of the Company;


                                      32 

<PAGE>

         (c)  (i) except as described in Section 3.03(c) of the Company
    Disclosure Schedule, redeem, purchase or otherwise acquire any shares of
    its or any of its subsidiaries' capital stock or any securities or
    obligations convertible into or exchangeable for any shares of its or its
    subsidiaries' capital stock (other than any such acquisition directly from
    any wholly owned subsidiary of the Company in exchange for capital
    contributions or loans to such subsidiary), or any options, warrants or
    conversion or other rights to acquire any shares of its or its
    subsidiaries' capital stock or any such securities or obligations (except
    in connection with the exercise of outstanding stock options or warrants in
    accordance with their terms), (ii) effect any reorganization or
    recapitalization of the Company or any of its subsidiaries, or (iii) split,
    combine or reclassify any of its or its subsidiaries' capital stock or
    issue or authorize or propose the issuance of any other securities in
    respect of, in lieu of or in substitution for, shares of its or its
    subsidiaries' capital stock;

         (d)  (i) except as set forth in Section 3.03(a) herein or as described
    in Section 3.03(c) of the Company Disclosure Schedule, issue (whether upon
    original issue or out of treasury), sell, grant, award, deliver or limit
    the voting rights of any shares of any class of its or its subsidiaries'
    capital stock, any securities convertible into or exercisable or
    exchangeable for any such shares, or any rights, warrants or options to
    acquire any such shares (except for the issuance of shares upon the
    exercise of outstanding stock options or warrants in accordance with their
    terms), (ii) amend or otherwise modify the terms of any such rights,
    warrants or options, or (iii) take any action to accelerate the vesting of
    any stock options;

         (e)  except as set forth on Section 5.03(e) to the Company Disclosure
    Schedule, acquire or agree to acquire (whether pursuant to a definitive
    agreement, a non-binding letter of intent or otherwise), by merging or
    consolidating with, by purchasing an equity interest in or a portion of the
    assets of, or by any other manner, any business or any corporation,
    partnership, association or other business organization or division
    thereof, or otherwise acquire or agree to acquire any assets of any other
    person (other than the purchase of assets from suppliers or vendors in the
    ordinary course of business and consistent with past practice);

         (f)  except as set forth on Section 5.03(f) of the Company Disclosure
    Schedule, sell, lease, exchange, mortgage, pledge, transfer or otherwise
    dispose of, or agree to sell, lease, exchange, mortgage, pledge, transfer
    or otherwise dispose of, any of its assets or any assets of any of its
    subsidiaries, except for pledges or dispositions of assets in the ordinary
    course of business and consistent with past practice;

         (g)  initiate, solicit or encourage (including by way of furnishing
    information or assistance), or take any other action to facilitate,
    directly or indirectly, any inquiries or the making of any proposal or
    offer relating to, or that may reasonably be expected to lead to, any
    Competing Transaction (as defined below), or enter into discussions or
    negotiate with any person or entity in furtherance of such inquiries or to
    obtain a Competing Transaction, or agree to, or endorse, any Competing
    Transaction, or authorize or permit any of the officers, directors,
    employees or agents of the Company or any of its subsidiaries or any


                                      33 

<PAGE>

    investment banker, financial advisor, attorney, accountant or other
    representative retained by the Company or any of the Company's subsidiaries
    to take any such action, and the Company shall immediately notify ProNet of
    all relevant terms of any such inquiries or proposals received by the
    Company or any of its subsidiaries or by any such officer, director,
    employee, agent, investment banker, financial advisor, attorney, accountant
    or other representative relating to any proposed Competing Transaction and
    if such inquiry or proposal is in writing, the Company shall immediately
    deliver or cause to be delivered to ProNet a copy of such inquiry or
    proposal; PROVIDED, HOWEVER, that nothing contained in this subsection (g)
    shall prohibit the Board of Directors of the Company from complying with
    Rule 14e-2 or Rule 14d-9 promulgated under the Exchange Act with regard to
    a Competing Transaction.  For purposes of this Agreement, "COMPETING
    TRANSACTION" shall mean any sale or lease of a material portion of the
    Company's assets, merger, consolidation, share exchange, business
    combination or similar transaction involving the Company or any of its
    subsidiaries or the acquisition in any manner, directly or indirectly, of a
    material interest in any voting securities of, or a material portion of the
    assets of, the Company or any of its subsidiaries, other than the
    transactions contemplated by this Agreement;

         (h)  release any third party from its obligations under any existing
    standstill agreement or arrangement relating to a Competing Transaction or
    otherwise under any confidentiality or other similar agreement relating to
    information material to the Company or any of its subsidiaries;

         (i)  except as set forth on Section 5.03(i) of the Company Disclosure
    Schedule adopt or propose to adopt any amendments to its Certificate of
    Incorporation or its Bylaws;

         (j)  (i) except as set forth on Section 5.03(j) to the Company's
    Disclosure Schedule change any of its significant accounting policies or
    (ii) make or rescind any express or deemed election relating to taxes,
    settle or compromise any claim, action, suit, litigation, proceeding,
    arbitration, investigation, audit or controversy relating to Taxes, or
    change any of its methods of reporting income or deductions for federal
    income tax purposes from those employed in the preparation of the federal
    income tax returns for the taxable year ending December 31, 1994, except,
    in the case of clause (i) or clause (ii), as may be required by Law or
    generally accepted accounting principles;

         (k)  incur any obligation for borrowed money or purchase money
    indebtedness, whether or not evidenced by a note, bond, debenture or
    similar instrument or under any financing lease, whether pursuant to a
    sale-and-leaseback transaction or otherwise, which, together with any fees
    or expenses incurred (whether or not the obligation for payment thereof
    remains outstanding, including prepayment penalties but excluding any
    Expenses the payment for which is provided for in Section 8.05(a) of this
    Agreement) in connection with the transactions contemplated by this
    Agreement and any contemplated acquisitions, would, when aggregated with
    the Company's other indebtedness then outstanding (including the
    liquidation preference of and accrued dividends on the Company's Series A
    Preferred Stock and the principal of and accrued interest on the Company's
    14% Junior Subordinated Notes 

                                      34 

<PAGE>

    and the amount of any prepayment penalties to be paid in respect of such 
    indebtedness as a result of the completion of the transactions contemplated
    hereby), exceed $110 million; or 

         (l)  agree in writing or otherwise to do any of the foregoing.

    SECTION 5.04.  NEGATIVE COVENANTS OF PRONET.  Except as expressly 
contemplated by this Agreement or otherwise consented to in writing by the 
Company, from the date of this Agreement until the Effective Time, ProNet 
shall not do, and shall not permit any of its subsidiaries to do, any of the 
following:

         (a)  knowingly take any action that would result in a failure to
    maintain the eligibility of the ProNet Common Stock for quotation on the
    NASDAQ National Market; 

         (b)  propose to adopt any amendments to its Certificate of
    Incorporation or its Bylaws that could reasonably be expected to delay or
    have an adverse effect on the consummation of the transactions contemplated
    by this Agreement or would otherwise be inconsistent in any material
    respect with the terms and conditions of this Agreement or the other
    agreements or transactions contemplated hereby (it being understood that
    this clause (b) shall not in any respect limit the right and power of
    ProNet to amend its Certificate of Incorporation to increase the authorized
    number of shares of any class of capital stock of ProNet);

         (c)  declare or pay any dividend on, or make any other distribution in
    respect of, outstanding shares of its or its subsidiaries capital stock or
    other equity interests, except dividends by a wholly owned subsidiary of
    ProNet to ProNet or another wholly owned subsidiary of ProNet;

         (d)  (i) except as described in Section 4.03(c) of the ProNet
    Disclosure Schedule, redeem, purchase or otherwise acquire any shares of
    its or any of its subsidiaries' capital stock or any securities or
    obligations convertible into or exchangeable for any shares of its or its
    subsidiaries' capital stock (other than any such acquisition directly from
    any wholly owned subsidiary of ProNet in exchange for capital contributions
    or loans to such subsidiary), or any options, warrants or conversion or
    other rights to acquire any shares of its or its subsidiaries' capital
    stock or any such securities or obligations (except in connection with the
    exercise of outstanding stock options or warrants in accordance with their
    terms), (ii) effect any reorganization or recapitalization of ProNet or any
    of its subsidiaries, or (iii) split, combine or reclassify any of its or
    its subsidiaries' capital stock or issue or authorize or propose the
    issuance of any other securities in respect of, in lieu of or in
    substitution for, shares of its or its subsidiaries' capital stock;

         (e)  except as set forth on Section 5.04(e) of the ProNet Disclosure
    Schedule, sell, lease, exchange, mortgage, pledge, transfer or otherwise
    dispose of, or agree to sell, lease, exchange, mortgage, pledge, transfer
    or otherwise dispose of, any of its assets or any assets of any of its
    subsidiaries, except for pledges or dispositions of assets in the ordinary
    course of business and consistent with past practice;


                                      35 

<PAGE>

         (f)  except as set forth in Section 5.04(f) of the ProNet Disclosure
    Schedule, (i) prior to the filing of the Registration Statement, acquire or
    agree to acquire (other than pursuant to the terms of a non-binding letter
    of intent the execution by ProNet of which would not cause a delay in the
    declaration of effectiveness of the Registration Statement), by merging or
    consolidating with, by purchasing an equity interest in all or a  portion
    of the assets of, or by any other manner, any business or any corporation,
    partnership, association or other business organization or division
    thereof, and (ii) after the filing of the Registration Statement and prior
    to the Effective Time, acquire or agree to acquire by merging or
    consolidating with, by purchasing an equity interest in all or a portion of
    the assets of, or by any other manner, any business or any corporation,
    partnership, association or other business organization or division thereof
    (A) the principal operations of which are not connected with the paging,
    enhanced paging ( personal communications services) or tracking businesses,
    or (B) with respect to any such corporation, partnership, association or
    other business organization or division thereof the principal operations of
    which are connected with paging, enhanced paging (personal communications
    services) or tracking businesses, (1) for which the aggregate consideration
    to be paid by ProNet or any subsidiary thereof exceeds $20 million with
    respect to any individual transaction or $40 million in the aggregate and
    (2) that would cause a delay in the declaration of effectiveness of the
    Registration Statement; or

         (g)  agree in writing or otherwise to do any of the foregoing.

