METROCALL INC
S-4, 1997-09-22
RADIOTELEPHONE COMMUNICATIONS
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<PAGE>   1
 
  AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON SEPTEMBER 22, 1997.
 
                                                        REGISTRATION NO.
================================================================================
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                                METROCALL, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                <C>                                <C>
            DELAWARE                             4812                            54-1215634
 (STATE OR OTHER JURISDICTION OF     (PRIMARY STANDARD INDUSTRIAL             (I.R.S. EMPLOYER
 INCORPORATION OR ORGANIZATION)       CLASSIFICATION CODE NUMBER)          IDENTIFICATION NUMBER)
</TABLE>
 
                            ------------------------
 
                             6677 RICHMOND HIGHWAY
                           ALEXANDRIA, VIRGINIA 22306
                                 (703) 660-6677
         (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING
            AREA CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
 
                            WILLIAM L. COLLINS, III
                            CHIEF EXECUTIVE OFFICER
                                METROCALL, INC.
                             6677 RICHMOND HIGHWAY
                           ALEXANDRIA, VIRGINIA 22306
                                 (703) 660-6677
           (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)
                            ------------------------
 
                                With a copy to:
 
<TABLE>
<S>                                <C>                                <C>
     GEORGE P. STAMAS, ESQ.                  MARK A. SOLLS                   JEFFREY A. CHAPMAN
   WILMER, CUTLER & PICKERING         VICE PRESIDENT AND GENERAL                 MARK EARLY
       2445 M STREET, N.W.                      COUNSEL                    VINSON & ELKINS L.L.P.
     WASHINGTON, D.C. 20037                   PRONET INC.                 3700 TRAMMELL CROW CENTER
         (202) 663-6000                    6340 LBJ FREEWAY                   2001 ROSS AVENUE
                                          DALLAS, TEXAS 75340                DALLAS, TEXAS 75201
                                            (972) 687-2100                     (214) 220-7700
</TABLE>
 
                            ------------------------
 
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE OF THE SECURITIES TO THE
PUBLIC:  As soon as practicable after
the effective date of this Registration Statement.
 
     If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box. [ ]
                            ------------------------
 
                        CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
============================================================================================================
<S>                                            <C>             <C>              <C>          <C>
                                                                                  PROPOSED
                                                                                  MAXIMUM
                                                               PROPOSED MAXIMUM  AGGREGATE      AMOUNT OF
             TITLE OF SECURITIES                AMOUNT TO BE    OFFERING PRICE    OFFERING    REGISTRATION
               TO BE REGISTERED                 REGISTERED(1)    PER SHARE(1)     PRICE(1)       FEE(2)
 
<CAPTION>
- ------------------------------------------------------------------------------------------------------------
<S>                                            <C>             <C>              <C>          <C>
Common Stock, par value $0.01 per share.......   12,306,388         $6.875      $84,606,418      $25,638
============================================================================================================
</TABLE>
 
(1) Estimated pursuant to Rule 457(c) and Rule 457(f)(1) solely for the purpose
    of calculating the registration fee at the average of the high and low
    prices per share of Metrocall common stock, par value $.01 per share, on
    September 15, 1997 as reported on the Nasdaq Stock Market's National Market.
 
(2) Pursuant to Rule 457(o), the registration fee is calculated on the basis of
    the maximum aggregate offering price of all the shares of Metrocall Common
    Stock being registered as set forth in footnote 1.
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
================================================================================
<PAGE>   2
 
                               [METROCALL LOGO]
 
                                METROCALL, INC.
                             6677 RICHMOND HIGHWAY
                              ALEXANDRIA, VA 22306
 
                                                               November   , 1997
 
Dear Stockholder:
 
     You are cordially invited to attend the Special Meeting of Stockholders of
Metrocall, Inc. ("Metrocall") to be held on December 17, 1997 at the
Ritz-Carlton, Pentagon City, 1250 South Hayes Street, Arlington, Virginia at
9:00 a.m., local time. You will be asked at this meeting to consider and vote
upon (i) the Agreement and Plan of Merger dated as of August 8, 1997 (the
"Merger Agreement") between Metrocall and ProNet Inc., a Delaware corporation
("ProNet"), (ii) an amendment (the "Charter Amendment") to the Amended and
Restated Certificate of Incorporation of Metrocall to increase the number of
authorized shares of Metrocall common stock, par value $.01 per share
("Metrocall Common Stock") by 20,000,000 shares, from 60,000,000 shares to
80,000,000 shares, (iii) an amendment (the "Option Plan Amendment") to
Metrocall's 1996 Stock Option Plan to increase the number of shares of Metrocall
Common Stock that may be issued thereunder by 2,000,000 shares from 2,000,000
shares to 4,000,000 shares and (iv) an amendment (the "ESPP Amendment") to
Metrocall's Employee Stock Purchase Plan to increase the number of shares of
Metrocall Common Stock that may be issued thereunder by 700,000 shares from
300,000 shares to 1,000,000 shares.
 
     The accompanying Joint Proxy Statement/Prospectus provides a detailed
description of the Merger Agreement and information regarding other matters to
be considered at the meeting. A copy of the Merger Agreement is attached to the
Joint Proxy Statement/Prospectus as Exhibit A.
 
     Your Board of Directors has carefully reviewed and considered the terms and
conditions of the proposed Merger. We believe that the Merger is fair to
Metrocall's stockholders, have unanimously approved the Merger Agreement and the
Merger and recommend that you vote FOR approval and adoption of the Merger
Agreement. We also recommend that you vote FOR the Charter Amendment, FOR the
Option Plan Amendment and FOR the ESPP Amendment.
 
     Your vote on these matters is very important. The Merger and the Charter
Amendment must be approved and adopted by a majority of the issued and
outstanding shares of Metrocall Common Stock so a failure to vote is equivalent
to a vote against the Merger. We urge you to review carefully the enclosed
materials and to return your proxy promptly. Stockholders with questions
regarding the Merger or other transactions or matters described herein may
contact Shirley B. White, Assistant Secretary of Metrocall, at (703) 660-6677.
 
     Whether or not you plan to attend the meeting, please sign and promptly
return your proxy card in the enclosed postage paid envelope. If you attend the
meeting, you may vote in person if you wish, even though you have previously
returned your proxy.
 
                                          Sincerely,
 
                                          Richard M. Johnston
                                          Chairman of the Board
<PAGE>   3
 
                                  PRONET INC.
                                6340 LBJ FREEWAY
                              DALLAS, TEXAS 75240
 
To the Stockholders of ProNet Inc.:
 
     Enclosed are a Notice of Special Meeting of Stockholders, a Joint Proxy
Statement and Prospectus ("Proxy Statement/Prospectus"), and a Proxy for a
Special Meeting of Stockholders (the "Meeting") of ProNet Inc., a Delaware
corporation ("ProNet"), to be held on                  , 1997, at           ,
local time, at                     , Dallas, Texas. All holders of common stock,
par value $.01 per share, of ProNet ("ProNet Common Stock") as of
               , 1997, are entitled to notice of and to vote at the Meeting.
 
     At the Meeting you will be asked to consider and vote on the approval and
adoption of that certain Agreement and Plan of Merger (the "Merger Agreement")
dated August 8, 1997, pursuant to which ProNet will be merged with and into
Metrocall, Inc., a Delaware corporation ("Metrocall") (the "Merger"). Under the
terms of the Merger Agreement, holders of ProNet Common Stock each will receive
shares of Metrocall common stock, par value $.01 per share ("Metrocall Common
Stock"), in exchange for the shares of ProNet Common Stock they hold as of the
effective time of the Merger. Pursuant to the terms of the Merger Agreement,
each share of ProNet Common Stock shall be converted into the right to receive
0.90 of a share of Metrocall Common Stock, subject to adjustment in certain
circumstances. Details of the proposal are set forth in the accompanying Proxy
Statement/Prospectus, which you should read carefully.
 
     After careful consideration, the Board of Directors of ProNet has approved
the Merger Agreement and the Merger and recommends that all stockholders vote in
favor of the adoption and approval of the Merger Agreement.
 
     All stockholders are invited to attend the Meeting in person. The
affirmative vote of a majority of the shares of ProNet Common Stock present, in
person or by proxy, at the Meeting will be necessary for the adoption and
approval of the Merger Agreement.
 
     IN ORDER THAT YOUR SHARES MAY BE REPRESENTED AT THE MEETING, YOU ARE URGED
TO READ THE PROXY STATEMENT/PROSPECTUS AND PROMPTLY COMPLETE, SIGN, DATE AND
RETURN THE ACCOMPANYING PROXY IN THE ENCLOSED ENVELOPE, WHETHER OR NOT YOU PLAN
TO ATTEND THE MEETING. If you attend the Meeting in person you may, if you wish,
vote personally on all matters brought before the Meeting even if you have
previously returned your Proxy.
                                        Sincerely,
 
                                        Jackie R. Kimzey
                                        Chairman of the Board and
                                        Chief Executive Officer
 
                             YOUR VOTE IS IMPORTANT
                 PLEASE READ, SIGN, DATE AND RETURN YOUR PROXY
<PAGE>   4
 
                               [METROCALL LOGO]
 
                                METROCALL, INC.
                             6677 RICHMOND HIGHWAY
                              ALEXANDRIA, VA 22306
                            ------------------------
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                        TO BE HELD ON DECEMBER 17, 1997
                            ------------------------
 
TO THE STOCKHOLDERS OF METROCALL, INC.:
 
     A Special Meeting of the stockholders of Metrocall, Inc. ("Metrocall") will
be held at the Ritz-Carlton, Pentagon City, located at 1250 South Hayes Street,
Arlington, Virginia, on December 17, 1997 at 9:00 a.m. local time to consider
and act upon the following proposals:
 
          1. To approve and adopt an Agreement and Plan of Merger dated as of
     August 8, 1997 (the "Merger Agreement"), a copy of which is included as
     Exhibit A to the Joint Proxy Statement/Prospectus accompanying this Notice,
     pursuant to which (a) ProNet Inc., a Delaware corporation ("ProNet"), will
     be merged with and into Metrocall, and (b) each share of ProNet common
     stock, par value $.01 per share ("ProNet Common Stock"), outstanding
     immediately prior to the effective time of the Merger will be converted
     into the right to receive (i) 0.90 of a newly issued share of Metrocall
     common stock, par value $.01 per share ("Metrocall Common Stock"), subject
     to adjustment in certain circumstances, plus (ii) cash in respect of
     fractional shares of Metrocall Common Stock, if any. The Merger must be
     approved and adopted by the holders of a majority of the issued and
     outstanding shares of Metrocall Common Stock.
 
          2. To approve and adopt an amendment (the "Charter Amendment") to the
     Amended and Restated Certificate of Incorporation of Metrocall to increase
     the authorized Metrocall Common Stock by 20,000,000 shares, from 60,000,000
     shares to 80,000,000 shares. The Charter Amendment must be approved by the
     holders of a majority of the issued and outstanding shares of Metrocall
     Common Stock.
 
          3. To approve and adopt an amendment (the "Option Plan Amendment") to
     Metrocall's 1996 Stock Option Plan to increase the number of shares of
     Metrocall Common Stock that may be issued thereunder by 2,000,000 shares to
     4,000,000 shares.
 
          4. To approve and adopt an amendment (the "ESPP Amendment") to
     Metrocall's Employee Stock Purchase Plan to increase the number of shares
     of Metrocall Common Stock that may be issued thereunder by 700,000 shares
     to 1,000,000 shares.
 
     Pursuant to Metrocall's Bylaws, the Board of Directors has fixed the close
of business on October 20, 1997 as the record date for the Special Meeting. Only
holders of Metrocall Common Stock of record at the close of business on that
date will be entitled to notice of and to vote at the Special Meeting or any
adjournments or postponements thereof.
                                       By Order of the Board of Directors
 
                                       Shirley B. White
                                       Assistant Secretary
Alexandria, Virginia
November   , 1997
 
IT IS IMPORTANT THAT PROXIES BE RETURNED PROMPTLY. THEREFORE, WHETHER OR NOT YOU
PLAN TO ATTEND THE ANNUAL MEETING, PLEASE COMPLETE, DATE, SIGN AND RETURN THE
ENCLOSED PROXY IN THE ENCLOSED POSTAGE PAID ENVELOPE. YOU MAY, IF YOU WISH,
REVOKE YOUR PROXY AT ANY TIME PRIOR TO THE TIME IT IS VOTED.
<PAGE>   5
 
                NOTICE OF PRONET SPECIAL MEETING OF STOCKHOLDERS
                            TO BE HELD        , 1997
                            ------------------------
 
TO THE STOCKHOLDERS OF PRONET INC.:
 
     NOTICE IS HEREBY GIVEN that a Special Meeting of Stockholders of ProNet
Inc., a Delaware corporation ("ProNet"), will be held on      , 1997 at      ,
local time, at      (the "ProNet Meeting") for the following purpose:
 
     To consider and vote upon a proposal to approve the Agreement and Plan of
     Merger (the "Merger Agreement"), dated as of August 8, 1997, between ProNet
     and Metrocall, Inc., a Delaware corporation ("Metrocall"), providing for
     the merger (the "Merger") of ProNet with and into Metrocall, with Metrocall
     being the surviving entity and pursuant to which each outstanding share of
     common stock, par value $.01 per share, of ProNet ("ProNet Common Stock")
     will be converted into the right to receive 0.90 of a share of Metrocall's
     common stock, par value $.01 per share, ("Metrocall Common Stock"), subject
     to adjustment in certain circumstances, plus cash in respect of fractional
     shares of Metrocall Common Stock, if any. A copy of the Merger Agreement is
     attached as Exhibit A to the accompanying Joint Proxy Statement/Prospectus.
 
     Only holders of record of ProNet Common Stock at the close of business on
     , 1997 are entitled to notice of and to vote at the ProNet Meeting and any
adjournments or postponements thereof. The list of ProNet stockholders entitled
to vote at the ProNet Meeting will be available for examination for ten days
prior to the ProNet Meeting at the offices of ProNet, 6340 LBJ Freeway, Dallas,
Texas 75240.
 
     All stockholders are cordially invited to attend the ProNet Meeting. To
ensure your representation at the ProNet Meeting, however, you are urged to
mark, sign and return the enclosed proxy card in the accompanying envelope,
whether or not you expect to attend the ProNet Meeting. No postage is required
if mailed in the United States. Any ProNet stockholder attending the ProNet
Meeting may vote in person even if that stockholder has returned a proxy card.
 
                                          By order of the Board of Directors
 
                                          Mark A. Solls
                                          Secretary
 
       , 1997
 
TO VOTE YOUR SHARES, PLEASE SIGN, DATE AND COMPLETE THE ENCLOSED PROXY CARD AND
MAIL IT PROMPTLY IN THE ENCLOSED RETURN ENVELOPE.
 
              PLEASE DO NOT SEND STOCK CERTIFICATES AT THIS TIME.
<PAGE>   6
 
                                METROCALL, INC.
                     PROXY STATEMENT FOR SPECIAL MEETING OF
                   STOCKHOLDERS TO BE HELD DECEMBER 17, 1997
         AND PROSPECTUS REGARDING THE ISSUANCE OF 12,306,388 SHARES OF
                             METROCALL COMMON STOCK
                            ------------------------
 
                                  PRONET INC.
 
                     PROXY STATEMENT FOR SPECIAL MEETING OF
                STOCKHOLDERS TO BE HELD                  , 1997
                            ------------------------
 
     This Joint Proxy Statement/Prospectus is being furnished to the
stockholders of Metrocall, Inc., a Delaware corporation ("Metrocall"), and to
the stockholders of ProNet Inc., a Delaware corporation ("ProNet"), and relates
to the Special Meeting of Stockholders of Metrocall (the "Metrocall Meeting") to
be held on December 17, 1997 and the Special Meeting of Stockholders of ProNet
(the "ProNet Meeting") to be held on                , 1997 (collectively, the
"Stockholders Meetings"). At the Stockholders Meetings, stockholders of
Metrocall and of ProNet, respectively, will be asked to consider and act upon
the Agreement and Plan of Merger dated as of August 8, 1997 between Metrocall
and ProNet (the "Merger Agreement"), a copy of which is attached hereto as
Exhibit A. In addition, stockholders of Metrocall will be asked to vote to
approve and adopt an amendment (the "Charter Amendment") to the Amended and
Restated Certificate of Incorporation of Metrocall increasing the number of
authorized shares of Metrocall common stock, par value $.01 per share
("Metrocall Common Stock") by 20,000,000 shares, from 60,000,000 shares to
80,000,000 shares, an amendment (the "Option Plan Amendment") to Metrocall's
1996 Stock Option Plan to increase the number of shares of Metrocall Common
Stock that may be issued thereunder by 2,000,000 shares and an amendment (the
"ESPP Amendment") to Metrocall's Employee Stock Purchase Plan to increase the
number of shares of Metrocall Common Stock that may be issued thereunder by
700,000 shares.
 
     Pursuant to the Merger Agreement, (i) ProNet will be merged with and into
Metrocall (the "Merger") and (ii) each share of ProNet common stock, par value
$.01 per share ("ProNet Common Stock"), outstanding immediately prior to the
effective time of the Merger (the "Effective Time"), will be converted into the
right to receive (A) that number of newly issued shares of Metrocall Common
Stock equal to the Conversion Ratio, plus (B) cash in respect of fractional
shares of Metrocall Common Stock, if any. The Conversion Ratio is 0.90 of a
share of Metrocall Common Stock for each share of ProNet Common Stock, subject
to adjustment if certain liabilities of ProNet exceed certain targets, if
annualized operating cash flow (earnings before interest, taxes, depreciation
and amortization) of ProNet is less or more than certain targets, and if
ProNet's new pager inventory falls below certain targets.
 
     Pursuant to an Option Agreement dated August 8, 1997, as amended (the
"Option Agreement"), ProNet has granted Metrocall the option to purchase up to
2,450,000 shares of ProNet Common Stock (representing approximately 19.4% of the
issued and outstanding ProNet Common Stock) at an exercise price of $5.40 per
share, subject to certain limitations. The option is exercisable in certain
circumstances involving ProNet's withdrawal of its recommendation of the Merger
or acceptance of an alternative acquisition offer. Pursuant to the terms of a
Stockholders Voting Agreement dated August 8, 1997 (the "Stockholders
Agreement"), certain stockholders of Metrocall have agreed to vote their shares
of Metrocall Common Stock (which constitute approximately 32% of the issued and
outstanding shares as of the record date for the Metrocall Meeting) in favor of
the Merger and the Charter Amendment.
 
     Holders of ProNet Common Stock and Metrocall Common Stock will not be
entitled to appraisal rights in connection with the Merger.
 
     The closing sale prices of Metrocall Common Stock and ProNet Common Stock
on September 19, 1997 were $6.94 and $5.94, respectively.
                            ------------------------
 
     THE BOARDS OF DIRECTORS OF METROCALL AND PRONET RECOMMEND THAT STOCKHOLDERS
OF THEIR RESPECTIVE COMPANIES VOTE FOR APPROVAL OF THE MERGER AGREEMENT. THE
BOARD OF DIRECTORS OF METROCALL ALSO RECOMMENDS THAT STOCKHOLDERS OF METROCALL
VOTE FOR APPROVAL OF THE CHARTER AMENDMENT, THE OPTION PLAN AMENDMENT AND THE
ESPP AMENDMENT.
                            ------------------------
 
 THE SECURITIES TO BE ISSUED PURSUANT TO THIS JOINT PROXY STATEMENT/PROSPECTUS
HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND EXCHANGE COMMISSION
(THE "COMMISSION") OR ANY STATE SECURITIES COMMISSION NOR HAS THE COMMISSION OR
  ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
   JOINT PROXY STATEMENT/PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
                            ------------------------
 
     SEE "RISK FACTORS," BEGINNING ON PAGE 14, FOR INFORMATION THAT SHOULD BE
CONSIDERED REGARDING THE SECURITIES OFFERED HEREBY.
                            ------------------------
 
     This Joint Proxy Statement/Prospectus and the accompanying forms of proxy
are first being mailed to the stockholders of Metrocall and ProNet on or about
November   , 1997.
 
    The date of this Joint Proxy Statement/Prospectus is November   , 1997.
<PAGE>   7
 
                             AVAILABLE INFORMATION
 
     ProNet and Metrocall are subject to the informational reporting
requirements of the Securities Exchange Act of 1934, as amended (the "Exchange
Act"), and, in accordance therewith, file reports, proxy statements and other
information with the Securities and Exchange Commission (the "Commission"). All
such reports, proxy statements and other information filed with the Commission
are available for inspection and copying at the public reference facilities
maintained by the Commission at Room 1024, Judiciary Plaza, 450 Fifth Street,
N.W., Washington, D.C. 20549, and at the Commission's Regional Offices located
at Citicorp Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661
and at Seven World Trade Center, 13th Floor, New York, New York 10048. Such
reports, proxy statements and other information filed with the Commission are
also available at the Commission's site on the World Wide Web located at
http://www.sec.gov. Copies of such documents may also be obtained from the
Public Reference Section of the Commission at Judiciary Plaza, 450 Fifth Street,
N.W., Washington, D.C. 20549, at prescribed rates. In addition, such materials
and other information concerning Metrocall and ProNet can be inspected at the
National Association of Securities Dealers, Inc., 1801 K Street, N.W.,
Washington, D.C. 20006.
 
     Metrocall has filed with the Commission, under the Securities Act of 1933,
as amended (the "Securities Act"), a Registration Statement on Form S-4
(together with all amendments, schedules and exhibits thereto, the "Registration
Statement") with respect to the securities offered hereby. This Joint Proxy
Statement/ Prospectus also constitutes the Prospectus of Metrocall filed as part
of the Registration Statement and does not contain all the information set forth
in the Registration Statement, certain parts of which are omitted in accordance
with the rules and regulations of the Commission. The Registration Statement,
including any amendments, schedules and exhibits thereto, is available for
inspection and copying as set forth above. Statements contained in this Joint
Proxy Statement/Prospectus as to the contents of any contract or other document
are not necessarily complete, and in each instance reference is made to the copy
of such contract or other document filed as an exhibit to the Registration
Statement, each such statement being qualified in all respects by such
reference. After the Merger, registration of the ProNet Common Stock under the
Exchange Act will be terminated.
 
     All information contained in this Joint Proxy Statement/Prospectus with
respect to Metrocall has been furnished by Metrocall and all information herein
with respect to ProNet has been furnished by ProNet. Each of Metrocall and
ProNet has represented and warranted to the other party in the Merger Agreement
that none of such information contains or will contain any untrue statement of a
material fact or omits or will omit to state any material fact necessary, in
light of the circumstances in which it was made, in order to make such
information not misleading.
                            ------------------------
 
     NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY
REPRESENTATION NOT CONTAINED IN THIS JOINT PROXY STATEMENT/PROSPECTUS IN
CONNECTION WITH THE SOLICITATION OF PROXIES OR THE OFFERING OF SECURITIES MADE
HEREBY, AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATION SHOULD NOT BE
RELIED UPON AS HAVING BEEN AUTHORIZED BY PRONET OR METROCALL. THIS JOINT PROXY
STATEMENT/PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL, OR THE SOLICITATION
OF AN OFFER TO PURCHASE, ANY METROCALL COMMON STOCK OR THE SOLICITATION OF A
PROXY, IN ANY JURISDICTION IN WHICH, OR TO OR FROM ANY PERSON TO OR FROM WHOM,
IT IS UNLAWFUL TO MAKE SUCH AN OFFER OR SOLICITATION. NEITHER THE DELIVERY OF
THIS JOINT PROXY STATEMENT/PROSPECTUS NOR ANY DISTRIBUTION OF METROCALL COMMON
STOCK HEREUNDER SHALL UNDER ANY CIRCUMSTANCES BE DEEMED TO IMPLY THAT THERE HAS
BEEN NO CHANGE IN THE AFFAIRS OF METROCALL OR PRONET OR IN THE INFORMATION SET
FORTH OR INCORPORATED BY REFERENCE HEREIN SUBSEQUENT TO THE DATE HEREOF.
                            ------------------------
 
                                        i
<PAGE>   8
 
               INCORPORATION OF CERTAIN INFORMATION BY REFERENCE
 
     The following documents filed with the Commission by Metrocall (File No.
0-21924) pursuant to the Exchange Act are incorporated by reference in this
Joint Proxy Statement/Prospectus:
 
          1. Metrocall's Annual Report on Form 10-K for the year ended December
     31, 1996, as amended, filed with the Commission on May 8, 1997;
 
          2. Metrocall's Quarterly Report on Form 10-Q for the quarter ended
     March 31, 1997, filed with the Commission on May 15, 1997;
 
          3. Metrocall's Quarterly Report on Form 10-Q for the quarter ended
     June 30, 1997, as amended, filed with the Commission on August 22, 1997;
 
          4. Metrocall's Current Reports on Form 8-K, as amended, filed with the
     Commission on October 1, 1996, January 27, 1997, July 16, 1997, August 12,
     1997, and September 8, 1997 respectively; and
 
          5. Metrocall's Proxy Statement for the Annual Meeting of Stockholders
     held on May 7, 1997, filed with the Commission on April 18, 1997.
 
     The following documents filed with the Commission by ProNet (File No.
0-16029) pursuant to the Exchange Act are incorporated by reference in this
Joint Proxy Statement/Prospectus:
 
          1. ProNet's Annual Report on Form 10-K for the year ended December 31,
     1996, filed with the Commission on March 28, 1997, as amended by amendment
     filed with the Commission on May 1, 1997;
 
          2. ProNet's Quarterly Report on Form 10-Q for the quarter ended March
     31, 1997, filed with the Commission on May 15, 1997;
 
          3. ProNet's Quarterly Report on Form 10-Q for the quarter ended June
     30, 1997, filed with the Commission on August 12, 1997; and
 
          4. ProNet's Current Report on Form 8-K, filed with the Commission on
     July 2, 1997.
 
     All documents and reports subsequently filed by Metrocall or ProNet
pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date
of this Joint Proxy Statement/Prospectus and prior to the later to occur of the
Metrocall Meeting and the ProNet Meeting shall be deemed to be incorporated by
reference in this Joint Proxy Statement/Prospectus and to be a part hereof from
the date of filing of such documents or reports. Any statement contained in a
document incorporated or deemed to be incorporated by reference herein shall be
deemed to be modified or superseded for purposes of this Joint Proxy
Statement/Prospectus to the extent that a statement contained herein or in any
other subsequently filed document that also is or is deemed incorporated by
reference herein modifies or supersedes such statement. Any such statement so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of this Joint Proxy Statement/Prospectus.
 
     THIS JOINT PROXY STATEMENT/PROSPECTUS INCORPORATES DOCUMENTS BY REFERENCE
THAT ARE NOT PRESENTED HEREIN OR DELIVERED HEREWITH. METROCALL AND PRONET HEREBY
UNDERTAKE TO PROVIDE WITHOUT CHARGE TO EACH PERSON, INCLUDING ANY BENEFICIAL
OWNER, TO WHOM A COPY OF THIS JOINT PROXY STATEMENT/PROSPECTUS HAS BEEN
DELIVERED, ON WRITTEN OR ORAL REQUEST OF ANY SUCH PERSON, A COPY OF ANY AND ALL
OF THE DOCUMENTS REFERRED TO ABOVE THAT HAVE BEEN OR MAY BE INCORPORATED INTO
THIS JOINT PROXY STATEMENT/PROSPECTUS BY REFERENCE, OTHER THAN EXHIBITS TO SUCH
DOCUMENTS (UNLESS SUCH EXHIBITS ARE SPECIFICALLY INCORPORATED BY REFERENCE INTO
SUCH DOCUMENTS). DOCUMENTS RELATING TO METROCALL ARE AVAILABLE ON WRITTEN OR
ORAL REQUEST DIRECTED TO METROCALL, INC., 6677 RICHMOND HIGHWAY, ALEXANDRIA,
VIRGINIA 22306, ATTENTION: SHIRLEY B. WHITE, ASSISTANT SECRETARY (TELEPHONE
NUMBER: (703) 660-6677). DOCUMENTS RELATING TO PRONET ARE AVAILABLE ON WRITTEN
OR ORAL REQUEST DIRECTED TO PRONET INC., 6340 LBJ FREEWAY, DALLAS, TEXAS 75240,
ATTENTION: MARK A. SOLLS, SECRETARY (TELEPHONE NUMBER: (972) 687-2000). IN ORDER
TO ENSURE TIMELY DELIVERY OF THE DOCUMENTS, ANY REQUEST SHOULD BE RECEIVED BY
NOVEMBER 30, 1997.
 
                                       ii
<PAGE>   9
 
                               TABLE OF CONTENTS
 
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SUMMARY............................................................................       1
  The Companies....................................................................       1
  The Stockholders' Meetings.......................................................       2
  The Merger.......................................................................       3
  Regulatory Approvals.............................................................       7
  Market Prices and Dividends......................................................       8
  Summary Historical Consolidated Financial Data...................................       9
  Other Proposals to be Presented at the Metrocall Meeting.........................      13
RISK FACTORS.......................................................................      14
THE MEETINGS.......................................................................      20
  Date, Time and Place of Meetings.................................................      20
  Purpose of the Meetings..........................................................      20
  Record Date and Outstanding Shares...............................................      20
  Voting and Revocation of Proxies.................................................      21
  Vote Required for Approval.......................................................      21
  Solicitation of Proxies..........................................................      22
  Other Matters....................................................................      22
  Appraisal Rights.................................................................      22
THE MERGER AND RELATED TRANSACTIONS................................................      22
  General Description of the Merger................................................      22
  Background of the Merger.........................................................      23
  Recommendation of the Board of Directors of Metrocall............................      25
  Metrocall's Reasons for the Merger...............................................      25
  Opinion of Financial Advisor to Metrocall........................................      26
  Recommendation of the Board of Directors of ProNet...............................      30
  ProNet's Reasons for the Merger..................................................      30
  Opinion of Financial Advisor to ProNet...........................................      31
  Interests of Certain Persons in the Merger.......................................      34
  Option Agreement.................................................................      36
  Stockholders Voting Agreement....................................................      37
  Certain Federal Income Tax Consequences..........................................      38
  Accounting Treatment.............................................................      39
  Government and Regulatory Approvals..............................................      39
  Restrictions on Resales by Affiliates............................................      40
THE MERGER AGREEMENT AND TERMS OF THE MERGER.......................................      41
  Effective Time of the Merger.....................................................      41
  Manner and Basis of Converting Shares............................................      41
  Number of Shares to be Issued; Conversion Ratio Adjustments......................      41
  Treatment of Stock Options.......................................................      42
  Indemnification..................................................................      43
  Representations and Warranties...................................................      43
  Conduct of Business Pending the Merger...........................................      43
  Response to Other Offers.........................................................      45
  Conditions to the Merger.........................................................      46
  Termination......................................................................      47
  Termination Fees.................................................................      48
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  Amendment........................................................................      48
DESCRIPTION OF METROCALL CAPITAL STOCK.............................................      49
  Common Stock.....................................................................      49
  Series A Preferred Stock.........................................................      51
  Series B Preferred Stock.........................................................      52
  Warrants.........................................................................      53
  Indexed Variable Common Rights...................................................      53
COMPARATIVE RIGHTS OF METROCALL STOCKHOLDERS AND PRONET STOCKHOLDERS...............      53
MANAGEMENT OF THE SURVIVING CORPORATION............................................      62
PRO FORMA CONDENSED COMBINED FINANCIAL DATA........................................      65
RECENT DEVELOPMENTS REGARDING METROCALL............................................      71
RECENT DEVELOPMENTS REGARDING PRONET...............................................      72
AMENDMENT OF METROCALL CHARTER TO INCREASE THE NUMBER OF AUTHORIZED METROCALL
  SHARES...........................................................................      73
AMENDMENT TO INCREASE THE NUMBER OF SHARES THAT MAY BE ISSUED UNDER METROCALL'S
  1996 STOCK OPTION PLAN...........................................................      74
AMENDMENT TO INCREASE THE NUMBER OF SHARES THAT MAY BE ISSUED UNDER METROCALL'S
  EMPLOYEE STOCK PURCHASE PLAN.....................................................      78
OTHER MATTERS......................................................................      80
LEGAL MATTERS......................................................................      80
Exhibit A -- Agreement and Plan of Merger dated as of August 8, 1997 between
             Metrocall, Inc. and ProNet Inc.
Exhibit B -- Opinion of Morgan Stanley & Co. Incorporated dated August 8, 1997.
Exhibit C -- Opinion of Salomon Brothers Inc dated August 5, 1997.
Exhibit D -- Amendment to the Amended and Restated Certificate of Incorporation of
             Metrocall.
Exhibit E -- Amendment to the Metrocall 1996 Stock Option Plan.
Exhibit F -- Amendment to the Metrocall Employee Stock Purchase Plan.
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                                    SUMMARY
 
     The following is a summary of certain information contained elsewhere in
this Joint Proxy Statement/Prospectus and/or in the Exhibits attached hereto,
and in the documents incorporated herein by reference. Certain capitalized terms
used and not defined in this summary are defined elsewhere in this Joint Proxy
Statement/Prospectus. This summary is not intended to be complete and is
qualified in its entirety by reference to the more detailed information and
financial statements contained elsewhere in this Joint Proxy
Statement/Prospectus and the Exhibits attached hereto or incorporated herein by
reference. STOCKHOLDERS OF METROCALL AND PRONET ARE URGED TO REVIEW CAREFULLY
THE ENTIRE JOINT PROXY STATEMENT/PROSPECTUS, INCLUDING THE EXHIBITS ATTACHED
HERETO AND THE DOCUMENTS INCORPORATED HEREIN BY REFERENCE, BEFORE VOTING ON THE
MATTERS DISCUSSED HEREIN.
 
                                 THE COMPANIES
 
METROCALL
 
     Metrocall had 2,332,006 pagers in service at June 30, 1997, and is the
fifth largest paging company in the United States, providing local, regional and
nationwide paging and other wireless messaging services. Metrocall currently
operates regional and nationwide paging networks throughout the United States
and has historically concentrated its selling efforts in five operating regions:
(i) the Northeast (Massachusetts through Delaware); (ii) the Mid-Atlantic
(Maryland and the Washington, D.C. metropolitan area); (iii) the Southeast
(including Virginia, the Carolinas, Georgia, Florida, Alabama, Louisiana,
Mississippi and Tennessee); (iv) the Southwest (primarily Texas); and (v) the
West (California, Nevada and Arizona). Through the Metrocall Nationwide Wireless
Network, Metrocall provides paging services in all 50 states and approximately
1,000 U.S. cities which include the top 100 Standard Metropolitan Statistical
Areas.
 
     On July 1, 1997, Metrocall acquired substantially all the assets of Page
America Group, Inc. and its subsidiaries ("Page America"), which added
approximately 200,000 subscribers. On a combined basis, Metrocall services a
total subscriber base consisting of more than 2.5 million units in service. On
August 8, 1997, Metrocall entered into the Merger Agreement with ProNet. Under
that agreement, ProNet will, subject to satisfaction of the terms and conditions
of that agreement, merge into Metrocall (the "Merger"). The Surviving
Corporation is expected to be the second largest paging company in the United
States with over 4 million subscribers on a pro forma basis.
 
     Metrocall was organized as a Delaware corporation in October 1982.
Metrocall Common Stock is traded on the Nasdaq Stock Market (the "NSM") under
the symbol "MCLL." Metrocall's principal executive offices are located at 6677
Richmond Highway, Alexandria, Virginia 22306 and its telephone number is (703)
660-6677. Unless the context otherwise requires, all references to Metrocall
shall mean Metrocall prior to consummation of the Merger.
 
PRONET
 
     ProNet is one of the largest providers of wireless messaging services in
the United States. Since 1994, ProNet has migrated its business focus from
servicing primarily the healthcare industry to broader commercial and retail
markets. Since March 1, 1994, ProNet has completed 22 acquisitions and increased
its subscriber base from 132,284 pagers in service to 1,385,354 pagers in
service at June 30, 1997.
 
     ProNet has focused its business development around five geographic regions
serviced by communication "SuperCenters" which are located in Charlotte,
Chicago, Houston, New York and Stockton, California. This geographically
concentrated operating strategy has allowed ProNet to develop regional critical
mass and selectively access markets which feature the size, growth rates,
demographic groups, type of businesses and competitive dynamics that indicate
significant potential demand for ProNet's current and future products and
services. In addition, by developing a heavy concentration of subscribers in
each geographic region, ProNet has maintained one of the lowest cost operating
structures in the paging industry.
 
                                        1
<PAGE>   13
 
     ProNet was incorporated under Delaware law in 1982. ProNet Common Stock is
traded on the NSM under the symbol "PNET." ProNet's principal executive office
is located at 6340 LBJ Freeway, Dallas, Texas 75240 and its telephone number is
(972) 687-2000.
 
SURVIVING CORPORATION
 
     Unless otherwise stated, all references to the "Surviving Corporation"
shall mean Metrocall after consummation of the Merger.
 
                           THE STOCKHOLDERS' MEETINGS
 
METROCALL
 
     The Metrocall Meeting will be held on December 17, 1997 at 9:00 a.m. local
time at the Ritz-Carlton, Pentagon City located at 1250 South Hayes Street,
Arlington, Virginia. Only holders of record of shares of Metrocall Common Stock
at the close of business on October 20, 1997 (the "Metrocall Record Date") are
entitled to notice of and to vote at the Metrocall Meeting.
 
     At the Metrocall Meeting, stockholders will be asked to consider and vote
upon (i) a proposal to approve and adopt the Merger Agreement, which provides
for the merger of ProNet with and into Metrocall, (ii) the Charter Amendment,
which provides for the increase in the number of authorized shares of Metrocall
Common Stock by 20,000,000 shares, from 60,000,000 shares to 80,000,000 shares,
(iii) the Option Plan Amendment, which provides for the increase in the number
of shares of Metrocall Common Stock that may be issued under Metrocall's 1996
Stock Option Plan by 2,000,000 shares, and (iv) the ESPP Amendment, which
provides for the increase in the number of shares of Metrocall Common Stock that
may be issued under the Employee Stock Purchase Plan by 700,000 shares.
 
     Each of the Merger Agreement and the Charter Amendment will be approved and
adopted if a majority of outstanding shares of Metrocall Common Stock entitled
to vote thereon vote in favor of the Merger Agreement and the Charter Amendment,
respectively. The Option Plan Amendment and the ESPP Amendment will be approved
if the votes cast in favor of the Option Plan Amendment and the ESPP Amendment,
respectively, exceed the votes opposing such actions. Abstentions and broker
non-votes will be treated as shares that are present and entitled to vote for
purposes of determining the presence of a quorum. Abstentions will be treated as
votes cast against the Merger Agreement and the Charter Amendment, but will not
be counted for purposes of the Option Plan Amendment or the ESPP Amendment.
Broker non-votes will be equivalent to votes cast against the Merger Agreement
and the Charter Amendment, but will not be counted for purposes of the Option
Plan Amendment or the ESPP Amendment. On the Metrocall Record Date, there were
approximately [29,198,600] shares of Metrocall Common Stock outstanding and
entitled to vote, each of which will be entitled to one vote on each matter to
be acted upon or which may properly come before the Metrocall Meeting. Of such
shares, 9,405,969 shares (approximately 32% of the shares entitled to vote at
the Metrocall Meeting) were held by persons who have agreed to vote in favor of
the Merger Agreement pursuant to the terms of a Stockholders Voting Agreement
dated August 8, 1997 (the "Stockholders Agreement"). See "THE MERGER AND RELATED
TRANSACTIONS -- Stockholders Voting Agreement."
 
PRONET
 
     The ProNet Meeting will be held on                     , 1997 at
          a.m., local time, at           . Only holders of record of shares of
ProNet Common Stock at the close of business on                     , 1997 (the
"ProNet Record Date") are entitled to notice of and to vote at the ProNet
Meeting.
 
     At the ProNet Meeting, stockholders will be asked to consider and vote upon
a proposal to approve the Merger Agreement, which provides for the merger of
ProNet with and into Metrocall. If the Merger Agreement is approved, subject to
certain adjustments, each outstanding share of ProNet Common Stock will be
converted into the right to receive 0.90 of a newly issued share of Metrocall
Common Stock. Fractional
 
                                        2
<PAGE>   14
 
shares of Metrocall Common Stock will not be issued in connection with the
Merger. A holder otherwise entitled to a fractional share will be paid cash in
lieu of such fractional share in an amount equal to the product of the closing
price of a share of Metrocall Common Stock on the trading day immediately prior
to the closing of the Merger multiplied by the fraction of a share to which such
holder would otherwise be entitled.
 
     The affirmative vote of a majority of the outstanding shares of ProNet
Common Stock is required to adopt the Merger Agreement. Each share of ProNet
Common Stock is entitled to one vote on each matter to be acted upon or which
may properly come before the ProNet Meeting. Abstentions and broker non-votes
will be treated as shares that are present and entitled to vote for purposes of
determining the presence of a quorum. Abstentions will be treated as votes cast
against the Merger Agreement. Broker non-votes will be equivalent to votes cast
against the Merger Agreement.
 
                                   THE MERGER
 
GENERAL
 
     Upon consummation of the Merger, ProNet will be merged with and into
Metrocall. Each share of ProNet Common Stock outstanding immediately prior to
consummation of the Merger will be converted, without any action on the part of
the holder thereof, into the right to receive that number of shares of Metrocall
Common Stock equal to the Conversion Ratio. The Conversion Ratio is 0.90 of a
share of Metrocall Common Stock for each share of ProNet Common Stock, subject
to adjustment if certain liabilities of ProNet exceed certain targets, if
annualized operating cash flow (earnings before interest, taxes, depreciation
and amortization) of ProNet is less or more than certain targets, and if new
pager inventory of ProNet falls below certain targets. Fractional shares of
Metrocall Common Stock will not be issued in connection with the Merger. A
holder otherwise entitled to a fractional share will be paid cash in lieu of
such fractional share in an amount equal to the product of the closing price of
a share of Metrocall Common Stock on the trading day immediately prior to the
closing of the Merger multiplied by the fraction of a share to which such holder
would otherwise be entitled.
 
     Based upon the capitalization of Metrocall and ProNet as of the ProNet
Record Date, the stockholders of ProNet immediately prior to consummation of the
Merger (other than Metrocall and its subsidiaries) are expected to receive
Metrocall Common Stock in the Merger representing approximately 30% of the
outstanding voting power of the Surviving Corporation following the Merger.
 
     The shares of Metrocall Common Stock held by existing Metrocall
stockholders prior to the Merger will remain unchanged by the Merger.
 
     At the Effective Time all shares of ProNet Common Stock will no longer be
outstanding and shall automatically be canceled and retired and shall cease to
exist, and each holder of a certificate representing any shares of ProNet Common
Stock will cease to have any rights with respect thereto, except the right to
receive the number of whole shares of Metrocall Common Stock to be issued in
exchange therefor upon the surrender of such certificate and cash in lieu of any
fraction of a share of Metrocall Common Stock otherwise issuable to such holder.
After the Effective Time, the exchange agent will deliver a letter of
transmittal and instructions to all holders of record of ProNet Common Stock for
use in exchanging their ProNet Common Stock certificates for Metrocall Common
Stock certificates.
 
HOLDERS OF PRONET COMMON STOCK SHOULD NOT SUBMIT THEIR STOCK CERTIFICATES FOR
EXCHANGE UNTIL THEY HAVE RECEIVED THE LETTER OF TRANSMITTAL AND INSTRUCTIONS
FROM THE EXCHANGE AGENT.
 
NUMBER OF SHARES TO BE ISSUED; CONVERSION RATIO ADJUSTMENTS
 
     The Conversion Ratio is 0.90 of a share of Metrocall Common Stock for each
share of ProNet Common Stock. Accordingly, subject to the adjustments described
below, Metrocall will issue 12,306,388 shares of Metrocall Common Stock as
consideration for an aggregate of 13,673,765 shares of ProNet Common Stock that
are presently issued and outstanding or which ProNet has agreed to issue. The
number of shares of
 
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<PAGE>   15
 
Metrocall Common Stock issuable in the Merger is subject to the following
adjustments. In the event of such adjustment, the Conversion Ratio would be
adjusted to equal the number of shares of Metrocall Common Stock to be issued
based on the adjustments, divided by 13,673,765.
 
     Liabilities Adjustment. If the sum of ProNet's aggregate indebtedness and
its working capital surplus or deficit at the end of the calendar month prior to
closing ("Measurement Date") exceeds a specified target, the number of shares of
Metrocall Common Stock to be issued in the Merger will be reduced by the excess,
divided by $4.875.
 
     Operating Cash Flow Adjustment. If ProNet's annualized operating cash flow
(earnings before interest, taxes, depreciation and amortization, as defined) is
greater than 110% or less than 90% of target cash flow as provided in Annex B to
the Merger Agreement, the number of shares of Metrocall Common Stock to be
issued in the Merger will be increased or decreased, whichever is applicable, by
a number equal to eight times the excess over 110% or shortfall below 90%,
divided by $4.875. Target cash flow for this purpose is defined to mean
annualized operating cash flow for the period beginning on July 1, 1997 and
ending on the Measurement Date.
 
     New Pager Inventory Adjustment. If ProNet's new pager inventory at the
Measurement Date is less than 50,000 units (45,000 of which must be Motorola
pagers), the number of shares of Metrocall Common Stock to be issued in the
Merger will be reduced by the number of new pagers in inventory below 50,000 (or
the number of Motorola pagers below 45,000, if that number is greater) times
$50.00, divided by $4.875.
 
     See "THE MERGER AGREEMENT AND TERMS OF MERGER -- Number of Shares to be
Issued, Conversion Ratio Adjustments."
 
RECOMMENDATIONS OF THE BOARDS OF DIRECTORS
 
     The Board of Directors of Metrocall unanimously has approved the Merger
Agreement and has determined that the Merger is fair to, and in the best
interests of, Metrocall and its stockholders. The Board of Directors of
Metrocall has unanimously recommended that the stockholders of Metrocall vote
FOR the approval and adoption of the Merger Agreement.
 
     The Board of Directors of ProNet unanimously has approved the Merger
Agreement and has determined that the Merger is fair to, and in the best
interests of, ProNet and its stockholders. The Board of Directors of ProNet has
unanimously recommended that the stockholders of ProNet vote FOR the approval of
the Merger Agreement.
 
REASONS FOR THE MERGER
 
     In reaching the determination that the Merger Agreement and the
transactions contemplated thereby are in the best interests of Metrocall and its
stockholders and ProNet and its stockholders, respectively, the Boards of
Directors of Metrocall and ProNet considered the factors set forth under "THE
MERGER AND RELATED TRANSACTIONS -- Metrocall's Reasons for the Merger" and
"-- ProNet's Reasons for the Merger."
 
RISKS ASSOCIATED WITH THE MERGER
 
     Stockholders of Metrocall and ProNet should consider certain risks in
connection with the Merger. The merger of ProNet with and into Metrocall is
subject to certain risks. For instance, Metrocall currently has a substantial
amount of indebtedness, has sustained net losses for the past three years and
has experienced fluctuation in the price of the shares of Metrocall Common
Stock. Metrocall and ProNet are subject to pending litigation. Certain members
of ProNet's Board of Directors and of its management have interests related to
the Merger other than as ProNet stockholders. The Merger will require the
integration of each company's operations, networks and administrative functions.
Once integrated, the Surviving Corporation will rely upon key personnel, will
confront competition and technological change and will be susceptible to changes
in the regulatory environment and to subscriber turnover. See "RISK FACTORS."
 
                                        4
<PAGE>   16
 
METROCALL'S FINANCIAL ADVISOR
 
     Metrocall retained the investment banking firm of Morgan Stanley & Co.
Incorporated ("Morgan Stanley") to render an opinion as to the fairness, from a
financial point of view, to Metrocall of the Conversion Ratio pursuant to the
Merger Agreement. Morgan Stanley has delivered to Metrocall's Board of Directors
a written opinion, dated August 8, 1997, to the effect that, as of such date and
based upon and subject to certain matters stated therein, taken together, the
Conversion Ratio pursuant to the Merger Agreement is fair from a financial point
of view to Metrocall. See "THE MERGER AND RELATED TRANSACTIONS -- Opinion of
Financial Advisor to Metrocall." A copy of Morgan Stanley's opinion is attached
hereto as Exhibit B.
 
PRONET'S FINANCIAL ADVISOR
 
     ProNet retained Salomon Brothers Inc ("Salomon Brothers") to render an
opinion as to the fairness, from a financial point of view, of the consideration
to be received by the holders of shares of ProNet Common Stock in the Merger.
Salomon Brothers has delivered to the ProNet Board of Directors a written
opinion dated August 5, 1997, to the effect that, as of such date and based upon
and subject to certain matters stated therein, the consideration to be received
by holders of shares of ProNet Common Stock pursuant to the Merger Agreement is
fair to such holders from a financial point of view. A copy of Salomon Brothers'
opinion is attached hereto as Exhibit C.
 
PROHIBITION ON CERTAIN ACTIVITIES
 
     The Merger Agreement generally provides that, prior to the Effective Time,
ProNet and Metrocall each will conduct its business in the ordinary course and
each will be subject to certain limitations, as discussed in this Joint Proxy
Statement/Prospectus in "THE MERGER AGREEMENT AND TERMS OF THE MERGER -- Conduct
of Business Pending the Merger." In particular, ProNet has agreed that it will
not solicit, encourage or participate in certain transactions except with
respect to an offer which meets certain conditions set forth in the Merger
Agreement. In addition, Metrocall is precluded from exercising control over
ProNet and its facilities prior to receipt of Federal Communications Commission
("FCC") approval.
 
CONDITIONS TO CONSUMMATION OF THE MERGER
 
     The respective obligations of each party to effect the Merger are subject
to satisfaction or waiver of certain conditions set forth in the Merger
Agreement including, among others, (i) approval by the stockholders of Metrocall
and ProNet, (ii) the absence of any legal bar to consummation of the Merger,
(iii) listing of the shares of Metrocall Common Stock issuable pursuant to the
Merger Agreement on the NSM, (iv) receipt of FCC and other governmental
approvals, (v) continued accuracy of the representations and warranties made by
each party in the Merger Agreement, and (vi) absence of any material adverse
change in the business, properties, assets, liabilities, financial condition,
cash flows, operations, licenses, franchises or results of operations of either
party since the date of the Merger Agreement, with certain permitted exceptions.
See "THE MERGER AGREEMENT AND TERMS OF THE MERGER -- Conditions to the Merger."
 
TERMINATION
 
     The Merger Agreement may be terminated prior to the Effective Time, whether
before or after stockholder approval, by the mutual written consent of Metrocall
and ProNet. The Merger Agreement may also be terminated prior to the Effective
Time, whether before or after stockholder approval, by either Metrocall or
ProNet upon the occurrence of certain events.
 
     If the Merger Agreement is terminated by ProNet or Metrocall as a result of
ProNet's Board of Directors acceptance of another proposal related to the
acquisition of ProNet (an "Acquisition Proposal") or withdrawal of its
recommendation of the Merger, or as a result of ProNet's stockholders failure to
approve the Merger, ProNet will immediately pay to Metrocall a termination fee
of $4 million. Metrocall will pay ProNet a termination fee of $4 million if
Metrocall's stockholders fail to approve the Merger or the Charter Amendment.
See "THE MERGER AGREEMENT AND TERMS OF THE MERGER -- Termination."
 
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<PAGE>   17
 
OPTION AGREEMENT
 
     Metrocall and ProNet entered into an Option Agreement dated as of August 8,
1997 (the "Option Agreement"), in which ProNet granted Metrocall an irrevocable
option to purchase up to 2,450,000 shares of ProNet Common Stock, subject to
certain adjustments, at a price of $5.40 per share (the "Option"). Metrocall may
exercise the Option upon the occurrence of any of the following "Trigger
Events": (i) ProNet's termination of the Merger Agreement because its Board of
Directors has accepted an Acquisition Proposal; (ii) Metrocall's termination of
the Merger Agreement because ProNet's Board of Directors has accepted an
Acquisition Proposal or has withdrawn its recommendation of the Merger; or (iii)
ProNet's acceptance of an Acquisition Proposal within six months after the
stockholders of ProNet disapprove the Merger Agreement. The Option will
terminate upon the earliest to occur of consummation of the Merger, termination
of the Merger Agreement for reasons other than a Trigger Event, or one year
after occurrence of a Trigger Event, subject to extension in certain
circumstances but no later than two years after a Trigger Event. See "THE MERGER
AND RELATED TRANSACTIONS -- Option Agreement."
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
     In considering the recommendations of ProNet's Board of Directors with
respect to the Merger, stockholders should be aware that certain members of the
Board of Directors and management of ProNet have certain interests in the Merger
that are in addition to the interests of stockholders of ProNet generally.
Certain of such persons have entered into non-competition and other agreements
that will become effective upon consummation of the Merger and/or may be
appointed to the Board of Directors of Metrocall following the Merger. See "THE
MERGER AND RELATED TRANSACTIONS -- Interests of Certain Persons in the Merger."
 
BOARD OF DIRECTORS OF THE SURVIVING CORPORATION
 
     After the Merger, the Board of Directors of the Surviving Corporation will
consist of 14 members, of whom 11 will be current Metrocall directors and three
will be ProNet directors. See "MANAGEMENT OF THE SURVIVING CORPORATION."
 
MANAGEMENT OF THE SURVIVING CORPORATION
 
     The executive officers of Metrocall will be the executive officers of the
Surviving Corporation. See "MANAGEMENT OF THE SURVIVING CORPORATION."
 
ACCOUNTING TREATMENT
 
     The Merger will be accounted for by Metrocall under the purchase method of
accounting in accordance with Accounting Principles Board Opinion No. 16,
"Business Combinations," as amended. Under this method of accounting, the
purchase price will be allocated to assets acquired and liabilities assumed
based on their estimated fair values at the Effective Time. Income of the
Surviving Corporation will not include income (or loss) of ProNet prior to the
Effective Time. See "THE MERGER AND RELATED TRANSACTIONS -- Accounting
Treatment."
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
     The obligations of Metrocall and ProNet to consummate the Merger are
conditioned on the receipt of opinions of their respective counsel, Wilmer,
Cutler & Pickering and Vinson & Elkins L.L.P., to the effect that the Merger
will be treated for Federal income tax purposes as a reorganization within the
meaning of Section 368(a) of the Internal Revenue Code of 1986, as amended (the
"Code"). If so treated, no gain or loss will be recognized by ProNet
stockholders upon the receipt of Metrocall Common Stock in exchange for ProNet
Common Stock, except with respect to cash received in lieu of a fractional
interest in Metrocall Common Stock. See "THE MERGER AND RELATED
TRANSACTIONS -- Certain Federal Income Tax Matters." ProNet stockholders are
urged to consult their own tax advisors.
 
                                        6
<PAGE>   18
 
APPRAISAL RIGHTS
     Holders of ProNet Common Stock and Metrocall Common Stock are not entitled
to appraisal rights in connection with the Merger. See "THE
MEETINGS -- Appraisal Rights."
FLUCTUATION IN MARKET PRICE
     The value realized by ProNet stockholders in the Merger and the value
assigned to intangible assets recorded in the purchase accounting for the
Surviving Corporation will depend upon the market price of the Metrocall Common
Stock, which is subject to fluctuation. The closing sale price of Metrocall
Common Stock at September 19, 1997 was $6.94. See "Market Prices and Dividends"
below. There can be no assurance that the recent market prices of Metrocall
Common Stock will be maintained until or after the consummation of the Merger.
COMPARISON OF STOCKHOLDERS' RIGHTS
     See "COMPARATIVE RIGHTS OF METROCALL STOCKHOLDERS AND PRONET STOCKHOLDERS"
for a summary of the material differences between the rights of holders of
Metrocall Common Stock and of ProNet Common Stock.
                              REGULATORY APPROVALS
     Under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (the "HSR
Act") and the rules promulgated thereunder by the Federal Trade Commission (the
"FTC"), the Merger may not be consummated unless certain information has been
furnished to the FTC and the Antitrust Division of the Department of Justice
(the "Antitrust Division") and certain waiting period requirements have been
satisfied. On September 9 , 1997 and September 8, 1997 (as supplemented on
September 9, 1997), respectively, ProNet and Metrocall each filed a Premerger
Notification and Report Form with the Antitrust Division and the FTC in
connection with the Merger. The waiting period will expire on October 9, 1997,
unless the parties receive a request for additional information.
     ProNet and the respective operating subsidiaries of ProNet and Metrocall
are licensed by the FCC to provide paging services in the respective geographic
areas in which they have operations. The Communications Act of 1934 (the
"Communications Act") requires prior FCC approval for the transfer of actual or
legal control of companies holding FCC authorizations. Metrocall has filed
applications seeking FCC approval to take control of ProNet and its operating
subsidiaries. There can be no assurance that the FCC will grant such approval or
that, if granted, such FCC approval will be on a timely basis or on terms and
conditions acceptable to Metrocall, or that any such approval will not be
subject to administrative or judicial review.
 
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<PAGE>   19
 
                          MARKET PRICES AND DIVIDENDS
 
     Metrocall Common Stock and ProNet Common Stock are traded on the NSM. The
following table sets forth, for the calendar periods indicated, the high and low
closing sales prices of Metrocall Common Stock and ProNet Common Stock on the
NSM.
 
<TABLE>
<CAPTION>
                                                           METROCALL                  PRONET
                                                         COMMON STOCK              COMMON STOCK
                                                         -------------      --------------------------
                          1995                           HIGH      LOW         HIGH            LOW
                                                         ----      ---        -----            ---
    <S>                                                  <C>       <C>      <C>             <C>
      First Quarter..................................    $18       $141/2   $19             $ 7/8   13
      Second Quarter.................................     18 3/8    17      221/8             3/4   17
      Third Quarter..................................     29        18      321/8             1/4   20
      Fourth Quarter.................................     28 1/4    191/2   303/16            3/4   23
    1996
      First Quarter..................................    $21 1/4   $161/2   $29             $ 7/8   20
      Second Quarter.................................     21 3/4    10      331/2             3/8   10
      Third Quarter..................................     11         61/4   123/4             1/16   6
      Fourth Quarter.................................      7 1/8     313/16  815/16           1/4    4
    1997
      First Quarter..................................    $ 7 1/2   $ 41/8   $61/4           $ 3/8    3
      Second Quarter.................................      5  5/8    3 3/4   41/2             1/2    2
      Third Quarter (through September 19, 1997).....      7 1/4     413/16  61/4             7/8    3
</TABLE>
 
     On August 8, 1997 the last full trading day for Metrocall Common Stock and
ProNet Common Stock prior to the public announcement of the execution of the
Merger Agreement, the reported closing sale prices of Metrocall Common Stock and
of ProNet Common Stock, as reported by the NSM, were $6 and $6 per share,
respectively. The closing sale prices of Metrocall Common Stock and of ProNet
Common Stock, as reported by the NSM, on September 19, 1997 were $6.94 and $5.94
per share, respectively. At the ProNet Record Date, there were approximately
       stockholders of record of ProNet Common Stock. At the Metrocall Record
Date, there were approximately        stockholders of record of Metrocall Common
Stock. Because the market price of Metrocall Common Stock is subject to
fluctuation, the market value of the shares of Metrocall Common Stock that
holders of ProNet Common Stock will receive in the Merger may increase or
decrease prior to the Merger. STOCKHOLDERS ARE URGED TO OBTAIN A CURRENT MARKET
QUOTATION FOR THE METROCALL COMMON STOCK AND THE PRONET COMMON STOCK.
 
     Neither Metrocall nor ProNet has paid any cash dividends on its common
stock (except for distributions by Metrocall prior to its initial public
offering), and the Board of Directors of each of Metrocall and ProNet currently
does not anticipate paying cash dividends in the foreseeable future on shares of
their respective common stock. Following the Merger, any future payment of
dividends will be at the discretion of the Surviving Corporation's Board of
Directors and will depend upon the financial condition and capital requirements
of the Surviving Corporation as well as other factors that the Surviving
Corporation's Board of Directors may deem relevant. In addition, certain
covenants in Metrocall's bank credit agreement, indentures, and Series A
Preferred Stock restrict in certain circumstances the payment of dividends by
Metrocall.
 
                                        8
<PAGE>   20
 
                                METROCALL, INC.
 
                 SUMMARY HISTORICAL CONSOLIDATED FINANCIAL DATA
            (IN THOUSANDS, EXCEPT UNIT, PER UNIT AND PER SHARE DATA)
<TABLE>
<CAPTION>
                                                                      YEAR ENDED DECEMBER 31,                        SIX MONTHS
                                                     ----------------------------------------------------------    ENDED JUNE 30,
                                                       1992        1993      1994(1)       1995       1996(1)           1997
                                                     --------    --------    --------    --------    ----------    --------------
<S>                                                  <C>         <C>         <C>         <C>         <C>           <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
Service, rent and maintenance revenues............   $ 30,996    $ 33,111    $ 49,716    $ 92,160    $  124,029      $  118,537
Product sales.....................................      4,196       4,549       8,139      18,699        25,928          18,513
                                                     --------    --------    --------    --------    ----------      ----------
        Total revenues............................     35,192      37,660      57,855     110,859       149,957         137,050
Net book value of products sold...................     (3,439)     (4,130)     (6,962)    (15,527)      (21,633)        (13,682)
                                                     --------    --------    --------    --------    ----------      ----------
                                                       31,753      33,530      50,893      95,332       128,324         123,368
Operating expenses:
Service, rent and maintenance.....................      8,342       9,559      14,014      27,258        38,347          35,440
Selling, general and administrative(2)............     12,341      17,879      20,727      42,353        57,226          54,749
Depreciation and amortization.....................      6,594       6,525      13,829      31,504        58,196          43,549
                                                     --------    --------    --------    --------    ----------      ----------
Income (loss) from operations.....................      4,476        (433)      2,323      (5,783)      (25,445)        (10,370)
Interest and other (expense) income(3)............      1,212          77         161         314          (607)             60
Interest expense..................................     (2,631)     (1,331)     (3,726)    (12,533)      (20,424)        (15,907)
                                                     --------    --------    --------    --------    ----------      ----------
Income (loss) before income tax benefit
  (provision) and extraordinary item..............      3,057      (1,687)     (1,242)    (18,002)      (46,476)        (26,217)
Income tax benefit (provision)....................        (69)        (59)        152         595         1,021           2,165
                                                     --------    --------    --------    --------    ----------      ----------
Income (loss) before extraordinary item...........      2,988      (1,746)     (1,090)    (17,407)      (45,455)        (24,052)
Extraordinary item(3).............................         --        (439)     (1,309)     (2,695)       (3,675)             --
                                                     --------    --------    --------    --------    ----------      ----------
  Net income (loss)...............................      2,988      (2,185)     (2,399)    (20,102)      (49,130)        (24,052)
Preferred dividends...............................         --          --          --          --          (780)         (3,169)
                                                     --------    --------    --------    --------    ----------      ----------
  Income (loss) attributable to common
    stockholders..................................   $  2,988    $ (2,185)   $ (2,399)   $(20,102)   $  (49,910)     $  (27,221)
                                                     ========    ========    ========    ========    ==========      ==========
Loss per share attributable to common
  stockholders:
  Loss per share before extraordinary item
    attributable to common stockholders...........                           $  (0.14)   $  (1.49)   $    (2.84)     $    (1.09)
  Extraordinary item, net of income tax benefit...                              (0.16)      (0.23)        (0.23)             --
                                                                             --------    --------    ----------      ----------
  Loss per share attributable to common
    stockholders..................................                           $  (0.30)   $  (1.72)   $    (3.07)     $    (1.09)
                                                                             ========    ========    ==========      ==========
OPERATING AND OTHER DATA:
Units in service (end of period)..................    201,397     247,716     755,546     944,013     2,142,351       2,332,006
EBITDA(4).........................................   $ 11,070    $ 10,923    $ 16,152    $ 27,771    $32,751....     $   33,179
EBITDA margin(5)..................................       34.9%       32.6%       31.7%       29.1%         25.5%           26.9%
Net cash provided by operating activities.........   $  8,858    $ 10,929    $ 11,796    $ 14,000    $   15,608      $   14,298
Net cash provided by (used in) investing
  activities......................................   $ 26,127    $(13,598)   $(19,227)   $(44,528)   $ (327,904)     $  (23,974)
Net cash (used in) provided by financing
  activities......................................   $(34,167)   $  1,983    $  9,190    $151,329    $  199,639      $   19,508
ARPU(6)...........................................   $  13.10    $  12.29    $  10.53    $   9.15    $     8.01      $     8.36
Average monthly operating expense per unit(7).....   $   8.74    $   8.39    $   7.36    $   6.71    $     6.28      $     6.50
Units in service per employee (end of period).....        730         716       1,007       1,047         1,086           1,132
Capital expenditures(8)...........................   $  3,918    $ 13,561    $ 19,091    $ 44,058    $   62,110      $   32,501
 
<CAPTION>
                                                                            DECEMBER 31,                              
                                                     ----------------------------------------------------------       JUNE 30,
                                                       1992        1993        1994        1995         1996            1997
                                                     --------    --------    --------    --------    ----------      ----------
<S>                                                  <C>         <C>         <C>         <C>         <C>           <C>
CONSOLIDATED BALANCE SHEET DATA:
Working capital (deficit).........................   $    531    $ (1,603)   $ (5,277)   $116,009    $   (7,267)     $    5,825
Cash and cash equivalents.........................      1,700       1,014       2,773     123,574        10,917          20,749
Total assets......................................     26,180      33,857     200,580     340,614       651,468         646,728
Total long-term debt..............................     31,143      12,102     104,846     154,055       327,792         349,253
Total stockholders' equity (deficit)..............    (11,374)     13,729      68,136     155,238       166,298         141,918
</TABLE>
 
- ---------------
(1) 1994 and 1996 include the results of operations of acquired companies from
    their respective acquisition dates (see Note 3 to consolidated financial
    statements as of and for the year ended December 31, 1996).
(2) Includes the impact of one-time, non-recurring charges for the forgiveness
    of certain stockholder notes receivable of approximately $4.8 million in
    1993, and for severance and other compensation costs incurred as part of a
    management reorganization charge of approximately $2.0 million in 1995.
(3) In 1993, 1994 and 1995 the Company refinanced balances outstanding under its
    then existing credit facilities. As a result of this refinancing the Company
    recorded extraordinary items of $439,000, $1.3 million and $2.7 million,
    respectively, representing charges to expense unamortized deferred financing
    costs and other costs, net of any income tax benefits, related to those
    credit facilities. In 1996, the Company recorded an extraordinary item for
    costs of approximately $3.7 million paid to purchase the A+ Network 11 7/8%
    senior subordinated notes outstanding. Additionally, the Company incurred
    breakage fees of approximately $1.7 million associated with the termination
    of two interest rate swap agreements in 1995. Costs associated with this
    termination have been included in interest and other (expense) income in the
    1995 statement of operations.
(4) EBITDA (earnings before interest, taxes, depreciation and amortization, and
    certain one-time charges), while not a measure under generally accepted
    accounting principles ("GAAP"), is a standard measure of financial
    performance in the paging industry; EBITDA should not be considered in
    isolation or as an alternative to net income (loss), income (loss) from
    operations, cash flows from operating activities, or any other measure of
    performance under GAAP. EBITDA is, however, an approximation of the primary
    financial measure by which the Company's covenants are calculated under the
    Indenture and its credit facility. See "Management's Discussion and Analysis
    of Financial Condition and Results of Operations -- Liquidity and Capital
    Resources" for discussion of significant capital requirements and
    commitments. EBITDA excludes non-recurring charges for the forgiveness of
    certain stockholder notes receivable of approximately $4.8 million in 1993,
    and approximately $2.0 million incurred as part of a management
    reorganization charge in 1995.
(5) EBITDA margin is calculated by dividing (a) EBITDA by (b) the sum of (total
    revenues less the net book value of products sold).
(6) ARPU (average monthly paging revenue per unit) is calculated by dividing (a)
    service, rent and maintenance revenues for the period by (b) the average
    number of units in service for the period. ARPU calculation excludes
    revenues derived from non-paging services such as telemessaging, long
    distance and cellular telephone.
(7) Average monthly operating expense per unit is calculated by dividing (a)
    total recurring operating expenses before depreciation and amortization for
    the period by (b) the average number of units in service for the period. For
    this calculation, operating expenses exclude non-recurring charges for the
    forgiveness of certain stockholder notes receivable of approximately $4.8
    million in 1993, and approximately $2.0 million incurred as a part of a
    management reorganization charge in 1995.
(8) Excludes acquisitions but includes leased pager costs.
 
                                        9
<PAGE>   21
 
                                  PRONET INC.
 
                 SUMMARY HISTORICAL CONSOLIDATED FINANCIAL DATA
            (IN THOUSANDS, EXCEPT UNIT, PER UNIT AND PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                                                                     SIX MONTHS
                                                                                                                   ENDED JUNE 30,
                                                            1992       1993       1994       1995        1996           1997
                                                          --------   --------   --------   --------   ----------   --------------
<S>                                                       <C>        <C>        <C>        <C>        <C>          <C>
CONSOLIDATED STATEMENT OF OPERATIONS DATA:
  Service, rent and maintenance revenues(1).............. $ 16,845   $ 19,234   $ 33,079   $ 56,108   $   87,239     $   48,562
  Product sales(2).......................................    1,855      2,040      6,639     10,036       15,817         10,430
                                                          --------   --------   --------   --------   ----------   --------------
    Total revenues.......................................   18,700     21,274     39,718     66,144      103,056         58,992
  Net book value of products sold........................   (1,072)      (956)    (6,644)    (9,421)     (13,244)        (7,183)
                                                          --------   --------   --------   --------   ----------   --------------
                                                            17,628     20,318     33,074     56,723       89,812         51,809
  Operating expenses:
  Service, rent and maintenance..........................    4,708      5,102      9,185     14,396       25,924         15,351
  Selling, general and administrative....................    6,996      7,828     12,126     23,935       39,090         21,571
  Depreciation and amortization..........................    4,077      4,656      8,574     18,662       40,624         33,117
  Nonrecurring charges...................................       --         --         --         --        8,809          6,550
                                                          --------   --------   --------   --------   ----------   --------------
  Income (loss) from operations..........................    1,847      2,732      3,189       (270)     (24,635)       (24,780)
  Interest and other income..............................      217         43        173      1,291          285            137
  Interest expense.......................................     (310)      (292)    (1,774)    (8,640)     (15,370)        (8,756)
                                                          --------   --------   --------   --------   ----------   --------------
  Income (loss) before income tax provision..............    1,754      2,483      1,588     (7,619)     (39,720)       (33,399)
  Income tax provision...................................       --       (909)      (895)       (78)        (323)          (167)
                                                          --------   --------   --------   --------   ----------   --------------
  Net income (loss)...................................... $  1,754   $  1,574   $    693   $ (7,697)  $  (40,043)    $  (33,566)
                                                          ========   ========   ========   ========    =========   ==============
OPERATING AND OTHER DATA:
  Units in service (end of period).......................  114,356    130,000    353,830    856,302    1,270,954      1,385,354
  EBITDA(3).............................................. $  5,911   $  7,388   $ 11,763   $ 18,392   $   24,798     $   14,887
  EBITDA margin(4).......................................       34%        36%        36%        32%          28%            29%
  Net cash provided by operating activities(5)........... $  6,720   $  7,144   $ 11,952   $ 12,470   $      160     $   13,502
  Net cash provided by (used in) investing activities....   (5,399)    (6,071)   (45,373)   (89,006)    (142,493)       (33,523)
  Net cash provided by (used in) financing activities....   (1,559)      (674)    33,557     86,024      134,465         21,552
  ARPU -- Paging(6)......................................    10.48      10.23       8.51       6.57         6.17           5.61
  ARPU -- Tracking(7)....................................    14.75      15.90      16.52      15.90        18.42          18.80
  Average monthly operating expense per unit(8)..........     7.80       7.91       5.08       4.78         4.68           4.45
  Units in service per employee (end of period)(9).......      880      1,000      1,325      1,619        1,648          1,708
  Capital expenditures(10)............................... $  2,315   $  2,565   $  2,811   $  9,773   $   14,534     $    3,562
 
CONSOLIDATED BALANCE SHEET DATA:
  Working capital (deficit).............................. $  1,130   $    812   $ (3,119)  $  3,242   $   (1,927)    $  (11,392)
  Cash and cash equivalents..............................      131        530        666     10,154        2,286          3,817
  Total assets...........................................   28,128     30,296     73,273    186,969      311,716        307,191
  Total long-term debt...................................    3,460      3,903      9,500     99,319      148,691        170,226
  Total stockholders' equity.............................   19,803     20,359     50,235     49,556      133,649        101,267
</TABLE>
 
- ---------------
 (1) Service, rent and maintenance revenues consist of fixed monthly, quarterly,
     annual and bi-annual service and leasing fees.
 (2) Product sales include pager and paging equipment sales and other security
     systems' income.
 (3) EBITDA is earnings before other income (expense), income taxes,
     depreciation and amortization and nonrecurring charges. Other income
     (expense) consists primarily of interest expense. EBITDA does not represent
     cash flows as defined by generally accepted accounting principles and does
     not necessarily indicate that cash flows are sufficient to fund all of
     ProNet's cash needs. EBITDA should not be considered in isolation or as a
     substitute for net income (loss), cash from operating activities or other
     measures of liquidity determined in accordance with generally accepted
     accounting principles. EBITDA excludes nonrecurring charges of
     approximately $8.8 million in 1996 and $6.6 million in 1997.
 (4) Calculated by dividing EBITDA by the remainder of total revenues less net
     book value of products sold for the period presented.
 (5) Cash flow from operating activities is derived from the statement of cash
     flows and differs from EBITDA (as defined above) primarily due to interest
     expense and changes in working capital.
 (6) ARPU -- Paging (average revenue per paging unit) is calculated by dividing
     paging systems average monthly service revenues for the last quarter of the
     period by the average number of pagers in service at the beginning of such
     quarter.
 (7) ARPU -- Tracking (average revenue per tracking unit) is calculated by
     dividing security systems' service revenues for the last month in the
     period by the number of tracking units in service at the beginning of such
     month.
 (8) Calculated by dividing the sum of the cost of pager lease and access fees
     and selling, general and administrative expenses for the last month in the
     period by the number of pagers in service at the beginning of such month.
 (9) Calculated by dividing pagers in service at the end of each period by the
     number of employees at the end of the period presented. This calculation
     excludes employees directly related to the security systems' business.
(10) Excludes acquisition and leased pager costs.
 
                                       10
<PAGE>   22
 
         SUMMARY UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL DATA
 
     The following summary unaudited pro forma condensed combined statements of
operations data of Metrocall for the year ended December 31, 1996 and for the
six months ended June 30, 1997 give effect to Metrocall's 1996 acquisitions
including Parkway Paging, Inc. ("Parkway"), O.R. Estman, Inc. and Dana Paging,
Inc. (collectively, "Satellite") and A+ Network, Inc. ("A+ Network") as if each
transaction had occurred on January 1, 1996. The unaudited pro forma condensed
combined statements of operations data for the year ended December 31, 1996 also
gives effect to the Page America Acquisition under the heading "Pro Forma
Metrocall and Page America" and to the Merger under the heading "Pro Forma
Metrocall, Page America and ProNet" as if those transactions had occurred on
January 1, 1996.
 
     This information should be read in conjunction with the unaudited Pro Forma
Condensed Combined Financial Data and the notes thereto included herein (see
"PRO FORMA CONDENSED COMBINED FINANCIAL DATA"), the financial statements of
Parkway, Satellite, A+ Network, Network Paging Corporation and Page America
incorporated by reference herein and Metrocall Consolidated Financial Statements
and the ProNet Consolidated Financial Statements included herewith. The
unaudited pro forma condensed combined financial data do not purport to
represent what the Surviving Corporation's results of operations or financial
position actually would have been had such transactions and events occurred on
the dates specified, or to project the Surviving Corporation's results of
operations or financial position for any future period or date. The pro forma
adjustments are based upon available information and certain adjustments that
management of Metrocall believes are reasonable. In the opinion of management of
Metrocall, all adjustments have been made that are necessary to present fairly
the unaudited pro forma condensed combined financial data.
 
                                       11
<PAGE>   23
 
                      FOR THE YEAR ENDED DECEMBER 31, 1996
         (IN THOUSANDS, EXCEPT FOR PER SHARE DATA AND UNITS IN SERVICE)
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                                              PRO FORMA       PRO FORMA
                                                                                              METROCALL       METROCALL,
                                                                              PRO FORMA          AND         PAGE AMERICA
                                                                             METROCALL(1)    PAGE AMERICA     AND PRONET
                                                                             ------------    ------------    ------------
<S>                                                                          <C>             <C>             <C>
CONDENSED COMBINED STATEMENTS OF OPERATIONS DATA:
  Total revenues..........................................................    $  247,886      $  269,870      $   372,926
  Operating expenses......................................................       264,120         288,383          405,752
  Loss from operations....................................................       (46,821)        (50,384)         (77,941)
  Interest and other income (expense), net................................       (30,573)        (33,561)         (48,646)
  Benefit (provision) for income taxes....................................         5,614           5,614           10,081
  Net loss................................................................       (71,780)        (78,331)        (116,506)
  Net loss per share......................................................    $    (2.87)     $    (2.70)     $     (2.82)
  Weighted average common shares outstanding..............................        24,978          28,975           41,281
 
OTHER DATA:
  Units in service (end of period)........................................     2,142,351       2,342,351        3,613,305
  EBITDA(2)...............................................................    $   53,879      $   59,003      $    83,801
</TABLE>
 
                     FOR THE SIX MONTHS ENDED JUNE 30, 1997
         (IN THOUSANDS, EXCEPT FOR PER SHARE DATA AND UNITS IN SERVICE)
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                                              PRO FORMA       PRO FORMA
                                                                                              METROCALL       METROCALL,
                                                                                                 AND         PAGE AMERICA
                                                                              METROCALL      PAGE AMERICA     AND PRONET
                                                                             ------------    ------------    ------------
<S>                                                                          <C>             <C>             <C>
CONDENSED COMBINED STATEMENTS OF OPERATIONS DATA:
  Total revenues..........................................................    $  137,050      $  146,377      $   205,369
  Operating expenses......................................................       133,738         144,789          222,839
  Loss from operations....................................................       (10,370)        (12,519)         (38,760)
  Interest and other income (expense), net................................       (15,847)        (17,052)         (25,671)
  Benefit (provision) for income taxes....................................         2,165           2,139            4,367
  Net loss................................................................       (24,052)        (27,432)         (60,064)
  Net loss per share......................................................         (0.96)          (0.95)           (1.46)
  Weighted average common shares outstanding..............................        24,978          28,975           41,281
OTHER DATA:
  Units in service (end of period)........................................     2,332,006       2,532,006        3,917,360
  EBITDA(2)...............................................................    $   33,179      $   34,597      $    49,484
CONDENSED COMBINED BALANCE SHEET DATA (AS OF JUNE 30, 1997):
  Working capital (deficit)...............................................    $    5,825      $    3,612      $   (13,257)
  Total assets............................................................       646,728         710,776        1,063,862
  Long-term obligations, net of current portion...........................       348,288         373,918          544,144
  Total stockholders' equity(3)...........................................       141,918         162,366          236,204
</TABLE>
 
- ---------------
(1) Pro Forma Metrocall gives effect to the acquisitions of Parkway, Satellite,
    A+ Network and Page America as if the acquisitions had occurred on January
    1, 1996.
 
(2) EBITDA (earnings before interest, taxes, depreciation and amortization),
    while not a measure under generally accepted accounting standards ("GAAP"),
    is a standard measure of financial performance in the paging industry;
    EBITDA should not be considered in isolation or as an alternative to net
    income (loss), income (loss) from operations, cash flows from operating
    activities, or any other measure of performance under GAAP. Pro forma EBITDA
    excludes certain nonrecurring charges related to Satellite and A+ Network of
    $0.4 million for the year ended December 31, 1996. Pro forma EBITDA excludes
    certain nonrecurring charges related to ProNet of approximately $8.8 million
    and $6.6 million for the year ended December 31, 1996 and six months ended
    June 30, 1997, respectively.
 