    SECTION 5.05.  ACCESS AND INFORMATION.

         (a)  The Company shall, and shall cause its subsidiaries to,
    (i) afford to ProNet and ProNet's officers, directors, employees,
    accountants, consultants, legal counsel, agents and other representatives
    (collectively, the "PRONET REPRESENTATIVES") access during ordinary
    business hours and at other reasonable times, upon reasonable prior notice,
    to the officers, employees, accountants, agents, properties, offices and
    other facilities of the Company and its subsidiaries and to the books and
    records thereof and (ii) furnish promptly to ProNet and the ProNet
    Representatives such information concerning the business, properties,
    contracts, records and personnel of the Company and its subsidiaries
    (including, without limitation, financial, operating and other data and
    information) as may be reasonably requested, from time to time, by ProNet.

         (b)  ProNet shall, and shall cause its subsidiaries to, (i) afford to
    the Company and the Company's officers, directors, employees, accountants,
    consultants, legal counsel, agents and other representatives (collectively,
    the "COMPANY REPRESENTATIVES") access during ordinary business hours and at
    other reasonable times, upon reasonable prior notice, to the officers,
    employees, accountants, agents, properties, offices and other facilities of
    ProNet and its subsidiaries and to the books and records thereof and
    (ii) furnish promptly to the Company and the Company Representatives such
    information concerning the business, properties, contracts, records and
    personnel of ProNet and its subsidiaries (including, without limitation,
    financial, operating and other data and information) as may be reasonably
    requested, from time to time, by the Company.


                                      36 

<PAGE>

         (c)  No investigation by the parties hereto made heretofore or
    hereafter shall affect the representations and warranties of the parties
    that are contained herein and each such representation and warranty shall
    survive such investigation.

         (d)  Each party to this Agreement (the ProNet Companies being
    considered one party for purposes of this Section 5.05(d)) shall hold in
    confidence all nonpublic information received from the other party to this
    Agreement unless required to be disclosed by law or until such time as such
    information is otherwise publicly available and, if this Agreement is
    terminated, each party will deliver to the other party all documents, work
    papers and other materials (including copies) obtained by such party or on
    its behalf from the other party as a result of this Agreement or in
    connection herewith, whether so obtained before or after the execution
    hereof.

                                 ARTICLE VI.

                            ADDITIONAL AGREEMENTS

    SECTION 6.01.  PRESENTATION TO STOCKHOLDERS.  The Company shall, promptly 
after the date of this Agreement, take all actions necessary in accordance 
with Delaware Law and its Certificate of Incorporation and Bylaws to present 
the Merger and this Agreement to the holders of Company Series A Preferred 
Stock, Company Series B Preferred Stock and Company Common Stock for their 
consideration and approval either pursuant to the consent of the requisite 
percentage of holders of Company Series A Preferred Stock, Company Series B 
Preferred Stock and Company Common Stock or by the vote thereof at a meeting 
of the Company's stockholders duly called and convened to act on the Merger 
and this Agreement (the "COMPANY STOCKHOLDERS' MEETING").  In like manner, 
ProNet shall, promptly after the date of this Agreement, take all actions 
necessary in accordance with Delaware Law, ProNet's Certificate of 
Incorporation and Bylaws and the rules of The Nasdaq Stock Market to present 
the Merger and this Agreement to the holders of ProNet Common Stock for their 
consideration and approval either pursuant to the consent of the requisite 
percentage of holders of ProNet Common Stock or by the vote thereof at a 
meeting of ProNet's stockholders duly called and convened to act on the 
Merger and this Agreement (the "PRONET STOCKHOLDERS' MEETING").  The Company 
and ProNet shall consult with each other in connection with such meetings.  
The Company and ProNet shall use their reasonable best efforts to solicit 
from their respective stockholders proxies in favor of the approval and 
adoption of this Agreement and to secure the vote or consent of stockholders 
required by Delaware Law and their respective Certificates of Incorporation 
and Bylaws and by the rules of the NASDAQ National Market to approve and 
adopt the Merger and this Agreement.  The Company and ProNet shall cause 
their respective Boards of Directors (a) not to withdraw, modify or change 
their recommendations of this Agreement or the Merger and (b) to continue to 
recommend to the respective stockholders of the Company and ProNet the 
approval and adoption of this Agreement and the Merger on the terms and 
conditions set forth in this Agreement.


                                      37 

<PAGE>

    SECTION 6.02.  REGISTRATION STATEMENT; PROXY STATEMENT/PROSPECTUS.

         (a)  As promptly as practicable after the execution of this Agreement,
    ProNet shall prepare and file with the SEC a Registration Statement
    containing a joint Proxy Statement/Prospectus (the "PROXY
    STATEMENT/PROSPECTUS") for stockholders of the Company and ProNet in
    connection with (i) the registration under the Securities Act of the offer,
    sale and delivery of ProNet Common Stock and, if required by the Securities
    Act, the Assumed Warrants that have been previously registered by Company
    under the Securities Act to be issued in the Merger and (ii) the vote of
    the requisite percentage of the stockholders of the Company and ProNet with
    respect to the Merger and this Agreement.  ProNet and the Company shall
    each use all reasonable efforts to cause the Registration Statement to
    become effective as promptly as practicable, and shall take any action
    required to be taken in order to comply with any applicable federal or
    state securities laws in connection with the issuance of shares of ProNet
    Common Stock in the Merger.  ProNet and the Company shall each furnish all
    information concerning itself, its subsidiaries and the holders of its
    capital stock as the other may reasonably request in connection with such
    actions.  As promptly as practicable after the Registration Statement shall
    have become effective, the Company and ProNet shall mail (the "MAILING
    DATE") the Proxy Statement/Prospectus to the holders of Company Common
    Stock, Company Series A Preferred Stock, Common Stock Warrants, or ProNet
    Common Stock, as the case may be, of record at least 20 calendar days prior
    to the Company Stockholders' Meeting and the ProNet Stockholders' Meeting. 
    It shall be a condition to the mailing of the Proxy Statement/Prospectus
    that ProNet and the Company shall have received the comfort letters
    described in Section 6.11 of this Agreement.  The Proxy
    Statement/Prospectus shall include the recommendation of the Board of
    Directors of the Company and ProNet in favor of the Merger. 

         (b)  None of the information supplied or to be supplied by the Company
    for inclusion or incorporation by reference in (i) the Registration
    Statement will, at the time the Registration Statement is filed with the
    SEC and at the time it becomes effective under the Securities Act, contain
    any untrue statement of a material fact or omit to state any material fact
    required to be stated therein or necessary to make the statements made
    therein not misleading and (ii) the Proxy Statement/Prospectus will, at the
    Mailing Date and at the time of the Company Stockholders' Meeting and the
    ProNet Stockholders' Meeting,  contain any untrue statement of a material
    fact or omit to state any material fact required to be stated therein or
    necessary to make the statements made therein, in light of the
    circumstances in which they were made, not misleading.  If at any time
    prior to the Company Stockholders' Meeting or the ProNet Stockholders'
    Meeting any event or circumstance relating to the Company or any of its
    affiliates, or its or their respective officers or directors, should be
    discovered by the Company that should be set forth in an amendment to the
    Registration Statement or a supplement to the Proxy Statement/Prospectus,
    the Company shall promptly inform ProNet.  All documents that the Company
    is responsible for filing with any Governmental Entity in connection with
    the transactions contemplated hereby, including without limitation the
    Proxy Statement/Prospectus to the extent that the information contained
    therein relates to the Company and its subsidiaries or the transactions
    contemplated hereby, will comply as to form in all material respects with
    the provisions of 

                                      38 

<PAGE>

    applicable law, including applicable provisions of the Securities Act, the
    Exchange Act and the rules and regulations thereunder, and each such 
    document required to be filed with any Governmental Entity other than the 
    SEC will comply with the provisions of applicable law as to the information
    required to be contained therein.