(3) The pro forma stockholders' equity assumes a per share price of $4.8125 for
    Metrocall Common Stock as of the closing date of the Page America
    Acquisition and $6.00 per share for the Merger. See "Pro Forma Condensed
    Combined Financial Data."
 
                                       12
<PAGE>   24
 
                      COMPARATIVE UNAUDITED PER SHARE DATA
 
     The following table sets forth certain pro forma per share data of
Metrocall and combined unaudited pro forma per share data after giving effect to
the Page America Acquisition and the Merger. This information should be read in
conjunction with the Pro Forma Condensed Combined Financial Data and the notes
thereto, the Metrocall Consolidated Financial Statements and the ProNet
Consolidated Financial Statements included herewith. The unaudited pro forma per
share data do not purport to represent what the Surviving Corporation's results
of operations or financial position actually would have been had such
transactions and events occurred on the dates specified, or to project the
Surviving Corporation's results of operations or financial position for any
future period or date.
 
<TABLE>
<CAPTION>
                                                                                             PRO FORMA
                                                                                             METROCALL,
                                                                            PRO FORMA       PAGE AMERICA
                                                          PRO FORMA       METROCALL AND         AND
                                                         METROCALL(1)    PAGE AMERICA(2)     PRONET(3)
                                                         ------------    ---------------    ------------
<S>                                                      <C>             <C>                <C>
Loss per share attributable to common stockholders:
  Year ended December 31, 1996........................      $(2.87)          $ (2.70)          $(2.82)
  Six months ended June 30, 1997......................       (0.96)            (0.95)           (1.46)
Book value per share; June 30, 1997...................        5.68              5.60             5.72
</TABLE>
 
- ---------------
(1) Reflects the acquisitions of Parkway, Satellite, and A+ Network by Metrocall
    as though each had occurred on January 1, 1996.
 
(2) Reflects the acquisition of Page America by Metrocall as though it had
    occurred on January 1, 1996.
 
(3) Reflects the Merger as though it had occurred on January 1, 1996.
 
            OTHER PROPOSALS TO BE PRESENTED AT THE METROCALL MEETING
 
     In addition to approval and adoption of the Merger Agreement, the Metrocall
stockholders are also being asked to consider and vote upon the Charter
Amendment to increase the number of authorized shares of Metrocall Common Stock
by 20,000,000 shares, from 60,000,000 shares to 80,000,000 shares. See
"AMENDMENT OF METROCALL CHARTER TO INCREASE THE NUMBER OF AUTHORIZED METROCALL
SHARES." The Metrocall stockholders are also being asked to consider and vote on
the Option Plan Amendment to increase the number of shares of Metrocall Common
Stock that may be issued under Metrocall's 1996 Stock Option Plan by 2,000,000
shares. See "AMENDMENT TO INCREASE THE NUMBER OF SHARES THAT MAY BE ISSUED UNDER
METROCALL'S 1996 STOCK OPTION PLAN." Finally, the Metrocall stockholders are
being asked to consider and vote on the ESPP Amendment to increase the number of
shares of Metrocall Common Stock that may be issued under Metrocall's Employee
Stock Purchase Plan by 700,000 shares. See "AMENDMENT TO INCREASE THE NUMBER OF
SHARES THAT MAY BE ISSUED UNDER METROCALL'S EMPLOYEE STOCK PURCHASE PLAN."
 
                                       13
<PAGE>   25
 
                                  RISK FACTORS
 
     The following are certain risk factors that should be carefully considered
by Metrocall and ProNet stockholders in evaluating the Merger in addition to the
other information described elsewhere or incorporated by reference in this Joint
Proxy Statement/Prospectus.
 
SUBSTANTIAL INDEBTEDNESS OF METROCALL
 
     At June 30, 1997, Metrocall had outstanding approximately $349.3 million in
indebtedness consisting of bank loans, senior subordinated notes, mortgage
indebtedness and capital leases. Metrocall has a credit facility (the "Metrocall
Credit Facility") in the principal amount of $375 million (of which $189.9
million was drawn as of June 30, 1997 and is included in the outstanding
indebtedness described above) subject to the limitations described below. On
July 1, 1997, Metrocall incurred additional indebtedness in connection with the
Page America Acquisition of approximately $26 million (financed under the
Metrocall Credit Facility) including transaction fees and expenses. Further, on
August 19, 1997, Metrocall increased its outstanding borrowings under the
Metrocall Credit Facility by $10 million primarily to fund working capital
requirements. Pursuant to the Merger, Metrocall will assume ProNet's $100
million principal amount of 11 7/8% Senior Subordinated Notes due 2005 (the
"ProNet Indenture") and will refinance ProNet's existing secured bank debt, of
which approximately $70 million was outstanding on June 30, 1997, with
borrowings under the Metrocall Credit Facility. Metrocall also has issued and
outstanding $39.9 million stated value of its Series A Convertible Preferred
Stock (the "Series A Preferred Stock"), the terms of which require Metrocall to
pay dividends, in cash or additional shares of Series A Preferred Stock, at a
rate of 14% per year. Metrocall is required to redeem all outstanding shares of
Series A Preferred Stock (including dividend shares) in November 2008 unless the
holders have previously converted such shares to Metrocall Common Stock. As part
of the consideration for the Page America Acquisition, Metrocall issued 1,500
shares of Series B Junior Convertible Preferred Stock (the "Series B Preferred
Stock"). Each share of Series B Preferred Stock has a stated value of $10,000
per share. The Series B Junior Convertible Preferred Stock carries a dividend of
14% of the stated value per share, payable semi-annually in cash or in
additional shares of Series B Preferred Stock, at Metrocall's option. The Series
B Preferred Stock must be redeemed in July 2009 for an amount equal to its
stated value, plus accrued and unpaid dividends. Metrocall also expects to incur
additional indebtedness (in the form of draws on the Metrocall Credit Facility
or otherwise) to meet working capital needs, in connection with future
acquisitions, or for other purposes. However, the ability to incur additional
indebtedness (including draws on the Metrocall Credit Facility) is subject to
certain limitations in the agreements relating to existing indebtedness, the
terms of the Series A Preferred Stock and Series B Preferred Stock and the terms
of the ProNet Indenture.
 
     Metrocall would be able to incur approximately $75 million of additional
indebtedness based on its operating results through June 30, 1997 and after
giving pro forma effect to the Page America Acquisition and the Merger. This
substantial indebtedness, along with the net losses and working capital deficits
sustained by Metrocall in recent periods, will have certain adverse consequences
for Metrocall, including the following: (i) the ability of Metrocall to obtain
additional financing for working capital, capital expenditures, debt service
requirements or other purposes may be impaired; (ii) a substantial portion of
Metrocall's cash flow from operations will be required to be dedicated to the
payment of Metrocall's interest expense; (iii) indebtedness under the Metrocall
Credit Facility bears interest at floating rates, which will cause Metrocall to
be vulnerable to increases in interest rates; (iv) Metrocall may be more highly
leveraged than companies with which it competes, which may place it at a
competitive disadvantage; and (v) Metrocall may be more vulnerable in the event
of a downturn in its business or in general economic conditions. See "-- History
of Net Losses." Moreover, the ability of Metrocall to meet its debt service and
other obligations (including compliance with financial covenants) will be
dependent upon the future performance of Metrocall and its cash flows from
operations, which will be subject to financial, business and other factors,
certain of which are beyond its control, such as prevailing economic conditions.
No assurance can be given that, in the event Metrocall were to require
additional financing, such additional financing would be available on terms
permitted by agreements relating to existing indebtedness or otherwise
satisfactory to Metrocall.
 
                                       14
<PAGE>   26
 
CHALLENGES OF BUSINESS INTEGRATION
 
     The Merger will require integration of each company's development,
administrative, finance, sales and marketing organizations, as well as the
integration of each company's communication networks and the coordination of its
sales efforts. Further, each company's customers will need to be reassured that
their paging services will continue uninterrupted. The diversion of management
attention and any difficulties encountered in the transition process could have
an adverse impact on the revenue and operating results of the Surviving
Corporation. Additionally, attempts to achieve economies of scale through cost
cutting and lay-offs of existing personnel may, at least in the short term, have
an adverse impact upon the Surviving Corporation.
 
     Metrocall believes that a key benefit to be realized from the Merger will
be the integration of paging service coverage, which will allow the Surviving
Corporation to provide paging services in new markets. There can be no
assurance, however, that the Surviving Corporation will be able to integrate
such paging service coverage successfully. If the Surviving Corporation is not
successful in integrating such paging service coverage, the business of the
Surviving Corporation will be adversely affected.
 
GROWTH STRATEGY
 
     Historically, Metrocall and ProNet have grown substantially through
acquisitions. The Surviving Corporation intends to pursue future acquisition
opportunities; however, no assurance can be given that the Surviving Corporation
will identify, finance and purchase additional suitable acquisitions on
acceptable terms, or that future acquisitions, if completed, will be successful.
The Surviving Corporation intends to pursue internal growth through expansion of
its paging operations. The Surviving Corporation's internal growth will depend,
in part, upon its ability to attract and retain skilled employees, and the
ability of the Surviving Corporation's officers and key employees to manage
successfully rapid growth and to implement appropriate management information
systems and controls. If the Surviving Corporation were unable to attract and
retain skilled employees, manage successfully rapid growth and/or implement
appropriate systems and controls, the Surviving Corporation's operations could
be adversely affected.
 
POSSIBLE IMPACT OF COMPETITION AND TECHNOLOGICAL CHANGE
 
     The Surviving Corporation will face competition from other paging companies
in all markets in which it will operate. The wireless communications industry is
highly competitive, with price being the primary means of differentiation among
providers of numeric messaging services (which account for the substantial
majority of the current revenues of both Metrocall and ProNet). Paging companies
also compete on the basis of coverage area, enhanced services, transmission
quality, system reliability and customer service. Certain of the Surviving
Corporation's competitors, which include regional and national paging companies,
possess greater financial, technical, marketing and other resources than those
of the Surviving Corporation. In addition, other entities offering wireless
two-way communications technology, including cellular telephone and specialized
mobile radio services, also compete with the paging services that the Surviving
Corporation will provide. There can be no assurance that additional competitors
will not enter markets served by the Surviving Corporation or that the Surviving
Corporation will be able to compete successfully. In this regard, certain long
distance telephone carriers have announced their intention to market paging
services jointly with other telecommunications services.
 
     The wireless communications industry is characterized by rapid
technological change. Future technological advances in the wireless
communications industry could create new services or products competitive with
the paging and wireless messaging services provided or to be developed by the
Surviving Corporation. Recent and proposed regulatory changes by the FCC are
aimed at encouraging such new services and products. In particular, in 1994, the
FCC began auctioning licenses for new personal communications services ("PCS").
The FCC's rules also provide for the private use of PCS spectrum on an
unlicensed basis. PCS will involve a network of small, lowpowered transceivers
placed throughout a neighborhood, business complex, community or metropolitan
area to provide customers with mobile voice and data communications. There are
two types of PCS: narrowband and broadband. Narrowband PCS is expected to
provide enhanced or advanced paging and messaging capabilities, such as
"acknowledgment paging" or "talk-back" paging. Broadband PCS is capable
 
                                       15
<PAGE>   27
 
of offering two-way voice communications and messaging services. Broadband PCS
is expected to compete with cellular telephone services and enhanced Specialized
Mobile Radio Services, as well as with conventional paging services. Several PCS
systems are currently operational. Additionally, other existing or prospective
radio services have the potential to compete with the Surviving Corporation. For
example, the FCC has authorized non-geostationary mobile satellite service
systems in several frequency bands, and has initiated proceedings to consider
making additional licenses in some of those bands available. Licensees in those
satellite services (some of whom have already launched satellites) are permitted
to offer signaling and other mobile services that could compete with terrestrial
paging companies. A recent FCC decision will allow land mobile licensees in the
220-222 MHz band to offer commercial paging services. The FCC has also initiated
a rule-making proceeding proposing to allow Multiple Address Systems, a fixed
microwave service in various 900 MHz frequency bands, to offer mobile services.
Any of these services may compete directly or indirectly with the Surviving
Corporation.
 
     Moreover, changes in technology could lower the cost of competitive
services and products to a level at which the Surviving Corporation's services
and products would become less competitive or at which the Surviving Corporation
would be required to reduce the prices of its services and products. There can
be no assurance that the Surviving Corporation will be able to develop or
introduce new services and products to remain competitive or that the Surviving
Corporation will not be adversely affected in the event of such technological
developments.
 
     Technological change also may affect the value of the pagers owned by the
Surviving Corporation and leased to its subscribers. If the Surviving
Corporation's subscribers requested more technologically advanced pagers, the
Surviving Corporation could incur additional inventory costs and capital
expenditures if it were required to replace pagers leased to its subscribers
within a short period of time.
 
HISTORY OF NET LOSSES
 
     Metrocall sustained net losses of $2.4 million, $20.1 million and $49.1
million for the years ended December 31, 1994, 1995 and 1996, respectively, and
$24.1 million for the six months ended June 30, 1997. No assurance can be given
that Metrocall will achieve profitability. In addition, at June 30, 1997,
Metrocall's accumulated deficit was approximately $124 million. Metrocall's
business requires substantial funds for capital expenditures and acquisitions
that result in significant depreciation and amortization charges. Additionally,
substantial levels of indebtedness, which will result in significant interest
expense, are expected to be outstanding in the foreseeable future. Accordingly,
net losses are expected to continue to be incurred in the future.
 
PENDING LITIGATION
 
     Metrocall/Source One.  In April 1996, Metrocall entered into an agreement
to purchase certain of the assets of Source One Wireless, Inc. ("Source One")
and placed $1 million cash in escrow. On June 26, 1996, Metrocall advised Source
One that Source One had failed to meet certain conditions to completion of the
transaction and terminated the agreement. On September 20, 1996, Source One
filed an action in the Circuit Court of Cook County, Illinois claiming that
Metrocall had breached the agreement and seeking specific performance of the
purchase agreement or unspecified damages in excess of $80 million. Metrocall
removed the action to the United States District Court for the Northern District
of Illinois. Metrocall intends to vigorously defend the claims in this action
and believes it has meritorious defenses to this action. Metrocall has denied
the claim and asserted affirmative defenses and counterclaims based on
misrepresentations and breaches of contract by Source One. The matter is now in
discovery, which is scheduled to be completed by the end of October 1997; trial
is not expected before January 1998.
 
     ProNet Securities Litigation.  ProNet and certain of its officers and
directors are defendants in seven separate actions alleging various violations
of federal and state securities laws. The actions collectively assert claims on
behalf of all persons who purchased shares of ProNet Common Stock in ProNet's
public offering of 4,000,000 shares that commenced on May 31, 1996 and all
persons who purchased shares of ProNet Common
 
                                       16
<PAGE>   28
 
Stock in the open market during an alleged class period. These actions are
collectively referred to as the "ProNet Securities Litigation."
 
     Each of the federal actions has been consolidated into two cases pending in
the Northern District of Texas in Dallas. The three state actions have been
consolidated into a single action pending in the 14th District Court of Dallas
County, Texas.
 
     On September   , 1997, ProNet entered into an agreement to settle the state
and federal cases. ProNet and its insurance carriers will pay $       million to
settle all claims against ProNet and its officers and directors. ProNet will
issue one million shares of ProNet Common Stock to the class. ProNet will also
pay $2 million to the class if, within two years from final approval of the
settlement, the Merger is completed or ProNet engages in another merger or
similar transaction which results in "change of control" of ProNet.
Additionally, as part of ProNet's separate agreement with its former
underwriters relating to the litigation, ProNet has agreed to pay an additional
$400,000 to the plaintiffs in the ProNet Securities Litigation in exchange for
an agreement with the former underwriters to mutually release certain claims
between ProNet and its former underwriters. The proposed settlement is subject
to court approval.
 
     On September   , 1997, the United States District Court for the Northern
District of Texas preliminarily approved the proposed settlement. The Court set
a hearing on the parties' joint motion for entry of a final judgment approving
the settlement for November   , 1997 at      o'clock.
 
     Class Action Suit.  On August 13, 1997, ProNet and certain of its directors
were named in a class action complaint filed in the Court of Chancery for the
State of Delaware in and for New Castle County. The case is styled, Jerry Krim
v. ProNet Inc., et al, C.A. No. 15873. In this action, the plaintiff alleges
that ProNet stockholders will receive inadequate consideration in the Merger.
The plaintiffs further allege various breaches by the director defendants in
connection with the proposed Merger. The defendants view the complaint as
meritless and on September 5, 1997 filed a motion to dismiss plaintiff's
complaint. That motion is pending before the Court.
 
SUBSCRIBER TURNOVER
 
     The results of operations of paging service providers, such as Metrocall,
can be significantly affected by subscriber cancellations and by subscribers who
switch their service to other carriers. To realize net growth in subscribers,
disconnected subscribers must be replaced and new subscribers must be added. The
sales and marketing costs associated with attracting new subscribers are
substantial relative to the costs of providing service to existing customers.
Because the Surviving Corporation's business will be characterized by high fixed
costs, disconnections directly and adversely will affect the Surviving
Corporation's results of operations. An increase in its subscriber cancellation
rate may adversely affect the Surviving Corporation's results of operations.
 
POTENTIAL FOR CHANGE IN REGULATORY ENVIRONMENT
 
     The Surviving Corporation's paging operations will be subject to regulation
by the FCC and, to a lesser extent, by various state regulatory agencies. There
can be no assurance that those agencies will not adopt regulations or take
actions that would have a material adverse effect on the business of the
Surviving Corporation. Changes in regulation of the Surviving Corporation's
paging business or the allocation of radio spectrum for services that compete
with the Surviving Corporation's business could adversely affect the Surviving
Corporation's results of operations. For example, the FCC has adopted rules
under which it will issue paging licenses on a wide-area basis by competitive
bidding (i.e., auctions). Although Metrocall believes that these rule changes
may simplify the Surviving Corporation's regulatory compliance burdens,
particularly regarding adding or relocating transmitter sites, those rule
changes may also increase the Surviving Corporation's costs of obtaining paging
licenses.
 
                                       17
<PAGE>   29
 
RELIANCE ON KEY PERSONNEL
 
     Metrocall is dependent on the efforts and abilities of a number of its
current key management, sales, support and technical personnel, including
William L. Collins, III, Steven D. Jacoby and Vincent D. Kelly. The success of
the Surviving Corporation will depend to a large extent on its ability to retain
and continue to attract key employees. The loss of certain of these employees or
the Surviving Corporation's inability to retain or attract key employees in the
future could have an adverse effect on the Surviving Corporation's operations.
Metrocall has employment contracts with each of the individuals named above.
ProNet's executive management will not continue with the Surviving Corporation.
See "MANAGEMENT OF THE SURVIVING CORPORATION."
 
NO ANTICIPATED STOCKHOLDER DISTRIBUTIONS
 
     It is not anticipated that the Surviving Corporation will pay cash
dividends in the foreseeable future. Certain covenants in the Metrocall Credit
Facility and in Metrocall's indentures limit the payment of cash dividends on
capital stock, and the Metrocall Credit Facility and the terms of the Series A
Preferred Stock and Series B Preferred Stock prohibit the payment of cash
dividends on Metrocall Common Stock. See "DESCRIPTION OF METROCALL CAPITAL
STOCK."
 
POSSIBLE VOLATILITY OF STOCK PRICE; SHARES ELIGIBLE FOR FUTURE SALE
 
     The value realized by ProNet stockholders in the Merger and the value
assigned to intangible assets recorded in the purchase accounting for the
Surviving Corporation will depend upon the market price of Metrocall Common
Stock, which is subject to fluctuation. Since the Metrocall Common Stock became
publicly traded in July 1993, the closing price has ranged from a low of $3.75
per share to a high of $29 per share. On June 30, 1997, the closing price of
Metrocall Common Stock was $4.50, which was less than the book value per share
on June 30, 1997 of approximately $5.66. The market price of Metrocall Common
Stock may be volatile due to, among other things, technological innovations
affecting the paging industry, Metrocall's acquisition strategy and the shares
being registered pursuant to this and other registration statements.
 
     In addition to the shares of Metrocall Common Stock being registered
pursuant to the Registration Statement of which this Joint Proxy
Statement/Prospectus is a part, Metrocall currently has filed registration
statements with respect to approximately 23.5 million shares of Metrocall Common
Stock held by certain stockholders of Metrocall, including 2.9 million shares of
Metrocall Common Stock issuable upon the exercise of warrants held by the
holders of Metrocall's Series A Preferred Stock. In addition, the Series A
Preferred Stock and Series B Preferred Stock are convertible in certain
circumstances into shares of Metrocall Common Stock based on the market price of
the Metrocall Common Stock at the time of conversion, and the holders have the
right to require Metrocall to register the Metrocall Common Stock for resale.
Metrocall also is obligated to register shares of Metrocall Common Stock
acquired by certain affiliates of A+ Network, Inc. in the merger of Metrocall
with A+ Network, Inc. Furthermore, in connection with that merger, Metrocall
also issued indexed variable common rights ("VCRs") which, in certain
circumstances, could require Metrocall to issue additional shares of Metrocall
Common Stock. There can be no assurance that any action taken by holders of
these shares or other stockholders would not have an adverse effect on the
market price of the Metrocall Common Stock.
 
ANTI-TAKEOVER AND OTHER PROVISIONS
 
     Metrocall's Amended and Restated Certificate of Incorporation, as amended
(the "Metrocall Certificate"), and Metrocall's Fifth Amended and Restated Bylaws
(the "Metrocall By-laws") include provisions that could operate to delay, defer
or prevent a change of control in the event of certain transactions such as a
tender offer, merger or sale or transfer of substantially all of Metrocall's
assets. These provisions are expected to discourage certain types of coercive
takeover practices and inadequate takeover bids and to encourage persons seeking
to acquire control of Metrocall first to negotiate with the Board of Directors
of Metrocall. In addition, each of the Metrocall Credit Facility, an indenture
relating to notes issued by Metrocall, the ProNet
 
                                       18
<PAGE>   30
 
Indenture and the terms of the Series A Preferred Stock and Series B Preferred
Stock include certain covenants limiting the ability of Metrocall to engage in
certain mergers and consolidations or transactions involving a change of control
of Metrocall.
 
     The Metrocall Certificate authorizes the Board of Directors, when
considering a tender offer, merger or acquisition proposal, to take into account
factors in addition to potential economic benefits to stockholders. In addition,
the Metrocall Certificate generally prohibits Metrocall from purchasing any
shares of Metrocall's stock from any person, entity or group that beneficially
owns 5% or more of Metrocall's stock at a price exceeding the average closing
price for the 20 business days prior to the purchase date, unless a majority of
Metrocall's disinterested stockholders approve the transaction, or as may be
necessary to protect Metrocall's regulatory licenses.
 
     Metrocall is and the Surviving Corporation will be subject to the
provisions of Section 203 of the Delaware General Corporation Law (the "DGCL"),
as amended ("Section 203"). Under Section 203, a resident domestic corporation
may not engage in a business combination with a person who owns (or within three
years prior did own) 15% or more of the corporation's outstanding voting stock
(an "interested stockholder") for a period of three years after the date such
person became an interested stockholder, unless (i) prior to such date the board
of directors approved either the business combination or the transaction which
resulted in the stockholder becoming an interested stockholder, (ii) upon
consummation of the transaction which resulted in such person becoming an
interested stockholder, the interested stockholder owned at least 85% of the
corporation's voting stock outstanding at the time the transaction commenced, or
(iii) on or subsequent to such date the business combination is approved by the
board of directors and authorized by the affirmative vote of holders of at least
two-thirds of the outstanding voting stock which is not owned by the interested
stockholder.
 
POTENTIAL CONFLICTS OF INTEREST
 
     Certain members of the Board of Directors of ProNet and senior management
of ProNet have interests in the transactions contemplated under the Merger
Agreement other than as stockholders of ProNet. Certain of such persons have
entered into non-competition and other agreements with Metrocall that will
become effective upon consummation of the Merger and/or are to be appointed to
the Metrocall Board of Directors effective as of the Effective Time. The Boards
of Directors of Metrocall and ProNet were aware of these potential conflicts at
the time of their approval of the Merger Agreement. A summary of these potential
conflicts of interest and certain agreements between Metrocall and ProNet and
certain members of their respective Boards of Directors and senior management is
provided in "THE MERGER AND RELATED TRANSACTIONS -- Interests of Certain Persons
with Respect to the Merger."
 
INTANGIBLE ASSETS
 
     Metrocall's intangible assets, net of accumulated amortization, have
increased significantly since June 30, 1996 primarily as a result of Metrocall's
1996 acquisitions of Parkway Paging, Inc., O.R. Estman, Inc., Dana Paging, Inc.,
and A+ Network, Inc. At June 30, 1997, Metrocall's total assets of approximately
$646.7 million included net intangible assets of approximately $440.4 million.
Intangible assets include FCC licenses and certificates, customer lists, debt
financing costs, goodwill and certain other intangibles. Metrocall will record,
for financial reporting purposes, additional intangible assets in connection
with its acquisition of the assets of Page America in 1997 and, if consummated,
the Merger. Long-lived assets and identifiable intangibles to be held and used
are reviewed for impairment whenever events or changes in circumstances indicate
that the carrying amount should be addressed. Impairment is measured by
comparing the book value to the estimated undiscounted future cash flows
expected to result from use of the assets and their eventual disposition.
Metrocall's estimates of anticipated gross revenues, the remaining estimated
lives of tangible and intangible assets, or both could be reduced significantly
in the future due to changes in technology, regulation, available financing or
competitive pressures in any of Metrocall's individual markets. As a result, the
carrying amount of long-lived assets and intangible assets including goodwill
could be reduced materially in the future.
 
                                       19
<PAGE>   31
 
FORWARD-LOOKING STATEMENTS
 
     This Joint Proxy Statement/Prospectus contains forward-looking statements
within the meaning of Section 27A of the Securities Act and Section 21E of the
Exchange Act. All statements other than statements of historical fact included
in this Joint Proxy Statement/Prospectus including, without limitation, the
statements of Metrocall's, ProNet's or the Surviving Corporation's future
financial results, financial position, business strategy, budgets, projected
costs and plans and objectives of management are forward-looking statements.
Although ProNet and Metrocall believe their respective expectations are based
upon reasonable assumptions, no assurance can be given that actual results may
not differ materially from those in the forward looking statements. In addition,
when used in this Joint Proxy Statement/Prospectus, the words "believes,"
"anticipates," "expects" and similar expressions are intended to identify
forward-looking statements. Such statements are subject to a number of risks and
uncertainties. Actual results in the future could differ materially from those
described in the forward-looking statements as a result of the risk factors set
forth above and the matters set forth in this Joint Proxy Statement/Prospectus
generally. For a more detailed discussion of the factors which could cause
actual results to vary from those disclosed in forward-looking statements,
reference is made to the factors discussed above and to the cautionary language
contained in each company's periodic reports that are incorporated herein by
reference. Neither Metrocall, ProNet nor the Surviving Corporation undertakes
any obligation to publicly release the result of any revisions to these
forward-looking statements that may be made to reflect any future events or
circumstances.
 
                                  THE MEETINGS
 
DATE, TIME AND PLACE OF MEETINGS
 
     The Metrocall Meeting will be held at 9:00 a.m., eastern time, on December
17, 1997, at the Ritz-Carlton, Pentagon City, 1250 South Hayes Street,
Arlington, Virginia. The ProNet Meeting will be held at           , central
time, on           , 1997 at the           , Texas.
 
PURPOSE OF THE MEETINGS
 
     The purpose of the Metrocall Meeting is to consider and act upon the
following proposals: (i) to approve and adopt the Merger Agreement; (ii) to
approve and adopt the Charter Amendment, which increases the authorized shares
of Metrocall Common Stock by 20,000,000 shares, from 60,000,000 shares to
80,000,000 shares; (iii) to approve and adopt the Option Plan Amendment, which
increases the number of shares that may be issued under Metrocall's 1996 Stock
Option Plan by 2,000,000 shares; and (iv) to approve and adopt the ESPP
Amendment, which increases the number of shares that may be issued under
Metrocall's Employee Stock Purchase Plan by 700,000 shares.
 
     The sole purpose of the ProNet Meeting is to consider and act upon the
proposal to approve and adopt the Merger Agreement.
 
RECORD DATE AND OUTSTANDING SHARES
 
     Only holders of record of Metrocall Common Stock and holders of record of
ProNet Common Stock at the close of business on the Metrocall Record Date and
the ProNet Record Date, respectively, are entitled to notice of, and to vote at,
the Metrocall Meeting and the ProNet Meeting, respectively.
 
     On the Metrocall Record Date, there were approximately      holders of
record of Metrocall Common Stock and [29,198,600] shares of Metrocall Common
Stock issued and outstanding. Each share of Metrocall Common Stock entitles the
holder thereof to one vote on each matter submitted for stockholder approval.
 
     On the ProNet Record Date, there were approximately      holders of record
of ProNet Common Stock and      shares of ProNet Common Stock issued and
outstanding. Each share of ProNet Common Stock entitles the holder thereof to
one vote on each matter submitted for stockholder approval.
 
                                       20
<PAGE>   32
 
VOTING AND REVOCATION OF PROXIES
 
     All proxies in the enclosed forms of proxy card that are properly executed
and returned to Metrocall or ProNet, as the case may be, prior to commencement
of voting at the applicable Stockholders Meeting will be voted at the applicable
Stockholders Meeting or any adjournments or postponements thereof in accordance
with the instructions thereon. All executed but unmarked Metrocall and ProNet
proxies will be voted FOR approval and adoption of the Merger Agreement and, in
the case of Metrocall, FOR approval and adoption of the Charter Amendment, FOR
approval and adoption of the Option Plan Amendment and FOR approval and adoption
of the ESPP Amendment. Any proxy may be revoked by any stockholder who attends
his or her applicable Stockholders Meeting and gives notice of his or her
intention to vote in person without compliance with any other formalities. In
addition, any Metrocall or ProNet stockholder may revoke a proxy at any time
before it is voted by executing and delivering a subsequent proxy or by
delivering a written notice to the Secretary of Metrocall or ProNet, as
applicable, stating that the proxy is revoked. At each Stockholders Meeting,
stockholder votes will be tabulated by persons appointed by the respective
Boards of Directors to act as inspectors of election.
 
     The managements of Metrocall and ProNet do not know of any matters other
than those set forth herein that may come before the Stockholders Meetings. If
any other matters are properly presented to either Stockholders Meeting for
action, it is intended that the persons named in the applicable form of proxy
will vote in accordance with their best judgment on such matters.
 
VOTE REQUIRED FOR APPROVAL
 
     Metrocall.  The presence, in person or by proxy, of at least a majority of
the shares of Metrocall Common Stock outstanding on the Metrocall Record Date
(29,198,600 shares) is necessary to constitute a quorum at the Metrocall
Meeting. The affirmative vote of the stockholders of a majority of shares of
Metrocall Common Stock outstanding and entitled to vote at the Metrocall Meeting
is necessary to approve and adopt each of the Merger Agreement and the Charter
Amendment. The Option Plan Amendment and the ESPP Amendment will be approved if
the votes cast in favor of the Option Plan Amendment and the ESPP Amendment,
respectively, exceed the votes opposing such actions. Abstentions and broker
non-votes will be treated as shares that are present and entitled to vote for
purposes of determining the presence of a quorum. Abstentions will be treated as
votes cast against the Merger Agreement and the Charter Amendment, but will not
be counted for purposes of the Option Plan Amendment or the ESPP Amendment.
Broker non-votes will be equivalent to votes cast against the Merger Agreement
and the Charter Amendment, but will not be counted for purposes of the Option
Plan Amendment or the ESPP Amendment.
 
     On the Metrocall Record Date, directors and executive officers, and their
affiliates, of Metrocall exercised voting control over an aggregate of
[9,761,413] shares of the outstanding Metrocall Common Stock (approximately
[33.4]% of the shares entitled to vote at the Metrocall Meeting). All directors
and executive officers, and their affiliates, of Metrocall owning shares of
Metrocall Common Stock have indicated their intention to vote their shares for
approval of the Merger Agreement, the Charter Amendment, the Option Plan
Amendment and the ESPP Amendment.
 
     Pursuant to the terms of the Stockholders Agreement, certain stockholders
of Metrocall have agreed to vote certain of their shares of Metrocall Common
Stock (which constitute approximately 32% of the issued and outstanding shares
as of the date of the Stockholders Agreement) in favor of the Merger and the
Charter Amendment.
 
     ProNet.  The presence, in person or by proxy, of at least a majority of the
shares of ProNet Common Stock outstanding on the ProNet Record Date (
shares) is necessary to constitute a quorum at the ProNet Meeting. The
affirmative vote of the stockholders of a majority of the outstanding shares of
ProNet Common Stock is necessary to approve and adopt the Merger Agreement. Each
share of ProNet Common Stock is entitled to one vote. Abstentions and broker
non-votes will be treated as shares that are present and entitled to vote for
purposes of determining the presence of a quorum at the ProNet Meeting, but will
be equivalent to votes cast against the Merger Agreement.
 
                                       21
<PAGE>   33
 
     On the ProNet Record Date, directors and executive officers, and their
affiliates, of ProNet exercised voting control over an aggregate of      shares
of the outstanding ProNet Common Stock (approximately      % of the shares
entitled to vote at the ProNet Meeting). All directors and executive officers,
and their affiliates, of ProNet owning shares of ProNet Common Stock have
indicated their intention to vote their shares for approval of the Merger
Agreement and the Merger. See "THE MERGER AND RELATED TRANSACTIONS -- Background
of the Merger."
 
SOLICITATION OF PROXIES
 
     The expense of printing this Joint Proxy Statement/Prospectus and the
proxies solicited hereby, and any registration or filing fees incurred in
connection with the Registration Statement, this Joint Proxy
Statement/Prospectus and certain other filings, will be split equally by
Metrocall and ProNet; provided, however, that the filing fee for this Joint
Proxy Statement/Prospectus or Registration Statement will be borne by Metrocall.
In addition to the use of the mails, proxies may be solicited by officers and
directors and employees of Metrocall or ProNet, without additional remuneration,
by personal interviews, telephone, facsimile or otherwise. Metrocall and ProNet
may also request brokerage firms, nominees, custodians and fiduciaries to
forward proxy materials to beneficial owners of shares of Metrocall Common Stock
or ProNet Common Stock, as the case may be, and will provide reimbursement for
the cost of forwarding the material in accordance with customary charges.
Metrocall and ProNet have retained Corporate Investor Communications at an
estimated cost of $10,000, plus reimbursement of expenses, to assist in its
solicitation of proxies from brokers, nominees, institutions and individuals.
 
OTHER MATTERS
 
     At the date of this Joint Proxy Statement/Prospectus, the respective Boards
of Directors of Metrocall and ProNet do not know of any business to be presented
at their respective meetings other than as set forth in the notices accompanying
this Joint Proxy Statement/Prospectus. If any other matter should properly come
before either of the Stockholders Meetings, it is intended that the shares
represented by proxies will be voted with respect to such matters in accordance
with the judgment of the persons voting such proxies.
 
APPRAISAL RIGHTS
 
     Under Delaware law, stockholders of Metrocall or ProNet are not entitled to
dissenters' rights of appraisal in connection with the Merger.
 
                      THE MERGER AND RELATED TRANSACTIONS
 
GENERAL DESCRIPTION OF THE MERGER
 
     Upon the terms and subject to the conditions contained in the Merger
Agreement, including the requisite votes of the stockholders of Metrocall and
ProNet in accordance with the relevant provisions of the DGCL and receipt of FCC
approval, ProNet will be merged with and into Metrocall and Metrocall will be
the Surviving Corporation. At the Effective Time, each outstanding share of
ProNet Common Stock (other than ProNet Shares held by Metrocall or any of its
subsidiaries, which will be canceled) will be converted into the right to
receive that number of shares of Metrocall Common Stock equal to the Conversion
Ratio. Fractional shares of Metrocall Common Stock will not be issued in
connection with the Merger. A holder otherwise entitled to a fractional share
will be paid cash in lieu of such fractional share in an amount equal to the
product of the closing price of a share of Metrocall Common Stock on the trading
day immediately prior to the closing of the Merger multiplied by the fraction of
a share to which such holder would otherwise be entitled. The Conversion Ratio
represents the basic conversion ratio of 0.90 of a share of Metrocall Common
Stock for each share of ProNet Common Stock, subject to adjustment if certain
liabilities of ProNet exceed certain targets, if annualized operating cash flow
(earnings before interest, taxes, depreciation and amortization) of ProNet is
less or more than certain targets, and if new pager inventory of ProNet falls
below certain targets. See "DESCRIPTION OF METROCALL COMMON STOCK" for a
description of the Metrocall Common
 
                                       22
<PAGE>   34
 
Stock. Pursuant to the Option Agreement dated August 8, 1997 between Metrocall
and ProNet, ProNet has granted Metrocall an irrevocable option to purchase up to
2,450,000 shares of ProNet Common Stock at a price of $5.40 per share. The
option is only exercisable upon the occurrence of certain events, and the number
of shares issuable upon the exercise of the option and the exercise price are
subject to certain adjustments. See "-- Option Agreement" for a description of
the option.
 
BACKGROUND OF THE MERGER
 
     In early 1996, Metrocall adopted a three-phase consolidation strategy.
These phases were designed to increase the size and operating scale of
Metrocall's operations and to provide a basis as a long term provider of
wireless messaging products and services. Phase I consisted of a series of
acquisitions of smaller, less-capitalized or privately-owned paging businesses
designed both to enter new strategic and geographical markets and to fold in
existing operations providing operating scale and efficiency. This phase was
implemented through the acquisitions of the assets of Satellite, Parkway, and
Page America, each of which were announced and closed in 1996, except for the
Page America Acquisition, which closed in July 1997. Approximately 440,000
subscribers were added through these acquisitions. Phase II consisted of the
acquisition of a major regional paging company to increase Metrocall's
subscriber base to over 2 million. This phase was implemented through the merger
with A+ Network, and acquisition of its approximately 660,000 subscribers, in
November 1996. Phase III contemplated a major national acquisition which, when
combined with internal growth, would broaden Metrocall's subscriber base to over
3 million. With the closing of the Page America Acquisition in July 1997,
Metrocall essentially completed the first two phases of this plan. In
conjunction with this plan, Metrocall had identified ProNet as a possible
strategic combination partner.
 
     In 1993, ProNet management recognized that its operating expertise,
combined with its presence in major metropolitan markets, presented an
opportunity to capitalize on the growing demand for pagers among business users
and the population at large. ProNet management articulated a three-phase growth
plan to position ProNet as a leading provider of paging services. In the first
phase, ProNet (i) identified its Super Center locations, (ii) targeted
acquisitions that could be executed in a cost-effective manner to create a
critical mass in each region and (iii) obtained debt and equity capital to fund
the expansion of its operations. In the second phase of the growth plan, ProNet
(i) completed the construction of its Super Center facilities, (ii) integrated
its acquisitions into its Super Center operations and (iii) emphasized internal
growth of its increased subscriber base. As a part of the third phase of the
growth plan, ProNet acquired a nationwide paging license from Motorola, Inc. and
explored larger acquisitions, including its abandoned merger with Teletouch
Communications, Inc. In June 1996, market prices for publicly traded paging
services companies began a substantial decline which continued into 1997. As a
result of this decline, ProNet and other paging companies have been unable to
raise additional capital to fund further growth. In this environment and because
ProNet management believes that consolidation in the paging industry is
continuing, ProNet management began to explore the potential for a strategic
business combination with another large paging services company. ProNet
management had discussions with several large paging companies during the period
from February 1997 to late June 1997. None of these discussions resulted in a
proposal that was acceptable to ProNet.
 
HISTORY OF THE NEGOTIATIONS
 
     On two separate occasions in 1993 and 1995, Metrocall and ProNet engaged in
preliminary discussions regarding a possible combination of the two companies.
In each case, these discussions were abandoned prior to the parties' reaching
agreement as to the structure or terms of any such combination.
 
     The discussions that eventually resulted in the execution of the Merger
Agreement began in early May 1997. At an industry conference in Florida, William
L. Collins, III, Metrocall's President, Chief Executive Officer and Vice
Chairman of the Board, and Jackie R. Kimzey, ProNet's Chairman of the Board and
Chief Executive Officer, briefly discussed the strategic potential of a
combination of Metrocall and ProNet. Neither Mr. Collins nor Mr. Kimzey proposed
specific terms for such a combination but they agreed to continue the
discussions.
 
                                       23
<PAGE>   35
 
     The parties scheduled meetings in late May 1997 at Metrocall's offices in
Alexandria, Virginia to exchange financial and other information regarding the
two companies. The May meetings were held on May 28 and 29 and were attended on
Metrocall's behalf by Mr. Collins, Vincent D. Kelly, Metrocall's Chief Financial
Officer, Treasurer and Executive Vice President, and Steven D. Jacoby,
Metrocall's Executive Vice President and Chief Operating Officer, and on
ProNet's behalf by Mr. Kimzey and David J. Vucina, ProNet's President and Chief
Operating Officer. In connection with these meetings the parties entered into a
confidentiality agreement dated as of May 30, 1997.
 
     Also on May 28, prior to the meeting in Washington, D.C., Messrs. Kimzey
and Vucina, together with Jan E. Gaulding, ProNet's Senior Vice President, Chief
Financial Officer and Treasurer, and Mark A. Solls, ProNet's Vice President,
General Counsel and Secretary, met with ProNet's Board of Directors to advise
them of the discussions with Metrocall. Because this meeting preceded the first
substantive discussions with Metrocall, no specific issues regarding the Merger
were addressed.
 
     On June 2, 1997, Messrs. Collins and Kimzey met at Metrocall's offices in
Alexandria, Virginia to discuss the objectives of the possible combination and
to explore alternatives for structuring the combination.
 
     During the month of June 1997, Metrocall and ProNet and their respective
legal and financial advisors conducted legal and financial due diligence
investigations.
 
     On June 23 and 24, in connection with the companies' due diligence
investigations, certain members of Metrocall and ProNet management, including
Messrs. Kelly and Solls and Ms. Gaulding, and their respective financial and
legal advisors met in Washington, D.C. to discuss the companies' recent
operating results, the status of the ProNet Securities Litigation, the
companies' other pending litigation and other related issues.
 
     On June 28, the ProNet Board of Directors met to discuss the status of the
negotiations. This meeting was attended by Messrs. Kimzey and Vucina and Mr.
Solls and Ms. Gaulding. Representatives of Salomon Brothers and Vinson & Elkins
L.L.P., ProNet's legal advisors, were also present. At the meeting, the ProNet
Board of Directors was informed that, although specific economic terms had not
been proposed, management expected that certain members of management would be
asked to enter into non-competition agreements. The ProNet Board was also
advised of its fiduciary duties in considering and entering into a transaction
such as the Merger.
 
     On July 9, 1997, the parties met in Washington, D.C. Metrocall, represented
by Mr. Kelly, and representatives of Morgan Stanley and Toronto-Dominion
Securities (USA), Inc., proposed terms for a stock for stock direct merger of
ProNet with Metrocall. ProNet, represented by Messrs. Kimzey, Vucina and Solls
and Ms. Gaulding and representatives of Solomon Brothers, informed the Metrocall
representatives that the proposed exchange ratio and certain other proposed
terms were unacceptable.
 
     On July 17, Messrs. Collins and Kimzey discussed the status of the
negotiations on the telephone and agreed to meet the following week.
 
     On July 24, the parties reconvened at the offices of Salomon Brothers in
New York City and resumed discussions regarding the principal terms and
structure of the proposed combination. At this meeting, the parties tentatively
agreed upon a ratio of 0.90 of each share of Metrocall Common Stock for each
share of ProNet Common Stock, subject to negotiations of other material terms of
the transaction, including adjustments to the conversion ratio. Metrocall
indicated that its willingness to enter into the Merger Agreement would be
conditioned on its receiving an option to purchase up to 19.9% of issued and
outstanding ProNet Common Stock in the event ProNet accepted an Acquisition
Proposal. ProNet indicated that its agreement would be conditioned on
stockholders representing a substantial block of Metrocall Common Stock agreeing
to vote in favor of the Merger. The parties agreed to resume the negotiations
the following week.
 
     From July 29 through July 30, senior management of both companies and their
respective financial and legal advisors met in Washington, D.C. to further
negotiate the principal terms of the Merger Agreement, the Stockholders
Agreement and the Option Agreement.
 
     In a series of conference calls from August 4 through August 8, senior
management of both companies and their respective financial and legal advisors
finalized the terms of the Merger Agreement, the Stockhold-
 
                                       24
<PAGE>   36
 
ers Agreement and the Option Agreement. See "THE MERGER AGREEMENT AND TERMS OF
THE MERGER" and "-- Stockholders Voting Agreement" and "-- Option Agreement."
 
     On August 5, a special meeting of ProNet's Board of Directors was convened
for the purpose of considering the adoption and approval of the Merger
Agreement. At this special meeting representatives of Salomon Brothers presented
their fairness opinion to ProNet's Board of Directors and the ProNet Board of
Directors approved and adopted the terms of the Merger Agreement and authorized
ProNet's executive officers to execute and deliver the Merger Agreement.
 
     At a meeting on August 6, 1997, Metrocall's Board of Directors authorized
management to execute and deliver the Merger Agreement and the Option Agreement,
subject to approval by Metrocall bank lenders and satisfactory resolution of
other open issues. The parties executed definitive agreements during the evening
of August 8, 1997. The agreements were announced on August 11, 1997.
 
     On August 13, ProNet and certain of its directors were named as defendants
in a class action lawsuit relating to the Merger. See "RISK FACTORS -- Pending
Litigation."
 
RECOMMENDATION OF THE BOARD OF DIRECTORS OF METROCALL
 
     The Board of Directors of Metrocall has unanimously approved the Merger
Agreement and has determined that the Merger is fair to, and in the best
interests of, Metrocall and its stockholders. The Board of Directors has
unanimously recommended that the stockholders of Metrocall vote FOR the approval
and adoption of the Merger Agreement.
 
METROCALL'S REASONS FOR THE MERGER
 
     In reaching its determination that the Merger Agreement and the
transactions contemplated thereby, are fair to and in the best interests of
Metrocall and its stockholders, the Metrocall Board considered a number of
factors, which factors taken together support such determination, including
without limitation the following:
 
          1. The knowledge of the Metrocall Board of Directors of the business,
     operations, properties, assets, financial condition and operating results
     of Metrocall.
 
          2. The terms of the Merger Agreement, the Option Agreement and the
     Stockholders Agreement, including the consideration in the Merger, the
     provisions for adjustment of the Conversion Ratio, and other terms in light
     of the likelihood that the Merger would be completed.
 
          3. The review by the Metrocall Board of Directors of recent
     transactions involving companies with comparable businesses and the trading
     prices of the shares of such companies that are publicly traded.
 
          4. Recent trading prices of Metrocall Common Stock and ProNet Common
     Stock.
 
          5. Certain financial data of Metrocall and ProNet, including revenues,
     cash flow, leverage and capital structure, and Metrocall management's
     assessment of the operating performance and prospects of both companies.
 
          6. The opinion of Morgan Stanley to the effect that, as of August 8,
     1997 and based upon and subject to certain matters stated therein, the
     Conversion Ratio pursuant to the Merger Agreement is fair from a financial
     point of view to Metrocall.
 
          7. The fact that the markets currently covered by ProNet and Metrocall
     are complementary and the Surviving Corporation will have a significant
     subscriber base with a strong market presence in the Southwest region.
 
          8. The operational synergies that the Board of Directors of Metrocall
     believes the Surviving Corporation will realize in development,
     administration, marketing and sales, including the ability to realize
     savings by locating ProNet's nationwide frequency within Metrocall's
     already existing nationwide paging network, and elimination of redundant
     back office and corporate functions.
 
                                       25
<PAGE>   37
 
          9. Certain business factors relating to ProNet, including its
     personnel, FCC licenses, technical strengths and marketing distribution
     channels.
 
          10. The difficulties that may be encountered in merging the two
     companies' organizations, managements, technology and facilities as well as
     the potential loss of revenue that might result in the short term due to
     uncertainty among customers and employees caused by the Merger.
 
          11. Metrocall management's view that the Merger would increase its
     investor base and market capitalization, thereby increasing liquidity.
 
          12. Pending and potential litigation matters involving ProNet.
 
     The foregoing discussion of the information and factors considered by the
Metrocall Board of Directors is not meant to be exhaustive, but is believed to
include the material factors considered by the Metrocall Board of Directors. In
reaching its determination, the Metrocall Board of Directors took the various
factors into account collectively and the Metrocall Board of Directors did not
perform a factor-by-factor analysis, nor did the Metrocall Board of Directors
consider whether any individual factor was, on balance, positive or negative. In
addition, different members of the Metrocall Board of Directors may have weighed
such factors differently and considered other factors.
 
     THE METROCALL BOARD OF DIRECTORS RECOMMENDS THAT METROCALL STOCKHOLDERS
VOTE FOR THE MERGER AGREEMENT.
 
OPINION OF FINANCIAL ADVISOR TO METROCALL
 
     Morgan Stanley was engaged by Metrocall to act as a financial advisor to
the Metrocall Board of Directors in connection with the Merger. At the August 6,
1997 meeting of the Metrocall Board of Directors, Morgan Stanley delivered its
oral opinion to the Metrocall Board of Directors that, as of such date and
subject to certain considerations identified to the Metrocall Board of
Directors, the Conversion Ratio pursuant to the Merger Agreement was fair from a
financial point of view to Metrocall. Morgan Stanley confirmed its oral opinion
in a written opinion dated August 8, 1997 (the "Morgan Stanley Opinion").
 
     A COPY OF THE MORGAN STANLEY OPINION WHICH SETS FORTH THE ASSUMPTIONS MADE,
MATTERS CONSIDERED AND LIMITS ON THE REVIEW UNDERTAKEN IS ATTACHED HERETO AS
EXHIBIT B. METROCALL STOCKHOLDERS ARE URGED TO, AND SHOULD, READ THE MORGAN
STANLEY OPINION CAREFULLY AND IN ITS ENTIRETY. REFERENCES TO THE MORGAN STANLEY
OPINION HEREIN AND THE SUMMARY OF THE MORGAN STANLEY OPINION SET FORTH BELOW ARE
QUALIFIED BY EXHIBIT B, WHICH IS INCORPORATED HEREIN BY REFERENCE. THE MORGAN
STANLEY OPINION IS DIRECTED TO THE METROCALL BOARD OF DIRECTORS AND THE FAIRNESS
OF THE CONVERSION RATIO PURSUANT TO THE MERGER AGREEMENT FROM A FINANCIAL POINT
OF VIEW TO METROCALL, AND IT DOES NOT ADDRESS ANY OTHER ASPECT OF THE MERGER NOR
DOES IT CONSTITUTE A RECOMMENDATION TO ANY METROCALL STOCKHOLDER AS TO HOW TO
VOTE AT THE METROCALL MEETING.
 
     In arriving at its opinion, Morgan Stanley, among other things: (i)
reviewed certain publicly available financial statements and other information
of Metrocall and ProNet, respectively; (ii) reviewed certain internal financial
statements and other financial and operating data concerning Metrocall and
ProNet prepared by the managements of Metrocall and ProNet, respectively; (iii)
analyzed certain financial projections concerning Metrocall and ProNet prepared
by the managements of Metrocall and ProNet, respectively; (iv) discussed the
past and current operations and financial condition and the prospects of
Metrocall and ProNet with the managements of Metrocall and ProNet, respectively;
(v) discussed with Metrocall and ProNet managements their views regarding the
estimates of the business, financial and operational benefits arising from the
Merger; (vi) analyzed the pro forma impact of the Merger on Metrocall's
consolidated capitalization and financial ratios; (vii) reviewed the reported
prices and trading activity of Metrocall Common Stock and ProNet Common Stock;
(viii) compared the financial performance of Metrocall and ProNet and the prices
and trading activity of the Metrocall Common Stock and ProNet Common Stock with
that of certain other comparable publicly-traded companies and their securities;
(ix) reviewed the financial terms, to the extent publicly available, of certain
comparable acquisition transactions; (x) participated in discussions and
negotiations among representatives of ProNet and Metrocall and their financial
and legal advisors; (xi) reviewed the Merger Agreement and certain related
documents; (xii) participated in discussions
 
                                       26
<PAGE>   38
 
with Metrocall's accountants regarding certain aspects of the accounting
practices and policies of ProNet; and (xiii) considered such other factors and
performed such other analyses as Morgan Stanley deemed appropriate.
 
     In connection with its review, Morgan Stanley assumed and relied upon
without independent verification the accuracy and completeness of the
information reviewed by it for purposes of the Morgan Stanley Opinion. With
respect to the financial projections, including estimates of the business,
financial and operating benefits expected to result from the Merger, Morgan
Stanley assumed that they had been reasonably prepared on bases reflecting the
best currently available estimates and judgments of the future competitive,
operating and regulatory environments and related financial performance of
Metrocall and ProNet, respectively. Furthermore, Morgan Stanley assumed no
responsibility for conducting a physical inspection of the properties or
facilities of Metrocall or ProNet or for making or obtaining any independent
valuation or appraisal of the assets or liabilities of Metrocall or ProNet, nor
was Morgan Stanley furnished with any such valuations or appraisals. Morgan
Stanley assumed, with the consent of the Metrocall Board, that the transaction
described in the Merger Agreement would be consummated on the terms set forth
therein without waiver of any condition thereof. Morgan Stanley noted that the
Merger is intended to qualify as a reorganization within the meaning of Section
368(a) of the Internal Revenue Code. Morgan Stanley's opinion is necessarily
based on economic, market and other conditions as in effect on, and any
information and agreements made available to it as of, the date thereof.
 
     In conjunction with the August 6, 1997 meeting of the Metrocall Board of
Directors, Morgan Stanley reviewed with the members of the Metrocall Board of
Directors certain analyses performed by Morgan Stanley in connection with the
Morgan Stanley Opinion. The summary set forth below does not purport to be a
complete description of the Morgan Stanley Opinion or Morgan Stanley's analysis
related thereto.
 
     Implied Transaction Valuation. Morgan Stanley reviewed the implied
transaction valuation. The total number of Metrocall Shares to be issued, based
on ProNet shares outstanding of approximately 13.674 million (pro forma for the
issuance of 1.0 million shares to settle outstanding shareholder lawsuits) was
approximately 12.3 million. The value of the shares to be issued, based on
Morgan Stanley's estimate of Metrocall's unaffected trading price of $5.375 as
of the close of trading on August 1, 1997 and the Conversion Ratio of 0.9, was
approximately $66 million. In addition, Metrocall will assume ProNet debt of
approximately $180 million. The pro forma ProNet stockholders' ownership of
Metrocall, based on Metrocall's shares outstanding after the Merger of
approximately 41.453 million, was 30%. Morgan Stanley noted that the implied
ProNet valuation was as follows: equity value, $66 million and asset value, $232
million.
 
     Precedent Transaction Analysis. Using publicly available information,
Morgan Stanley reviewed and analyzed selected acquisition transactions involving
other companies in the paging industry that it deemed relevant.
 
     No transaction utilized as a comparison in the precedent transaction
analysis is identical to the Merger in both timing and size. Accordingly, an
analysis of the results of the foregoing necessarily involves complex
considerations and judgments concerning differences in financial and operating
characteristics of ProNet and other factors that would affect the acquisition
value of the companies to which it is being compared. In evaluating precedent
transactions, Morgan Stanley made judgments and assumptions with regard to
industry performance, general business, economic, market and financial, and
other matters, many of which are beyond the control of ProNet, such as the
impact of competition on ProNet and the industry generally, industry growth and
the absence of any adverse material change in the financial conditions and
prospects of ProNet or the industry or in the financial markets in general.
Mathematical analysis (such as determining the average or median) is not itself
a meaningful method of using comparable transaction data.
 
     Premium to Unaffected Market Price. Morgan Stanley presented an analysis of
the acquisition premium paid in selected paging transactions in relation to the
unaffected market price of certain acquired public companies. The transactions
reviewed by Morgan Stanley included the following, which are listed by acquiror/
target: (i) Metrocall/ProNet, (ii) Metrocall/Page America; (iii) Arch/USA
Mobile; and (iv) Metrocall/ A+ Network. The Morgan Stanley analysis yielded the
following premiums to unaffected market price for
 
                                       27
<PAGE>   39
 
each of the above referenced transactions: Metrocall/ProNet, 3%; Metrocall/Page
America, 20%; Metrocall/ A+ Network, 36%; and Arch/USA Mobile, 19%.
 
     Contribution Analysis. Morgan Stanley presented an analysis of the relative
contribution of ProNet and Metrocall to the Surviving Corporation based on
certain statistics. Among the information considered in the analysis were run
rate EBITDA for the second quarter of 1997 and full year 1997 EBITDA estimates.
The relative EBITDA contributions of ProNet and Metrocall on a run rate EBITDA
for the second quarter of 1997 basis and a full year basis were used to derive
an implied exchange ratio. This analysis does not give effect to potential cost
savings and revenue enhancement opportunities from the merger. The range of
exchange ratios implied by EBITDA contribution is 0.80 to 0.95.
 
     ProNet Discounted Cash Flow Analysis. Morgan Stanley performed a five-year
discontinued cash flow analysis of ProNet based upon the internal projections of
the management of ProNet, as well as discussions with Metrocall and ProNet
management regarding the business of ProNet. In conducting the discounted cash
flow analysis, Morgan Stanley assumed discount rates of 12% to 13%, and year
2001 EBITDA multiples of 8.0x to 9.0x, with and without giving effect to
synergies. The assumed discount rates were chosen based upon an analysis of the
weighted average cost of capital of ProNet and certain comparable companies. The
range of exit multiples used reflected different assumptions regarding the
growth and profitability prospects of ProNet beyond the year 2001. Unleveraged
after-tax cash flows were calculated as the after-tax operating earnings of
ProNet plus projected depreciation and amortization, plus (or minus) net changes
in non-cash working capital, minus projected capital expenditures, Morgan
Stanley added to the present value of the cash flows the terminal value of
ProNet in 2001, discounted back at the same rates. Based on the aforementioned
projections and assumptions, the discounted cash flow analysis yielded a range
of midpoint per share values of approximately $4.70 to $7.00 per share of ProNet
Common Stock.
 
     ProNet Stock Trading Comparison. Morgan Stanley compared the historical
trading prices of the ProNet Common Stock to a composite of paging stocks
(consisting of Paging Network, Inc. ("PageNet"), Arch Communications Group, Inc.
("Arch"), PageMart, Inc. ("PageMart"), and Mobile Telecommunications
Technologies Corp. ("MTel")) and the study showed that for much of the period,
ProNet Common Stock traded at a discount to such composite. Another study showed
that the ProNet Common Stock had, for the most part, traded at a discount to
Metrocall Common Stock.
 
     Comparable Paging Company Trading Analysis. Morgan Stanley analyzed the
trading performance of ProNet, Metrocall and companies in the paging sector (the
"Comparable Public Companies"). The companies analyzed were: PageNet, Arch,
PageMart and MTel. The Comparable Public Companies were selected based on
general business, operating and financial characteristics representative of
companies in the paging industry. Historical financial information used in
connection with the ratios provided below with respect to the Comparable Public
Companies is as of the most recent financial statements publicly available for
each company. Market information used in calculating the financial ratios below
is as of August 1, 1997
 
     Morgan Stanley analyzed the relative performance and value for ProNet by
comparing certain market trading statistics for ProNet with the Comparable
Public Companies. Among the market trading information considered in the
analysis were aggregate value to run rate EBITDA and aggregate value to run rate
sales for the second quarter of 1997. The ratio of aggregate value to run rate
EBITDA for the second quarter of 1997 and aggregate value to run rate sales for
the Comparable Public Companies ranged from 7.1x to 8.5x and 1.8x to 3.0x,
respectively.
 
     Using the financial information provided by management of ProNet and
Metrocall, Morgan Stanley derived an implied aggregate value of Metrocall's
proposed acquisition of ProNet of 7.7x run rate 1997 EBITDA for the second
quarter of 1997 and 2.0x run rate 1997 sales for the second quarter of 1997,
respectively. In addition, Morgan Stanley noted that Metrocall traded at 8.4x
run rate EBITDA for the second quarter of 1997 and 2.3x run rate sales for the
second quarter of 1997.
 
     No company utilized in the Comparable Public Companies analysis as a
comparison is identical to ProNet or Metrocall. In evaluating the Comparable
Public Companies, Morgan Stanley made judgments and assumptions with regard to
industry performance, general business, economic, market and financial
conditions
 
                                       28
<PAGE>   40
 
and other matters, many of which are beyond the control of ProNet or Metrocall,
such as the impact of competition on the business of ProNet or Metrocall and the
industry generally, industry growth and the absence of any material adverse
change in the financial condition and prospects of ProNet, Metrocall, the
industry or financial markets in general. Mathematical analysis (such as
determining the average or median) is not, in the opinion of Morgan Stanley, in
itself a meaningful method of using comparable company data.
 
     The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to a partial analysis or summary description. In
arriving at its opinion, Morgan Stanley considered the results of all of its
analyses as a whole and did not attribute any particular weight to any
particular analysis or factor considered by it. Furthermore, Morgan Stanley
believes selecting any portion of Morgan Stanley's analyses, without considering
all analyses, would create an incomplete view of the process of underlying its
opinion. In addition, Morgan Stanley may have deemed various assumptions more or
less probable than other assumptions, so that the range of valuations resulting
for any particular analysis described above should not be taken to be Morgan
Stanley's view of the actual value of ProNet or Metrocall.
 
     In performing its analysis, Morgan Stanley made numerous assumptions with
respect to industry performance, general business and economic conditions and
other matters, many of which are beyond the control of ProNet or Metrocall. The
analyses performed by Morgan Stanley are not necessarily indicative of actual
values, which may be significantly more or less favorable than suggested by such
analyses. Such analyses were prepared solely as a part of Morgan Stanley's
analysis of the fairness of the Conversion Ratio pursuant to the Merger
Agreement from a financial point of view to Metrocall and was provided to the
Metrocall Board of Directors in connection with the delivery of the Morgan
Stanley Opinion. The analyses do not purport to be appraisals or to reflect the
prices at which ProNet or Metrocall might actually be sold. In addition, as
described above, Morgan Stanley's opinion and presentation to the Metrocall
Board of Directors was one of many factors taken into consideration by the
Metrocall Board of Directors in making its determination to approve the Merger.
Consequently, the Morgan Stanley analysis described above should not be viewed
as determinative of the opinions of the ProNet Board of Directors or the
Metrocall Board of Directors with respect to the value of ProNet and Metrocall
or whether such Boards would have been willing to agree to a different
consideration. The Conversion Ratio pursuant to the Merger Agreement was
determined through negotiations between Metrocall and ProNet and was approved by
the Metrocall Board of Directors.
 
     The Metrocall Board of Directors retained Morgan Stanley based upon its
experience and expertise. Morgan Stanley is an internationally recognized
investment banking and advisory firm. Morgan Stanley, as part of its investment
banking business, is continuously engaged in the valuation of businesses and
securities in connection with mergers and acquisitions, negotiated
underwritings, competitive biddings, secondary distribution of listed and
unlisted securities, private placements and valuations for corporate and other
purposes. Morgan Stanley is a full-service securities firm engaged in trading
and brokerage activities, as well as providing investment banking, financing and
financial advisory services. In the ordinary course of its trading and brokerage
activities, Morgan Stanley or its affiliates may at any time hold long or short
positions, and may trade or otherwise effect transactions, for its own account
or the accounts of customers, in securities or senior loans of ProNet or
Metrocall. In the past, Morgan Stanley and its affiliates have provided
financial advisory and financing services to Metrocall and have received fees
for the rendering of these services.
 
     Pursuant to a letter agreement dated as of June 16, 1997, Metrocall has
agreed to pay Morgan Stanley a fee of 1% of the aggregate value of the
transaction in consideration for its services upon consummation of the
transaction. In addition to the foregoing compensation, Metrocall has agreed to
reimburse Morgan Stanley for its expenses, including fees and expenses of its
counsel, and to indemnify Morgan Stanley for liabilities and expenses arising
out of the engagement and the transactions in connection therewith, including
liabilities and expenses arising out of the engagement and the transactions in
connection therewith, including liabilities under federal securities laws.
 
                                       29
<PAGE>   41
 
RECOMMENDATION OF THE BOARD OF DIRECTORS OF PRONET
 
     The Board of Directors of ProNet adopted the Merger Agreement and has
determined that the Merger is fair to, and in the best interests of, ProNet and
its stockholders. The Board of Directors of ProNet has recommended that the
stockholders of ProNet vote FOR the approval of the Merger Agreement.
 
PRONET'S REASONS FOR THE MERGER
 
     The ProNet Board believes that the terms of the Merger Agreement and the
transactions contemplated thereby are in the best interests of ProNet and its
stockholders. Accordingly, the ProNet Board has unanimously approved the Merger
Agreement and recommends approval of the Merger Agreement by the stockholders of
ProNet. In reaching its determination, the ProNet Board consulted with ProNet
management, as well as its legal counsel, and its financial advisor, Salomon
Brothers, and considered a number of factors including without limitation the
following:
 
          1. The knowledge of the ProNet Board of Directors of ProNet's
     business, operations, properties, assets, financial condition and results
     of operations.
 
          2. The ability of ProNet stockholders to benefit, through continued
     ownership of Metrocall Common Stock, from the enhanced prospects of the
     combined companies.
 
          3. The effect on stockholder value of ProNet continuing as a
     stand-alone entity compared to its combining with Metrocall, particularly
     (i) the belief of the ProNet Board of Directors that consolidation within
     the paging industry was continuing and that companies that did not
     participate in such consolidation would risk having to compete against
     larger and better capitalized companies and, therefore, would have
     difficulty executing their strategies and (ii) the effect that limitations
     on available capital would have on ProNet's long-term growth strategy,
     operations and financial performance and the belief that the combined
     company would have greater access to the capital markets, would be better
     able to pursue its long-term growth strategy and could better withstand
     competition in its markets.
 
          4. The results of the contacts and discussions between ProNet and
     various third parties, including that none of such contacts and discussions
     had resulted in a proposal regarding a strategic combination as attractive
     as the Merger (see "-- Background of the Merger") and the belief of the
     ProNet's executive officers that the Merger offered the best alternative
     available to ProNet and its stockholders.
 
          5. ProNet management's expectation that ProNet stockholders would
     benefit from the Surviving Corporation's ability to take advantage of
     various synergies to increase revenues and cash flow of the Surviving
     Corporation such as economies of scale with respect to personnel and
     facilities, management information systems and capital expenditures.
 
          6. The financial and other analyses presented by Salomon Brothers,
     including the opinion of Salomon Brothers delivered to the ProNet Board.
 
          7. That, based on recent historical stock prices for ProNet Common
     Stock and Metrocall Common Stock, the per share consideration to be
     received by the ProNet stockholders represented a premium over recent
     prices for ProNet Common Stock.
 
          8. The financial and other terms of the Merger Agreement, including
     that the Merger would generally be tax-free to the ProNet stockholders (see
     "-- Certain Federal Income Tax Consequences"), the ability of ProNet to
     terminate the Merger Agreement in connection with a superior Acquisition
     Proposal and the limitation on the potential economic return to Metrocall
     pursuant to the Option Agreement.
 
          9. Three current members of the ProNet Board of Directors would become
     members of the Metrocall Board of Directors to participate in the strategy
     and direction of the Surviving Corporation.
 
     ProNet's Board of Directors also considered (i) the risk that the benefits
sought in the Merger would not be obtained, (ii) the risk that the Merger would
not be consummated, (iii) the effect of the public announcement of the Merger on
ProNet's customer relations, operating results and ability to retain employees,
 
                                       30
<PAGE>   42
 
and trading price of ProNet Common Stock, (iv) the potentially substantial
management time and effort that will be required to consummate the Merger and
integrate the operations of the two companies, (v) the impact of the Merger on
ProNet's personnel, and (vi) other risks described herein under "RISK FACTORS".
In the judgment of the ProNet Board of Directors, the potential benefits of the
Merger substantially outweighed the risks inherent in the Merger.
 
     The foregoing discussion of the information and factors considered by the
ProNet Board of Directors is not intended to be exhaustive but includes the
material factors discussed by the ProNet Board of Directors. In reaching its
determination to approve and recommend the Merger, the ProNet Board of Directors
did not assign any relative or specific weights to the foregoing factors and
individual directors may have given differing weights to different factors. The
ProNet Board of Directors is, however, unanimous in its recommendation that
ProNet stockholders approve the Merger Agreement.
 
     THE PRONET BOARD OF DIRECTORS RECOMMENDS THAT PRONET STOCKHOLDERS VOTE TO
APPROVE THE MERGER AGREEMENT.
 
OPINION OF FINANCIAL ADVISOR TO PRONET
 
     ProNet retained Salomon Brothers to act as its financial advisor in
connection with the Merger. On August 5, 1997, Salomon Brothers rendered its
opinion to the ProNet Board of Directors to the effect that, based upon and
subject to certain assumptions, factors and limitations set forth in such
written opinion as described below, as of such date, the consideration to be
received by the holders of ProNet Common Stock in the Merger is fair, from a
financial point of view, to such holders.
 
     THE FULL TEXT OF SALOMON BROTHERS' OPINION DATED AUGUST 5, 1997, WHICH SETS
FORTH THE ASSUMPTIONS MADE, PROCEDURES FOLLOWED AND MATTERS CONSIDERED BY
SALOMON BROTHERS, IS ATTACHED AS EXHIBIT C TO THIS JOINT PROXY
STATEMENT/PROSPECTUS AND IS INCORPORATED HEREIN BY REFERENCE. SALOMON BROTHERS'
OPINION DELIVERED TO THE PRONET BOARD OF DIRECTORS WAS DIRECTED ONLY TO THE
FAIRNESS, FROM A FINANCIAL POINT OF VIEW, OF THE CONSIDERATION TO BE RECEIVED IN
THE MERGER BY THE HOLDERS OF PRONET COMMON STOCK, AND DOES NOT CONSTITUTE A
RECOMMENDATION TO ANY PRONET STOCKHOLDER AS TO HOW SUCH STOCKHOLDER SHOULD VOTE
AT THE PRONET MEETING. THE SUMMARY OF THE SALOMON BROTHERS OPINION SET FORTH IN
THIS JOINT PROXY STATEMENT/ PROSPECTUS IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO THE FULL TEXT OF SUCH OPINION. PRONET STOCKHOLDERS ARE URGED TO READ THE
ENTIRE OPINION CAREFULLY.
 
     In connection with rendering its opinion, Salomon Brothers reviewed and
analyzed, among other things: (i) the Merger Agreement and the exhibits thereto
(including the Option Agreement); (ii) certain publicly available information
concerning ProNet; (iii) certain other internal information, primarily financial
in nature, including projections, concerning the business and operations of
ProNet; (iv) certain publicly available information concerning the trading of,
and the trading market for, the ProNet Common Stock; (v) certain publicly
available information concerning Metrocall; (vi) certain other internal
information, primarily financial in nature, including projections, concerning
the business and operations of Metrocall; (vii) certain publicly available
information concerning the trading of, and the trading market for, the Metrocall
Common Stock; (viii) certain publicly available information with respect to
certain other companies that Salomon Brothers believed to be comparable to
ProNet or Metrocall and the trading markets for certain of such other companies'
securities; and (ix) certain publicly available information concerning the
nature and terms of certain other transactions that Salomon Brothers considered
relevant to its inquiry. Salomon Brothers also conducted discussions with
certain officers and employees of Metrocall and ProNet and with the independent
accountants of Metrocall to discuss the foregoing as well as other matters that
Salomon Brothers believed relevant to its inquiry.
 
     In its review and analysis and in arriving at its opinion, Salomon Brothers
assumed and relied upon the accuracy and completeness of all of the financial
and other information provided to it by Metrocall and ProNet or publicly
available and neither attempted independently to verify nor assumed
responsibility for verifying any of such information. Salomon Brothers did not
conduct any physical inspection of any of the properties or facilities of
Metrocall or ProNet, nor did it make or obtain or assume any responsibility for
making or obtaining any independent evaluations or appraisals of any of such
properties or facilities. With respect to the
 
                                       31
<PAGE>   43
 
financial projections of Metrocall and ProNet, Salomon Brothers assumed that
they were consistent with the best currently available estimates and judgments
of the management of Metrocall and ProNet, respectively, and Salomon Brothers
expressed no view with respect to such financial projections.
 
     In conducting its analysis and in arriving at its opinion, Salomon Brothers
considered such financial and other factors as it deemed appropriate under the
circumstances including, among others, the following: (i) the historical and
current financial position and results of operations of Metrocall and ProNet;
(ii) the business prospects of Metrocall and ProNet; (iii) the historical and
current market for Metrocall Common Stock, for ProNet Common Stock and for the
equity securities of certain other companies that Salomon Brothers believed to
be comparable to Metrocall or ProNet; and (iv) the nature and terms of certain
other transactions that Salomon Brothers believed to be relevant. Salomon
Brothers also took into account its assessment of general economic, market and
financial conditions and its knowledge of the paging industry as well as its
experience in connection with similar transactions and securities valuation
generally.
 
     Salomon Brothers' opinion was necessarily based upon conditions as they
existed and could be evaluated on the date of its opinion and it assumed no
responsibility to update or revise its opinion based upon circumstances or
events occurring after the date of its opinion. Salomon Brothers' opinion was
limited to the fairness, from a financial point of view, of the consideration to
be received by the holders of ProNet Common Stock in the Merger and did not
address ProNet's underlying business decision to effect the Merger or constitute
a recommendation to any holder of ProNet Common Stock as to how such holder
should vote with respect to the Merger. Set forth below is a brief summary of
the material financial analyses which Salomon Brothers provided to the ProNet
Board of Directors at its August 5, 1997 meeting in connection with its opinion
and does not purport to be a complete description of analyses performed by
Salomon Brothers. As described above, Salomon Brothers' opinion and presentation
to the ProNet Board of Directors were among many factors taken into
consideration by the ProNet Board of Directors in making its decision to approve
the Merger Agreement. The following quantitative information, to the extent it
is based on market data, is based on such data as it existed at August 1, 1997,
and is not necessarily indicative of current market conditions.
 
SUMMARY OF ANALYSIS
 
     Historical Conversion Ratio Analysis.  Salomon Brothers also reviewed the
average daily closing price of Metrocall Common Stock and ProNet Common Stock
during the one, three and six month periods ending on June 20, 1997 (the trading
day immediately preceding the date of the first formal meeting between ProNet
and Metrocall and their respective financial advisors at which the proposed
Merger was discussed) and August 1, 1997 and the implied historical exchange
ratios obtained by dividing the average price per share of ProNet Common Stock
by the average price per share of Metrocall Common Stock (the "Historical
Conversion Ratio") for each such period. Salomon Brothers calculated that the
Historical Conversion Ratio ranged from a high of 0.81 to a low of 0.75 for the
periods ended June 20, 1997, and ranged from a high of 0.87 to a low of 0.79 for
the periods ended August 1, 1997. The Conversion Ratio is 0.90.
 
     Contribution Analysis.  Salomon Brothers calculated the relative
contribution by ProNet to the pro forma combined company resulting from the
Merger with respect to various financial statistics, including earnings before
interest, taxes, depreciation and amortization ("EBITDA") (based upon
projections provided by ProNet and Metrocall, as well as investment banking
analysts), market capitalization and firm value (defined as equity value plus
debt and certain other liabilities, and less cash). This analysis showed that,
not taking into account synergies and efficiencies potentially realizable from
the transaction, ProNet would contribute between 29.8% and 30.4% of estimated
1997 EBITDA (depending upon the particular estimates used for purposes of the
analysis), between 24.4% and 29.8% of estimated 1998 EBITDA, 29.0% of market
capitalization (based on closing share prices at August 1, 1997) and 29.6% of
firm value. By comparison, based on the Conversion Ratio, ProNet stockholders
would hold 29.7% of the pro forma equity (not including shares issuable upon
exercise of stock options). Salomon Brothers also noted that the managements of
ProNet and Metrocall expected to realize substantial synergies from the Merger
and that, as Metrocall stockholders, ProNet stockholders would receive a portion
of such benefits.
 
                                       32
<PAGE>   44
 
     Premium Analysis.  Salomon Brothers noted that at assumed trading prices
for the Metrocall Common Stock of $5.00, $5.38 (the closing price on August 1,
1997) and $6.00, the Conversion Ratio would represent a premium (discount) to
(i) the closing price of the ProNet Common Stock at June 20, 1997 of 14.3%,
22.9% and 37.1%, respectively, (ii) the closing price of the ProNet Common Stock
at August 1, 1997 of (4.0%), 3.2% and 15.2%, respectively, (iii) the high
closing price for the 52 weeks ended June 20, 1997 of (64.7%), (62.1%) and
(57.6%), (iv) the high closing price for the 52 weeks ended August 1, 1997 of
(49.7%), (45.9%) and (39.6%), and (v) the low closing price for the 52 weeks
ended June 20, 1997 and August 1, 1997 of 80.0%, 93.5% and 116.0%.
 
     Public Comparables Trading Analysis.  Salomon Brothers compared selected
financial data of Metrocall with certain financial data from publicly traded
paging network companies considered by Salomon Brothers to be comparable to
ProNet and Metrocall, specifically American Paging, Arch and PageNet
(collectively, the "Comparable Companies"). Among other things, Salomon Brothers
computed, as of August 1, 1997, the multiples of (i) latest twelve months
("LTM") EBITDA, (ii) latest quarterly annualized EBITDA, (iii) 1997 estimated
EBITDA (based on investment banking analyst estimates) and (iv) 1998 estimated
EBITDA (based on investment banking analyst estimates) represented by the firm
value of ProNet and Metrocall, and compared them to the corresponding multiples
represented by the firm values of the Comparable Companies. Based on this
analysis, Salomon Brothers established for the Comparable Companies (i) a range
of multiples of firm value to LTM EBITDA of 9.0 to 9.6 with a median of 9.3,
(ii) a range of multiples of firm value to latest quarterly annualized EBITDA of
8.8 to 9.7 with a median of 9.2, (iii) a range of multiples of firm value to
1997 estimated EBITDA of 8.2 to 8.9 with a median of 8.4, and (iv) a range of
multiples of firm value to 1998 estimated EBITDA of 6.4 to 7.4 with a median of
6.8. For ProNet and Metrocall, Salomon Brothers determined that (i) the
multiples of firm value to LTM EBITDA were 8.8 and 9.4, respectively, (ii) the
multiples of firm value to latest quarterly annualized EBITDA were 8.1 and 8.7,
respectively, (iii) the multiples of firm value to 1997 estimated EBITDA were
7.9 and 8.5, respectively, and (iv) the multiples of firm value to 1998
estimated EBITDA were 6.5 and 7.1, respectively. On the basis of this analysis,
Salomon Brothers derived a range of per share reference values for the ProNet
Common Stock and the Metrocall Common Stock, which was used to obtain a range of
reference values for the Conversion Ratio of 0.83 to 0.85 (based on data as of
August 1, 1997) and 0.82 to 0.85 (based on data as of June 20, 1997). Salomon
Brothers believed that the Conversion Ratio of 0.90 was consistent with the
reference ranges obtained through its analysis.
 
     Precedent Transactions Analysis.  Salomon Brothers reviewed for
informational purposes four selected merger and acquisition transactions in 1995
and 1996 involving paging network companies with more than 500,000 subscribers
(the "Larger Precedent Transactions"), as well as 23 selected merger and
acquisition transactions involving smaller concerns (the "Smaller Precedent
Transactions"). For the Larger Precedent Transactions, among which the Merger
would have been classified, the multiple of the firm value reflected by the
transaction price to EBITDA ranged from 10.0 to 13.4. For the Smaller Precedent
Transactions, the multiples of the transaction price to EBITDA ranged from 6.0
to 28.5. Salomon Brothers noted, however, that this analysis would not likely
provide meaningful information because, in general, all of the precedent
transactions occurred prior to the difficulties recently experienced in the
paging network industry.
 
     Discounted Cash Flow Analysis.  Salomon Brothers also conducted a
discounted cash flow analysis of ProNet and Metrocall using estimates of future
cash flows of the companies. Salomon Brothers used discount rates ranging from
15% to 17% and terminal value EBITDA multiples of 7.0 to 8.0, which in each case
were determined by Salomon Brothers using its experience and judgment. In one
case, Salomon Brothers used projections for ProNet provided by ProNet's
management and projections for Metrocall provided by Metrocall's management to
derive a range of per share reference values for the ProNet Common Stock and the
Metrocall Common Stock. The reference values for the Conversion Ratio determined
on the basis of the resulting range of per share values for the ProNet Common
Stock and the Metrocall Common Stock ranged from 1.00 to 1.13. In a second case,
Salomon Brothers performed the analysis using projections for ProNet and
Metrocall provided only by Metrocall's management. On the basis of this
analysis, Salomon Brothers obtained a range of reference values for the
Conversion Ratio of 0.72 to 0.77. Salomon Brothers believed that the Conversion
Ratio of 0.90 was consistent with the reference ranges obtained through its
analysis.
 
                                       33
<PAGE>   45
 
     General.  The preparation of a fairness opinion involves various
determinations as to the most appropriate and relevant methods of financial
analysis and the application of those methods to the particular circumstances
and, therefore, such an opinion is not readily susceptible to summary
description. Furthermore, in arriving at its fairness opinion, Salomon Brothers
did not attribute any particular weight to any analysis or factor considered by
it, but rather made qualitative judgments as to the significance and relevance
of each analysis and factor. Accordingly, Salomon Brothers believes that its
analyses must be considered as a whole and that considering any portions of such
analyses and of the factors considered, without considering all analyses and
factors, could create a misleading or incomplete view of the process underlying
the opinion. Salomon Brothers did not quantify the effect of each factor upon
their valuation. In its analyses Salomon Brothers made numerous assumptions with
respect to industry performance, general business and economic conditions and
other matters, some of which are beyond the control of Metrocall and ProNet. Any
estimates contained in Salomon Brothers' analysis are not necessarily indicative
of actual values or predictive of future results or values, which may be
significantly more or less favorable than as set forth therein. No company or
transaction used in the above analyses as a comparison is directly comparable to
Metrocall or ProNet or the Merger. The analyses performed were prepared solely
as part of Salomon Brothers' analysis of the fairness of the consideration to be
received in the Merger by the holders of ProNet Common Stock in connection with
the delivery by Salomon Brothers' opinion. Because such analyses are inherently
subject to uncertainty, none of ProNet, the ProNet Board of Directors or
management, Salomon Brothers or any other person assumes responsibility if
future events do not conform to judgments reflected in the opinion of Salomon
Brothers.
 
     Engagement of Salomon Brothers.  Salomon Brothers was retained by ProNet
based on its experience and expertise as financial advisor in connection with
mergers and acquisitions. Salomon Brothers is an internationally recognized
investment banking firm that provides financial services in connection with a
wide range of business transactions. As part of its business, Salomon Brothers
regularly engages in the valuation of companies and their securities in
connection with mergers and acquisitions, negotiated underwritings, competitive
biddings, secondary distributions of listed and unlisted securities, private
placements and for other purposes.
 
     ProNet has agreed to pay Salomon Brothers a fee of $250,000 upon the
rendering of its fairness opinion and the execution of the Merger Agreement.
ProNet also agreed to pay Salomon Brothers an additional fee in an amount equal
to 0.75% of the Aggregate Consideration (as defined) in connection with the
Merger, such fee being payable upon consummation of the Merger. ProNet has also
agreed to reimburse Salomon Brothers for its reasonable out-of-pocket expenses
and to indemnify Salomon Brothers and certain related persons against certain
liabilities, including liabilities under the federal securities laws.
 
INTERESTS OF CERTAIN PERSONS IN THE MERGER
 
     Certain members of the Board of Directors of ProNet and senior management
of ProNet have interests in the transactions contemplated under the Merger
Agreement that present certain potential conflicts of interest. The Board of
Directors of each of Metrocall and ProNet was aware of these potential conflicts
at the time of its consideration of the Merger. A summary of these potential
conflicts of interest and certain agreements between Metrocall and certain
members of ProNet's Board of Directors and senior management is provided below.
 
     Metrocall Board Seats.  Pursuant to the Merger Agreement, at the Effective
Time, Metrocall will increase the size of its board from 11 to 14 directors. The
three vacancies will be filled by existing ProNet directors.
 
     Non-Competition Agreements.  Pursuant to Noncompetition Agreements, each of
Jackie R. Kimzey and David J. Vucina has agreed, in exchange for payments
totaling, in aggregate, $421,800 and $317,400, respectively, over a three-year
period following the Effective Time, to refrain from competing in the business
of narrowband one-way or two-way paging services, soliciting employees of the
Surviving Corporation, interfering with any customer, supplier or other business
relationship of the Surviving Corporation, or disclosing confidential
information about ProNet. The obligation not to compete will continue for three
years from the Effective Time, and the nondisclosure obligation will continue
indefinitely. Pursuant to the
 
                                       34
<PAGE>   46
 
Noncompetition Agreements, Messrs. Kimzey and Vucina have agreed to resign
voluntarily under their employment agreements with ProNet, effective as of the
Effective Time.
 
     Existing Employment Arrangements.  Metrocall has agreed to pay each of
Jackie R. Kimzey and David J. Vucina $800,000 and $700,000, respectively, in
full satisfaction of ProNet's obligations under the "Change of Control"
provisions of their Employment Agreements dated May 18, 1994. In addition,
Metrocall has agreed to pay each of Jan E. Gaulding, Mark A. Solls and Jeffery
A. Owens $228,988, $227,588, and $201,043, respectively, in full satisfaction of
ProNet's obligations under each of their Change of Control Agreements. Ms.
Gaulding's and Mr. Owens' Change of Control Agreements were each entered into
effective as of May 18, 1994. Mr. Solls' Change of Control Agreement was entered
into effective January 17, 1995. Ms. Gaulding and Messrs. Solls and Owens have
each agreed to resign voluntarily as of the Effective Time.
 
     ProNet Options.  Each outstanding option (a "ProNet Option") to purchase
ProNet Common Stock granted pursuant to ProNet's 1987 Stock Option Plan, 1995
Long-Term Incentive Plan and Non-employee Director Stock Option Plan
(collectively, the "ProNet Option Plans") that has not vested prior to the
Effective Time will become fully exercisable and vested as of the Effective
Time. ProNet has agreed to use its reasonable best efforts to cause each
optionee to agree to the replacement of those options, effective as of the
Effective Time, with options under Metrocall's 1996 Stock Option Plan to
purchase such number of Metrocall Shares equal to the number of ProNet Shares
subject to such ProNet Option immediately prior to the Effective Time multiplied
by the Conversion Ratio, with the exercise price equal to the exercise price for
such ProNet Option immediately prior to the Effective Time divided by the
Conversion Ratio. All ProNet Options held by ProNet directors, by employees
whose employment is involuntarily terminated without cause within six months
after the Closing Date, or by certain other employees as agreed by Metrocall,
will be exercisable until the earlier of (i) the fourth anniversary of the
Closing Date and (ii) the date on which such ProNet Options would otherwise have
expired if such person had remained a director or employee of ProNet. Currently
exercisable options may be exercised and the ProNet Shares received thereby may
be exchanged in the Merger.
 
     The following table sets forth, as of September 15, 1997 with respect to
the directors and executive officers of ProNet, (i) the number of shares of
Metrocall Common Stock subject to ProNet Options converted automatically into
options to purchase Metrocall Common Stock that are held by such director or
officer and,
 
                                       35
<PAGE>   47
 
assuming a Conversion Ratio of 0.90 of a share of Metrocall Common Stock per
share of ProNet Common Stock, (ii) the average exercise price per share of
Metrocall Common Stock:
 
<TABLE>
<CAPTION>
                                                     SHARES OF METROCALL COMMON STOCK       EXERCISE PRICE
                      NAME                         SUBJECT TO METROCALL ASSUMED OPTIONS       PER SHARE
- ------------------------------------------------   ------------------------------------    ----------------
<S>                                                <C>                                     <C>
Harvey B. Cash..................................                   18,000                      $   6.67
                                                                    2,250                          6.25
Jan E. Gaulding.................................                  122,400                          6.67
                                                                    9,000                          6.39
                                                                    4,792                          3.06
Max Hopper......................................                    9,000                          3.33
Edward E. Jungerman.............................                   18,000                          6.67
                                                                    2,250                          6.25
Jackie R. Kimzey................................                  175,500                          6.67
                                                                   45,000                          6.39
Joseph Y. Lacik.................................                   18,000                          5.97
Tim Moore.......................................                   18,000                          3.89
                                                                   12,523                          4.72
George Platt....................................                    9,000                          3.33
Jeffery A. Owens................................                  102,150                          6.67
                                                                    5,400                          6.39
                                                                    9,000                          5.97
                                                                   18,000                          3.06
Mark A. Solls...................................                   49,500                          6.67
David J. Vucina.................................                  180,900                          6.67
                                                                   36,000                          6.39
                                                                    2,250                          5.97
</TABLE>
 
     Directors' and Officers' Insurance and Indemnification.  Metrocall has
agreed to indemnify ProNet's directors, officers, employees and agents against
all claims based on such persons' positions with ProNet or the Merger Agreement
or any of the transactions contemplated thereby. In addition, Metrocall has
agreed to use its reasonable best efforts to maintain ProNet's existing
directors' and officers' liability insurance policy for at least six years after
the Effective Time.
 
     Management Incentive Plan. The Merger Agreement permits incentive payments
to management of ProNet in the event that operating cash flow for the fourth
quarter 1997 exceeds $8 million. Subject to satisfaction of certain criteria,
such incentive payments will equal 25% of operating cash flow in excess of $8
million.
 
OPTION AGREEMENT
 
     Pursuant to the Option Agreement, ProNet has granted Metrocall an
irrevocable option to purchase up to 2,450,000 shares of ProNet Common Stock
(equal to approximately 19.4% of the issued and outstanding ProNet Common Stock)
at a price of $5.40 per share (the "Option") subject to certain conditions and
limitations described below. Metrocall may exercise the Option only upon the
occurrence of one of the following "Trigger Events": (i) ProNet's termination of
the Merger Agreement as a result of ProNet's Board of Directors acceptance of an
Acquisition Proposal; (ii) Metrocall's termination of the Merger Agreement
because ProNet's Board of Directors has accepted an Acquisition Proposal or
withdrawn its recommendation of the Merger; or (iii) ProNet's acceptance of an
Acquisition Proposal within six months after the stockholders of ProNet
disapprove the Merger. Metrocall may exercise the option for cash or through a
cashless exercise. The Option will terminate upon the earliest to occur of
consummation of the Merger, termination of the Merger Agreement in circumstances
other than upon a Trigger Event, or one year after
 
                                       36
<PAGE>   48
 
occurrence of a Trigger Event, subject to extension in certain circumstances but
in no event later than two years after a Trigger Event.
 
     The Option may not be exercised for a number of shares of ProNet Common
Stock that would, as of the date of exercise, result in Metrocall's receiving a
Notional Total Return (as defined) of more than 9.9% of the Total Equity Value
(as defined) of ProNet as of such date. For purposes of the Option Agreement,
"Notional Total Return" means the sum of (i) the $4 million termination fee
payable by ProNet to Metrocall under the terms of the Merger Agreement; plus
(ii) the net cash that Metrocall would receive if it had sold the shares for
which the Option is exercised at the "Current Equity Value" (as defined) of the
ProNet Common Stock on the exercise date minus the exercise price for such
shares. The "Total Equity Value" of ProNet means (i) the Current Equity Value
times the number of issued and outstanding shares of ProNet Common Stock plus
the number of shares of ProNet Common Stock that ProNet has agreed to issue;
plus (ii) the Current Equity Value times any additional shares of ProNet Common
Stock that are issuable pursuant to any rights to acquire ProNet Common Stock,
minus the exercise price for such rights; plus (iii) the fair value of any other
equity securities issued by ProNet or its subsidiaries; plus (iv) the amount of
ProNet's liabilities in excess of certain targets specified in the Merger
Agreement. The "Current Equity Value" means the greater of the current market
price of ProNet Common Stock or the consideration per share offered in any
pending Acquisition Proposal for ProNet.
 
     Metrocall has agreed in the Option Agreement that, during the period
beginning on August 8 and ending on the earlier of August 8, 1998 and
consummation of an Acquisition Proposal, (i) Metrocall will not (a) solicit
proxies with respect to the ProNet Common Stock or be a "participant" in an
"election contest" or "solicitation" (as such terms are used in Regulation 14A
under the Exchange Act) with respect to ProNet Common Stock, (b) form, join or
in any way participate in a Group (within the meaning of Section 13(d)(3) of the
Exchange Act) with respect to any shares of ProNet Common Stock, (c) in any
manner acquire, agree to acquire or make any proposal to acquire, any securities
of, equity interest in, or any material property of, ProNet or any of ProNet's
subsidiaries (other than pursuant to the Option Agreement or the Merger
Agreement) provided that Metrocall is not prohibited from offering to buy shares
of ProNet Common Stock in the event that a third party submits an Acquisition
Proposal that is not approved or endorsed by ProNet's Board of Directors, and
such party thereafter commences a tender offer or share exchange offer that
constitutes an Acquisition Proposal, (d) seek to control the management, Board
of Directors or policies of ProNet, or (e) advise, assist or encourage any other
person in connection with the foregoing; and (ii) any shares of ProNet Common
Stock acquired pursuant to the Option will be voted pro rata with the ProNet
Common Stock voted by all other stockholders of ProNet (excluding Metrocall and
its affiliates) with respect to all matters presented to the stockholders of
ProNet for approval. During this time period, Metrocall may tender or exchange
shares subject to the Option in an Acquisition Proposal.
 
STOCKHOLDERS VOTING AGREEMENT
 
     Contemporaneously with the execution of the Merger Agreement, ProNet
entered into a Stockholders Agreement with Ronald V. Aprahamian; Harry L. Brock,
Jr.; Suzanne S. Brock; William L. Collins, III; Francis A. Martin, III; Ray
Russenberger; Elliot H. Singer; UBS Capital LLC; Wilmington Securities, Inc.;
and certain trusts for the benefit of members of the family of Harry L. Hillman
and Elsie Hilliard Hillman (the "Principal Stockholders"). The shares subject to
the Stockholders Agreement aggregate 9,405,969 shares (the "Total Shares"),
representing approximately 32% of the outstanding shares of Metrocall Common
Stock on the date of the Merger Agreement.
 
     Pursuant to the Stockholders Agreement, each Principal Stockholder agrees
during the term of the Stockholders Agreement to vote all shares of Metrocall
Common Stock owned by them in favor of (i) approval of the Merger pursuant to
the Merger Agreement and (ii) the Charter Amendment. Pursuant to the
Stockholders Agreement, each Principal Stockholder has granted ProNet an
irrevocable proxy to vote each Principal Stockholder's shares in accordance with
the obligations of each Principal Stockholder under the Stockholders Agreement.
 
                                       37
<PAGE>   49
 
     The Stockholders Agreement restricts the Principal Stockholders' ability to
transfer or encumber the shares of Metrocall Common Stock subject to the
Stockholders Agreement, subject to exceptions for a portion of the shares owned
by certain Principal Stockholders.
 
     The Stockholders Agreement will terminate on the earliest of (i) the
consummation of the Merger, (ii) the agreement of the parties to the
Stockholders Agreement to terminate the Stockholders Agreement, (iii)
termination of the Merger Agreement pursuant to its terms, and (iv) March 31,
1998.
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
     The following discussion summarizes certain Federal income tax consequences
of the Merger to holders of ProNet Common Stock, ProNet and Metrocall. The
discussion does not address all aspects of Federal income taxation that may be
relevant to particular ProNet stockholders and may not be applicable to
stockholders who are not citizens or residents of the United States. This
discussion may not apply to certain classes of taxpayers, including, without
limitation, insurance companies, tax-exempt organizations, financial
institutions, dealers in securities, persons who will acquire their Metrocall
Common Stock pursuant to the exercise or termination of employee stock options
or otherwise as compensation, or persons who will hold their Metrocall Common
Stock in a hedging transaction or as part of a straddle or conversion
transaction. Also, the discussion does not address the effect of any applicable
foreign, state, local or other tax laws. This discussion assumes that ProNet
stockholders hold their ProNet Common Stock as capital assets within the meaning
of Section 1221 of the Code. EACH PRONET STOCKHOLDER SHOULD CONSULT HIS OR HER
OWN TAX ADVISOR AS TO THE PARTICULAR TAX CONSEQUENCES TO HIM OR HER OF THE
MERGER, INCLUDING THE APPLICABILITY AND EFFECT OF FOREIGN, STATE, LOCAL AND
OTHER TAX LAWS.
 
     The Merger Agreement provides that it is the intention of the parties that
the Merger will qualify as a tax-free reorganization under Section 368(a) of the
Code. As a condition to the consummation of the Merger, the Merger Agreement
provides that each of Metrocall and ProNet will receive an opinion of its
respective counsel to the effect that the Merger will be treated as a tax-free
reorganization under Section 368(a) of the Code. However, no Internal Revenue
Service ("IRS") ruling is being obtained concerning the tax effects of the
Merger. Except where otherwise indicated, the following summary assumes that the
Merger will qualify as a tax-free reorganization.
 
     If the Merger is a tax-free reorganization, no gain or loss will be
recognized by Metrocall or ProNet, and no gain or loss will be recognized by a
ProNet stockholder upon the exchange of shares of ProNet Common Stock for shares
of Metrocall Common Stock, except that a ProNet stockholder who receives cash
proceeds in lieu of a fractional share interest in Metrocall Common Stock will
recognize gain or loss equal to the difference between the cash received and the
tax basis allocated to the fractional share interest.
 
     The receipt of cash in lieu of a fractional share of Metrocall Common Stock
in the Merger will be treated as if the fractional share had been distributed to
such holder and then redeemed by the Surviving Corporation in exchange for the
cash distributed in lieu of the fractional share.
 
     A stockholder's basis in the Metrocall Common Stock received in the Merger
will be equal to the stockholder's basis in the shares of ProNet Common Stock
exchanged in the Merger, reduced by any tax basis allocable to a fractional
share interest for which cash is received.
 
     A stockholder's holding period for the Metrocall Common Stock received in
the Merger will include the period during which the shares of ProNet Common
Stock exchanged therefor were held.
 
     Except in the case of a stockholder who owns more than a minimal interest
in Metrocall after the Merger, the gain or loss from receipt of cash in lieu of
a fractional share of Metrocall Common Stock will be capital gain or loss. For
certain noncorporate taxpayers (including individuals), the rate of taxation of
capital gains will depend upon (i) the taxpayer's holding period in the capital
asset (with the preferential rates available for capital assets held more than
12 months or 18 months) and (ii) the taxpayer's marginal tax rate for ordinary
income. Taxpayers should consult their tax advisors with respect to applicable
rates and holding periods, and netting rules for offsetting capital losses
against capital gains. If a stockholder holds more than a minimal
 
                                       38
<PAGE>   50
 
interest in Metrocall after the Merger, the receipt of cash in lieu of a
fractional share of Metrocall Common Stock may be dividend income or proceeds
from the sale of a capital asset depending on the applicability of Code Section
302. Stockholders are urged to consult their tax advisors to determine whether
they should be considered as holding a minimal interest for this purpose and, if
not, the proper characterization of cash received in the Merger.
 
  Consequences if No Tax-Free Reorganization
 
     Metrocall and ProNet will receive opinions from their respective legal
counsel regarding the tax treatment of the Merger. However, Metrocall and ProNet
do not intend to seek a ruling from the IRS concerning the Federal income tax
consequences of the Merger. No assurance can be given that the IRS will not
challenge the qualification of the Merger as a tax-free reorganization. If such
a challenge were sustained by a court, each stockholder at the time of the
Merger would recognize capital gain or loss measured by the difference between
the fair market value of all the consideration received in the Merger and the
stockholder's basis in the ProNet Shares exchanged in the Merger. Each
stockholder's holding period in any share of Metrocall Common Stock received in
the Merger would begin on the date of the Merger. The basis of the Metrocall
Common Stock received in the Merger would be the fair market value on the date
of the Merger.
 
ACCOUNTING TREATMENT
 
     The Merger will be accounted for by Metrocall under the purchase method of
accounting in accordance with Accounting Principles Board Opinion No. 16,
"Business Combinations," as amended. Under this method of accounting, the
purchase price will be allocated to assets acquired and liabilities assumed
based on their estimated fair values at the Effective Time. Income of the
Surviving Corporation will not include income (or loss) of ProNet prior to the
Effective Time of the Merger.
 
GOVERNMENT AND REGULATORY APPROVALS
 
     Antitrust.  Under the HSR Act and the rules promulgated thereunder by the
FTC, the Merger may not be consummated unless certain information has been
furnished to the FTC and the Antitrust Division and certain waiting period
requirements have been satisfied. ProNet and Metrocall each filed on September
9, 1997 and September 8, 1997 (as supplemented on September 9, 1997),
respectively, with the Antitrust Division and the FTC a Premerger Notification
and Report Form, in connection with the Merger. Unless the parties receive a
request for additional information, the waiting period for the Merger will
terminate, on October 9, 1997.
 
     FCC Approval.  The construction, modification, operation, ownership and
acquisition of paging systems are subject to regulation by the FCC under the
Communications Act. The FCC has promulgated rules and regulations governing,
among other things, applications to construct and operate paging systems within
specified geographic areas, applications to transfer control of or assign paging
licenses, and technical and operational standards for the operation of paging
systems (such as construction deadlines, maximum power and antenna height, and
coordination with adjacent co-channel users). The present regulatory structure
governing paging companies is subject to revision in light of changes to the
Communications Act, FCC rule changes, and pending FCC proposals that, if
adopted, may increase competition for subscribers to wireless communication
services, increase competition for access to certain underlying services and
facilities (such as telephone numbers) necessary for ProNet and Metrocall to
conduct their business, and impose competitive bidding rules for mutually
exclusive paging applications.
 
     The respective operating subsidiaries of ProNet and Metrocall are licensed
by the FCC to provide paging services in the respective geographic areas in
which they have operations. The Communications Act requires prior FCC approval
for the transfer of actual or legal control of companies holding FCC
authorizations. The Communications Act requires that the FCC find that the
proposed acquisition or transfer would serve the public interest, convenience
and necessity as a prerequisite to granting its approval. The FCC may also
require that Metrocall or a transferee demonstrate that it possesses the
requisite legal and technical qualifications to operate the licensed facilities
in order for the transfer to be approved.
 
                                       39
<PAGE>   51
 
     The Merger Agreement provides that (pending completion of the Merger)
Metrocall shall not assume, either directly or indirectly, de jure control (50%
or more of the votes) or de facto control (control in practical effect) of
ProNet without the prior consent of the FCC. The prior approval of the FCC must
be obtained to consummate the Merger. Metrocall has filed applications seeking
FCC approval to consummate the Merger. All applications necessary to effectuate
the Merger that are required by the Communications Act to be placed on Public
Notice, have been accepted for filing by FCC Public Notices as of September 16,
1997. The Communications Act provides for a thirty-day protest period from the
date an application is accepted for filing; if an application passes that
thirty-day period without being protested, it is generally granted in a matter
of a few weeks. Metrocall does not expect any protests to the transfer of
control applications necessary to effectuate the Merger, and expects that the
applications will be processed promptly after the end of their respective
protest periods; however, there can be no guarantees that third parties will not
protest one or more of the applications, or that the FCC will be able to
complete processing the applications in a timely manner. In the event of a
challenge by an adverse party, the termination date established in the Merger
Agreement may not allow time for regulatory approvals to be received, or if
received, for the approvals to become final.
 
     Under the Communications Act, the amount of capital stock that aliens or
their representatives may own or vote in an FCC-licensed company is generally
limited to 20% in the parent of such a company. Metrocall believes that it and
ProNet currently meet this requirement. Should this restriction ever be found to
be violated, the FCC may revoke or refuse to grant or renew a license, or refuse
to approve the transfer of control of such license.
 
     State Regulatory Approval.  In addition to regulation by the FCC, certain
states historically imposed various regulations on the common carrier paging
operations of Metrocall and ProNet. Historically, regulation in some states
required Metrocall and ProNet to obtain certain certificates of public
convenience and necessity before constructing, modifying or expanding paging
facilities or offering or abandoning paging services. Rates, terms and
conditions under which Metrocall or ProNet provided service, or any changes to
those rates, have also been subject to state regulation. However, under the
federal Budget Reconciliation Act of 1993 (the "Budget Act"), as a general rule
states are preempted from exercising rate and entry regulation of carriers such
as Metrocall and ProNet which are deemed to be providing Commercial Mobile Radio
Service ("CMRS"). States may, however, petition the FCC for authority to
continue to regulate CMRS rates, which petitions are to be evaluated by the FCC
applying the statutory criteria set forth in the Budget Act. In May 1995, the
FCC rejected such petitions by New York, Louisiana, Hawaii, Arizona, Ohio,
California and Connecticut. The FCC has denied all State requests for continued
authority to regulate CMRS rates. The State of Connecticut appealed the FCC's
decision to the U.S. Court of Appeals for the Second Circuit, which affirmed the
FCC's decision in early 1996.
 
     Some states regulating paging services have required the prior approval of
transactions that result in the assignment or transfer of control of a
certificated paging carrier, notwithstanding federal preemption. It is possible
that one or more states may continue to assert a right to review and approve the
Merger. In such event, Metrocall may choose to challenge such assertion, seek to
obtain such approval or take such other or further actions as it deems necessary
or advisable at the time. If any state were to claim a right to approve the
Merger, there is no assurance that any challenge to override or overturn that
claim would be successful or that any approval, if sought, would be granted or,
if granted, would be on a timely basis or on terms and conditions acceptable to
Metrocall.
 
RESTRICTIONS ON RESALES BY AFFILIATES
 
     The Metrocall Common Stock issuable in the Merger has been registered under
the Securities Act, but this registration does not cover resales by stockholders
of ProNet who are deemed to control or be under common control with ProNet
("Affiliates"). Affiliates of ProNet may not sell their shares of Metrocall
Common Stock acquired in the Merger except pursuant to an effective registration
statement under the Securities Act covering such shares, or in compliance with
the resale provisions of Rule 145 promulgated under the Securities Act or
another applicable exemption from the registration requirements of the
Securities Act.
 
                                       40
<PAGE>   52
 
                  THE MERGER AGREEMENT AND TERMS OF THE MERGER
 
     The following is a brief summary of certain provisions of the Merger
Agreement, a copy of which is included as Exhibit A and is incorporated herein
by reference. This summary does not purport to be complete and is qualified in
its entirety by reference to the Merger Agreement. All stockholders are urged to
read the Merger Agreement in its entirety. Capitalized terms used herein and not
otherwise defined have the same meaning as in the Merger Agreement.
 
EFFECTIVE TIME OF THE MERGER
 
     The Merger Agreement provides that, subject to the terms and conditions
thereof and the satisfaction or waiver of the other conditions to the Merger,
including FCC approval, and in accordance with Delaware Law, ProNet will be
merged with and into Metrocall, the separate existence of ProNet will cease, and
Metrocall will continue its existence as the surviving corporation (the
"Surviving Corporation"). The Effective Time of the Merger will be the date and
time of the filing of a certificate of merger with respect to the Merger or
other appropriate documents with the Secretary of State of the State of
Delaware.
 
MANNER AND BASIS OF CONVERTING SHARES
 
     In the Merger, each outstanding ProNet Share will be converted into the
right to receive: (i) that number of Metrocall Common Stock equal to the
Conversion Ratio, plus (ii) cash in respect of fractional shares of Metrocall
Common Stock, if any. The Conversion Ratio represents a basic conversion ratio
of 0.90 share of Metrocall Common Stock for each share of ProNet Common Stock,
subject to adjustment if certain liabilities of ProNet exceed certain targets,
if operating cash flow (earnings before interest, taxes, depreciation and
amortization) of ProNet is less or more than certain targets, and if new pager
inventory of ProNet falls below certain targets. See "-- Number of Shares to be
Issued; Conversion Ratio Adjustments."
 
     The Surviving Corporation will not issue fractional shares of Metrocall
Common Stock. In lieu of any fractional shares of Metrocall Common Stock, the
holder of a ProNet Share converted in the Merger will be entitled to receive a
cash payment determined by multiplying (i) the closing price of a share of
Metrocall Common Stock on the NSM on the trading day prior to the Closing by
(ii) the fraction of a share of Metrocall Common Stock to which such holder
would be entitled.
 
     The Merger Agreement provides that the Metrocall Certificate and Metrocall
By-Laws will become the Certificate of Incorporation and By-Laws of the
Surviving Corporation. In addition, under the Merger Agreement the directors of
Metrocall plus three directors designated by ProNet Surviving Corporation
following the Merger and the officers of Metrocall immediately prior to the
Effective Time will become the officers of the Surviving Corporation following
the Merger for such term as is provided in the Metrocall By-Laws. See
"MANAGEMENT OF THE SURVIVING CORPORATION."
 
NUMBER OF SHARES TO BE ISSUED; CONVERSION RATIO ADJUSTMENTS
 
     The Conversion Ratio is 0.90 share of Metrocall Common Stock for each share
of ProNet Common Stock, subject to adjustment as described below. Accordingly,
based on the Conversion Ratio of 0.90, Metrocall would issue 12,306,388 shares
of Metrocall Common Stock as consideration for an aggregate of 13,673,765 shares
of ProNet Common Stock that are presently issued and outstanding or which ProNet
has agreed to issue. The number of shares of Metrocall Common Stock issuable in
the Merger are subject to the following adjustments. In the event of such
adjustment, the Conversion Ratio would be adjusted to equal the number of shares
of Metrocall Common Stock to be issued based on the adjustments, divided by
13,673,765.
 
  Liabilities Adjustment
 
     If the sum of ProNet's aggregate indebtedness and its working capital
surplus or deficit at the end of the calendar month prior to closing
("Measurement Date") exceeds a specified target, the number of shares of
Metrocall Common Stock to be issued in the Merger will be reduced by the excess,
divided by $4.875. The
 
                                       41
<PAGE>   53
 
target net liabilities range from $183.2 million on October 31, 1997 to $185.2
million on February 28, 1998. Net liabilities as defined for purposes of the
adjustment were $     million on June 30, 1997.
 
  Operating Cash Flow Adjustment
 
     If ProNet's annualized operating cash flow (earnings before interest,
taxes, depreciation and amortization, as defined) is greater than 110% or less
than 90% of target cash flow, the number of shares of Metrocall Common Stock to
be issued in the Merger will be increased or decreased, whichever is applicable,
by a number equal to eight times the excess over 110% or shortfall below 90%,
divided by $4.875. Target cash flow for this purpose is defined to mean
operating cash flow for the period beginning on July 1, 1997 and ending on the
Measurement Date. The annualized target cash flow amounts range from $31.2
million for the period ended September 30, 1997 to $31.83 million for the period
ended February 28, 1998. For purposes of calculating operating cash flow, the
following items are excluded from expenses: (1) costs associated with employee
terminations not to exceed $239,000; (2) verified costs of deconstructing
ProNet's nationwide network, not to exceed $2,500 per site; and (3) if approved
by Metrocall, expenditures expected to result in a future benefit for the
Surviving Corporation.
 
  New Pager Inventory Adjustment
 
     If ProNet's new pager inventory at the Measurement Date is less than 50,000
units (45,000 of which must be Motorola pagers), the number of shares of
Metrocall Common Stock to be issued in the Merger will be reduced by the number
of new pagers in inventory below 50,000 (or the number of Motorola pagers below
45,000, if that number is greater) times $50.00, divided by $4.875.
 
  Financial Statement Review
 
     Pursuant to the Merger Agreement, ProNet is obligated to deliver to
Metrocall (i) audited consolidated financial statements for the fiscal period
beginning January 1, 1997 and ending September 30, 1997, and (ii) monthly
financial statements for each calendar month after September 30, 1997, certified
as true and correct by the Chief Financial Officer of ProNet. Also pursuant to
the Merger Agreement, ProNet will cause Ernst & Young LLP to perform review
procedures in accordance with Statement on Auditing Standards Number 71 for
months including and after November 1997, and Metrocall is entitled to perform
such investigations as it reasonably deems necessary to confirm whether ProNet's
calculation of annualized operating cash flow or relevant net liabilities are
correct. In the event of a dispute regarding the correct amount of annualized
operating cash flow or relevant net liabilities, Metrocall and ProNet will
submit the matter to the Washington office of KPMG Peat Marwick LLP, which will
determine the correct amount within ten business days and which conclusion will
be binding on the parties.
 
TREATMENT OF STOCK OPTIONS
 
     Each outstanding ProNet Option granted pursuant to the ProNet Option Plans
that has not vested prior to the Effective Time will become fully exercisable
and vested as of the Effective Time. ProNet has agreed to use its reasonable
best efforts to cause each optionee to agree to the replacement of those
options, effective as of the Effective Time, with options under Metrocall's 1996
Stock Option Plan to purchase such number of Metrocall Shares equal to the
number of ProNet Shares subject to such ProNet Option immediately prior to the
Effective Time multiplied by the Conversion Ratio, with the exercise price equal
to the exercise price for such ProNet Option immediately prior to the Effective
Time divided by the Conversion Ratio. All ProNet Options held by any ProNet
director, by employees whose employment is involuntarily terminated without
cause within six months after the Closing Date, or by certain other employees as
agreed by Metrocall, will be exercisable until the earlier of (i) the fourth
anniversary of the Closing Date and (ii) the date on which such ProNet Options
would otherwise have expired if such person had remained a director or employee
of ProNet. The Surviving Corporation will notify ProNet option holders regarding
their rights under ProNet Options as soon as practicable after the Effective
Time. Currently exercisable ProNet Options may be exercised and the ProNet
Shares received thereby exchanged in the Merger.
 
                                       42
<PAGE>   54
 
INDEMNIFICATION
 
     The Merger Agreement provides that Metrocall shall, from and after the
Effective Time, to the fullest extent permitted by Delaware Law, ProNet's
Certificate of Incorporation, Bylaws or indemnification agreements in effect on
the date of the Merger Agreement, including provisions relating to advancement
of expenses incurred in the defense of any action or suit, indemnify, defend and
hold harmless all persons who are on the date of the Merger Agreement, or have
been at any time prior to the date of the Merger Agreement, or who become prior
to the Effective Time, an officer, director, employee or agent of ProNet or its
subsidiaries, or who are or were serving at the request of ProNet or any of its
subsidiaries as a director, officer, employee or agent of another corporation,
partnership, trust, limited liability company or other business enterprise
(each, an "Indemnified Party") against all losses, claims, damages, liabilities,
costs and expenses, judgments, fines, losses and amounts paid in settlement in
connection with any actual or threatened claim, proceedings or investigations
that are based upon or arise out of such person's service as a director,
officer, employee or agent of ProNet or any subsidiaries or the Merger Agreement
or any transactions contemplated thereby.
 
     The Merger Agreement also provides for the preservation of all rights to
indemnification, advancement of expenses, exculpation, limitation of liability
and any and all similar rights now existing in favor of the employees, agents,
directors or officers of ProNet and its subsidiaries under their respective
charters or by-laws, under indemnification agreements or otherwise, for six
years after the Effective Time, and for the Surviving Corporation to use all
reasonable efforts to maintain directors' and officers' liability insurance
maintained by ProNet (or substantially similar coverage) for six years after the
Effective Time.
 
REPRESENTATIONS AND WARRANTIES
 
     The Merger Agreement contains certain customary representations and
warranties of the parties. Each of ProNet and Metrocall has made certain other
representations and warranties to the other regarding, among other things: (i)
their respective organization, subsidiaries and capitalization; (ii) their
respective authority to enter into and perform their respective obligations
under the Merger Agreement and authorization of the transactions contemplated by
the Merger Agreement; (iii) the compliance of the transactions contemplated by
the Merger Agreement with their respective Certificates of Incorporation and
By-laws, certain agreements and applicable laws; (iv) the accuracy and
completeness of their respective Exchange Act filings with the Commission,
including this Joint Proxy Statement/Prospectus; (v) the absence of undisclosed
liabilities; (vi) the absence of material adverse changes in the condition,
results of operations, business and assets of each such party and their
respective subsidiaries, taken as a whole, since December 31, 1996; (vii)
litigation; (viii) transactions with their respective affiliates; (ix)
environmental matters; (x) employee benefit plans and contracts; (xi) taxes; and
(xii) brokers' fees. The representations and warranties contained in the Merger
Agreement do not survive beyond the Effective Time.
 
CONDUCT OF BUSINESS PENDING THE MERGER
 
     Conduct of Business by ProNet.  The Merger Agreement provides that, prior
to the Effective Time, except (x) as otherwise contemplated therein or in the
Option Agreement, or (y) as agreed in writing by Metrocall, (i) the business of
ProNet and its subsidiaries shall be conducted only in, and ProNet and its
subsidiaries will not take any action except in, the ordinary and usual course
of business and consistent with past practice, and ProNet and its subsidiaries
will use all reasonable efforts, consistent with past practice, to maintain and
preserve their respective business organizations, assets, employees and
advantageous business relationships; (ii) ProNet will not, directly or
indirectly, (A) sell, transfer or pledge or agree to sell, transfer or pledge
any shares of ProNet Common Stock, preferred stock or capital stock of any of
its subsidiaries beneficially owned by it, or (B) split, combine or reclassify
the outstanding shares of ProNet Common Stock, or any outstanding capital stock
of any of the subsidiaries of ProNet; (iii) neither ProNet nor any of its
subsidiaries will (A) amend its organizational documents, (B) issue, grant,
sell, pledge, dispose of or encumber any shares of, or securities convertible
into or exchangeable for, or options, warrants, calls, commitments or rights of
any kind to acquire, any shares of capital stock of any class of ProNet or its
subsidiaries or any other ownership interests (including but not limited to
stock appreciation rights or phantom stock), other than shares of ProNet Common
Stock reserved for issuance on the date of the Merger
 
                                       43
<PAGE>   55
 
Agreement pursuant to the exercise of ProNet Options outstanding on the date of
the Merger Agreement, (C) transfer, lease, license, sell, mortgage, pledge,
dispose of, or encumber any material assets individually or in the aggregate for
consideration in excess of $125,000 per fiscal quarter, other than in the
ordinary and usual course of business and consistent with past practice, (D)
incur any indebtedness other than borrowings under existing agreements or modify
the terms of any indebtedness, (E) incur any liability, other than borrowings
permitted by clause (D) above, of money under existing agreements or incurrence
of other liabilities in the ordinary and usual course of business and consistent
with past practice, or (F) redeem, purchase or otherwise acquire directly or
indirectly any of its capital stock; (iv) neither ProNet nor any of its
subsidiaries will terminate certain specified agreements, amend or modify
certain specified agreements in any material respect or waive, release or assign
any material rights or claims, except in the ordinary course of business and
consistent with past practice; (v) ProNet will not declare, set aside or pay any
dividend or other distribution payable in cash, stock or property with respect
to its capital stock; (vi) each of ProNet and its subsidiaries shall maintain in
full force and effect such types and amounts of insurance issued by insurers of
recognized responsibility insuring it with respect to its respective business
and properties, in such amount and against such losses and risk as is usually
carried by persons engaged in the same or similar business; (vii) neither ProNet
nor any of its subsidiaries will (A) except for or on behalf of subsidiaries,
assume, guarantee, endorse or otherwise become liable or responsible (whether
directly, contingently or otherwise) for the obligations of any other person,
(B) make any loans, advances or capital contributions to, or investments in, any
other person (other than to subsidiaries of ProNet pursuant to ProNet's written
obligations on the date of the Merger Agreement), other than in the ordinary
course of business and consistent with past practice, or (C) enter into any
commitment or transaction with respect to any of the foregoing; (viii) neither
ProNet nor any of its subsidiaries will change any of the accounting methods
used by it unless required by generally accepted accounting principles; (ix)
neither ProNet nor any of its subsidiaries will adopt a plan of complete or
partial liquidation, dissolution, merger, consolidation, restructuring,
recapitalization or other reorganization of ProNet or any of its subsidiaries
(other than the Merger); (x) neither ProNet nor any of its subsidiaries will
acquire (by merger, consolidation, or acquisition of stock or assets or
otherwise) any corporation, partnership or other business organization or
division of any such entity; (xi) neither ProNet nor any of its subsidiaries
will (A) increase the compensation or fringe benefits of any of its directors,
officers or employees, provided, that ProNet may increase the compensation of
employees of ProNet or its subsidiaries who are not officers or directors of
ProNet and whose annual compensation as of the date of the Merger Agreement is
less than $50,000, if such increases are made in the ordinary course of business
and consistent with past practice, and provided that ProNet will promptly advise
Metrocall of any increases of compensation of its employees, (B) grant any
severance or termination pay not currently required to be paid under existing
severance plans or agreements to any present or former director, office or
employee of ProNet or any of its subsidiaries, (C) enter into or modify any
employment, consulting or severance agreement with any present or former
director, officer or employee of ProNet or any of its subsidiaries, (D) or
establish, adopt, enter into or amend or terminate any collective bargaining,
bonus, profit sharing, thrift, compensation, stock option, restricted stock,
pension, retirement, deferred compensation, employment termination, severance or
other plan, agreement, trust, fund, policy or arrangement for the benefit of any
directors, officers or employees of ProNet; (xii) neither ProNet nor any of its
subsidiaries will make any material tax election or settle or compromise any
material federal, state, local or foreign tax liability except for settlements
that would not have a material adverse effect on ProNet and its subsidiaries,
taken as a whole; (xiii) neither ProNet nor any of its subsidiaries will settle
or compromise any pending or threatened suit, action or claim, which settlement
or compromise is material to ProNet and its subsidiaries, taken as a whole, or
which relates to the transactions contemplated by the Merger Agreement; (xiv)
neither ProNet nor any of its subsidiaries will pay, discharge or satisfy any
material claims, liabilities or obligations (absolute, accrued, asserted or
unasserted, contingent or otherwise), other than the payment, discharge or
satisfaction in the ordinary course of business and consistent with past
practice of liabilities (A) reflected or reserved against in the financial
statements of ProNet, (B) incurred in the ordinary course of business and
consistent with past practice, or (C) incurred in a manner not otherwise
prohibited under the Merger Agreement; (xv) ProNet shall not effect a
registration under the Securities Act with respect to Shares held by any person
and entity, other than the registration of Shares pursuant to registration
rights agreements in effect on the date of the Merger Agreement or pursuant to
the Option Agreement; and
 
                                       44
<PAGE>   56
 
(xvi) neither ProNet nor any of its subsidiaries will authorize or enter into an
agreement to do any of the foregoing.
 
     Conduct of Business by Metrocall.  The Merger Agreement also provides that,
prior to the Effective Time, except (x) as contemplated by the Merger Agreement
or the Option Agreement, or (y) as agreed in writing by ProNet, (i) the business
of Metrocall and its subsidiaries will be conducted only in, and Metrocall and
its subsidiaries will not take any action except in, the ordinary and usual
course of business and consistent with past practice, and Metrocall and its
subsidiaries will use all reasonable efforts, consistent with past practice, to
maintain and preserve their business organizations, assets, employees and
advantageous business relations; (ii) Metrocall will not (A) amend its
certificate of incorporation or by-laws, provided, that Metrocall's Board will
submit a resolution to approve the Charter Amendment for a vote of the
stockholders at a stockholders meeting, and if the Charter Amendment is approved
at that meeting, Metrocall will so amend its certificate of incorporation, or
(B) redeem, purchase or otherwise acquire directly or indirectly any of its
capital stock, provided, that Metrocall may redeem its Series A Preferred Stock
and Series B Preferred Stock in accordance with the respective terms of such
stock; (iii) Metrocall will not declare, set aside or pay any dividend or other
distribution payable in cash, stock or property with respect to its capital
stock except for dividends on the Series A Preferred Stock and the Series B
Preferred Stock payable in shares of such series in accordance with the
respective terms of such stock; (iv) Metrocall will not, directly or indirectly,
split, combine or reclassify the outstanding Metrocall Common Stock; (v) with
the exception of the existing liens in favor of Metrocall's bank lenders,
neither Metrocall nor any of its subsidiaries will issue, sell, pledge, dispose
of or encumber any shares of, or securities convertible into or exchangeable
for, or options, warrants, calls, commitments or rights of any kind to acquire,
any shares of capital stock of any class of Metrocall or its subsidiaries, other
than (A) issuances of Metrocall Common Stock reserved for issuance on the date
of the Merger Agreement upon exercise of certain options outstanding on the date
of the Merger Agreement, (B) issuances by Metrocall of Metrocall Common Stock
upon conversion of the Series A Preferred Stock or Series B Preferred Stock in
accordance with the respective terms of such stock, (C) issuances of Series A
Preferred Stock or Series B Preferred Stock as dividends in accordance with the
respective terms of such stock, (D) issuance by Metrocall of Metrocall Common
Stock or other Metrocall securities for the fair market value thereof, provided,
that the issuance of Metrocall Common Stock pursuant to an acquisition agreement
with a third party on terms negotiated on an arms' length basis or the issuance
of other securities convertible into Metrocall Common Stock to an unaffiliated
third party on terms negotiated on an arms' length basis shall be deemed for
purposes hereof the issuance of Metrocall Common Stock at the fair market value
of such Metrocall Common Stock, and (E) the granting (and issuance of shares
upon exercise) of options pursuant to Metrocall's director and employee stock
option plans as in effect on the date of the Merger Agreement with an exercise
price equal to the fair market value of the Metrocall Common Stock on the date
of grant; (vi) Metrocall will not adopt a plan of complete or partial
liquidation, dissolution, merger, consolidation, restructuring, recapitalization
or other reorganization of Metrocall or any subsidiary; (vii) Metrocall will use
its reasonable best efforts to maintain the listing of Metrocall Common Stock on
the NSM; and (viii) neither Metrocall nor any of its subsidiaries will authorize
or enter into an agreement to do any of the foregoing.
 
RESPONSE TO OTHER OFFERS
 
     Pursuant to the Merger Agreement, ProNet and its affiliates are required to
immediately cease all existing discussions or negotiations, if any, with any
parties (other than Metrocall) conducted with respect to any proposal relating
to an Acquisition Proposal.
 
     The Merger Agreement provides that ProNet may furnish information and
access (in each case only in response to a request made after the date of the
Merger Agreement which was not encouraged, solicited or initiated by ProNet or
its affiliates) pursuant to appropriate confidentiality agreements, and may
participate in discussions and negotiate with such party concerning any
Acquisition Proposal, but only if (i) such party has submitted a written
proposal to the Board of Directors of ProNet relating to any such transaction
involving economic consideration per share of ProNet Common Stock that ProNet's
Board of Directors reasonably believes is economically superior to the
consideration to be paid pursuant to the Merger Agreement and which
 
                                       45
<PAGE>   57
 
does not include or contemplate any condition relating to the obtaining of funds
for such Acquisition Proposal, and (ii) ProNet's Board of Directors has made a
Fiduciary Determination (as defined below). ProNet must provide Metrocall notice
of and copies or summaries of all written or oral Acquisition Proposals and keep
Metrocall advised of all such Acquisition Proposals.
 
     Except as permitted by the Merger Agreement, neither ProNet nor any of its
affiliates will, directly or indirectly, encourage or solicit submission of any
inquiries, proposals or offers by participate in or initiate any discussions or
negotiations with disclose any information about ProNet or its subsidiaries to,
or otherwise assist, facilitate or encourage, or enter into any agreement or
understanding with any third party in connection with any Acquisition Proposal.
In addition, the Board of Directors of ProNet will not recommend that the
stockholders of ProNet tender their Shares in connection with any tender offer
unless ProNet's Board of Directors makes a Fiduciary Determination.
 
     ProNet will not release any third party from, or waive any provisions of,
any confidentiality or standstill agreement unless its Board of Directors makes
a Fiduciary Determination.
 
     A "Fiduciary Determination" means the directors constituting a majority of
all directors of ProNet then in office reasonably determine in good faith, based
upon the advice of ProNet's outside counsel, that the taking of action or the
failure to take action (or to withdraw or modify any recommendation) is required
to properly discharge such directors' fiduciary duties to stockholders of ProNet
under Delaware law.
 
CONDITIONS TO THE MERGER
 
     Under the Merger Agreement, the respective obligations of Metrocall and
ProNet to effect the Merger are subject to the satisfaction on or prior to the
Closing Date of each of the following conditions: (i) the Merger Agreement has
been approved and adopted by the stockholders of ProNet and Metrocall; (ii) no
statute, rule, order, decree or regulation has been enacted or promulgated by
any foreign or domestic governmental entity which prohibits the consummation of
the Merger and all foreign or domestic governmental consents, orders and
approvals required for the consummation of the Merger have been obtained and are
in effect at the Effective Time, except where the failure to have obtained any
such order or approval would not have a material adverse effect on the Surviving
Corporation and its subsidiaries, taken as a whole, after the Effective Time;
(iii) there is no order or injunction of a foreign or domestic court or other
governmental authority in effect precluding, restraining, enjoining or
prohibiting consummation of the Merger; (iv) a final order permitting the Merger
to be consummated has been received from the FCC, and orders permitting the
Merger to be consummated have been received from any requisite state
governmental authorities; (v) the expiration or early termination of any waiting
period under the HSR Act has occurred; and (vi) the registration statement for
Metrocall Common Stock to be issued in the Merger has been declared effective
and no stop order is in effect with respect thereto.
 
     The obligation of ProNet to effect the Merger is subject to the
satisfaction on or prior to the Closing Date of the following additional
conditions: (i) Metrocall has performed and complied in all material respects
with all obligations and agreements under the Merger Agreement; (ii) the
representations and warranties of Metrocall contained in the Merger Agreement
were true and correct in all material respects at the time when made and are
true and correct in all material respects on the Closing Date, except for
representations made as of a certain date; (iii) except for the transactions
contemplated by the Merger Agreement, and except for matters which affect
generally the economy or the industry in which Metrocall and its subsidiaries
are engaged, as of the Closing Date, there has not occurred any change in the
business, properties, assets, liabilities, financial condition, cash flows,
operations, licenses, franchises or results of operations of Metrocall or its
subsidiaries which has had a material adverse effect on Metrocall and its
subsidiaries, taken as a whole; (iv) receipt by ProNet of a certificate from
Metrocall attesting to compliance with the conditions set forth in clauses (i),
(ii) and (iii) above; (v) receipt by ProNet of the opinion of Metrocall's legal
counsel with respect to the due authorization and issuance of Metrocall Common
Stock to be issued in the Merger; (vi) the Metrocall Common Stock to be issued
in the Merger has been admitted for quotation on the NSM; and (vii) receipt by
ProNet of the opinion from its legal counsel to the effect that the Merger will
be treated as a tax-free reorganization within the meaning of section 368(a) of
the Code.
 
                                       46
<PAGE>   58
 
     The obligation of Metrocall to effect the Merger is subject to the
satisfaction on or prior to the Closing Date of the following additional
conditions: (i) ProNet has performed or complied in all material respects with
all obligations and agreements under the Merger Agreement; (ii) the
representations and warranties of ProNet contained in the Merger Agreement were
true and correct in all material respects at the time when made and are true and
correct in all material respects on the Closing Date, except for representations
made as of a certain date; (iii) except for the transactions contemplated by the
Merger Agreement and the Option Agreement, and except for matters which affect
generally the economy or the industry in which ProNet and its subsidiaries are
engaged, as of the Closing Date, there has not occurred any change in the
business, properties, assets, liabilities, financial condition, cash flows,
operations, licenses, franchises or results of operations of ProNet or its
subsidiaries which has had a material adverse effect on ProNet and its
subsidiaries, taken as a whole; (iv) receipt by Metrocall of a certificate from
ProNet attesting to compliance with the conditions set forth in clauses (i),
(ii) and (iii) above; (v) Metrocall has received audited consolidated financial
statements for the fiscal period beginning January 1, 1997 and ended September
30, 1997, and monthly financial statements for each calendar month after
September 30, 1997, certified as true and correct by the Chief Financial Officer
of ProNet; for months including and after November 1997, Ernst & Young has
performed SAS 71 review procedures with respect to monthly financial statements
for each calendar month after September 30, 1997; Metrocall has had the
opportunity to perform such investigations as it has reasonably deemed necessary
to confirm whether ProNet's calculation of Annualized Cash Flow (as defined in
the Merger Agreement) or Relevant Net Liabilities (as defined in the Merger
Agreement) were correct; ProNet has represented that the foregoing financial
statements were prepared from, and are in accordance with, the books and records
of ProNet and its consolidated subsidiaries, comply in all material respects
with applicable accounting requirements, were prepared in accordance with
generally accepted accounting principles applied on a consistent basis
throughout the periods involved (except as may be indicated in the notes
thereto), and present fairly the consolidated financial position and the
consolidated results of operations and cash flows of ProNet and its consolidated
subsidiaries as at the dates thereof or for the periods presented therein; (vi)
(A) the settlement of the ProNet Plaintiffs' Litigation has not been modified in
any material respect, (B) such settlement has been approved by final order of
all courts having jurisdiction thereof and (C) the time for any appeals of such
orders has expired, or any appeals thereof that have been or may be taken could
not reasonably result in a material adverse effect to ProNet and its
subsidiaries, taken as a whole; plaintiffs representing no more than 90,000
ProNet Shares have opted out of the ProNet Plaintiffs' Settlement; (vii) the
settlement of the litigation brought against ProNet by certain underwriters has
been consummated in accordance with the terms of a letter between counsel for
ProNet and counsel for the underwriters; (viii) annualized operating cash flow
was at least 80% of target cash flow for the Measurement Date prior to the
Closing Date; and (ix) Metrocall has received a written opinion from its legal
counsel to the effect that the Merger will be treated as a tax-free
reorganization within the meaning of section 368(a) of the Code.
 
TERMINATION
 
     The Merger Agreement provides that it may be terminated prior to the
Effective Time, whether before or after stockholder approval, by the mutual
written consent of Metrocall and ProNet. The Merger Agreement may also be
terminated prior to the Effective Time, whether before or after stockholder
approval, by either ProNet or Metrocall (i) if any governmental entity has
issued an order, decree or ruling or taken any other action permanently
restraining, enjoining or otherwise prohibiting the transactions contemplated by
this Agreement and such order, decree, ruling or other action shall have become
final and non-appealable; or (ii) if the Merger has not occurred by March 31,
1998, and the failure of ProNet or Metrocall to fulfill any obligation under the
Merger Agreement in any material respect was not the proximate cause or did
result in the failure of the Merger to occur by March 31, 1998.
 
     The Merger Agreement may also be terminated prior to the Effective Time,
whether before or after stockholder approval, by ProNet (i) if (A) there has
been a breach by Metrocall of any representation or warranty contained in the
Merger Agreement which would have or would be reasonably likely to have a
material adverse effect on Metrocall and its subsidiaries, taken as a whole, or
(B) Metrocall or any of its subsidiaries has failed to perform and comply in any
material respect with Metrocall's obligations and agreements under the Merger
Agreement or the Option Agreement (and such failure has not been cured
 
                                       47
<PAGE>   59
 
within the 30-day cure period provided for in the Merger Agreement); (ii) if the
Merger Agreement and the Charter Amendment have not been approved and adopted by
the requisite vote of the holders of the capital stock of Metrocall; or (iii)
if, (A) pursuant to a Fiduciary Determination, the Board of Directors of ProNet
has resolved to accept an Acquisition Proposal, (B) ProNet has paid Metrocall a
termination fee equal to $4 million in cash, and (C) ProNet is otherwise in
compliance with its obligations under the non-solicitation provisions of the
Merger Agreement.
 
     The Merger Agreement may also be terminated prior to the Effective Time,
whether before or after stockholder approval, by Metrocall (i) if (A) there has
been a breach by ProNet of any representation or warranty contained in the
Merger Agreement which would have or would be reasonably likely to have a
material adverse effect on ProNet and its subsidiaries, taken as a whole, or (B)
ProNet or any of its subsidiaries has failed to perform and comply in any
material respect with ProNet's obligations and agreements under the Merger
Agreement (and such failure has not been cured within the 30-day cure period);
(ii) if the Merger Agreement has not been adopted by the requisite vote of the
holders of the capital stock of ProNet; (iii) if the Board of Directors of
ProNet (A) has withdrawn or modified or changed, in any manner adverse to
Metrocall, its approval or recommendation of the Merger Agreement or the Merger
or (B) has failed to recommend against an Acquisition Proposal involving a
tender offer or has failed to reject any other Acquisition Proposal within ten
business days after receipt by the Board of Directors of ProNet of such
proposal, or ProNet has executed an agreement in principle (or similar
agreement) or definitive agreement relating to an Acquisition Proposal (or the
Board of Directors of ProNet has resolved to do any of the foregoing); or (iv)
annualized operating cash flow determined as of any two Measurement Dates is
less than 80% of target cash flow for such Measurement Dates.
 
TERMINATION FEES
 
     The Merger Agreement provides that if it is terminated by ProNet because
the Merger Agreement and the Charter Amendment have not been approved and
adopted by the requisite vote of the holders of capital stock of Metrocall, then
Metrocall will immediately pay to ProNet a termination fee equal to $4 million
in cash.
 
     The Merger Agreement also provides that if it is terminated (i) by ProNet
because its Board of Directors has resolved to accept an Acquisition Proposal
pursuant to a Fiduciary Determination, and ProNet has otherwise been in
compliance with its obligations under the non-solicitation provisions of the
Merger Agreement; or (ii) by Metrocall because the Merger Agreement was not
approved and adopted by the requisite vote of the holders of capital stock of
ProNet, or because ProNet's Board of Directors (A) has withdrawn or modified or
changed, in any manner adverse to Metrocall, its approval or recommendation of
the Merger Agreement or the Merger, or (B) has failed to recommend against an
Acquisition Proposal involving a tender offer or failed to reject any other
Acquisition Proposal within ten business days after receipt by the Board of
Directors of ProNet of such proposal or ProNet has executed an agreement in
principle (or similar agreement) or definitive agreement relating to an
Acquisition Proposal (or the Board of Directors of ProNet resolved to do any of
the foregoing), then ProNet will immediately pay to Metrocall a termination fee
equal to $4 million in cash. In addition, termination of the Merger Agreement as
described in (i) or (ii) constitutes a "Trigger Event" under the Option
Agreement, entitling Metrocall to exercise the Option. See "THE MERGER AND
RELATED TRANSACTIONS -- Option Agreement."
 
AMENDMENT
 
     The Merger Agreement provides that it may be amended, whether before or
after any vote of the stockholders of ProNet and Metrocall, except that after
the approval of the Merger Agreement by the stockholders of ProNet and
Metrocall, no such amendment may be made which by law requires further approval
of stockholders without obtaining such further approval.
 
                                       48
<PAGE>   60
 
                     DESCRIPTION OF METROCALL CAPITAL STOCK
 
     The authorized capital stock of Metrocall consists of 60,000,000 shares of
Metrocall Common Stock and 1,000,000 shares of preferred stock, par value $0.01
per share (the "Metrocall Preferred Stock"), of which 810,000 shares have been
designated as Series A Preferred Stock and 9,000 shares will be designated
Series B Preferred Stock. As of the Metrocall Record Date, there were
[29,198,600] shares of Metrocall Common Stock, 170,772 shares of Series A
Preferred Stock and 1,500 shares of Series B Preferred Stock outstanding. In
addition, warrants to purchase 2,915,254 shares of Metrocall Common Stock (the
"Warrants") were issued and outstanding as of the Metrocall Record Date.
 
COMMON STOCK
 
     The holders of Metrocall Common Stock are entitled to one vote for each
share held of record on all matters submitted to a vote of stockholders of
Metrocall. Holders of Metrocall Common Stock have no cumulative voting rights
and, except as described below, no preemptive, subscription, redemption, sinking
fund or conversion rights. Subject to preferences that may be applicable to any
then outstanding Metrocall Preferred Stock, holders of Metrocall Common Stock
are entitled to receive ratably such dividends as may be declared by the Board
of Directors out of funds legally available therefor. In the event of a
liquidation, dissolution or winding up of Metrocall, holders of the Metrocall
Common Stock will be entitled to share ratably in all interests remaining after
payment of liabilities and the liquidation preference of any then outstanding
Metrocall Preferred Stock.
 
     The Metrocall Certificate authorizes its Board of Directors to issue, from
time to time and without further stockholder action, one or more series of
Metrocall Preferred Stock, and to fix the relative rights and preferences of the
shares, including voting powers, dividend rights, liquidation preferences,
redemption rights and conversion privileges. As of the date of this Joint Proxy
Statement/Prospectus, the Board of Directors has authorized the Series A
Preferred Stock and the Series B Preferred Stock. Because of its broad
discretion with respect to the creation and issuance of additional shares of
Metrocall Preferred Stock without stockholder approval, Metrocall's Board of
Directors could adversely affect the voting power of the holders of Metrocall
Common Stock and, by issuing shares of Metrocall Preferred Stock with certain
voting, conversion and/or redemption rights, could discourage any attempt to
obtain control of Metrocall.
 
     Under the Communications Act of 1934, as amended (the "Communications
Act"), not more than 20% of Metrocall's capital stock may be owned of record
directly by other than United States citizens or entities. The Metrocall
Certificate authorizes its Board of Directors to redeem any of Metrocall's
outstanding capital stock to the extent necessary to prevent the loss or secure
the reinstatement of any license or franchise from any governmental agency. Such
stock may be redeemed at the lesser of (i) fair market value or (ii) such
holder's purchase price (if the stock was purchased within one year of such
redemption). Other than redemption where necessary to protect Metrocall's
regulatory licenses, there are no redemption or sinking fund provisions
applicable to the Metrocall Common Stock.
 
     The Metrocall Certificate provides that all actions taken by Metrocall
stockholders must be taken at an annual or special meeting of stockholders or by
unanimous written consent. The Metrocall By-laws provide that special meetings
of the stockholders may be called only by a majority of the members of the Board
of Directors, the Chairman or the holders of not less than 35% of the voting
stock of Metrocall. Stockholders are required to comply with certain advance
notice provisions with respect to any nominations of candidates for election to
Metrocall's Board of Directors or other proposals submitted for stockholder
vote. The Metrocall Certificate and the Metrocall By-laws contain certain
provisions requiring the affirmative vote of the holders of at least two-thirds
of the Metrocall Common Stock to amend certain provisions of the Metrocall
Certificate and the Metrocall By-laws.
 
     The Metrocall Certificate provides for the division of the members of the
Board of Directors elected by holders of Metrocall Common Stock into three
classes of directors serving staggered three-year terms. The authorized number
of directors may be changed only by resolution of the Board of Directors, and
directors may not be removed without cause.
 
                                       49
<PAGE>   61
 
     Provisions of the Metrocall Certificate and the Metrocall By-laws could
operate to delay, defer or prevent a change of control in the event of certain
transactions such as a tender offer, merger or sale or transfer of substantially
all of Metrocall's assets. These provisions, as described below, are expected to
discourage certain types of coercive takeover practices and inadequate takeover
bids and to encourage persons seeking to acquire control of Metrocall first to
negotiate with Metrocall. Metrocall believes that the benefits of increased
protection of Metrocall's potential ability to negotiate with the proponent of
an unfriendly or unsolicited proposal to acquire or restructure Metrocall
outweigh the disadvantages of discouraging such proposal because, among other
things, negotiating with respect to such proposals could result in an
improvement of their terms.
 
     Metrocall is subject to the provisions of Section 203. Under Section 203, a
resident domestic corporation may not engage in a business combination with an
interested stockholder for a period of three years after the date such person
became an interested stockholder, unless (i) prior to such date the board of
directors approved either the business combination or the transaction which
resulted in the stockholder becoming an interested stockholder, (ii) upon
consummation of the transaction which resulted in the stockholder becoming an
interested stockholder, the interested stockholder owned at least 85% of the
corporation's voting stock outstanding at the time the transaction commenced
(excluding for purposes of determining the number of shares outstanding those
shares owned by (x) persons who are directors and officers and (y) employee
stock plans, in certain instances), or (iii) on or subsequent to such date the
business combination is approved by the board of directors and authorized by the
affirmative vote of at least two-thirds of the outstanding voting stock which is
not owned by the interested stockholder. Section 203 defines the term "business
combination" to encompass a wide variety of transactions with or caused by an
interested stockholder in which the interested stockholder receives or could
receive a benefit on other than a pro rata basis with other stockholders,
including certain mergers, consolidations, asset sales, transfers and other
transactions resulting in a beneficial interest to the interested stockholder.
"Interested stockholder" means a person who owns (or within three years prior,
did own) 15% of more of the corporation's outstanding voting stock, and the
affiliates and associates of such person.
 
     The Metrocall Certificate authorizes its Board of Directors, when
considering a tender offer, merger or acquisition proposal, to take into account
factors in addition to potential economic benefits to stockholders, including,
but not limited to, (i) a comparison of the proposed consideration to be
received by the stockholders in relation to the then current market price of the
capital stock, the estimated current value of Metrocall in a freely negotiated
transaction and the estimated future value of Metrocall as an independent
entity, and (ii) the impact of such a transaction on the subscribers, suppliers
and employees of Metrocall, and its effect on the communities in which Metrocall
operates.
 
     The Metrocall Certificate prohibits Metrocall from purchasing any shares of
Metrocall's stock from any person, entity or group that beneficially owns five
percent or more of Metrocall's stock at a price exceeding the average closing
price for the 20 business days prior to the purchase date, unless a majority of
Metrocall's disinterested stockholders approve the transaction, or as may be
necessary to protect Metrocall's regulatory licenses. This restriction on
purchases by Metrocall does not apply to any offer to purchase shares of a class
of Metrocall's stock which is made on the same terms and conditions to all
holders of that class of stock, to any purchase of stock owned by such a
five-percent stockholder occurring more than two years after such stockholder's
last acquisition of Metrocall's stock, to any purchase of Metrocall's stock in
accordance with the terms of any stock option or employee benefit plan or to any
purchase at prevailing market prices pursuant to a stock purchase program.
 
     Metrocall's Board of Directors has approved and recommended that the
stockholders approve the Charter Amendment, which provides for an amendment to
the Metrocall Certificate increasing the number of shares of Metrocall Common
Stock to 80,000,000 shares. The Charter Amendment will be submitted to the
stockholders for approval in connection with the Merger.
 
                                       50
<PAGE>   62
 
SERIES A PREFERRED STOCK
 
     The following summary of the designations, rights and preferences of the
Series A Preferred Stock sets forth the material terms of the Series A Preferred
Stock, but is not a complete description of its terms. This summary is qualified
in its entirety by reference to the Certificate of Designation, Number, Powers,
Preferences and Relative, Participating, Optional and Other Rights (the "Series
A Certificate of Designation") of the Series A Preferred Stock, which is filed
as an exhibit to documents incorporated herein by reference. See "INCORPORATION
OF CERTAIN INFORMATION BY REFERENCE."
 
     Each share of Series A Preferred Stock has a stated value of $250 per
share. Each share has a liquidation preference over shares of Metrocall Common
Stock equal to the stated value plus accrued and unpaid dividends to the date of
liquidation. The Series A Preferred Stock carries a dividend of 14% of the
stated value per year, payable semi-annually in cash or in additional shares of
Series A Preferred Stock, at Metrocall's option. Upon the occurrence of a
"Triggering Event" and so long as the Triggering Event continues, the dividend
rate increases to 16% per year. "Triggering Events" include, among other things,
(i) Metrocall's issuing or incurring indebtedness or equity securities senior
with respect to payment of dividends or distributions on liquidation or
redemption to the Series A Preferred Stock in violation of limitations set forth
in the Series A Certificate of Designation, and (ii) default on the payment of
indebtedness of Metrocall in an amount of $5,000,000 or more.
 
     Holders of Series A Preferred Stock have the right, beginning on November
15, 2001, to convert their Series A Preferred Stock (including shares issued as
dividends) into shares of Metrocall Common Stock based on the market price of
Metrocall Common Stock at the time of conversion. Series A Preferred Stock may,
at the option of holders, be converted sooner upon a change of control of
Metrocall, as defined in the Series A Certificate of Designation. The Series A
Preferred Stock must be redeemed on November 15, 2008 for an amount equal to the
stated value plus accrued and unpaid dividends.
 
     The Series A Preferred Stock may also be redeemed by Metrocall in whole or
in part (subject to certain minimums) beginning November 15, 1999. Prior to
then, the Series A Preferred Stock may be redeemed by Metrocall in whole in
connection with a sale of Metrocall (as described in the Series A Certificate of
Designation) unless the holders have exercised their rights to convert to
Metrocall Common Stock in connection with the transaction. The redemption price
prior to November 15, 2001, is equal to the stated value of the shares of Series
A Preferred Stock, plus accrued and unpaid dividends, and a redemption premium.
The redemption premium to be received by a holder for its shares would be
calculated as the excess, if any, of the amount that would provide a specified
internal rate of return on the holder's purchase price of $250 per unit for the
shares of Series A Preferred Stock and Warrants it initially acquired, over (i)
the stated value of shares received as dividends in respect of the shares
originally issued (including dividends on such dividends) plus (ii) except for
redemptions prior to November 15, 1997, the excess of the then-current market
price of Metrocall Common Stock over the exercise price of the shares of
Metrocall Common Stock represented by the Warrants issued in conjunction with
the shares originally issued. The applicable internal rates of return are 20%
for redemptions on and after November 15, 2000 and before November 15, 2001; 25%
for redemptions on and after November 15, 1999 and before November 15, 2000; and
30% for redemptions before November 15, 1999 except that, for redemptions prior
to November 15, 1997, the redemption premium will be calculated so that holders
receive a rate of return of 30% as though the shares were held through November
15, 1997 without including the excess of the market price of Metrocall Common
Stock over the exercise under the Warrants in calculating the redemption
premium. After November 15, 2001, the Series A Preferred Stock may be redeemed
for the stated value of $250 per share, plus accrued and unpaid dividends,
without premium. Metrocall may not exercise its redemption right between
November 15, 2001, and January 15, 2002 or with respect to any shares as to
which the holders have delivered a notice of conversion into Metrocall Common
Stock.
 
     Holders of the Series A Preferred Stock have the right to elect two
directors of Metrocall. One such director is to be chosen by one of the initial
three purchasers of the Series A Preferred Stock (or subsequent holders of a
majority of shares initially issued to such purchaser) and the other is to be
chosen by the other two initial purchasers (or subsequent holders of a majority
of shares initially issued to such purchaser). If a
 
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<PAGE>   63
 
Triggering Event has occurred and is continuing, the holders of Series A
Preferred Stock shall have the right to elect an additional number of directors
so that such directors shall constitute no less than 40% of the members of the
Board of Directors. Metrocall also is required to obtain approval of holders of
not less than 75% of the issued and outstanding Series A Preferred Stock before
undertaking: (i) any changes in the Metrocall Certificate and Bylaws that
adversely affect the rights of holders of the Series A Preferred Stock, (ii) a
liquidation, winding up or dissolution of Metrocall or the purchase of shares of
capital stock of Metrocall from holders of over 5% of the issued and outstanding
voting securities of Metrocall, (iii) any payment of dividends or redemption on
Metrocall Common Stock; or (iv) issuance of any additional shares of Series A
Preferred Stock (except in payment of dividends) or any shares of capital stock
having preferences on liquidation or dividends that are equal to the Series A
Preferred Stock. Metrocall is also required to obtain approval of holders of not
less than a majority of the issued and outstanding Series A Preferred Stock
before undertaking: (i) any acquisition involving consideration having a value
equal to or greater than 50% of the market capitalization of Metrocall at the
time of such acquisition, or (ii) any sale of Metrocall unless Metrocall redeems
the Series A Preferred Stock as described above.
 
     Metrocall has agreed to register under the Securities Act of 1933 the
resale of shares that may be obtained upon conversion of Series A Preferred
Stock. The obligation to register does not arise until the shares may be
converted, and Metrocall is required to use its bets efforts to maintain the
effectiveness of the registration until such time as all the shares of Metrocall
Common Stock acquired upon conversion of the Series A Preferred Stock either
have been transferred pursuant to the registration or are eligible to be sold
pursuant to Rule 144 under the Securities Act of 1933 without regard to any
restrictions pursuant to Rule 144(k).
 
SERIES B PREFERRED STOCK
 
     The following summary of the designations, rights and preferences of the
Series B Preferred Stock sets forth the material terms of the Series B Preferred
Stock, but is not a complete description of its terms. This summary is qualified
in its entirety by reference to the Certificate of Designation, Number, Powers,
Preferences and Relative, Participating, Optional and Other Rights (the "Series
B Certificate of Designation") of the Series B Preferred Stock, which is filed
as an exhibit to documents incorporated herein by reference. See "INCORPORATION
OF CERTAIN INFORMATION BY REFERENCE."
 
     Each share of Series B Preferred Stock has a Stated Value of $10,000 per
share. Each share has a liquidation preference equal to its Stated Value, which
is junior to the Series A Preferred Stock but senior to shares of Metrocall
Common Stock. The Series B Preferred Stock carries a dividend of 14% of the
Stated Value per year, payable semi-annually in cash or in additional shares of
Series B Preferred Stock, at Metrocall's option.
 
     Beginning on each of September 1, 1997, December 1, 1997, March 1, 1998 and
June 1, 1998, the holders of Series B Preferred Stock have the right to convert
up to 25% of the number of Series B Preferred Stock initially issued (plus
shares of Series B Preferred Stock issued as dividends on such shares, and as
dividends on such dividends) into that number of shares of Common Stock equal to
the Stated Value divided by the average of the closing price of the Metrocall
Common Stock for the 10 trading days prior to each conversion date. The
conversion price will be subject to adjustment based on stock splits, stock
dividends, issuance of securities below current market price and other events.
 
     The Series B Preferred Stock must be redeemed on the twelfth anniversary of
the initial issuance for an amount equal to the Stated Value, plus accrued and
unpaid dividends. The Series B Preferred Stock may also be redeemed by Metrocall
in whole or in part at any time for an amount equal to the Stated Value of the
shares to be redeemed plus accrued and unpaid dividends. If Metrocall elects to
redeem Series B Preferred Stock, the holders thereof will have the right to
convert any Series B Preferred Stock which was then convertible into Metrocall
Common Stock within 15 business days after receipt of notice of redemption.
 
     Metrocall is required to obtain the approval of holders of a majority of
the issued and outstanding Series B Preferred Stock before undertaking: (i) any
changes in the Metrocall Certificate and By-Laws that adversely affect the
rights of the holders of Series B Preferred Stock; and (ii) any changes in the
Series B
 
                                       52
<PAGE>   64
 
Certificate of Designation. The Series B Preferred Stock also contains
restrictions on the ability of Metrocall to incur any debt or issue securities
(other than the Series A Preferred Stock) which are senior to the Series B
Preferred Stock.
 
WARRANTS
 
     Metrocall has issued 159,600 Warrants to purchase Metrocall Common Stock.
Each Warrant represents the right of the holder to purchase 18.266 shares of
Metrocall Common Stock, or an aggregate of approximately 2.9 million shares. The
exercise price per share is $7.40. The Warrants contain certain provisions for
adjustment in the exercise price in the event that, in a private transaction,
Metrocall issues Metrocall Common Stock for a price that is less than 80% of the
then-current exercise price, or options, warrants, or other securities
convertible into or exchangeable for Metrocall Common Stock with an exercise
price which is less than the then-current exercise price of Warrants. In
addition, the Warrants contain certain customary anti-dilution provisions
requiring adjustment in the exercise price and the number of shares for which
the Warrants are exercisable in certain circumstances. The Warrants expire
November 15, 2001. Metrocall has registered under the Securities Act of 1933 the
resale of shares that may be obtained upon exercise of the Warrants.
 
INDEXED VARIABLE COMMON RIGHTS
 
     Approximately 8.1 million indexed variable common rights ("VCRs") are
outstanding. Each VCR represents the right to receive payment of up to $5 in
Metrocall Common Stock or cash, at Metrocall's option, if the trading price of
Metrocall shares at November 15, 1997, is less than a target price initially set
at $21.10. The target price will be indexed downward, but not above, the initial
target price of $21.10, based on changes in the average trading prices of Arch
Communications Group, Inc., Mobile Media Communications, Inc., and ProNet, Inc.
since the announcement of the merger with A+ Network. If changes in the index
cause the target price to fall below a floor price of $16.10 (which is not
indexed), the VCR payment will be zero regardless of the price at which
Metrocall shares are trading. As of September 19, 1997, the target price was
below $16.10, and no payment on the VCRs would be made if they had expired on
that date. Metrocall has the right to extend the maturity date of the VCRs for
an additional year, in which event the target price and the amount of the
potential VCR payment would increase.
 
                  COMPARATIVE RIGHTS OF METROCALL STOCKHOLDERS
                            AND PRONET STOCKHOLDERS
 
     If the Merger is approved, ProNet stockholders, whose rights are currently
governed by the DGCL, the Restated Certificate of Incorporation of ProNet and
the Restated Bylaws of ProNet (the "ProNet Certificate" and "ProNet Bylaws,"
respectively), will become stockholders of Metrocall, a Delaware corporation.
Accordingly, immediately after the consummation of the Merger, their rights will
be governed by the DGCL, the Metrocall Certificate, and the Metrocall Bylaws.
 
     Certain differences in stockholder rights arise from differences in the
ProNet Certificate and the ProNet Bylaws and the Metrocall Certificate and the
Metrocall Bylaws. The following discussion is a summary of the significant
differences in stockholder rights, but is not intended to be a complete
statement of all differences and is qualified in its entirety by reference to
the respective corporate documents of ProNet and Metrocall.
 
AUTHORIZED CAPITAL STOCK
 
     Metrocall.  The authorized capital stock of Metrocall currently consists of
60,000,000 shares of Metrocall Common Stock, and 1,000,000 shares of the
Metrocall Preferred Stock, of which 810,000 shares have been designated as
Series A Preferred Stock and 9,000 shares have been designated as Series B
Preferred Stock. All shares of Metrocall Common Stock are entitled to one vote
per share. See "DESCRIPTION OF METROCALL CAPITAL STOCK -- Common Stock."
Pursuant to this Joint Proxy Statement/Prospectus, Metrocall is seeking
stockholder approval for the Charter Amendment, which will increase the number
of authorized shares of Metrocall Common Stock to 80,000,000 shares.
 
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<PAGE>   65
 
     ProNet.  The authorized capital stock of ProNet currently consists of
20,000,000 shares of ProNet Common Stock, 5,000,000 shares of preferred stock,
par value $1.00 per share (the "Preferred Stock"), and 1,000,000 shares of
Series A Junior Participating Preferred Stock, par value $1.00 per share
("ProNet Series A Preferred Stock," and together with the Preferred Stock,
"ProNet Preferred Stock"). No shares of ProNet Preferred Stock are currently
outstanding. All shares of ProNet Common Stock are entitled to one vote per
share.
 
PREFERRED STOCK
 
     Metrocall.  For a description of the Metrocall Preferred Stock, see
"DESCRIPTION OF METROCALL CAPITAL STOCK -- Series A Preferred Stock; -- Series B
Preferred Stock." The terms of the Metrocall Preferred Stock, including dividend
rates, conversion prices, voting rights, redemption prices, maturity dates and
similar matters, are determined by the Metrocall Board of Directors.
 