         (c)  None of the information supplied or to be supplied by ProNet for
    inclusion or incorporation by reference in (i) the Registration Statement 
    will, at the time the Registration Statement is filed with the SEC and at
    the time it becomes effective under the Securities Act, contain any untrue
    statement of a material fact or omit to state any material fact required to
    be stated therein or necessary to make the statements therein not
    misleading and (ii) the Proxy Statement/Prospectus will, at the Mailing
    Date and at the time of the Company Stockholders' Meeting and the ProNet
    Stockholders' Meeting, contain any untrue statement of a material fact or
    omit to state any material fact required to be stated therein or necessary
    to make the statements contained therein, in light of the circumstances in
    which they were made, not misleading.  If at any time prior to the Company
    Stockholders' Meeting or the ProNet Stockholders' Meeting  any event or
    circumstance relating to ProNet or any of its affiliates, or its or their
    respective officers or directors, should be discovered by ProNet that
    should be set forth in an amendment to the Registration Statement or a
    supplement to the Proxy Statement/Prospectus, ProNet shall promptly inform
    the Company.  All documents that ProNet is responsible for filing with any
    Governmental Entity in connection with the transactions contemplated
    hereby, including without limitation the Registration Statement to the
    extent that the information contained therein relates to ProNet and its
    subsidiaries or the transactions contemplated hereby, will comply as to
    form in all material respects with the provisions of applicable law,
    including applicable provisions of the Securities Act, the Exchange Act and
    the rules and regulations thereunder, and each such document required to be
    filed with any Governmental Entity other than the SEC will comply with the
    provisions of applicable law as to the information required to be contained
    therein.

    SECTION 6.03.  APPROPRIATE ACTION; CONSENTS; FILINGS.

         (a)  The Company and ProNet shall each use, and shall cause each of
    their respective subsidiaries to use, all reasonable efforts promptly
    (i) to take, or cause to be taken, all appropriate action, and do, or cause
    to be done, all things necessary, proper or advisable under applicable Law
    or otherwise to consummate and make effective the transactions contemplated
    by this Agreement, (ii) to obtain from any Governmental Entities any
    consents, licenses, permits, waivers, approvals, authorizations or orders
    required to be obtained by the Company or ProNet, respectively, or any of
    their respective subsidiaries in connection with the authorization,
    execution, delivery and performance of this Agreement and the consummation
    of the transactions contemplated hereby, including, without limitation, the
    Merger, and (iii) to make all necessary filings, and thereafter make any
    other required submissions, with respect to this Agreement and the Merger
    required under (A) the Securities Act and the Exchange Act and the rules
    and regulations thereunder, and any other applicable federal or state
    securities laws, (B) the HSR Act, (C) the Communications Act and (D) any
    other applicable Law; and ProNet and the Company shall cooperate with each
    other in connection with the making of all such filings, including
    providing copies of all such 

                                      39 

<PAGE>
    documents to the nonfiling party and its advisors prior to filing and, 
    if requested, shall accept all reasonable additions, deletions or changes
    suggested in connection therewith.  The Company and ProNet shall furnish 
    all information required for any application or other filing to be made 
    pursuant to the rules and regulations of any applicable Law in connection
    with the transactions contemplated by this Agreement.

         (b)  ProNet and the Company agree, and shall cause each of their
    respective subsidiaries, to cooperate and to use all reasonable efforts to
    contest and resist any action, including legislative, administrative or
    judicial action, and to have vacated, lifted, reversed or overturned any
    decree, judgment, injunction or other order (whether temporary, preliminary
    or permanent) (an "ORDER") that is in effect and that restricts, prevents
    or prohibits the consummation of the Merger or any other transactions
    contemplated by this Agreement, including, without limitation, by
    vigorously pursuing all available avenues of administrative and judicial
    appeal and all available legislative action.  ProNet and the Company also
    agree to take any and all reasonable actions, including, without
    limitation, the disposition of assets or the withdrawal from doing business
    in particular jurisdictions, required by regulatory authorities as a
    condition to the granting of any approvals required in order to permit the
    consummation of the Merger or as may be required to avoid, lift, vacate or
    reverse any legislative or judicial action that would otherwise cause any
    condition to Closing not to be satisfied; PROVIDED, HOWEVER, that in no
    event shall either party take, or be required to take, any action that
    could reasonably be expected to have a Company Material Adverse Effect or a
    ProNet Material Adverse Effect.

         (c)  The Company and ProNet shall each promptly give (or shall cause
    their respective subsidiaries to give) any notices regarding the Merger,
    this Agreement or the transactions contemplated hereby to third parties
    required by Law or by any material contract, license, lease or other
    material agreement to which it is a party or by which it is bound, and use,
    and cause its subsidiaries to use, all reasonable efforts to obtain any
    third party consents (i) necessary, proper or advisable to consummate the
    transactions contemplated by this Agreement, (ii) otherwise required under
    any contracts, licenses, leases or other agreements in connection with the
    consummation of the transactions contemplated by this Agreement or
    (iii) required to prevent a Company Material Adverse Effect or a ProNet
    Material Adverse Effect, respectively, from occurring.

         (d)  If any party shall fail to obtain any third party consent
    described in subsection (c) above, such party shall use all reasonable
    efforts, and shall take any such actions reasonably requested by the other
    parties, to limit the adverse effect upon the Company and ProNet, their
    respective subsidiaries, and their respective businesses resulting, or
    which could reasonably be expected to result, from the failure to obtain
    such consent.





                                      40 

<PAGE>

    SECTION 6.04.  AFFILIATES; TAX TREATMENT.  

         (a)  The Company shall use all reasonable efforts to obtain and
    deliver to ProNet an executed letter agreement, substantially in the form
    of EXHIBIT A hereto, (i) by the earlier of August 31, 1996 and the Closing
    Date, from each person identified as an affiliate of the Company in Section
    3.12 of the Company Disclosure Schedule, and (ii) by the Closing Date, from
    any other person who is an affiliate of the Company on the Closing Date;
    provided that no such letter agreement shall be required from any such
    person who does not own any capital stock of the Company on the Closing
    Date.

         (b)  ProNet shall be entitled to place legends as specified in such
    letter agreement on the certificates evidencing any ProNet Common Stock to
    be received by such affiliates pursuant to the terms of this Agreement, and
    to issue appropriate stop transfer instructions to the transfer agent of
    the ProNet Common Stock, consistent with the terms of such letter
    agreements.

         (c)  Neither the Company nor ProNet nor any of their respective
    subsidiaries or other affiliates shall (i) knowingly take any action, or
    knowingly fail to take any action, that would jeopardize qualification of
    the Merger as a reorganization within the meaning of Section 368(a) of the
    Code or (ii) knowingly enter into any contract, agreement, commitment or
    arrangement with respect to the foregoing.

         (d)  At or before the Closing, ProNet shall provide an officer's
    certificate, in form and substance reasonably acceptable to ProNet, to
    Kirkland & Ellis to assist such counsel in rendering the written opinion
    provided for in Section 7.01(g) of this Agreement and the Company shall
    provide an officer's certificate, in form and substance reasonably
    satisfactory to the Company, to Vinson & Elkins L.L.P. to assist such
    counsel in rendering the written opinion provided for in Section 7.01(f) of
    this Agreement.

    SECTION 6.05.  PUBLIC ANNOUNCEMENTS.  The initial press release relating 
to this Agreement shall be a joint press release and thereafter, to the 
extent practicable, ProNet and the Company shall consult with each other 
before issuing any press release or otherwise making any written or 
electronic public statements with respect to this Agreement or the Merger and 
shall not issue any such press release or make any such written or electronic 
public statement prior to such consultation.

    SECTION 6.06.  NASDAQ LISTING.  ProNet shall use all reasonable efforts 
to cause the shares of ProNet Common Stock to be issued in the Merger to be 
approved for quotation on The Nasdaq Stock Market prior to the Effective Time.

    SECTION 6.07.  STATE TAKEOVER STATUTES.  The Company will take all steps 
necessary to exempt the transactions contemplated by this Agreement from, and 
if necessary challenge the validity of, any applicable state takeover law, 
including, without limitation, Section 203 of Delaware Law.  The Company 
shall take all actions necessary under Delaware Law, including approving the 
transactions contemplated by this Agreement and the Voting Agreement, to 
ensure that the 

                                      41 

<PAGE>

prohibitions on business combinations set forth in Section 203 of Delaware 
Law do not, or will not, apply to the transactions contemplated by this 
Agreement.

    SECTION 6.08.  ASSUMPTION OF OBLIGATIONS TO ISSUE STOCK.

         (a)  At the Effective Time, automatically and without any action on
    the part of the holder thereof, (i) each then outstanding stock option
    (other than options under which an Affiliated Stockholder is an optionee)
    shall be assumed by ProNet and shall become an option to purchase that
    number of shares of ProNet Common Stock obtained by multiplying the number
    of shares of Company Common Stock issuable upon the exercise of such option
    by the Public Stockholder Common Stock Exchange Ratio at an exercise price
    per share equal to the per share exercise price of such option divided by
    the Public Stockholder Common Stock Exchange Ratio and otherwise upon the
    same terms and conditions as such outstanding options to purchase Company
    Common Stock, and (ii) each then outstanding stock option under which an
    Affiliated Stockholder is an optionee shall be assumed by ProNet and shall
    become an option to purchase that number of shares of ProNet Common Stock
    obtained by multiplying the number of shares of Company Common Stock
    issuable upon the exercise of such option by the Affiliated Stockholder
    Common Stock Exchange Ratio at an exercise price per share equal to the per
    share exercise price of such option divided by the Affiliated Stockholder
    Common Stock Exchange Ratio and otherwise upon the same terms and
    conditions as such outstanding options to purchase Company Common Stock;
    provided, however, that in the case of any option to which Section 421 of
    the Code applies by reason of the qualifications under Section 422 or 423
    of such Code, the exercise price, the number of shares purchasable pursuant
    to such option and the terms and conditions of exercise of such option
    shall be determined in order to comply with Section 424(a) of the Code.