     ProNet.  The ProNet Certificate authorizes the issuance of 5,000,000 shares
of ProNet Preferred Stock. 150,000 shares of ProNet Preferred Stock have been
designated as ProNet Series A Preferred Stock in connection with the adoption of
the ProNet Stockholder Rights Plan. See "-- Stockholder Rights Plan." Currently,
no such shares are outstanding. The terms of the ProNet Preferred Stock,
including dividend rates, conversion prices, voting rights, redemption prices,
maturity dates and similar matters, are determined by the ProNet Board of
Directors.
 
PREEMPTIVE RIGHTS
 
     Under the DGCL, security holders of a corporation have only such preemptive
rights as may be provided in the corporation's certificate of incorporation.
Neither the Metrocall Certificate nor the ProNet Certificate grants any such
preemptive rights to security holders.
 
ACTION BY WRITTEN CONSENT OF STOCKHOLDERS
 
     Delaware Law.  Under the DGCL, unless otherwise provided in a corporation's
certificate of incorporation, any action that may be taken at any annual or
special meeting of stockholders may be taken without a meeting and without prior
notice, if a consent in writing, setting forth the action so taken, is signed by
the holders of outstanding shares having not less than the minimum number of
votes that would be necessary to authorize or take such action at a meeting at
which all shares entitled to vote thereon were present and voted. All such
consents must be signed and delivered to the corporation within sixty days after
the earliest date such consent is delivered to the corporation.
 
     Metrocall.  The Metrocall Bylaws provide that any action required or
permitted to be taken by the stockholders must be effected at a duly called
annual or special meeting of stockholders, and may not be effected by any
consent in writing by such stockholders, unless such written consent is
unanimous, and the writings are delivered to Metrocall for inclusion in its
minute book.
 
     ProNet.  The ProNet Bylaws provide that any action required or permitted to
be taken at any annual or special meeting of stockholders may be taken without a
meeting, if a written consent setting forth such action shall be signed by the
holders of record of outstanding stock having not less than the minimum number
of votes that would be necessary to authorize such action at a meeting at which
all shares entitled to vote thereon were present and voted. All written consents
must bear the date of the signature of each stockholder who signs the consent
and no written consent shall be effective to take the corporate action referred
to therein unless, within sixty days of the earliest dated consent delivered to
ProNet, written consents signed by a sufficient number of holders to take action
are delivered to ProNet at such places required.
 
VOTING REQUIREMENTS AND QUORUM FOR STOCKHOLDER MEETINGS
 
     Delaware Law.  Under the DGCL, a majority of the issued and outstanding
stock entitled to vote at any meeting of stockholders shall constitute a quorum
for the transaction of business at such meeting, unless the certificate of
incorporation or bylaws specifies a different percentage, but in no event may a
quorum consist of
 
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<PAGE>   66
 
less than one-third of the shares entitled to vote at the meeting. Under the
DGCL, the affirmative vote of the majority of shares present in person or
represented by proxy at a duly held meeting at which a quorum is present and
entitled to vote on the subject matter is deemed to be the act of the
stockholders, unless the DGCL, the certificate of incorporation or the bylaws
specify a different voting requirement.
 
     Metrocall.  The Metrocall Bylaws provide that, except as otherwise provided
by the DGCL or by the Metrocall Certificate, the holders of a majority of the
stock issued and outstanding and entitled to vote at a meeting, and, who are
present in person or represented by proxy, shall constitute a quorum at all
meetings of the stockholders for the transaction of business. If a quorum
exists, action on a matter (other than the election of directors) is approved if
the votes cast for the action exceed the votes cast against the action, unless
the Metrocall Certificate or the DGCL requires a greater number of affirmative
votes.
 
     ProNet.  The ProNet Bylaws provide that, except as otherwise provided in
the ProNet Certificate, the holders of a majority of the shares entitled to vote
at a meeting represented in person or by proxy, shall constitute a quorum at
such meeting. The ProNet Bylaws further state that if a quorum is present, the
vote by a majority of the shares entitled to vote, shall be the act of the
stockholders meeting unless the ProNet Certificate or the DGCL requires a higher
percentage of affirmative votes.
 
BUSINESS CONDUCTED AT STOCKHOLDER MEETINGS; PROPOSALS
 
     Metrocall.  The Metrocall Bylaws provide that an annual meeting of the
stockholders, only such business shall be conducted as shall have been properly
brought before the meeting. To be properly brought before an annual meeting,
business must be (a) specified in the notice of meeting (or any supplement
thereto) given by or at the direction of the Metrocall Board of Directors, (b)
otherwise properly brought before the meeting by or at the direction of the
Metrocall Board of Directors or (e) otherwise properly brought before the
meeting by a stockholder.
 
     For business to be properly brought before an annual meeting by a
stockholder, the stockholder must have given timely notice thereof in writing to
the secretary of Metrocall. To be timely, a stockholder's notice must be
received at the principal executive offices of Metrocall no later than the date
designated for receipt of stockholders' proposals in a prior public disclosure
made by Metrocall. If there has been no such prior public disclosure, then to be
timely, a stockholder's notice must be delivered to or mailed and received at
the principal executive offices of Metrocall not less than sixty days nor more
than ninety days prior to the annual meeting; provided, however, that in the
event that less than seventy days' notice of the date of this annual meeting is
given to stockholders or prior public disclosure of the date of the meting is
made, notice by the stockholder to be timely must be so received not later than
the close of business on the 10th day following the date on which such notice of
the date of the annual meeting was mailed or such public disclosure was made. A
stockholder's notice to the secretary shall set forth as to each matter the
stockholder proposes to bring before the annual meeting (i) a brief description
of the business desired to be brought before the annual meeting and the reason
for conducting such business at the annual meeting, (ii) the name and address,
as they appear on Metrocall's books, of the stockholder proposing such business,
(iii) the class and number of shares of Metrocall which are beneficially owned
by the stockholder, (iv) any material interest of the stockholder in such
business and (v) the same information required by clauses (ii), (iii) and (iv)
above with respect to any other stockholder that, to the knowledge of the
stockholder proposing such business, supports such proposal. The chairman of an
annual meeting shall, if the facts warrant, determine and declare to the annual
meeting that a matter of business was not properly brought before its meeting in
accordance with the Metrocall Bylaws, and if the chairman should so determine,
the chairman shall so declare to the meeting and any such business not properly
brought before the meeting shall not be transacted.
 
     ProNet.  The ProNet Bylaws provide that at an annual meeting or special
meeting of the stockholders, only such business shall be conducted as shall have
been brought before the meeting (i) by or at the direction of the ProNet Board
of Directors or (ii) by any stockholder of ProNet entitled to vote at such
annual or special meeting who complies with the notice procedures. For business
to be properly brought before an annual or special meeting by a stockholder, the
stockholder must have given timely notice thereof in writing to the secretary of
ProNet. To be timely, a stockholder's notice must be received at the principal
executive offices
 
                                       55
<PAGE>   67
 
of ProNet not less than sixty days prior to the meeting; provided, however, that
if less than forty days' notice or prior public disclosure of the date of the
meeting is given to the stockholders, notice by the stockholder to be timely
must be received not later than the close of business on the 10th day following
the day on which such notice of the date of the annual or special meeting was
mailed or such public disclosure was made. Such stockholder's notice to the
secretary shall set forth as to each matter the stockholder proposes to bring
before the annual or special meeting (i) a brief description of the business
desired to be brought before the annual or special meeting and the reasons for
conducting such business at the annual or special meeting; (ii) the name and
address, as they appear on ProNet's books, of such stockholder; (iii) the class
and number of shares of ProNet that are beneficially owned by such stockholder;
and (iv) any material interest of such stockholder in such business. The
chairman of an annual or special meeting shall, if the facts warrant, determine
that business was not properly brought before the meeting in accordance with the
ProNet Bylaws and so declare to the meeting and any such business not properly
brought before the meeting shall not be transacted. Notwithstanding the
foregoing provisions, a stockholder seeking to have a proposal included in the
corporation's proxy statement shall comply with the requirements of Regulation
14A under the Exchange Act (including, but not limited to, Rule 14a-8 or its
successor provision).
 
RIGHTS OF STOCKHOLDERS TO CALL SPECIAL MEETINGS
 
     Delaware Law.  The DGCL provides that special meetings of stockholders may
be called by the board of directors and by such other person or persons
authorized to do so by the corporation's certificate of incorporation or bylaws.
 
     Metrocall.  Pursuant to the Metrocall Bylaws, special meetings of
stockholders of Metrocall may be called by either (a) the chairman, (b) a
majority of directors in office, whether or not a quorum, or (c) stockholders
holding not less than 85% of the total number of votes of the then outstanding
shares of stock of Metrocall entitled to vote generally in the election of
directors. Business transacted at any special meeting of stockholders is limited
to the purposes stated in the notice.
 
     ProNet.  Pursuant to the ProNet Bylaws, special meetings of the
stockholders of ProNet may be called by either (a) the Chief Executive Officer,
(b) the President, or (c) the ProNet Board of Directors.
 
BOARD OF DIRECTORS
 
     Delaware Law.  Under the DGCL, the minimum number of directors is one. The
DGCL permits the board of directors to change the authorized number or the range
of directors by amendment to the bylaws, unless the directors are not authorized
in the certificate of incorporation to amend the bylaws or the number of
directors is fixed in the certificate of incorporation, in which case a change
in the number of directors may be made only upon approval of such change by the
stockholders. The DGCL permits, but does not require, a classified board of
directors, with staggered terms under which one-half to one-third of the
directors elected by a class of voting stock are elected for terms of two or
three years, respectively.
 
     Metrocall.  The Metrocall Bylaws provide for a variable number of directors
between three and eleven, with the number currently fixed by the Metrocall Board
of Directors at eleven. Nine members of the Metrocall Board of Directors are
elected by the holders of Metrocall Common Stock and are divided into three
classes, with the three-year term of each class expiring in a different year.
The holders of Series A Preferred Stock are entitled to elect two members and in
certain circumstances may be entitled to elect additional members. See
"DESCRIPTION OF METROCALL CAPITAL STOCK -- Series A Preferred Stock." Pursuant
to the Merger Agreement, the number of Metrocall directors will be increased to
fourteen, with one director added to each class elected by the Common Stock to
fourteen. Neither the Metrocall Certificate nor the Metrocall Bylaws set forth
specific qualification requirements for directors.
 
     ProNet.  The ProNet Certificate provides that the number of directors of
ProNet will be determined by the ProNet Board of Directors. The size of the
ProNet Board of Directors is currently set at six members. The members of the
ProNet Board of Directors are not divided into classes and hold office until a
director's successor is elected and qualified. Neither the ProNet Certificate
nor the ProNet Bylaws set forth specific requirements regarding the
qualification or number of directors.
 
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<PAGE>   68
 
NOMINATION AND ELECTION OF DIRECTORS
 
     Metrocall.  The Metrocall Bylaws provide that, except as otherwise provided
in the Metrocall Bylaws, directors elected by the holders of Metrocall Common
Stock are elected only by stockholders at an annual meeting of stockholders and
by a plurality of the votes cast by the shares entitled to vote in the election
(provided a quorum exists). The Metrocall Bylaws provide that, except as
otherwise provided in the Metrocall Bylaws, nominations of persons for election
by the holders of Metrocall Common Stock to the Metrocall Board of Directors may
be made by the Metrocall Board of Directors, or by any stockholder of Metrocall
entitled to vote for the election of directors at the annual meeting who
complies with the notice procedures set forth in the Metrocall Bylaws.
Nominations by stockholders shall be made pursuant to timely notice in writing
to the secretary of Metrocall. To be timely, a stockholder's notice shall be
received at the principal executive offices of Metrocall no later than the date
designated for receipt of stockholders' proposals in a prior public disclosure
made by Metrocall. If there has been no such prior public disclosure, then to be
timely, a stockholders nomination must be delivered to or mailed and received at
the principal executive offices of Metrocall not less than sixty days nor more
than ninety days prior to the annual meeting; provided, however, that in the
event that less than seventy days' notice of the date of the meeting is given to
stockholders or prior public disclosure of the date of the meeting is made,
notice by the stockholder to be timely must be so received not later than the
close of business on the 10th day following the day on which such notice of the
date of the annual meeting was mailed or such public disclosure was made. Such
stockholder's notice shall set forth (a) as to each person whom the stockholder
proposes to nominate for election or reelection as a director, (i) the name,
age, business address and residence address of such person, (ii) the principal
occupation or employment of such person, (iii) the class and number of shares of
Metrocall which are beneficially owned by such person, and (iv) any other
information relating to such person that is required to be disclosed in
solicitations of proxies for election of directors, or is otherwise required, in
each case pursuant to Regulation 14A under the Exchange Act (including without
limitation such person's written consent to being named in the proxy statement
as a nominee and to serving as a director if elected); and (b) as to the
stockholder giving notice (i) the name and address, as they appear on
Metrocall's books, of the stockholder proposing such nomination, and (ii) the
class and number of shares of Metrocall which are beneficially owned by the
stockholder. No person shall be eligible for election as a director of Metrocall
unless nominated in accordance with the procedures set forth in the Metrocall
Bylaws. The chairman of the meeting shall, if the facts warrant, determine and
declare to the annual meeting that a nomination was not made in accordance with
the Metrocall Bylaws, and if the chairman should so determine, the chairman
shall so declare to the meeting and the defective nomination shall be
disregarded.
 
     ProNet.  The ProNet Bylaws provide that the directors shall be elected at
the annual meeting of the stockholders, except as otherwise provided in the
ProNet Bylaws, and shall be elected by a plurality of the votes of the shares
present in person or represented by proxy at such meeting which are entitled to
vote on the election of directors.
 
REMOVAL OF DIRECTORS
 
     Delaware Law.  The DGCL allows any director or the entire board of
directors to be removed, with or without cause, by the vote of holders of a
majority of the shares entitled to vote. A director of a corporation with a
classified board of directors, however, can be removed only for cause, unless
the certificate of incorporation provides otherwise.
 
     The DGCL provides that unless otherwise provided in the certificate of
incorporation or bylaws, vacancies, including those due to removal without
cause, and newly created directorships may be filed by a majority vote of the
directors then in office, even if the number of directors then in office is less
than a quorum, or by a sole remaining director. In addition, if, at the time of
filling any vacancy of newly created directorship the directors then in office
constitute less than a majority of the whole board, the Delaware Court of
Chancery may, upon application of stockholders holding at least 10% of the
shares outstanding at the time and entitled to vote, summarily order an election
to be held to fill any such vacancies or newly created directorships, or to
replace the directors chosen by the directors then in office. Such elections are
to be conducted in accordance with the procedures provided by the DGCL for
holding stockholder meetings.
 
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<PAGE>   69
 
     Metrocall.  Pursuant to the Metrocall Certificate, directors of Metrocall
may be removed from office at any time, but only for cause at a special meeting
called for such purpose and only upon the affirmative vote of 66 2/3% of the
total number of votes of the then outstanding shares of stock of Metrocall
entitled to vote generally in the election of directors.
 
     The Metrocall Bylaws provide that, except as otherwise provided therein,
vacancies and newly created directorships resulting from any increase in the
authorized number of directors shall be filled, for the unexpired term, by the
concurring vote of a majority of the directors then in office, whether or not a
quorum, and any director so chosen shall hold office for the remainder of the
full term of the class of directors in which the new directorship was created or
the vacancy occurred and until such director's successor shall have been elected
and qualified or until such director's earlier death, resignation or removal.
 
     ProNet.  Pursuant to the ProNet Bylaws, at any meeting of stockholders
called expressly for the purpose of removing a director, a director of ProNet
maybe removed, with or without cause, by a vote of the holders of a majority of
the shares then entitled to vote at an election of directors.
 
     The ProNet Bylaws provide that any vacancy occurring in the ProNet Board of
Directors may be filled by the affirmative vote of a majority of the remaining
directors, even though less than a quorum. A director elected to fill a vacancy
shall be elected for the unexpired term of his predecessor in office. Any
directorship to be filled by reason of an increase in the number of directors
may be filled by the affirmative vote of a majority of the directors.
 
INDEMNIFICATION AND LIMITATIONS ON MANAGEMENT'S LIABILITY
 
     Delaware Law.  Under the DGCL, a corporation has the power to indemnify any
agent against expenses, judgments, fines and settlements incurred in a
proceeding, other than an action by or in the right of the corporation, if the
person acted in good faith and in a manner that the person reasonably believed
to be in the best interests of the corporation or not opposed to the best
interests of the corporation, and, in the case of a criminal proceeding, had no
reason to believe the conduct of the persons was unlawful. In the case of an
action by or in the right of the corporation, the corporation has the power to
indemnify any agent against expenses incurred in defending or settling the
action if such person acted in good faith and in a manner such person reasonably
believed to be in or not opposed to the best interests of the corporation;
provided, however, that no indemnification may be made when a person is adjudged
liable to the corporation, unless a court determines such person is entitled to
indemnity for expenses, and then such indemnification may be made only to the
extent that such court shall determine. The DGCL requires that to the extent an
agent of a corporation is successful on the merits or otherwise in defense of
any third-party or derivative proceeding, or in defense of any claim, or matter
therein, the corporation must indemnify the agent against expenses incurred in
connection therewith.
 
     Under the DGCL, a corporation may adopt a provision in its certificate of
incorporation eliminating or limiting the personal liability of a director to
the corporation or its stockholders for monetary damages for breach of fiduciary
duty as a director; provided, however, that such provision may not eliminate or
limit director monetary liability for: (i) breaches of the director's duty of
loyalty to the corporation or its stockholders; (ii) acts or omissions not in
good faith or involving intentional misconduct or knowing violations of law;
(iii) the payment of unlawful dividends or unlawful stock repurchases or
redemptions; or (iv) transactions in which the director received an improper
personal benefit.
 
     Metrocall.  The Metrocall Certificate contains a provision mirroring the
DGCL provisions described above.
 
     ProNet.  The ProNet Certificate and ProNet Bylaws provide that ProNet will
indemnify its directors, officers and employees to the fullest extent permitted
by law.
 
     ProNet has entered into indemnity agreements with certain directors and
executive officers, providing for indemnification and advancement of expenses.
The indemnity agreements provide for certain limitations on indemnification
including the limitations stated above.
 
                                       58
<PAGE>   70
 
AMENDMENT OF CERTIFICATE OF INCORPORATION; AMENDMENT OF BYLAWS
 
     Delaware Law.  Under the DGCL, an amendment to a corporation's certificate
of incorporation requires the approval of the board of directors and the
approval of a majority of the outstanding stock of each class entitled to vote
thereon. Under the DGCL, the holders of the outstanding shares of a class are
entitled to vote as a class on a proposed amendment that would increase or
decrease the aggregate number of authorized shares of such class, increase or
decrease the par value of the shares of such class or alter or change the
powers, preferences or special rights of the shares of such class so as to
affect them adversely. Under the DGCL, a provision in a corporation's
certificate of incorporation requiring a super-majority vote of the board of
directors or stockholders may be amended only by such super-majority vote. Under
the DGCL, an amendment to a corporation's bylaws requires the approval of the
stockholders entitled to vote. The certificate of incorporation may confer the
power to amend the bylaws upon the board of directors, but the stockholders are
not divested of their power to amend the bylaws.
 
     Metrocall.  The Metrocall Certificate provides that, to amend the Metrocall
Certificate in certain respects, the affirmative vote of 66 2/3% of the total
number of votes of the then outstanding shares of capital stock of Metrocall
entitled to vote generally in the election of directors, voting together as a
single class, is required. In addition, the approval of 75% of all outstanding
shares of Series A Preferred Stock and a majority of all outstanding shares of
Series B Preferred Stock are required to amend the Metrocall Certificate in
certain respects. Notice of any such proposed amendment, repeal or adoption
shall be contained in the notice of the meeting at which it is to be considered.
 
     The Metrocall Certificate provides that the Metrocall Board of Directors is
authorized and empowered to adopt, amend and repeal the Metrocall Bylaws,
subject to the right of the stockholders entitled to vote to amend or repeal the
Metrocall Bylaws adopted by the Metrocall Board of Directors and, in particular,
subject to the approval of 75% of all outstanding shares of Series A Preferred
Stock and a majority of all outstanding shares of Series B Preferred Stock for
adoption, amendment or repeal of certain Metrocall Bylaws. See "DESCRIPTION OF
METROCALL CAPITAL STOCK -- Series A Preferred Stock; -- Series B Preferred
Stock." As set forth in the Metrocall Bylaws, for the Metrocall Board to adopt,
amend or repeal the Metrocall Bylaws, such action requires the affirmative vote
of at least a majority of the directors then in office. If stockholders are
entitled to vote to amend or repeal the Metrocall Bylaws, the affirmative vote
of 66 2/3% of the total number of votes of the then outstanding shares of
capital stock of Metrocall entitled to vote generally in the election of
directors, shall be required for the amendment or repeal of the Metrocall Bylaws
by the stockholders of Metrocall.
 
     ProNet.  The ProNet Certificate does not provide for its amendment. Thus,
the general provisions of the DGCL apply. To amend the ProNet Bylaws, the ProNet
Certificate grants the ProNet Board of Directors the authority to amend or
repeal the ProNet Bylaws by the affirmative vote of a majority of the ProNet
Board of Directors at any regular or special meeting of the ProNet Board of
Directors, subject to repeal or change at any regular or special meeting of
stockholders at which a quorum is present by the affirmative vote of not less
than a majority of the shares entitled to vote at such meeting and present or
represented thereat, voting together as a single class, provided notice of the
proposed repeal or change is contained in the notice of such meeting of
stockholders.
 
DIVIDENDS AND OTHER DISTRIBUTIONS
 
     Delaware Law.  The DGCL permits a corporation to declare and pay dividends
out of surplus (defined as net assets minus capital) or, if there is no surplus,
out of net profits for the fiscal year in which the dividend is declared and/or
for the preceding fiscal year. Dividends out of net profits may not be paid when
the capital of the corporation following the declaration and payment of the
dividend is less than the aggregate amount of the capital represented by the
issued and outstanding stock of all classes having a preference upon the
distribution of assets. In addition, the DGCL generally provides that a
corporation may redeem or repurchase its shares only if such redemption or
repurchase would not impair the capital of the corporation.
 
     Metrocall.  The Metrocall Certificate does not contain any restrictions on
the payment of dividends. However, the Series A Preferred Stock prohibits
payment of dividends to holders of Metrocall Common Stock
 
                                       59
<PAGE>   71
 
(other than dividends consisting of Metrocall Common Stock or rights with
respect to Metrocall Common Stock) without the consent of the holders of such
stock. Preferred Stock and the Series B Preferred Stock. See "DESCRIPTION OF
METROCALL CAPITAL STOCK -- Series A Preferred Stock; -- Series B Preferred
Stock."
 
     ProNet.  The ProNet Certificate does not contain any restrictions on the
payment of dividends.
 
CHANGE OF CONTROL
 
     The DGCL and the Metrocall Certificate contain provisions (described under
"RISK FACTORS -- Anti-Takeover and Other Provisions" and "DESCRIPTION OF
METROCALL CAPITAL STOCK -- Metrocall Common Stock") that could operate to delay,
defer or prevent a change of control of the Surviving Corporation including
Delaware's business combination statute, provisions in the Metrocall Certificate
permitting the Metrocall Board of Directors to consider factors in addition to
potential economic benefit to stockholders in connection with business
combinations and provisions limiting the repurchase of shares acquired by
certain persons who hold 5% or more of the capital stock of Metrocall.
 
     Neither the ProNet Certificate nor the ProNet Bylaws includes provisions
relating to Delaware's business combination statute or to factors the ProNet
Board of Directors should consider in evaluating a business combination.
 
STOCKHOLDER RIGHTS PLAN
 
     ProNet.  On March 30, 1995, the ProNet Board of Directors declared a
dividend of one preferred share purchase right for each outstanding share of
ProNet Common Stock (a "Right"). Each Right entitles the registered holder to
purchase from ProNet one-thousandth of a share of ProNet Series A Preferred
Stock at a price of $105 per one one-thousandth of a share, subject to
adjustment. The description and terms of the Rights are set forth in a Rights
Agreement between ProNet and Chemical Shareholder Services Group, Inc., as
Rights Agent.
 
     Detachment of Rights; Exercise.  Initially, the Rights were attached to all
ProNet Common Stock certificates representing outstanding shares, and no
separate right certificates were distributed. Rights are also attached to each
share of ProNet Common Stock issued subsequent to March 30, 1995. The Rights
will separate from the ProNet Common Stock and a "Distribution Date" will occur
upon the earlier of (i) ten business days following a public announcement that a
person or group of affiliated or associated persons (an "Acquiring Person") has
acquired beneficial ownership of 20% or more of the outstanding Voting Shares
(as defined in the Rights Agreement) of ProNet, or (ii) ten business days
following the commencement or announcement of an intention to commence a tender
offer or exchange offer the consummation of which would result in the beneficial
ownership by a person or group of 20% or more of such outstanding Voting Shares.
 
     The Rights are not exercisable until the Distribution Date. The Rights will
expire on April 10, 2005 (the "Final Expiration Date"), unless the Final
Expiration Date is extended or the Rights are earlier redeemed or exchanged by
ProNet as described below.
 
     If a person or group were to acquire 20% or more of the Voting Shares of
ProNet, each Right then outstanding (other than Rights beneficially owned by the
Acquiring Person which would become null and void) would become a right to buy
that number of shares of ProNet Common Stock (or under certain circumstances,
the equivalent number of one one-thousandths of a share of ProNet Series A
Preferred Stock) that at the time of such acquisition would have a market value
of two times the purchase price of the Right.
 
     If ProNet were acquired in a merger or other business combination
transaction or more than 50% of its consolidated assets or earning power were
sold, proper provision will be made so that each holder of a Right will
thereafter have the right to receive, upon the exercise thereof at the then
current purchase price of the Right, that number of shares of common stock of
the acquiring company which at the time of such transaction would have a market
value of two times the purchase price of the Right.
 
                                       60
<PAGE>   72
 
     ProNet Series A Preferred Stock.  The dividend and liquidation rights and
the non-redemption feature of the ProNet Series A Preferred Stock are designed
so that the value of one one-thousandth of a share of ProNet Series A Preferred
Stock purchasable upon exercise of each Right will approximate the value of one
share of ProNet Common Stock. The shares of ProNet Series A Preferred Stock
issuable upon exercise of the Rights will be non-redeemable and rank junior to
all other series of ProNet Preferred Stock. Each whole share of ProNet Series A
Preferred Stock will be entitled to receive a quarterly preferential dividend in
an amount per share equal to the greater of (i) $1.00 in cash, or (ii) in the
aggregate, 1,000 times the dividend declared on the ProNet Common Stock. In the
event of liquidation, the holders of the ProNet Series A Preferred Stock will be
entitled to receive a preferential liquidation payment equal to the greater of
(i) $1,000 per share, or (ii) in the aggregate, 1,000 times the payment made on
the ProNet Common Stock. In the event of any merger, consolidation or other
transaction in which shares of ProNet Common Stock are exchanged for or changed
into other stock or securities, cash or other property, each whole share of
ProNet Series A Preferred Stock will be entitled to receive 1,000 times the
amount received per ProNet Share. Each whole share of ProNet Series A Preferred
Stock shall be entitled to 1,000 votes on all matters submitted to a vote of the
stockholders of ProNet, and the ProNet Series A Preferred Stock shall generally
vote together as one class with the ProNet Common Stock and any other capital
stock on all maters submitted to a vote of stockholders of ProNet.
 
     Exchange Option.  At any time after the acquisition by a person or group of
affiliated or associated persons of beneficial ownership of 20% or more of the
outstanding Voting Shares of ProNet and before the acquisition by a person or
group of 50% or more of the outstanding Voting Shares of ProNet, the ProNet
Board may, at its option, issue ProNet Common Stock in mandatory redemption of,
and in exchange for, all or part of the then outstanding and exercisable Rights
(other than Rights owned by such person or group which would become null and
void) at an exchange ratio of one share of ProNet Common Stock (or one one-
thousandth of a share of ProNet Series A Preferred Stock) for each two shares of
ProNet Common Stock for which each Right is then exercisable, subject to
adjustment.
 
     Redemption of Rights.  At any time prior to the first public announcement
that a person or group has become the beneficial owner of 20% or more of the
outstanding Voting Shares, the ProNet Board may redeem all but not less than all
the then outstanding Rights at a price of $0.01 per Right (the "Redemption
Price"). The redemption of the Rights may be made effective at such time, on
such basis and with such conditions as the ProNet Board of Directors in its sole
discretion may establish. Immediately upon the action of the ProNet Board of
Directors ordering redemption of the Rights, the right to exercise the Rights
will terminate and the only right of the holders of Rights will be to receive
the Redemption Price.
 
     No Rights as Stockholder.  Until a Right is exercised, the holder thereof,
as such, will have no rights as a stockholder of ProNet, including, without
limitation, the right to vote or to receive dividends.
 
     Termination.  On August 5, 1997, the ProNet Board of Directors adopted a
resolution authorizing an amendment to the Rights Plan that provides that the
Rights shall terminate and be of no further force or effect at the Effective
Time.
 
     Metrocall.  Metrocall does not currently have any similar plan in place.
 
LIMIT ON SHARE OWNERSHIP
 
     Under the Communications Act, not more than 20% of Metrocall's capital
stock may be owned of record directly by other than United States citizens or
entities. The Metrocall Certificate authorizes the Metrocall Board of Directors
to redeem any of Metrocall's capital stock to the extent necessary to prevent
the loss or secure the reinstatement of any license or franchise from any
governmental agency. Such stock may be redeemed at the lesser of (i) fair market
value or (ii) such holder's purchase price (if the stock was purchased within
one year of such redemption). The ProNet Certificate contains no such limitation
on share ownership.
 
                                       61
<PAGE>   73
 
                    MANAGEMENT OF THE SURVIVING CORPORATION
 
     It is anticipated that the directors and executive officers of the
Surviving Corporation will be as follows:
 
<TABLE>
<CAPTION>
              NAME                   AGE                          POSITION
- ---------------------------------    ---     --------------------------------------------------
<S>                                  <C>     <C>
Richard M. Johnston..............    62      Chairman of the Board (term expires in 1999)
William L. Collins, III..........    47      President, Chief Executive Officer and Vice
                                             Chairman of the Board (term expires in 2000)
Ronald V. Aprahamian.............    51      Director (term expires in 1998)
Max D. Hopper....................    62      Director (term expires in 1998)
Ryal R. Poppa....................    63      Director (term expires in 1998)
Elliott H. Singer................    56      Director (term expires in 1998)
Harry L. Brock, Jr. .............    62      Director (term expires in 1999)
Jackie R. Kimzey.................    45      Director (term expires in 1999)
Ray D. Russenberger..............    43      Director (term expires in 1999)
Michael Greene...................    35      Director (term expires in 1999)
Royce R. Yudkoff.................    42      Director (term expires in 1999)
Suzanne S. Brock.................    59      Director (term expires in 2000)
Edward E. Jungerman..............    54      Director (term expires in 2000)
Francis A. Martin, III...........    54      Director (term expires in 2000)
Steven D. Jacoby.................    39      Chief Operating Officer and Executive Vice
                                             President
Vincent D. Kelly.................    38      Chief Financial Officer, Treasurer and Executive
                                             Vice President
</TABLE>
 
     Pursuant to the Merger Agreement, Messrs. Hopper, Kimzey and Jungerman, who
are currently directors of ProNet, will be appointed to the Board of Directors
of Metrocall for the terms indicated above. As a result, Metrocall will amend
the Metrocall Bylaws to provide for a total maximum number of directors of 14.
The holders of Series A Preferred Stock have the right to designate two
directors of Metrocall. Michael Greene and Royce Yudkoff have been designated by
such holders.
 
     Set forth below is certain biographical information regarding the directors
and executive officers of the Surviving Corporation.
 
     Ronald V. Aprahamian is a private investor and has been a member of the
Board of Directors of Metrocall since May 1995. Mr. Aprahamian serves as a
Consulting Director for the Riggs National Bank of Washington, D.C., and serves
on the board of directors of Sunrise Assisted Living, Inc. Mr. Aprahamian was
Chairman and Chief Executive Officer of The Compucare Company, a healthcare
computer software services firm, from January 1988 to October 1996. Mr.
Aprahamian's son, Tom Aprahamian, is Vice President of Financial Operations of
Metrocall and receives an annual salary of approximately $93,500.
 
     Harry L. Brock, Jr. founded Metrocall and served as Chairman of the Board
(through January 1996) and President (through August 1995). Mr. Brock has been a
director of Metrocall since 1982, and its predecessor companies since 1965. Mr.
Brock was a founding partner of Cellular One of Washington, one of the first
operating cellular systems. Mr. Brock is the husband of Suzanne S. Brock.
 
     Suzanne S. Brock has been a director of Metrocall since 1982 and was
Secretary (through May 1996) and Treasurer (through August 1995) of Metrocall.
Ms. Brock was employed by Metrocall and its predecessor companies from 1965
through May 1996. Ms. Brock is the wife of Harry L. Brock, Jr.
 
     William L. Collins, III has been President and Chief Executive Officer of
Metrocall since January 1996 and has served as Director and Vice Chairman of the
Board since September 1994. From 1988 to 1994, Mr. Collins was the Chairman of
the Board, Chief Executive Officer, President and a director of
 
                                       62
<PAGE>   74
 
FirstPAGE USA, Inc. and its predecessor companies. Mr. Collins serves as
Chairman of the Board of Directors of USA Telecommunications, Inc. From 1977 to
1988, Mr. Collins was President of C&C, Inc. ("C&C"), a national communications
marketing and management company.
 
     Michael Greene has been a director of Metrocall since January 1997. He is a
Managing Director of UBS Capital LLC, which is the private equity subsidiary of
the Union Bank of Switzerland ("UBS"). Mr. Greene has worked in UBS' private
equity and leveraged finance businesses since he joined UBS in 1990. Mr. Greene
serves on the board of directors of CBP Resources Inc.
 
     Richard M. Johnston has served as Chairman of the Board of Directors of
Metrocall since January 1996, and has been a member of the Board of Directors
since September 1994. Mr. Johnston has been Vice President -- Investments of The
Hillman Company since 1970 and a director of The Hillman Company since 1994. Mr.
Johnston serves on the board of directors of Novosote Corporation.
 
     Francis A. Martin, III has been a member of the Board of Directors of
Metrocall since November 1994. Mr. Martin is a principal of U.S. Media Group and
Chairman of the Board, President and Chief Executive Officer of U.S. Media
Holdings, Inc. Mr. Martin previously served as President and Chief Executive
Officer of Chronicle Broadcasting Company, a publicly-held television
broadcasting company.
 
     Ryal R. Poppa is a private investor and has been a director of Metrocall
since November 1996. Mr. Poppa served as Chairman of the Board, President and
Chief Executive Officer of Storage Technology Corporation, an international
company that manufactures, markets and services information storage and
retrieval services for high performance computers, from January 1985 through
June 1996. Mr. Poppa serves on the board of directors of Semitool, Inc. and
Carrier Access, Inc.
 
     Ray D. Russenberger has been a director of Metrocall since November 1996.
Mr. Russenberger was Vice Chairman of A+ Network from October 1995 through the
merger of A+ Network into Metrocall in November 1996. He served as Chairman of
the Board and Chief Executive Officer of Network Paging Corporation ("Network")
(which was merged with A+ Communications, Inc. in 1995 to form A+ Network) since
December 1988. From 1985 to 1990, he founded and was President of Network Paging
Corporation, a paging company sold to Mobile Communications Corporation of
America, a wholly-owned subsidiary of BellSouth Corporation, in 1990. Mr.
Russenberger was elected to the board of directors pursuant to Metrocall's
merger agreement with A+ Network. Mr. Russenberger serves on the board of
directors of the First American Bank of Pensacola.
 
     Elliott H. Singer has been a director of Metrocall since November 1996. Mr.
Singer was Chairman of the Board of A+ Communications, Inc. from its formation
in 1985 and was chairman of A+ Network from October 1995 until its merger with
Metrocall in November 1996, and also served as Chief Executive Officer of A+
Network from 1985 to January 15, 1996. Mr. Singer was the owner and Chief
Executive Officer of A+ Network's predecessor entities, through which he had
been engaged in the telemessaging service business since 1974 and in the paging
business since 1983. Mr. Singer was elected to the board of directors pursuant
to Metrocall's merger agreement with A+ Network.
 
     Royce R. Yudkoff has been a director of Metrocall since April 1997. Mr.
Yudkoff is the Managing Partner of ABRY Partners, Inc., a private equity
investment firm which invests in the communications and media industries. Prior
to co-founding ABRY in 1988, Mr. Yudkoff was a partner at Bain & Company
("Bain"), an international management consulting firm where he had significant
responsibility for Bain's media practice. Mr. Yudkoff serves on the board of
directors of Sullivan Broadcasting Company, Pinnacle Towers and several other
private companies.
 
     Max D. Hopper has been a director of ProNet since May 1997. Since 1995, Mr.
Hopper has been the President of Max D. Hopper Associates, a consulting firm
that specializes in creating benefits for the strategic use of advanced
information technologies. Prior to 1995, Mr. Hopper spent 20 years in several
positions with AMR Corporation, American Airlines' parent company.
 
                                       63
<PAGE>   75
 
     Jackie R. Kimzey is a founder of ProNet and has been a director ProNet
since 1983. Mr. Kimzey has been Chairman of the Board of ProNet since March 1990
and Chief Executive Officer of ProNet since May 1983. Mr. Kimzey served as
President of ProNet from May 1983 until May 1991.
 
     Edward E. Jungerman has been a director ProNet since May 1992. Mr.
Jungerman has been President of Impulse Telecommunications Corporation, a
strategic telecommunications consulting firm, since 1986. He has over 25 years
experience in the telecommunications field, including senior executive positions
at Northern Telecom, Inc. and private, start-up ventures in the specialized
advanced telecommunications services field.
 
     Steven D. Jacoby has been Chief Operating Officer and Vice President of
Metrocall since September 1994. Mr. Jacoby was appointed Executive Vice
President in February 1997. Mr. Jacoby joined Metrocall from FirstPAGE USA, Inc.
where he had served as Chief Operating Officer, Vice President and Secretary
since 1988. Mr. Jacoby was a director of Metrocall from September 1994 until
November 1996.
 
     Vincent D. Kelly has been the Chief Financial Officer and Vice President of
Metrocall since January 1989. Mr. Kelly has also served as Treasurer since
August 1995 and was appointed Executive Vice President in February 1997. Mr.
Kelly served as Chief Operating Officer and Chief Financial Officer of Metrocall
from February 1993 through August 31, 1994, when Metrocall acquired FirstPAGE
USA, Inc. Mr. Kelly was a director of Metrocall from 1990 until November 1996.
Mr. Kelly is a certified public accountant.
 
     See "THE MERGER AND RELATED TRANSACTIONS -- Interests of Certain Persons in
the Merger" for a description of agreements with certain current directors and
officers of ProNet.
 
                                       64
<PAGE>   76
 
                  PRO FORMA CONDENSED COMBINED FINANCIAL DATA
                                  (UNAUDITED)
 
     The following unaudited pro forma condensed combined balance sheet under
the heading "Pro Forma Metrocall and Page America" gives effect to the Page
America Acquisition for (i) cash of approximately $26 million (after adjustments
under the terms of the agreement and including direct acquisition costs of
approximately $1.2 million), (ii) 3,997,458 shares of Metrocall Common Stock at
$4.8125 per share, and (iii) 1,500 shares of Series B Preferred Stock having a
Stated Value of $15 million bearing dividends at 14% per year. The unaudited pro
forma condensed combined balance sheet under the heading "Pro Forma Metrocall,
Page America and ProNet" also gives effect to the Merger as if the Merger had
occurred on June 30, 1997. The consideration of the Merger is based upon a
Conversion Ratio of 0.90. The Conversion Ratio is subject to adjustment in
certain circumstances; accordingly, the consideration to be issued by Metrocall
could differ. See "THE MERGER AGREEMENT AND TERMS OF THE MERGER -- Number of
Shares to be Issued; Conversion Ratio Adjustments".
 
     The unaudited pro forma condensed combined statements of operations for the
year ended December 31, 1996 under the heading "Pro Forma Metrocall" gives
effect to Metrocall's 1996 acquisitions including Parkway for approximately
$28.0 million, Satellite for 1.8 million shares of Metrocall Common Stock, and
A+ Network for approximately $284.4 million, including 8.1 million shares of
Metrocall Common Stock together with the issuance of $39.9 million of Series A
Preferred Stock and the refinancing of A+ Network's long-term debt as if each
transaction had occurred on January 1, 1996. The unaudited pro forma condensed
combined statements of operations for the year ended December 31, 1996 also
gives effect to the Page America Acquisition under the heading "Pro Forma
Metrocall and Page America" and to the Merger under the heading "Pro Forma
Metrocall, Page America and ProNet" as if those transactions had occurred on
January 1, 1996.
 
     The unaudited pro forma condensed combined statements of operations for the
six months ended June 30, 1997 gives effect to the Page America Acquisition
under the heading "Pro Forma Metrocall and Page America" as if the acquisition
had occurred on January 1, 1996. The unaudited pro forma condensed combined
statements of operations for the six months ended June 30, 1997 also gives
effect to the Merger under the heading "Pro Forma Metrocall, Page America and
ProNet" as if the acquisition had occurred on January 1, 1996.
 
     Each of the recent and pending acquisitions has been or will be accounted
for by the purchase method of accounting. The purchase prices have been
allocated on a preliminary basis to the assets to be acquired based upon the
estimated value of such assets. The final allocation of intangible assets will
be based upon the appraised values.
 
     This information should be read in conjunction with the notes included
herein and the Parkway Financial Statements, Satellite Financial Statements, A+
Network Consolidated Financial Statements, Page America Financial Statements
incorporated by reference herein, and the Metrocall and ProNet Consolidated
Financial Statements included herewith. The unaudited pro forma condensed
combined financial data do not purport to represent what the Surviving
Corporation's results of operations or financial position actually would have
been had such transactions and events occurred on the dates specified, or to
project the Surviving Corporation's results of operations or financial position
for any future period or date. The pro forma adjustments are based upon
available information and certain adjustments that management of Metrocall
believes are reasonable. In the opinion of management of Metrocall, all
adjustments have been made that are necessary to present fairly the unaudited
pro forma condensed combined data.
 
                                       65
<PAGE>   77
 
                                METROCALL, INC.
 
              UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET
                              AS OF JUNE 30, 1997
                                 (in Thousands)
<TABLE>
<CAPTION>
                                                                                           PRO FORMA ADJUSTMENTS
                                                                                       -----------------------------     PRO FORMA
                                                                     HISTORICAL          ASSETS AND                      METROCALL
                                                                --------------------     LIABILITIES        OTHER           AND
                                                                              PAGE      NOT ACQUIRED      PRO FORMA        PAGE
                                                                METROCALL   AMERICA     OR ASSUMED(A)    ADJUSTMENTS      AMERICA
                                                                ---------   --------   ---------------   -----------     ---------
<S>                                                             <C>         <C>        <C>               <C>             <C>
                                    ASSETS
Current assets:
  Cash, cash equivalents and short term investments...........  $ 20,749    $    623      $    (623)      $      --      $ 20,749
  Accounts receivable, net....................................    24,041         673             --              --        24,714
  Prepaid expenses and other current assets...................     7,396         523           (439)             --         7,480
                                                                --------    --------      ---------       ---------      -------- 
        Total current assets..................................    52,186       1,819         (1,062)             --        52,943
Furniture and equipment, net..................................   151,831       4,867             --              --       156,698
Intangibles, net..............................................   440,356      31,172             --          26,937(B)    498,465
Other assets..................................................     2,355         788           (473)             --         2,670
                                                                --------    --------      ---------       ---------      -------- 
        Total assets..........................................  $646,728    $ 38,646      $  (1,535)      $  26,937      $710,776
                                                                ========    ========      =========       =========      ========  
 
                     LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Current maturities of long-term obligations.................  $    965    $ 52,430      $ (52,430)      $      --      $    965
  Accounts payable and accrued expenses.......................    38,939       6,430         (5,183)             --        40,186
  Deferred revenues and subscriber deposits...................     6,457       1,723             --              --         8,180
  Other current liabilities...................................        --       4,335         (4,335)             --            --
                                                                --------    --------      ---------       ---------      -------- 
        Total current liabilities.............................    46,361      64,918        (61,948)             --        49,331
Capital lease obligation......................................     4,717          --             --              --         4,717
Long-term obligations.........................................   343,571          39            (39)         25,630(D)    369,201(M)
Deferred income taxes.........................................    75,249          --             --              --        75,249
Minority interest.............................................       511          --             --              --           511
                                                                --------    --------      ---------       ---------      -------- 
        Total liabilities.....................................   470,409      64,957        (61,987)         25,630       499,009
Redeemable preferred stock....................................    34,401          --             --          15,000(E)     49,401(M)
Total stockholders' equity....................................   141,918     (26,311)        60,452         (13,693)(F)   162,366(M)
                                                                --------    --------      ---------       ---------      -------- 
Total liabilities, redeemable preferred stock and
  stockholders' equity........................................  $646,728    $ 38,646      $  (1,535)      $  26,937      $710,776
                                                                ========    ========      =========       =========      ========  
 
<CAPTION>
 
                                                                                           PRO FORMA
                                                                                           METROCALL,
                                                                               PRO            PAGE
                                                                              FORMA         AMERICA
                                                                 PRONET    ADJUSTMENTS     AND PRONET
                                                                --------   -----------     ----------
<S>                                                             <C>        <C>             <C>
                                    ASSETS
Current assets:
  Cash, cash equivalents and short term investments...........  $  3,817    $      --       $  24,566 
  Accounts receivable, net....................................    11,189           --          35,903 
  Prepaid expenses and other current assets...................     5,300           --          12,780 
                                                                --------    ---------       --------- 
        Total current assets..................................    20,306           --          73,249 
Furniture and equipment, net..................................    75,505           --         232,203 
Intangibles, net..............................................   211,380       45,895(B)      755,740 
Other assets..................................................        --           --           2,670 
                                                                --------    ---------       --------- 
        Total assets..........................................  $307,191    $  45,895      $1,063,862 
                                                                ========    =========       ========= 
                     LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:                                                                                  
  Current maturities of long-term obligations.................  $     --    $      --       $     965 
  Accounts payable and accrued expenses.......................    31,698        1,477(C)       73,361 
  Deferred revenues and subscriber deposits...................     4,000           --          12,180 
  Other current liabilities...................................        --           --              -- 
                                                                --------    ---------       --------- 
        Total current liabilities.............................    35,698        1,477          86,506 
Capital lease obligation......................................        --           --           4,717 
Long-term obligations.........................................   170,226           --         539,427 
Deferred income taxes.........................................        --       71,847(B)      147,096 
Minority interest.............................................                     --             511 
                                                                --------    ---------       --------- 
        Total liabilities.....................................   205,924       73,324         778,257 
Redeemable preferred stock....................................        --                       49,401 
Total stockholders' equity....................................   101,267      (27,429)(F)     236,204 
                                                                --------    ---------       --------- 
Total liabilities, redeemable preferred stock and                                                     
  stockholders' equity........................................  $307,191    $  45,895      $1,063,862
                                                                ========    =========      ==========
</TABLE>
 
              See accompanying notes to this unaudited statement.
 
                                       66
<PAGE>   78
 
                                METROCALL, INC.
 
         UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
                      FOR THE YEAR ENDED DECEMBER 31, 1996
                      (In Thousands Except Per Share Data)
<TABLE>
<CAPTION>
                                                                HISTORICAL
                                            --------------------------------------------------
                                                                                        A+        PRO FORMA
                                            METROCALL   PARKWAY(G)   SATELLITE(G)   NETWORK(G)   ADJUSTMENTS
                                            ---------   ----------   ------------   ----------   -----------
<S>                                         <C>         <C>          <C>            <C>          <C>
Service, rent & maintenance revenues....    $ 124,029     $5,302        $6,564       $ 78,994     $      --
Product sales...........................       25,928        860           801          5,408            --
                                            ---------   ----------      ------      ----------   -----------
        Total revenues..................      149,957      6,162         7,365         84,402            --
Net book value of products sold.........      (21,633)      (934)         (805)        (7,435)          220(H)
                                            ---------   ----------      ------      ----------   -----------
                                              128,324      5,228         6,560         76,967           220
Service, rent & maintenance expense.....       38,347      1,417         2,418         17,016            --
Selling, marketing, general and
  administrative........................       57,226      2,305         2,449         43,329        (1,087)(I)
Depreciation & amortization.............       58,196        586           447         24,882        16,181(J)
Other...................................           --         --            12            396            --
                                            ---------   ----------      ------      ----------   -----------
        Total operating expenses........      153,769      4,308         5,326         85,623        15,094
                                            ---------   ----------      ------      ----------   -----------
(Loss) income from operations...........      (25,445)       920         1,234         (8,656)      (14,874)
Interest expense, net...................      (21,031)      (274)         (713)       (11,844)        3,289(K)
                                            ---------   ----------      ------      ----------   -----------
    Net (loss) income before taxes......      (46,476)       646           521        (20,500)      (11,585)
Benefit (provision) for taxes...........        1,021       (229)           --             --         4,822(L)
                                            ---------   ----------      ------      ----------   -----------
    Net (loss) income...................    $ (45,455)    $  417        $  521       $(20,500)    $  (6,763)
                                             ========   =========    =========      =========     =========
Net loss per share......................    $   (2.80)
                                             ========
Shares used in computing net loss per
  share.................................       16,253
                                             ========
 
<CAPTION>
                                                                       PRO FORMA ADJUSTMENTS
                                                                      -----------------------
                                                                                      OTHER         PRO FORMA
                                                                      OPERATIONS       PRO          METROCALL
                                            PRO FORMA        PAGE         NOT         FORMA         AND PAGE
                                            METROCALL       AMERICA   ACQUIRED(A)    ADJUSTMENTS     AMERICA     PRONET
                                            ---------       -------   -----------    --------       ---------   --------
<S>                                       <C>           <C>
Service, rent & maintenance revenues....    $ 214,889       $20,074     $    --      $    --        $ 234,963   $ 87,239
Product sales...........................       32,997         1,910          --           --           34,907     15,817
                                            ---------       -------   -----------    --------       ---------   --------
        Total revenues..................      247,886        21,984          --           --          269,870    103,056
Net book value of products sold.........      (30,587)       (1,284)         --           --          (31,871)   (13,244)
                                            ---------       -------   -----------    --------       ---------   --------
                                              217,299        20,700          --           --          237,999     89,812
Service, rent & maintenance expense.....       59,198         5,318          --           --           64,516     25,924
Selling, marketing, general and
  administrative........................      104,222        10,258          --           --          114,480     39,090
Depreciation & amortization.............      100,292         6,173          --        2,514 (J)      108,979     40,624
Other...................................          408            --                                       408      8,809
                                            ---------       -------   -----------    --------       ---------   --------
        Total operating expenses........      264,120        21,749          --        2,514          288,383    114,447
                                            ---------       -------   -----------    --------       ---------   --------
(Loss) income from operations...........      (46,821)       (1,049)         --       (2,514)         (50,384)   (24,635)
Interest expense, net...................      (30,573)       (7,061)      6,153       (2,080) (K)     (33,561)   (15,085)
                                            ---------       -------   -----------    --------       ---------   --------
    Net (loss) income before taxes......      (77,394)       (8,110)      6,153       (4,594)         (83,945)   (39,720)
Benefit (provision) for taxes...........        5,614            --          --           --            5,614       (323)
                                            ---------       -------   -----------    --------       ---------   --------
    Net (loss) income...................    $ (71,780)      $(8,110)    $ 6,153      $(4,594)       $ (78,331)  $(40,043)
                                             ========       =======   =========      =========       ========   ========
Net loss per share......................    $   (2.87)                                              $   (2.70)
                                             ========                                                ========
Shares used in computing net loss per
  share.................................       24,978                                                  28,975
                                             ========                                                ========
 
<CAPTION>
                                                        PRO FORMA
                                                        METROCALL,
                                                          PAGE
                                                         AMERICA
                                           PRO FORMA       AND
                                          ADJUSTMENTS    PRONET
                                          -----------   ---------
Service, rent & maintenance revenues....    $    --     $ 322,202
Product sales...........................         --        50,724
                                          -----------   ---------
        Total revenues..................         --       372,926
Net book value of products sold.........         --       (45,115)
                                          -----------   ---------
                                                 --       327,811
Service, rent & maintenance expense.....         --        90,440
Selling, marketing, general and
  administrative........................         --       153,570
Depreciation & amortization.............      2,922(J)    152,525
Other...................................         --         9,217
                                          -----------   ---------
        Total operating expenses........      2,922       405,752
                                          -----------   ---------
(Loss) income from operations...........     (2,922)      (77,941)
Interest expense, net...................         --       (48,646)
                                          -----------   ---------
    Net (loss) income before taxes......     (2,922)     (126,587)
Benefit (provision) for taxes...........      4,790(L)     10,081
                                          -----------   ---------
    Net (loss) income...................    $ 1,868     $(116,506)
                                          =========     =========
Net loss per share......................                $   (2.82)
                                                        =========
Shares used in computing net loss per
  share.................................                   41,281(M)
                                                        =========
</TABLE>
 
              See accompanying notes to this unaudited statement.
 
                                       67
<PAGE>   79
 
                                METROCALL, INC.
 
         UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
                     FOR THE SIX MONTHS ENDED JUNE 30, 1997
                      (In Thousands Except Per Share Data)
<TABLE>
<CAPTION>
                                                                     PRO FORMA ADJUSTMENTS
                                                HISTORICAL         --------------------------
                                          ----------------------                   OTHER PRO      PRO FORMA
                                                         PAGE       OPERATIONS       FORMA      METROCALL AND
                                          METROCALL   AMERICA(H)   NOT ACQUIRED   ADJUSTMENTS   PAGE AMERICA     PRONET
                                          ---------   ----------   ------------   -----------   -------------   --------
<S>                                       <C>         <C>          <C>            <C>           <C>             <C>
Service, rent & maintenance revenue.....  $118,537     $  8,669       $   --        $    --       $ 127,206     $ 48,562
Product sales...........................    18,513          658           --             --          19,171       10,430
                                          ---------   ----------      ------      -----------   -------------   --------
        Total revenues..................   137,050        9,327           --             --         146,377       58,992
Net book value of products sold.........   (13,682)        (425)          --             --         (14,107)      (7,183)
                                          ---------   ----------      ------      -----------   -------------   --------
                                           123,368        8,902           --             --         132,270       51,809
Service, rent & maintenance expense.....    35,440        2,635           --             --          38,075       15,351
Selling, marketing, general and
  administrative........................    54,749        4,849           --             --          59,598       21,571
Depreciation & amortization.............    43,549        2,310           --          1,257(J)       47,116       33,117
Other...................................        --           --           --             --              --        6,550
                                          ---------   ----------      ------      -----------   -------------   --------
        Total operating expenses........   133,738        9,794           --          1,257         144,789       76,589
                                          ---------   ----------      ------      -----------   -------------   --------
(Loss) Income from operations...........   (10,370)        (892)          --         (1,257)        (12,519)     (24,780)
Interest expense, net...................   (15,847)      (3,211)       3,046         (1,040)(K)     (17,052)      (8,619)
                                          ---------   ----------      ------      -----------   -------------   --------
        Net (loss) income before
          taxes.........................   (26,217)      (4,103)       3,046         (2,297)        (29,571)     (33,399)
Benefit (provision) for taxes...........     2,165          (26)          --             --(L)        2,139         (167)
                                          ---------   ----------      ------      -----------   -------------   --------
        Net (loss) income...............  $(24,052)    $ (4,129)      $3,046        $(2,297)      $ (27,432)    $(33,566)
                                          =========   ===========  ============   ===========   ============    ========
Net loss per share......................  $  (0.96)                                               $   (0.95)
                                          =========                                             ============
Shares used in computing net loss per
  share.................................    24,978                                                   28,975
                                          =========                                             ============
 
<CAPTION>
 
                                                         PRO FORMA
                                                         METROCALL,
                                           PRO FORMA    PAGE AMERICA
                                          ADJUSTMENTS    AND PRONET
                                          -----------   ------------
<S>                                       <C>           <C>
Service, rent & maintenance revenue.....    $    --       $175,768
Product sales...........................         --         29,601
                                          -----------   ------------
        Total revenues..................         --        205,369
Net book value of products sold.........         --        (21,290)
                                          -----------   ------------
                                                 --        184,079
Service, rent & maintenance expense.....         --         53,426
Selling, marketing, general and
  administrative........................         --         81,169
Depreciation & amortization.............      1,461(J)      81,694
Other...................................         --          6,550
                                          -----------   ------------
        Total operating expenses........      1,461        222,839
                                          -----------   ------------
(Loss) Income from operations...........     (1,461)       (38,760)
Interest expense, net...................         --(K)     (25,671)
                                          -----------   ------------
        Net (loss) income before
          taxes.........................     (1,461)       (64,431)
Benefit (provision) for taxes...........      2,395(L)       4,367
                                          -----------   ------------
        Net (loss) income...............    $   934       $(60,064)
                                          ===========   ============
Net loss per share......................                  $  (1.46)
                                                        ============
Shares used in computing net loss per
  share.................................                    41,281(M)
                                                        ============
</TABLE>
 
              See accompanying notes to this unaudited statement.
 
                                       68
<PAGE>   80
 
                     NOTES TO UNAUDITED PRO FORMA CONDENSED
                         COMBINED FINANCIAL STATEMENTS
 
     The pro forma condensed combined financial statements reflects a per share
price of $4.8125 for the Metrocall Common Stock issued in connection with the
Page America Acquisition and assumes a per share price of $6.00 for the
Metrocall Common Stock to be issued in connection with the Merger. The
consideration for the Merger will be based upon the Conversion Ratio, which is
subject to adjustment in certain circumstances. The consideration, therefore, is
subject to change, which may be material, based upon a variety of factors
including the financial performance of ProNet prior to closing.
 
     (A) Reflects those assets not acquired and liabilities not assumed of Page
America in the asset purchase transaction including cash, certain prepaid
expenses and other assets, substantially all debt and related obligations
(including accrued but unpaid dividends).
 
     Reflects those revenues, expenses and results of operations not assumed of
Page America including interest related to debt not assumed.
 
     (B) Reflects fair values assigned to intangible assets acquired which
consist of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                  PAGE AMERICA      PRONET
                                                                  ------------     ---------
    <S>                                                           <C>              <C>
    FCC License.................................................    $ 29,356       $ 148,342
    Subscriber Lists............................................      28,753          37,086
    Goodwill....................................................          --          71,847
    Less: Historical Intangibles................................     (31,172)       (211,380)
                                                                  ------------     ---------
                                                                    $ 26,937       $  45,895
                                                                  ==========       =========
</TABLE>
 
     The Merger is structured as a tax free reorganization. The deferred income
tax liability represents the tax effect of the difference between the amounts
allocated to assets acquired and their tax basis.
 
     (C) Reflects estimated accruals for direct acquisition costs related to the
Merger.
 
     (D) Reflects the cash payment and direct acquisition costs of approximately
$26 million related to the Page America Acquisition, which was financed with
long-term debt.
 
     (E) Reflects the issuance of 1,500 shares of Series B Preferred Stock
having a Stated Value of $15 million bearing dividends at 14% per year.
 
     (F) Reflects the issuance of 3,997,458 shares of Metrocall Common Stock at
$4.8125 per share in connection with the Page America Acquisition net of
historical amounts.
 
     Also reflects the estimated issuance of approximately 12,306,388 shares of
Metrocall Common Stock, subject to adjustment based on changes in ProNet's
financial position net of historical amounts.
 
     (G) Historical statements for Parkway, Satellite and A+ Network in 1996 are
through July 16, 1996, August 30, 1996, and November 15, 1996, respectively,
which are the dates the respective acquisitions were completed. Subsequent to
completion of the acquisitions, all financial reporting data are included in the
historical Metrocall data.
 
     (H) Reflects the estimated difference in the net book value of products
sold based upon Metrocall's estimated useful lives of subscriber equipment.
 
     (I) Reflects the elimination of certain executive salaries and bonuses for
Parkway, Satellite and A+ Network executives terminated upon completion of the
respective acquisitions in July, August and November of 1996.
 
     (J) Reflects incremental depreciation and amortization based upon the
preliminary allocation of depreciable and amortizable assets and assumed useful
lives of 5 years for subscriber lists, 25 years for FCC licenses and 15 years
for goodwill.
 
     (K) Represents the estimated incremental interest at a rate of 8.00% that
would have been incurred assuming all acquisitions were completed on January 1,
1996.
 
                                       69
<PAGE>   81
 
     (L) Represents the tax benefit resulting from the amortization of acquired
intangibles for ProNet, A+ Network and Parkway assuming an effective tax rate of
40%.
 
     (M) Includes the effect of shares of Metrocall Common Stock assumed to be
issued in the recent acquisitions as if each had occurred as of the beginning of
the period. The Merger includes the effect of 12,306,388 shares which is based
upon the conversion to Metrocall Common Stock of only those shares of ProNet
Common Stock presently outstanding or which ProNet has agreed to issue as of
June 30, 1997. Under the terms of the Merger Agreement, an additional 949,409
shares of Metrocall Common Stock may be issued in the future to finalize several
ProNet agreements.
 
                                       70
<PAGE>   82
 
                    RECENT DEVELOPMENTS REGARDING METROCALL
 
PENDING LITIGATION
 
     Metrocall entered into an agreement in April 1996 to purchase certain
assets of Source One Wireless, Inc. ("Source One") and placed $1 million cash in
escrow. On June 26, 1996, Metrocall advised Source One that Source One had
failed to meet certain conditions to completion of the transaction and
terminated the agreement. On September 20, 1996, Source One filed an action in
the Circuit Court of Cook County, Illinois claiming that Metrocall had breached
the agreement and seeking specific performance of the purchase agreement or
unspecified damages in excess of $80 million. Metrocall removed the action to
the United States District Court for the Northern District of Illinois.
Metrocall believes it has meritorious defenses to this action and intends to
vigorously defend the claims in this action. Metrocall has denied the claim and
asserted affirmative defenses and counterclaims based on misrepresentations and
breaches of contract by Source One. On April 21, 1997, the court set the
following litigation schedule: discovery cutoff on October 24, 1997, and
pre-trial order to be entered in open court on November 24, 1997. Metrocall's
legal counsel believes that trial is not likely to be set for a time earlier
than January 1998.
 
ACQUISITION OF PAGE AMERICA ASSETS
 
     On July 1, 1997, Metrocall completed the acquisition of substantially all
the assets of Page America. Pursuant to this transaction, (i) Metrocall acquired
substantially all of the assets and assumed substantially all of Page America's
accounts payable and certain obligations under various office and equipment
leases and (ii) Page America received (a) approximately $25 million in cash, (b)
1,500 shares of Series B Preferred Stock with a liquidation value of $15 million
and (c) 3,997,458 shares of Metrocall Common Stock. Metrocall financed the cash
portion of the purchase price, including transactions fees and expenses, with
borrowings of $26 million under the Metrocall Credit Facility. The Page America
Acquisition will be accounted for as a purchase for financial reporting
purposes.
 
METROCALL CREDIT FACILITY
 
     Metrocall and its bank lenders executed an amendment to the Metrocall
Credit Facility on August 11, 1997. In addition to increasing the available
borrowings, the amendment includes approval of the Merger and changes to certain
financial covenants including total leverage and interest coverage beginning
January 1, 1998. Under the Metrocall Credit Facility, as amended, subject to
certain conditions, Metrocall may borrow up to $375,000,000 under three loan
facilities. The first facility ("Facility A") is a $225,000,000 reducing
revolving credit facility, the second ("Facility B") is a $125,000,000 reducing
credit facility and the third is a $25,000,000 reducing revolving credit
facility ("Facility C"). At June 30, 1997, a total of approximately $189.9
million was outstanding under the Metrocall Credit Facility. Metrocall increased
borrowings under the Metrocall Credit Facility in connection with the Page
America Acquisition on July 1, 1997 ($26 million) and to fund working capital
requirements on August 19, 1997 ($10 million). Pursuant to the terms of the loan
agreement, based on Metrocall's operating results (pro forma for the Page
America Acquisition and the Merger) for the quarter ended June 30, 1997, total
additional borrowings available to Metrocall under the credit facility would be
approximately $75 million. The Metrocall Credit Facility has a term of eight
years and is secured by substantially all the assets of Metrocall. Required
quarterly principal repayments begin on March 31, 2000 and continue through
December 31, 2004.
 
     The Metrocall Credit Facility, as amended, contains various covenants that,
among other restrictions, require Metrocall to maintain certain financial
ratios, including total debt to annualized operating cash flow (not to exceed
6.0 to 1.0 through December 31, 1997 and declining thereafter), senior debt to
annualized operating cash flow, annualized operating cash flow to pro forma debt
service, total sources of cash to total uses of cash and operating cash flow to
interest expense (in each case, as such terms are defined in the agreement
relating to the Metrocall Credit Facility). The covenants also limit additional
indebtedness and future mergers and acquisitions without the approval of the
lenders and restrict the payment of cash dividends and other stockholder
distributions by Metrocall during the term of the Metrocall Credit Facility. The
 
                                       71
<PAGE>   83
 
Metrocall Credit Facility also prohibits certain changes in ownership control of
Metrocall, as defined, during the term of the Metrocall Credit Facility.
 
     Metrocall's management believes that funds generated by Metrocall's
operations, together with those available under its Metrocall Credit Facility,
will be sufficient to meet debt service requirements to finance estimated
capital expenditure requirements, and to fund Metrocall's existing operations
for the foreseeable future. While Metrocall currently has no outstanding
commitments, other than the Merger, Metrocall will continue to evaluate
strategic acquisition targets in the future. Potential future acquisitions could
be evaluated on significant strategic opportunities such as geographic coverage
and regulatory licenses and other factors including overall valuation,
consideration and availability of financing. Such potential acquisitions may
result in substantial capital requirements for which additional financing may be
required. No assurance can be given that such additional financing would be
available on terms satisfactory to Metrocall.
 
                      RECENT DEVELOPMENTS REGARDING PRONET
 
RECENT ACQUISITIONS
 
     In 1996, ProNet signed a definitive agreement to acquire the capital stock
of Modern Communication Corp. and Personal Communications, Inc. ("Modern").
Effective March 1, 1997, ProNet completed the acquisition of Modern.
 
LITIGATION
 
     ProNet Securities Litigation. ProNet and certain of its officers and
directors are defendants in seven separate actions alleging various violations
of federal and state securities laws. The ProNet Securities Litigation asserts
claims on behalf of all persons who purchased shares of ProNet Common Stock in
ProNet's public offering of 4,000,000 shares that commenced on May 31, 1996 and
all persons who purchased shares of ProNet Common Stock in the open market
during an alleged class period.
 
     On September   , 1997, ProNet entered in an agreement to settle the ProNet
Securities Litigation. ProNet and its insurance carriers will pay $  million to
settle all claims against ProNet and its officers and directors. ProNet will
issue one million shares of ProNet Common Stock to the class. ProNet will also
pay $2 million to the class if, within two years from final approval of the
settlement, the Merger is completed or ProNet engages in another merger or
similar transaction which results in a "change of control" of ProNet.
Additionally, as part of ProNet's separate agreement with its former
underwriters relating to the litigation, ProNet has agreed to pay an additional
$400,000 to the plaintiffs in the ProNet Securities Litigation in exchange for
an agreement with the former underwriters to mutually release certain claims
between ProNet and its former underwriters. The proposed settlement is subject
to court approval.
 
     On September   , 1997, the United States District Court for the Northern
District of Texas preliminarily approved the proposed settlement. The Court set
a hearing on the parties' joint motion for entry of a final judgment approving
the settlement for November   , 1997 at   o'clock.
 
     Class Action Suit. On August 13, 1997, ProNet and certain of its directors
were named in a class action complaint filed in the Court of Chancery for the
State of Delaware in and for New Castle County. The case is styled, Jerry Krim
v. ProNet Inc., et al., C.A. No. 15873. In this action, the plaintiff alleges
that ProNet stockholders will receive inadequate consideration in the Merger.
The plaintiffs further allege various breaches by the director defendants in
connection with the proposed Merger. The defendants view the complaint as
meritless and on September 5, 1997 filed a motion to dismiss plaintiff's
complaint. That motion is pending before the Court.
 
                                       72
<PAGE>   84
 
             AMENDMENT OF METROCALL CHARTER TO INCREASE THE NUMBER
                         OF AUTHORIZED METROCALL SHARES
 
     The Board of Directors of Metrocall has determined that it is advisable to
increase the authorized number of shares of Metrocall Common Stock by 20,000,000
shares, from 60,000,000 shares to 80,000,000 shares and has voted to recommend
that the stockholders approve and adopt the Charter Amendment to effect the
proposed increase. Adoption of the Charter Amendment is necessary to complete,
and is a condition to completion of, the Merger.
 
     APPROVAL BY THE METROCALL STOCKHOLDERS OF THE PROPOSED INCREASE IN
AUTHORIZED COMMON STOCK WILL CONSTITUTE ADOPTION OF THE AMENDMENT.
 
     As of the Metrocall Record Date, [32,271,312] shares of Metrocall Common
Stock were issued and outstanding or reserved for issuance pursuant to
Metrocall's existing stock option and purchase plans. Metrocall anticipates that
12,306,388 additional shares of Metrocall Common Stock will be issued in the
Merger. In addition, 18,500,000 shares of Metrocall Common Stock have been
reserved for issuance upon conversion of the Series A Preferred and the Series B
Preferred. Further, 2,915,254 shares of Metrocall Common Stock have been
reserved for issuance upon the exercise of Warrants. See "DESCRIPTION OF
METROCALL CAPITAL STOCK -- Warrants." 4,000,000 shares may be reserved for
issuance if the proposal to increase the number of shares that may be issued
under Metrocall's 1996 Stock Option Plan is approved (see "AMENDMENT TO INCREASE
THE NUMBER OF SHARES THAT MAY BE ISSUED UNDER METROCALL'S 1996 STOCK OPTION
PLAN"), and 1,000,000 shares may be reserved for issuance if the proposal to
increase the number of shares that may be issued under Metrocall's Employee
Stock Purchase Plan (see "AMENDMENT TO INCREASE THE NUMBER OF SHARES THAT MAY BE
ISSUED UNDER METROCALL'S EMPLOYEE STOCK PURCHASE PLAN"). Accordingly, the
additional shares will be necessary to complete the Merger and other recent
acquisitions and to reserve shares under Metrocall's 1996 Stock Option Plan and
Metrocall's Employee Stock Purchase Plan.
 
     The Board of Directors believes it to be in the best interests of Metrocall
to authorize additional shares of Metrocall Common Stock to provide flexibility
for corporate action in the future. In addition, management believes that the
availability of additional authorized shares for issuance from time to time in
the Board's discretion in connection with possible future financings, investment
opportunities, acquisitions of other companies, stock splits, dividends or
option grants or for other corporate purposes is desirable in order to avoid
repeated separate amendments to the Metrocall Certificate and the delay and
expense incurred in holding meetings of stockholders to approve such amendments.
 
     No further authorization by vote of the stockholders will be solicited for
the issuance of the additional shares of Metrocall Common Stock proposed to be
authorized, except as might be required by law, regulatory authorities or rules
of the NSM or any stock exchange on which Metrocall's shares may then be listed.
The stockholders of Metrocall do not have any preemptive right to purchase or
subscribe for any part of any new or additional issuance of Metrocall's
securities. Further issuances of Metrocall Common Stock by Metrocall may be
dilutive to its stockholders.
 
     The affirmative vote of a majority of the Metrocall Common Stock
outstanding and entitled to vote as of the record date is required to approve
the amendment to the Metrocall Certificate. The Board of Directors considers
this amendment to be advisable and in the best interests of Metrocall and its
stockholders and recommends that such stockholders vote FOR approval and
adoption of the Charter Amendment.
 
                                       73
<PAGE>   85
 
         AMENDMENT TO INCREASE THE NUMBER OF SHARES THAT MAY BE ISSUED
                    UNDER METROCALL'S 1996 STOCK OPTION PLAN
 
     The Board of Directors proposes that the stockholders of Metrocall approve
an amendment (the "Option Plan Amendment") to the Metrocall, Inc. 1996 Stock
Option Plan, as amended (the "Plan"). The Plan became effective April 5, 1996,
pursuant to the approval of the stockholders of Metrocall. On February 5, 1997,
the Metrocall Board adopted a restated and amended version of the Plan, which
was approved by the stockholders. The Option Plan Amendment, attached hereto as
Exhibit E, increases the number of shares of Metrocall Common Stock authorized
for issuance under the Plan from 2,000,000 shares to 4,000,000 shares to provide
sufficient stock to honor options granted by ProNet that will be converted into
options to acquire Metrocall Common Stock as a result of the Merger, and for
other appropriate grants. See "THE MERGER AGREEMENT AND TERMS OF THE
MERGER -- Treatment of Stock Options." The following summary description of the
Plan is qualified in its entirety by reference to the full text of the Plan
which is included in an exhibit incorporated by reference herein.
 
GENERAL
 
     Purpose.  The Plan offers eligible employees and non-employee directors the
opportunity to purchase shares of Metrocall Common Stock. The Plan is intended
to encourage employees and non-employee directors to acquire an equity interest
in Metrocall, which thereby will create a stronger incentive to expend maximum
effort for the growth and success of Metrocall and its subsidiaries. Funds
received by Metrocall under the Plan may be used for any general corporate
purpose.
 
     Eligibility.  All employees of Metrocall and certain subsidiaries and
nonemployee directors ("Eligible Directors") are eligible to participate in the
Plan. As of June 30, 1997, there were 2,059 employees and seven Eligible
Directors eligible to receive grants under the Plan.
 
     Shares Available Under the Plan.  As amended, subject to stockholder
approval, the Plan authorizes the issuance of up to 4,000,000 shares of
Metrocall Common Stock. The number of shares issuable under the Plan will be
adjusted for stock dividends, stock splits, reclassifications and other changes
affecting Metrocall Common Stock. If any option granted under the Plan expires
or terminates prior to exercise in full, the shares subject to that option shall
be available for future grants under the Plan. The maximum number of shares that
may be acquired under the Plan by any individual is 750,000 shares, subject to
adjustment for stock dividends, stock splits, reclassifications, corporate
transactions or other changes affecting Metrocall Common Stock. Because the Plan
provides for discretionary grants of options, the specific amounts to be granted
to particular persons cannot be determined in advance.
 
     Administration.  The Plan is administered by the Metrocall Board of
Directors or the Compensation Committee of the Metrocall Board (the
"Committee"). The Committee has the authority and discretion to select employees
to participate in the Plan, to grant options to employees under the Plan, to
specify the terms and conditions of options granted to employees (within the
limitations of the Plan) and to otherwise interpret and construe the terms of
the Plan and any agreements governing options granted under the Plan. The
Committee has no discretion over the options granted to Eligible Directors.
 
OPTIONS GRANTED UNDER THE PLAN
 
     General.  All options granted under the Plan will be evidenced by a written
agreement setting forth the terms and conditions governing the option. The
Committee has broad discretion to determine the timing, amount, exercisability
and other terms and conditions of options granted to employees, but shall have
no discretion over the terms and conditions of options granted to Eligible
Directors. No options granted under the Plan are assignable or transferable,
other than by will or in accordance with the laws of descent and distribution.
 
     Options Granted to Employees.  Both incentive stock options and
non-statutory stock options are available for employees under the Plan. For
incentive stock options, the option price will be not less than the fair market
value of a share of Metrocall Common Stock on the date the option is granted.
However, if the
 
                                       74
<PAGE>   86
 
employee receiving the option is a more than 10% owner of Metrocall Common
Stock, the option price will not be less than the greater of par value or 110%
of the fair market value of a share of Metrocall Common Stock on the date the
option is granted. For non-qualified options, the option price will be not less
than the par value of the Metrocall Common Stock. The closing price of a share
of Metrocall Common Stock, as reported on the NSM on September 19, 1997 was
$6.94.
 
     Formula Options Granted to Directors.  All options granted to Eligible
Directors will be non-qualified options. On the effective date of the Plan, all
Eligible Directors were granted an initial option to purchase 10,000 shares of
Metrocall Common Stock. Thereafter, every Eligible Director will be granted an
initial option to purchase 10,000 shares of Metrocall Common Stock at the time
such Eligible Director commences service on the Metrocall Board of Directors.
Subsequently, each Eligible Director who received an initial grant of an option
shall receive an additional option to purchase 1,000 shares of Metrocall Common
Stock on each anniversary of the initial option, provided that the director
continues to be an Eligible Director on each anniversary date. Options granted
to Eligible Directors will become fully vested six months after the date of
grant. The exercise price for options granted to Eligible Directors will be the
fair market value of the Metrocall Common Stock on the date the option is
granted.
 
     Discretionary Grants to Directors.  The Plan provides that the full
Metrocall Board of Directors can make grants to any and all directors in its
discretion. The full Metrocall Board of Directors is also given the authority to
amend formula grants as it deems appropriate.
 
     Exercise.  Options granted under the Plan to employees or Eligible
Directors may be exercised by delivery to the Committee of a written notice of
exercise. The notice must specify the number of shares being exercised and must
be accompanied by payment in full of the option price for the shares being
exercised (unless the optionee's written notice of exercise directs that the
stock certificates for the shares issued upon the exercise be delivered to a
licensed broker acceptable to Metrocall as the agent for the optionee and at the
time the stock certificates are delivered to the broker, the broker tenders to
Metrocall cash or cash equivalents acceptable to Metrocall equal to the exercise
price).
 
     The option price may be paid as permitted by the option agreement, (a) in
cash or certified check; (b) by tendering shares of Metrocall Common Stock that
the optionee has held for at least 6 months or acquired under an option granted
not less than 6 months prior and that shall be valued at the fair market value
on the date of exercise; or (c) any combination of these methods. An optionee
will not have any of the rights of a stockholder until payment in full for the
shares is received and a stock certificate is issued. In addition, with respect
to options granted to employees, options may be exercised by any other method
that the Committee prescribes.
 
     For options granted to employees, the Committee may prescribe in the option
agreement that the optionee may elect to satisfy any federal, state or local
withholding tax requirements by directing Metrocall to apply shares of Metrocall
Common Stock to which the optionee is entitled as a result of the exercise of
the option in order to satisfy such withholding requirements.
 
     Termination of Service.  The Committee has discretion to fix the period in
which options granted to employees may be exercised after termination of
employment. Vested options granted to Eligible Directors remain exercisable for
the remaining term of the option (see "Term of Options," below).
 
     Term of Options.  Each option granted under the Plan will terminate no
later than 10 years after the date the option is granted. However, options
intended to be incentive stock options granted to employees under the Plan will
expire no later than 5 years after the date of the grant if the option is
granted to an employee who owns (or is deemed to own) more than 10% of the
outstanding Metrocall Common Stock.
 
AMENDMENT OR TERMINATION OF THE PLAN
 
     The Metrocall Board of Directors may amend or terminate the Plan at any
time and from time to time; provided, however, that no amendment may, without
the approval of a majority of the stockholders of Metrocall, amend the
provisions governing incentive stock options other than as permitted under the
Code. The Plan will terminate no later than 10 years after its effective date.
 
                                       75
<PAGE>   87
 
TAX CONSEQUENCES
 
     The following generally describes the federal income tax consequences under
current provisions and interpretations of the Code of options granted under the
Plan. It does not purport to be complete. In particular, this general
description does not discuss the applicability of the income tax laws of any
state or foreign country.
 