         (b)  At the Effective Time, automatically and without any action on
    the part of the holder thereof, (i) each then outstanding Common Stock
    Warrant (other than Common Stock Warrants held of record or beneficially by
    the Affiliated Stockholders) shall be assumed by ProNet and shall become a
    warrant to purchase that number of shares of ProNet Common Stock obtained
    by multiplying the number of shares of Company Common Stock issuable upon
    the exercise of such Common Stock Warrant by the Public Stockholder Common
    Stock Exchange Ratio at an exercise price per share equal to the per share
    exercise price of the Common Stock Warrant divided by the Public
    Stockholder Common Stock Exchange Ratio and otherwise upon the same terms
    and conditions as such outstanding Common Stock Warrant and (ii) each then
    outstanding Common Stock Warrant held of record or beneficially by an
    Affiliated Stockholder shall be assumed by ProNet and shall become a
    warrant to purchase that number of shares of ProNet Common Stock obtained
    by multiplying the number of shares of Company Common Stock issuable upon
    the exercise of such Common Stock Warrant by the Affiliated Stockholder
    Common Stock Exchange Ratio at an exercise price per share equal to the per
    share exercise price of the Common Stock Warrant divided by the Affiliated
    Stockholder Common Stock Exchange Ratio and otherwise upon the same terms
    and conditions as such outstanding Common Stock Warrant.  


                                      42 

<PAGE>

         (c)  ProNet shall take all corporate actions necessary to reserve for
    issuance a sufficient number of shares of ProNet Common Stock for delivery
    upon exercise of the stock options assumed by ProNet pursuant to Section
    6.08(a) above  (the "ASSUMED STOCK OPTIONS") and any warrants assumed by
    ProNet pursuant to Section 6.08(b) (the "ASSUMED WARRANTS").

         (d)  As promptly as practicable after the Effective Time, but in no
    event later than 90 days after the Effective Time, ProNet shall file a
    Registration Statement on Form S-8 (or any successor or other appropriate
    forms) with respect to the shares of ProNet Common Stock subject to the
    Assumed Stock Options and shall use its best efforts to maintain the
    effectiveness of such registration statement for so long as such Assumed
    Stock Options remain outstanding.

         (e)  Each of the Stock Option Plans and Common Stock Warrants
    providing for the issuance or grant of Assumed Stock Options or Assumed
    Warrants shall be assumed as of the Effective Time by ProNet with such
    amendments thereto as may be required to reflect the Merger.

    SECTION 6.09.  MERGER SUB.  Prior to the Effective Time, Merger Sub shall 
not conduct any business or make any investments other than as specifically 
contemplated by this Agreement and will not have any assets (other than a DE 
MINIMIS amount of cash paid to Merger Sub for the issuance of its stock to 
ProNet) or liabilities.

    SECTION 6.10.  INDEMNIFICATION AND INSURANCE. 

         (a)  The Company hereby indemnifies and holds harmless ProNet and its
    directors and officers who sign the Registration Statement, from and
    against any loss, claim, damage, cost, liability, obligation or expense
    (including reasonable attorneys' fees and costs of investigation) to which
    any such indemnified party may become subject under the Securities Act, the
    Exchange Act or otherwise, insofar as such loss, claim, damage, cost,
    liability, obligation or expense or actions in respect thereof arises out
    of or is based upon any untrue statement or alleged untrue statement of a
    material fact supplied by such indemnifying party and contained or
    incorporated by reference in the Registration Statement or Proxy
    Statement/Prospectus or  arises out of or is based upon the omission or
    alleged omission to state therein a material fact required to be stated
    therein or necessary to make the statements therein with respect to such
    indemnifying party not misleading or, in the case of the Proxy
    Statement/Prospectus, necessary to make the statements therein with respect
    to such indemnifying party, in light of the circumstances under which they
    were made, not misleading.

         (b)  ProNet hereby indemnifies and holds harmless the Company and its
    directors and officers from and against any loss, claim, damage, cost,
    liability, obligation or expense (including reasonable attorneys' fees and
    costs of investigation) to which any such indemnified party may become
    subject under the Securities Act, the Exchange Act or otherwise, insofar as
    such loss, claim, damage, cost, liability, obligation or expense or 

                                      43 

<PAGE>

    actions in respect thereof arises out of or is based upon any untrue 
    statement or alleged untrue statement of a material fact relating supplied
    by such indemnifying party and contained or incorporated by reference in the
    Registration Statement or the Proxy Statement/Prospectus or arises out of
    or is based upon the omission or alleged omission to state therein a
    material fact required to be stated therein or necessary to make the
    statements therein with respect to such indemnifying party not misleading
    or, in the case of the Proxy Statement/Prospectus, necessary to make the
    statements therein with respect to such indemnifying party, in light of the
    circumstances under which they were made, not misleading.

         (c)  The Company and ProNet agree that, for a period of four years
    after the Closing Date:

              (i)  ProNet shall cause the Surviving Corporation to keep in
         effect provisions in the Surviving Corporation's Certificate of
         Incorporation and Bylaws providing for exculpation of director and
         officer liability and indemnification of officers and directors to the
         fullest extent permitted under Delaware Law, which provisions shall be
         acceptable to the Company, and which provisions shall not be amended
         except as required by applicable law or except to make changes
         permitted by law that would enlarge the right of indemnification or
         exculpation.  ProNet hereby guarantees the performance by the
         Surviving Corporation of all of the Surviving Corporation's
         obligations to provide indemnification.

              (ii) Prior to the Effective Time, the Company shall be entitled
         to purchase officers' and directors' liability insurance policies,
         provided that the amount of liabilities covered thereby shall not
         exceed $5,000,000 and provided further that the initial annual premium
         with respect to such policies shall not exceed $210,000.  ProNet shall
         cause the Surviving Corporation to, at the Effective Time, purchase a
         six year run-off policy from the same carrier as the carrier in effect
         at the Effective Time (which price for such run-off policy shall not
         exceed $400,000) and to not terminate such policy prior to the sixth
         anniversary of the Effective Time;

              (iii)     In addition to and without limiting the foregoing
         provisions of this Section 6.10(c), but subject in all respects of the
         remaining provisions of this Section 6.10(c)(iii), ProNet shall, to
         the fullest extent permitted under Delaware Law, indemnify, pay on
         behalf of, defend and hold harmless the current officers and directors
         of the Company (collectively, the "INDEMNIFIED PARTIES") against all
         losses, expenses, claims, damages, liabilities or amounts (including
         without limitation costs of defense, enforcement of rights hereunder
         and reasonable legal fees and expenses) that are paid in settlement
         of, or otherwise incurred in connection with, any claim, action, suit,
         proceeding or investigation by reason of the fact that such
         Indemnified Party was a director or officer of the Company prior to
         the Effective Time and arising out of or in any way relating to the
         transactions contemplated hereby (a "CLAIM") and shall pay expenses in
         advance of the final disposition of any such Claim to each Indemnified
         Party upon receipt from the Indemnified Party to whom expenses are