     There are no federal income tax consequences to optionees or Metrocall upon
the grant of an option under the Plan. Generally, upon the exercise of a
nonqualified stock option (an "NQSO"), an optionee will recognize ordinary
compensation income equal to the fair market value of the Metrocall Common Stock
at the time of exercise minus the exercise price of the option, and Metrocall
generally can take an equal federal income tax deduction. When the optionee
sells shares acquired by exercising an NQSO, the optionee generally will realize
a short-term or long-term capital gain or loss, depending on the length of the
holding period, but Metrocall cannot take any tax deduction in connection with
such sale.
 
     Optionees will not be subject to federal income taxation when exercising
incentive stock options ("ISOs") granted under the Plan, and Metrocall will not
receive a federal income tax deduction by reason of such exercise. However, the
amount by which the fair market value of the shares at the time of exercise
exceeds the exercise price is an item of tax preference as to which the optionee
might have to pay alternative minimum tax. An optionee who sells shares acquired
by exercising an ISO after the later of one year after the exercise or two years
after the grant of the ISO generally will have long-term capital gain or loss
upon sale equaling the difference between the amount realized on the sale and
the exercise price, but Metrocall cannot take any tax deduction in connection
with such sale.
 
     If the optionee sells the ISO stock in a "disqualifying disposition" (that
is, within one year from the date of exercise of the ISO or within two years
from the date of the ISO grant), the optionee generally will recognize ordinary
compensation income equal to the lesser of (i) the fair market value of the
shares on the date of exercise of the option minus the exercise price or (ii)
the amount realized on the sale of the shares minus the exercise price. In the
case of a disqualifying disposition where a loss, if sustained, would not be
recognized (i.e., a gift), the optionee will recognize ordinary income equal to
the fair market value of the shares on the date of exercise minus the exercise
price. Any amount realized on a disqualifying disposition in excess of the
amount treated as ordinary compensation income (or any loss realized) will be a
long-term or a short-term capital gain (or loss), depending upon the length of
time the optionee held the shares. Metrocall can generally take a tax deduction
on a disqualifying disposition corresponding to the ordinary compensation income
the optionee recognizes but cannot deduct the amount of the capital gains.
 
     If an optionee pays the exercise price of either an NQSO or an ISO by
turning in previously-owned shares, the optionee will not realize additional
gain or loss because of the surrender, but (i) the number of new shares received
equal to the number of shares surrendered will retain the existing tax basis and
holding period of the surrendered shares; (ii) if the option so exercised is an
NQSO, the amount of both the optionee's ordinary compensation income and
Metrocall's deduction will equal the fair market value of the additional shares
received (less any cash paid upon such exercise), and the optionee's tax basis
in these additional shares will equal their fair market value; (iii) if the
option so exercised is an ISO, the additional shares received will have a tax
basis of zero unless cash was paid to complete such exercise, in which case the
optionee's tax basis in the additional shares received will equal the cash the
optionee paid upon such exercise; and (iv) the optionee's holding period for the
additional shares received will begin on the day after the date of exercise for
capital gain purposes (regardless of the type of option being exercised) and
will begin upon the date of transfer of the additional shares to the optionee
for purposes of the ISO period requirements. If, in exercising an ISO, an
optionee surrenders shares received upon a previous exercise of an ISO before
the applicable incentive stock option holding period for such shares has been
satisfied, the surrender of such shares will be treated as a disqualifying
disposition, and the rules governing such dispositions, as described above, will
apply to determine the amount of the optionee's income and Metrocall's
deduction.
 
                                       76
<PAGE>   88
 
STOCKHOLDER APPROVAL
 
     Approval of the Option Plan Amendment will require that the votes cast in
favor of the Option Plan Amendment exceed the votes cast against the Option Plan
Amendment. Abstentions and broker non-votes will not be counted for purposes of
the Option Plan Amendment. Failure of the stockholders to approve the Option
Plan Amendment will cause the rescission of the Option Plan Amendment.
 
NEW PLAN BENEFITS
 
     No additional options or awards have been granted under the Plan that are
conditioned upon the approval of the Option Plan Amendment.
 
     The Board of Directors of Metrocall has recommended that the stockholders
vote FOR the proposal to approve the Option Plan Amendment.
 
                                       77
<PAGE>   89
 
         AMENDMENT TO INCREASE THE NUMBER OF SHARES THAT MAY BE ISSUED
                 UNDER METROCALL'S EMPLOYEE STOCK PURCHASE PLAN
 
     The Metrocall Board of Directors proposes that the stockholders of
Metrocall approve an amendment (the "ESPP Amendment") to the Metrocall, Inc.
Employee Stock Purchase Plan (the "ESPP"). The ESPP Amendment, attached hereto
as Exhibit F, increases the number of shares of Metrocall Common Stock
authorized for issuance under the ESPP from 300,000 shares to 1,000,000 shares.
The following is a summary of the ESPP, as amended. This summary description is
a fair and complete summary of the ESPP; however, it is qualified in its
entirety by reference to the full text of the ESPP.
 
  General
 
     Purpose.  The ESPP offers eligible employees the opportunity to purchase
shares of Metrocall Common Stock through after-tax payroll withholding or direct
contributions. The ESPP is intended to permit employees to acquire an equity
interest in Metrocall, which thereby will create a stronger incentive to expend
maximum effort for the growth and success of Metrocall and its subsidiaries.
Funds received by Metrocall under the ESPP may be used for any general corporate
purpose.
 
     Eligibility.  All common law employees of Metrocall and certain
subsidiaries except employees who are (a) employed by Metrocall for less than
one month at the beginning of the Offering Period, (b) scheduled to work fewer
than five months in a calendar year, (c) scheduled to work fewer than 20 hours
per week, or holders of more than 5% of the common stock of Metrocall and its
subsidiaries, either directly or by attribution are eligible to participate in
the ESPP. As of June 30, 1997, there were approximately 2,059 employees
currently eligible to participate in the ESPP.
 
     Shares Available Under the ESPP.  As amended, subject to stockholder
approval, the ESPP authorizes the issuance of up to 1,000,000 shares of
Metrocall Common Stock from authorized but unissued shares or from stock owned
by Metrocall, including stock purchased on the market. The number of shares
issuable under the ESPP will be adjusted for stock dividends, stock splits,
reclassifications and other changes affecting the Metrocall Common Stock.
Because the ESPP permits participants to choose their own level of
participation, subject to overall tax and program limits, the specific amounts
to be granted to particular persons cannot be determined in advance.
 
     Administration.  The ESPP is administered by the Compensation Committee of
the Metrocall Board of Directors (the "Compensation Committee"). The
Compensation Committee has the authority and discretion to specify the terms and
conditions of options granted to employees (within the limitations of the ESPP)
and to otherwise interpret and construe the terms of the ESPP and any agreements
governing options granted under the ESPP.
 
  Options Granted Under the ESPP
 
     General.  All options granted under the ESPP will be evidenced by
participation agreements. The Committee has broad discretion to determine the
timing, amount, exercisability, and other terms and conditions of options
granted to employees. No options granted or funds accumulated under the ESPP are
assignable or transferable, other than by will or in accordance with the laws of
descent and distribution. Offering Periods for the ESPP are semi-annual.
 
     Election to Participate.  Employees must elect before the beginning of a
given Offering Period to participate.
 
     Exercise Price.  The exercise price for options under the ESPP will be
equal to the lesser of 85% of the fair market value on the first day of the
Offering Period and 85% of the fair market value on the last day of the Offering
Period. No participant can purchase more than $25,000 worth of Metrocall Common
Stock in all Offering Periods ending during the same calendar year. The closing
price of a share of Metrocall Common Stock, as reported on September 19, 1997
was $6.94.
 
                                       78
<PAGE>   90
 
     Exercise.  Options granted under the ESPP to employees will be
automatically exercised as of the last day of the Offering Period, unless the
participant has requested withdrawal of his payroll contributions at least
thirty days earlier. The number of shares to be purchased will be determined by
dividing the dollars accumulated through payroll withholding by the exercise
price and rounding down to the nearest whole number of shares.
 
     Termination of Service.  If an employee's employment is involuntarily
terminated, the employee's account will be distributed, and the employee will
immediately cease to participate in the ESPP. If an employee retires or
voluntarily terminates employment, the employee may elect to continue in the
ESPP until the close of the current payroll deduction period or receive an
immediate distribution of his or her account. If an employee becomes disabled,
is laid off, or is on an authorized leave of absence, he or she may elect to
continue to participate and, upon return to active service, may elect to (i)
make up any deficiency in his or her account, (ii) not make up any deficiency,
or (iii) receive a full distribution of his or her account. If an employee dies,
his or her legal representative may elect to continue the employee's account
until the close of the current payroll deduction period or receive a full
distribution from the employee's account.
 
     Stockholder Approval.  In general, stockholder approval is only required
for changes to the extent necessary to preserve the ESPP's status as a plan
under Section 423 of the Code.
 
  Amendment or Termination of the ESPP
 
     Subject to the foregoing, the Board of Directors may amend or terminate the
ESPP at any time and from time to time. Absent extension by the Board with
stockholder approval, the ESPP will terminate no later than April 1, 2001.
 
TAX CONSEQUENCES
 
     The following summarizes certain federal income tax consequences of
participation in the ESPP. It does not cover employment taxes except as
specified, nor does it cover other federal, state, local, or foreign tax
consequences, if any.
 
     Rights granted under the ESPP are intended to quality for the favorable
federal income tax treatment provided by an employee stock purchase plan that
qualifies under Section 423 of the Code.
 
     A participant's withheld compensation will be post-tax. In other words, the
participant will be taxed on amounts withheld for the purchase of shares of
Metrocall Common Stock as if he had instead received his full salary or wages.
Other than this, no income will be taxable to a participant until disposition of
the shares acquired, and the method of taxation will depend upon how long the
shares were held before disposition.
 
     If the purchased shares of Common Stock are disposed of more than two years
after the beginning of the applicable offering period (July 1 or January 1) and
more than one year after the exercise date or if the participant dies at any
time while holding the stock, then the lesser of (a) the excess of the fair
market value of the stock at the time of such disposition or death over the
purchase price or (b) 15% of fair market value of the stock as of the beginning
of the applicable offering period will be treated as ordinary income. Any
further gain or any loss will be taxed as a long-term capital gain or loss. Net
long-term capital gains for individuals are currently subject to a maximum
marginal federal income tax rate that is less than the maximum marginal rate for
ordinary income.
 
     If the participant sells or disposes of the stock before the expiration of
either of the holding periods described above (a 'disqualifying disposition'),
then the excess of the fair market value of the stock on the exercise date over
the exercise price will be treated as ordinary income at the time of such
disposition. Metrocall may, in the future, be required to withhold income taxes
relating to such ordinary income from other payments made to the participant.
The balance of any gain on a sale will be treated as capital gain. Even if the
stock is sold for less than its fair market value on the exercise date, the same
amount of ordinary income is attributed to the participant, and a capital loss
is recognized equal to the difference between the sales price and the fair
market value of the stock on the exercise date. Any capital gain or loss will be
long- or short-term depending on whether the stock has been held for more than
one year.
 
                                       79
<PAGE>   91
 
     There are no federal income tax consequences to Metrocall by reason of the
grant or exercise of rights under the Plan. Metrocall will, in general, be
entitled to a deduction to the extent amounts are taxed as ordinary income to a
participant by reason of a disqualifying disposition of the purchased shares of
stock, but will not be entitled to a deduction in respect of the ordinary income
realized by a participant upon a later disposition, or realized upon death.
Metrocall's deduction may be limited under Code Section 162(m) and may be
subject to disallowance for failure to report the optionee's income (which could
arise if an optionee does not notify Metrocall of the sale of stock in a
disqualifying disposition).
 
  New Plan Benefits
 
     Benefits to be awarded under the ESPP to employees vary depending upon the
elections of the participants as to their level of participation. No
non-employee directors are eligible to participate. No additional benefits have
been granted under the ESPP that are conditioned upon approval of the ESPP
Amendment.
 
STOCKHOLDER APPROVAL
 
     Approval of the ESPP Amendment will require that the votes cast in favor of
the ESPP Amendment exceed the votes cast against the ESPP Amendment. Abstentions
and broker non-votes will not be counted for purposes of the ESPP Amendment.
Failure of the stockholders to approve the Employee Plan Amendment will cause
the rescission of the Employee Plan Amendment.
 
     The Board of Directors of Metrocall has recommended that the stockholders
vote FOR the proposal to approve the ESPP Amendment.
 
                                 OTHER MATTERS
 
     As of the date of this Joint Proxy Statement/Prospectus, Metrocall and
ProNet are not aware of any matters, other than those referred to herein, to be
presented for action by the stockholders at the respective Stockholders
Meetings. If, however, any other appropriate business should properly be
presented at the respective Stockholders Meetings, the persons named in the
proxies will vote the shares represented thereby, pursuant to their
discretionary authority, in accordance with their best judgment.
 
                              INDEPENDENT AUDITORS
 
     Metrocall expects that representatives of Arthur Andersen LLP, Metrocall's
independent public accountants, will be present at the Metrocall Meeting, will
have the opportunity to make a statement if they so desire, and will be
available to respond to appropriate questions.
 
     ProNet anticipates that representatives of Ernst & Young LLP, ProNet's
independent auditors, will be present at the ProNet Meeting, will have the
opportunity to make a statement if they desire to do so, and will be available
to respond to appropriate questions.
 
                                 LEGAL MATTERS
 
     Wilmer, Cutler and Pickering, Washington, D.C. will render an opinion with
respect to the validity of the Metrocall Common Stock to be issued to ProNet's
stockholders in connection with the Merger and will pass upon certain other
legal matters on behalf of Metrocall. Vinson & Elkins L.L.P., Dallas, Texas will
pass upon the Federal income tax consequences in connection with the Merger on
behalf of ProNet.
 
                                       80
<PAGE>   92
 
                      [THIS PAGE INTENTIONALLY LEFT BLANK]
<PAGE>   93
 
                                                                       EXHIBIT A
================================================================================
 
                          AGREEMENT AND PLAN OF MERGER
 
                                    BETWEEN
 
                                METROCALL, INC.
 
                                      AND
 
                                  PRONET INC.
 
                                 AUGUST 8, 1997
 
================================================================================
<PAGE>   94
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
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                                                                                        ----
<S>                                                                                     <C>
ARTICLE I
THE MERGER...........................................................................      1
  Section 1.1 The Merger.............................................................      1
  Section 1.2 Effective Time.........................................................      2
  Section 1.3 Certificate of Incorporation and By-Laws...............................      2
  Section 1.4 Directors and Officers of Surviving Corporation........................      2
ARTICLE II
CONVERSION OF SHARES; EXCHANGE PROCEDURES............................................      2
  Section 2.1 Conversion of Shares...................................................      2
  Section 2.2 Conversion Ratio.......................................................      3
  Section 2.3 Exchange of Certificates...............................................      3
  Section 2.4 PN Option Plans........................................................      4
  Section 2.5 PN Subordinated Notes..................................................      5
  Section 2.6 Termination of Rights Plan.............................................      5
ARTICLE III
REPRESENTATIONS AND WARRANTIES OF PN.................................................      5
  Section 3.1 Organization...........................................................      5
  Section 3.2 Capitalization.........................................................      6
  Section 3.3 Authorization; Validity of Agreement; PN Action........................      6
  Section 3.4 Consents and Approvals; No Violations; Licenses........................      7
  Section 3.5 SEC Reports and Financial Statements...................................      8
  Section 3.6 No Undisclosed Liabilities.............................................      8
  Section 3.7 Absence of Certain Changes.............................................      9
  Section 3.8 Employee Benefit Plans; ERISA; Labor...................................      9
  Section 3.9 Litigation.............................................................     10
  Section 3.10 No Default; Compliance with Applicable Laws...........................     10
  Section 3.11 Taxes.................................................................     11
  Section 3.12 Environmental Matters.................................................     11
  Section 3.13 Insurance.............................................................     12
  Section 3.14 Proxy Statement; Registration Statement; Other Information............     12
  Section 3.15 Transactions with Affiliates..........................................     12
  Section 3.16 Share Ownership.......................................................     12
  Section 3.17 Brokers...............................................................     12
</TABLE>
 
                                        i
<PAGE>   95
 
<TABLE>
<CAPTION>
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                                                                                        ----
<S>                                                                                     <C>
ARTICLE IV
REPRESENTATIONS AND WARRANTIES OF MC.................................................     12
  Section 4.1 Organization...........................................................     13
  Section 4.2 Capitalization.........................................................     13
  Section 4.3 Authorization; Validity of Agreement; MC Action........................     14
  Section 4.4 Consents and Approvals; No Violations; Licenses........................     14
  Section 4.5 SEC Reports and Financial Statements...................................     15
  Section 4.6 No Undisclosed Liabilities.............................................     15
  Section 4.7 Absence of Certain Changes.............................................     16
  Section 4.8 Employee Benefit Plans; ERISA; Labor...................................     16
  Section 4.9 Litigation.............................................................     17
  Section 4.10 No Default; Compliance with Applicable Laws...........................     17
  Section 4.11 Taxes.................................................................     18
  Section 4.12 Environmental Matters.................................................     18
  Section 4.13 Insurance.............................................................     18
  Section 4.14 Proxy Statement; Registration Statement; Other Information............     18
  Section 4.15 Transactions with Affiliates..........................................     19
  Section 4.16 Share Ownership.......................................................     19
  Section 4.17 Brokers...............................................................     19
ARTICLE V
COVENANTS............................................................................     19
  Section 5.1 Interim Operations of PN and MC........................................     19
  Section 5.2 Stockholder Approval; Meetings; Etc. ..................................     21
  Section 5.3 Proxy Statement, Registration Statement, Etc. .........................     22
  Section 5.4 Compliance with the Securities Act.....................................     22
  Section 5.5 Nasdaq Listing.........................................................     23
  Section 5.6 Approvals and Consents; Cooperation....................................     23
  Section 5.7 Access to Information..................................................     23
  Section 5.8 [Reserved.]............................................................     24
  Section 5.9 No Solicitation by PN..................................................     24
  Section 5.10 Brokers or Finders....................................................     25
  Section 5.11 Publicity.............................................................     25
  Section 5.12 Notification of Certain Matters.......................................     25
  Section 5.13 Directors' and Officers' Insurance and Indemnification................     25
  Section 5.14 Expenses..............................................................     26
  Section 5.15 Further Assurances....................................................     26
ARTICLE VI
CONDITIONS...........................................................................     27
  Section 6.1 Conditions to Each Party's Obligation To Effect the Merger.............     27
  Section 6.2 Conditions to Obligations of PN to Effect the Merger...................     27
  Section 6.3 Conditions to Obligations of MC to Effect the Merger...................     28
</TABLE>
 
                                       ii
<PAGE>   96
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
ARTICLE VII
TERMINATION..........................................................................     29
  Section 7.1 Termination............................................................     29
  Section 7.2 Termination Fee........................................................     30
  Section 7.3 Effect of Termination..................................................     30
ARTICLE VIII
MISCELLANEOUS........................................................................     31
  Section 8.1 Amendment..............................................................     31
  Section 8.2 Nonsurvival of Representations and Warranties..........................     31
  Section 8.3 Notices................................................................     31
  Section 8.4 Headings...............................................................     32
  Section 8.5 Interpretation.........................................................     32
  Section 8.6 Counterparts...........................................................     32
  Section 8.7 Entire Agreement; Third Party Beneficiaries............................     32
  Section 8.8 Governing Law..........................................................     32
  Section 8.9 Assignment.............................................................     32
  Section 8.10 Further Assurances....................................................     32
</TABLE>
 
ANNEXES
 
  Annex A
  Directors of the Surviving Corporation
 
  Annex B
  Conversion Ratio Adjustments
 
                                       iii
<PAGE>   97
 
SCHEDULES
 
<TABLE>
<S>                     <C>
PN DISCLOSURE LETTER:
Schedule 3.1      --    Subsidiaries of PN
Schedule 3.2(a)   --    PN Capitalization
Schedule 3.2(b)   --    Liens
Schedule 3.4(a)   --    PN Consents and Approvals
Schedule 3.4(c)   --    PN FCC Authorizations
Schedule 3.5(a)   --    SEC Reports
Schedule 3.5(b)   --    June 30 Financial Statements
Schedule 3.6      --    Undisclosed Liabilities
Schedule 3.7      --    Certain Changes
Schedule 3.8      --    Employee Benefit Plans
Schedule 3.9      --    Litigation
Schedule 3.11     --    Taxes
Schedule 3.15     --    Transactions with Affiliates
Schedule 5.1(a)   --    Permitted Activities by PN
 
MC DISCLOSURE LETTER:
Schedule 4.1      --    Subsidiaries of MC
Schedule 4.2(a)   --    MC Capitalization
Schedule 4.2(b)   --    Liens
Schedule 4.4      --    MC Consents and Approvals
Schedule 4.6      --    Undisclosed Liabilities
Schedule 4.7      --    Certain Changes
Schedule 4.8      --    Employee Benefit Plans
Schedule 4.9      --    Litigation
Schedule 4.11     --    Taxes
Schedule 4.15     --    Transactions with Affiliates
Schedule 4.16     --    Share Ownership
Schedule 4.17     --    MC Financial Advisors
Schedule 5.1(b)   --    Permitted Activities by MC
</TABLE>
 
                                       iv
<PAGE>   98
 
                             INDEX OF DEFINED TERMS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        -----
<S>                                                                                     <C>
Affiliates.............................................................................    22
Amendment Proposal.....................................................................    21
Annualized Cash Flow...................................................................   B-2
CERCLA.................................................................................    11
Change of Control......................................................................    23
Claim..................................................................................    25
Closing................................................................................     1
Closing Date...........................................................................     2
Code...................................................................................     1
Communications Act.....................................................................     7
Confidentiality Agreement..............................................................    24
Conversion Ratio.......................................................................     3
D&O Insurance..........................................................................    26
Deferred Settlement Costs..............................................................   B-2
DGCL...................................................................................     1
Effective Time.........................................................................     2
Environmental Law......................................................................    11
ERISA..................................................................................     9
Exchange Act...........................................................................     7
Exchange Agent.........................................................................     3
FCC....................................................................................     7
Final Regulatory Order.................................................................    27
GAAP...................................................................................     8
Governmental Entity....................................................................     7
HSR Act................................................................................     7
Indemnified Party......................................................................    25
Indenture..............................................................................     5
IRS....................................................................................     9
Material Adverse Effect................................................................     5
Materials of Environmental Concern.....................................................    12
MC.....................................................................................     1
MC Benefit Plans.......................................................................    16
MC ERISA Affiliate.....................................................................    16
MC Fairness Opinion....................................................................    14
MC Financial Advisor...................................................................    14
MC Financial Statements................................................................    15
MC Licenses............................................................................    15
MC Material Agreements.................................................................    14
MC Option Plan.........................................................................     4
MC Options.............................................................................    13
MC Replacement Options.................................................................     4
MC SEC Documents.......................................................................    15
MC Shares..............................................................................     1
MC Voting Agreement....................................................................     1
Measurement Date.......................................................................   B-2
Meeting................................................................................    21
Merger.................................................................................     1
Merger Consideration...................................................................     2
Merger Documents.......................................................................     2
</TABLE>
 
                                        v
<PAGE>   99
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        -----
<S>                                                                                     <C>
Merger Proposal........................................................................    21
New Pager Inventory Requirement........................................................   B-2
Notes..................................................................................     5
Plaintiff Class........................................................................     2
Plaintiffs' Settlement.................................................................     2
Plaintiffs' Litigation.................................................................     2
PN.....................................................................................     1
PN Acquisition Proposal................................................................    24
PN Benefit Plans.......................................................................     9
PN Certificates........................................................................     3
PN Employee Agreements.................................................................     9
PN ERISA Affiliate.....................................................................     9
PN Fairness Opinion....................................................................     7
PN Financial Advisor...................................................................     7
PN Financial Statements................................................................     8
PN Licenses............................................................................     7
PN Material Agreements.................................................................     7
PN Option..............................................................................     4
PN Option Agreement....................................................................     1
PN Option Plans........................................................................     4
PN Shares..............................................................................     1
Proxy Statement........................................................................    12
Registration Statement.................................................................    12
Regulatory Filings.....................................................................    23
Regulatory Order.......................................................................    27
Relevant Net Liabilities...............................................................   B-2
Rights.................................................................................     1
Rights Plan............................................................................     1
Scheduled Shares.......................................................................     6
SEC....................................................................................     8
Securities Act.........................................................................     6
Series A Preferred.....................................................................    13
Series B Preferred.....................................................................    13
State Authority........................................................................     7
Subsidiary.............................................................................     5
Surviving Corporation..................................................................     2
Target Cash Flow.......................................................................   B-2
Target Net Liabilities.................................................................   B-2
Tax Return.............................................................................    11
Taxes..................................................................................    11
Voting Debt............................................................................     6
</TABLE>
 
                                       vi
<PAGE>   100
 
                          AGREEMENT AND PLAN OF MERGER
 
     AGREEMENT AND PLAN OF MERGER, dated as of August 8, 1997 (this
"Agreement"), between METROCALL, INC., a Delaware corporation ("MC"), and PRONET
INC., a Delaware corporation ("PN").
 
     WHEREAS, the Boards of Directors of MC and PN have determined that it is in
the best interests of their respective stockholders to consummate a strategic
combination of their respective businesses upon the terms and subject to the
conditions set forth herein;
 
     WHEREAS, it is intended that the strategic business combination be
accomplished by a merger of PN with and into MC (the "Merger") pursuant to which
each issued and outstanding share of common stock of PN, $.01 par value (the "PN
Shares"), will be converted into shares of common stock of MC, $.01 par value
("MC Shares");
 
     WHEREAS, in furtherance of the strategic business combination, and as a
condition to MC entering into this Agreement and incurring the obligations set
forth herein, concurrently with the execution and delivery of this Agreement, MC
and PN have entered into an Option Agreement (the "PN Option Agreement")
pursuant to which PN has agreed, on the terms and subject to the conditions
thereof, to grant MC an option to purchase certain PN Shares;
 
     WHEREAS, as a condition to PN's entering into this Agreement and incurring
the obligations set forth herein, concurrently with the execution and delivery
of this Agreement, certain stockholders of MC have entered into a voting
agreement (the "MC Voting Agreement") agreeing to vote for the Merger and
related transactions;
 
     WHEREAS, the Board of Directors of PN has (i) adopted this Agreement,
resolved to submit this Agreement for approval by the stockholders of PN
pursuant to Section 251 of the Delaware General Corporation Law (the "DGCL"),
and resolved to recommend that all stockholders of PN approve and adopt this
Agreement and the Merger, (ii) duly approved the business combination
contemplated by this Agreement and the PN Option Agreement so as to render
inapplicable thereto the provisions of Section 203 of the DGCL; and (iii)
resolved to amend the Rights Agreement, dated as of April 5, 1995, between PN
and Chemical Shareholder Services Group, Inc., as Rights Agent (the "PN Rights
Plan"), to provide that the PN Rights Plan and the preferred share purchase
rights ("Rights") issued thereunder shall terminate and be of no further force
or effect upon the consummation of the Merger;
 
     WHEREAS, the Board of Directors of MC has (i) adopted this Agreement,
resolved to submit this Agreement for approval by the stockholders of MC
pursuant to Section 251 of the DGCL, and resolved to recommend that all
stockholders of MC approve and adopt this Agreement and the Merger, and (ii)
duly approved the business combination contemplated by this Agreement, the PN
Option Agreement and the MC Voting Agreement so as to render inapplicable
thereto the provisions of Section 203 of the DGCL; and
 
     WHEREAS, for United States federal income tax purposes, it is intended that
the Merger provided for herein shall qualify as a reorganization under Section
368(a) of the Internal Revenue Code of 1986, as amended, and the rules and
regulations promulgated thereunder (the "Code"), and this Agreement is intended
to be and is adopted as a plan of reorganization within the meaning of Section
368 of the Code;
 
     NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth herein, the
parties hereto agree as follows:
 
                                   ARTICLE I
 
                                   THE MERGER
 
     Section 1.1  The Merger.  Upon the terms and subject to the conditions set
forth in Article VI hereof, and in accordance with the DGCL, PN shall be merged
with and into MC. The closing (the "Closing") of the Merger shall take place as
promptly as practicable but in no event later than the date that is two business
days after satisfaction or waiver of the conditions set forth in Article VI
(other than those relating to documents to
 
                                        1
<PAGE>   101
 
be delivered at the Closing); provided, that in no event will the Closing occur
before November 16, 1997. The date on which the Closing occurs is hereinafter
referred to as the "Closing Date." The Closing will be held at 10:00 a.m., local
time, on the Closing Date at the offices of Wilmer, Cutler & Pickering, 2445 M
Street, N.W., Washington, D.C. 20037. Following the Merger, the separate
corporate existence of PN will cease, and MC shall continue as the surviving
corporation (the "Surviving Corporation") and shall succeed to and assume all of
the rights and obligations of PN.
 
     Section 1.2  Effective Time.  Upon the Closing, the parties hereto shall
cause the Merger to be consummated by filing with the Secretary of State of the
State of Delaware a certificate of merger or other appropriate documents (in any
such case, the "Merger Documents") in such form as is required by, and executed
in accordance with, this Agreement and the relevant provisions of the DGCL (the
date and time of such filing being referred to herein as the "Effective Time").
The Merger shall have the effects set forth in Section 251 of the DGCL.
 
     Section 1.3  Certificate of Incorporation and By-Laws.  The Certificate of
Incorporation and By-Laws of MC, as in effect immediately prior to the Effective
Time, shall be the Certificate of Incorporation and By-Laws of the Surviving
Corporation.
 
     Section 1.4  Directors and Officers of Surviving Corporation.  (a) Upon the
Effective Time, the directors of the Surviving Corporation, and their
classification, shall be as set forth in Annex A.
 
          (b) PN agrees to request that the Board of Directors of PN, at a
meeting duly called and held, unanimously approve the election of directors
designated pursuant to this Section 1.4 and PN agrees to use its best efforts to
cause the election of such designees to be approved by the affirmative vote of
at least 66 2/3% of the members of the Board of Directors of PN who were
directors on the date that was two years prior to the date of this Agreement (or
whose election or nomination for election was previously so approved) and to
supply MC with a certificate of vote attesting to the foregoing. Failure of such
designees to be so approved shall be deemed to constitute a failure by PN to
perform and comply with an obligation hereunder sufficient to permit MC to
terminate this Agreement pursuant to Section 7.1 (d)(iii).
 
          (c) The officers of MC shall be the officers of the Surviving
Corporation and shall hold their offices from the Effective Time for such term
as is provided in the MC By-Laws.
 
                                   ARTICLE II
 
                   CONVERSION OF SHARES; EXCHANGE PROCEDURES
 
     Section 2.1  Conversion of Shares.  (a) Each PN Share that is issued and
outstanding immediately prior to the Effective Time (other than Shares held by
MC or any Subsidiary (as defined in Section 3.1) of MC) shall, by virtue of the
Merger and without any action on the part of the holder thereof, be converted
into the right to receive (i) such number of duly authorized, validly issued,
fully paid and nonassessable MC Shares equal to the Conversion Ratio (as defined
in Section 2.2) plus (ii) cash, if any, for fractional MC Shares pursuant to
Section 2.3(f) (collectively, the "Merger Consideration").
 
          (b) Each PN Share (i) held in the treasury of PN or by any Subsidiary
of PN and (ii) held by MC or any Subsidiary of MC immediately prior to the
Effective Time shall, by virtue of the Merger and without any action on the part
of the holder thereof, be canceled and retired and cease to exist, and no Merger
Consideration shall be issued in respect thereof.
 
          (c) Any rights to receive a PN Share which is required to be issued,
and has not been issued prior to the Effective Time, pursuant to Section 2.b of
the Memorandum of Understanding dated May 14, 1997 ("Plaintiffs' Settlement"),
between certain classes of Plaintiffs ("Plaintiff Class") and certain defendants
in the litigation in In re ProNet Inc. 1934 Act Securities Litigation, Master
File No. 3-96CV2116-P (N.D. Tex.); In re ProNet Inc. 1933 Act Securities
Litigation, Master File No. 3-96CV1795-P (N.D. Tex.); and Geatano Rainone, et
al. v. ProNet Inc., et al., No. 96-06509 (D.Ct., 14th Dist., Tex.)
(collectively, the "Plaintiffs' Litigation") shall be converted at the Effective
Time into the right to receive the same Merger Consideration as an outstanding
PN Share is entitled to receive under Section 2.1(a). MC agrees to cause the
 
                                        2
<PAGE>   102
 
Surviving Corporation to perform PN's obligations to the Plaintiff Class
pursuant to Section 2.d of the Plaintiffs' Settlement.
 
     Section 2.2  Conversion Ratio.  "Conversion Ratio" shall mean .90 as
adjusted pursuant to the adjustment provisions set forth in Annex B hereto. In
the event that, between the date of this Agreement and the Effective Time, the
number of issued and outstanding PN Shares or MC Shares shall have been changed
into a different number of shares or a different class of shares as a result of
a stock split, reverse stock split, stock dividend, spinoff, extraordinary
dividend, recapitalization, reclassification or other similar transaction with a
record date within such period, the Conversion Ratio shall be appropriately
adjusted.
 
     Section 2.3  Exchange of Certificates.  (a) Prior to the Effective Time, PN
and MC shall appoint ChaseMellon Shareholder Services, L.L.C. (or any other
commercial bank or trust company which shall be reasonably acceptable to PN and
MC) to act as exchange agent (the "Exchange Agent") to effect the exchange of
certificates representing the PN Shares as set forth in Section 2.1
(collectively, the "PN Certificates") for the Merger Consideration. The
Surviving Corporation shall deposit, or shall cause to be deposited, with the
Exchange Agent for the benefit of the holders of PN Shares for exchange in
accordance with this Article II, certificates representing MC Shares issuable
pursuant to Section 2.1 and funds in amounts necessary to make any cash payments
pursuant to Section 2.3(f).
 
     Additionally, subject to the provisions of this Section 2.3(a), MC 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 MC Share times the number of MC Shares evidenced by
certificates issued in respect of PN Shares pursuant to Section 2.1 that have
not theretofore been surrendered for exchange as provided herein.
 
          (b) Promptly after the Effective Time, the Surviving Corporation shall
cause the Exchange Agent to mail to each person who was, at the Effective Time,
a holder of record of a PN Certificate (i) a letter of transmittal which shall
specify that delivery shall be effected, and risk of loss and title to an PN
Certificate shall pass, upon (and only upon) proper delivery to the Exchange
Agent, and which shall be in such form and have such other provisions as the
Surviving Corporation may reasonably specify, and (ii) instructions for use in
effecting the surrender of such PN Certificate in exchange for a certificate
representing MC Shares to which such holder is entitled to pursuant to this
Article II. Upon surrender of a PN Certificate, together with such letter of
transmittal duly completed and validly executed in accordance with the
instructions thereto, and such other documents as may be reasonably required
pursuant to such instructions, the holder of such PN Certificate shall be
entitled to receive in exchange therefor, as soon as practicable after the
Effective Time, (i) a certificate representing that number of MC Shares to which
such holder of PN Shares shall have become entitled pursuant to the provisions
of this Article II, and (ii) if applicable, a check representing the amount of
cash to which such holder of PN Shares shall have become entitled pursuant to
the provisions of Section 2.3(f), and the PN Certificate so surrendered shall
forthwith be canceled. All payments in respect of PN Shares which are made in
accordance with the terms hereof shall be deemed to have been made in full
satisfaction of all rights pertaining to such PN Shares.
 
          (c) No dividends or other distributions declared with respect to MC
Shares and payable to the holders of record thereof after the Effective Time
shall be paid to the holder of any unsurrendered PN Certificate until the holder
thereof shall surrender such PN Certificate in accordance with Section 2.3(b).
Subject to the effect, if any, of applicable law, after the surrender and
exchange of a PN Certificate, there shall be paid to the holder of the
certificates evidencing MC Shares 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 PN Share to which such
holder is entitled pursuant to Section 2.3(f), the amount of dividends or other
distributions with a record date after the Effective Time theretofore paid with
respect to such MC Shares 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 MC Shares.
 
                                        3
<PAGE>   103
 
          (d) If any portion of the Merger Consideration (whether a certificate
representing MC Shares or a check representing cash payment pursuant to Section
2.3(f)) is to be issued or paid in a name other than that in which the PN
Certificate surrendered in exchange therefor is registered, it shall be a
condition to the issuance thereof that the PN Certificate so surrendered shall
be properly endorsed (or accompanied by an appropriate instrument of transfer)
and otherwise in proper form for transfer, and that the person requesting such
exchange shall pay to the Exchange Agent in advance any transfer or other taxes
required by reason of the issuance of a certificate representing MC Shares or a
check representing the cash payment pursuant to Section 2.3(f) in any name other
than that of the registered holder of the PN Certificate surrendered, or
required for any other reason, or shall establish to the reasonable satisfaction
of the Exchange Agent that such tax has been paid or is not payable.
 
          (e) On and after the Effective Time, the stock transfer books of PN
shall be closed and there shall be no further registration of transfers of the
PN Shares which were outstanding immediately prior to the Effective Time; the PN
Certificates representing PN Shares shall cease to have any rights with respect
to such PN Shares except as otherwise provided for herein or by applicable law;
and the MC Shares into which PN Shares have been converted pursuant to Section
2.1 hereof shall be deemed outstanding (subject to Section 2.3(c))
notwithstanding the failure of the holders thereof to surrender and exchange PN
Certificates as specified herein.
 
          (f) No certificates or scrip representing fractional MC Shares shall
be issued upon the surrender or exchange of PN Certificates, and, except
pursuant to this Section 2.3(f), no dividend, distribution or other payment with
respect to MC Shares shall be payable on or with respect to any fractional MC
Share and such fractional MC Share shall not entitle the owner thereof to vote
or to any other rights of a stockholder or creditor of PN. In lieu of any such
fractional MC Share, the Surviving Corporation shall pay to each stockholder of
PN who otherwise would be entitled to receive a fractional MC Share an amount in
cash determined by multiplying (i) the closing price of an MC Share on the
Nasdaq Stock Market on the trading day prior to the Closing by (ii) the
fractional MC Share interest to which such holder would otherwise be entitled.
 
          (g) At any time following the first anniversary of the Effective Time,
the Surviving Corporation may terminate its agreement with the Exchange Agent,
and thereafter holders of PN Certificates shall be entitled to look to the
Surviving Corporation (subject to abandoned property, escheat or other similar
laws) only as general creditors thereof with respect to the consideration
payable upon due surrender of their PN Certificates pursuant to the provisions
of this Article II. Notwithstanding the foregoing, neither the Surviving
Corporation nor the Exchange Agent shall be liable to any holder of a PN
Certificate for consideration delivered to a public official pursuant to
applicable abandoned property, escheat or similar laws.
 
     Section 2.4  PN Option Plans.  (a) Each outstanding option to purchase PN
Shares (each, a "PN Option") granted pursuant to PN's 1987 Stock Option Plan,
1995 Long-Term Incentive Plan and Non-Employee Director Stock Option Plan
(collectively, the "PN Option Plans"), and which has not vested prior to the
Effective Time, shall become fully exercisable and vested as of the Effective
Time.
 
          (b) Effective as of the Effective Time, each PN Option then
outstanding and not exercised shall be converted into an option to purchase a
number of MC Shares equal to the number of PN Shares subject to such PN Option
immediately prior to the Effective Time multiplied by the Conversion Ratio with
an exercise price equal to the exercise price for such PN Option immediately
prior to the Effective Time divided by the Conversion Ratio. PN will use its
reasonable best efforts to cause each holder of PN Options to agree to convert
his or her PN Options into options ("MC Replacement Options") issued under MC's
1996 Stock Option Plan (the "MC Option Plan"). Notwithstanding any other
provision of the PN Option Plans or the MC Option Plan, all PN Options held by
any PN director whose status as a director ends upon the Effective Time, by
employees whose employment is involuntarily terminated without cause within six
months after the Closing Date, or by other employees as agreed by MC, will be
exercisable until the earlier of (i) the fourth anniversary of the Closing Date
and (ii) the date on which such PN Options would otherwise have expired if such
person had remained a director or employee of PN.
 
                                        4
<PAGE>   104
 
          (c) Notwithstanding the foregoing provisions, in the case of any
option to which Code Section 421 applies, the option price, the number of shares
subject to such option, and the terms and conditions of exercise of such option
shall be determined in order to comply with Code Section 424(a). As soon as
practicable after the Effective Time, the Surviving Corporation shall deliver to
the holders of MC Replacement Options appropriate notices setting forth such
holders' rights pursuant to MC Replacement Options.
 
     Section 2.5  PN Subordinated Notes.  After the Effective Time, MC will
comply with applicable terms of the Indenture (the "Indenture") dated as of June
15, 1995 between PN and First Interstate Bank of Texas, N.A. for PN's 11 7/8%
Senior Subordinated Notes due 2005 (the "Notes"), including causing the
obligations under the Notes and the Indenture to be assumed by the Surviving
Corporation in accordance with the Indenture.
 
     Section 2.6  Termination of Rights Plan.  The Board of Directors of PN has
adopted a resolution approving an amendment to the Rights Plan to provide that
the Rights Plan shall terminate and the Rights shall be canceled upon the
consummation of the Merger. PN shall not redeem the Rights prior to the
Effective Time unless required to do so by a court of competent jurisdiction;
provided that nothing herein shall prohibit PN from taking any action with
respect to the Rights Plan after the Board of Directors of PN has made a
determination in accordance with Section 5.9(f).
 
                                  ARTICLE III
 
                      REPRESENTATIONS AND WARRANTIES OF PN
 
     PN represents and warrants to MC as follows (in each case as qualified by
matters reflected on the disclosure letter dated as of the date of this
Agreement and delivered by PN to MC on or prior to the date of this Agreement
(the "PN Disclosure Letter") which is made a part hereof by reference, each such
matter qualifying each representation and warranty, as applicable,
notwithstanding any specific Section or Schedule reference or lack thereof).
 
     Section 3.1  Organization.  (a) Except as set forth on Schedule 3.1 to the
PN Disclosure Letter, each of PN and its Subsidiaries is a corporation duly
organized, validly existing and in good standing under the laws of the
jurisdiction of its incorporation and has all requisite corporate power and
authority and all necessary governmental approvals to own, lease and operate its
properties and to carry on its business as now being conducted, except where the
failure to be so organized, existing and in good standing or to have such power,
authority, and governmental approvals would not have a Material Adverse Effect
on PN and its Subsidiaries taken as a whole. As used in this Agreement, the word
"Subsidiary" means, with respect to any party, any corporation or other
organization, whether incorporated or unincorporated, of which at least a
majority of the securities or other interests having by their terms ordinary
voting power to elect a majority of the Board of Directors or others performing
similar functions with respect to such corporation or other organization, is
directly or indirectly owned or controlled by such party or by any one or more
of its Subsidiaries, or by such party and one or more of its Subsidiaries. As
used in this Agreement, any reference to "Material Adverse Effect" on or with
respect to any entity (or group of entities taken as a whole) means any event,
change or effect that is or would likely be materially adverse to the
consolidated financial condition, businesses, results of operations or cash
flows of such entity (or, if used with respect thereto, of such group of
entities taken as a whole). Each of PN and its Subsidiaries is duly qualified or
licensed to do business and in good standing in each jurisdiction in which the
property owned, leased or operated by it or the nature of the business conducted
by it makes such qualification or licensing necessary, except where the failure
to be so duly qualified or licensed and in good standing would not, individually
or in the aggregate, have a Material Adverse Effect on PN and its Subsidiaries,
taken as a whole, or prevent PN from consummating any of the transactions
contemplated hereby.
 
          (b) PN has heretofore made available to MC a complete and correct copy
of the Certificate of Incorporation and By-Laws or other organizational
documents of PN and the organizational documents of each of its Subsidiaries, as
currently in effect. Each such document is in full force and effect and no other
organizational documents are applicable to or binding upon PN or any Subsidiary.
 
                                        5
<PAGE>   105
 
          (c) Schedule 3.1 to the PN Disclosure Letter identifies all the
Subsidiaries of PN.
 
     Section 3.2  Capitalization.  (a) The authorized capital stock of PN
consists of 20,000,000 shares of common stock, par value $.01 per share, and
5,000,000 shares of preferred stock, par value $1.00 per share. Schedule 3.2 to
the PN Disclosure Letter sets forth as of the date hereof (i) the number of
issued and outstanding PN Shares; (ii) the number of PN Shares that would be
issuable by PN upon the exercise of all unexpired PN Options granted pursuant to
PN Option Plans, including the name of each holder of PN Options, the number of
PN Options held by such holder, and the date of grant, date of vesting, and
exercise price for all such PN Options; and (iii) all other PN Shares issuable
to any person pursuant to any existing options, warrants, calls, preemptive (or
similar) rights, subscriptions or other rights, agreements, arrangements or
commitments of any character, except pursuant to the Rights (collectively, the
"Scheduled Shares"). As of the date hereof, no shares of preferred stock are
issued and outstanding or held in the treasury of PN, and 406,450 PN Shares are
held in the treasury of PN. PN has taken all necessary corporate and other
action to authorize and reserve and to permit it to issue PN Shares which may be
issued pursuant to PN Options or the transactions contemplated hereby. All the
outstanding shares of PN's capital stock are, and all shares which may be issued
pursuant to the exercise of PN Options, when issued in accordance with the
respective terms thereof will be, duly authorized, validly issued, fully paid
and non-assessable and free of any preemptive (or similar) rights. Schedule
3.2(a) describes all agreements currently in effect pursuant to which any person
or entity has the right to cause PN to register any PN Shares under the
Securities Act of 1933, as amended (the "Securities Act"). There are no bonds,
debentures, notes or other indebtedness having general voting rights (or
convertible into securities having such rights) ("Voting Debt") of PN or any of
its Subsidiaries issued and outstanding. Except as set forth in Schedule 3.2(a)
to the PN Disclosure Letter and for the Rights, as of the date hereof, (i) there
are no shares of capital stock of PN authorized, issued or outstanding, (ii)
there are no existing options, warrants, calls, preemptive (or similar) rights,
subscriptions or other rights, agreements, arrangements or commitments of any
character, relating to the issued or unissued capital stock of PN or any of its
Subsidiaries, obligating PN or any of its Subsidiaries to issue, transfer or
sell or cause to be issued, transferred or sold any shares of capital stock or
Voting Debt of, or other equity interest in, PN or any of its Subsidiaries or
securities convertible into or exchangeable for such shares or equity interest
or obligations of PN or any of its Subsidiaries, and (iii) there are no
outstanding contractual obligations of PN or any of its Subsidiaries to
repurchase, redeem or otherwise acquire any PN Shares, or capital stock of PN or
any Subsidiary or affiliate of PN.
 
          (b) Except as set forth on Schedule 3.2(b) to the PN Disclosure
Letter, all of the outstanding shares of capital stock of each of PN's
Subsidiaries are beneficially owned by PN, directly or indirectly, free and
clear of all security interests, liens, claims, pledges, agreements, limitations
on voting rights, charges or other encumbrances of any nature whatsoever.
 
          (c) There are no voting trusts or other agreements or understandings
to which PN or any of its Subsidiaries is a party with respect to the voting of
the capital stock of PN or any of its Subsidiaries. Other than as contemplated
herein, none of PN or its Subsidiaries is required to redeem, repurchase or
otherwise acquire shares of capital stock of PN, or any of its Subsidiaries,
respectively, as a result of the transactions contemplated by this Agreement.
 
          (d) At the time of issuance, the PN Shares issued pursuant to the PN
Option Agreement will be duly authorized and validly issued, and, upon payment
of the exercise price as set forth in the PN Option Agreement, such PN Shares
will be fully paid and nonassessable and not subject to preemptive (or similar)
rights.
 
     Section 3.3  Authorization; Validity of Agreement; PN Action.  (a) PN has
full corporate power and authority to execute and deliver this Agreement and the
PN Option Agreement and to consummate the transactions contemplated hereby and
thereby. The execution, delivery and performance by PN of this Agreement and the
PN Option Agreement, and the consummation by it of the transactions contemplated
hereby and thereby, have been duly authorized by the Board of Directors of PN,
and no other corporate action on the part of PN is necessary to authorize the
execution and delivery by PN of this Agreement and the PN Option Agreement and
the consummation by it of the transactions contemplated hereby and thereby
(other
 
                                        6
<PAGE>   106
 
than the approval of this Agreement by the affirmative vote of the holders of a
majority of the outstanding PN Shares). This Agreement and the PN Option
Agreement have been duly executed and delivered by PN and (assuming due and
valid authorization, execution and delivery hereof and thereof by the other
parties hereto and thereto) are valid and binding obligations of PN enforceable
against PN in accordance with their terms, except that (i) such enforcement may
be subject to applicable bankruptcy, insolvency, reorganization, moratorium or
other similar laws, now or hereafter in effect, affecting creditors' rights
generally, and (ii) the remedy of specific performance and injunctive and other
forms of equitable relief may be subject to equitable defenses and to the
discretion of the court before which any proceeding therefor may be brought.
 
     (b) The Board of Directors of PN has approved the transactions contemplated
by this Agreement, the MC Voting Agreement and the PN Option Agreement so as to
render inapplicable thereto the provisions of Section 203 of the DGCL.
 
     (c) PN has received the written opinion of Salomon Brothers Inc (the "PN
Financial Advisor"), dated on or before the date of this Agreement, to the
effect that, as of such date, the consideration to be received by holders of PN
Shares pursuant to the Merger is fair to such holders from a financial point of
view (the "PN Fairness Opinion"). PN has delivered to MC a copy of the PN
Fairness Opinion for informational purposes only.
 
     Section 3.4  Consents and Approvals; No Violations; Licenses.  (a) Neither
the execution, delivery or performance of this Agreement, the MC Voting
Agreement or the PN Option Agreement by PN, nor the consummation by PN of the
transactions contemplated hereby or thereby, nor compliance by PN with any of
the provisions hereof or thereof will (i) conflict with or result in any breach
of any provision of the Certificate of Incorporation or By-Laws or other
organizational documents of PN or of any of its Subsidiaries, (ii) require on
the part of PN any filing with, or permit, authorization, consent or approval
of, any court, arbitral tribunal, administrative agency or commission or other
governmental or other regulatory authority or agency (a "Governmental Entity")
except for (A) filings, permits, authorizations, consents and approvals as may
be required under, and other applicable requirements of, the Securities Exchange
Act of 1934, as amended (the "Exchange Act"), the Hart-Scott-Rodino Antitrust
Improvements Act of 1976, as amended (the "HSR Act"), the Federal Communication
Commission (the "FCC"), the Communications Act of 1934, as amended (the
"Communications Act"), state public utility or public service laws, the
Securities Act, the DGCL, state or foreign laws relating to takeovers, state
securities or blue sky laws, and the laws of other states in which PN is
qualified to do or is doing business, or (B) where the failure to obtain such
permits, authorizations, consents or approvals or to make such filings,
individually or in the aggregate, would not have a Material Adverse Effect on PN
and its Subsidiaries, taken as a whole, or prevent PN from consummating the
transactions contemplated hereby or thereby, (iii) except as disclosed on
Schedule 3.4(a) to the PN Disclosure Letter, result in a violation or breach of,
or constitute (with or without due notice or lapse of time or both) a default
(or give rise to any right of termination, cancellation or acceleration) under,
any of the terms, conditions or provisions of any note, bond, mortgage,
indenture, lease, license, contract, agreement or other instrument or obligation
to which PN or any of its Subsidiaries is a party or by which any of them or any
of their properties or assets may be bound and which has been included or is
required to be included as an exhibit to PN's Annual Report on Form 10-K for the
fiscal year ended December 31, 1996 (the "PN Material Agreements") or (iv)
violate any order, writ, injunction, decree, statute, rule or regulation
applicable to PN, any of its Subsidiaries or any of their properties or assets,
excluding from the foregoing clauses (iii) and (iv) such violations, breaches or
defaults which would not, individually or in the aggregate, have a Material
Adverse Effect on PN and its Subsidiaries, taken as a whole, or prevent PN from
consummating the transactions contemplated hereby.
 
     (b) PN or one of its Subsidiaries holds all licenses, permits,
certificates, franchises, ordinances, registrations, or other rights,
applications and authorizations filed with, granted or issued by, or entered by
any Governmental Entity, including without limitation, the FCC, or any state or
local regulatory authorities or any state or local public service commission or
public utility commission asserting jurisdiction over the radio facilities used
in PN's business (each, a "State Authority"), that are required for the conduct
of its businesses as now being conducted, except for those the absence of which
would not, individually or in the aggregate, have a Material Adverse Effect on
PN and its Subsidiaries taken as a whole (collectively, "PN Licenses").
 
                                        7
<PAGE>   107
 
The PN Licenses are valid and in full force and effect, and the terms of said PN
Licenses are not subject to any restrictions or conditions that materially limit
or would materially limit the operations of the business of PN or any of its
Subsidiaries as presently conducted, other than restrictions or conditions
generally applicable to licenses of that type. The PN Licenses granted, issued
or entered by the FCC are subject to the Communications Act. There are no
proceedings pending or, to the best knowledge of PN, complaints or petitions by
others, or threatened proceedings, before the FCC or any other Governmental
Entity relating to the business or operations of PN or any of its Subsidiaries
or the PN Licenses, and there are no facts or conditions that reasonably could
be expected to constitute grounds for the FCC to revoke, terminate, suspend,
deny, annul, or impose conditions on any renewal of any PN Licenses, in either
case that would, individually or in the aggregate, have a Material Adverse
Effect on PN and its Subsidiaries, taken as a whole, or prevent PN from
consummating the transactions contemplated hereby or to impose any fines,
forfeitures or other penalties on PN or its Subsidiaries that would,
individually or in the aggregate, have a Material Adverse Effect on PN and its
Subsidiaries, taken as a whole.
 
     (c) Schedule 3.4(c) to the PN Disclosure Letter contains a true and
complete list of each FCC permit and FCC license issued in the name of PN, or
any of its Subsidiaries, as of August 1, 1997. Schedule 3.4(c) also contains a
true and complete list of all licenses, certificates, consents, permits,
approvals and authorizations pending before or issued by any State Authority.
 
     Section 3.5  SEC Reports and Financial Statements.  Except as disclosed in
Schedule 3.5(a) of the PN Disclosure Letter, since July 1, 1995, PN and its
Subsidiaries have filed with the Securities and Exchange Commission ("SEC") all
forms, reports, schedules, statements, and other documents required to be filed
by them with the SEC (as such documents have been amended since the time of
their filing, collectively, the "PN SEC Documents"), have included as exhibits
all material contracts, and have filed all other exhibits required to be filed
with the PN SEC Documents other than any exhibits (excluding material contracts)
that the failure to file would not, individually or in the aggregate, have a
Material Adverse Effect on PN and its Subsidiaries, taken as a whole. As of
their respective dates or, if amended, as of the date of the last such
amendment, the PN SEC Documents, including, without limitation, any financial
statements or schedules included therein, complied in all material respects with
the applicable requirements of the Securities Act and the Exchange Act, and did
not 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 light of the circumstances under which they were made, not
misleading. None of PN's Subsidiaries is required to file any forms, reports or
other documents with the SEC pursuant to Section 12 or 15 of the Exchange Act.
The consolidated financial statements of PN for the fiscal year ended December
31, 1996 (including the related notes thereto) included in PN's Annual Report on
Form 10-K and the consolidated financial statements of PN for the six months
ended June 30, 1997, copies of which have been provided to MC (together, the "PN
Financial Statements"), have been prepared from, and are in accordance with, the
books and records of PN and its consolidated Subsidiaries, comply in all
material respects with applicable accounting requirements and comply (or as to
the PN Financial Statements for the six months ended June 30, 1997, will comply)
with the published rules and regulations of the SEC with respect thereto, have
been prepared in accordance with United States generally accepted accounting
principles ("GAAP") applied on a consistent basis throughout the periods
involved (except as may be indicated in the notes thereto), and present fairly
the consolidated financial position and the consolidated results of operations
and cash flows of PN and its consolidated Subsidiaries as at the dates thereof
or for the periods presented therein. The financial statements that will be
reported in PN's Quarterly Report on Form 10-Q for the quarter ended June 30,
1997 will include the financial statements for the six months ended June 30,
1997 included as Schedule 3.5(b) to the PN Disclosure Letter.
 
     Section 3.6  No Undisclosed Liabilities.  Except (i) as disclosed in the PN
SEC Documents, (ii) as set forth in Schedule 3.6 to the PN Disclosure Letter,
and (iii) for liabilities incurred in the ordinary course of business and
consistent with past practice, and liabilities incurred in connection with the
consummation of the transactions contemplated hereby (none of which,
individually or in the aggregate, is reasonably likely to have a Material
Adverse Effect on PN and its Subsidiaries, taken as a whole), since December 31,
1996, neither PN nor any of its Subsidiaries has incurred any liabilities or
obligations of any nature (whether accrued,
 
                                        8
<PAGE>   108
 
absolute, contingent or otherwise) which would be required by GAAP to be
reflected on a consolidated balance sheet of PN and its Subsidiaries (including
the notes thereto), and, which individually or in the aggregate, is reasonably
likely to have a Material Adverse Effect on PN and its Subsidiaries, taken as a
whole.
 
     Section 3.7  Absence of Certain Changes.  Except as contemplated by this
Agreement or as disclosed in the PN SEC Documents or in Schedule 3.7 hereto,
since December 31, 1996, (i) PN and its Subsidiaries have conducted their
respective businesses only in the ordinary course of business and consistent
with past practice, (ii) there has not been any change in the business,
properties, assets, liabilities, financial condition, cash flows, operations,
licenses, franchises or results of operations of PN or its Subsidiaries which
has had a Material Adverse Effect on PN and its Subsidiaries, taken as a whole,
and (iii) there has not been any action taken by PN or its Subsidiaries of a
type described in clauses (ii) through (xvi) of Section 5.1(a).
 
     Section 3.8  Employee Benefit Plans; ERISA; Labor.  (a) Schedule 3.8 to the
PN Disclosure Letter sets forth (i) a list of all employee benefit plans
(including but not limited to plans described in section 3(3) of the Employee
Retirement Income Security Act of 1974, as amended ("ERISA")), maintained by PN,
any of its Subsidiaries or any trade or business, whether or not incorporated (a
"PN ERISA Affiliate"), which together with PN would be deemed a "single
employer" within the meaning of section 4001(b)(1) of ERISA ("PN Benefit Plans")
and (ii) all employment, retention, and severance agreements with employees of
PN and its Subsidiaries ("PN Employee Agreements"). True and complete copies of
all current PN Benefit Plans and PN Employee Agreements have been provided to MC
by PN.
 
     (b) With respect to each PN Benefit Plan, (i) if intended to qualify under
section 401(a) or 401(k) of the Code, such plan has received a determination
letter from the Internal Revenue Service ("IRS") stating that it so qualifies
and that its trust is exempt from taxation under section 501(a) of the Code, no
such determination letter has been revoked and no such revocation has been
threatened, nothing has occurred that could reasonably be expected to cause the
relevant PN Benefit Plan to lose such qualification or exemption, and no such
plan holds "employer securities" as defined in Section 407(d)(1) of ERISA; (ii)
such plan has been administered in all material respects in accordance with its
terms and applicable law, including state and federal securities laws; (iii) no
breaches of fiduciary duty by PN, or, to PN's knowledge, by any other person,
have occurred that might reasonably be expected to give rise to material
liability on the part of PN or any PN ERISA Affiliate; (iv) no disputes are
pending, or, to the knowledge of PN, threatened that might reasonably be
expected to give rise to material liability on the part of PN or any PN ERISA
Affiliate; (v) no prohibited transaction (within the meaning of Section 406 of
ERISA) has occurred that might reasonably be expected to give rise to material
liability on the part of PN or any PN ERISA Affiliate; (vi) all contributions
required to be made to such plan as of the date hereof (taking into account any
extensions for the making of such contributions) have been made in full; (vii)
to PN's knowledge, no PN Benefit Plans are presently under audit or examination
(nor has notice been received of a potential audit or examination) by the IRS,
Department of Labor, or any other governmental agency or entity, and no matters
are pending with respect to any PN Benefit Plan under the IRS's Voluntary
Compliance Resolution program, its Closing Agreement Program, or other similar
programs; and (viii) all monies withheld from employees with respect to PN
Benefit Plans have been transferred to the appropriate plan in accordance with
the terms of such plan and applicable law.
 
     (c) No PN Benefit Plan is a "multiemployer plan," as defined in section
3(37) of ERISA and no PN Benefit Plan is or has been subject to Title IV of
ERISA.
 
     (d) No liability under Title IV of ERISA has been incurred by PN or any PN
ERISA Affiliate (whether direct, indirect, actual, or contingent, and including,
without limitation, withdrawal liability to a multiemployer plan), and no
condition exists that presents a material risk to PN or any PN ERISA Affiliate
of incurring a material liability under such Title. No PN Benefit Plan has
incurred an accumulated funding deficiency, as defined in section 302 of ERISA
or section 312 of the Code, whether or not waived.
 
     (e) With respect to each PN Benefit Plan that is a "welfare plan" (as
defined in section 3(1) of ERISA), no such plan provides material medical or
death benefits with respect to current or former employees of PN or any of its
Subsidiaries beyond their termination of employment (other than to the extent
required by applicable law). All group health plans of PN and any PN ERISA
Affiliates have been operated in material compliance with the requirements of
Section 4980B (and its predecessor) and 5000 of the Code,
 
                                        9
<PAGE>   109
 
and PN and the PN ERISA Affiliates have provided, or will have provided prior to
the Effective Date, to individuals entitled thereto all notices and coverage
pursuant to Section 4980B required before such date, except to the extent that
failure to provide such notice or coverage is not reasonably likely to result,
individually or in the aggregate, in a Material Adverse Effect on PN and its
Subsidiaries, taken as a whole.
 
     (f) Except as required by applicable law, no PN Benefit Plan, plan
documentation or agreement, summary plan description or other written
communication distributed generally to employees of PN or its Subsidiaries by
its terms prohibits the amendment or termination of any such PN Benefit Plan.
 
     (g) As of the date hereof, except for PN Employee Agreements and PN Option
Plans or as described in Schedule 3.8 to the PN Disclosure Letter, PN and its
Subsidiaries are not parties to any (i) agreement with any director, executive
officer or other key employee of PN or its Subsidiaries (A) the benefits of
which are contingent, or the terms of which are materially altered, upon the
occurrence of a transaction involving PN or its Subsidiaries of the nature of
any of the transactions contemplated by this Agreement, (B) providing any term
of employment or compensation guarantee, or (C) providing severance benefits or
other benefits after the termination of employment of such director, executive
officer or key employee; (ii) agreement, plan or arrangement under which any
person may receive payments from PN or its Subsidiaries that would be subject to
the tax imposed by Section 4999 of the Code or included in the determination of
such person's "parachute payment" under Section 280G of the Code; and (iii)
agreement or plan binding PN or its Subsidiaries, including without limitation
any stock option plan, stock appreciation right plan, restricted stock plan,
stock purchase plan, severance benefit plan or employee benefit plan, any of the
benefits of which will be increased, or the vesting of the benefits of which
will be accelerated, by the occurrence of any of the transactions contemplated
by this Agreement or the value of any of the benefits of which will be
calculated on the basis of any of the transactions contemplated by this
Agreement.
 
     (h) As of the date hereof, no collective bargaining agreement is binding
and in force against PN or its Subsidiaries or is currently under negotiation,
and no current employees of PN or its Subsidiaries are represented by any labor
union. As of the date hereof, to PN's knowledge, no labor representation effort
exists with respect to PN or its Subsidiaries.
 
     (i) Since December 31, 1996, PN has not paid any bonuses or agreed to pay
any bonuses to any employee except as disclosed on Schedule 3.8 to the PN
Disclosure Letter.
 
     Section 3.9  Litigation.  Schedule 3.9 to the PN Disclosure Letter sets
forth each suit, action or proceeding pending (as to which PN has received
notice), or, to the knowledge of PN, threatened against PN, any of its
Subsidiaries, or any of their properties or assets on the date hereof. Except as
set forth on Schedule 3.9 to the PN Disclosure Letter, there is no suit, action
or proceeding pending (as to which PN has received notice), or, to the knowledge
of PN, threatened against PN, any of its Subsidiaries or any of their properties
or assets that individually or in the aggregate, is reasonably likely to have a
Material Adverse Effect on PN and its Subsidiaries, taken as a whole, if
resolved adversely to PN or its Subsidiaries. Neither PN nor any of its
Subsidiaries, nor any of their respective properties, is subject to any order,
writ, judgment, injunction, decree, determination or award having, or which
would have, a Material Adverse Effect on PN and its Subsidiaries, taken as a
whole, or which would prevent PN from consummating the transactions contemplated
hereby.
 
     Section 3.10  No Default; Compliance with Applicable Laws.  Neither PN nor
any of its Subsidiaries is in default (or would be in default after passage of
time or giving of notice) or violation in any material respect of any term,
condition or provision of (i) its respective Certificate of Incorporation or
By-laws or other organizational documents, (ii) any PN Material Agreement or
(iii) any federal, state, local or foreign statute, law, ordinance, rule,
regulation, judgment, decree, order, concession, grant, franchise, permit or
license or other governmental authorization or approval applicable to PN or any
of its Subsidiaries or by which they or their respective assets may be bound
(other than matters addressed in Sections 3.4, 3.8, 3.9, 3.11, and 3.12),
excluding from the foregoing clauses (ii) and (iii), defaults or violations
which are not reasonably likely to have, individually or in the aggregate, a
Material Adverse Effect on PN and its Subsidiaries, taken as a whole, or prevent
PN from consummating the transactions contemplated hereby.
 
                                       10
<PAGE>   110
 
     Section 3.11  Taxes.  Except as set forth on Schedule 3.11 to the PN
Disclosure Letter:
 
     (a) PN and its Subsidiaries have (i) duly and timely filed (or there has
been filed on their behalf) with the appropriate governmental authorities all
Tax Returns (as hereinafter defined) required to be filed by them on or prior to
the date hereof, other than those Tax Returns for which extensions for filing
have been obtained in a timely manner, and such Tax Returns are true, correct
and complete in all material respects, and (ii) duly paid in full all Taxes (as
hereinafter defined) shown to be due on such Tax Returns or have provided
adequate reserves in their financial statements for any Taxes that have not been
paid. There are no liens on any of the assets of PN or any of its Subsidiaries
that arose in connection with any delinquency in paying any Tax.
 
     (b) As of the date hereof, there are no ongoing federal, state, local or
foreign audits or examinations of any Tax Return of PN or its Subsidiaries.
 
     (c) As of the date hereof, there are no outstanding requests, agreements,
consents or waivers to extend the statutory period of limitations applicable to
the assessment of any Taxes or deficiencies against PN or any of its
Subsidiaries (excluding extensions for filings that have been timely obtained),
and no power of attorney granted by either PN or any of its Subsidiaries with
respect to any Taxes is currently in force.
 
     (d) Neither PN nor any of its Subsidiaries is a party to any agreement
providing for the allocation or sharing of Taxes.
 
     (e) "Taxes" shall mean any and all taxes, charges, fees, levies or other
assessments, including, without limitation, income, gross receipts, excise, real
or personal property, sales, withholding, social security, occupation, use,
service, service use, license, net worth, payroll, franchise, transfer and
recording taxes, fees and charges, imposed by the IRS or any taxing authority
(whether domestic or foreign including, without limitation, any state, county,
local or foreign government or any subdivision or taxing agency thereof
(including a United States possession)), whether computed on a separate,
consolidated, unitary, combined or any other basis; and such term shall include
any interest whether paid or received, fines, penalties or additional amounts
attributable to, or imposed upon, or with respect to, any such taxes, charges,
fees, levies or other assessments. "Tax Return" shall mean any report, return,
document, declaration or other information or filing required to be supplied to
any taxing authority or jurisdiction (foreign or domestic) with respect to
Taxes.
 
     Section 3.12  Environmental Matters.  (a) PN and its Subsidiaries have
complied in all respects with all applicable Environmental Laws (as defined
below), except to the extent that any failure to comply is not reasonably likely
to have, individually or in the aggregate, a Material Adverse Effect on PN and
its Subsidiaries, taken as a whole. There is no pending or, to the knowledge of
PN, threatened, civil or criminal litigation, written notice or violation,
formal administrative proceeding or investigation, inquiry or information
request by any Governmental Entity relating to any Environmental Law involving
PN or any of its Subsidiaries or any of their properties. For purposes of this
Agreement, "Environmental Law" means any foreign, federal, state or local law,
statute, rule or regulation or the common law relating to the environment or
occupational health and safety, including without limitation any statute,
regulation or order pertaining to (i) treatment, storage, disposal, generation
or transportation of industrial, toxic or hazardous substances or solid or
hazardous waste; (ii) air, water and noise pollution; (iii) groundwater and soil
contamination; (iv) the release or threatened release into the environment of
industrial, toxic or hazardous substances, or solid or hazardous waste,
including without limitation emissions, discharges, injections, spills, escapes
or dumping of pollutants, contaminants or chemicals; (v) the protection of
wildlife, marine sanctuaries and wetlands, including without limitation all
endangered and threatened species; (vi) storage tanks, vessels and containers;
(vii) underground and other storage tanks or vessels, abandoned, disposed or
discarded barrels, containers and other closed receptacles; (viii) health and
safety of employees and other persons; and (ix) manufacture, processing, use,
distribution, treatment, storage, disposal, transportation or handling of
pollutants, contaminants, chemicals or industrial, toxic or hazardous substances
or oil or petroleum products or solid or hazardous waste. As used above, the
terms "release" and "environment" shall have the meaning set forth in the
federal Comprehensive Environmental Response, Compensation and Liability Act of
1980 ("CERCLA").
 
     (b) With the exception of releases that are not reasonably likely to have,
individually or in the aggregate, a Material Adverse Effect on PN and its
Subsidiaries, taken as a whole, there have been no releases of any
 
                                       11
<PAGE>   111
 
Materials of Environmental Concern (as defined below) into the environment by PN
or any of its Subsidiaries, or, to the knowledge of PN, by any other party at
any parcel of real property or any facility formerly or currently owned,
operated or controlled by PN or any of its Subsidiaries. For purposes of this
Agreement, "Materials of Environmental Concern" means any chemicals, pollutants
or contaminants, hazardous substances (as such term is defined under CERCLA),
solid wastes and hazardous wastes (as such terms are defined under the federal
Resource Conservation and Recovery Act), toxic materials, oil or petroleum and
petroleum products, or any other material subject to regulation under any
Environmental Law.
 
     Section 3.13  Insurance.  PN and its Subsidiaries maintain adequate
insurance with respect to their respective businesses and are in compliance with
all material requirements and provisions thereof.
 
     Section 3.14  Proxy Statement; Registration Statement; Other
Information.  The information supplied or to be supplied by PN with respect to
PN, its officers and directors and its Subsidiaries (i) to be contained in the
definitive joint Proxy Statement (the "Proxy Statement") to be furnished to the
respective stockholders of PN and MC pursuant to Section 5.2 and which will form
a part of MC's Registration Statement on Form S-4 (the "Registration Statement")
to be filed with the SEC and which will constitute a prospectus of MC with
respect to the MC Shares to be issued in the Merger, and (ii) to be contained in
the Registration Statement will not, on the respective dates on which (A) the
Proxy Statement is first mailed to stockholders of PN and MC, (B) the Meetings
(as defined in Section 5.2) are held (in the case of the Proxy Statement), (C)
the Registration Statement becomes effective (in the case of the Registration
Statement), and (D) in the case of the Proxy Statement and the Registration
Statement, as such Proxy Statement or Registration Statement is then amended or
supplemented, at the Effective Time, contain any untrue statement of a material
fact or omit to state any material fact required to be stated therein or
necessary in order to make the statements therein, in light of the circumstances
under which they were made, not misleading. When the Proxy Statement or any
amendment or supplement thereto shall be mailed, and at the time of each Meeting
and at the Effective Time, the Proxy Statement will comply as to form with all
applicable laws including the provisions of the Securities Act and the Exchange
Act and the rules and regulations promulgated thereunder. If at any time prior
to the Effective Time any event with respect to PN, its officers and directors
and its Subsidiaries should occur which is or should be described in an
amendment of, or a supplement to, the Proxy Statement or the Registration
Statement, PN shall promptly so inform MC and such event shall be so described
in an amendment or supplement to the Proxy Statement and such information in
such amendment or supplement will not 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, in light of the circumstances under
which they were made, not misleading.
 
     Section 3.15  Transactions with Affiliates.  Except as set forth in the PN
SEC Documents or on Schedule 3.15 to the PN Disclosure Letter, since December
31, 1996, neither PN nor any of its Subsidiaries has entered into any
transaction with any current director or officer of PN or any Subsidiary or any
transaction which would be subject to proxy statement disclosure under the
Exchange Act pursuant to the requirements of Item 404 of Regulation S-K.
 
     Section 3.16  Share Ownership.  As of the date hereof, neither PN nor any
of its Subsidiaries or affiliates beneficially owns any MC Shares.
 
     Section 3.17  Brokers.  Other than the PN Financial Advisor, no broker,
finder or investment banker is entitled to any brokerage, finder's or other fee
or commission from PN in connection with the transactions contemplated by this
Agreement.
 
                                   ARTICLE IV
 
                      REPRESENTATIONS AND WARRANTIES OF MC
 
     MC represents and warrants to PN as follows (in each case as qualified by
matters reflected on the disclosure letter dated as of the date of this
Agreement and delivered by MC to PN on or prior to the date of this Agreement
(the "MC Disclosure Letter") and made a part hereof by reference, each such
matter
 
                                       12
<PAGE>   112
 
qualifying each representation and warranty, as applicable, notwithstanding any
specific Section or Schedule reference or lack thereof).
 
     Section 4.1  Organization.  (a) Each of MC and its Subsidiaries is a
corporation duly organized, validly existing and in good standing under the laws
of the jurisdiction of its incorporation and has all requisite corporate power
and authority and all necessary governmental approvals to own, lease and operate
its properties and to carry on its business as now being conducted, except where
the failure to be so organized, existing and in good standing or to have such
power, authority, and governmental approvals would not have a Material Adverse
Effect on MC and its Subsidiaries taken as a whole. Each of MC and its
Subsidiaries is duly qualified or licensed to do business and in good standing
in each jurisdiction in which the property owned, leased or operated by it or
the nature of the business conducted by it makes such qualification or licensing
necessary, except where the failure to be so duly qualified or licensed and in
good standing would not, individually or in the aggregate, have a Material
Adverse Effect on MC and its Subsidiaries, taken as a whole, or prevent MC from
consummating any of the transactions contemplated hereby.
 
     (b) MC has heretofore made available to PN a complete and correct copy of
the Certificate of Incorporation and By-Laws or other organizational documents
of MC and the organizational documents of each of its Subsidiaries, as currently
in effect. Each such document is in full force and effect and no other
organizational documents are applicable to or binding upon MC or any Subsidiary.
 
     (c) Schedule 4.1 to the MC Disclosure Letter identifies all the
Subsidiaries of MC.
 
     Section 4.2  Capitalization.  (a) The authorized capital stock of MC
consists of 60,000,000 shares of common stock, par value $.01 per share, and
1,000,000 shares of preferred stock, par value $.01 per share, of which 810,000
shares have been designated as Series A Convertible Preferred Stock ("Series A
Preferred") and 9,000 shares have been designated as Series B Junior Convertible
Preferred Stock ("Series B Preferred"). Schedule 4.2(a) to the MC Disclosure
Letter sets forth as of the date hereof (i) the number of issued and outstanding
MC Shares; (ii) the number of issued and outstanding shares of Series A
Preferred; (iii) the number of issued and outstanding shares of Series B
Preferred; (iv) the number of MC Shares that would be issuable by MC upon the
exercise of all unexpired options to purchase MC Shares ("MC Options"), and date
of vesting thereof; and (v) all other MC Shares issuable to any person pursuant
to any existing options, warrants, calls, preemptive (or similar) rights,
subscriptions or other rights, agreements, arrangements or commitments of any
character. As of the date hereof, no MC Shares, shares of Series A Preferred or
shares of Series B Preferred are held in the treasury of MC. Subject to
stockholder approval of an amendment to MC's Certificate of Incorporation to
increase the number of authorized MC Shares to 80,000,000, MC has taken all
necessary corporate and other action to authorize and reserve and to permit it
to issue MC Shares which may be issued pursuant to MC Options or the
transactions contemplated hereby. All the outstanding shares of MC's capital
stock are, and all shares which may be issued pursuant to the exercise of MC
Options, when issued in accordance with the respective terms thereof will be,
duly authorized, validly issued, fully paid and non-assessable and free of any
preemptive (or similar) rights. There is no Voting Debt of MC or any of its
Subsidiaries issued and outstanding. Except as set forth in Schedule 4.2(a) to
the MC Disclosure Letter, as of the date hereof, (i) there are no shares of
capital stock of MC authorized, issued or outstanding, (ii) there are no
existing options, warrants, calls, preemptive (or similar) rights, subscriptions
or other rights, agreements, arrangements or commitments of any character,
relating to the issued or unissued capital stock of MC or any of its
Subsidiaries, obligating MC or any of its Subsidiaries to issue, transfer or
sell or cause to be issued, transferred or sold any shares of capital stock or
Voting Debt of, or other equity interest in, MC or any of its Subsidiaries or
securities convertible into or exchangeable for such shares or equity interest
or obligations of MC or any of its Subsidiaries, and (iii) there are no
outstanding contractual obligations of MC or any of its Subsidiaries to
repurchase, redeem or otherwise acquire any MC Shares, or capital stock of MC or
any Subsidiary or affiliate of MC.
 
     (b) Except as set forth on Schedule 4.2(b) to the MC Disclosure Letter, all
of the outstanding shares of capital stock of each of MC's Subsidiaries are
beneficially owned by MC, directly or indirectly, free and clear of all security
interests, liens, claims, pledges, agreements, limitations on voting rights,
charges or other encumbrances of any nature whatsoever.
 
                                       13
<PAGE>   113
 
     (c) There are no voting trusts or other agreements or understandings to
which MC or any of its Subsidiaries is a party with respect to the voting of the
capital stock of MC or any of its Subsidiaries. Other than as contemplated
herein, none of MC or its Subsidiaries is required to redeem, repurchase or
otherwise acquire shares of capital stock of MC, or any of its Subsidiaries,
respectively, as a result of the transactions contemplated by this Agreement.
 
     (d) At the time of issuance, the MC Shares issued pursuant to the Merger
will be duly authorized and validly issued, and such MC Shares will be fully
paid and nonassessable and not subject to preemptive (or similar) rights.
 
     Section 4.3  Authorization; Validity of Agreement; MC Action.  (a) MC has
full corporate power and authority to execute and deliver this Agreement and the
PN Option Agreement and to consummate the transactions contemplated hereby and
thereby. The execution, delivery and performance by MC of this Agreement and the
PN Option Agreement, and the consummation by it of the transactions contemplated
hereby and thereby, have been duly authorized by the Board of Directors of MC,
and no other corporate action on the part of MC is necessary to authorize the
execution and delivery by MC of this Agreement and the PN Option Agreement and
the consummation by it of the transactions contemplated hereby and thereby
(other than approval of this Agreement by the affirmative vote of the holders of
a majority of the outstanding MC Shares). This Agreement and the PN Option
Agreement have been duly executed and delivered by MC and (assuming due and
valid authorization, execution and delivery hereof by the other parties hereto
and thereto) are valid and binding obligations of MC enforceable against MC in
accordance with their terms, except that (i) such enforcement may be subject to
applicable bankruptcy, insolvency, reorganization, moratorium or other similar
laws, now or hereafter in effect, affecting creditors' rights generally, and
(ii) the remedy of specific performance and injunctive and other forms of
equitable relief may be subject to equitable defenses and to the discretion of
the court before which any proceeding therefor may be brought.
 
     (b) The Board of Directors of MC has approved the transactions contemplated
by this Agreement, the PN Option Agreement and the MC Voting Agreement so as to
render inapplicable thereto the provisions of Section 203 of the DGCL.
 
     (c) MC has received the written opinion of Morgan Stanley & Co. (the "MC
Financial Advisor"), dated on or before the date of this Agreement, to the
effect that, as of such date, the consideration to be paid to the holders of PN
Shares pursuant to the Merger is fair to the holders of MC Shares from a
financial point of view (the "MC Fairness Opinion"). MC has delivered to PN a
copy of the MC Fairness Opinion for informational purposes only.
 
     Section 4.4  Consents and Approvals; No Violations; Licenses.  (a) Neither
the execution, delivery or performance of this Agreement or the PN Option
Agreement by MC, nor the consummation by MC of the transactions contemplated
hereby or thereby, nor compliance by MC with any of the provisions hereof or
thereof will (i) conflict with or result in any breach of any provision of the
Certificate of Incorporation or By-Laws or other organizational documents of MC
or of any of its Subsidiaries, (ii) require on the part of MC any filing with,
or permit, authorization, consent or approval of, any Governmental Entity except
for (A) filings, permits, authorizations, consents and approvals as may be
required under, and other applicable requirements of, the Exchange Act, the HSR
Act, the FCC, the Communications Act, state public utility or public service
laws, the Securities Act, the DGCL, state or foreign laws relating to takeovers,
state securities or blue sky laws, and the laws of other states in which MC is
qualified to do or is doing business, or (B) where the failure to obtain such
permits, authorizations, consents or approvals or to make such filings,
individually or in the aggregate, would not have a Material Adverse Effect on MC
and its Subsidiaries, taken as a whole, or prevent MC from consummating the
transactions contemplated hereby or thereby, (iii) except as disclosed on
Schedule 4.4 to the MC Disclosure Letter, result in a violation or breach of, or
constitute (with or without due notice or lapse of time or both) a default (or
give rise to any right of termination, cancellation or acceleration) under, any
of the terms, conditions or provisions of any note, bond, mortgage, indenture,
lease, license, contract, agreement or other instrument or obligation to which
MC or any of its Subsidiaries is a party or by which any of them or any of their
properties or assets may be bound and which has been included as an exhibit to
MC's Annual Report on Form 10-K for the fiscal year ended December 31, 1996 (the
"MC Material
 
                                       14
<PAGE>   114
 
Agreements") or (iv) violate any order, writ, injunction, decree, statute, rule
or regulation applicable to MC, any of its Subsidiaries or any of their
properties or assets, excluding from the foregoing clauses (iii) and (iv) such
violations, breaches or defaults which would not, individually or in the
aggregate, have a Material Adverse Effect on MC and its Subsidiaries, taken as a
whole, or prevent MC from consummating the transactions contemplated hereby.
 
     (b) MC or one of its Subsidiaries holds all licenses, permits,
certificates, franchises, ordinances, registrations, or other rights,
applications and authorizations filed with, granted or issued by, or entered by
any Governmental Entity, including without limitation, the FCC, or any State
Authority, that are required for the conduct of its businesses as now being
conducted, except for those the absence of which would not, individually or in
the aggregate, have a Material Adverse Effect on MC and its Subsidiaries, taken
as a whole (collectively, "MC Licenses"). The MC Licenses are valid and in full
force and effect, and the terms of said MC Licenses are not subject to any
restrictions or conditions that materially limit or would materially limit the
operations of the business of MC or any of its Subsidiaries as presently
conducted, other than restrictions or conditions generally applicable to
licenses of that type. The MC Licenses granted, issued or entered by the FCC are
subject to the Communications Act. There are no proceedings pending or, to the
best knowledge of MC, complaints or petitions by others, or threatened
proceedings, before the FCC or any other Governmental Entity relating to the
business or operations of MC or any of its Subsidiaries or the MC Licenses, and
there are no facts or conditions that reasonably could be expected to constitute
grounds for the FCC to revoke, terminate, suspend, deny, annul, or impose
conditions on any renewal of any MC Licenses, in either case that would,
individually or in the aggregate, have a Material Adverse Effect on MC and its
Subsidiaries, taken as a whole, or prevent MC from consummating the transactions
contemplated hereby or to impose any fines, forfeitures or other penalties on MC
or its Subsidiaries that would, individually or in the aggregate, have a
Material Adverse Effect on MC and its Subsidiaries, taken as a whole.
 
     Section 4.5  SEC Reports and Financial Statements.  Since July 1, 1995, MC
and its Subsidiaries have filed with the SEC all forms, reports, schedules,
statements, and other documents required to be filed by them with the SEC (as
such documents have been amended since the time of their filing, collectively,
the "MC SEC Documents"), have included as exhibits all material contracts, and
have filed all exhibits required to be filed with the MC SEC Documents other
than any exhibits (excluding material contracts) that the failure to file would
not, individually or in the aggregate, have a Material Adverse Effect on MC and
its Subsidiaries, taken as a whole. As of their respective dates or, if amended,
as of the date of the last such amendment, the MC SEC Documents, including,
without limitation, any financial statements or schedules included therein,
complied in all material respects with the applicable requirements of the
Securities Act and the Exchange Act, and did not 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 light of the
circumstances under which they were made, not misleading. None of MC's
Subsidiaries is required to file any forms, reports or other documents with the
SEC pursuant to Section 12 or 15 of the Exchange Act. The consolidated financial
statements of MC for the fiscal year ended December 31, 1996 (including the
related notes thereto) included in MC's Annual Report on Form 10-K and the
consolidated financial statements of MC for the six months ended June 30, 1997,
copies of which have been provided to PN (together, the "MC Financial
Statements"), have been prepared from, and are in accordance with, the books and
records of MC and its consolidated Subsidiaries, comply in all material respects
with applicable accounting requirements and comply (or as to the MC Financial
Statements for the six months ended June 30, 1997, will comply) with the
published rules and regulations of the SEC with respect thereto, have been
prepared in accordance with GAAP applied on a consistent basis throughout the
periods involved (except as may be indicated in the notes thereto), and present
fairly the consolidated financial position and the consolidated results of
operations and cash flows of MC and its consolidated Subsidiaries as at the
dates thereof or for the periods presented therein.
 
     Section 4.6  No Undisclosed Liabilities.  Except (i) as disclosed in the MC
SEC Documents, (ii) as set forth in Schedule 4.6 to the MC Disclosure Letter,
and (iii) for liabilities incurred in the ordinary course of business and
consistent with past practice, and liabilities incurred in connection with the
consummation of the transactions contemplated hereby (none of which,
individually or in the aggregate, is reasonably likely to have a Material
Adverse Effect on MC and its Subsidiaries, taken as a whole), since December 31,
1996, neither
 
                                       15
<PAGE>   115
 
MC nor any of its Subsidiaries has incurred any liabilities or obligations of
any nature (whether accrued, absolute, contingent or otherwise) which would be
required by GAAP to be reflected on a consolidated balance sheet of MC and its
Subsidiaries (including the notes thereto), and, which individually or in which
the aggregate, is reasonably likely to have a Material Adverse Effect on MC and
its Subsidiaries, taken as a whole.
 
     Section 4.7  Absence of Certain Changes.  Except as contemplated by this
Agreement, or as disclosed in the MC SEC Documents or in Schedule 4.7 to the MC
Disclosure Letter, since December 31, 1996, (i) MC and its Subsidiaries have
conducted their respective businesses only in the ordinary course of business
and consistent with past practice, (ii) there has not been any change in the
business, properties, assets, liabilities, financial condition, cash flows,
operations, licenses, franchises or results of operations of MC or its
Subsidiaries which has had a Material Adverse Effect on MC and its Subsidiaries,
taken as a whole, and (iii) there has not been any action taken by MC or its
Subsidiaries of a type described in clauses (i) through (vi) of Section 5.1(b).
 
     Section 4.8  Employee Benefit Plans; ERISA; Labor.  (a) Schedule 4.8 to the
MC Disclosure Letter sets forth (i) a list of all employee benefit plans
(including but not limited to plans described in section 3(3) of ERISA),
maintained by MC, any of its Subsidiaries or any trade or business, whether or
not incorporated (a "MC ERISA Affiliate"), which together with MC would be
deemed a "single employer" within the meaning of section 4001(b)(1) of ERISA
("MC Benefit Plans") and (ii) all employment, retention, and severance
agreements with employees of MC and its Subsidiaries ("MC Employee Agreements").
True and complete copies of all current MC Benefit Plans and MC Employee
Agreements have been provided to PN by MC.
 
     (b) Except as provided in Schedule 4.8 to the MC Disclosure Letter, with
respect to each MC Benefit Plan, (i) if intended to qualify under section 401(a)
or 401(k) of the Code, such plan has received a determination letter from the
IRS stating that it so qualifies and that its trust is exempt from taxation
under section 501(a) of the Code, no such determination letter has been revoked
and no such revocation has been threatened, nothing has occurred that could
reasonably be expected to cause the relevant MC Benefit Plan to lose such
qualification or exemption, and no such plan holds "employer securities" as
defined in Section 407(d)(1) of ERISA; (ii) such plan has been administered in
all material respects in accordance with its terms and applicable law, including
state and federal securities laws; (iii) no breaches of fiduciary duty by MC,
or, to MC's knowledge, by any other person, have occurred that might reasonably
be expected to give rise to material liability on the part of MC or any MC ERISA
Affiliate; (iv) no disputes are pending, or, to the knowledge of MC, threatened
that might reasonably be expected to give rise to material liability on the part
of MC or any MC ERISA Affiliate; (v) no prohibited transaction (within the
meaning of Section 406 of ERISA) has occurred that might reasonably be expected
to give rise to material liability on the part of MC or any MC ERISA Affiliate;
(vi) all contributions required to be made to such plan as of the date hereof
(taking into account any extensions for the making of such contributions) have
been made in full; (vii) to MC's knowledge, no MC Benefit Plans are presently
under audit or examination (nor has notice been received of a potential audit or
examination) by the IRS, Department of Labor, or any other governmental agency
or entity, and no matters are pending with respect to any MC Benefit Plan under
the IRS's Voluntary Compliance Resolution program, its Closing Agreement
Program, or other similar programs; and (viii) all monies withheld from
employees with respect to MC Benefit Plans have been transferred to the
appropriate plan in accordance with the terms of such plan and applicable law.
 
     (c) No MC Benefit Plan is a "multiemployer plan," as defined in section
3(37) of ERISA and no MC Benefit Plan is or has been subject to Title IV of
ERISA.
 
     (d) No liability under Title IV of ERISA has been incurred by MC or any MC
ERISA Affiliate (whether direct, indirect, actual, or contingent, and including,
without limitation, withdrawal liability to a multiemployer plan), and no
condition exists that presents a material risk to MC or any MC ERISA Affiliate
of incurring a material liability under such Title. No MC Benefit Plan has
incurred an accumulated funding deficiency, as defined in section 302 of ERISA
or section 312 of the Code, whether or not waived.
 
                                       16
<PAGE>   116
 
     (e) With respect to each MC Benefit Plan that is a "welfare plan" (as
defined in section 3(1) of ERISA), no such plan provides material medical or
death benefits with respect to current or former employees of MC or any of its
Subsidiaries beyond their termination of employment (other than to the extent
required by applicable law). All group health plans of MC and any MC ERISA
Affiliates have been operated in material compliance with the requirements of
Section 4980B (and its predecessor) and 5000 of the Code, and MC and the MC
ERISA Affiliates have provided, or will have provided prior to the Effective
Date, to individuals entitled thereto all notices and coverage pursuant to
Section 4980B required before such date, except to the extent that failure to
provide such notice or coverage is not reasonably likely to result, individually
or in the aggregate, in a Material Adverse Effect on MC and its Subsidiaries,
taken as a whole.
 
     (f) Except as required by applicable law, no MC Benefit Plan, plan
documentation or agreement, summary plan description or other written
communication distributed generally to employees of MC or its Subsidiaries by
its terms prohibits the amendment or termination of any such MC Benefit Plan.
 
     (g) As of the date hereof, except for MC Employee Agreements and MC Option
Plans or as described in Schedule 4.8 to the MC Disclosure Letter, MC and its
Subsidiaries are not parties to any (i) agreement with any director, executive
officer or other key employee of MC or its Subsidiaries (A) the benefits of
which are contingent, or the terms of which are materially altered, upon the
occurrence of a transaction involving MC or its Subsidiaries of the nature of
any of the transactions contemplated by this Agreement, (B) providing any term
of employment or compensation guarantee, or (C) providing severance benefits or
other benefits after the termination of employment of such director, executive
officer or key employee; (ii) agreement, plan or arrangement under which any
person may receive payments from MC or its Subsidiaries that would be subject to
the tax imposed by Section 4999 of the Code or included in the determination of
such person's "parachute payment" under Section 280G of the Code; and (iii)
agreement or plan binding MC or its Subsidiaries, including without limitation
any stock option plan, stock appreciation right plan, restricted stock plan,
stock purchase plan, severance benefit plan or employee benefit plan, any of the
benefits of which will be increased, or the vesting of the benefits of which
will be accelerated, by the occurrence of any of the transactions contemplated
by this Agreement or the value of any of the benefits of which will be
calculated on the basis of any of the transactions contemplated by this
Agreement.
 
     (h) As of the date hereof, no collective bargaining agreement is binding
and in force against MC or its Subsidiaries or is currently under negotiation,
and no current employees of MC or its Subsidiaries are represented by any labor
union. As of the date hereof, to MC's knowledge, no labor representation effort
exists with respect to MC or its Subsidiaries.
 
     Section 4.9  Litigation.  Schedule 4.9 hereto sets forth each suit, action
or proceeding pending (as to which MC has received notice), or, to the knowledge
of MC, threatened against MC, any of its Subsidiaries, or any of their
properties or assets on the date hereof. Except as set forth on Schedule 4.9 to
the MC Disclosure Letter, there is no suit, action or proceeding pending (as to
which MC has received notice), or, to the knowledge of MC, threatened against
MC, any of its Subsidiaries or any of their properties or assets that,
individually or in the aggregate, is reasonably likely to have a Material
Adverse Effect on MC and its Subsidiaries, taken as a whole, if resolved
adversely to MC or its Subsidiaries. As of the date hereof, neither MC nor any
of its Subsidiaries, nor any of their respective properties, is subject to any
order, writ, judgment, injunction, decree, determination or award having, or
which would have, a Material Adverse Effect on MC and its Subsidiaries, taken as
a whole, or which would prevent MC from consummating the transactions
contemplated hereby.
 
     Section 4.10  No Default; Compliance with Applicable Laws.  Neither MC nor
any of its Subsidiaries is in default (or would be in default after passage of
time or giving of notice) or violation in any material respect of any term,
condition or provision of (i) its respective Certificate of Incorporation or
By-laws or other organizational documents, (ii) any MC Material Agreement or
(iii) any federal, state, local or foreign statute, law, ordinance, rule,
regulation, judgment, decree, order, concession, grant, franchise, permit or
license or other governmental authorization or approval applicable to MC or any
of its Subsidiaries or by which they or their respective assets may be bound
(other than matters addressed in Sections 4.4, 4.8, 4.9, 4.10, 4.11, and 4.12),
excluding from the foregoing clauses (ii) and (iii), defaults or violations
which are not reasonably likely
 
                                       17
<PAGE>   117
 
to have, individually or in the aggregate, a Material Adverse Effect on MC and
its Subsidiaries, taken as a whole, or prevent MC from consummating the
transactions contemplated hereby.
 
     Section 4.11  Taxes.  Except as set forth on Schedule 4.11 to the MC
Disclosure Letter:
 
     (a) MC and its Subsidiaries have (i) duly and timely filed (or there has
been filed on their behalf) with the appropriate governmental authorities all
Tax Returns (as hereinafter defined) required to be filed by them on or prior to
the date hereof, other than those Tax Returns for which extensions for filing
have been obtained in a timely manner, and such Tax Returns are true, correct
and complete in all material respects, and (ii) duly paid in full all Taxes (as
hereinafter defined) shown to be due on such Tax Returns or have provided
adequate reserves in their financial statements for any Taxes that have not been
paid. There are no liens on any of the assets of MC or any of its Subsidiaries
that arose in connection with any delinquency in paying any Tax.
 
     (b) As of the date hereof, there are no ongoing federal, state, local or
foreign audits or examinations of any Tax Return of MC or its Subsidiaries.
 
     (c) As of the date hereof, there are no outstanding requests, agreements,
consents or waivers to extend the statutory period of limitations applicable to
the assessment of any Taxes or deficiencies against MC or any of its
Subsidiaries (excluding extensions for filings that have been timely obtained),
and no power of attorney granted by either MC or any of its Subsidiaries with
respect to any Taxes is currently in force.
 
     (d) Neither MC nor any of its Subsidiaries is a party to any agreement
providing for the allocation or sharing of Taxes.
 
     Section 4.12  Environmental Matters.  (a) MC and its Subsidiaries have
complied in all respects with all applicable Environmental Laws, except to the
extent that any failure to comply is not reasonably likely to have, individually
or in the aggregate, a Material Adverse Effect on MC and its Subsidiaries, taken
as a whole. There is no pending or, to the knowledge of MC, threatened, civil or
criminal litigation, written notice or violation, formal administrative
proceeding or investigation, inquiry or information request by any Governmental
Entity relating to any Environmental Law involving MC or any of its Subsidiaries
or any of their properties.
 
     (b) With the exception of releases that are not reasonably likely to have,
individually or in the aggregate, a Material Adverse Effect on MC and its
Subsidiaries, taken as a whole, there have been no releases of any Materials of
Environmental Concern into the environment by MC or any of its Subsidiaries, or,
to the knowledge of MC, by any other party at any parcel of real property or any
facility formerly or currently owned, operated or controlled by MC or any of its
Subsidiaries.
 
     Section 4.13  Insurance.  MC and its Subsidiaries maintain adequate
insurance with respect to their respective businesses and are in compliance with
all material requirements and provisions thereof.
 
     Section 4.14  Proxy Statement; Registration Statement; Other
Information.  The information supplied or to be supplied by MC with respect to
MC, its officers and directors and its Subsidiaries (i) to be contained in the
Proxy Statement; and (ii) to be contained in the Registration Statement will
not, on the respective dates on which (A) the Proxy Statement is first mailed to
stockholders of PN and MC, (B) the Meetings are held (in the case of the Proxy
Statement), (C) the Registration Statement becomes effective (in the case of the
Registration Statement), and (D) in the case of the Proxy Statement and the
Registration Statement, as such Proxy Statement or Registration Statement is
then amended or supplemented, at the Effective Time, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein, in light of
the circumstances under which they were made, not misleading. When the
Registration Statement or any post-effective amendment thereto shall become
effective and when the Proxy Statement or any amendment or supplement thereto
shall be mailed, and at the time of each Meeting and at the Effective Time, the
Registration Statement or the Proxy Statement will comply as to form with all
applicable laws including the provisions of the Securities Act and the Exchange
Act and the rules and regulations promulgated thereunder. If at any time prior
to the Effective Time any event with respect to MC, its officers and directors
and its Subsidiaries should occur which is or should be described in an
amendment of, or a supplement to, the Proxy Statement or the Registration
Statement, MC shall promptly so inform PN and such event shall be so described
in an amendment or supplement to Proxy
 
                                       18
<PAGE>   118
 
Statement or the Registration Statement and such information in such amendment
or supplement will not 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, in light of the circumstances under which they were
made, not misleading.
 
     Section 4.15  Transactions with Affiliates.  Except as set forth in the MC
SEC Documents or on Schedule 4.15 to the MC Disclosure Letter, since December
31, 1996, neither MC nor any of its Subsidiaries has entered into any
transaction with any current director or officer of MC or any Subsidiary or any
transaction which would be subject to proxy statement disclosure under the
Exchange Act pursuant to the requirements of Item 404 of Regulation S-K.
 
     Section 4.16  Share Ownership.  Except as set forth in Schedule 4.16 to the
MC Disclosure Letter, as of the date hereof, neither MC nor any of its
Subsidiaries or affiliates beneficially owns any PN Shares.
 
     Section 4.17  Brokers.  Except as set forth on Schedule 4.17 to the MC
Disclosure Letter, other than the MC Financial Advisor, no broker, finder or
investment banker is entitled to any brokerage, finder's or other fee or
commission from MC in connection with the transactions contemplated by this
Agreement.
 
                                   ARTICLE V
 
                                   COVENANTS
 
     Section 5.1  Interim Operations of PN and MC.  (a) PN covenants and agrees
that, except (x) as contemplated by this Agreement or the PN Option Agreement,
(y) as set forth in Schedule 5.1(a) to the PN Disclosure Letter, or (z) as
agreed in writing by MC, after the date hereof and prior to the Effective Time:
 
          (i) the business of PN and its Subsidiaries shall be conducted only
     in, and PN and its Subsidiaries shall not take any action except in, the
     ordinary and usual course of business and consistent with past practice,
     and PN and its Subsidiaries shall use all reasonable efforts, consistent
     with past practice, to maintain and preserve their business organizations,
     assets, employees and advantageous business relations;
 
          (ii) PN will not, directly or indirectly, (A) sell, transfer or pledge
     or agree to sell, transfer or pledge any PN Shares, preferred stock of PN,
     or capital stock of any of its Subsidiaries either directly or indirectly;
     or (B) split, combine or reclassify the outstanding PN Shares or any
     outstanding capital stock of any of the Subsidiaries of PN;
 
          (iii) neither PN nor any of its Subsidiaries shall (A) amend its
     organizational documents; (B) issue, grant, sell, pledge, dispose of or
     encumber any shares of, or securities convertible into or exchangeable for,
     or options, warrants, calls, commitments or rights of any kind to acquire,
     any shares of capital stock of any class of PN or its Subsidiaries or any
     other ownership interests (including but not limited to stock appreciation
     rights or phantom stock), other than PN Shares reserved for issuance on the
     date hereof pursuant to the exercise of PN Options outstanding on the date
     hereof; (C) transfer, lease, license, sell, mortgage, pledge, dispose of,
     or encumber any material assets individually or in the aggregate for
     consideration in excess of $125,000 per fiscal quarter, other than in the
     ordinary and usual course of business and consistent with past practice;
     (D) incur any indebtedness other than borrowings under existing agreements
     or modify the terms of any indebtedness; (E) incur any liability, other
     than borrowings permitted by clause (D) above of money under existing
     agreements or incurrence of other liabilities in the ordinary and usual
     course of business and consistent with past practice; or (F) redeem,
     purchase or otherwise acquire directly or indirectly any of its capital
     stock;
 
          (iv) neither PN nor any of its Subsidiaries shall terminate any PN
     Material Agreement, modify or amend any PN Material Agreements in any
     material respect or waive, release or assign any material rights or claims
     except in the ordinary course of business and consistent with past
     practice;
 
          (v) PN will not declare, set aside or pay any dividend or other
     distribution payable in cash, stock or property with respect to its capital
     stock;
 
                                       19
<PAGE>   119
 
          (vi) each of PN and its Subsidiaries shall maintain in full force and
     effect such types and amounts of insurance issued by insurers of recognized
     responsibility insuring it with respect to its respective business and
     properties, in such amount and against such losses and risks as are usually
     carried by persons engaged in the same or similar businesses;
 
          (vii) neither PN nor any of its Subsidiaries shall: (A) except for or
     on behalf of Subsidiaries, assume, guarantee, endorse or otherwise become
     liable or responsible (whether directly, contingently or otherwise) for the
     obligations of any other person; (B) make any loans, advances or capital
     contributions to, or investments in, any other person (other than to
     Subsidiaries of PN pursuant to PN's written obligations on the date
     hereof), other than in the ordinary course of business and consistent with
     past practice; or (C) enter into any commitment or transaction with respect
     to any of the foregoing;
 
          (viii) neither PN nor any of its Subsidiaries shall change any of the
     accounting methods used by it unless required by GAAP;
 
          (ix) neither PN nor any of its Subsidiaries will adopt a plan of
     complete or partial liquidation, dissolution, merger, consolidation,
     restructuring, recapitalization or other reorganization of PN or any of its
     Subsidiaries (other than the Merger);
 
          (x) neither PN nor any of its Subsidiaries will acquire (by merger,
     consolidation, or acquisition of stock or assets or otherwise) any
     corporation, partnership or other business organization or division of any
     such entity;
 
          (xi) neither PN nor any of its Subsidiaries will (A) increase the
     compensation or fringe benefits of any of its directors, officers or
     employees, provided, that PN may increase the compensation of employees of
     PN or its Subsidiaries who are not officers or directors of PN and whose
     annual compensation as of the date hereof is less than $50,000, if such
     increases are made in the ordinary course of business and consistent with
     past practice, and provided that PN will promptly advise MC of any
     increases of compensation of its employees, (B) grant any severance or
     termination pay not currently required to be paid under existing severance
     plans or agreements to any present or former director, office or employee
     of PN or any of its Subsidiaries, (C) enter into or modify any employment,
     consulting or severance agreement with any present or former director,
     officer or employee of PN or any of its Subsidiaries, (D) or establish,
     adopt, enter into or amend or terminate any collective bargaining, bonus,
     profit sharing, thrift, compensation, stock option, restricted stock,
     pension, retirement, deferred compensation, employment termination,
     severance or other plan, agreement, trust, fund, policy or arrangement for
     the benefit of any directors, officers or employees of PN;
 
          (xii) neither PN nor any of its Subsidiaries will make any material
     tax election or settle or compromise any material federal, state, local or
     foreign tax liability except for settlements that would not have a Material
     Adverse Effect on PN and its Subsidiaries, taken as a whole;
 
          (xiii) neither PN nor any of its Subsidiaries will settle or
     compromise any pending or threatened suit, action or claim, which
     settlement or compromise is material to PN and its Subsidiaries, taken as a
     whole, or which relates to the transactions contemplated hereby;
 
          (xiv) neither PN nor any of its Subsidiaries will pay, discharge or
     satisfy any material claims, liabilities or obligations (absolute, accrued,
     asserted or unasserted, contingent or otherwise), other than the payment,
     discharge or satisfaction in the ordinary course of business and consistent
     with past practice of liabilities (A) reflected or reserved against in the
     PN Financial Statements, (B) incurred in the ordinary course of business
     and consistent with past practice or (C) incurred in a manner not otherwise
     prohibited under this Section 5.1(a);
 
          (xv) PN shall not effect a registration under the Securities Act with
     respect to PN Shares held by any person or entity, other than the
     registration of PN Shares pursuant to registration rights agreements in
     effect on the date hereof and described in Schedule 3.2(a) to the PN
     Disclosure Letter, or pursuant to the PN Option Agreement; and
 
                                       20
<PAGE>   120
 
          (xvi) neither PN nor any of its Subsidiaries will authorize or enter
     into an agreement to do any of the foregoing.
 
     (b) MC covenants and agrees that, except (w) as contemplated by this
Agreement or the PN Option Agreement, (x) as set forth in Schedule 5.1(b) to the
MC Disclosure Letter, or (y) as agreed in writing by PN, after the date hereof
and prior to the Effective Time:
 
          (i) the business of MC and its Subsidiaries shall be conducted only
     in, and MC and its Subsidiaries shall not take any action except in, the
     ordinary and usual course of business and consistent with past practice,
     and MC and its Subsidiaries shall use all reasonable effects, consistent
     with past practice, to maintain and preserve their business organizations,
     assets, employees and advantageous business relations;
 
          (ii) MC will not (A) amend its Certificate of Incorporation or
     By-Laws; provided, that the Board of Directors of MC shall submit a
     resolution to approve the Amendment Proposal for a vote of the stockholders
     at the Meeting, and if such amendment is approved at the Meeting, MC shall
     so amend its Certificate of Incorporation or (B) redeem, purchase or
     otherwise acquire directly or indirectly any of its capital stock,
     provided, that MC may redeem Series A Preferred or Series B Preferred in
     accordance with the respective terms of such stock;
 
          (iii) MC will not declare, set aside or pay any dividend or other
     distribution payable in cash, stock or property with respect to its capital
     stock except for dividends on the Series A Preferred and the Series B
     Preferred payable in shares of such series in accordance with the
     respective terms of such stock;
 
          (iv) MC will not, directly or indirectly, split, combine or reclassify
     the outstanding MC Shares;
 
          (v) with the exception of the existing liens described in Schedule
     4.2(b) to the MC Disclosure Letter, neither MC nor any of its Subsidiaries
     will issue, sell, pledge, dispose of or encumber any shares of, or
     securities convertible into or exchangeable for, or options, warrants,
     calls, commitments or rights of any kind to acquire, any shares of capital
     stock of any class of MC or its Subsidiaries, other than (A) issuances of
     MC Shares reserved for issuance on the date hereof upon exercise of MC
     Options outstanding on the date hereof, (B) issuances by MC of MC Shares
     upon conversion of the Series A Preferred or Series B Preferred in
     accordance with the respective terms of such stock, (C) issuances of Series
     A Preferred or Series B Preferred as dividends in accordance with the
     respective terms of such stock, (D) issuances by MC of MC Shares or other
     securities for the fair market value of such MC Shares or other securities
     at the time of such issuance, provided, that the issuance of MC Shares
     pursuant to an acquisition agreement with a third party on terms negotiated
     on an arms' length basis or the issuance of other securities convertible
     into MC Shares to an unaffiliated third party on terms negotiated on an
     arms' length basis shall be deemed for purposes hereof the issuance of MC
     Shares at the fair market value of such MC Shares, and (E) the granting
     (and issuance of MC Shares upon exercise) of options pursuant to MC's
     director and employee stock option plans as in effect on the date hereof,
     with exercise prices equal to the fair market value of MC Shares on the
     date of grant;
 
          (vi) MC will not adopt a plan of complete or partial liquidation,
     dissolution, merger, consolidation, restructuring, recapitalization or
     other reorganization of MC or any of its Subsidiaries;
 
          (vii) MC will use its reasonable best efforts to maintain the listing
     of MC Shares on the Nasdaq Stock Market;
 
          (viii) neither MC nor any of its Subsidiaries will authorize or enter
     into an agreement to do any of the foregoing.
 
     Section 5.2  Stockholder Approval; Meetings; Etc.  Each of PN and MC will
take all action necessary in accordance with applicable law, the rules of
Nasdaq, this Agreement and its respective Certificate of Incorporation and
By-Laws to convene a meeting of its stockholders (each, a "Meeting") as promptly
as practicable after the date hereof to consider and vote upon a proposal to
approve and adopt this Agreement (the "Merger Proposal") and, in the case of MC,
to consider and vote upon a proposal to amend MC's Certificate of Incorporation
to increase the authorized number of MC Shares to 80,000,000 (the "Amend-
 
                                       21
<PAGE>   121
 
ment Proposal"). The Boards of Directors of each of PN (subject to a
determination of the Board of Directors of PN made in accordance with Section
5.9(f)) and MC will (i) recommend that their respective stockholders vote in
favor of the Merger Proposal and, in the case of MC, the Amendment Proposal and
(ii) use their respective reasonable best efforts to cause to be solicited
proxies from stockholders of PN or MC, as the case may be, to be voted at their
Meetings in favor of the Merger Proposal and, in the case of MC, the Amendment
Proposal and to take all other actions necessary or advisable to secure the vote
or consent of stockholders required to effect the Merger.
 
     Section 5.3  Proxy Statement, Registration Statement, Etc.  (a) PN and MC
shall promptly prepare and file with the SEC under the Exchange Act, and shall
use their reasonable best efforts to have cleared by the SEC and shall
thereafter promptly mail to their stockholders, the Proxy Statement for the
Meetings, which shall also constitute the prospectus included in the
Registration Statement to be filed by MC pursuant to Section 5.3(b). The Proxy
Statement shall be mailed to stockholders of each of PN and MC, as the case may
be, at least 20 business days in advance of the date of its Meeting. MC shall
furnish PN, and PN shall furnish MC, with all information and shall take such
other action as PN or MC, as the case may be, may reasonably request in
connection with the Proxy Statement. The Proxy Statement shall contain the
recommendation of each Board of Directors (subject to a determination of the
Board of Directors of PN made in accordance with Section 5.9(f)) that
stockholders of PN and MC, as the case may be, approve and adopt the Merger
Proposal, and, in the case of MC, the Amendment Proposal. PN and MC shall cause
their respective Financial Advisers to provide their written consent to the
inclusion of or reference to their respective Fairness Opinions in the Proxy
Statement and Registration Statement.
 
     (b) MC shall promptly prepare and file with the SEC under the Securities
Act the Registration Statement with respect to MC Shares to be issued in the
Merger and shall use its reasonable best efforts to have the Registration
Statement declared effective by the SEC as promptly as practicable. MC will not
enter into any transaction that would result in any material delay in filing or
declaration of effectiveness of the Registration Statement due to the need to
provide additional financial statements or pro forma financial statements. MC
shall also take any action required to be taken under state blue sky or other
securities laws in connection with the issuance of MC Shares in the Merger. PN
shall furnish MC with all information and shall take such other action as MC may
reasonably request in connection with any such action.
 
     (c) PN and MC shall notify one another of the receipt of the comments of
the SEC and of any requests by the SEC for amendments or supplements to the
Proxy Statement or the Registration Statement or for additional information, and
shall promptly supply one another with copies of all correspondence between any
of them (or their representatives) and the SEC (or its staff) with respect
thereto. If, at any time prior to either Meeting, any event should occur
relating to or affecting PN, MC, or their respective officers or directors,
which event should be described in an amendment or supplement to the Proxy
Statement or the Registration Statement, the parties shall promptly inform one
another and shall cooperate in promptly preparing, filing and clearing with the
SEC and, if required by applicable securities laws, mailing to PN's or MC's
stockholders, as the case may be, such amendment or supplement.
 
     Section 5.4  Compliance with the Securities Act.  (a) Prior to the
Effective Time, PN shall cause to be delivered to MC a list identifying all
stockholders of PN who are, at the time of the PN Meeting, considered by PN to
be "affiliates" of PN for purposes of Rule 145 under the Securities Act (the
"Affiliates").
 
     (b) PN shall use reasonable efforts to cause each person who is identified
as an Affiliate to deliver to MC on or prior to the Effective Time a written
agreement, in such form as may be agreed to by the parties, that such person
will not offer to sell, sell or otherwise dispose of any of the MC Shares issued
to such person in connection with the Merger, except pursuant to an effective
registration statement or in compliance with Rule 145 or pursuant to an
exemption from the registration requirements of the Securities Act. The
Surviving Corporation shall be entitled to place appropriate legends on the
certificates evidencing MC Shares to be received by such Affiliates pursuant to
the terms of this Agreement, and to issue appropriate stop transfer instructions
to the transfer agent for MC Shares, to the effect that MC Shares received or to
be received by such Affiliate pursuant to the terms of this Agreement may only
be sold, transferred or otherwise conveyed, pursuant to an effective
registration statement under the Securities Act or in accordance with the
provisions of
 
                                       22
<PAGE>   122
 
Rule 145 or pursuant to an exemption provided from registration under the
Securities Act. The foregoing restrictions on the transferability of MC Shares
shall apply to all purported sales, transfers and other conveyances of the
shares received or to be received by such Affiliate pursuant to the Merger.
 
     Section 5.5  Nasdaq Listing.  MC shall use its reasonable best efforts to
cause MC Shares to be issued in the Merger to be admitted for quotation on the
Nasdaq Stock Market.
 
     Section 5.6  Approvals and Consents; Cooperation.  (a) Subject to the terms
and conditions herein provided, each of the parties hereto agrees to use all
reasonable efforts to take, or cause to be taken, all actions and to do, or
cause to be done, all things necessary, proper or advisable to consummate and
make effective as promptly as practicable the transactions contemplated this
Agreement, and to cooperate with each other in connection with the foregoing,
including using all reasonable efforts: (i) to obtain all necessary waivers,
consents and approvals from other parties to loan agreements, leases and other
contracts; (ii) to obtain all necessary consents, approvals and authorizations
as are required to be obtained under any federal, state or foreign laws or
regulations; (iii) to lift or rescind any injunction or restraining order or
other order adversely affecting the ability of the parties to consummate the
transactions contemplated hereby; (iv) to effect all necessary registrations and
filings, including, but not limited to, filings under the HSR Act and
Communications Act and submissions of information requested by Governmental
Entities; (v) to cause the Merger and the actions contemplated herein not to
constitute a "Change of Control" as defined in and solely for the purposes of
the Indenture; and (vi) to fulfill all conditions to this Agreement. For
purposes of the foregoing, the obligations of MC and PN to use "best efforts" or
"reasonable efforts" to obtain waivers, consents and approvals to loan
agreements, leases and other contracts shall not include any obligation to agree
to a modification of the terms of such documents, except as expressly
contemplated hereby or to make any monetary payment in consideration of such
waiver, consent or approval.
 
     (b) PN and MC shall take all reasonable actions necessary to file as soon
as practicable notifications under the HSR Act and to respond as promptly as
practicable to any inquiries received from the Federal Trade Commission or the
Antitrust Division of the Department of Justice for additional information or
documentation and to respond as promptly as practicable to all inquiries and
requests received from any State Attorney General or other Governmental Entity
in connection with antitrust matters.
 
     (c) Within fifteen business days of the date of this Agreement, or as soon
thereafter as practicable, MC and PN shall prepare and make all filings (the
"Regulatory Filings") required to be made with the FCC pursuant to the
Communications Act and with any State Authority as are required to permit the
consummation of the Merger and shall thereafter promptly make any additional or
supplemental submissions required or requested by the FCC and any such State
Authority. With respect to the Regulatory Filings, counsel to PN shall be
responsible for preparing, with the advice and consent of counsel to MC, the
transferor's portion of the submissions with respect to the PN Licenses, and
counsel to MC shall be responsible for preparing, with the advice and consent of
counsel to PN, the transferee's portion of such submissions. Counsel to PN shall
also be responsible for preparing, with the advice and consent of counsel to MC,
any pro forma transfer applications with respect to the PN Licenses that are
required to permit the Merger. All filing fees associated with Regulatory
Filings pursuant to this Section 5.6(c) shall be shared equally by MC and PN.
Each party shall bear its own counsel fees in connection with the Regulatory
Filings.
 
     (d) Notwithstanding any provision of this Agreement or the PN Option
Agreement to the contrary, MC shall not assume, either directly or indirectly,
de jure or de facto control of PN without the prior consent of the FCC and any
State Authority of competent jurisdiction. Nothing contained herein shall,
without the prior consent of the FCC and any State Authority of competent
jurisdiction, give MC any control or responsibility for (i) PN's facilities,
including without limitation control of use of the facilities; (ii) daily
operations; (iii) policy decisions, including preparing and filing applications
with the FCC; (iv) employment, supervision and dismissal of personnel; or (v)
payment of financing obligations, including expenses arising out of operations.
 
     Section 5.7  Access to Information.  Upon reasonable notice, each of PN and
MC shall (and shall cause each of its Subsidiaries to) afford to the officers,
employees, accountants, counsel, financing sources and other representatives of
MC or PN, as the case may be, access, during normal business hours during the
period
 
                                       23
<PAGE>   123
 
prior to the Effective Time, to all its officers, employees, properties,
facilities, books, contracts, commitments and records and, during such period,
each of PN and MC shall (and shall cause each of its Subsidiaries to) furnish
promptly to MC or PN, as the case may be (a) a copy of each report, schedule,
registration statement and other document filed or received by it during such
period pursuant to the requirements of federal securities laws and (b) all other
information concerning its business, properties and personnel as MC or PN, as
the case may be, may reasonably request. Each of MC and PN will hold any such
information which is nonpublic in confidence in accordance with the provisions
of the Confidentiality Agreement between PN and MC, dated on or about May 30,
1997 (the "Confidentiality Agreement"). No investigation pursuant to this
Section 5.7 shall affect any representations or warranties of the parties herein
or the conditions to the obligations of the parties hereto.
 
     Section 5.8  [Reserved.]
 
     Section 5.9  No Solicitation by PN.  In light of the consideration given by
the Board of Directors of PN prior to the execution of this Agreement to, among
other things, the transactions contemplated hereby, and the merits of the
strategic business combination contemplated hereby, and in light of advice
received from the PN Financial Advisor, PN, its affiliates and their respective
officers, directors, employees, representatives and agents shall immediately
cease all existing discussions or negotiations, if any, with any parties (other
than MC) conducted heretofore with respect to any PN Acquisition Proposal. For
purposes of this Agreement, "PN Acquisition Proposal" shall mean any proposal
relating to (i) a possible acquisition of PN, whether by way of merger, purchase
of all or substantially all of the assets of PN, or any similar transaction, or
(ii) a tender offer for more than 5% of the PN Shares.
 
     (b) PN may, directly or indirectly, furnish information and access, in each
case only in response to a request for such information or access, to any person
made after the date hereof which was not encouraged, solicited or initiated by
PN or any of its affiliates or any of their respective officers, directors,
employees, representatives, financial advisors or agents after the date hereof,
pursuant to appropriate confidentiality agreements, and may participate in
discussions and negotiate with such party concerning any PN Acquisition
Proposal, but only if (i) such party has submitted a written proposal to the
Board of Directors of PN relating to any such transaction involving economic
consideration per PN Share that the Board of Directors of PN reasonably believes
is economically superior to the consideration to be paid hereunder and which
does not include or contemplate any condition relating to the obtaining of funds
for such PN Acquisition Proposal and (ii) the Board of Directors of PN has made
a determination in accordance with Section 5.9(f). PN shall notify MC
immediately if any written or oral PN Acquisition Proposal is made, and in any
event no less than two business days prior to responding to such offer, shall
keep MC promptly advised of all written or oral PN Acquisition Proposals, and
shall provide a copy of any written PN Acquisition Proposal and provide in
writing the terms of all oral PN Acquisition Proposals.
 
     (c) Except as set forth in this Section 5.9, neither PN or any of its
affiliates, nor any of their respective officers, directors, employees,
representatives, financial advisors or agents, shall, directly or indirectly,
encourage or solicit submission of any inquiries, proposals or offers by;
participate in or initiate any discussions or negotiations with; disclose any
information about PN or its Subsidiaries to, or otherwise assist, facilitate or
encourage, or enter into any agreement or understanding with any corporation,
partnership, person or other entity or group (other than MC, any affiliate or
associate of MC or any designees of MC) in connection with any PN Acquisition
Proposal; and the Board of Directors of PN shall not recommend that the
stockholders of PN tender their PN Shares in connection with any tender offer
unless the Board of Directors of PN makes a determination in accordance with
Section 5.9(f).
 
     (d) PN agrees not to release any third party from, or waive any provisions
of, any confidentiality or standstill agreement to which PN is a party, unless
the Board of Directors of PN makes a determination in accordance with Section
5.9(f). PN will use all reasonable efforts to have all copies of all nonpublic
information it or PN Financial Advisor has distributed to other potential
purchasers returned to it as soon as possible after the date hereof.
 
     (e) Nothing contained in this Section 5.9 shall prohibit PN or its Board of
Directors from taking and disclosing to PN's stockholders a position with
respect to a tender or exchange offer by a third party pursuant
 
                                       24
<PAGE>   124
 
to Rules 14d-9 and 14e-2 promulgated under the Exchange Act or from making such
disclosure to PN's stockholders or otherwise if the Board of Directors makes a
determination in accordance with Section 5.9(f).
 
     (f) For purposes of this Agreement, a determination of directors made in
accordance with this Section 5.9(f) shall mean that directors constituting a
majority of all directors of PN then in office shall have reasonably determined
in good faith, based upon the advice of PN's outside counsel, that, the taking
of action or the failure to take action (or to withdraw or modify a
recommendation) is required to properly discharge such directors' fiduciary
duties to stockholders of PN under Delaware law.
 
     Section 5.10  Brokers or Finders.  Each of MC and PN represents, as to
itself, its Subsidiaries and its affiliates, that no agent, broker, investment
banker, financial advisor or other firm or person is or will be entitled to any
brokers' or finder's fee or any other commission or similar fee in connection
with any of the transactions contemplated by this Agreement, except the PN
Financial Advisor, whose fees and expenses will be paid by PN in accordance with
its agreement with such firm, the MC Financial Advisor, whose fees and expenses
will be paid by MC in accordance with MC's agreement with such firm, and as
disclosed in Schedule 4.17 of the MC Disclosure Letter. Each of MC and PN agrees
to indemnify and hold the other harmless from and against any and all claims,
liabilities or obligations with respect to any other fees, commissions or
expenses asserted by any person on the basis of any act or statement alleged to
have been made by such party or its affiliates.
 
     Section 5.11  Publicity.  The initial press release with respect to the
execution of this Agreement shall be a joint press release acceptable to MC and
PN. Thereafter, so long as this Agreement is in effect, neither PN, MC nor any
of their respective affiliates shall issue or cause the publication of any press
release or other announcement with respect to the Merger, this Agreement or the
other transactions contemplated hereby without the prior consultation of the
other party, except as may be required by law or by the rules of Nasdaq.
 
     Section 5.12  Notification of Certain Matters.  PN shall give prompt notice
to MC and MC shall give prompt notice to PN of (i) the occurrence or
non-occurrence of any event the occurrence or non-occurrence of which would
cause any representation or warranty contained in this Agreement to be untrue or
inaccurate in any material respect at or prior to the Effective Time and (ii)
any failure of PN or MC, as the case may be, to comply with or satisfy any
covenant, condition or agreement to be complied with or satisfied by it
hereunder in any material respect, provided, however, that the delivery of any
notice pursuant to this Section 5.12 (a) is not required until an executive
officer of PN or MC, as the case may be, has actual knowledge of the
circumstance requiring such notice and (b) shall not limit or otherwise affect
the remedies available hereunder to the party receiving such notice.
 
     Section 5.13  Directors' and Officers' Insurance and Indemnification.
 
          (a) From and after the Effective Time, MC shall, or shall cause the
     Surviving Corporation, to the fullest extent permitted under applicable
     law, PN's Certificate of Incorporation, By-Laws or indemnification
     agreements in effect on the date hereof, including provisions relating to
     advancement of expenses incurred in the defense of any action or suit, to
     indemnify, defend and hold harmless all persons who are now, or have been
     at any time prior to the date hereof, or who become prior to the Effective
     Time, an officer, director, employee or agent of PN or any of its
     Subsidiaries, or who are or were serving at the request of PN or any of its
     Subsidiaries as a director, officer, employee or agent of another
     corporation, partnership, trust, limited liability company or other
     business enterprise (each, an "Indemnified Party"), against all losses,
     claims, damages, liabilities, costs and expenses (including attorney's fees
     and expenses) judgments, fines, losses, and amounts paid in settlement in
     connection with any actual or threatened action, suit, claim, proceeding or
     investigation (each a "Claim") to the extent that any such Claim is based
     on, or arises out of, (i) the fact that such person is or was a director,
     officer, employee or agent of PN or any of its Subsidiaries; or (ii) this
     Agreement, or any of the transactions contemplated hereby or thereby, in
     each case to the extent that any such Claim pertains to any matter or fact
     arising, existing, or occurring prior to or at the Effective Time,
     regardless of whether such Claim is asserted or claimed prior to, at or
     after the Effective Time. Without limiting the foregoing, in the event that
     any Claim is brought against an Indemnified Party (whether arising before
     or after the Effective Time), the Indemnified Party may retain counsel
     satisfactory to it, and MC (or prior to the Effective Time, PN) shall
     advance the fees
 
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<PAGE>   125
 
     and expenses of such counsel for the Indemnified Party in accordance with
     the applicable indemnification provision of the PN Certificate of
     Incorporation, PN Bylaws and any applicable indemnification agreements.
 
          (b) MC and PN agree that the Surviving Corporation's Certificate of
     Incorporation shall contain provisions no less favorable with respect to
     rights to indemnification and limitations on liability than those provided
     in PN's Certificate of Incorporation and By-Laws as in effect as of the
     date hereof, for a period of six (6) years from the Effective Time to the
     extent such rights are consistent with the DGCL; provided, that, in the
     event any claim or claims are asserted or made within such six (6) year
     period, all rights to indemnification in respect of any such claim or
     claims shall continue until disposition of any and all such claims;
     provided further, that any determination required to be made with respect
     to whether an Indemnified Party's conduct complies with the standards set
     forth under applicable law, MC's Certificate of Incorporation or By-Laws or
     such agreements, as the case may be, shall be made by independent legal
     counsel selected by MC and reasonably acceptable to the Indemnified Party
     and; provided further, that nothing in this Section 5.13 shall impair any
     rights or obligations of any present or former directors or officers of PN.
 
          (c) In the event the Surviving Corporation or any of its successors or
     assigns (i) consolidates with or merges into any other person and shall not
     be the continuing or surviving corporation or entity of such consolidation
     or merger, or (ii) transfers or conveys all or substantially all of its
     properties and assets to any person, then, and in each such case, to the
     extent necessary to effectuate the purposes of this Section 5.13, proper
     provision shall be made so that the successors and assigns of the Surviving
     Corporation shall succeed to the obligations set forth in this Section 5.13
     and none of the actions described in clauses (i) or (ii) shall be taken
     until such provision is made.
 
          (d) MC or the Surviving Corporation shall use reasonable best efforts
     to maintain PN's existing officers' and directors' liability insurance
     policy ("D&O Insurance") for a period of not less than six (6) years after
     the Effective Date; provided, (i) that MC may substitute therefor policies
     of substantially similar coverage containing terms no less advantageous to
     such former directors or officers; and (ii) if the existing D&O Insurance
     expires or is canceled during such period, MC or the Surviving Corporation
     will use its reasonable best efforts to obtain substantially similar D&O
     Insurance to the extent available.
 
     Section 5.14  Expenses.  Except as otherwise provided in the penultimate
sentence of Section 5.6(c) and in Section 7.2, whether or not the Merger is
consummated, all costs and expenses incurred in connection with this Agreement
and the transactions contemplated hereby shall be paid by the party incurring
such expense, except that the filing fee for the Proxy Statement or Registration
Statement shall be borne by MC, and all expenses incurred in connection with the
printing and mailing of the Proxy Statement and prospectus included in the
Registration Statement shall be borne one-half by PN and one-half by MC. The
payment of costs and expenses by MC or PN shall not reduce any consideration
paid in the Merger. Notwithstanding the foregoing, the costs and expenses
incurred in connection with the PN Option Agreement and the MC Voting Agreement
will be paid in accordance with the terms of such Agreements.
 
     Section 5.15  Further Assurances.  Each party hereto shall take all such
actions and execute all such documents and instruments that are reasonably
requested by the other party to carry out the intent of the parties under this
Agreement, and in particular, subject to MC's repayment of PN's indebtedness
under that certain Second Amended and Restated Credit Agreement dated as of June
14, 1996, as amended (the "PN Credit Agreement"), PN shall take all such actions
necessary to obtain the release, or assignment to MC's lenders, of all liens in
favor of First National Bank of Chicago and any other required Lenders (as
defined in the PN Credit Agreement) immediately prior to or concurrently with
the Effective Time, including executing and delivering for filing appropriate
UCC-3 statements and other necessary documents for release or assignment of such
liens.
 
                                       26
<PAGE>   126
 
                                   ARTICLE VI
 
                                   CONDITIONS
 
     Section 6.1  Conditions to Each Party's Obligation To Effect the
Merger.  The respective obligation of each party to effect the Merger shall be
subject to the satisfaction on or prior to the Closing Date of each of the
following conditions:
 
          (a) Stockholder Approval.  This Merger Proposal and, in the case of
     MC, the Amendment Proposal, shall have been approved and adopted by the
     requisite vote of the holders of capital stock of MC and PN in accordance
     with the DGCL and the respective Certificates of Incorporation and By-Laws
     of MC and PN;
 
          (b) Statutes; Consents.  No statute, rule, order, decree or regulation
     shall have been enacted or promulgated by any Government Entity preventing
     the consummation of the Merger, and all orders and approvals from
     Governmental Entities required for the consummation of the Merger shall
     have been obtained and shall be in effect at the Effective Time, except
     where the failure to have obtained any such order or approval would not
     have a Material Adverse Effect on the Surviving Corporation and its
     Subsidiaries, taken as a whole, after the Effective Time;
 
          (c) Injunctions.  There shall be no order or injunction of a foreign
     or United States federal or state court or other governmental authority of
     competent jurisdiction in effect precluding, restraining, enjoining or
     prohibiting consummation of the Merger;
 
          (d) Regulatory Approval.  A Final Regulatory Order permitting the
     Merger to be consummated shall have been received from the FCC (or at the
     election of the parties hereto, approval shall have been received from the
     FCC), and Regulatory Orders permitting the Merger to be consummated shall
     have been received from any requisite State Authorities. "Regulatory Order"
     shall mean an action taken or order issued by the FCC or a State Authority
     with respect to the PN Licenses as to which (i) no request for stay by the
     FCC or a State Authority of the action or order is pending, no such stay is
     in effect, and, if any deadline for filing any such request is designated
     by statute or regulation, it has passed; and (ii) with respect to an action
     taken or order issued by the FCC or a State Authority granting consent to
     the Merger, such consent shall be without material adverse conditions,
     other than conditions that have been agreed to by PN and MC or that are
     routine conditions with respect to transfers of this nature. A "Final
     Regulatory Order" shall mean a Regulatory Order as to which (i) no petition
     for rehearing or reconsideration of the action or order is pending before
     the FCC and the time for filing any such petition has passed; and (ii) the
     FCC does not have the action or order under reconsideration on its own
     motion and the time for such reconsideration has passed;
 
          (e) HSR Act.  The expiration or early termination of any waiting
     period under the HSR Act shall have occurred; and
 
          (f) Registration Statement.  The Registration Statement shall have
     been declared effective and no stop order with respect thereto shall be in
     effect at the Effective Time; and
 
     Section 6.2  Conditions to Obligations of PN to Effect the Merger.  The
obligation of PN to effect the Merger shall be subject to the satisfaction on or
prior to the Closing Date of the following additional conditions:
 
          (a) MC shall have performed and complied in all material respects with
     all obligations and agreements required to be performed and complied with
     by it under this Agreement at or prior to the Effective Time;
 
          (b) The representations and warranties of MC contained in this
     Agreement shall have been true and correct in all material respects at the
     time when made, and (except for representations made as of a certain date)
     shall be deemed made again on the Closing Date and shall be true and
     correct in all material respects as of such date, except for changes
     specifically permitted by this Agreement;
 
                                       27
<PAGE>   127
 
          (c) Except for the transactions contemplated by this Agreement, and
     except for matters which affect generally the economy or the industry in
     which MC and its Subsidiaries are engaged, as of the Closing Date, there
     shall not have occurred any change in the business, properties, assets,
     liabilities, financial condition, cash flows, operations, licenses,
     franchises or results of operations of MC or its Subsidiaries that has had
     a Material Adverse Effect on MC and its Subsidiaries, taken as a whole;
 
          (d) PN shall have received a certificate from MC, signed on behalf of
     MC by the Chief Executive Officer and Chief Financial Officer of MC, dated
     the Closing Date, to the effect that the conditions set forth in paragraphs
     (a), (b) and (c) above have been satisfied;
 
          (e) PN shall have received the opinion of Wilmer, Cutler & Pickering,
     dated the Closing Date and in a form reasonably acceptable to PN, to the
     effect that MC Shares to be issued in the Merger have been duly authorized,
     and when issued in accordance with this Agreement will be validly issued
     and fully paid and nonassessable and no holder of any MC Shares outstanding
     as of such date has any preemptive or other rights to subscribe for MC
     Shares pursuant to the DGCL, the Certificate of Incorporation or pursuant
     to agreements of MC set forth on a schedule to such opinion, which MC will
     have certified to such counsel as representing all agreements which contain
     preemptive rights or rights to subscribe for MC Shares;
 
          (f) The MC Shares to be issued in the Merger shall have been admitted
     for quotation on the Nasdaq Stock Market; and
 
          (g) PN shall have received a written opinion from Vinson & Elkins
     L.L.P. (based on certain factual representations received from MC and PN,
     as reasonably requested by such firm) to the effect that the Merger will be
     treated as a tax-free reorganization within the meaning of section 368(a)
     of the Code.
 
     Section 6.3  Conditions to Obligations of MC to Effect the Merger.  The
obligation of MC to effect the Merger shall be subject to the satisfaction on or
prior to the Closing Date of the following additional conditions:
 
          (a) PN shall have performed or complied in all material respects with
     all obligations and agreements required to be performed or complied with by
     it under this Agreement at or prior to the Effective Time;
 
          (b) The representations and warranties of PN contained in this
     Agreement and the PN Option Agreement shall have been true and correct in
     all material respects at the time when made, and (except for
     representations made as of a certain date) shall be deemed made again on
     the Closing Date and shall be true and correct in all material respects as
     of such date, except for changes specifically permitted by this Agreement;
 
          (c) Except for the transactions contemplated by this Agreement and the
     PN Option Agreement, and except for matters which affect generally the
     economy or the industry in which PN and its Subsidiaries are engaged, as of
     the Closing Date, there shall not have occurred any change in business,
     properties, assets, liabilities, financial condition, cash flows,
     operations, licenses, franchises or results of operations of PN or its
     Subsidiaries that has had a Material Adverse Effect on PN and its
     Subsidiaries, taken as a whole;
 
          (d) MC shall have received a certificate from PN, signed on behalf of
     PN by the Chief Executive Officer and Chief Financial Officer of PN, dated
     the Closing Date, to the effect that the conditions set forth in paragraph
     (a), (b) and (c) above have been satisfied;
 
          (e) PN shall have delivered to MC audited consolidated financial
     statements for the fiscal period beginning January 1, 1997 and ended
     September 30, 1997. PN shall have delivered monthly financial statements
     for each calendar month after September 30, 1997, certified as true and
     correct by the Chief Financial Officer of PN and, for months including and
     after November 1997, SAS 71 review procedures with respect to such monthly
     statements shall have been performed by Ernst & Young, and PN shall have
     afforded MC the opportunity to perform such investigations as MC reasonably
     deems necessary to confirm whether PN's calculation of Annualized Cash Flow
     (as defined in Annex B) or Relevant Net
 
                                       28
<PAGE>   128
 
     Liabilities (as defined in Annex B) are correct. PN shall have represented,
     as of the Closing Date, that the foregoing financial statements described
     in the previous sentence were prepared from, and are in accordance with,
     the books and records of PN and its consolidated Subsidiaries, comply in
     all material respects with applicable accounting requirements, shall have
     been prepared in accordance with GAAP applied on a consistent basis
     throughout the periods involved (except as may be indicated in the notes
     thereto), and present fairly the consolidated financial position and the
     consolidated results of operations and cash flows of PN and its
     consolidated Subsidiaries as at the dates thereof or for the periods
     presented therein. In the event of a dispute regarding the correct amount
     of Annualized Cash Flow or Relevant Net Liabilities, the parties shall
     submit the matter to the Washington office of KPMG Peat Marwick which shall
     determine the correct amount within ten (10) business days and whose
     conclusions shall be binding on the parties;
 
          (f) (i) The settlement of the Plaintiffs' Litigation shall not have
     been modified in any material respect, (ii) such settlement shall have been
     approved by final order of all courts having jurisdiction thereof and (iii)
     the time for any appeals of such orders shall have expired, or any appeals
     thereof that have been or may be taken could not reasonably result in a
     Material Adverse Effect to ProNet and its Subsidiaries, taken as a whole.
     Plaintiffs representing no more than 90,000 PN Shares shall have opted out
     of the Plaintiffs' Settlement.
 
          (g) The settlement of the Lehman Brothers, Inc. v. ProNet Inc., No.
     97-602688 (N.Y. Sup. Ct.) shall have been consummated in accordance with
     the terms of the letter dated July 15, 1997 from Fletcher L. Yarbrough to
     Charles W. Schwartz.
 
          (h) Annualized Cash Flow shall be at least 80% of Target Cash Flow (as
     defined in Annex B) for the Measurement Date (as defined in Annex B) prior
     to the Closing Date; and
 
          (i) MC shall have received a written opinion from Wilmer, Cutler &
     Pickering (based on certain factual representations received from MC and
     PN, as reasonably requested by such firm) to the effect that the Merger
     will be treated as a tax-free reorganization within the meaning of section
     368(a) of the Code.
 
                                  ARTICLE VII
 
                                  TERMINATION
 
     Section 7.1.  Termination.  Anything herein or elsewhere to the contrary
notwithstanding, this Agreement may be terminated and the Merger contemplated
herein may be abandoned at any time prior to the Effective Time, whether before
or after stockholder approval thereof:
 
          (a) By the mutual written consent of MC and PN.
 
          (b) By either PN or MC:
 
             (i) If (A) MC shall not have received requisite approval from its
        lenders of the Merger as described in Schedule 4.6 by August 22, 1997;
 
             (ii) any Governmental Entity shall have issued an order, decree or
        ruling or taken any other action (which order, decree or other action in
        the parties hereto shall use their reasonable efforts to lift), in each
        case permanently restraining, enjoining or otherwise prohibiting the
        transactions contemplated by this Agreement and such order, decree,
        ruling or other action shall have become final and non-appealable; or
 
             (iii) If the Merger shall not have occurred by March 31, 1998,
        provided, that notwithstanding the foregoing, the right to terminate
        this Agreement under this Section 7.1(b)(ii) shall not be available to
        any party whose failure to fulfill any obligation under this Agreement
        in any material respect has been the proximate cause of or resulted in
        the failure of the Merger to occur on or before March 31, 1998.
 
                                       29
<PAGE>   129
 
          (c) By PN:
 
             (i) if (A) there has been a breach by MC of any representation or
        warranty contained in this Agreement which would have or would be
        reasonably likely to have a Material Adverse Effect on MC and its
        Subsidiaries, taken as a whole, or (B) MC or any of its subsidiaries
        shall have failed to perform and comply in any material respect with the
        obligations and agreements required to be performed and complied with by
        it under this Agreement or the PN Option Agreement, which failure to
        perform, if curable, shall not have been cured prior to the expiration
        of thirty (30) days following notice of such failure;
 
             (ii) if the Merger Proposal or the Amendment Proposal shall not
        have been approved and adopted by the requisite vote of the holders of
        capital stock of MC in accordance with the DGCL and the Certificate of
        Incorporation and By-Laws of MC at a Meeting held for that purpose
        (including any adjournment thereof); or
 
             (iii) if, (A) pursuant to a determination in accordance with
        Section 5.9(f), the Board of Directors of PN shall have resolved to
        accept a PN Acquisition Proposal, (B) PN pays MC a termination fee equal
        to Four Million Dollars ($4,000,000), and (C) PN shall otherwise be in
        compliance with its obligations under Section 5.9.
 
          (d) By MC:
 
             (i) if (A) there has been a breach by PN of any representation or
        warranty contained in this Agreement which would have or would be
        reasonably likely to have a Material Adverse Effect on PN and its
        Subsidiaries, taken as a whole, or (B) PN or any of its Subsidiaries
        shall have failed to perform and comply in any material respect with the
        obligations and agreements required to be performed and complied with by
        it under this Agreement which failure to perform, if curable, shall not
        have been cured prior to the expiration of thirty (30) days following
        notice of each failure;
 
             (ii) if the Merger Proposal shall not have been approved and
        adopted by the requisite vote of the holders of capital stock of PN in
        accordance with the DGCL and the Certificate of Incorporation and
        By-Laws of PN at a Meeting held for that purpose (including any
        adjournment thereof); or
 
             (iii) if the Board of Directors of PN shall have (A) withdrawn or
        modified or changed, in any manner adverse to MC, its approval or
        recommendation of this Agreement or the Merger or (B) shall have failed
        to recommend against a PN Acquisition Proposal involving a tender offer
        or failed to reject any other PN Acquisition Proposal within ten
        business days after receipt by the Board of Directors of PN of such
        proposal or PN shall have executed an agreement in principle (or similar
        agreement) or definitive agreement relating to an PN Acquisition
        Proposal (or the Board of Directors of PN resolves to do any of the
        foregoing).
 
             (iv) Annualized Cash Flow determined as of any two Measurement
        Dates shall be less than 80% of Target Cash Flow for such Measurement
        Dates.
 
     Section 7.2  Termination Fee.  (a) If this Agreement is terminated by PN
pursuant to Section 7.1(c)(ii), then MC will immediately pay to PN a termination
fee equal to Four Million Dollars $4,000,000 in cash.
 
          (b) If this Agreement is terminated by PN pursuant to Section
     7.1(c)(iii), or by MC pursuant to Section 7.1(d)(ii) or (d)(iii), then PN
     will immediately pay to MC a termination fee equal to Four Million Dollars
     ($4,000,000) in cash.
 
          (c) The agreement contained in Section 7.2 is an integral part of the
     transactions contemplated by this Agreement and constitutes liquidated
     damages in the event of a termination under the Sections specified herein
     and not a penalty.
 
     Section 7.3  Effect of Termination.  In the event of the termination of
this Agreement as provided in Section 7.1, written notice thereof shall
forthwith be given to the other party or parties specifying the provision hereof
pursuant to which such termination is made, and this Agreement (except for the
provisions of
 
                                       30
<PAGE>   130
 
Sections 5.14 and 7.2, which shall survive such termination) shall forthwith
become null and void and, subject to the provisions of Section 7.2, there shall
be no liability on the part of MC or PN except for misrepresentation or material
breach of this Agreement, and nothing herein shall prejudice the ability of the
non-breaching party to seek damages from the other party for any breach of this
Agreement, including without limitation attorneys' fees and the right to pursue
any remedy at law or in equity.
 
                                  ARTICLE VIII
 
                                 MISCELLANEOUS
 
     Section 8.1  Amendment.  This Agreement may be amended by the parties
hereto, by action taken by their respective Boards of Directors, at any time
before or after approval of matters presented in connection with Merger by the
stockholders of MC and PN, but after any such stockholder approval, no amendment
shall be made which by law requires the further approval of stockholders without
obtaining such further approval. This Agreement may not be amended except by an
instrument in writing signed on behalf of each of the parties hereto.
 
     Section 8.2  Nonsurvival of Representations and Warranties.  None of the
representations and warranties in this Agreement or in any schedule, instrument
or other document delivered pursuant to this Agreement shall survive the
Effective Time.
 
     Section 8.3  Notices.  All notices and other communications hereunder shall
be in writing and shall be deemed given upon (x) personal delivery, (y)
electronic confirmation of delivery by telecopy or telegraph, or (z) the next
business day following being sent by an overnight courier service, such as
Federal Express, to the parties at the following addresses (or at such other
address for a party as shall be specified by like notice):
 
          (a) If to MC to:
                 6677 Richmond Highway                            
                 Alexandria, VA 22306                             
                 Attention: Chief Financial Officer               
                 Telecopy No.: (703) 768-9625                     
                                                                  
                 with a copy (which shall not constitute          
                 notice) to:                                      
                                                                  
                 Wilmer, Cutler & Pickering                       
                 2445 M Street, N.W.                              
                 Washington, D.C. 20037                           
                 Attention: George P. Stamas and Thomas W. White  
                 Telecopy No.: (202) 663-6363                     
                                                                  
                 and                                              
 
          (b) if to PN, to:
                 3640 LBJ Freeway                            
                 Dallas, Texas 75240                         
                 Attention: Chief Executive Officer          
                            General Counsel                     
                 Telecopy No.: (972) 774-0651                
                                                             
                 with a copy (which shall not constitute     
                 notice) to:                                 
                                                             
                 Vinson & Elkins, L.L.P.                     
                 Attention: Jeffrey A. Chapman and Mark Early
                 2001 Ross Avenue                            
                 Suite 3700                                  
                 Dallas, Texas 75201                         
                 Telecopy No.: (214) 220-7716                
 
                                       31
<PAGE>   131
 
     Section 8.4  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 8.5  Interpretation.  When a reference is made in this Agreement to
a Section, such reference shall be to a Section of this Agreement unless
otherwise indicated. Whenever the words "include," "includes" or "including" are
used in this Agreement they shall be deemed to be followed by the words "without
limitation." As used in this Agreement, the term "affiliate(s)" shall have the
meaning set forth in Rule 12b-2 of the Exchange Act.
 
     Section 8.6  Counterparts.  This Agreement may be executed in two or more
counterparts, all of which have been considered one and the same agreement and
shall become effective when two or more counterparts have been signed by each of
the parties and delivered to the other party, it being understood that both
parties need not sign the same counterpart.
 
     Section 8.7  Entire Agreement; Third Party Beneficiaries.  This Agreement,
the PN Disclosure Letter, the MC Disclosure Letter, the PN Option Agreement, the
MC Voting Agreement and the Confidentiality Agreement: (a) constitute the entire
agreement and supersede all prior agreements and understandings, both written
and oral, among the parties with respect to the subject matter hereof, and (b)
are not intended to confer upon any person other than the parties hereto any
rights or remedies hereunder, except that Section 2.4 and Section 5.13 shall
confer on the third parties contemplated thereby the benefits thereof.
 
     Section 8.8  Governing Law.  This Agreement shall be governed and construed
in accordance with the laws of the State of Delaware without giving effect to
the principles of conflicts of law thereof.
 
     Section 8.9  Assignment.  Neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties
hereto (whether by operation of law or otherwise) without the prior written
consent of the other parties. Subject to the preceding sentence, this Agreement
will be binding upon, inure to the benefit of and be enforceable by the parties
and their respective successors and assigns.
 
     Section 8.10  Further Assurances.  The parties agree to execute such
further instruments and documents as shall reasonably be necessary to carry out
the transactions contemplated by this Agreement, including, without limitation,
to file any notices, or to obtain any consents appropriate to carry out the
transactions contemplated by this Agreement.
 
                                       32
<PAGE>   132
 
     IN WITNESS WHEREOF, MC and PN have caused this Agreement to be signed by
their respective officers thereunto duly authorized as of the date first written
above.
 
                                          METROCALL, INC.
 
                                          By: /s/  WILLIAM L. COLLINS, III
                                            ------------------------------------
                                            Name: William L. Collins, III
                                            Title: Chief Executive Officer and
                                              President
 
                                          PRONET INC.
 
                                          By:     /s/  JACKIE R. KIMZEY
                                            ------------------------------------
                                            Name: Jackie R. Kimzey
                                            Title: Chairman & CEO
 
                                       33
<PAGE>   133
 
                                    ANNEX A
 
                     Directors Of The Surviving Corporation
 
Term Expiring in 1998
 
Ronald V. Aprahamian
Ryal R. Poppa
Elliott H. Singer
Max D. Hopper
 
Terms Expiring in 1999
 
Harry L. Brock, Jr.
Richard M. Johnston, Chairman of the Board
Ray D. Russenberger
Jackie R. Kimzey
 
Term Expiring in 2000
 
Suzanne S. Brock
William L. Collins, III
Francis A. Martin, III
Edward E. Jungerman
 
Designated by Series A Preferred Stock
 
Michael Greene
Royce Yudkoff
 
                                       34
<PAGE>   134
 
                                    ANNEX B
 
                          CONVERSION RATIO ADJUSTMENTS
 
     The Conversion Ratio represents a basic conversion ratio of .90 MC Shares
for each PN Share. Based on 13,673,765 PN Shares outstanding or issuable
pursuant to existing agreements (other than employee stock options), the Merger
Consideration would consist of 12,306,388 MC Shares. The Conversion Ratio is
subject to adjustment if certain liabilities of PN exceed certain targets, if
operating cash flow (earnings before interest, taxes, depreciation and
amortization) is less or more than certain targets, and if new pager inventory
falls below certain targets. The Conversion Ratio shall be determined in
accordance with the following formulas which adjust the number of MC Shares
representing the Merger Consideration and therefore the Conversion Ratio:
 
<TABLE>
<S>                                                <C>
Conversion Ratio = Adjusted MC Merger Shares       / 13,673,765
                   Adjusted MC Merger Shares       = 12,306,388
                                                   - Liability Adjustment
                                                   - Negative Cash Flow Adjustment
                                                       (If greater than zero)
                                                   + Positive Cash Flow Adjustment
                                                       (If greater than zero)
                                                   - New Pager Inventory Adjustment
                   Liability Adjustment            = (Relevant Net Liabilities - Target Net
                                                     Liabilities)
                                                       (If greater than zero)
                                                       / $4.875
                   Negative Cash Flow Adjustment   = ([.9 X Target Cash Flow] - Annualized Cash
                                                       Flow)
                                                       (If greater than zero)
                                                       X 8.00
                                                       / $4.875
                   Positive Cash Flow Adjustment   = (Annualized Cash Flow - [1.1 X Target Cash
                                                       Flow])
                                                       (If greater than zero)
                                                       X 8.00
                                                       / $4.875
                   New Pager Inventory Adjustment  = (New Pager Inventory Shortfall X $50.00)
                                                       / $4.875
</TABLE>
 
The conversion ratio as adjusted shall be expressed to the fourth decimal place.
 
Definitions:
 
     For purposes of this Annex C, the following terms shall have the meanings
set forth below. Capitalized terms not otherwise defined will have the meanings
given such terms in the Merger Agreement.
 
                                       35
<PAGE>   135
 
     "Annualized Cash Flow" shall mean for the period beginning July 1, 1997,
and ending on a Measurement Date: (i) the sum of (A) "Consolidated Cash Flow" of
PN, as such term is defined in the Indenture (including the other defined terms
incorporated therein) plus, in each case to the extent included, (1) costs
associated with employee terminations not to exceed $239,000 (to the extent
included in expenses in calculating Annualized Cash Flow); (2) verified costs of
deconstructing PN's nationwide network, not to exceed $2,500 per site, and (3)
if approved by MC, expenditures generating a future benefit for the Surviving
Corporation, (ii) divided by the number of months in such period and (iii)
multiplied by 12.
 
     "Measurement Date" shall mean the last day of each calendar month prior to
the Closing.
 
     "Target Cash Flow" shall mean for each Measurement Date, the amount
specified below:
 
<TABLE>
<CAPTION>
                                                 TARGET ANNUALIZED
                     MONTHS IN ANNUALIZATION         CASH FLOW
MEASUREMENT DATE          OF CASH FLOW              (MILLIONS)
- ----------------     -----------------------     -----------------
<S>                  <C>                         <C>
     9/30/97                    3                     $31.200
    10/31/97                    4                     $31.350
    11/30/97                    5                     $31.488
    12/31/97                    6                     $31.600
     1/31/98                    7                     $31.714
     2/28/98                    8                     $31.830
</TABLE>
 
     "Relevant Net Liabilities" means at a Measurement Date, the sum of (i) all
"Debt" of PN, as such term is defined in the Indenture (including the other
defined terms incorporated therein and excluding the "Deferred Settlement
Costs"), plus (ii) the amount, if greater than zero, by which consolidated
current liabilities of PN exceed consolidated current assets of PN; or minus
(iii) the amount, if greater than zero, by which consolidated current assets of
PN exceeds consolidated current liabilities of PN; provided, however, if PN
achieves at least 100% of its Target Cash Flow for a Measurement Date and upon
the consent of MC, which shall not be unreasonably withheld, the consolidated
current liabilities of PN shall not include the accounts payable by PN incurred
in connection with PN's agreement with the State of Texas.
 
     "Deferred Settlement Costs" means the accounting accrual of the value of
the 1 million PN Shares to be issued in conjunction with the Plaintiffs'
Settlement.
 
     "Target Net Liabilities" means for any Measurement Date, the amounts set
forth below:
 
<TABLE>
<CAPTION>
                     TARGET NET LIABILITIES
MEASUREMENT DATE           (MILLIONS)
- ----------------     ----------------------
<S>                  <C>
    10/31/97                 $183.2
    11/30/97                 $184.2
    12/31/97                 $185.2
     1/31/98                 $185.2
     2/28/98                 $185.2
</TABLE>
 
     "New Pager Inventory Shortfall" means, at a Measurement Date, if PN has
less than 50,000 new pagers in inventory (45,000 of which must be Motorola
pagers), the greater of (i) the number of all new pagers in inventory below
50,000 or (ii) the number of Motorola pagers below 45,000.
 
                                       36
<PAGE>   136
 
                                                                       EXHIBIT B
MORGAN STANLEY
 
                                                  MORGAN STANLEY & CO.
                                                  INCORPORATED
                                                  1585 BROADWAY
                                                  NEW YORK, NEW YORK 10036
                                                  (212) 761-4000
 
                                          August 8, 1997
 
Board of Directors
Metrocall, Inc.
6677 Richmond Highway
Alexandria, VA 22306
 
Members of the Board:
 
     We understand that Metrocall, Inc. ("Metrocall" or the "Buyer") and ProNet,
Inc. ("ProNet" or the "Company"), have entered into an Agreement and Plan of
Merger, dated August 8, 1997 (the "Merger Agreement"), which provides, among
other things, for the merger (the "Merger") of ProNet with and into Metrocall,
with Metrocall as the surviving corporation in the Merger. Pursuant to the
Merger, the separate existence of ProNet will cease and each issued and
outstanding share of Common Stock, par value $0.01 per share, of ProNet (the
"ProNet Common Stock"), other than shares of ProNet held in treasury or held by
Metrocall or any subsidiary of Metrocall or ProNet will be converted in the
right to receive 0.9 shares (the "Exchange Ratio") of Common Stock, par value
$0.01 per share, of Metrocall (the "Metrocall Common Stock"), subject to
adjustment in certain circumstances pursuant to the terms of the Merger
Agreement. The terms and conditions of the Merger are more fully set forth in
the Merger Agreement.
 
     You have asked for our opinion as to whether, as of the date hereof, the
Exchange Ratio pursuant to the Merger Agreement is fair from a financial point
of view to Metrocall.
 
     In connection with our opinion set forth herein, we have:
 
          (i) reviewed certain publicly available financial statements and other
     information of Metrocall and ProNet respectively;
 
          (ii) reviewed certain internal financial statements and other
     financial and operating data concerning Metrocall and ProNet prepared by
     the managements of Metrocall and ProNet, respectively;
 
          (iii) analyzed certain financial projections concerning Metrocall and
     ProNet prepared by the managements of Metrocall and ProNet, respectively;
 
          (iv) discussed the past and current operations and financial condition
     and the prospects of Metrocall and ProNet with the managements of Metrocall
     and ProNet, respectively;
 
          (v) discussed with Metrocall and ProNet managements their views
     regarding the estimates of the business, financial and operational benefits
     arising from the Merger;
 
          (vi) analyzed the pro forma impact of the Merger on Metrocall's
     consolidated capitalization and financial ratios;
 
          (vii) reviewed the reported prices and trading activity of Metrocall
     Common Stock and ProNet Common Stock;
 
          (viii) compared the financial performance of Metrocall and ProNet and
     the prices and trading activity of the Metrocall Common Stock and ProNet
     Common Stock with that of certain other comparable publicly-traded
     companies and their securities;
 
                                        1
<PAGE>   137
 
          (ix) reviewed the financial terms, to the extent publicly available,
     of certain comparable acquisition transactions;
 
          (x) participated in discussions and negotiations among representatives
     of ProNet and Metrocall and their financial and legal advisors;
 
          (xi) reviewed the Merger Agreement and certain related documents;
 
          (xii) participated in discussions with Metrocall's accountants
     regarding certain aspects of the accounting practices and policies of
     ProNet; and
 
          (xiii) considered such other factors and performed such other analyses
     as we have deemed appropriate.
 
     We have assumed and relied upon without independent verification the
accuracy and completeness of the information reviewed by us for purposes of this
opinion. With respect to the financial projections, including estimates of the
business, financial and operational benefits expected to result from the Merger,
we have assumed that they have been reasonably prepared on bases reflecting the
best currently available estimates and judgments of the future competitive and
operating environments and related financial performance of Metrocall and
ProNet, respectively. We have not assumed responsibility for conducting a
physical inspection of the properties or facilities of Metrocall or ProNet or
for making or obtaining an independent valuation or appraisal of the assets or
liabilities of Metrocall or ProNet, nor have we been furnished with such
valuations or appraisals. We note that the Merger is intended to qualify as a
reorganization within the meaning of Section 368(a) of the Internal Revenue Code
of 1986, as amended, and we have assumed with your consent that the Merger will
so qualify. We have assumed that the transactions described in the Merger
Agreement will be consummated on the terms set forth therein, without waiver of
any of the conditions thereof. Our opinion is necessarily based on economic,
market and other conditions as in effect on, and the information made available
to us as of, the date hereof.
 