                                      44 

<PAGE>

         advanced of an undertaking as required by Delaware Law to repay such
         advances if legally required to do so.  Notwithstanding the foregoing,
         as a condition to such indemnification and payment of expenses, each
         Indemnified Party shall, prior to any such indemnification or payment
         by ProNet, use reasonable efforts (A) to be indemnified, defended and
         held harmless, and receive payment for such expenses, with respect to
         such Claims by (1) the Company and (2) any other entity that
         reasonably could be expected to provide such indemnification and
         payment of expenses (the Company and such other entities being called
         herein the "OTHER INDEMNIFYING PARTIES") and (B) to be reimbursed or
         otherwise paid for any such amounts pursuant to (1) the policy or
         policies of insurance currently maintained by the Company or purchased
         by the Company pursuant to Section 6.10(c)(ii) hereof or (2) any other
         policies of insurance that reasonably could be expected to provide
         such coverage.  In the event and to the extent that an Indemnified
         Party is so indemnified and held harmless, and/or receives payment for
         such expenses, by an Other Indemnifying Party or is reimbursed or is
         otherwise paid by the issuer of any such policies, ProNet shall not be
         obligated hereunder, and no third party (including, without
         limitation, any Other Indemnifying Party or insurer) shall be entitled
         to any subrogation or other rights against ProNet.  For purposes of
         this Section 6.10(c)(iii), in the event any Claim is brought against
         any Indemnified Party, ProNet shall be entitled to participate therein
         at its own expense.  In such event, the Indemnified Parties shall
         cooperate with and provide all information reasonably requested by
         ProNet.  In the event that the defense of such Claim is not assumed by
         an Other Indemnifying Party, ProNet may, at its option (provided that
         (i) such Claim does not involve a criminal matter and (ii) ProNet
         acknowledges to the Indemnified Party in writing that it will
         indemnify the Indemnified Party without reservation of rights other
         than subrogation rights against third parties), assume the defense of
         any Claim, with counsel reasonably satisfactory to the Indemnified
         Party.  After notice from ProNet to the Indemnified Party of the
         election by ProNet to assume the defense thereof, ProNet shall not be
         liable to the Indemnified Party under this Section 6.10(c)(iii) for
         any legal or other expenses subsequently incurred by the Indemnified
         Party in connection with the defense thereof except for reasonable
         costs of investigation or otherwise as provided below.  The
         Indemnified Party shall have the right to employ separate counsel in
         connection with such Claim, but the fees and expenses of such counsel
         incurred after notice from ProNet of its assumption of the defense
         thereof shall be at the expense of the Indemnified Party unless 
         (a) the employment of counsel by the Indemnified Party has been
         authorized by ProNet, (b) the Indemnified Party shall have reasonably
         concluded that there is, under applicable standards of professional
         conduct, an actual conflict between the interests of ProNet and the
         Indemnified Party in the conduct of the defense of such action, (c)
         ProNet shall not have employed counsel to assume the defense of such
         action, or (d) ProNet shall not be vigorously defending such claims,
         in each of which cases the reasonable fees and expenses of the
         Indemnified Party's separate counsel shall be at the expense of
         ProNet.  In any case where the expense of defending a Claim is to be
         borne by ProNet, the Indemnified Parties as a group shall be entitled
         to no more than one law firm (in addition to local counsel) to
         represent them with respect to such 

                                      45 

<PAGE>

         Claim unless there are, under applicable standards of professional 
         conduct (as reasonably determined by counsel to the Indemnified 
         Parties), separate and distinct interests or legal positions of any two
         or more Indemnified Parties, in which event such additional counsel as 
         may be reasonably required by reason of such separate or distinct 
         interests or legal positions may be retained by the Indemnified 
         Parties. ProNet shall not be liable to indemnify the Indemnified 
         Parties under this Section 6.10(c)(iii) for any amounts paid in any 
         settlement of any Claim if such settlement is effected without ProNet's
         written consent, which consent shall not be unreasonably withheld.  
         ProNet shall be permitted to settle any Claim, except that ProNet shall
         not settle any Claim (i) without first acknowledging to the Indemnified
         Party in writing that it will indemnify the Indemnified Party without 
         reservation of rights other than subrogation rights against third 
         parties and (ii) in any manner which would impose any non-monetary 
         penalty or material limitation (or any monetary penalty with respect to
         which the Indemnified Party is not entitled to indemnification pursuant
         to this Section 6.10(c)(iii)) on the Indemnified Party without the 
         Indemnified Party's consent.  Any Indemnified Party wishing to claim 
         indemnification under this Section 6.10(c)(iii) upon learning of any 
         such Claim shall promptly notify ProNet (although the failure so to 
         notify ProNet shall not relieve ProNet from any liability that ProNet 
         may have under Section 6.10(c)(iii), except to the extent such failure
         materially prejudices ProNet's position with respect to such Claim), 
         and shall deliver to ProNet the undertaking specified above in this
         Section 6.10(c)(iii).

              (iv) The provisions of this Section 6.10(c) are intended to be in
         addition to the rights otherwise available to the current officers and
         directors of the Company by law, charter, statute or bylaw, and shall
         operate for the benefit of, and shall be enforceable by, each party
         entitled to indemnification hereunder, his heirs and his
         representatives.

         SECTION 6.11.  COMFORT LETTERS.

         (a)  The Company shall use all reasonable commercial efforts to cause
    Ernst & Young, L.L.P. to deliver a letter, dated as of the date of the
    Proxy Statement/Prospectus, and addressed to the Company and ProNet and
    their respective Boards of Directors, in form and substance reasonably
    satisfactory to ProNet and customary in scope and substance for agreed upon
    procedures letters delivered by independent public accountants in
    connection with registration statements and proxy statements similar to the
    Proxy Statement/Prospectus.

         (b)  ProNet shall use all reasonable commercial efforts to cause Ernst
    & Young, L.L.P. to deliver a letter dated as of the date of the Proxy
    Statement/Prospectus, and addressed to ProNet and the Company and their
    respective Boards of Directors, in form and substance reasonably
    satisfactory to the Company and customary in scope and substance for agreed
    upon procedures letters delivered by independent public accountants in
    connection with registration statements and proxy statements similar to the
    Proxy Statement/Prospectus.


                                      46 

<PAGE>
                                ARTICLE VII.

                             CLOSING CONDITIONS
    
    SECTION 7.01.  CONDITIONS TO OBLIGATIONS OF EACH PARTY UNDER THIS 
AGREEMENT.  The respective obligations of each party to effect the Merger and 
the other transactions contemplated hereby shall be subject to the 
satisfaction at or prior to the Effective Time of the following conditions 
(any or all of which may be waived by the parties hereto in writing, in whole 
or in part, to the extent permitted by applicable Law):

         (a)  EFFECTIVENESS OF THE REGISTRATION STATEMENT.  The Registration
    Statement shall have been declared effective by the SEC under the
    Securities Act.  No stop order suspending the effectiveness of the
    Registration Statement shall have been issued by the SEC and no proceedings
    for that purpose shall have been initiated by the SEC.

         (b)  STOCKHOLDER APPROVAL.  The Merger and this Agreement shall have
    been approved and adopted by the requisite vote of the stockholders of the
    Company and of ProNet. 

         (c)  NO ORDER.  No Governmental Entity or federal or state court of
    competent jurisdiction shall have enacted, issued, promulgated, enforced or
    entered any statute, rule, regulation, executive order, decree, judgment,
    injunction or other order (whether temporary, preliminary or permanent)
    which is in effect and which has the effect of making the Merger illegal or
    otherwise prohibiting consummation of the Merger.

         (d)  HSR ACT.  The applicable waiting period under the HSR Act with
    respect to the transactions contemplated by this Agreement shall have
    expired or been terminated.

         (e)  COMMUNICATIONS ACT.  The applications for transfer of the FCC
    Licenses and the other transactions contemplated herein shall have been
    approved by Final Order of the FCC pursuant to Section 3.10(d) of the
    Communications Act. 

         (f)  PRONET TAX OPINION.  ProNet shall have received from Vinson &
    Elkins L.L.P. a written opinion, dated as of the Mailing Date, to the
    effect that the Merger, when effected in accordance with this Agreement,
    will qualify as a reorganization under Section 368(a) of the Code and
    ProNet, Merger Sub and the Company will constitute parties to such
    reorganization, and a copy of such opinion shall have been delivered to the
    Company.

         (g)  COMPANY TAX OPINION.  The Company shall have received from
    Kirkland & Ellis a written opinion, dated as of the Mailing Date, to the
    effect that the Merger, when effected in accordance with this Agreement,
    will qualify as a reorganization under Section 368(a) of the Code and
    ProNet, Merger Sub and the Company will constitute parties to such
    reorganization, and a copy of such opinion shall have been delivered to
    ProNet.


                                      47 

<PAGE>

         (h)  NASDAQ APPROVAL.  The shares of ProNet Common Stock to be issued
    in the Merger shall have been approved for quotation on The Nasdaq Stock
    Market.

    SECTION 7.02.  ADDITIONAL CONDITIONS TO OBLIGATIONS OF THE PRONET 
COMPANIES.  The obligations of the ProNet Companies to effect the Merger and 
the other transactions contemplated by this Agreement are also subject to the 
following conditions (any or all of which may be waived by ProNet in writing, 
in whole or in part):

         (a)  REPRESENTATIONS AND WARRANTIES.  Each of the representations and
    warranties of the Company contained in this Agreement shall have been true
    and correct in all material respects as of the date made.  The ProNet
    Companies shall have received a certificate of the President and the Chief
    Executive Officer of the Company, in their capacities as such, dated the
    Closing Date, to the effect that each of the representations and warranties
    of the Company contained in this Agreement were true and correct in all
    material respects as of the date made.

         (b)  AGREEMENTS AND COVENANTS.  The Company shall have performed or
    complied in all material respects with all agreements and covenants
    required by this Agreement to be performed or complied with by it on or
    prior to the Effective Time.  The ProNet Companies shall have received a
    certificate of the President and the Chief Executive Officer of the
    Company, in their capacities as such, dated the Closing Date, to such
    effect.

         (c)  CONSENTS. All consents, authorizations, orders and approvals of,
    or filings or registrations with, any governmental commission, board or
    other regulatory body required in connection with the execution, delivery
    and performance of this Agreement shall have been obtained or made, except
    for filings in connection with the Merger and any other documents required
    to be filed after the Effective Time and except where the failure to have
    obtained or made any such consent, authorization, order, approval, filing
    or registration would not have a material adverse effect on either (i) the
    business of ProNet and its subsidiaries, taken as a whole, following the
    Effective Time or (ii) the business of the Company and its subsidiaries,
    taken as a whole.

         (d)  EXERCISE OF SERIES B PREFERRED STOCK WARRANTS.  All of the 
    Series B Preferred Stock Warrants shall have been exercised in full.

    SECTION 7.03.  ADDITIONAL CONDITIONS TO OBLIGATIONS OF THE COMPANY.  The 
obligations of the Company to effect the Merger and the other transactions 
contemplated hereby are also subject to the following conditions (any or all 
of which may be waived by the Company in writing, in whole or in part):

         (a)  REPRESENTATIONS AND WARRANTIES.  Each of the representations and
    warranties of the ProNet Companies contained in this Agreement shall have
    been true and correct in all material respects as of the date made.  The
    Company shall have received a certificate of the President and the Chief
    Financial Officer of each of the ProNet Companies, in their capacities as
    such, dated as of the Effective Time, to the effect that each of the


                                      48 

<PAGE>

    representations and warranties of the Company contained in this Agreement
    were true and correct in all material respects as of the date made.

         (b)  AGREEMENTS AND COVENANTS.  The ProNet Companies shall have
    performed or complied in all material respects with all agreements and
    covenants required by this Agreement to be performed or complied with by
    them on or prior to the Effective Time.  The Company shall have received a
    certificate of the President and the Chief Financial Officer of each of the
    ProNet Companies, in their capacities as such, dated the date of the
    Effective Time, to that effect.

         (c)  CONSENTS. All consents, authorizations, orders and approvals of,
    or filings or registrations with, any governmental commission, board or
    other regulatory body required in connection with the execution, delivery
    and performance of this Agreement shall have been obtained or made, except
    for filings in connection with the Merger and any other documents required
    to be filed after the Effective Time and except where the failure to have
    obtained or made any such consent, authorization, order, approval, filing
    or registration would not have a material adverse effect on the business of
    ProNet and its subsidiaries, taken as a whole, following the Effective
    Time.


                               ARTICLE VIII.

                     TERMINATION, AMENDMENT AND WAIVER

    SECTION 8.01.  TERMINATION.  This Agreement may be terminated at any time 
prior to the Effective Time, whether before or after approval of this 
Agreement and the Merger by the stockholders of the Company and/or ProNet:

         (a)  by mutual written consent of ProNet and the Company;

         (b)  by ProNet, if any representation or warranty of the Company
    contained in this Agreement was not true and correct in all material
    respects as of the date made or upon a material breach of any covenant or
    agreement on the part of the Company set forth in this Agreement, in either
    case such that the conditions set forth in Section 7.02(a) or Section
    7.02(b) of this Agreement would not be satisfied (a "TERMINATING COMPANY
    BREACH");

         (c)  by the Company, if any representation or warranty of ProNet
    contained in this Agreement was not true and correct in all material
    respects as of the date made or upon a material breach of any covenant or
    agreement on the part of the ProNet Companies set forth in this Agreement,
    in either case such that the conditions set forth in Section 7.03(a) or
    Section 7.03(b) of this Agreement would not be satisfied (a "TERMINATING
    PRONET BREACH");

         (d)  by either ProNet or the Company, if there shall be any Order
    which is final and nonappealable preventing the consummation of the Merger,
    unless the party seeking to terminate this Agreement has not complied with
    its obligations under Section 6.03(b) of this Agreement;


                                      49 


<PAGE>

         (e)  by the Company, if the stockholders of ProNet shall not have
    approved the Merger and this Agreement on or before the last day of a
    period that is 20 business days and seven calendar days following the date
    on which ProNet places in the mail the Proxy Statement/Prospectus for
    delivery to the stockholders of ProNet and the Company, and by either
    ProNet or the Company, if the Merger shall not have been consummated before
    September 15, 1996; provided, however, that this Agreement may be extended
    by ProNet to a date not later than November 15, 1996, if the failure to
    consummate the Merger by September 15, 1996 shall have resulted from (i)
    the failure to receive any consents or approvals required under the
    Communications Act on or before September 14, 1996, or (ii) the failure of
    the SEC to declare the Registration Statement effective on or before
    August 9, 1996, by ProNet's giving written notice of such extension to the
    Company by September 15, 1996, and, upon execution of the escrow agreement
    described below, depositing the sum of $2,000,000 (the "Deposit") into an
    escrow account to be established with NationsBank Texas, N.A., as escrow
    agent (the "Escrow Agent"), pursuant to the terms of an escrow agreement on
    the Escrow Agent's standard form to be entered into by and among ProNet,
    the Company and the Escrow Agent, which escrow agreement shall provide that
    (i) ProNet shall be entitled to receive the Deposit and all accrued
    interest thereon if either (A) the Merger is consummated on or before
    November 15, 1996 or (B) ProNet terminates this Agreement pursuant to
    Section 8.01(b) as a result of a Terminating Company Breach occurring after
    ProNet's giving such written notice of extension and there shall not have
    occurred a Terminating ProNet Breach and (ii) the Company shall be entitled
    to receive the Deposit and all accrued interest thereon if this Agreement
    is terminated for any reason other than as set forth in clause (i)(B)
    above;

         (f)  by either ProNet or the Company, if the Merger and this
    Agreement, when presented to the holders of Company Common Stock, Company
    Series A Preferred Stock or the Company Series B Preferred Stock or the
    holders of the ProNet Common Stock for their consideration, whether by vote
    or by consent, shall fail to receive the requisite vote or consent for
    approval and adoption by the stockholders of the Company or ProNet; 

         (g)  by ProNet, if (i) the Board of Directors of the Company
    withdraws, modifies or changes its recommendation of this Agreement or the
    Merger in a manner adverse to the ProNet Companies or shall have resolved
    to do any of the foregoing or the Board of Directors of the Company shall
    have recommended to the stockholders of the Company any Competing
    Transaction or resolved to do so; or (ii) a tender offer or exchange offer
    for outstanding shares of Company Common Stock is commenced, and the Board
    of Directors of the Company does not recommend that stockholders not tender
    their shares into such tender or exchange offer;

         (h)  by the Company, if the Board of Directors of ProNet withdraws,
    modifies or changes its recommendation of this Agreement or the Merger in a
    manner adverse to the Company or shall have resolved to do any of the
    foregoing;

         (i)  by the Company if all of the following conditions are met:  (i)
    the Average Closing Price is less than $20.75; (ii) the Company notifies
    ProNet in writing prior to 5:00 

                                      50

<PAGE>

    p.m. Dallas, Texas time on the business day immediately preceding the 
    scheduled Closing Date (as provided in Section 1.02 hereof)  that the 
    Company elects to terminate this Agreement pursuant to this Section 
    8.01(i); and (iii) by 5:00 p.m. Dallas, Texas time on the second 
    business day following ProNet's receipt of the written notice described 
    in the immediately preceding clause (ii), ProNet does not notify the 
    Company in writing that ProNet elects to exercise its Termination 
    Blocking Option.  As used herein, "TERMINATION BLOCKING OPTION" means 
    ProNet's option to provide additional shares of ProNet Common Stock so 
    that the Affiliated Stockholder Common Stock Exchange Ratio shall be 
    equal to the quotient obtained by dividing $4.26 by the Average Closing 
    Price;

         (j)  by the Company if ProNet shall not have filed the Registration
    Statement with the SEC by June 15, 1996, unless there shall have occurred a
    Terminating Company Breach which breach shall have caused ProNet's failure
    to file the Registration Statement by such date; 

         (k)  by the Company if ProNet shall not have mailed to the
    stockholders of ProNet and the Company the Proxy Statement/Prospectus
    within five calendar days of the SEC's declaration of the effectiveness of
    the Registration Statement unless there shall have occurred a Terminating
    Company Breach which breach shall have caused ProNet's failure to mail the
    Proxy Statement/Prospectus by such date;

         (l)  by the Company, if both Jackie R. Kimzey and David J. Vucina
    shall have ceased to be employed by ProNet for any reason (whether
    voluntary or involuntary) other than their death or disability;

         (m)  by the Company, if prior to the date that ProNet places in the
    mail the Proxy Statement/Prospectus for delivery to the stockholders of
    ProNet and the Company (the "Mailing Date"), there shall have been a
    material adverse change in the financial condition, results of operation or
    business of ProNet and its subsidiaries taken as a whole; provided however,
    that the foregoing right to terminate this Agreement shall be deemed waived
    if it is not exercised by written notice to ProNet prior to the Mailing
    Date;

         (n)  by ProNet, if prior to the Mailing Date there shall have been a
    material adverse change in the financial condition, results of operation or
    business of the Company and its subsidiaries taken as a whole; provided
    however, that the foregoing right to terminate this Agreement shall be
    deemed waived if it is not exercised by written notice to the Company prior
    to the Mailing Date;

         (o)  by the Company, if ProNet shall refuse to consummate the Merger
    on the second business day following the day on which the last to be
    fulfilled or waived of the conditions set forth in Article VII shall be
    fulfilled or waived in accordance herewith (other than the conditions with
    respect to actions the respective parties hereto will take at the Closing);
    or

                                      51

<PAGE>

         (p)  by ProNet, if the Company shall refuse to consummate the Merger
    on the second business day following the day on which the last to be
    fulfilled or waived of the conditions set forth in Article VII shall be
    fulfilled or waived in accordance herewith (other than the conditions with
    respect to actions the respective parties hereto will take at the Closing).