     We have acted as financial advisor to the Board of Directors of Metrocall
in connection with this transaction and will receive a fee for our services. In
the past, Morgan Stanley & Co. Incorporated and its affiliates have provided
financial advisory and financing services for Metrocall and have received fees
for the rendering of these services.
 
     It is understood that this letter is for the information of the Board of
Directors of Metrocall and, except for inclusion of this letter in its entirety
in any filing with the Securities and Exchange Commission in connection with the
Merger, may not be used or quoted for any other purpose without our prior
written consent. In addition, we express no opinion or recommendation to any
shareholder as to how such shareholder should vote at the shareholders' meeting
to be held in connection with the Merger.
 
     Based upon and subject to the foregoing, we are of the opinion, on the date
hereof, the Exchange Ratio pursuant to the Merger Agreement is fair from a
financial point of view to Metrocall.
 
                                          Very truly yours,
 
                                          MORGAN STANLEY & CO. INCORPORATED
 
                                          By:      /s/ PAUL J. TAUBMAN
                                            ------------------------------------
                                            Paul J. Taubman
                                            Managing Director
 
                                        2
<PAGE>   138
 
                                                                       EXHIBIT C
                                               ------------------------------
                                                             SALOMON BROTHERS
                                                     ---------------------------
SALOMON BROTHERS INC
Seven World Trade Center
New York, New York 10048
212-783-7000
 
                                                                  August 5, 1997
 
Board of Directors
ProNet Inc.
6340 LBJ Freeway
Dallas, Texas 75240
 
Members of the Board:
 
     You have requested our opinion as investment bankers as to the fairness,
from a financial point of view, to the holders of shares of common stock, $.01
par value per share (the "Company Common Stock"), of ProNet Inc. (the "Company")
of the consideration to be received by such shareholders in the proposed merger
(the "Merger") of the Company with Metrocall, Inc. ("Metrocall") pursuant to an
Agreement and Plan of Merger (the "Agreement") to be entered into between
Metrocall and the Company.
 
     As more specifically set forth in the Agreement, in the Merger each issued
and outstanding share of the Company Common Stock will be converted into the
right to receive 0.9 of one share of common stock, $.01 par value per share, of
Metrocall ("Metrocall Common Stock"), subject to certain adjustments.
 
     As you are aware, Salomon Brothers Inc has acted as financial advisor to
the Company in connection with the Merger and will receive a fee for services, a
substantial portion of which is contingent upon consummation of the Merger.
Salomon Brothers Inc has previously served as an underwriter in connection with
equity offerings by each of the Company and Metrocall, for which we received
customary compensation. In addition, in the ordinary course of our business, we
actively trade the debt securities of the Company for our own account and for
the accounts of customers and, accordingly, may at any time hold a long or short
position in such securities.
 
     In connection with rendering our opinion, we have reviewed and analyzed,
among other things, the following: (i) a draft version of the Agreement,
including the Exhibits and Schedules thereto; (ii) certain publicly available
information concerning the Company, including the Annual Reports on Form 10-K of
the Company for each of the years in the five year period ended December 31,
1996 and the Quarterly Report on Form 10-Q of the Company for the quarter ended
March 31, 1997; (iii) certain other internal information, primarily financial in
nature, including projections, concerning the business and operations of the
Company furnished to us by the Company for purposes of our analysis; (iv)
certain publicly available information concerning the trading of, and the
trading market for, the Company Common Stock; (v) certain publicly available
information concerning Metrocall, including the Annual Reports on Form 10-K of
Metrocall for each of the years in the five year period ended December 31, 1996
and the Quarterly Report on Form 10-Q of Metrocall for the quarter ended March
31, 1997; (vi) certain other internal information, primarily financial in
nature, including projections, concerning the business and operations of
Metrocall furnished to us by Metrocall for purposes of our analysis; (vii)
certain publicly available information concerning the trading of, and the
trading market for, the Metrocall Common Stock; (viii) certain publicly
available information with respect to certain other companies that we believe to
be comparable to the Company or Metrocall and the trading markets for certain of
such other companies' securities; and (ix) certain publicly available
information concerning the nature and terms of certain other transactions that
we consider relevant to our inquiry. We have also considered such other
information, financial studies, analysis, investigations and financial, economic
and market criteria that we deemed relevant. We have also met with certain
officers and employees of the Company and Metrocall to discuss the foregoing as
well as other matters we believe relevant to our inquiry.
 
                                        1
<PAGE>   139
 
                                            ---------------------------------
   SALOMON BROTHERS INC                                      SALOMON BROTHERS
                                                  ------------------------------
 
     In our review and analysis and in arriving at our opinion, we have assumed
and relied upon the accuracy and completeness of all of the financial and other
information provided us or publicly available and have neither attempted
independently to verify nor assumed responsibility for verifying any of such
information. We have not conducted a physical inspection of any of the
properties or facilities of the Company or Metrocall, nor have we made or
obtained or assumed any responsibility for making or obtaining any independent
evaluations or appraisals of any of such properties or facilities. With respect
to projections, we have assumed that they have been reasonably prepared on bases
reflecting the best currently available estimates and judgments of the
managements of the Company and Metrocall as to the respective future financial
performance of the Company and Metrocall and we express no view with respect to
such projections or the assumptions on which they were based. We further have
assumed that each of the Agreement and the other agreements which are attached
as Exhibits to the Agreement, when executed and delivered, will not differ
materially from the drafts which we have reviewed.
 
     In conducting our analysis and arriving at our opinion as expressed herein,
we have considered such financial and other factors as we have deemed
appropriate under the circumstances including, among others, the following: (i)
the historical and current financial position and results of operations of the
Company and Metrocall; (ii) the business prospects of the Company and Metrocall;
(iii) the historical and current market for the Company Common Stock, the
Metrocall Common Stock and the equity securities of certain other companies that
we believe to be comparable to the Company or Metrocall; and (iv) the nature and
terms of certain other acquisition transactions that we believe to be relevant.
We have also taken into account our assessment of general economic, market and
financial conditions and our knowledge of the telecommunications industry as
well as our experience in connection with similar transactions and securities
valuation generally. Our opinion necessarily is based upon conditions as they
exist and can be evaluated on the date hereof and we assume no responsibility to
update or revise opinion based upon circumstances or events occurring after the
date hereof. Our opinion as expressed below does not constitute an opinion or
imply any conclusions as to the likely trading range for the Metrocall Common
Stock following consummation of the Merger. Our opinion is, in any event,
limited to the fairness, from a financial point of view, of the consideration to
be received by the holders of the Company Common Stock in the Merger and does
not address the Company's underlying business decision to effect the Merger or
constitute a recommendation to any holder of Company Common Stock as to how such
holder should vote with respect to the Merger.
 
     Based upon and subject to the foregoing, we are of the opinion as
investment bankers that the consideration to be received by the holders of the
Company Common Stock in the Merger is fair, from a financial point of view, to
such holders.
 
                                          Very truly yours,
                                          SALOMON BROTHERS INC
 
                                          By:  /s/ SALOMON BROTHERS INC
                                             -----------------------------------
 
                                         2
<PAGE>   140
 
                                                                       EXHIBIT D
 
                             PROPOSED AMENDMENT TO
                                METROCALL, INC.
                              AMENDED AND RESTATED
                          CERTIFICATE OF INCORPORATION
 
     The proposed amendment to Article 4.1 of Metrocall's Amended and Restated
Certificate of Incorporation is as follows (the proposed additions are
underlined and in bold type and the proposed deletions are in brackets and
italicized type):
 
     4.1 AUTHORIZED SHARES.
 
          The total number of shares of all classes of stock that the
     Corporation shall have the authority to issue is 81,000,000 [61,000,000]
     shares, of which 1,000,000 shares shall be Preferred Stock, having a par
     value of $0.01 per share (the "Preferred Stock") and 80,000,000
     [60,000,000] shall be classified as shares of Common Stock par value $0.01
     per share ("Common Stock"). The Board of Directors is expressly authorized
     to provide for the classification and reclassification of any unissued
     shares of Preferred Stock or Common Stock and the issuance thereof in one
     or more classes or series without the approval of the stockholders of the
     Corporation.
 
                                        1
<PAGE>   141
 
                                                                       EXHIBIT E
 
                           PROPOSED AMENDMENT TO THE
                                METROCALL, INC.
                             1996 STOCK OPTION PLAN
 
     The proposed amendment to Section 3 of the Metrocall, Inc. 1996 Stock
Option Plan is as follows (the proposed additions are underlined and in bold
type and the proposed deletions are in brackets and italicized type):
 
          The stock that may be issued pursuant to Options shall be shares of
     common stock of the Corporation (the "Stock"), which shares may be treasury
     shares or authorized but unissued shares. The number of shares of Stock
     that may be issued under the Plan shall not exceed in the aggregate
     4,000,000 [2,000,000] shares of Stock, which number of shares is subject to
     adjustment as provided in Section 12. If any Option expires, terminates or
     is terminated for any reason prior to exercise in full, the shares of Stock
     that were subject to the unexercised portion of such Option shall be
     available immediately for future grants of Options under the Plan.
 
                                        1
<PAGE>   142
 
                                                                       EXHIBIT F
 
                           PROPOSED AMENDMENT TO THE
                                METROCALL, INC.
                          EMPLOYEE STOCK PURCHASE PLAN
 
     The proposed amendment to Section 1 of the Metrocall, Inc. Employee Stock
Purchase Plan is as follows (the proposed additions are underlined and in bold
type and the proposed deletions are in brackets and italicized type):
 
          Subject to adjustment as provided in Section 26 below, the aggregate
     number of shares of Common Stock that may be made available for purchase by
     participating employees under the Plan is 1,000,000 [300,000]. The shares
     issuable under the Plan may, in the discretion of the Board of Directors of
     the Company (the "Board"), be either authorized but unissued shares or
     treasury shares.
 
                                        1
<PAGE>   143
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                       ------
<S>                                                                                    <C>
METROCALL, INC. AND SUBSIDIARIES:
Report of Independent Public Accountants..............................................    F-2
Consolidated Balance Sheet at December 31, 1995 and 1996..............................    F-3
Consolidated Statements of Operations for the years ended December 31, 1994, 1995 and
  1996................................................................................    F-4
Consolidated Statement of Stockholders' Equity for the years ended December 31, 1994,
  1995 and 1996.......................................................................    F-5
Consolidated Statements of Cash Flows for the years ended December 31, 1994, 1995 and
  1996................................................................................    F-6
Notes to Consolidated Financial Statements............................................    F-7
Management's Discussion and Analysis of Financial Condition and Results of
  Operations..........................................................................   F-28
Condensed Consolidated Balance Sheets, December 31, 1996 and June 30, 1997............   F-42
Condensed Consolidated Statements of Operations for the three months ended June 30,
  1996 and 1997.......................................................................   F-43
Condensed Consolidated Statements of Operations for the six months ended June 30, 1996
  and 1997............................................................................   F-44
Condensed Consolidated Statement of Stockholders' Equity for the six months ended June
  30, 1997............................................................................   F-45
Condensed Consolidated Statements of Cash Flows for the six months ended June 30, 1996
  and 1997............................................................................   F-46
Notes to Condensed Consolidated Financial Statements..................................   F-47
Management's Discussion and Analysis of Financial Condition and Results of
  Operations..........................................................................   F-53
PRONET INC. AND SUBSIDIARIES:
Report of Independent Auditors........................................................   F-65
Consolidated Balance Sheets at December 31, 1996 and 1995.............................   F-66
Consolidated Statements of Operations for the years ended December 31, 1996, 1995 and
  1994................................................................................   F-67
Consolidated Statements of Cash Flows for the years ended December 31, 1996, 1995 and
  1994................................................................................   F-68
Consolidated Statements of Stockholders' Equity for the years ended December 31, 1996,
  1995 and 1994.......................................................................   F-69
Notes to Consolidated Financial Statements............................................   F-70
Management's Discussion and Analysis of Financial Condition and Results of
  Operations..........................................................................   F-86
Consolidated Balance Sheets at June 30, 1997 and December 31, 1996....................   F-94
Consolidated Statements of Operations for the three and six months ended June 30, 1997
  and 1996............................................................................   F-95
Consolidated Statements of Cash Flows for the six months ended June 30, 1997 and
  1996................................................................................   F-96
Notes to Consolidated Financial Statements............................................   F-97
Management's Discussion and Analysis of Financial Condition and Results of
  Operations..........................................................................  F-101
</TABLE>
 
                                       F-1
<PAGE>   144
 
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To Metrocall, Inc.:
 
     We have audited the accompanying consolidated balance sheets of Metrocall,
Inc., and subsidiaries as of December 31, 1995 and 1996, and the related
consolidated statements of operations, stockholders' equity and cash flows for
each of the three years in the period ended December 31, 1996. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audits.
 
     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform an audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
     In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Metrocall, Inc., and
subsidiaries as of December 31, 1995 and 1996, and the results of their
operations and their cash flows for each of the three years in the period ended
December 31, 1996, in conformity with generally accepted accounting principles.
 
                                          ARTHUR ANDERSEN LLP
 
Washington D.C.
February 13, 1997
 
                                       F-2
<PAGE>   145
 
                        METROCALL, INC. AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
             (IN THOUSANDS, EXCEPT SHARE AND PER SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                                                               DECEMBER 31,
                                                                           --------------------
                                                                             1995        1996
                                                                           --------    --------
<S>                                                                        <C>         <C>
ASSETS
CURRENT ASSETS:
  Cash and cash equivalents.............................................   $123,574    $ 10,917
  Accounts receivable, less allowance for doubtful accounts of $968 and
     $2,961 as of December 31, 1995 and 1996, respectively..............      9,785      25,796
  Prepaid expenses and other current assets.............................      1,908       5,681
                                                                           --------    --------
          Total current assets..........................................    135,267      42,394
                                                                           --------    --------
PROPERTY AND EQUIPMENT:
  Land, buildings and leasehold improvements............................      9,900      12,694
  Furniture, office equipment and vehicles..............................     12,794      29,742
  Paging and plant equipment............................................    103,427     188,236
  Less -- Accumulated depreciation and amortization.....................    (50,175)    (77,260)
                                                                           --------    --------
                                                                             75,946     153,412
                                                                           --------    --------
INTANGIBLE ASSETS, net of accumulated amortization of approximately
  $8,875 and $20,926 as of December 31, 1995 and 1996, respectively.....    129,085     452,639
OTHER ASSETS............................................................        316       3,023
                                                                           --------    --------
TOTAL ASSETS............................................................   $340,614    $651,468
                                                                           ========    ========
 
LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Current maturities of long-term debt..................................   $    252    $    700
  Accounts payable......................................................      9,390      17,194
  Accrued expenses and other current liabilities........................      7,666      18,940
  Deferred revenues and subscriber deposits.............................      1,950      12,827
                                                                           --------    --------
          Total current liabilities.....................................     19,258      49,661
CAPITAL LEASE OBLIGATIONS, less current maturities (Note 6).............      2,849       3,244
CREDIT FACILITY AND OTHER LONG-TERM DEBT, less current maturities (Note
  6)....................................................................        954     171,314
SENIOR SUBORDINATED NOTES, due 2005 and 2007 (Note 6)...................    150,000     152,534
DEFERRED INCOME TAX LIABILITY...........................................     11,814      76,687
MINORITY INTEREST IN PARTNERSHIP........................................        501         499
                                                                           --------    --------
          Total liabilities.............................................    185,376     453,939
                                                                           --------    --------
SERIES A CONVERTIBLE PREFERRED STOCK, 14% cumulative; par value $.01 per
  share; 810,000 shares authorized; zero and 159,600 shares issued and
  outstanding as of December 31, 1995 and 1996, respectively and a
  liquidation preference of $40,598 at December 31, 1996 (Note 8).......         --      31,231
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY (Note 8):
  Common stock, par value $.01 per share; 33,500,000 shares authorized;
     14,626,255 and 24,521,135 shares issued and outstanding as of
     December 31, 1995 and 1996, respectively...........................        146         245
  Additional paid-in capital............................................    201,956     262,827
  Accumulated deficit...................................................    (46,864)    (96,774)
                                                                           --------    --------
                                                                            155,238     166,298
                                                                           --------    --------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY..............................   $340,614    $651,468
                                                                           ========    ========
</TABLE>
 
   The accompanying notes are an integral part of these consolidated balance
                                    sheets.
 
                                       F-3
<PAGE>   146
 
                        METROCALL, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
             (IN THOUSANDS, EXCEPT SHARE AND PER SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED DECEMBER 31,
                                                          ----------------------------------------
                                                             1994          1995           1996
                                                          ----------    -----------    -----------
<S>                                                       <C>           <C>            <C>
REVENUES:
  Service, rent and maintenance........................   $   49,716    $    92,160    $   124,029
  Product sales........................................        8,139         18,699         25,928
                                                          ----------    -----------    -----------
          Total revenues...............................       57,855        110,859        149,957
  Net book value of products sold......................       (6,962)       (15,527)       (21,633)
                                                          ----------    -----------    -----------
                                                              50,893         95,332        128,324
OPERATING EXPENSES:
  Service, rent and maintenance........................       14,014         27,258         38,347
  Selling and marketing................................        7,412         15,656         24,228
  General and administrative...........................       13,315         24,647         32,998
  Depreciation and amortization........................       13,829         31,504         58,196
  Management reorganization charge (Note 5)............           --          2,050             --
                                                          ----------    -----------    -----------
                                                              48,570        101,115        153,769
                                                          ----------    -----------    -----------
          Income (loss) from operations................        2,323         (5,783)       (25,445)
INTEREST AND OTHER INCOME (EXPENSE)(Note 6)............          161            314           (607)
INTEREST EXPENSE.......................................       (3,726)       (12,533)       (20,424)
                                                          ----------    -----------    -----------
LOSS BEFORE INCOME TAX BENEFIT AND EXTRAORDINARY
  ITEM.................................................       (1,242)       (18,002)       (46,476)
INCOME TAX BENEFIT.....................................          152            595          1,021
                                                          ----------    -----------    -----------
LOSS BEFORE EXTRAORDINARY ITEM.........................       (1,090)       (17,407)       (45,455)
EXTRAORDINARY ITEM: Write-off of unamortized debt
  financing costs in 1994 and 1995, and costs of debt
  refinancing in 1996, net of income tax benefit of
  $36, $0 and $0, respectively (Note 6)................       (1,309)        (2,695)        (3,675)
                                                          ----------    -----------    -----------
          Net loss.....................................       (2,399)       (20,102)       (49,130)
                                                          ----------    -----------    -----------
PREFERRED DIVIDENDS (Notes 6 and 8)....................           --             --           (780)
                                                          ----------    -----------    -----------
  Loss attributable to common stockholders.............   $   (2,399)   $   (20,102)   $   (49,910)
                                                          ==========    ===========    ===========
LOSS PER SHARE ATTRIBUTABLE TO COMMON STOCKHOLDERS:
Loss per share before extraordinary item attributable
  to common stockholders...............................   $    (0.14)   $     (1.49)   $     (2.84)
Extraordinary item, net of income tax benefit..........        (0.16)         (0.23)         (0.23)
                                                          ----------    -----------    -----------
Loss per share attributable to common stockholders.....   $    (0.30)   $     (1.72)   $     (3.07)
                                                          ----------    -----------    -----------
Weighted-average common shares outstanding.............    8,127,679     11,668,140     16,252,782
                                                          ==========    ===========    ===========
</TABLE>
 
  The accompanying notes are an integral part of these consolidated financial
                                  statements.
 
                                       F-4
<PAGE>   147
 
                        METROCALL, INC. AND SUBSIDIARIES
 
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                     ADDITIONAL
                                              PREFERRED    COMMON     PAID-IN      ACCUMULATED
                                                STOCK      STOCK      CAPITAL        DEFICIT       TOTAL
                                              ---------    ------    ----------    -----------    --------
<S>                                           <C>          <C>       <C>           <C>            <C>
BALANCE, December 31, 1993.................     $  --       $ 71      $  38,021     $ (24,363)    $ 13,729
  Shares issued in acquisition of FirstPAGE
     (Note 3)..............................        --         29         45,161            --       45,190
  Shares issued in acquisition of
     MetroPaging (Note 3)..................        --          6         11,610            --       11,616
  Net loss.................................        --         --             --        (2,399)      (2,399)
                                                 ----       ----       --------      --------     --------
BALANCE, December 31, 1994.................        --        106         94,792       (26,762)      68,136
  MetroPaging acquisition purchase price
     adjustment (Note 3)...................        --         --           (105)           --         (105)
  Exercise of stock options................        --         --             46            --           46
  Net proceeds from public offering (Note
     8)....................................        --         40        106,938            --      106,978
  Compensation on amendment of stock
     options in management reorganization
     (Note 5)..............................        --         --            285            --          285
  Net loss.................................        --         --             --       (20,102)     (20,102)
                                                 ----       ----       --------      --------     --------
BALANCE, December 31, 1995.................        --        146        201,956       (46,864)     155,238
  Issuance of shares in employee stock
     purchase plan (Note 8)................        --         --            110            --          110
  Shares issued in Satellite acquisition
     (Note 3)..............................        --         18         10,408            --       10,426
  Exercise of stock options (Note 8).......        --         --              5            --            5
  Shares issued in merger with A+ Network
     (Note 3)..............................        --         81         42,477            --       42,558
  Warrants issued in connection with Series
     A Convertible Preferred Stock (Note
     8)....................................        --         --          7,871            --        7,871
  Preferred dividends (Note 8).............        --         --             --          (780)        (780)
  Net loss.................................        --         --             --       (49,130)     (49,130)
                                                 ----       ----       --------      --------     --------
BALANCE, December 31, 1996.................     $  --       $245      $ 262,827     $ (96,774)    $166,298
                                                 ====       ====       ========      ========     ========
</TABLE>
 
  The accompanying notes are an integral part of these consolidated financial
                                  statements.
 
                                       F-5
<PAGE>   148
 
                        METROCALL, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                    YEAR ENDED DECEMBER 31,
                                                               ----------------------------------
                                                                 1994        1995         1996
                                                               --------    ---------    ---------
<S>                                                            <C>         <C>          <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net loss..................................................   $ (2,399)   $ (20,102)   $ (49,130)
  Adjustments to reconcile net loss to net cash provided by
     operating activities --
     Depreciation and amortization..........................     13,829       31,504       58,196
     Compensation on amendment of stock options in
       management reorganization............................         --          285           --
     Amortization of debt financing costs...................        296          595          620
     Decrease in deferred income taxes......................       (200)        (686)      (1,483)
     Write-off of deferred acquisition costs................         --           --          388
     Minority interest in loss of investments...............         --           --          207
     Writedown of equity investment.........................         --           --          238
     Interest expense in excess of lease payment............         27           --           --
     Loss (gain) on sale of equipment.......................         19            3       (1,188)
     Extraordinary item.....................................      1,309        2,695        3,675
  Cash provided by (used in) changes in current assets and
     liabilities, net of effects from acquisitions:
     Accounts receivable....................................     (1,721)      (3,554)      (2,626)
     Prepaid expenses and other current assets..............       (236)      (1,070)      (1,579)
     Accounts payable.......................................        652        2,050        5,841
     Deferred revenues and subscriber deposits..............         91       (1,458)       2,126
     Other current liabilities..............................        129        3,738          323
                                                               --------     --------   ----------
          Net cash provided by operating activities.........     11,796       14,000       15,608
                                                               --------     --------   ----------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Cash paid for acquisitions, net of cash acquired..........        497           --     (260,600)
  Purchases of property and equipment, net..................    (19,091)     (44,058)     (62,110)
  Additions to intangibles..................................       (641)      (1,895)      (3,853)
  Equity investments........................................         --           --         (685)
  Cash escrow for Source One Wireless, Inc. (Note 9)........         --           --       (1,000)
  Proceeds from sale of equipment...........................         --        1,166        1,301
  Other assets..............................................          8          259         (957)
                                                               --------     --------   ----------
          Net cash used in investing activities.............    (19,227)     (44,528)    (327,904)
                                                               --------     --------   ----------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Net proceeds from issuance of common stock................         --      107,024          115
  Net proceeds from preferred stock offering (Note 8).......         --           --       38,323
  Proceeds from long-term debt..............................     24,781      163,000      194,904
  Principal payments on long-term debt......................    (12,788)    (113,790)     (25,464)
  Debt tender and consent solicitation costs................         --           --       (3,675)
  Deferred debt financing costs.............................     (2,879)      (4,984)      (4,562)
  Increase (decrease) in minority interest in partnership...         76           79           (2)
                                                               --------     --------   ----------
          Net cash provided by financing activities.........      9,190      151,329      199,639
                                                               --------     --------   ----------
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS........      1,759      120,801     (112,657)
CASH AND CASH EQUIVALENTS, beginning of period..............      1,014        2,773      123,574
                                                               --------     --------   ----------
CASH AND CASH EQUIVALENTS, end of period....................   $  2,773    $ 123,574    $  10,917
                                                               ========     ========    =========
</TABLE>
 
  The accompanying notes are an integral part of these consolidated financial
                                  statements.
 
                                       F-6
<PAGE>   149
 
                        METROCALL, INC. AND SUBSIDIARIES
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
1.  ORGANIZATION AND RISK FACTORS
 
     Metrocall, Inc. and subsidiaries (the "Company" or "Metrocall"), is a
leading provider of local, regional and nationwide paging and other wireless
messaging services. The Company's selling efforts are concentrated in 32 markets
in five operating regions: (i) the Northeast (Massachusetts through Delaware),
(ii) the Mid-Atlantic (Maryland and the Washington, D.C. metropolitan area),
(iii) the Southeast (including Virginia, the Carolinas, Georgia, Florida,
Alabama, Louisiana, Mississippi and Tennessee), (iv) the Southwest (primarily
Texas) and (v) the West (primarily California, Nevada and Arizona). Through its
Nationwide Network, the Company provides coverage to over 1,000 cities
representing the top 100 Standard Metropolitan Statistical Areas.
 
     On July 16, 1996, the Company acquired Parkway Paging, Inc. of Plano, Texas
("Parkway"). On August 30, 1996, the Company acquired substantially all the
assets of Satellite Paging of Fairfield, New Jersey and Message Network of Boca
Raton, Florida (together, "Satellite"). On November 15, 1996, the Company
acquired A+ Network, Inc. of Pensacola, Florida ("A+ Network"). The Company
acquired the operations of A+ Network through a merger of A+ Network with and
into Metrocall. On August 31, and November 29, 1994, Metrocall acquired
FirstPAGE USA, Inc. ("FirstPAGE") and MetroPaging Inc. ("MetroPaging," formerly
AllCity Paging, Inc.), respectively. The consolidated statements of operations
include the results of acquired companies since their respective acquisition
dates.
 
  Risks and Other Important Factors
 
     The Company sustained net losses of $2.4 million, $20.1 million, and $49.1
million for the years ended December 31, 1994, 1995 and 1996, respectively. The
Company's loss from operations for the year ended December 31, 1996 was $25.4
million. In addition, at December 31, 1996, the Company has an accumulated
deficit of $96.8 million and a deficit in working capital of $7.3 million. The
Company's losses from operations and its net losses are expected to continue for
additional periods in the future. There can be no assurance that the Company's
operations will become profitable.
 
     The Company's operations require the availability of substantial funds to
finance the maintenance and growth of its existing paging operations and
customer base, development and construction of future wireless communications
networks, expansion into new markets, and the acquisition of other wireless
communication companies. At December 31, 1996, the Company had incurred
approximately $328 million in long-term debt and capital leases. Amounts
available under the Company's credit facility are subject to certain financial
covenants and other restrictions such that as of January 1, 1997, approximately
$46.5 million of additional borrowings were available to the Company under its
credit facility. The Company's ability to borrow additional amounts in the
future is dependent on its ability to comply with the provisions of its credit
facility. On January 14, 1997, the Company increased borrowings outstanding
under its credit facility by $10.0 million.
 
     The Company is also subject to certain additional risks and uncertainties
including changes in technology, business integration, competition and
regulation (see also Notes 2 and 14).
 
2.  SIGNIFICANT ACCOUNTING POLICIES
 
  Principles of Consolidation
 
     In addition to Metrocall, the accompanying consolidated financial
statements include the accounts of Metrocall's 61% interest in Beacon Peak
Associates Ltd. ("Beacon Peak"), Metrocall's 20% interest in Beacon
Communications Associates ("Beacon Communications"), and Metrocall of Virginia,
Inc. and Metrocall, USA, Inc., nonoperating wholly owned subsidiaries that hold
certain of the Company's regulatory licenses issued by the Federal
Communications Commission (the "FCC").
 
                                       F-7
<PAGE>   150
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
2.  SIGNIFICANT ACCOUNTING POLICIES -- (CONTINUED)
     Beacon Communications owns the building that is the Company's headquarters.
Since Beacon Communications' debt related to the building is guaranteed by the
Company's lease (expiring 2008) and because the Company has made the only
substantive investment in Beacon Communications, the accounts of Beacon
Communications have been consolidated in the accompanying financial statements.
In 2008, the Company and Beacon Communications could agree upon alternate
arrangements that could result in an accounting treatment other than
consolidation. Beacon Peak owns land, adjacent to the Beacon Communications
building, which is valued at cost.
 
     The minority interest in Beacon Peak is $501,000 and $499,000 as of
December 31, 1995 and 1996, respectively. Beacon Communications has a
partnership deficit as of both December 31, 1995 and 1996, respectively, and
accordingly, the minority interest is not recognized in the accompanying
consolidated financial statements.
 
     All significant intercompany transactions have been eliminated in
consolidation.
 
  Use of Estimates in the Preparation of Financial Statements
 
     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
  Revenue Recognition
 
     The Company recognizes revenue under service, rental and maintenance
agreements with customers as the related services are performed. The Company
leases (as lessor) radio pagers under operating leases. Substantially all the
leases are on a month-to-month basis. Advance billings for services are deferred
and recognized as revenue when earned. Sales of equipment are recognized upon
delivery.
 
  Cash and Cash Equivalents
 
     Cash and cash equivalents include short-term, highly liquid investments
purchased with original maturities of three months or less.
 
  Property and Equipment
 
     Property and equipment are carried at cost. Depreciation is computed using
the straight-line method over the following estimated useful lives.
 
<TABLE>
<CAPTION>
                                                                               YEARS
                                                                               -----
        <S>                                                                    <C>
        Buildings and leasehold improvements................................   10-31
        Furniture and office equipment......................................   5-10
        Vehicles............................................................    3-5
        Subscriber paging equipment.........................................    3-5
        Transmission and plant equipment....................................   5-12
</TABLE>
 
     The net book value of lost pagers is charged to depreciation expense.
 
     New pagers are depreciated using the half-year convention upon acquisition.
Betterments to acquired pagers are charged to depreciation expense.
 
                                       F-8
<PAGE>   151
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
2.  SIGNIFICANT ACCOUNTING POLICIES -- (CONTINUED)
     Purchases of property and equipment in the accompanying consolidated
statements of cash flows are reflected net of the net book value of products
sold to approximate the net addition to subscriber equipment.
 
     The Company currently purchases a significant amount of its subscriber
paging equipment from one supplier. Although there are other manufacturers of
similar subscriber paging equipment, the inability of this supplier to provide
equipment required by the Company could result in a decrease of pager placements
and decline in sales, which could adversely affect operating results.
 
  Intangible Assets
 
     Intangible assets, net of accumulated amortization, consist of the
following (dollars in thousands):
 
<TABLE>
<CAPTION>
                                                            DECEMBER 31,        AMORTIZATION
                                                        --------------------     PERIOD IN
                                                          1995        1996         YEARS
                                                        --------    --------    ------------
        <S>                                             <C>         <C>         <C>
        State certificates and FCC licenses..........   $ 65,095    $217,914      5-40
        Goodwill.....................................     43,754     180,454      15-25
        Customer lists...............................     13,886      40,945       2-6
        Debt financing costs.........................      4,937       8,890      8-12
        Other........................................      1,413       4,436       3-7
                                                        --------    --------
                                                        $129,085    $452,639
                                                        ========    ========
</TABLE>
 
     Debt financing costs represent fees and other costs incurred in connection
with the issuance of long-term debt. These costs are amortized to interest
expense over the term of the related debt using the effective interest rate
method.
 
  Long-Lived Assets
 
     Long-lived assets and identifiable intangibles to be held and used are
reviewed for impairment whenever events or changes in circumstances indicate
that the carrying amount should be addressed. Impairment is measured by
comparing the book value to the estimated undiscounted future cash flows
expected to result from use of the assets and their eventual disposition. At
December 31, 1996, the market value of the Company's Common Stock was $5.016 per
share and the net book value was $6.78 per share. However, the Company has
determined that there has been no permanent impairment in the carrying value of
long-lived assets reflected in the accompanying balance sheet.
 
     Effective July 1, 1996, the Company changed the estimated useful lives of
certain intangibles acquired in 1994, including goodwill and regulatory licenses
issued by the FCC recorded in the acquisitions of FirstPAGE USA, Inc., and
MetroPaging, Inc., from 40 years to 15 years for goodwill and from 40 years to
25 years for FCC licenses. The impact of these changes was to increase
amortization expense for the year ended December 31, 1996, by approximately $1.3
million.
 
  Loss Per Common Share Attributable to Common Stockholders
 
     Loss per common share attributable to common stockholders for the years
ended December 31, 1994, 1995 and 1996, is based upon the weighted-average
number of common equivalent shares outstanding during the period. The effect of
outstanding options and warrants on net loss per share for the years ended
December 31, 1994, 1995, and 1996, is not included because such options and
warrants would be antidilutive (see Note 8).
 
                                       F-9
<PAGE>   152
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
2.  SIGNIFICANT ACCOUNTING POLICIES -- (CONTINUED)
  Reclassifications
 
     Certain amounts in the prior years' consolidated financial statements have
been reclassified to conform with the current year's presentation.
 
3.  ACQUISITIONS
 
  1994 Acquisitions
 
     On August 31, 1994, the Company acquired 100% of the outstanding common
stock of FirstPAGE by means of a merger of FPGE Acquisition Corp., Inc.,
formerly a wholly owned subsidiary of Metrocall formed to effect the FirstPAGE
merger, with and into FirstPAGE, leaving FirstPAGE a wholly owned subsidiary of
the Company. The acquisition was financed through the issuance of 2,869,190
shares of the Company's Common Stock and options to purchase 47,387 shares of
the Company's Common Stock and an assumption of substantially all liabilities of
FirstPAGE.
 
     On November 29, 1994, the Company acquired 100% of the outstanding common
stock of MetroPaging by means of a merger of ACPI Acquisition Corporation,
formerly a wholly owned subsidiary of Metrocall formed to effect the MetroPaging
merger, with and into MetroPaging, leaving MetroPaging a wholly owned subsidiary
of the Company. The acquisition was financed through the issuance of 630,645
shares of the Company's Common Stock and an assumption of substantially all
liabilities of MetroPaging.
 
     In May 1995, the total number of shares of Metrocall Common Stock issued to
MetroPaging stockholders was adjusted, reducing the total purchase price by
approximately $105,000. This adjustment reduced goodwill recorded as a result of
the acquisition.
 
  Parkway Paging, Inc.
 
     On July 16, 1996, the Company acquired all the outstanding common stock of
Parkway for cash and the assumption of certain long-term obligations together
totaling approximately $28.0 million. The acquisition was financed through
drawings on the Company's credit facility.
 
  Satellite Paging and Message Network
 
     On August 30, 1996, the Company acquired substantially all the assets of
Satellite for cash, the assumption of certain liabilities and the issuance of
shares of the Company's Common Stock. The total number of shares to be issued
under the terms of the agreement has not been finalized and will fluctuate based
on the Company's stock price and final capital expenditures and working capital
amounts. As of December 31, 1996, the Company had issued 1,771,869 shares of
Metrocall Common Stock. The cash paid in the acquisition was financed through
drawings on the Company's credit facility.
 
  A+ Network, Inc.
 
     On November 15, 1996, the Company completed its merger with A+ Network of
Pensacola, Florida pursuant to an Agreement and Plan of Merger dated May 16,
1996. The total purchase price was approximately $286.4 million, consisting of
approximately 8.1 million shares of the Company's Common Stock valued at
approximately $42.6 million ($5.25 per share), 8.1 million indexed Variable
Common Rights ("VCRs"), approximately $91.8 million paid in a cash tender offer
completed in July 1996, indebtedness refinanced under the Company's existing
credit facility of approximately $122.5 million, and other assumed indebtedness,
estimated future liabilities and transaction fees, but excluding deferred income
tax liabilities of approximately $57.4 million recorded in the merger.
 
                                      F-10
<PAGE>   153
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
3.  ACQUISITIONS -- (CONTINUED)
     Prior to November 15, 1996, the Company acquired approximately 40% of the
A+ Network common stock outstanding in a cash tender offer completed in July
1996. For financial reporting purposes, the Company accounted for its investment
in A+ Network under the equity method. As such, the Company recorded its share
of A+ Network's net loss of approximately $4.1 million through November 15,
1996, which has been classified as Other Expense in the accompanying statement
of operations for the year ended December 31, 1996.
 
     In addition, the Company repurchased approximately 40% of all options
outstanding to acquire A+ Network common stock for $13.98 per share or
approximately $4.0 million including related payroll taxes. The remaining A+
Network options, with an exercise price of $6.04 per common share, were assumed
by the Company and exchanged for Metrocall options (see Note 8).
 
     Cash payments made in the merger were financed through the Company's credit
facility.
 
     All of the Company's acquisitions have been accounted for as purchases for
financial reporting purposes. The purchase prices for the 1994 acquisitions and
the 1996 acquisitions of Parkway, Satellite and A+ Network transactions have
been allocated as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                   1994
                                               ACQUISITIONS    PARKWAY    SATELLITE    A+ NETWORK
                                               ------------    -------    ---------    ----------
        <S>                                    <C>             <C>        <C>          <C>
        Plant and equipment.................     $ 22,872      $ 1,606     $  1,425     $ 55,790
        Accounts receivable and other
          assets............................        6,441          931        1,170       21,040
        Noncompete agreements...............           --            1           --        2,503
        Customer lists......................       17,785        2,795        2,920       25,646
        FCC licenses and state
          certificates......................       66,699       19,536       20,506      115,913
        Goodwill............................       44,384       13,618        3,514      122,893
        Liabilities assumed.................      (84,986)        (680)        (932)     (23,192)
        Direct acquisition costs............       (3,800)      (1,468)        (628)      (8,318)
        Deferred income tax liability.......      (12,700)      (8,932)          --      (57,424)
                                               ------------    -------    ---------    ----------
                                                 $ 56,695      $27,407     $ 27,975     $254,851
                                                =========      =======      =======    =========
</TABLE>
 
     The purchase price allocations for 1996 acquisitions may be subject to
adjustment for changes in estimates related to costs to be incurred to close
duplicate facilities and to settle pending legal contingencies. The resolution
of these matters is not expected to have a material impact on the Company's
financial condition or its results of future operations.
 
     The unaudited pro forma information presented below reflects the
acquisitions of Parkway, Satellite and A+ Network as if each had occurred on
January 1, 1995. The results are not necessarily indicative of future
 
                                      F-11
<PAGE>   154
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
3.  ACQUISITIONS -- (CONTINUED)
operating results or of what would have occurred had the acquisitions actually
been consummated on that date (in thousands, except per share data).
 
<TABLE>
<CAPTION>
                                                                        YEAR ENDED
                                                                       DECEMBER 31,
                                                                   --------------------
                                                                     1995        1996
                                                                   --------    --------
        <S>                                                        <C>         <C>
        Revenues................................................   $218,741    $247,886
        Loss attributable to common stockholders before
          extraordinary item....................................    (66,289)    (77,530)
        Loss attributable to common stockholders................    (65,360)    (81,205)
        Loss per share attributable to common stockholders
          before extraordinary item.............................      (3.00)      (3.09)
        Loss per common share attributable to common
          stockholders..........................................      (2.96)      (3.23)
</TABLE>
 
4.  PREPAID EXPENSES AND OTHER CURRENT ASSETS
 
     The amounts included in prepaid expenses and other current assets at
December 31, 1995 and 1996 are as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                       DECEMBER 31,
                                                                     -----------------
                                                                      1995       1996
                                                                     ------     ------
        <S>                                                          <C>        <C>
        Prepaid advertising........................................  $  398     $1,490
        Refunds due................................................      --      1,129
        Prepaid taxes..............................................      --        969
        Prepaid insurance..........................................     108        243
        Prepaid rents..............................................      29        118
        Interest receivable........................................     493         18
        Other......................................................     880      1,714
                                                                     ------     ------
                                                                     $1,908     $5,681
                                                                     ======     ======
</TABLE>
 
5.  OTHER CURRENT LIABILITIES
 
     The amounts included in other current liabilities are as follows (in
thousands):
 
<TABLE>
<CAPTION>
                                                                        DECEMBER 31,
                                                                      -----------------
                                                                       1995      1996
                                                                      ------    -------
        <S>                                                           <C>       <C>
        Accrued severance, payroll and payroll taxes...............   $2,763    $ 8,684
        Accrued interest payable...................................    3,893      4,522
        Accrued state and local taxes..............................      220      1,616
        Accrued insurance claims...................................      300      1,224
        Accrued legal and litigation costs.........................       --      1,200
        Other......................................................      490      1,694
                                                                      ------    -------
                                                                      $7,666    $18,940
                                                                      ======    =======
</TABLE>
 
  Management Reorganization
 
     In January 1996, the Company completed a management reorganization. Under
the reorganization, the Company's Chairman of the Board was replaced and the
Company's Chief Executive Officer resigned. Severance and other separation costs
for the former Chairman and former Chief Executive Officer were
 
                                      F-12
<PAGE>   155
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
5.  OTHER CURRENT LIABILITIES -- (CONTINUED)
accrued and recorded as a management reorganization charge in the accompanying
consolidated financial statements as of and for the year ended December 31,
1995. Additionally, certain nonsales employees were terminated and related
severance costs were included in the management reorganization charge. Severance
costs included approximately $285,000 of compensation expense recognized upon
amending option agreements with certain former employees and the Company's
former Chief Executive Officer to increase vesting and exercise periods. As of
December 31, 1996, the balance of accrued but unpaid severance costs included in
the accompanying balance sheet was approximately $544,000.
 
6.  LONG-TERM LIABILITIES
 
  Long-Term Debt
 
     Long-term debt consists of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                       DECEMBER 31,
                                                                   --------------------
                                                                     1995        1996
                                                                   --------    --------
        <S>                                                        <C>         <C>
        Senior Subordinated Notes, bearing interest at 10 3/8%,
          Notes due in 2007.....................................   $150,000    $150,000
        Senior Subordinated Notes, bearing interest at 11 7/8%,
          Notes due in 2005.....................................         --       2,534
        Credit agreement, interest at a floating rate, defined
          below, with principal payments beginning March 2000...         --     169,904
        Industrial development revenue note, interest at 70% of
          prime rate plus 1/2% (6.5% and 6.3%, respectively),
          principal of $6 plus interest, payable monthly to
          December 2008, secured by the Company's headquarters
          building..............................................      1,026         914
        Promissory note payable, bearing interest at 7.5%,
          principal and interest payable monthly to June 2005,
          secured by letter of credit...........................         --         623
                                                                   --------    --------
                                                                    151,026     323,975
        Less -- Current portion.................................         72         127
                                                                   --------    --------
        Long-term portion.......................................   $150,954    $323,848
                                                                   ========    ========
</TABLE>
 
  Senior Subordinated Notes
 
     10 3/8% SENIOR SUBORDINATED NOTES
 
     On October 2, 1995, the Company completed a public offering of $150.0
million Senior Subordinated Notes (the "Notes"), due 2007, bearing interest at
10.375% per annum, payable semiannually on April 1 and October 1, commencing
April 1, 1996. The Notes are general unsecured obligations subordinated in right
to the Company's existing long-term debt and other senior obligations, as
defined. After underwriting discounts, commissions and other professional fees,
net proceeds from the Notes were approximately $145.0 million.
 
     The Company incurred total loan origination fees and other direct financing
costs of approximately $5.0 million, which will be recognized as interest
expense over the term of the Notes. Debt financing costs are included in
intangible assets in the accompanying consolidated balance sheets as of December
31, 1995 and 1996.
 
                                      F-13
<PAGE>   156
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
6.  LONG-TERM LIABILITIES -- (CONTINUED)
     The Notes contain various covenants that, among other restrictions, limit
the ability of the Company to incur additional indebtedness, pay dividends,
engage in certain transactions with affiliates, sell assets and engage in
mergers and consolidations except under certain circumstances.
 
     The Notes may be redeemed at the Company's option after October 1, 2000.
The following redemption prices are applicable to any optional redemption of the
Notes by the Company during the 12-month period beginning on October 1 of the
years indicated below:
 
<TABLE>
<CAPTION>
                                      YEARS                                 PERCENTAGE
        -----------------------------------------------------------------   ----------
        <S>                                                                 <C>
        2000.............................................................     105.188%
        2001.............................................................     103.458%
        2002.............................................................     101.729%
        2003 and thereafter..............................................     100.000%
</TABLE>
 
     In the event of a change in control of the Company, as defined, each holder
of the Notes will have the right, at such holder's option, to require the
Company to purchase that holder's Notes at a purchase price equal to 101% of the
principal amount thereof, plus any accrued and unpaid interest to the date of
purchase.
 
     11 7/8% SENIOR SUBORDINATED NOTES
 
     In connection with the merger with A+ Network, the Company offered to
purchase all $125.0 million of A+ Network's 11 7/8% Senior Subordinated Notes
due 2005 (the "A+ Notes") for $1,005 per $1,000 principal amount plus accrued
and unpaid interest (the "Offer"). Concurrent with the Offer, the Company
solicited consents to amend the indenture governing the A+ Notes to eliminate
substantially all restrictive covenants and certain related events of default
contained therein in exchange for a payment of $5.00 for each $1,000 principal
amount of the A+ Notes. Of the total outstanding, approximately $122.5 million
were validly tendered and retired. Tendered notes were financed under the
Company's credit facility. Additionally, sufficient consents were received so
that substantially all restrictive covenants and related events of default were
eliminated. The principal balance of the notes untendered, $2.5 million, has
been assumed by the Company. Interest on the notes is payable semi-annually in
May and November. The Company incurred fees of approximately $3.7 million in
connection with the tender and consent process which has been recorded as an
extraordinary item for the year ended December 31, 1996.
 
     The A+ Notes may be redeemed at the Company's option after November 1,
2000. The following redemption prices are applicable to any optional redemption
of the Notes by the Company during the 12-month period beginning on November 1
of the years indicated below:
 
<TABLE>
<CAPTION>
                                      YEARS                                  PERCENTAGE
        ------------------------------------------------------------------   ----------
        <S>                                                                  <C>
        2000..............................................................     104.5%
        2001..............................................................     103.0%
        2002..............................................................     101.5%
        2003 and thereafter...............................................     100.0%
</TABLE>
 
  Capital Lease Obligations
 
     In April 1994, the Company entered into a lease agreement (the "Lease
Agreement") for additional office space. The Lease Agreement required initial
minimum monthly rents of $37,500. In January 1997, the Company acquired
additional office space under the Lease Agreement. Initial monthly payments will
increase to approximately $68,000 beginning January 1997. The Lease Agreement
will continue to be treated as a capital lease for financial reporting purposes.
The Lease Agreement continues for an initial period of ten years
 
                                      F-14
<PAGE>   157
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
6.  LONG-TERM LIABILITIES -- (CONTINUED)
and may be renewed for two additional five-year periods. In connection with the
Lease Agreement, the Company entered into an Option and Purchase Agreement (the
"Purchase Agreement"), which gives the Company an option to acquire a 51%
interest in the property housing the office space, discussed above. The Company
may exercise the option from January 2, 1995, through December 31, 1997. At the
time the option is exercised, the Company, along with the owners of the
remaining 49% interest in the property, will contribute the property to a
limited partnership for which the Company will serve as general partner and
receive a 51% equity interest. When, if ever, the Company exercises the purchase
option to the Purchase Agreement, the purchase price will be approximately $2.9
million.
 
     On July 1, 1996, the Company entered into a lease agreement for certain
computer equipment. The lease agreement requires quarterly rental payments of
approximately $115,000 for a period of three years. This lease agreement has
been accounted for as a capital lease for financial reporting purposes.
 
     Aggregate maturities of long-term debt and capital lease obligations as of
December 31, 1996, are as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                 LONG-TERM    CAPITAL LEASE
                                                                   DEBT        OBLIGATIONS
                                                                 ---------    -------------
        <S>                                                      <C>          <C>
        1997..................................................   $    127        $   573
        1998..................................................        131            645
        1999..................................................        136            503
        2000..................................................        141            336
        2001..................................................        146            387
        Thereafter............................................    323,294          1,373
                                                                 ---------    -------------
                                                                 $323,975        $ 3,817
                                                                 ========     ==========
</TABLE>
 
  New Credit Facility
 
     On September 20, 1996, the Company entered into an agreement to amend and
restate the loan agreement governing the Company's existing credit facility.
Subject to certain conditions set forth in the new agreement, the Company may
borrow up to $350,000,000 under two loan facilities. The first facility
("Facility A") is a $225,000,000 reducing revolving credit facility and the
second ("Facility B") is a $125,000,000 reducing credit facility (together
Facility A and Facility B are referred to as the "New Credit Facility"). The New
Credit Facility has a term of eight years and is secured by substantially all
the assets of the Company. Required quarterly principal repayments begin on
March 31, 2000 and continue through December 31, 2004. At December 31, 1996, a
total of $169,904,000 was outstanding under the New Credit Facility. On January
14, 1997, the Company increased its borrowings outstanding under the New Credit
Facility by $10,000,000.
 
     The New Credit Facility contains various covenants that, among other
restrictions, require the Company to maintain certain financial ratios,
including total debt to annualized operating cash flow (not to exceed 6.0 to 1.0
from January 1, 1997 to December 31, 1997, and declining thereafter), senior
debt to annualized operating cash flow, annualized operating cash flow to pro
forma debt service, total sources of cash to total uses of cash, and operating
cash flow to interest expense (in each case, as such terms are defined in the
agreement relating to the New Credit Facility). The New Credit Facility also
requires the Company to raise additional equity (approximately $10,000,000) if
its ratio of cash flow to interest expense is less than 2.0 to 1.0 for the
quarter ended June 30, 1997. The covenants also limit additional indebtedness
and future mergers and acquisitions (other than the pending transaction
discussed in Note 14) without the approval of the lenders and restrict the
payment of cash dividends and other stockholders distributions by Metrocall
during the term of the
 
                                      F-15
<PAGE>   158
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
6.  LONG-TERM LIABILITIES -- (CONTINUED)
agreement. The New Credit Facility also prohibits certain changes in ownership
control of Metrocall, as defined.
 
     Under the New Credit Facility, the Company may designate all or any portion
of the borrowings outstanding as either a floating base rate advance or a
Eurodollar rate advance with an applicable margin that ranges from 0.0% to
1.750% for base rate advances and 0.875% to 2.750% for Eurodollar rate advances.
The predefined margins will be based upon the level of indebtedness outstanding
relative to annualized cash flow, as defined in the agreement relating to the
New Credit Facility. Commitment fees of 0.25% to 0.375% per year (depending on
the level of Metrocall's indebtedness outstanding to annualized cash flow) will
be charged on the average unused balance and will be charged to interest expense
as incurred. Pursuant to the terms of the New Credit Facility, Metrocall must
obtain and maintain interest rate protection on at least 50% of Metrocall's
outstanding debt; all fixed rate debt, including the 10 3/8% Senior Subordinated
Notes due 2007, will count against this requirement. At December 31, 1996, the
obligation to obtain interest rate protection had not commenced and accordingly
the Company had not entered into any interest rate protection agreements.
 
     The Company incurred loan origination fees and direct financing costs in
connection with the New Credit Facility of approximately $4.5 million which will
be amortized and charged to interest expense over the term of the New Credit
Facility.
 
     The weighted-average balances outstanding under all credit facilities
outstanding for the years ended December 31, 1994, 1995 and 1996, were
approximately $35,818,000, $108,222,000 and $39,902,000, respectively. The
highest outstanding borrowings under these facilities for the years ended
December 31, 1994, 1995 and 1996, were approximately $100,320,000, $113,320,000
and $169,904,000, respectively. For the years ended December 31, 1994, 1995 and
1996, interest expense relating to these facilities was approximately
$3,458,000, $7,630,000 and $3,737,000, respectively, at weighted-average
interest rates of 9.7%, 7.0% and 9.4%, respectively. The effective interest
rates as of December 31, 1995 and 1996 were 8.5% and 8.0%, respectively.
 
  Former Credit Facility
 
     On August 31, 1994, the Company entered into a secured credit agreement
(the "Agreement," as amended) with a group of lenders (the "Lenders") for $175.0
million, consisting of a seven-year $100.0 million reducing revolver and a
seven-year $75.0 million revolving credit and term loan (collectively, the
"Facility"). Borrowings under the Facility were used to refinance existing
indebtedness (under its former credit agreement, discussed below) and finance
the acquisitions of FirstPAGE and MetroPaging (see Note 3), as well as capital
expenditures and general corporate requirements. On September 20, 1996, the
Company amended and restated the Agreement with an agreement for the New Credit
Facility discussed above.
 
     Upon completion of the Notes offering, discussed above, the Company repaid
all amounts outstanding under the Facility and terminated the interest rate swap
agreements. Accordingly, upon repayment, the Company recorded an extraordinary
charge to write-off then existing unamortized debt financing costs of $2.7
million in the year ended December 31, 1995. The Company also incurred breakage
fees of approximately $1.7 million associated with the termination of the
interest rate swap agreements which have been recorded as interest and other
income (expense) in the 1995 consolidated statement of operations.
 
  Prior Credit Facility
 
     In November 1993, the Company entered into a revolving credit agreement
("Credit Facility") with a group of banks. The Credit Facility provided for an
$85.0 million secured seven-year revolving credit facility.
 
                                      F-16
<PAGE>   159
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
6.  LONG-TERM LIABILITIES -- (CONTINUED)
Borrowings under the Credit Facility were used to refinance balances outstanding
under a previous credit agreement. On August 31, 1994, the balances outstanding
under the Credit Facility ($12.5 million) were refinanced with the Facility
discussed above.
 
     The Company incurred loan origination fees and direct financing costs in
connection with the revolving credit agreement. In connection with the repayment
of indebtedness outstanding under its then existing credit facility, the Company
recognized an extraordinary charge to write-off existing unamortized debt
financing costs, net of income tax benefit of $36,000, of approximately $1.3
million in 1994.
 
  Promissory Note Payable
 
     The Company assumed indebtedness in the A+ Network merger of approximately
$627,000. The promissory note is payable as consideration for an acquisition
completed by A+ Network in May 1996. The promissory note bears interest at 7.5%
with monthly principal and interest payments of $8,333 through June 2005.
 
7.  FAIR VALUE OF FINANCIAL INSTRUMENTS
 
     The estimated fair values of the Company's financial instruments are as
follows (in thousands).
 
<TABLE>
<CAPTION>
                                                DECEMBER 31, 1995       DECEMBER 31, 1996
                                               --------------------    --------------------
                                               CARRYING      FAIR      CARRYING      FAIR
                                                AMOUNT      VALUE       AMOUNT      VALUE
                                               --------    --------    --------    --------
        <S>                                    <C>         <C>         <C>         <C>
        10 3/8% Senior Subordinated Notes
          due 2007..........................   $150,000    $159,773    $150,000    $127,500
        11 7/8% Senior Subordinated Notes
          due 2005..........................         --          --       2,534       2,331
        Industrial development revenue
          note..............................      1,026       1,093         914         780
        Promissory note payable.............         --          --         623         565
</TABLE>
 
     The carrying amounts reported in the Company's consolidated balance sheet
for cash and cash equivalents, accounts receivable, accounts payable and accrued
liabilities approximate fair values due to the short maturity of those
instruments. The fair value of the senior subordinated notes is based on market
quotes as of the dates indicated. The fair value of the industrial development
revenue note and the promissory note payable is based on the Company's
incremental borrowing rate.
 
8.  STOCK AND STOCK RIGHTS
 
     The authorized capital stock of Metrocall consists of 33,500,000 shares of
common stock, par value $0.01 per share ("Metrocall Common Stock" or "Common
Stock") and 1,000,000 shares of preferred stock, par value $0.01 per share
("Preferred Stock"), of which 810,000 shares have been designated as Series A
Convertible Preferred Stock ("Series A Preferred Stock"), 9,000 shares will be
designated Series B Convertible Preferred Stock ("Series B Preferred Stock") and
4,000 shares will be designated as Common Stock Equivalent Preferred Stock ("CSE
Preferred Stock").
 
  Common Stock
 
     On September 27, 1995, the Company completed a secondary public offering of
4.0 million shares of the Company's Common Stock (the "Secondary Offering"), at
$28.25 per share. After underwriting discounts, commissions and other
professional fees, net proceeds from the Secondary Offering were approximately
$107.0 million.
 
                                      F-17
<PAGE>   160
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
8.  STOCK AND STOCK RIGHTS -- (CONTINUED)
     At the Company's annual meeting of the Company's stockholders in May 1996,
the Company's stockholders approved an increase in the authorized number of
shares of Common Stock from 20,000,000 to 26,000,000. Additionally, at a special
meeting of the Company's stockholders in November 1996, the stockholders
increased the authorized number of shares of Common Stock from 26,000,000 to
33,500,000. The Company intends to seek approval from its stockholders at its
annual meeting in May 1997 to increase the number of authorized shares of Common
Stock to 60,000,000.
 
     Because the Company holds licenses from the FCC, no more than 20 percent of
the Company's Common Stock may, in the aggregate, be owned directly or
indirectly, or voted by a foreign government, a foreign corporation, or resident
of a foreign country. The Company's amended and restated certificate of
incorporation permits the redemption of the Company's Common Stock from
stockholders, where necessary, to protect the Company's regulatory licenses.
Such stock may be redeemed at fair market value or if the stock was purchased
within one year of such redemption, at the lesser of fair market value or such
holder's purchase price.
 
  Series A Preferred Stock
 
     The Board of Directors has designated 810,000 shares of Preferred Stock as
Series A Preferred Stock. On November 15, 1996, the Company issued 159,600
shares of Series A Preferred Stock, together with the warrants discussed below,
for $250 per share or $39.9 million. The Company incurred fees of approximately
$1.6 million. Net proceeds from the Series A Preferred Stock ($38.3 million)
were used to reduce outstanding bank indebtedness ($25 million) and to fund
existing working capital requirements ($13.3 million). Each share of Series A
Preferred Stock has a stated value of $250 per share and has a liquidation
preference over shares of the Company's Common Stock equal to the stated value.
The Series A Preferred Stock carries a dividend of 14% of the stated value per
year, payable semiannually in cash or in additional shares of Series A Preferred
Stock, at the Company's option. Upon the occurrence of a triggering event, as
defined in the certificate of designation for Series A Preferred Stock, and so
long as the triggering event continues, the dividend rate increases to 16% per
year. Triggering events include, among other things, (i) the failure of the
stockholders of Metrocall to approve an increase in the number of authorized
shares of Common Stock to at least 50,000,000 on or prior to June 1, 1997, (ii)
the Company issues or incurs indebtedness or equity securities senior with
respect to payment of dividends or distributions on liquidation or redemption to
the Series A Preferred Stock in violation of limitations set forth in the
certificate of designation, and (iii) default on the payment of indebtedness in
an amount of $5,000,000 or more. So long as a triggering event described in (i)
above is continuing, dividends must be paid in cash to the extent permitted by
the terms of agreements relating to the Company's debt. At December 31, 1996,
accrued but unpaid dividends were approximately $698,000.
 
     Holders of Series A Preferred Stock have the right, beginning five years
from the date of issuance, to convert their Series A Preferred Stock (including
shares issued as dividends) into shares of Metrocall Common Stock based on the
market price of the Common Stock at the time of conversion. Series A Preferred
Stock may, at the holders' option, be converted sooner upon a change of control
of Metrocall, as defined in the certificate of designation. The Series A
Preferred Stock must be redeemed on November 15, 2008, for an amount equal to
the stated value plus accrued and unpaid dividends.
 
     The Series A Preferred Stock may be redeemed by the Company in whole or in
part (subject to certain minimums) beginning November 15, 1999. Prior to then,
the Series A Preferred Stock may be redeemed by the Company in whole in
connection with a sale of the Company (as described in the Series A Preferred
Stock certificate of designation) unless the holders have exercised their rights
to convert to Metrocall Common Stock in connection with the transaction. The
redemption price prior to November 15, 2001, is equal to the stated value of the
shares of Series A Preferred Stock, plus accrued and unpaid dividends, and a
redemption
 
                                      F-18
<PAGE>   161
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
8.  STOCK AND STOCK RIGHTS -- (CONTINUED)
premium, as defined. After November 15, 2001, the Series A Preferred Stock may
be redeemed for the stated value of $250 per share, without premium.
 
     Holders of Series A Preferred Stock have the right to elect two members to
the Company's Board of Directors. If a triggering event has occurred and is
continuing, the holders of Series A Preferred Stock have the right to elect
additional directors so that directors elected by such holders shall constitute
no less than 40% of the members of the Board of Directors. The Company is
required to obtain the approval of the holders of not less than 75% of the
Series A Preferred Stock before undertaking (i) any changes in the Metrocall
Certificate of Incorporation and Bylaws that adversely affect the rights of
holders of the Series A Preferred Stock, (ii) a liquidation, winding up or
dissolution of the Company or the purchase of shares of capital stock of
Metrocall from holders of over 5% of the issued and outstanding voting
securities, (iii) any payment of dividends on or redemption of Metrocall Common
Stock; or (iv) issuance of any additional shares of Series A Preferred Stock
(except in payment of dividends) or any shares of capital stock having
preferences on liquidation or dividends ranking equally to the Series A
Preferred Stock. The Company is also required to obtain approval of holders of
not less than a majority of the issued and outstanding Series A Preferred Stock
before undertaking (i) any acquisition involving consideration having a value
equal to or greater than 50% of the market capitalization of the Company or (ii)
any sale of the Company unless Metrocall redeems the Series A Preferred Stock.
 
  Series B Preferred Stock
 
     In connection with the Page America transaction (see Note 14), the Board of
Directors has authorized the designation of 9,000 shares of Preferred Stock as
Series B Preferred Stock. Each share of Series B Preferred Stock will have a
stated value of $10,000 per share and a liquidation preference, which is junior
to the Series A Preferred Stock but senior to the shares of Metrocall Common
Stock, equal to its stated value. The Series B Preferred Stock will carry a
dividend of 14% of the stated value per year, payable semiannually in cash or in
additional shares of Series B Preferred Stock, at the Company's option. The
Company has agreed to issue 1,500 shares of Series B Preferred Stock pursuant to
the Amended Page America Agreement (see Note 14).
 
     Subject to the approval of the conversion rights by holders of the
Metrocall Common Stock, beginning on September 1, 1997, and quarterly
thereafter, the holders of Series B Preferred Stock will have the right to
convert up to 25% of the number of Series B Preferred Stock initially issued
(plus shares of Series B Preferred Stock issued as dividends on such shares, and
as dividends on such dividends) into shares of Metrocall Common Stock at the
current market value of the Common Stock, as defined.
 
     The Series B Preferred Stock must be redeemed on the twelfth anniversary of
the initial issuance for an amount equal to the stated value, plus accrued and
unpaid dividends. The Series B Preferred Stock may also be redeemed by the
Company in whole or in part at any time for an amount equal to the stated value
of the sales to be redeemed plus accrued and unpaid dividends. If Metrocall
elects to redeem Series B Preferred Stock, the holders thereof will have the
right to convert any Series B Preferred stock that was then convertible into
Metrocall Common Stock within 15 business days after receipt of notice of
redemption.
 
     The Company is required to obtain the approval of holders of a majority of
the issued and outstanding Series B Preferred Stock before undertaking (i) any
changes in the Metrocall Certificate of Incorporation and Bylaws that adversely
affect the rights of the holders of Series B Preferred Stock and (ii) any
changes in the Series B Certificate of Designation. The Series B Preferred Stock
also contains restrictions on the ability of Metrocall to incur any debt or
issue securities (other than the Series A Preferred Stock) that are senior to
the Series B Preferred Stock.
 
                                      F-19
<PAGE>   162
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
8.  STOCK AND STOCK RIGHTS -- (CONTINUED)
  Common Stock Equivalent Preferred Stock
 
     In connection with the Page America transaction (see Note 14), the Board of
Directors has authorized the designation of 4,000 shares of Preferred Stock as
Common Stock Equivalent Preferred Stock. Pursuant to the Amended Page America
Agreement (see Note 14), Page America may receive CSE Preferred Stock. Each
share of CSE Preferred Stock will equal .001 shares of a series of preferred
stock. Each share of CSE Preferred Stock will have one vote per share on all
matters submitted to a vote of holders of Metrocall Common Stock, will be
entitled to receive a dividend equal to any dividend declared and paid with
respect to the Metrocall Common Stock, will have a liquidation preference equal
to that of the Metrocall Common Stock and will be automatically converted into
Metrocall Common Stock when sufficient shares have been approved by the
Company's stockholders. In the event sufficient shares of Metrocall Common Stock
are not available and the Company's stockholders have not approved an increase
in the authorized number of shares of Metrocall Common Stock to 60,000,000 by
June 1, 1997, the CSE Preferred Stock will be automatically converted into that
number of shares of Series B Preferred Stock equal to the total share value of
the CSE Preferred Stock (as of the closing of the Page America transaction)
divided by $10,000.
 
  Warrants
 
     In connection with the issuance of the Series A Preferred Stock, discussed
above, the Company issued on November 15, 1996, warrants to purchase Metrocall
Common Stock. Each warrant represents the right of the holder to purchase 18.266
shares of Metrocall Common Stock or an aggregate of 2,915,254 shares of
Metrocall Common Stock. The exercise price per share is $7.40. The warrants
expire November 15, 2001.
 
     The total value allocated to the warrants for financial reporting purposes,
$7.9 million or $2.70 per share, will be accreted over the term of the Series A
Preferred Stock as preferred dividends.
 
  Variable Common Rights
 
     As part of the merger consideration, stockholders of A+ Network received
VCRs equal to the number of shares of Metrocall Common Stock they received in
the merger. Each VCR entitles the holder to receive a payment of up to $5.00 in
either the Company's Common Stock or cash, at the Company's option, if the
market value, as defined, of the Company's Common Stock at November 15, 1997, is
less than a specified target price. The target price will be adjusted downward,
but not upward, based on changes in an index composed of the average closing bid
prices of three other companies in the paging industry since the announcement of
the merger. If changes in the index cause the target price to be lower than a
floor price of $16.10 (which is not indexed and therefore not adjusted
downward), the VCR payment will be zero without regard to the trading value of
the Company's Common Stock. At November 15, 1996, the date the merger was
completed, the target price was estimated to be approximately $5.97 per share.
For financial reporting purposes, no value has been assigned to the VCRs. As of
December 31, 1996, the target price was below the fixed floor price of $16.10
per share.
 
  Stock Option Plans
 
     In 1993, the Company adopted a Stock Option Plan (the "1993 Plan"). Under
the 1993 Plan, as amended, options to purchase up to an aggregate of 975,000
shares of Common Stock were reserved for grants to key employees of the Company.
The 1993 Plan limits the maximum number of shares that may be granted to any
person eligible under the 1993 Plan to 325,000. All options have been issued
with exercise prices equal to the fair market value at date of grant. All
options granted under the 1993 Plan become fully vested and exercisable on the
second anniversary of the date of grant. Each option granted under the 1993 Plan
will terminate no later than ten years after the date the option was granted.
Effective with the approval of the
 
                                      F-20
<PAGE>   163
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
8.  STOCK AND STOCK RIGHTS -- (CONTINUED)
Metrocall 1996 Stock Option Plan in May 1996, discussed below, no additional
options will be granted under the 1993 Plan.
 
     In 1993, the Company also adopted a Directors Stock Option Plan (the
"Directors Plan"). Under the Directors Plan, options to purchase up to an
aggregate of 25,000 shares of Common Stock are available for grants to directors
of the Company who are neither officers nor employees of the Company ("Eligible
Director"). Options issued under the Directors Plan vest fully on the six-month
anniversary of the date of grant. Each Eligible Director was also granted an
option to purchase 1,000 shares of Common Stock on the first and second
anniversaries of the grant date of the initial option if the director continues
to be an Eligible Director on each of such anniversary dates.
 
     In May 1996, the Company's stockholders approved the Metrocall 1996 Stock
Option Plan (as amended, the "1996 Plan") an amendment to which was approved by
the stockholders in November 1996. Under the 1996 Plan, options to purchase up
to an aggregate of 2,000,000 shares of Common Stock were reserved for grant to
key employees, officers and nonemployee directors who have never been employed
by the Company ("Qualified Director"). The 1996 Plan limits the maximum number
of shares that may be granted to any person eligible under the 1996 Plan to
750,000. If any option granted under the 1996 Plan expires or terminates prior
to exercise in full, the shares subject to that option shall be available for
future grants under the 1996 Plan. All employees of the Company and Qualified
Directors of the Company are eligible to participate in the 1996 Plan. Each
option granted under the 1996 Plan will terminate no later than ten years after
the date the option was granted.
 
     Under the 1996 Plan, both incentive stock options and nonstatutory stock
options are available for employees. For incentive stock options, the option
price shall not be less than the fair market value of a share of Metrocall
Common Stock on the date the option is granted. For nonstatutory options, the
option price shall not be less than the par value of Metrocall Common Stock. All
options granted to Qualified Directors shall be nonstatutory options. Upon
approval of the 1996 Plan, each Qualified Director was granted an initial option
to purchase 10,000 shares of Metrocall Common Stock. Thereafter, every Qualified
Director will be granted an initial option to purchase 10,000 shares of
Metrocall Common Stock at the time the Qualified Director commences service on
the board of directors. Subsequently, each Qualified Director who received an
initial grant of an option shall receive an additional option to purchase 1,000
shares of Metrocall Common Stock on each anniversary of the initial option,
provided that the director continues to be a Qualified Director on each
anniversary date. Options granted to Qualified Directors shall become fully
vested six months after the date of grant. The exercise price for options
granted to Qualified Directors shall be the fair market value of Metrocall
Common Stock on the date the option is granted or the date of shareholder
approval of the 1996 Plan, if later.
 
     In connection with the merger of Metrocall and FirstPAGE, Metrocall
exchanged options to purchase 47,387 shares of Metrocall Common Stock with
former FirstPAGE option holders. These options are fully vested and exercisable
and have an exercise price of approximately $1.04 per common share. Of the total
options exchanged, 23,219 were unexercised at December 31, 1996.
 
     In connection with the merger of Metrocall and A+ Network, Metrocall
exchanged options to purchase shares of Metrocall Common Stock with former A+
Network option holders. These options are fully vested and exercisable and have
an exercise price of approximately $6.04 per common share. Of the total options
exchanged, none had been exercised through December 31, 1996.
 
                                      F-21
<PAGE>   164
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
8.  STOCK AND STOCK RIGHTS -- (CONTINUED)
     Pursuant to the stock option plans discussed above, the Board of Directors
has approved the issuances of the following Common Stock options.
 
<TABLE>
<CAPTION>
                                      WEIGHTED-                     WEIGHTED-                     WEIGHTED-
                                       AVERAGE                       AVERAGE                       AVERAGE
YEAR ENDED DECEMBER                   EXERCISE                      EXERCISE                      EXERCISE
31,                       1994          PRICE           1995          PRICE           1996          PRICE
- -------------------   -------------   ---------    --------------   ---------    --------------   ---------
<S>                   <C>             <C>          <C>              <C>          <C>              <C>
Outstanding,
  beginning of
  period...........         316,500    $ 19.47            529,387    $ 15.75            798,958    $ 17.75
Granted............         170,500      13.05            303,500      20.24            656,216      17.70
Canceled...........          (5,000)     19.50            (12,500)     20.10           (172,337)     18.11
Issued in FirstPAGE
  merger...........          47,387       1.04                 --         --                 --         --
Issued in A+
  Network merger...              --         --                 --         --            468,904       6.04
Exercised..........              --         --            (21,429)      2.21             (4,739)      1.04
                      -------------   ---------    --------------   ---------    --------------   ---------
Outstanding, end of
  period...........         529,387    $ 15.75            798,958    $ 17.75          1,747,002    $  8.18
                       ============    =======      =============    =======      =============    =======
Options
  exercisable......          50,387                       339,958                       966,417
Option price
  range -- options
  outstanding......   $1.035-$19.50                $1.035-$22.125                $1.035-$22.125
Option price
  range -- options
  exercisable......   $1.035-$18.25                $ 1.035-$19.50                $1.035-$22.125
</TABLE>
 
     On September 18, 1996 the Compensation Committee of the Board of Directors
approved a change in the exercise price for substantially all outstanding Common
Stock options for current employees and officers. The new exercise price was
$7.94 per share, the fair market value on the date of the change. On February 5,
1997, the Compensation Committee of the Board of Directors approved a change in
the exercise price for substantially all outstanding options for current
employees, officers and directors. The new exercise price was $6.00 per share,
the fair market value on the date of the change. Repricing of options for
nonemployee directors is subject to stockholder approval.
 
  Employee Stock Purchase Plan
 
     In May 1996, the Company's stockholders approved the Metrocall, Inc.
Employee Stock Purchase Plan (the "Stock Purchase Plan"). Substantially all
full-time employees are eligible to participate in the Stock Purchase Plan.
Participants in the Stock Purchase Plan may elect to purchase shares of
Metrocall Common Stock at the lesser of 85% of the fair market value on either
the first or last trading day of each payroll deduction period. No employee may
purchase in one calendar year shares of Common Stock having an aggregate fair
market value in excess of $25,000. Total shares authorized for issuance under
the Stock Purchase Plan are 300,000. In July 1996, 11,942 shares were issued
under the Stock Purchase Plan for $9.24 per share. At December 31, 1996, 35,203
shares were due to participants in the Stock Purchase Plan at a price of $4.14
per share. The weighted-average fair value of shares sold in 1996 was $6.56 per
share.
 
  SFAS No. 123, "Accounting for Stock-Based Compensation"
 
     The Company applies APB Opinion No. 25 and related Interpretations in
accounting for its stock option and stock purchase plans. Since the Company has
granted options to acquire Common Stock at an exercise
 
                                      F-22
<PAGE>   165
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
8.  STOCK AND STOCK RIGHTS -- (CONTINUED)
price equal to the fair value of the Common Stock on the date of grant, no
compensation cost has been recognized for its stock option and stock purchase
plans other than for approximately $285,000 of compensation expense recognized
in 1995 upon amending option agreements with certain former employees (see Note
5). Had compensation cost for the Company's stock-based compensation plans been
determined for 1995 and 1996 grants using the fair value at the grant dates for
awards under those plans consistent with the method of SFAS Statement No. 123,
the Company's loss and loss per share information would have been increased to
the pro forma amounts indicated below.
 
<TABLE>
<CAPTION>
                                                                            1995        1996
                                                                          --------    --------
    <S>                                                    <C>            <C>         <C>
    Loss before extraordinary item attributable to         As reported    $(17,407)   $(46,235)
      common stockholders...............................   Pro forma       (17,779)    (49,589)
    Loss attributable to common stockholders............   As reported     (20,102)    (49,910)
                                                           Pro forma       (20,474)    (53,264)
    Loss per share before extraordinary item               As reported       (1.49)      (2.84)
      attributable to common stockholders...............   Pro forma         (1.52)      (3.05)
    Loss per share attributable to common                  As reported       (1.72)      (3.07)
      stockholders......................................   Pro forma         (1.75)      (3.28)
</TABLE>
 
     Because the Statement No. 123 method of accounting has not been applied to
options granted prior to January 1, 1995, the resulting pro forma compensation
cost may not be representative of that to be expected in future years.
 
     The weighted-average fair value of options granted in 1995 and 1996 was
$7.34 and $5.89, respectively, after the effect of repricing discussed above.
The fair value of each option grant is estimated on the date of grant using the
Black-Scholes option pricing model with the following weighted-average
assumptions used for grants in 1995 and 1996: risk free rate of 6.43%, expected
lives of ten years and expected volatility of 60.6%.
 
9.  COMMITMENTS AND CONTINGENCIES
 
  Legal and Regulatory Matters
 
     The Company is subject to certain legal and regulatory matters in the
normal course of business. In the opinion of management, the outcome of such
assertions will not have a material adverse effect on the financial position or
the results of the operations of the Company.
 
     In April 1996, the Company entered into an agreement to purchase certain of
the assets of Source One Wireless, Inc. ("Source One") and placed $1 million
cash in escrow. On June 26, 1996, the Company advised Source One that Source One
had failed to meet certain conditions to completion of the transaction and
terminated the agreement. On September 20, 1996, Source One filed an action in
the Circuit Court of Cook County, Illinois, claiming that the Company had
breached the agreement and seeking specific performance of the purchase
agreement or unspecified damages in excess of $80 million. The Company intends
to vigorously defend the claims in this action and believes it has meritorious
defenses to this action.
 
     The Company has received communications from a seller in connection with an
acquisition that occurred in 1994 asserting damages resulting from alleged
misrepresentations in connection with the acquisition. The seller, who received
shares of the Company's Common Stock as acquisition consideration, is seeking to
receive additional shares of Common Stock and participation on the Company's
board of directors, among other requests. To date, no claim has been filed;
however, if necessary, management will vigorously defend any legal actions that
might arise from such assertions.
 
                                      F-23
<PAGE>   166
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
9.  COMMITMENTS AND CONTINGENCIES -- (CONTINUED)
  Leases
 
     The Company has various leasing arrangements (as lessee) for office space
and communications equipment sites. Rental expense related to operating leases
was approximately $2,627,000, $4,818,000, and $8,612,000 for the years ended
December 31, 1994, 1995 and 1996, respectively.
 
     Minimum rental payments as of December 31, 1996, required under operating
leases that have initial or remaining noncancelable lease terms in excess of one
year are as follows (in thousands):
 
<TABLE>
        <S>                                                                   <C>
        1997...............................................................   $11,867
        1998...............................................................     9,456
        1999...............................................................     6,364
        2000...............................................................     4,286
        2001...............................................................     2,431
        Thereafter.........................................................     4,347
                                                                              -------
                                                                              $38,751
                                                                              =======
</TABLE>
 
     Rent expense for lease agreements between the Company and related parties
for office space, tower sites and transmission systems, excluding consolidated
entities, was approximately $215,000, $359,000 and $334,000 for the years ended
December 31, 1994, 1995 and 1996, respectively.
 
     The Company leases office and warehouse space from a company owned by a
director of the Company. The annual rental commitment under these leases, which
expire in 1998, is approximately $520,000. The Company believes the terms of
these leases are at least as favorable as those that could be obtained from a
non-affiliated party.
 
  Profit Sharing Plan and Retirement Benefits
 
     In 1995, the Company adopted the Metrocall, Inc. Savings and Retirement
Plan (the "Plan") a combination employee savings plan and discretionary
profit-sharing plan that covers substantially all full-time employees. The Plan
qualifies under section 401(k) of the Internal Revenue Code (the "IRC"). Under
the Plan, participating employees may elect to voluntarily contribute on a
pretax basis between 1% and 15% of their salary up to the annual maximum
established by the IRC. The Company has agreed to match 25% of the employee's
contribution, up to 3% of each participant's gross salary. Contributions made by
the Company vest 20% per year beginning on the second anniversary of the
participant's employment. Profit sharing contributions are discretionary. The
Company's expense for contributions under this Plan and the Company's previous
profit sharing plan, recorded in the accompanying consolidated statements of
operations were $200,000, $93,000, and $112,000 for the years ended December 31,
1994, 1995 and 1996, respectively.
 