    SECTION 8.02.  EFFECT OF TERMINATION.  Except as provided in Section
5.05(d), Section 8.05 and Section 9.01 of this Agreement, in the event of the
termination of this Agreement pursuant to Section 8.01, this Agreement shall
forthwith become void, there shall be no liability on the part of the ProNet
Companies or the Company or any of their respective officers or directors to the
other and all rights and obligations of any party hereto shall cease, except
that nothing herein shall relieve any party from its obligations with respect to
any breach of this Agreement.

    SECTION 8.03.  AMENDMENT.  This Agreement may be amended by the Company and
ProNet by action taken by or on behalf of their respective Boards of Directors
at any time prior to the Effective Time; PROVIDED, HOWEVER, that, after approval
of the Merger by the stockholders of the Company or the stockholders of ProNet,
any such amendment shall be subject to the provisions of Section 251 of Delaware
Law.  This Agreement may not be amended except by an instrument in writing
signed by the Company and ProNet.

    SECTION 8.04.  WAIVER.  At any time prior to the Effective Time, any party
hereto may (a) extend the time for the performance of any of the obligations or
other acts of the other party or parties hereto, (b) waive any inaccuracies in
the representations and warranties of the other party or parties contained
herein or in any document delivered pursuant hereto and (c) waive compliance by
the other party or parties with any of the agreements or conditions contained
herein.  Any such extension or waiver shall be valid only if set forth in an
instrument in writing signed by the party or parties to be bound thereby.  For
purposes of this Section 8.04, the ProNet Companies as a group shall be deemed
to be one party.

    SECTION 8.05.  FEES, EXPENSES AND OTHER PAYMENTS.

         (a)  All Expenses (as defined in paragraph (b) of this Section 8.05)
    incurred by the parties hereto shall be borne solely and entirely by the
    party which has incurred such Expenses; PROVIDED, HOWEVER, that the ProNet
    Companies as a group shall each be responsible for paying two-thirds of all
    Expenses related to printing, filing (including FCC  filing fees) and
    mailing the Registration Statement and the Proxy Statement/Prospectus and
    all SEC, HSR Act and other regulatory filing fees incurred in connection
    with the Registration Statement and the Proxy Statement/Prospectus (other
    than fees and disbursements of counsel, accountants and investment bankers)
    and the Company shall be responsible for paying one-third of all such
    Expenses.

         (b)  "EXPENSES" as used in this Agreement shall include all reasonable
    out-of-pocket expenses (including, without limitation, all reasonable fees
    and expenses of counsel, accountants, investment bankers, experts and
    consultants to a party hereto and its affiliates) incurred by a party or on
    its behalf in connection with or related to the authorization, 

                                      52

<PAGE>

    preparation, negotiation, execution and performance of this Agreement, 
    the preparation, printing, filing and mailing of the Registration 
    Statement and the Proxy Statement/Prospectus, the solicitation of 
    stockholder approvals and all other matters related to the consummation 
    of the transactions contemplated hereby.

         (c)  The Company agrees that if:

              (i)  this Agreement is terminated pursuant to Section 8.01(f) and
         prior to such termination the Company's stockholders have not voted
         not to adopt this Agreement either by written consent or at the
         Company Stockholders' Meeting and, prior to the presentment of the
         Merger and this Agreement to the holders of Company Common Stock
         pursuant to Section 6.01 herein, the Company after the date hereof
         shall have furnished information to, or entered into discussions or
         negotiations with, any person or entity with respect to a Competing
         Transaction and the Board of Directors of the Company shall not have
         reaffirmed its recommendation to the stockholders of the Company with
         respect to the transactions contemplated by this Agreement by the time
         of such presentment;

              (ii) (A) prior to the Effective Time, a court of competent
         jurisdiction, pursuant to any order, decree, injunction or other
         action, enjoins or otherwise prohibits ProNet's enforcement of its
         rights to enforce the Voting Agreement or this Agreement and/or
         determines that the covenants of the Company contained in Section
         5.03(g) hereof are invalid, illegal or unenforceable in any respect,
         (B) there has not occurred a Terminating ProNet Breach as determined
         by the court referenced in the immediately preceding clause (A)
         concurrently with the issuance of the injunction or prohibition or the
         rendering of the determination referenced in such clause (A) (which
         determination shall be based upon the party seeking such determination
         having sustained the burden of proof with respect to such issue) and
         (C) within 275 days after the issuance, rendering or taking of such
         order, decree, injunction or other such action, a Competing
         Transaction is consummated pursuant to which the per share
         consideration to be received by the holders of any class of
         outstanding capital stock of the Company is higher than the per share
         consideration to be received by such stockholders pursuant to the
         terms of this Agreement (it being understood that the per share
         consideration being paid to the holders of the Company Common Stock
         shall be deemed to be $5.50 for purposes of this paragraph) or any
         person shall have acquired beneficial ownership or the right to
         acquire beneficial ownership of, or any "GROUP" (as such term is
         defined under Section 13(d) of the Exchange Act and the rules and
         regulations promulgated thereunder), shall have been formed which
         beneficially owns, or has the right to acquire beneficial ownership
         of, outstanding shares of capital stock of the Company then
         representing more than 30% of the combined power to vote generally for
         the election of directors;

              (iii)     ProNet terminates this Agreement pursuant to
         Section 8.01(g) hereof; or

                                      53

<PAGE>

              (iv) (A) ProNet terminates this Agreement pursuant to Section
         8.01(b) (provided that at the time of such termination ProNet is not
         in material breach of any material term hereof) and (B) within 275
         days after such termination (1) a Competing Transaction is consummated
         pursuant to which the per share consideration to be received by the
         holders of any class of outstanding capital stock of the Company is
         higher than the per share consideration to be received by such
         stockholders pursuant to the terms of this Agreement (it being
         understood that the per share consideration being paid to the holders
         of the Company Common Stock shall be deemed to be $5.50 for purposes
         of this paragraph) or (2) any person shall have acquired beneficial
         ownership or the right to acquire beneficial ownership of, or any
         "GROUP" (as such term is defined under Section 13(d) of the Exchange
         Act and the rules and regulations promulgated thereunder), shall have
         been formed which beneficially owns, or has the right to acquire
         beneficial ownership of, outstanding shares of capital stock of the
         Company then representing more than 30% of the combined power to vote
         generally for the election of directors;

    then in any such case the Company shall pay to ProNet $3,500,000.

         (d)  Any payment required to be made pursuant to Section 8.05(c) of
    this Agreement shall be made as promptly as practicable but not later than
    20 business days after termination of this Agreement, and shall be made by
    wire transfer of immediately available funds to an account designated by
    ProNet.  Such payment shall not relieve the Company of the obligation it
    may have if the agreement is terminated because of a Terminating Company
    Breach.

         (e)  The parties hereto agree and acknowledge that upon a termination
    of this Agreement by the Company pursuant to any of Sections 8.01(c), (h),
    (j), (k) or (o) hereof, or upon any Terminating ProNet Breach the Company
    shall be entitled to any damages whether at law or at equity as a court of
    competent jurisdiction may determine.

                                     ARTICLE IX.

                                  GENERAL PROVISIONS

    SECTION 9.01.  EFFECTIVENESS OF REPRESENTATIONS, WARRANTIES AND AGREEMENTS. 


         (a)  Except as set forth in Section 9.01(b) of this Agreement, the
    representations, warranties, covenants and agreements of each party hereto
    shall remain operative and in full force and effect regardless of any
    investigation made by or on behalf of any other party hereto, any person
    controlling any such party or any of their officers, directors,
    representatives or agents whether prior to or after the execution of this
    Agreement.

         (b)  The representations, warranties, covenants and agreements in this
    Agreement shall terminate at the Effective Time or upon the termination of
    this Agreement pursuant to Article VIII, except that the agreements set
    forth in Articles I and II and Sections 6.08 and 


                                      54

<PAGE>

     6.10 shall survive the Effective Time and those set forth in Sections 
     5.05(d), 8.02 and 8.05 and Article IX hereof shall survive termination.

    SECTION 9.02.  NOTICES.  All notices and other communications given or made
pursuant hereto shall be in writing and shall be deemed to have been duly given
upon receipt, if delivered personally, sent by nationally recognized overnight
courier service, mailed by registered or certified mail (postage prepaid, return
receipt requested) to the parties at the following addresses ( or at such other
address for a party as shall be specified by like changes of address) or sent by
electronic transmission to the telecopier number specified below:

         (a)  If to either of the ProNet Companies, to:

              ProNet Inc.
              6340 LBJ Freeway
              Dallas, Texas  75240
              Attention:  Chief Executive Officer
              General Counsel
              Telecopier No.:  (214) 774-0651

         with copies to:

              Vinson & Elkins L.L.P.
              3700 Trammell Crow Center
              2001 Ross Avenue
              Dallas, Texas  75201-2975
              Attention:  Jeffrey A. Chapman
              Telecopier No.: (214) 220-7716

              Gurman, Blask & Freedman
              Suite 500
              1400 Sixteenth Street, N.W.
              Washington, D.C.
              Attention: Jerome K. Blask
              Telecopier No.:  (202) 462-1784

         (b)  If to the Company, to:

              Teletouch Inc.
              110 North College, Suite 200
              Tyler, Texas  75202
              Attention:  Chief Executive Officer
              Telecopier No.:  (903) 595-8853

                                      55

<PAGE>

         with copies to:

              Kirkland & Ellis
              200 East Randolph Drive
              Chicago, Illinois  60601
              Attention:  William S. Kirsch, P.C.
              Telecopier No.: (312) 861-2200

              Bracewell & Patterson, L.L.P.
              711 Louisiana Street
              Suite 2900
              Houston, Texas  77002
              Attention:  Thomas D. Manford, III
              Telecopier No.:  (713) 221-1212

              DeMartino, Finkelstein, Rosen & Virga
              1818 N. Street, N. W., Suite 400
              Washington, D.C.  20036
              Attention:  Ralph DeMartino
              Telecopier No.:  (202) 659-1290

              Blooston, Mordofsky, Jackson & Dickens
              2120 L Street, N.W., Suite 300
              Washington, D.C.  20037
              Attention:  Harold Mordofsky
              Telecopier No.:  (202) 828-5520

    SECTION 9.03.  CERTAIN DEFINITIONS.  For the purposes of this Agreement,
the term:

         (a)  "AFFILIATE" means a person that directly or indirectly, through
    one or more intermediaries, controls, is controlled by, or is under common
    control with, the first mentioned person;

         (b)  "BUSINESS DAY" means any day other than a day on which banks in
    the State of New York or the State of Texas are authorized or obligated to
    be closed;

         (c)  "CONTROL" (including the terms "CONTROLLED," "CONTROLLED BY" and
    "UNDER COMMON CONTROL WITH") means the possession, directly or indirectly
    or as trustee or executor, of the power to direct or cause the direction of
    the management or policies of a person, whether through the ownership of
    stock or as trustee or executor, by contract or credit arrangement or
    otherwise;

         (d)  "KNOWLEDGE" or "KNOWN" shall mean, with respect to any matter in
    question, if an executive officer of the Company or ProNet, as the case may
    be, has actual knowledge of such matter;

                                      56

<PAGE>

         (e)  "PERSON" means an individual, corporation, partnership,
    association, trust, unincorporated organization, other entity or group (as
    defined in Section 13(d) of the Exchange Act);

         (f)  "PROXY STATEMENT/PROSPECTUS" or "JOINT PROXY
    STATEMENT/PROSPECTUS" shall mean a joint proxy statement/prospectus or
    joint information statement/prospectus included in the Registration
    Statement at the time the Registration Statement is declared effective
    under the Securities Act and meeting the requirements of Schedule 14A or
    Schedule 14C of the SEC's Proxy Rules promulgated pursuant to the Exchange
    Act:

         (g)  "REGISTRATION STATEMENT" shall mean a registration statement of
    ProNet on Form S-4 filed with the SEC pursuant to the Securities Act for
    the purpose of registering thereunder the offering and sale of the ProNet
    Common Stock to be issued pursuant to the Merger;

         (h)  "SIGNIFICANT SUBSIDIARY" means any subsidiary of the Company or
    ProNet, as the case may be, that would constitute a Significant Subsidiary
    of such party within the meaning of Rule 1-02 of Regulation S-X of the SEC;

         (i)  "SUBSIDIARY" or "SUBSIDIARIES" of the Company, ProNet, the
    Surviving Corporation or any other person, means any corporation,
    partnership, joint venture or other legal entity of which the Company,
    ProNet, the Surviving Corporation or any such other person, as the case may
    be (either alone or through or together with any other subsidiary), owns,
    directly or indirectly, 50% or more of the stock or other equity interests
    the holders of which are generally entitled to vote for the election of the
    board of directors or other governing body of such corporation or other
    legal entity;  and

         (j)  "TAX" or "TAXES" shall mean any and all taxes, charges, fees,
    levies, assessments, duties or other amounts payable to any federal, state,
    local or foreign taxing authority or agency, including, without limitation,
    (i) income, franchise, profits, gross receipts, minimum, alternative
    minimum, estimated, ad valorem, value added, sales, use, service, real or
    personal property, capital stock, license, payroll, withholding,
    disability, employment, social security, workers compensation, unemployment
    compensation, utility, severance, excise, stamp, windfall profits, transfer
    and gains taxes, (ii) customs, duties, imposts, charges, levies or other
    similar assessments of any kind, and (iii) interest, penalties and
    additions to tax imposed with respect thereto.

    SECTION 9.04.  HEADINGS.  The headings contained in this Agreement are for
reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.

    SECTION 9.05.  SEVERABILITY.  If any term or other provision of this 
Agreement is invalid, illegal or incapable of being enforced by any rule of 
law or public policy, all other conditions and provisions of this Agreement 
shall nevertheless remain in full force and effect so long as the economic or 
legal substance of the transactions contemplated hereby is not affected in 
any manner materially adverse to any party.  Upon such determination that any 
term or other provision is invalid, 

                                      57

<PAGE>

illegal or incapable of being enforced, the parties hereto shall negotiate in 
good faith to modify this Agreement so as to effect the original intent of 
the parties as closely as possible in an acceptable manner to the end that 
transactions contemplated hereby are fulfilled to the extent possible.

    SECTION 9.06.  ENTIRE AGREEMENT. This Agreement (together with the
Exhibits, the Company Disclosure Schedule and the ProNet Disclosure Schedule),
constitute the entire agreement of the parties, and supersede all prior
agreements and undertakings, both written and oral, among the parties, with
respect to the subject matter of this Agreement.

    SECTION 9.07.  ASSIGNMENT.  This Agreement shall not be assigned by
operation of law or otherwise.

    SECTION 9.08.  PARTIES IN INTEREST.  This Agreement shall be binding upon
and inure solely to the benefit of each party hereto and the beneficiaries of
the provisions of Section 6.10 herein, and nothing in this Agreement, express or
implied, is intended to or shall confer upon any other person any right, benefit
or remedy of any nature whatsoever under or by reason of this Agreement.

    SECTION 9.09.  FAILURE OR INDULGENCE NOT WAIVER; REMEDIES CUMULATIVE.  No
failure or delay on the part of any party hereto in the exercise of any right
hereunder shall impair such right or be construed to be a waiver of, or
acquiescence in, any breach of any representation, warranty or agreement herein,
nor shall any single or partial exercise of any such right preclude other or
further exercise thereof or of any other right.  All rights and remedies
existing under this Agreement are in addition to, and not exclusive of, any
rights or remedies otherwise available.

    SECTION 9.10.  GOVERNING LAW.  This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Delaware, regardless of
the laws that might otherwise govern under applicable principles of conflicts of
law.

    SECTION 9.11.  COUNTERPARTS.  This Agreement may be executed in multiple
counterparts, and by the different parties hereto in separate counterparts, each
of which when executed shall be deemed to be an original but all of which taken
together shall constitute one and the same agreement.

    SECTION 9.12.  SPECIFIC PERFORMANCE.  The parties hereby acknowledge and
agree that the failure of any party to this Agreement to perform the provisions
in accordance with their specific terms or to otherwise breach such provisions,
including its failure to take all actions as are necessary on its part to the
consummation of the Merger, will cause irreparable injury to the other parties
to this Agreement for which damages, even if available, will not be an adequate
remedy.  Accordingly, each of the parties hereto hereby consents to the issuance
of injunctive relief by any court of competent jurisdiction to compel
performance of any party's obligations, including an injunction to prevent
breaches, and to the granting by any such court of the remedy of specific
performance of the terms and conditions hereof.

                                      58

<PAGE>

    IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement to
be executed as of the date first written above by their respective officers
thereunto duly authorized.

                             PRONET INC. 


                             By: /s/ Jackie R. Kimzey
                             Name:   Jackie R. Kimzey
                             Title:  Chairman and Chief Executive Officer


                             PRONET SUBSIDIARY, INC. 


                             By: /s/ Jackie R. Kimzey
                             Name:   Jackie R. Kimzey
                             Title:  Chairman and Chief Executive Officer


                             TELETOUCH COMMUNICATIONS, INC.


                             By: /s/ Robert M. McMurrey
                             Name:   Robery M. McMurrey
                             Title: Chief Executive Officer

                                      59

<PAGE>

                                       ANNEX A

                               Affiliated Stockholders


Continental Illinois Venture Corporation, a Delaware corporation
CIVC Partners I, a Delaware general partnership
GM Holdings, LLC, a Tennessee limited liability company
Rainbow Resources, Inc., a Texas corporation
Robert M. McMurrey
G. David Higginbotham
Marcus D. Wedner
Christopher J. Perry
V. William Archer
Charles C. Green
Clifford E. McFarland
Michael Rosen
Smith Barney Individual Retirement Account FBO:  Bruce C. Stevens
Smith Barney Individual Retirement Account FBO:  Celeste G. Stevens
Patricia K. Fleming Trust
Mark D. Fleming
Leonard G. Friedel
Andrew J. Bahnfleth

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