10.  EQUITY INVESTMENT
 
     The Company acquired a 33 1/3% interest in Solo America, a national sales
and marketing distribution company. In its relationship with Solo America, the
Company has agreed to advance $1 million to Solo America, payable in three
installments, in exchange for Solo America's efforts to market the Company's
paging products and services. Through December 31, 1996, the Company has made
equity installments totaling $666,666. The Company recorded a charge of
approximately $207,000 to recognize the Company's share of Solo America's net
loss in the year ended December 31, 1996. The Company has recorded a further
reserve against the investment in Solo America at December 31, 1996 of
approximately $238,000.
 
                                      F-24
<PAGE>   167
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
11.  INCOME TAXES
 
     As of December 31, 1996, the Company had net operating loss and investment
tax credit carryforwards of approximately $122.8 million and $1.1 million,
respectively, which expire in the years 1999 through 2011. The benefits of these
carryforwards may be limited in the future due to significant changes in the
ownership of the Company. Net operating loss carryforwards may be used to offset
up to 90 percent of the Company's alternative minimum taxable income. The
provision for alternative minimum tax will be allowed as a credit carryover
against regular tax in the future in the event regular tax exceeds alternative
minimum tax expense. To the extent that acquired net operating losses are
utilized in future periods, the benefit will first be recognized to reduce
acquired intangible assets before reducing the provision for income taxes.
 
     Under the provisions of SFAS No. 109, the tax effect of the net operating
loss and investment tax credit carryforwards, together with net temporary
differences, represents a net deferred tax asset for which management has
reserved 100% due to the uncertainty of future taxable income. These
carryforwards will be benefited for financial reporting purposes when utilized
to offset future taxable income.
 
     The components of net deferred tax assets (liabilities) were as follows as
of December 31, 1995 and 1996 (in thousands):
 
<TABLE>
<CAPTION>
                                                                       DECEMBER 31,
                                                                   --------------------
                                                                     1995        1996
                                                                   --------    --------
        <S>                                                        <C>         <C>
        Deferred tax assets:
             Allowance for doubtful accounts....................   $    386    $    502
             Management reorganization..........................        590         217
             New pagers on hand.................................        633         971
             Intangibles........................................         --       2,182
             Other..............................................        572         887
             Net operating loss carryforwards...................     27,055      48,979
                                                                   --------    --------
                  Total deferred tax assets.....................     29,236      53,738
                                                                   ========    ========
        Deferred tax liabilities:
             Basis differences attributable to purchase
               accounting.......................................    (11,814)    (76,687)
             Depreciation and amortization expense..............     (5,288)     (9,449)
             Other..............................................       (388)       (143)
                                                                   --------    --------
                  Total deferred tax liabilities................    (17,490)    (86,279)
                                                                   ========    ========
        Net deferred tax asset (liability)......................     11,746     (32,541)
        Less: Valuation allowance...............................    (23,560)    (44,146)
                                                                   --------    --------
                                                                   $(11,814)   $(76,687)
                                                                   ========    ========
</TABLE>
 
                                      F-25
<PAGE>   168
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
11.  INCOME TAXES -- (CONTINUED)
     The income tax benefit for the years ended December 31, 1994, 1995 and
1996, is primarily the result of the amortization of the basis differences
attributable to purchase accounting and is composed of the following (in
thousands):
 
<TABLE>
<CAPTION>
                                                                        YEAR ENDED
                                                                       DECEMBER 31,
                                                                  ----------------------
                                                                  1994    1995     1996
                                                                  ----    ----    ------
        <S>                                                       <C>     <C>     <C>
        Income tax (provision) benefit
             Current --
                  Federal......................................   $(35)   $(36)   $   --
                  State........................................    (13)    (55)     (447)
             Deferred..........................................    200     686     1,468
                                                                  ----    ----    ------
                                                                  $152    $595    $1,021
                                                                  ====    ====    ======
</TABLE>
 
     The benefit for income taxes for the years ended December 31, 1994, 1995
and 1996, results in effective rates that differ from the Federal statutory rate
as follows:
 
<TABLE>
<CAPTION>
                                                                        YEAR ENDED
                                                                       DECEMBER 31,
                                                                  -----------------------
                                                                  1994     1995     1996
                                                                  -----    -----    -----
        <S>                                                       <C>      <C>      <C>
        Statutory Federal income tax rate......................    35.0%    35.0%    35.0%
        Effect of graduated rates..............................    (1.0)    (1.0)    (1.0)
        State income taxes, net of Federal tax benefit.........     2.8      2.8      4.6
        Net operating losses for which no tax benefit is
          currently available..................................   (12.5)   (30.6)   (24.6)
        Permanent differences..................................   (12.1)    (2.6)   (11.8)
                                                                  -----    -----    -----
                                                                   12.2%     3.6%     2.2%
                                                                  =====    =====    =====
</TABLE>
 
12.  SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
 
     The Company made cash payments for interest of $2,576,000, $9,538,000 and
$19,082,000 for the years ended December 31, 1994, 1995 and 1996, respectively.
The Company made cash payments for income taxes of $48,000, $55,000 and $264,000
for the years ended December 31, 1994, 1995 and 1996, respectively.
 
     A capital lease obligation of $3.2 million was incurred when the Company
entered into a lease for new office space in 1994 (see Note 6). In 1996, the
Company executed a lease agreement for computer equipment which is treated as a
capital lease obligation for financial reporting purposes of $1.1 million.
 
                                      F-26
<PAGE>   169
 
                        METROCALL, INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
13.  INTERIM FINANCIAL DATA (UNAUDITED)
 
     The following table of quarterly financial data has been prepared from the
financial records of the Company, without audit, and reflects all adjustments
that are, in the opinion of management, necessary for a fair presentation of the
results of operations for the interim periods presented:
 
<TABLE>
<CAPTION>
                                          MARCH 31               JUNE 30             SEPTEMBER 30            DECEMBER 31
                                     ------------------    -------------------    -------------------    --------------------
                                      1995       1996       1995        1996       1995        1996        1995        1996
                                     -------    -------    -------    --------    -------    --------    --------    --------
<S>                                  <C>        <C>        <C>        <C>         <C>        <C>         <C>         <C>
Revenues..........................   $25,796    $29,939    $27,640    $ 32,048    $27,978    $ 36,622    $ 29,445    $ 51,348
Income (loss) from operations.....       766     (4,770)       612      (8,093)      (721)     (7,118)     (6,440)     (5,464)
Loss before extraordinary item
  attributable to common
  stockholders....................    (1,690)    (7,689)    (2,038)    (10,955)    (3,370)    (14,315)    (10,309)    (13,276)
Loss attributable to common
  stockholders....................    (1,690)    (7,689)    (2,038)    (10,955)    (3,370)    (14,315)    (13,004)    (16,951)
Loss per share before
  extraordinary item attributable
  to common stockholders..........     (0.16)     (0.53)     (0.19)      (0.75)     (0.31)      (0.94)      (0.71)      (0.65)
Loss per share attributable to
  common
  stockholders....................     (0.16)     (0.53)     (0.19)      (0.75)     (0.31)      (0.94)      (0.89)      (0.83)
</TABLE>
 
     The sum of the per share amounts may not equal the annual amounts because
of the changes in the weighted-average number of shares outstanding during the
year. The loss from operations in the quarter ended December 31, 1995, includes
a charge of $2,050,000 for management reorganization charge described in Note 5.
Net loss for the three months ended December 31, 1995 and 1996, includes charges
for extraordinary items, net of applicable tax benefit, if any, for the
write-off of deferred financing costs of $2,695,000 ($0.23 per share) and costs
associated with the repurchase of the A+ Notes of $3,675,000 ($0.23 per share),
respectively, discussed in Note 6.
 
14.  PENDING ACQUISITION
 
     On April 22, 1996, the Company signed a definitive acquisition agreement
(the "Page America Agreement") with Page America Group, Inc. of Hackensack, New
Jersey ("Page America"). The Page America Agreement was subsequently amended on
January 30, 1997 (the "Amended Page America Agreement"). Pursuant to the Amended
Page America Agreement, as subsequently modified, (i) Metrocall will acquire
substantially all of the assets and assume substantially all of Page America's
accounts payable and certain obligations under various office and equipment
leases and (ii) Page America will receive (a) $25 million in cash subject to
reduction for amounts payable for pagers provided by the Company, (b)1,500
shares of Series B Preferred Stock with a stated value of $15 million, (c)
762,960 shares of the Company's Common Stock and (d) additional shares of the
Company's Common Stock or other equity securities (CSE Preferred Stock, see Note
8) having a value equal to $15 million, subject to adjustment based on certain
changes in Page America's working capital and service revenues. Consummation of
the Page America acquisition is subject to a number of conditions including, but
not limited to, receipt of all necessary regulatory approvals and approval by
the Page America stockholders. There can be no assurance that such approvals
will be obtained. The pending transaction, if consummated, will be accounted for
as a purchase.
 
                                      F-27
<PAGE>   170
 
               MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                      CONDITION AND RESULTS OF OPERATIONS
 
     The following discussion and analysis of the financial condition and
results of operations of the Company should be read in conjunction with the
financial statements and the notes thereto which appear elsewhere in this annual
report.
 
     All statements contained herein that are not historical facts, including
but not limited to, statements regarding anticipated future capital
requirements, the Company's future development plans, the Company's ability to
obtain additional debt, equity or other financing, and the Company's ability to
generate cash from operations and further savings from existing operations, are
based on current expectations. These statements are forward looking in nature
and involve a number of risks and uncertainties. Actual results may differ
materially. Among the factors that could cause actual results to differ
materially are the following: the availability of sufficient capital to finance
the Company's business plan on terms satisfactory to the Company; competitive
factors, such as the introduction of new technologies and competitors into the
paging and wireless communications industry; pricing pressures which could
affect demand for the Company's services; changes in labor, equipment and
capital costs; future acquisitions and strategic partnerships; general business
and economic conditions; and the other risk factors described from time to time
in the Company's reports filed with the Securities and Exchange Commission. The
Company wishes to caution readers not to place undue reliance on any such
forward looking statements, which statements are made pursuant to the Private
Securities Litigation Reform Act of 1995 and, as such, speak only as of the date
made.
 
OVERVIEW
 
     Metrocall is the fifth largest paging company in the United States, based
on 2,142,351 pagers in service as of December 31, 1996. From December 31, 1993
to December 31, 1996, the Company has increased its base of pagers in service
from less than 250,000 to more than 2.1 million. This growth has been
accomplished through a combination of internal growth and a program of mergers
and acquisitions. In July, August, and November 1996, Metrocall completed the
Parkway Paging, Satellite Paging, Message Network and A+ Network acquisitions,
respectively. As a result of these acquisitions, Metrocall added approximately
900,000 subscribers to its base of pagers in service. In addition to the
acquisitions, the Company grew its subscriber base by approximately 32% through
internal growth. During 1995, the Company's total pagers in service grew
approximately 25%, exclusively through internal growth. In August and November
1994, Metrocall completed the FirstPAGE acquisition and the MetroPaging
acquisition, respectively. As a result of these acquisitions, Metrocall added
approximately 420,000 subscribers to its base of pagers in service, more than
doubling its total pagers in service during 1994 alone. The consolidated
statements of operations for the years ended December 31, 1994 and 1996 includes
the results of operations for acquired companies from their respective
acquisition dates only. The definitions below relate to management's discussion
of the Company's results of operations that follows.
 
     - Service, rent and maintenance revenues: include primarily monthly,
       quarterly, semi-annually and annually billed recurring revenue, not
       generally dependent on usage, charged to subscribers for paging and
       related services such as voice mail and pager repair and replacement.
       Service, rent and maintenance revenues also include revenues derived from
       telemessaging, cellular and long distance services.
 
     - Net revenues: include service, rent and maintenance revenues and sales of
       customer owned and maintained ("COAM") pagers less net book value of
       pagers sold.
 
     - Service, rent and maintenance expenses: include costs related to the
       management, operation and maintenance of the Company's network systems
       and customer support centers.
 
     - Selling and marketing expenses: include salaries, commissions and
       administrative costs for the Company's sales force and related marketing
       and advertising expenses.
 
     - General and administrative expenses: include executive management,
       accounting, office telephone, rents and maintenance, information services
       and employee benefits.
 
                                      F-28
<PAGE>   171
 
     The Company derives the majority of its revenues from fixed periodic
(usually monthly) fees, generally not dependent on usage, charged to subscribers
for paging services. While a subscriber continues to use the Company's service,
operating results benefit from this recurring revenue stream with minimal
requirements for incremental selling expenses or other fixed costs. The
Company's total revenues have grown from $37.7 million for the year ended
December 31, 1993 to approximately $150.0 million for the year ended December
31, 1996.
 
     In recent years, paging, including paging related services, has been one of
the fastest growing, most cost competitive forms of wireless communications.
Industry experts estimate that total pagers in service will increase to more
than 75 million by the end of the century from approximately 43 million in 1996.
In order to capitalize on this anticipated growth, the Company has expanded its
channels of distribution to include Company-owned and operated retail stores,
strategic partnerships and alliances, franchises and internet sales, among
others; with each focusing on the sale rather than lease of pagers. While there
has been an increase in the percentage of pagers sold through indirect, as
opposed to direct, channels, the Company does not believe this change will have
a material effect on its results of operations or liquidity. The Company's
average monthly service, rent and maintenance revenue per unit ("ARPU") for
paging services for the years ended December 31, 1995 and 1996 was $9.15 and
$8.01, respectively. This decline in ARPU is largely a function of the changing
mix of distribution channels through internal growth and acquisitions and an
overall average ARPU decline of approximately 6.6%. In order to increase
penetration and maximize utilization of its network, the Company emphasizes a
number of distribution channels characterized by lower ARPU, with
correspondingly lower costs. For example, the Company's strategic partners and
third-party resellers do not lease pagers from the Company and generally
purchase services in large quantities at discounted prices. This lower revenue
base is, however, offset by lower sales and administrative costs for their
subscribers. The Company has reduced capital expenditure requirements for these
new customers, as they do not need to make investments in paging equipment for
these subscribers. More customers are purchasing pagers either directly from the
Company or through Company owned retail stores, third-party retail outlets and
the Company's strategic partners. While the Company does not earn lease revenues
from these sold units, the overall capital expenditure requirement is reduced or
eliminated. Enhanced services have partially offset declines in ARPU. The
Company has been successful in marketing enhanced services such as nationwide
paging service and voice mail, to its subscriber base, as well as branded
customer service and billing services for the Company's strategic partners and
franchisees. Such services carry a low incremental cost to the Company. The
Company is attempting to offset declines in ARPU through the expansion of its
distribution channels, continued marketing of enhanced services and expansion
into support functions, including billing and customer service.
 
     The Company's growth and expansion into new markets, whether internal or
through acquisitions, require significant capital investment for the
installation of paging equipment and technical infrastructure. Additionally, the
Company incurred significant expenditures throughout the first three quarters of
1996 while it completed the expansion and buildout of its nationwide network.
The Metrocall Nationwide Network serves the top 100 Standard Metropolitan
Statistical Areas. The Company also purchases pagers for that portion of its
subscriber base that leases equipment from the Company.
 
     The Company's focus is now on integrating its 1996 acquisitions and
increasing the utilization of its networks constructed during 1996. As a result
of the completion of the Company's nationwide network and an emphasis on
distribution channels through which pagers are sold rather than leased, capital
expenditures are expected to be reduced in 1997. The combination of growing
revenues and EBITDA along with reduced levels of capital expenditures should
result in improving leverage ratios and access to capital in future periods.
While the Company has no current outstanding commitments, other than the
agreement to acquire the assets of Page America, the Company will continue to
evaluate strategic acquisition targets in the future. Potential future
acquisitions would be evaluated on significant strategic opportunities such as
geographic coverage and regulatory licenses and other factors including overall
valuation, consideration and availability of financing.
 
     The Company's long-term strategy is to continue to expand its business by
providing paging and other wireless communication services to an increasingly
broad base of subscribers throughout the United States, while increasing total
revenues and EBITDA and de-emphasizing that portion of the business which has
historically leased pagers. The Company believes that increases in revenues from
the sale of pagers and service
 
                                      F-29
<PAGE>   172
 
revenue from providing paging service to such pagers will more than make up for
losses of rental revenues derived from leasing pagers, which has increasingly
involved high volume, lower margin transactions. The Company is seeking to
increase its base of subscribers by expanding its operations in existing,
contiguous and other markets, through start-up operations and internal growth.
As discussed above, the Company significantly expanded its geographic coverage
and subscriber base through four acquisitions in 1996. Furthermore, the Company
has signed a definitive acquisition agreement to acquire the assets of Page
America, as discussed below.
 
                                      F-30
<PAGE>   173
 
RESULTS OF OPERATIONS
 
     The following table sets forth the percentage of net revenues (total
revenues less the net book value of products sold) represented by certain items
in the Company's Consolidated Statements of Operations and certain other
information for the periods indicated.
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED DECEMBER 31,
                                                              -------------------------------
                                                               1994       1995        1996
                                                              -------    -------    ---------
    <S>                                                       <C>        <C>        <C>
    CONSOLIDATED STATEMENT OF OPERATIONS DATA:
      Revenues:
         Service, rent and maintenance.....................      97.7%      96.7%        96.7%
         Product sales.....................................      16.0       19.6         20.2
         Net book value of products sold...................     (13.7)     (16.3)       (16.9)
                                                                -----      -----        -----
              Net revenues.................................     100.0      100.0        100.0
                                                                -----      -----        -----
      Operating expenses:
         Service, rent and maintenance.....................      27.4       28.6         29.9
         Selling and marketing.............................      14.6       16.4         18.9
         General and administrative........................      26.2       25.9         25.7
         Depreciation and amortization.....................      27.2       33.1         45.4
         Management reorganization charge..................        --        2.1           --
                                                                -----      -----        -----
      Income (loss) from operations........................       4.6       (6.1)       (19.9)
      Interest and other income............................       0.3        0.3         (0.5)
      Interest expense.....................................      (7.3)     (13.1)       (15.9)
      Loss before extraordinary item.......................      (2.1)     (18.3)       (35.5)
      Loss attributable to common stockholders.............      (4.7)%    (21.1)%      (38.9)%
    OTHER DATA:
      Units in service (end of period).....................   755,546    944,013    2,142,351
      EBITDA (in thousands)(1).............................   $16,152    $27,771    $  32,751
      Ratio of EBITDA to net revenues(1)...................      31.7%      29.1%        25.5%
      ARPU(2)..............................................   $ 10.53    $  9.15    $    8.01
      Average monthly operating cost per unit(3)...........   $  7.36    $  6.71    $    6.28
</TABLE>
 
- ---------------
(1) EBITDA (earnings before interest, taxes, depreciation and amortization and
    certain one-time charges), while not a measure under GAAP, is a standard
    measure of financial performance in the paging industry; EBITDA should not
    be considered in isolation or as an alternative to net income (loss), income
    (loss) from operations, cash flows from operating activities or any other
    measure of performance under GAAP. EBITDA is, however, an approximation of
    the primary financial measure by which the Company's covenants are
    calculated under the Indenture and its credit facility. See "-- Liquidity
    and Capital Resources" for discussion of significant capital requirements
    and commitments. EBITDA excludes one-time, non-recurring charges for
    severance and other compensation costs of approximately $2.0 million
    incurred as a part of a management reorganization charge in 1995.
 
(2) ARPU (average monthly paging revenue per unit) is calculated by dividing (a)
    service, rent and maintenance revenues for the period by (b) the average
    number of units in service for the period. ARPU calculation excludes
    revenues derived from non-paging services such as telemessaging, long
    distance and cellular telephone.
 
(3) Average monthly operating expense per unit is calculated by dividing (a)
    total recurring operating expenses before depreciation and amortization for
    the period by (b) the average number of units in service for the period. For
    this calculation, operating expenses exclude a non-recurring charge of
    approximately $2.0 million incurred as a part of a management reorganization
    in 1995.
 
                                      F-31
<PAGE>   174
 
YEAR ENDED DECEMBER 31, 1996 COMPARED WITH DECEMBER 31, 1995
 
     Total revenues increased approximately $39.1 million from $110.9 million in
the year ended December 31, 1995 ("1995") to approximately $150.0 million for
the year ended December 31, 1996 ("1996"). Net revenues increased approximately
$33.0 million, or 34.6% from $95.3 million in 1995 to $128.3 million in 1996.
The increase is attributable to greater service revenues due to the growth of
pagers in service from 944,013 at December 31, 1995 to 2,142,351 at December 31,
1996. The Parkway, Satellite Paging, Message Network and A+ Network
acquisitions, completed in July, August and November 1996, respectively, added
approximately 900,000 pagers to the Company's subscriber base. Operations of the
acquired companies are included in the results of operations from their
respective acquisition dates. ARPU for paging services has declined from $9.15
in 1995 to $8.01 in 1996 due primarily to the increase in the base of customers
serviced through indirect channels (which generally have lower ARPU due to
volume discounts) and an overall decline in monthly rates of approximately 6.6%
during 1996. On a pro forma basis, assuming each of the acquisitions occurred on
January 1, 1996, the ARPU for paging services (excluding long distance,
telemessaging and cellular services) is estimated to have been $8.52 and $8.21
per month for the year and quarter ended December 31, 1996. Factors affecting
ARPU in future periods include distribution mix of new subscribers, competition
and new technologies, among others. There can be no assurance that ARPU will not
decline in future periods.
 
     Net book value of products sold increased approximately $6.1 million from
$15.5 million in 1995 to $21.6 million in 1996. The gross margin on products
sold decreased from 17.0% in 1995 to 16.6% in 1996. Net book value of products
sold increased principally due to the increase in product sales, partially
offset by increased depreciation expense.
 
     Overall, the Company has experienced a decrease in total average operating
expenses per unit in service (operating expenses per unit before depreciation
and amortization) from 1995 to 1996. Average monthly operating expenses per unit
decreased from $6.71 for 1995 to $6.28 for 1996. Each component of operating
expenses is discussed separately below. Acquisitions require integration of each
company's administrative, finance, sales and marketing organizations, as well as
the integration of each company's technical network operations. Until the
operations of A+ Network are fully integrated, the Company expects average
operating expenses per unit to increase in 1997 from historical 1996 amounts. On
a pro forma basis, assuming that all acquisitions were completed as of January
1, 1996, the Company's average monthly total operating expense per unit in
service is estimated to have been approximately $7.05 for 1996 and $6.63 for the
quarter ended December 31, 1996. The increase in average monthly total operating
expense per unit is primarily due to higher overall per unit operating costs and
a lower number of subscribers per employee in the A+ Network operations.
 
     Service, rent and maintenance expenses increased approximately $11.0
million from $27.3 million in 1995 to $38.3 million in 1996 and increased as a
percentage of net revenues from 28.6% in 1995 to 29.9% in 1996. The Company
estimates that this overall increase in service, rent and maintenance expenses
is primarily attributable to the acquisitions of Parkway Paging ($1.1 million),
Satellite Paging and Message Network ($1.2 million), and A+ Network ($2.4
million) and increased carrier line costs paid to third party service providers
($2.8 million), increased transmitter site rental costs associated with expanded
system coverage ($1.7 million) and increased personnel costs ($1.7 million). On
a per unit basis, monthly service, rent and maintenance expenses decreased from
$2.71 in 1995 to $2.52 in 1996 as a result of combining operations for greater
efficiencies. On a pro forma basis, assuming that all acquisitions were
completed as of January 1, 1996, the Company's average monthly service, rent and
maintenance expense per unit in service is estimated to have been approximately
$2.55 for 1996 and $2.33 for the quarter ended December 31, 1996.
 
     Selling and marketing expenses increased approximately $8.5 million from
$15.7 million in 1995 to $24.2 million in 1996 and increased as a percentage of
net revenues from 16.4% in 1995 to 18.9% in 1996. The Company estimates this
increase in selling and marketing expenses is primarily associated with the
acquisitions of Parkway Paging ($0.7 million), Satellite Paging and Message
Network ($0.5 million), and A+ Network ($2.6 million) and in part due to
increased personnel costs, including salaries and commissions, ($3.6 million),
advertising and promotion ($0.7 million), rents ($0.2 million) and travel
expenses ($0.2
 
                                      F-32
<PAGE>   175
 
million). Monthly selling and marketing expenses per unit have increased
slightly from $1.55 in 1995 to $1.59 in 1996, due primarily to increasing the
Company's sales force as a result of acquisitions in new geographic areas for
the Company. Selling and marketing expenses may increase as a percentage of
revenue as the Company continues to increase markets and expand geographic
coverage. On a pro forma basis, assuming that all acquisitions were completed as
of January 1, 1996, the Company's average monthly selling and marketing expense
per unit in service for the year and quarter ended December 31, 1996 is
estimated to have been approximately $1.77 and $1.68, respectively.
 
     General and administrative expenses increased approximately $8.4 million
from $24.6 million in 1995 to $33.0 million in 1996 and decreased as a
percentage of net revenues from 25.9% in 1995 to 25.7% in 1996. The Company
estimates that this increase in general and administrative expenses is primarily
attributable to the acquisitions of Parkway Paging ($0.3 million), Satellite
Paging and Message Network ($0.5 million) and A+ Network ($3.7 million) from
their respective acquisition dates, offset by synergies resulting from the
reduction of duplicative functions, and in part due to increased expenses for
collection activities ($0.6 million), professional services, including legal and
accounting fees, ($1.2 million) and general corporate expenses ($2.1 million),
including personnel, taxes and maintenance. Monthly general and administrative
expenses per unit have decreased from $2.45 in 1995 to $2.17 in 1996. On a pro
forma basis, assuming that all acquisitions were completed as of January 1,
1996, the Company's average monthly general and administrative expense per unit
in service for the year and quarter ended December 31, 1996 is estimated to have
been approximately $2.73 and $2.62, respectively.
 
     EBITDA increased approximately $5.0 million from $27.8 million in 1995 to
$32.8 million in 1996. As a percentage of net revenues, EBITDA decreased from
29.1% in 1995 to 25.5% in 1996.
 
     Depreciation and amortization increased approximately $26.7 million from
$31.5 million in 1995 to $58.2 million in 1996 and increased as a percentage of
net revenues from 33.0% to 45.4% for 1995 and 1996, respectively. The Company
estimates that the increase in total depreciation expense resulted from
depreciation on additional pagers in service ($12.2 million) and paging
equipment ($2.7 million), other operating equipment ($3.4 million) and
depreciation of assets acquired in the acquisitions of Parkway, Satellite Paging
and Message Network and A+ Network ($2.0 million). Amortization increased
substantially during 1996 due to the amortization of goodwill and other
intangibles recorded in the acquisitions completed in 1996. Effective July 1,
1996, the Company changed the estimated useful lives of certain intangibles
acquired in 1994, including goodwill and regulatory licenses issued by the FCC
from 40 years to 15 years for goodwill and from 40 years to 25 years for FCC
licenses. The impact of these changes was to increase amortization expense for
1996 by approximately $1.3 million.
 
     Interest and other income (expense) decreased approximately $0.9 million
from $0.3 million in 1995 to a loss of $0.6 million in 1996. The decrease is the
result of the recognition of the Company's share of losses of A+ Network (from
June 1996 through November 15, 1996, during which time the Company's investment
was being accounted for under the equity method) of $4.1 million, and the
Company's equity in the Solo America loss ($0.2 million). These losses were
partially offset by a gain recognized on the sale of equipment ($1.2 million)
and increased interest income reflecting higher cash balances in the first half
of 1996.
 
     Interest expense increased approximately $7.9 million from $12.5 million in
1995 to $20.4 million in 1996 primarily due to the Company's 10 3/8% senior
subordinated notes being outstanding all of 1996. Since net proceeds from the
subordinated notes offering were used partially to refinance existing debt, the
impact is to increase interest expense by the marginal increase in the interest
rate of the debt.
 
     During the fourth quarter of 1996, the Company recognized an extraordinary
charge of approximately $3.7 million to expense fees and cash payments incurred
in the tender and consent solicitation for the A+ Network 11 7/8% senior
subordinated notes (the "A+ Notes") outstanding.
 
     The Company's loss attributable to common stockholders increased
approximately $29.8 million from $20.1 million in 1995 to $49.9 million in 1996.
The increase in the loss attributable to common stockholders is primarily
attributable to increased depreciation and amortization expense and increased
interest costs in 1996. The Company's net losses are expected to continue for
additional periods in the future. In addition, the Page
 
                                      F-33
<PAGE>   176
 
America acquisition may result in increased net losses as a result of additional
depreciation and amortization and interest expense attributable to the Page
America transaction and borrowings to pay the cash portion of the purchase
price. In November 1996, the Company issued $39.9 million of Series A
Convertible Preferred Stock ("Series A Preferred") together with warrants to
acquire approximately 2.9 million shares of the Company's Common Stock with an
exercise price of $7.40 per share. The Series A Preferred bears dividends at 14%
of the stated value per year. Total dividends accrued but unpaid at December 31,
1996 were approximately $698,000. The total value allocated to the warrants,
$7.9 million or $2.70 per share, will be accreted over the term of the Series A
Preferred as preferred dividends. Since the issuance of the Series A Preferred,
accretion of the allocated value of the warrants was approximately $82,000.
 
YEAR ENDED DECEMBER 31, 1995 COMPARED WITH DECEMBER 31, 1994
 
     Net revenues increased approximately $44.4 million, or 87.2%, from $50.9
million in the year ended December 31, 1994 ("1994"), to $95.3 million for the
year ended December 31, 1995 ("1995"). The increase is attributable to greater
service revenues due to the growth of pagers in service from 755,547 at December
31, 1994 to 944,013 at December 31, 1995. The FirstPAGE and MetroPaging
acquisitions, completed on August 31, 1994 and November 29, 1994, respectively,
added approximately 420,000 pagers in service. Operations of FirstPAGE and
MetroPaging are included in the results of operations from their respective
acquisition dates. ARPU has declined from $10.53 in 1994 to $9.15 in 1995 due
primarily to the increase in the base of customers serviced through indirect
channels and, to a lesser extent, the inclusion of the operations of FirstPAGE
and MetroPaging. Declining ARPU during 1995 is generally offset by increased
sales of enhanced services including the Nationwide Network services. Product
sales increased $10.6 million from $8.1 million in 1994 to $18.7 million in 1995
largely due to the FirstPAGE and MetroPaging acquisitions, and increased as a
percentage of net revenues from 16.0% in 1994 to 19.6% in 1995 due to increased
sales to resellers and other indirect sales channels.
 
     Net book value of products sold increased approximately $8.5 million from
$7.0 million in 1994 to $15.5 million in 1995. The gross margin on products sold
increased from 14.5% in 1994 to 17.0% in 1995. Net book value of products sold
increased principally due to the increase in product sales, partially offset by
increased depreciation expense.
 
     Overall, the Company has experienced a decline in total average operating
expenses per unit in service (operating expenses per unit before depreciation
and amortization) from 1994 to 1995. Average monthly operating expenses per unit
decreased from $7.36 for 1994 to $6.71 for 1995. Each operating expense is
discussed separately below.
 
     Service, rent and maintenance expenses increased approximately $13.3
million from $14.0 million in 1994 to $27.3 million in 1995 and increased as a
percentage of net revenues from 27.5% in 1994 to 28.6% in 1995. The Company
estimates that this overall increase in service, rent and maintenance expenses
is primarily attributable to the acquisitions of FirstPAGE ($6.5 million) and
MetroPaging ($5.3 million) and, to a lesser extent, increased carrier line costs
paid to third party service providers ($0.8 million), increased transmitter site
rental costs associated with expanded system coverage ($0.4 million) and
increased personnel costs ($0.3 million). On a per-unit basis, monthly service,
rent and maintenance expenses declined from $2.97 in 1994 to $2.71 in 1995 as a
result of increased efficiencies due largely to the integration of the FirstPAGE
and MetroPaging operations.
 
     Selling and marketing expenses increased approximately $8.2 million from
$7.4 million in 1994 to $15.6 million in 1995 and increased as a percentage of
net revenues from 14.6% in 1994 to 16.4% in 1995. The Company estimates this
increase in selling and marketing expenses is primarily associated with the
acquisitions of FirstPAGE ($2.5 million) and MetroPaging ($4.2 million), and in
part due to increased personnel costs ($1.2 million) and travel expenses ($0.3
million). Additionally, the Company commenced operations in six new markets
during 1995 including Boston, Pittsburgh, Miami, San Diego, Phoenix and Las
Vegas. Monthly selling and marketing expenses per unit have declined from $1.57
in 1994 to $1.55 in 1995, due primarily to efficiencies gained by consolidating
the Company's sales force with those of FirstPAGE and
 
                                      F-34
<PAGE>   177
 
MetroPaging. Selling and marketing expenses may increase as a percentage of
revenue as the Company continues to increase markets and expand geographic
coverage.
 
     General and administrative expenses increased approximately $11.3 million
from $13.3 million in 1994 to $24.6 million in 1995 and decreased as a
percentage of net revenues from 26.2% in 1994 to 25.9% in 1995. The Company
estimates that this increase in general and administrative expenses is primarily
attributable to the acquisitions of FirstPAGE ($7.2 million) and MetroPaging
($4.9 million) from their respective acquisition dates, offset by synergies
resulting from the reduction of duplicative functions and lower personnel costs
($0.8 million). Monthly general and administrative expenses per unit have
declined from $2.82 in 1994 to $2.45 in 1995. General and administrative
expenses per unit should continue to decline as the Company realizes continued
benefits from the integration of its back-office operations and economies of
scale.
 
     In 1995, the Company recognized a charge for $2.0 million as a management
reorganization charge to accrue for severance and other compensation costs
associated with the replacement of the Company's Chairman of the Board and
resignation of its Chief Executive Officer. In addition, the Company instituted
a reduction-in-force whereby certain non-sales positions were eliminated.
Management estimates the reorganization and reduction-in-force will result in
approximately $1.0 million of savings in 1996.
 
     EBITDA increased approximately $11.6 million from $16.2 million in 1994 to
$27.8 million in 1995. As a percentage of net revenues, EBITDA decreased from
31.7% in 1994 to 29.1% in 1995.
 
     Depreciation and amortization increased approximately $17.7 million from
$13.8 million in 1994 to $31.5 million in 1995 and increased as a percentage of
net revenues from 27.2% to 33.1% for 1994 and 1995, respectively. The Company
estimates that the increase in total depreciation expense resulted from
depreciation on additional pagers in service ($5.8 million) and paging equipment
($2.1 million), other operating equipment ($1.2 million) and depreciation of
assets acquired in the FirstPAGE acquisition ($2.6 million) and MetroPaging
acquisition ($1.1 million). Amortization increased substantially during 1995 due
to the amortization of goodwill and other intangibles recorded in the
acquisitions of FirstPAGE ($3.2 million) and MetroPaging ($1.7 million).
Beginning in the quarter ended September 30, 1995, the Company began recording
all purchases of new pagers as a component of subscriber paging equipment.
Amounts previously classified as inventories in the prior year financial
statements have been reclassified to conform to the current period's
presentation. This resulted in an increase to depreciation expense of
approximately $2.7 million.
 
     Interest and other income increased approximately $0.1 million from $0.2
million in 1994 to $0.3 million in 1995. The increase is the result of interest
earned on cash balances, resulting from the completion of public offerings of
4.0 million shares of the Company's common stock and $150.0 million Senior
Subordinated Notes, net of amounts used to repay existing debt and other costs
largely offset by breakage fees of $1.7 million associated with the termination
of two interest rate swap agreements.
 
     Interest expense increased approximately $8.8 million from $3.7 million in
1994 to $12.5 million in 1995. Interest expense increased due to the completion
in October 1995 of the Company's public offering of senior subordinated notes
bearing interest at 10 3/8%, payable semiannually on April 1 and October 1, due
2007. This raised the Company's average level of debt outstanding and increased
the average interest rate in effect in 1995.
 
     During the fourth quarter of 1995, the Company recognized an extraordinary
charge of $2.7 million to expense unamortized debt financing costs and other
costs associated with the repayment of balances outstanding on its credit
agreement in October 1995.
 
     The Company's net loss increased approximately $17.7 million from $2.4
million in 1994 to $20.1 million in 1995.
 
INFLATION
 
     Inflation is not a material factor affecting the Company's business. Paging
system equipment and operating costs have not increased while pager costs have
declined significantly in recent years. This reduction
 
                                      F-35
<PAGE>   178
 
in costs has been reflected in lower prices charged to the Company's
subscribers. General operating expenses such as salaries, employee benefits and
occupancy costs are, however, subject to inflationary pressures.
 
NEW ACCOUNTING PRONOUNCEMENT
 
     On March 3, 1997, the Financial Accounting Standards Board released
Statement No. 128, "Earnings Per Share." Statement 128 requires dual
presentation of basic and diluted earnings per share on the face of the income
statement for all periods presented. Basic earnings per share excludes dilution
and is computed by dividing income available to common stockholders by the
weighted-average number of common shares outstanding for the period. Diluted
earnings per share reflects the potential dilution that could occur if
securities or other contracts to issue common stock were exercised or converted
into common stock or resulted in the issuance of common stock that then shared
in the earnings of the entity. Diluted earnings per share is computed similarly
to fully diluted earnings per share pursuant to Accounting Principles Bulletin
No. 15. Statement 128 is effective for fiscal years ending after December 15,
1997, and when adopted, it will require restatement of prior years' earnings per
share.
 
     Since the effect of outstanding options is antidilutive, they have been
excluded from the Company's computation of net loss per share. Accordingly,
management does not believe that Statement 128 will have an impact upon
historical net loss per share as reported.
 
LIQUIDITY AND CAPITAL RESOURCES
 
     The Company's operations require the availability of substantial funds to
finance the growth of its existing paging operations and customer base,
development and construction of future wireless communications networks,
expansion into new markets and the acquisition of other wireless communications
companies. Further cash requirements also include debt service, working capital
and general corporate requirements.
 
     The Company has financed its internal growth in 1996 through its operating
cash flow, the use of available cash and, to a limited extent, borrowings under
the Company's credit facility. Net cash provided by operating activities
increased from $14.0 million for the year ended December 31, 1995 to $15.6
million for the year ended December 31, 1996. Of the $125.0 million of A+ Notes
outstanding, the Company refinanced approximately $122.5 million under its
credit facility. Through the refinancing of the A+ Notes, the Company expects to
lower its overall interest costs in future periods. See Note 7 to the Company's
consolidated financial statements for a discussion of the Company's credit
facility and other indebtedness.
 
     At December 31, 1996, the Company had a deficit in working capital of
approximately $7.3 million. The Company has experienced such deficits in prior
years and such deficits are likely to continue. Pursuant to the Page America
acquisition, the Company will assume current liabilities of Page America. This
may result in a significant increase in the Company's working capital deficit.
The Company attempts, when possible, to finance its growth through operating
cash flow and available cash balances rather than incurring additional
indebtedness. As a result, purchases of noncurrent assets, including pagers and
other network and transmission equipment, may be financed with current
liabilities (e.g., accounts payable), causing a deficit in working capital. The
Company currently has sufficient borrowing capacity available under its credit
facility, discussed below, to fund the working capital deficit at December 31,
1996.
 
     Cash flows used in investing activities were primarily to fund purchases of
property and equipment and complete the acquisitions of Parkway, Satellite
Paging, Message Network and A+ Network. Capital expenditures were approximately
$62.1 million and $44.1 million for the years ended December 31, 1996 and 1995,
respectively. The Company experienced much greater capital expenditure
requirements in 1996 due to the completion of the Company's Nationwide Network,
the expansion and upgrading of the Company's management information, database
and customer service systems and increased pager placements. In June 1996, the
Company completed a cash offer for approximately 4.4 million shares of the
outstanding common stock of A+ Network for $91.8 million. In July and August
1996, the Company acquired Parkway and Satellite Paging and Message Network,
respectively. The acquisitions of Parkway and Satellite were financed primarily
with cash payments totaling approximately $45 million and the issuance of shares
of the Company's Common Stock.
 
                                      F-36
<PAGE>   179
 
     Cash flows provided by financing activities for the year ended December 31,
1996, included payments on long-term debt approximately $25.5 million.
Borrowings under the Company's credit facility increased by approximately $194.9
million primarily for the acquisitions of Parkway ($28 million), Satellite and
Message Network ($17 million) and the purchase of the A+ Notes ($122.5 million)
and other working capital requirements. Borrowings under the Company's credit
facility are expected to further increase to finance the cash portion of the
Page America acquisition ($25 million plus, at the Company's option, additional
cash in substitution for all or a portion of the consideration payable in
securities of the Company). In November 1996, the Company sold Series A
Preferred, bearing dividends at 14% of the stated value per year, to a group of
investors. Net proceeds were approximately $38.3 million. Dividends on the
Series A Preferred may be paid in either cash or additional shares of Series A
Preferred, at the Company's option. However, under certain circumstances, as
defined in the certificate of designation, the dividend rate may increase to 16%
and dividends must be paid in cash to the extent permitted by the terms of the
Company's debt agreements. Further, Metrocall is required to redeem all
outstanding shares of Series A Preferred (including dividend shares) in November
2008 unless the holders have previously converted such shares to Common Stock.
From the net proceeds of the Series A Preferred, the Company repaid $25 million
outstanding under the credit facility.
 
     Total capital expenditures during 1997 are estimated to be approximately
$60 million primarily for the acquisition of pagers, paging and transmission
equipment and information system enhancement. This estimate does not include the
cash consideration to be paid in the Page America acquisition, or the related
transaction costs, but does include estimated capital expenditures related to
the Page America assets after the acquisition. The Company expects that its
capital expenditures in 1997 will be financed through a combination of operating
cash flow and borrowings. Projected capital expenditures are subject to change
based on the Company's internal growth, general business and economic conditions
and competitive pressures. The Company has aggregate rental commitments under
operating leases of approximately $11.9 million, $9.5 million and $6.4 million
for the years ending December 31, 1997, 1998 and 1999, respectively. Future cash
requirements include debt service costs, primarily interest. Based on existing
debt at December 31, 1996, estimated interest payments, including fees, in 1997
are approximately $31.3 million. Principal payments due in 1997 are
approximately $0.7 million. The Company will complete the acquisition of Page
America Group, Inc. during 1997 which is discussed further below.
 
     In January 1996, the Company completed a management reorganization. Under
the reorganization, the Company's Chairman of the Board was replaced and the
Company's Chief Executive Officer resigned. Severance and other separation costs
for the former Chairman and former Chief Executive Officer were accrued and
recorded as a management reorganization charge in the accompanying consolidated
financial statements as of and for the year ended December 31, 1995.
Additionally, certain nonsales employees were terminated and related severance
costs were included in the management reorganization charge. Severance costs
included approximately $285,000 of compensation expense recognized upon amending
option agreements with certain former employees and the Company's former Chief
Executive Officer to increase vesting and exercise periods. As of December 31,
1996, the balance of accrued but unpaid severance costs included in the
accompanying balance sheet was approximately $544,000.
 
     In connection with the acquisition of A+ Network, stockholders of A+
Network received approximately 8.1 million indexed Variable Common Rights
("VCRs"). Each VCR entitles the holder to receive a payment of up to $5.00 in
either the Company's Common Stock or cash, at the Company's option, if the
market value, as defined, of the Company's Common Stock at November 15, 1997, is
less than a specified target price. The target price will be adjusted downward,
but not upward, based on changes in an index composed of the average closing bid
prices of three other companies in the paging industry since the announcement of
the merger. If changes in the index cause the target price to be lower than a
floor price of $16.10 (which is not indexed and therefore not adjusted
downward), the VCR payment will be zero without regard to the trading value of
the Company's Common Stock. At November 15, 1996, the date the merger was
completed, and December 31, 1996, the target price was below the fixed floor
price of $16.10 per share resulting in no current obligation under the VCRs.
While the Company currently expects to incur no future obligations related to
the VCRs, there can be no assurance that future changes in the Company's stock
price or in the industry index, as defined in the merger agreement, will not
create an obligation for the Company in the future.
 
                                      F-37
<PAGE>   180
 
SENIOR SECURED CREDIT FACILITY
 
     On September 20, 1996, the Company amended and restated the loan agreement
governing the Company's existing credit facility. Subject to certain conditions
set forth in the new agreement, the Company may borrow up to $350 million under
two loan facilities. The first facility ("Facility A") is a $225 million
reducing revolving credit facility and the second ("Facility B") is a $125
million reducing credit facility (together Facility A and Facility B are
referred to as the "New Credit Facility"). The New Credit Facility has a term of
eight years and is secured by substantially all the assets of the Company.
Required quarterly principal repayments begin on March 31, 2000 and continue
through December 31, 2004. At December 31, 1996, a total of $169.9 million was
outstanding under the New Credit Facility. At January 1, 1997, total additional
borrowings available to the Company under the credit facility were approximately
$46.5 million. On January 14, 1997, the Company increased its borrowings under
the credit facility by $10 million primarily to fund working capital
requirements.
 
     The New Credit Facility contains various covenants that, among other
restrictions, require the Company to maintain certain financial ratios,
including total debt to annualized operating cash flow (not to exceed 6.0 to 1.0
from January 1, 1997 to December 31, 1997, and declining thereafter), senior
debt to annualized operating cash flow, annualized operating cash flow to pro
forma debt service, total sources of cash to total uses of cash, and operating
cash flow to interest expense (in each case, as such terms are defined in the
agreement relating to the New Credit Facility). The covenants also limit
additional indebtedness and future mergers and acquisitions (other than the
pending transaction with Page America discussed below) without the approval of
the lenders, and restrict the payment of cash dividends and other stockholders
distributions by Metrocall during the term of the New Credit Facility. The New
Credit Facility also prohibits certain changes in ownership control of
Metrocall, as defined, during the term of the New Credit Facility.
 
PENDING ACQUISITION
 
     On April 22, 1996, the Company signed a definitive acquisition agreement
(the "Page America Agreement") with Page America Group, Inc. of Hackensack, New
Jersey ("Page America"). The Page America Agreement was subsequently amended on
January 30, 1997, (the "Amended Page America Agreement"). Pursuant to the
Amended Page America Agreement, (i) Metrocall will acquire substantially all of
the assets and assume substantially all of Page America's accounts payable and
certain obligations under various office and equipment leases and (ii) Page
America will receive (a) $25 million in cash, (b) 1,500 shares of Series B
Preferred Stock having a stated value of $15 million, (c) 762,960 shares of the
Company's Common Stock and (d) additional shares of the Company's Common Stock
or other equity securities (CSE Preferred Stock, see Note 8 to the Company's
Consolidated Financial Statements) having a value equal to $15 million, subject
to adjustment based on certain changes in Page America's working capital and
service revenues. Under the terms of the Page America Agreement, the Company has
retained the option to substitute cash at closing for all or a portion of the
equity securities that are part of the consideration. Consummation of the Page
America acquisition is subject to a number of conditions including, but not
limited to, receipt of all necessary regulatory approvals and approval by the
Page America stockholders. There can be no assurance that such approvals will be
obtained. The pending transaction, if consummated, will be accounted for as a
purchase for financial reporting purposes. The Company expects to finance the
cash portion of the purchase price with borrowings under its credit facility by
leveraging Page America's operating cash flow as permitted under the agreement
governing the New Credit Facility.
 
ADDITIONAL FACTORS AFFECTING FUTURE OPERATING RESULTS AND FINANCIAL CONDITION
 
     The ability of the Company to meet its debt service and other obligations
will be dependent upon the future performance of the Company and its cash flows
from operations, which will be subject to financial, business and other factors,
certain of which are beyond its control, such as prevailing economic conditions.
Management believes that funds generated from the Company's operations and funds
available under its credit facility will be sufficient to meet projected capital
expenditures and debt service requirements and to fund the Company's operations
for the foreseeable future. Although management has no further obligation to do
so (other than Page America discussed above), it plans to continue to expand its
geographic service areas
 
                                      F-38
<PAGE>   181
 
through internal growth and will continue to evaluate potential strategic
acquisition targets in the future which may result in substantial capital
requirements for which additional financing may be required. No assurance can be
given that such additional financing would be available on terms satisfactory to
the Company. Additionally, the following important factors, among others, could
cause the Company's operating results and financial condition to differ
materially from those indicated or suggested by forward looking statements made
in this annual report.
 
  Substantial Indebtedness
 
     At December 31, 1996, the Company had outstanding approximately $327.8
million in long term debt consisting of bank loans, senior subordinated notes,
mortgage indebtedness and capital leases, and expects to incur additional
indebtedness in connection with the Page America acquisition. The Company
increased its borrowings outstanding under its credit facility by $10.0 million
in January 1997. Additionally, the Company expects to incur additional
indebtedness (in the form of draws under the Company's senior secured credit
facility) to meet working capital needs and other purposes. This substantial
indebtedness, along with the net losses and working capital deficits sustained
by the Company in recent periods, will have consequences for the Company,
including the following: (i) the ability of the Company to obtain additional
financing for working capital, capital expenditures, debt service requirements
or other purposes may be impaired; (ii) a substantial portion of the Company's
cash flow from operations will be required to be dedicated to the payment of the
Company's interest expense; (iii) indebtedness under the New Credit Facility
bears interest at floating rates, which will cause the Company to be vulnerable
to increases in interest rates; (iv) the Company may be more highly leveraged
than companies with which it competes, which may place it at a competitive
disadvantage; and (v) the Company may be more vulnerable in the event of a
downturn in its business or in general economic conditions. In addition, the
ability of the Company to access borrowings under its credit facility and to
meet its debt service and other obligations (including compliance with financial
covenants) will be dependent upon the future performance of the Company and its
cash flows from operations, which will be subject to financial, business and
other factors, certain of which are beyond its control, such as prevailing
economic conditions. No assurance can be given that, in the event the Company
were to require additional financing, such additional financing would be
available on terms permitted by agreements relating to existing indebtedness or
otherwise satisfactory to Metrocall.
 
  Possible Impact of Competition and Technological Change
 
     The Company faces competition from other paging companies in all markets in
which it operates. The wireless communications industry is a highly competitive
industry, with price being one of the primary means of differentiation among
providers of numeric messaging services which account for the substantial
majority of the Company's revenues. Companies in the industry also compete on
the basis of coverage area, enhanced services, transmission quality, system
reliability and customer service. Certain of Metrocall's competitors possess
greater financial, technical, marketing and other resources than Metrocall. In
addition, other entities offering wireless two-way communications technology,
including cellular telephone, specialized mobile radio services and personal
communications services, compete with the paging services provided by Metrocall.
There can be no assurance that additional competitors will not enter markets
served by Metrocall or that Metrocall will be able to compete successfully. In
this regard, certain long distance carriers have or have announced their
intention to market paging services jointly with other telecommunications
services.
 
     The wireless communications industry is characterized by rapid
technological change. Future technological advances in the wireless
communications industry could create new services or products competitive with
the paging and wireless messaging services provided or to be developed by
Metrocall. Recent and proposed regulatory changes by the Federal Communications
Commission ("FCC") are aimed at encouraging such services and products.
 
     In particular, in 1994, the FCC began auctioning licenses for new personal
communications services ("PCS"). The FCC's rules also provide for the private
use of PCS spectrum on an unlicensed basis. PCS will involve a network of small,
low-powered transceivers placed throughout a neighborhood, business complex,
community or metropolitan area to provide customers with mobile voice and data
communications. There are
 
                                      F-39
<PAGE>   182
 
two types of PCS, narrowband and broadband. Narrowband PCS is expected to
provide enhanced or advanced paging and messaging capabilities, such as
"acknowledgment paging" or "talk-back" paging. Several PCS systems are currently
operational. Additionally, other existing or prospective radio services have
potential to compete with Metrocall. For example, the FCC has authorized
non-geostationary mobile satellite service systems in several frequency bands,
and has initiated proceedings to consider making additional licenses in some of
those bands available. Licensees of those satellite services (some of whom have
already launched satellites) are permitted to offer signaling and other mobile
services that could compete with terrestrial paging companies. A recent FCC
decision will allow land mobile licensees in the 220-222 MHz band to offer
commercial paging services. The FCC has also initiated a rule making proceeding
proposing to allow Multiple Address Systems, a fixed microwave service in
various 900 MHz frequency bands, to offer mobile services. Any of these services
may compete directly or indirectly with Metrocall.
 
     Moreover, changes in technology could lower the cost of competitive
services and products to a level where Metrocall's services and products would
become less competitive or to where Metrocall would be required to reduce the
prices of its services and products. There can be no assurance that Metrocall
will be able to develop or introduce new services and products to remain
competitive or that Metrocall will not be adversely affected in the event of
such technological developments.
 
     Technological changes also may affect the value of the pagers owned by
Metrocall and leased to its subscribers. If Metrocall's subscribers requested
more technologically advanced pagers, Metrocall could incur additional capital
expenditures if it were required to replace pagers to its subscribers.
 
  History of Net Losses
 
     Metrocall has sustained net losses of $2.4 million, $20.1 million and $49.1
million for the years ended December 31, 1994, 1995 and 1996. No assurance can
be given that losses can be reversed in the future. In addition, at December 31,
1996, Metrocall's accumulated deficit was $96.8 million and Metrocall had a
deficit in working capital of $7.3 million. Metrocall's business requires
substantial funds for capital expenditures and acquisitions that result in
significant depreciation and amortization charges. Additionally, substantial
levels of borrowing, which will result in significant interest expense, are
expected to be outstanding in the foreseeable future. Accordingly, net losses
are expected to continue to be incurred in the future. There can be no assurance
that Metrocall will be able to operate profitably at any time in the future.
 
  Litigation
 
     In April 1996, the Company entered into an agreement to purchase certain of
the assets of Source One Wireless, Inc. ("Source One") and placed $1 million
cash in escrow. On June 26, 1996, the Company advised Source One that Source One
had failed to meet certain conditions to completion of the transaction and
terminated the agreement. On September 20, 1996, Source One filed an action in
the Circuit Court of Cook County, Illinois claiming that the Company had
breached the agreement and seeking specific performance of the purchase
agreement or unspecified damages in excess of $80 million. The Company intends
to vigorously defend the claims in this action and believes it has meritorious
defenses to this action.
 
  Subscriber Turnover
 
     The results of operations of paging service providers, such as Metrocall,
can be significantly affected by subscriber cancellations and by subscribers who
switch their service to other carriers. Metrocall's average monthly subscriber
turnover rate for the year ended December 31, 1996 was approximately 2.1%. In
order to realize net growth in subscribers, disconnected subscribers must be
replaced and new subscribers must be added. The sales and marketing costs
associated with attracting new subscribers are substantial relative to the costs
of providing service to existing customers. Because Metrocall's business is
characterized by high fixed costs, disconnections directly and adversely affect
Metrocall's results of operations. An increase in its subscriber cancellation
rate may adversely affect Metrocall's results of operations.
 
                                      F-40
<PAGE>   183
 
  Potential for Change in Regulatory Environment
 
     Metrocall's paging operations are subject to regulation by the FCC and, to
a lesser extent, by various state regulatory agencies. There can be no assurance
that those agencies will not adopt regulations or take actions that would have a
material adverse effect on the business of Metrocall. Changes in regulation of
Metrocall's paging business or the allocation of radio spectrum for services
that compete with Metrocall's business could adversely affect Metrocall's
results of operations. For example, the FCC is currently engaged in a rule
making proceeding whereby it proposes to issue paging licenses on a wide-area
basis by competitive bidding. Although, Metrocall believes that the proposed
rule changes may simplify Metrocall's regulatory compliance burdens,
particularly regarding adding or relocating transmitter sites, those rule
changes may also increase Metrocall's costs of obtaining paging licenses.
 
  Intangible Assets
 
     Intangible assets, net of accumulated amortization, increased from
approximately $129.1 million in 1995 to approximately $452.6 million in 1996
primarily as a result of the Company's 1996 acquisitions of Parkway, Satellite,
Message Network and A+ Network. At December 31, 1996, the Company's total assets
of approximately $651.5 million included net intangible assets of approximately
$452.6 million. Intangible assets include state certificates and FCC licenses,
customer lists, debt financing costs, goodwill and certain other intangibles.
The Company will record, for financial reporting purposes, additional intangible
assets in connection with its acquisition of the assets of Page America in 1997.
Long-lived assets and identifiable intangibles to be held and used are reviewed
for impairment whenever events or changes in circumstances indicate that the
carrying amount should be addressed. Impairment is measured by comparing the
book value to the estimated undiscounted future cash flows expected to result
from use of the assets and their eventual disposition. The Company's estimates
of anticipated gross revenues, the remaining estimated lives of tangible and
intangible assets, or both, could be reduced significantly in the future due to
changes in technology, regulation, available financing and competitive pressures
in any of the Company's individual markets. As a result, the carrying amount of
long-lived assets and intangible assets including goodwill could be reduced
materially in the future.
 
                                      F-41
<PAGE>   184
 
                        METROCALL, INC. AND SUBSIDIARIES
 
                     CONDENSED CONSOLIDATED BALANCE SHEETS
             (IN THOUSANDS, EXCEPT SHARE AND PER SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                                                                DECEMBER 31,     JUNE 30,
                                                                                    1996           1997
                                                                                ------------    -----------
                                                                                                (UNAUDITED)
<S>                                                                             <C>             <C>
                                    ASSETS
CURRENT ASSETS:
  Cash and cash equivalents..................................................     $ 10,917       $  20,749
  Accounts receivable, less allowance for doubtful accounts of $2,961 as of
    December 31, 1996 and $3,031 as of June 30, 1997.........................       18,223          24,041
  Prepaid expenses and other current assets..................................        5,681           7,396
                                                                                  --------        --------
         Total current assets................................................       34,821          52,186
                                                                                  --------        --------
PROPERTY AND EQUIPMENT:
  Land, buildings and leasehold improvements.................................       12,694          15,799
  Furniture, office equipment and vehicles...................................       29,742          36,279
  Paging and plant equipment.................................................      188,236         195,369
  Less -- Accumulated depreciation and amortization..........................      (77,260)        (95,616)
                                                                                  --------        --------
                                                                                   153,412         151,831
                                                                                  --------        --------
INTANGIBLE ASSETS, net of accumulated amortization of approximately $20,926
  as of December 31, 1996 and $38,258 as of June 30, 1997....................      452,639         440,356
OTHER ASSETS.................................................................        3,023           2,355
                                                                                  --------        --------
TOTAL ASSETS.................................................................     $643,895       $ 646,728
                                                                                  ========        ========
 
                   LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Current maturities of long-term debt.......................................     $    700       $     965
  Accounts payable...........................................................       17,194          20,246
  Accrued expenses and other current liabilities.............................       18,940          18,693
  Deferred revenues and subscriber deposits..................................        5,254           6,457
                                                                                  --------        --------
         Total current liabilities...........................................       42,088          46,361
                                                                                  --------        --------
CAPITAL LEASE OBLIGATIONS, net of current portion............................        3,244           4,717
CREDIT FACILITY AND OTHER LONG-TERM DEBT, less current maturities............      171,314         191,037
SENIOR SUBORDINATED NOTES, due 2005 and 2007.................................      152,534         152,534
DEFERRED INCOME TAX LIABILITY................................................       76,687          75,249
MINORITY INTEREST IN PARTNERSHIP.............................................          499             511
                                                                                  --------        --------
         Total liabilities...................................................      446,366         470,409
                                                                                  --------        --------
SERIES A CONVERTIBLE PREFERRED STOCK, 14% cumulative; par value $.01 per
  share; 810,000 shares authorized; 159,600 shares issued and outstanding as
  of December 31, 1996 and June 30, 1997, and a liquidation preference of
  $40,598 and $43,440 at December 31, 1996 and June 30, 1997, respectively...       31,231          34,401
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
  Preferred stock, par value $.01 per share; authorized 1,000,000 shares;
    none issued and outstanding..............................................           --              --
  Common stock, par value $.01 per share; authorized 60,000,000 shares;
    24,521,135 and 25,074,001 shares issued and outstanding as of December
    31, 1996 and June 30, 1997, respectively.................................          245             251
  Additional paid-in capital.................................................      262,827         265,662
  Accumulated deficit........................................................      (96,774)       (123,995)
                                                                                  --------        --------
         Total stockholders' equity..........................................      166,298         141,918
                                                                                  --------        --------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY...................................     $643,895       $ 646,728
                                                                                  ========        ========
</TABLE>
 
           See notes to condensed consolidated financial statements.
 
                                      F-42
<PAGE>   185
 
                        METROCALL, INC. AND SUBSIDIARIES
                CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
             (IN THOUSANDS, EXCEPT SHARE AND PER SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                                                           THREE MONTHS ENDED
                                                                                JUNE 30,
                                                                        ------------------------
                                                                           1996          1997
                                                                        ----------    ----------
                                                                              (UNAUDITED)
<S>                                                                     <C>           <C>
REVENUES:
  Service, rent and maintenance revenues.............................   $   25,079    $   60,021
  Product sales......................................................        6,969        10,276
                                                                        ----------    ----------
          Total revenues.............................................       32,048        70,297
  Net book value of products sold....................................       (5,910)       (7,525)
                                                                        ----------    ----------
                                                                            26,138        62,772
                                                                        ----------    ----------
OPERATING EXPENSES:
  Service, rent and maintenance expenses.............................        8,305        18,189
  Selling and marketing..............................................        5,399        13,001
  General and administrative.........................................        6,920        14,693
  Depreciation and amortization......................................       13,607        22,831
                                                                        ----------    ----------
                                                                            34,231        68,714
                                                                        ----------    ----------
          Loss from operations.......................................       (8,093)       (5,942)
INTEREST EXPENSE.....................................................       (4,191)       (7,867)
INTEREST AND OTHER INCOME............................................        1,157           143
                                                                        ----------    ----------
LOSS BEFORE INCOME TAX BENEFIT.......................................      (11,127)      (13,666)
INCOME TAX BENEFIT...................................................          172         1,362
                                                                        ----------    ----------
          Net loss...................................................      (10,955)      (12,304)
PREFERRED DIVIDENDS..................................................           --        (1,609)
                                                                        ----------    ----------
          Loss attributable to common stockholders...................   $  (10,955)   $  (13,913)
                                                                         =========     =========
Loss per share attributable to common stockholders...................   $    (0.75)   $    (0.55)
                                                                         =========     =========
Weighted-average common shares outstanding...........................   14,626,255    25,074,059
                                                                         =========     =========
</TABLE>
 
           See notes to condensed consolidated financial statements.
 
                                      F-43
<PAGE>   186
 
                                METROCALL, INC.
                CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
             (IN THOUSANDS, EXCEPT SHARE AND PER SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                                                            SIX MONTHS ENDED
                                                                                JUNE 30,
                                                                        ------------------------
                                                                           1996          1997
                                                                        ----------    ----------
                                                                              (UNAUDITED)
<S>                                                                     <C>           <C>
REVENUES:
  Service, rent and maintenance revenues.............................   $   48,829    $  118,537
  Product sales......................................................       13,158        18,513
                                                                        ----------    ----------
          Total revenues.............................................       61,987       137,050
  Net book value of products sold....................................      (10,560)      (13,682)
                                                                        ----------    ----------
                                                                            51,427       123,368
                                                                        ----------    ----------
OPERATING EXPENSES:
  Service, rent and maintenance expenses.............................       16,498        35,440
  Selling and marketing..............................................        9,992        24,913
  General and administrative.........................................       12,702        29,836
  Depreciation and amortization......................................       25,098        43,549
                                                                        ----------    ----------
                                                                            64,290       133,738
                                                                        ----------    ----------
          Loss from operations.......................................      (12,863)      (10,370)
INTEREST EXPENSE.....................................................       (8,401)      (15,907)
INTEREST AND OTHER INCOME............................................        2,511            60
                                                                        ----------    ----------
LOSS BEFORE INCOME TAX BENEFIT.......................................      (18,753)      (26,217)
INCOME TAX BENEFIT...................................................          107         2,165
                                                                        ----------    ----------
          Net loss...................................................      (18,646)      (24,052)
                                                                        ----------    ----------
PREFERRED DIVIDENDS..................................................           --        (3,169)
                                                                        ----------    ----------
          Loss attributable to common stockholders...................   $  (18,646)   $  (27,221)
                                                                         =========     =========
          Loss per share attributable to common stockholders.........   $    (1.27)   $    (1.09)
                                                                         =========     =========
Weighted-average common shares outstanding...........................   14,626,255    24,977,724
                                                                         =========     =========
</TABLE>
 
           See notes to condensed consolidated financial statements.
 
                                      F-44
<PAGE>   187
 
                        METROCALL, INC. AND SUBSIDIARIES
 
            CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
                     FOR THE SIX MONTHS ENDED JUNE 30, 1997
                    (IN THOUSANDS, EXCEPT SHARE INFORMATION)
 
<TABLE>
<CAPTION>
                                                  COMMON STOCK
                                              --------------------    ADDITIONAL
                                                SHARES        PAR      PAID-IN     ACCUMULATED
                                              OUTSTANDING    VALUE     CAPITAL      DEFICIT       TOTAL
                                              -----------    -----    ---------    ----------    --------
<S>                                           <C>            <C>      <C>          <C>           <C>
BALANCE, December 31, 1996.................    24,521,135    $ 245    $ 262,827    $  (96,774)   $166,298
Issuance of shares in employee stock
  purchase plan............................        34,770        1          143            --         144
Adjustment to consideration for 1996
  acquisition..............................        21,921       --         (209)           --        (209)
Issuance of common stock in the acquisition
  of Radio and Communications Consultants,
  Inc. and Advanced Cellular Telephone,
  Inc......................................       494,279        5        2,899            --       2,904
Issuance of shares under option
  agreement................................         1,896       --            2            --           2
Preferred dividends........................            --       --           --        (3,169)     (3,169)
Net loss...................................            --       --           --       (24,052)    (24,052)
                                              -----------    -----    ---------    ----------    --------
BALANCE, June 30, 1997 (unaudited).........    25,074,001    $ 251    $ 265,662    $ (123,995)   $141,918
                                                =========     ====     ========     =========    ========
</TABLE>
 
           See notes to condensed consolidated financial statements.
 
                                      F-45
<PAGE>   188
 
                        METROCALL, INC. AND SUBSIDIARIES
 
                CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                             SIX MONTHS ENDED
                                                                                 JUNE 30,
                                                                           --------------------
                                                                             1996        1997
                                                                           --------    --------
                                                                               (UNAUDITED)
<S>                                                                        <C>         <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net loss..............................................................   $(18,646)   $(24,052)
  Adjustments to reconcile net loss to net cash provided by operating
     activities-- Depreciation and amortization.........................     25,098      43,549
     Amortization of debt financing costs...............................        176         498
     Decrease in deferred income taxes..................................       (343)     (2,692)
     Write-off of deferred acquisition costs............................        388          --
     Equity in loss of A+ Network, Inc. ................................        153          --
  Cash provided by (used in) changes in assets and liabilities, net of
     effect of acquisitions and dispositions:
     Accounts receivable................................................     (1,002)     (6,566)
     Prepaid expenses and other current assets..........................       (113)     (1,016)
     Accounts payable...................................................      8,068       3,196
     Deferred revenues and subscriber deposits..........................        809       1,679
     Other current liabilities..........................................       (665)       (298)
                                                                           --------    --------
          Net cash provided by operating activities.....................     13,923      14,298
                                                                           --------    --------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Cash paid for acquisitions, net of cash acquired......................         --        (798)
  Proceeds from sale of telemessaging operations........................         --      10,300
  Purchases of property and equipment, net..............................    (39,065)    (32,501)
  Additions to intangibles..............................................    (35,265)       (678)
  Equity investment in A+ Network, Inc. ................................    (13,671)         --
  Other.................................................................          3        (297)
                                                                           --------    --------
          Net cash used in investing activities.........................    (87,998)    (23,974)
                                                                           --------    --------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from long-term debt..........................................         --      20,000
  Principal payments on long-term debt..................................       (122)       (650)
  Net proceeds from issuance of common stock............................         --         146
  Increase in minority interest in partnership..........................         --          12
                                                                           --------    --------
          Net cash (used in) provided by financing activities...........       (122)     19,508
                                                                           --------    --------
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS....................    (74,197)      9,832
CASH AND CASH EQUIVALENTS, beginning of period..........................    123,574      10,917
                                                                           --------    --------
CASH AND CASH EQUIVALENTS, end of period................................   $ 49,377    $ 20,749
                                                                           ========    ========
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
  Cash payments for interest............................................   $  7,956    $ 13,024
  Cash payments for income taxes........................................   $    236    $    527
</TABLE>
 
           See notes to condensed consolidated financial statements.
 
                                      F-46
<PAGE>   189
 
                                METROCALL, INC.
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 JUNE 30, 1997
 
1.  ORGANIZATION AND RISK FACTORS
 
     Metrocall, Inc. ("Metrocall" or the "Company"), provides local, regional
and nationwide paging and other wireless messaging services. The Company's
selling efforts are concentrated in 32 markets in five operating regions: (i)
the Northeast (Massachusetts through Delaware), (ii) the Mid-Atlantic (Maryland,
Virginia and the Washington, D. C. metropolitan area), (iii) the Southeast
(including Virginia, the Carolinas, Georgia, Florida, Alabama, Louisiana,
Mississippi and Tennessee), (iv) the Southwest (primarily Texas) and (v) the
West (primarily California, Nevada and Arizona). Through its Nationwide Network,
the Company provides coverage to over 1,000 cities representing the top 100
Standard Metropolitan Statistical Areas.
 
  Risks and Other Important Factors
 
     The Company sustained net losses of $2.4 million, $20.1 million, $49.1
million, and $24.1 million for each of the years ended December 31, 1994, 1995,
1996 and the six months ended June 30, 1997, respectively. The Company's loss
from operations for the six months ended June 30, 1997 was $10.4 million. In
addition, at June 30, 1997, the Company had an accumulated deficit of
approximately $124.0 million. The Company's losses from operations and its net
losses are expected to continue for additional periods in the future. There can
be no assurance that the Company's operations will become profitable.
 
     The Company's operations require the availability of substantial funds to
finance the maintenance and growth of its existing paging operations and
customer base, development and construction of future wireless communications
networks, expansion into new markets, and the acquisition of other wireless
communications companies. At June 30, 1997, the Company had incurred
approximately $349.3 million in long-term debt and capital leases. Amounts
available under the Company's credit facility are subject to certain financial
covenants and other restrictions such that as of June 30, 1997, approximately
$76.8 million of additional borrowings were available to the Company under its
credit facility. On July 1, 1997, the Company incurred additional borrowings of
$26.0 million in the Page America transaction discussed in Note 9. The Company's
ability to borrow additional amounts in the future is dependent on its ability
to comply with the provisions of its credit facility.
 
     The Company is also subject to certain additional risks and uncertainties
including, but not limited to, changes in technology, business integration,
competition, regulatory, legal and subscriber turnover.
 
2.  BASIS OF PRESENTATION
 
     The condensed consolidated financial statements included herein have been
prepared by the Company, without audit, pursuant to the rules and regulations of
the Securities and Exchange Commission ("SEC") and include, in the opinion of
management, all adjustments, consisting of normal recurring adjustments,
necessary for a fair presentation of interim period results. Certain information
and footnote disclosures normally included in financial statements prepared in
accordance with generally accepted accounting principles have been condensed or
omitted pursuant to such rules and regulations. The Company believes, however,
that its disclosures are adequate to make the information presented not
misleading. These condensed consolidated financial statements should be read in
conjunction with the consolidated financial statements and notes thereto
included in the Company's 1996 Annual Report on Form 10-K, as amended. The
results of operations for the three and six-month periods ended June 30, 1997,
are not necessarily indicative of the results to be expected for the full year.
 
                                      F-47
<PAGE>   190
 
                                METROCALL, INC.
 
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
3.  SIGNIFICANT ACCOUNTING POLICIES
 
  Use of Estimates in the Preparation of Financial Statements
 
     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
  Revenue Recognition
 
     The Company recognizes revenue under service, rental and maintenance
agreements with customers as the related services are performed. Sales of
equipment are recognized upon delivery.
 
  Cash and Cash Equivalents
 
     Cash and cash equivalents include short-term, highly liquid investments
purchased with original maturities of three months or less.
 
  Property and Equipment
 
     Property and equipment are carried at cost. Depreciation is computed using
the straight-line method over the following estimated useful lives.
 
<TABLE>
<CAPTION>
                                                                               YEARS
                                                                               -----
        <S>                                                                    <C>
        Buildings and leasehold improvements................................   10-31
        Furniture and office equipment......................................   5-10
        Vehicles............................................................    3-5
        Subscriber paging equipment.........................................    3-5
        Transmission and plant equipment....................................   5-12
</TABLE>
 
     The net book value of lost pagers is charged to depreciation expense. New
pagers are depreciated using the half-year convention upon acquisition.
Betterments to acquired pagers are charged to depreciation expense.
 
  Long-Lived Assets
 
     Long-lived assets and identifiable intangibles to be held and used are
reviewed for impairment whenever events or changes in circumstances indicate
that the carrying amount should be addressed. Impairment is measured by
comparing the book value to the estimated undiscounted future cash flows
expected to result from use of the assets and their eventual disposition. At
June 30, 1997, the market value of the Company's common stock was $4.50 per
share and the net book value was $5.66 per share. However, the Company has
determined that there has been no permanent impairment in the carrying value of
long-lived assets reflected in the accompanying balance sheet.
 
     Effective July 1, 1996, the Company changed the estimated useful lives of
certain intangibles acquired in 1994, including goodwill and regulatory licenses
issued by the Federal Communications Commission ("FCC") recorded in the
acquisitions of FirstPAGE USA, Inc. and MetroPaging, Inc. from 40 years to 15
years for goodwill and from 40 years to 25 years for FCC licenses. The impact of
these changes was to increase amortization expense for the three and six-month
periods ended June 30, 1997 by approximately $650,000 and $1.3 million,
respectively.
 
                                      F-48
<PAGE>   191
 
                                METROCALL, INC.
 
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
3.  SIGNIFICANT ACCOUNTING POLICIES -- (CONTINUED)
  Reclassifications
 
     Certain amounts in the prior period's consolidated financial statements
have been reclassified to conform with the current period's presentation.
 
4.  LOSS PER SHARE ATTRIBUTABLE TO COMMON STOCKHOLDERS
 
     Loss per share attributable to common stockholders for the three and
six-month periods ended June 30, 1996 and 1997, is based upon the
weighted-average number of common equivalent shares outstanding during the
period. The effect of outstanding options and warrants on loss per share
attributable to common stockholders for the three and six-month periods ended
June 30, 1996 and 1997, is not included because such options and warrants would
be antidilutive.
 
  New Accounting Pronouncement
 
     On March 3, 1997, the Financial Accounting Standards Board released
Statement No. 128, "Earnings Per Share." Statement 128 requires dual
presentation of basic and diluted earnings per share on the face of the income
statement for all periods presented. Basic earnings per share excludes dilution
and is computed by dividing income available to common stockholders by the
weighted-average number of common shares outstanding for the period. Diluted
earnings per share reflects the potential dilution that could occur if
securities or other contracts to issue common stock were exercised or converted
into common stock or resulted in the issuance of common stock that then shared
in the earnings of the entity. Diluted earnings per share is computed similarly
to fully diluted earnings per share pursuant to Accounting Principles Bulletin
No. 15. Statement 128 is effective for reporting periods ending after December
15, 1997, and when adopted, it will require restatement of prior periods'
earnings per share.
 
     Since the effect of outstanding options and warrants is antidilutive, they
have been excluded from the Company's computation of net loss per share.
Accordingly, management does not believe that Statement 128 will have an impact
upon historical net loss per share as reported.
 
5.  ACQUISITION
 
     On February 5, 1997, the Company acquired 100% of the outstanding common
stock of Radio and Communications Consultants, Inc. and Advanced Cellular
Telephone, Inc. (collectively, "RCC") by means of a merger of Metrocall of
Shreveport, Inc., a wholly owned subsidiary of Metrocall formed to effect the
merger with RCC. The merger was financed through the issuance of 494,279 shares
of the Company's common stock, approximately $800,000 in cash and assumed
liabilities of approximately $200,000. The Company also recorded a deferred tax
liability of approximately $1.3 million in connection with this transaction. The
RCC acquisition has been accounted for as a purchase for financial accounting
purposes.
 
6.  STOCK AND STOCK RIGHTS
 
  Capital Stock
 
     The authorized capital stock of Metrocall consists of 60,000,000 shares of
common stock, par value $.01 per share and 1,000,000 shares of preferred stock,
par value $0.01 per share, of which 810,000 shares have been designated as
Series A Convertible Preferred Stock and 9,000 shares have been designated
Series B Convertible Preferred Stock ("Series B Preferred Stock").
 
                                      F-49
<PAGE>   192
 
                                METROCALL, INC.
 
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
6.  STOCK AND STOCK RIGHTS -- (CONTINUED)
  Series A Preferred
 
     On November 15, 1996, the Company issued 159,600 shares of Series A
Convertible Preferred Stock ("Series A Preferred"), together with warrants,
discussed below, for $250 per share or $39.9 million. Each share of Series A
Preferred has a stated value of $250 per share and has a liquidation preference
over shares of the Company's common stock equal to the stated value. The Series
A Preferred carries a dividend of 14% of the stated value per year, payable
semiannually on May 15 and November 15 in cash or in additional shares of Series
A Preferred, at the Company's option. Preferred dividends accrued for the three
and six-month periods ended June 30, 1997 were approximately $1.4 million and
$2.8 million, respectively. The payment of dividends due May 15, 1997 was made
in 11,172 additional Series A Preferred shares.
 
     In connection with the Series A Preferred, the Company issued warrants to
purchase the Company's common stock. Each warrant represents the right of the
holder to purchase 18.266 shares of common stock or an aggregate of 2,915,254
shares. The exercise price is $7.40 per share. The warrants expire November 15,
2001. The total value allocated to the warrants for financial reporting
purposes, $7.9 million or $2.70 per share, is being accreted over the term of
the Series A Preferred as preferred dividends or approximately $164,000 and
$328,000 for the three and six-month periods ended June 30, 1997, respectively.
 
  Series B Preferred Stock
 
     In connection with the Page America transaction (see Note 9), the Board of
Directors authorized the designation of 9,000 shares of preferred stock as
Series B Preferred Stock. The Company issued 1,500 shares of Series B Preferred
Stock pursuant to the Amended Page America Agreement. Each share of Series B
Preferred Stock has a stated value of $10,000 per share and a liquidation
preference, which is junior to the Series A Preferred Stock but senior to the
shares of Metrocall common stock, equal to its stated value. The Series B
Preferred Stock carries a dividend of 14% of the stated value per year, payable
semiannually in cash or in additional shares of Series B Preferred Stock, at the
Company's option.
 
  Stock Option Plans
 
     At December 31, 1996, 1,747,002 options were issued and outstanding with a
weighted-average exercise price of approximately $8.18 per share, expiring on
various dates ranging from 2003 through 2006. On February 5, 1997, the
Compensation Committee of the Board of Directors approved a change in the
exercise price for substantially all outstanding options for current employees,
officers and directors. The new exercise price was $6.00 per share, the fair
market value on the date of the change.
 
     During the six months ended June, 30, 1997, the Board of Directors approved
grants of options to purchase 626,500 shares of Metrocall common stock to
current officers, employees and directors with exercise prices ranging from
$4.50 to $6.00 per share with a weighted-average exercise price of $5.97 per
share. All options were granted with exercise prices equal to or greater than
the fair market value on the date of grant.
 
  Employee Stock Purchase Plan
 
     On May 1, 1996, the stockholders of the Company approved the Metrocall,
Inc. Employee Stock Purchase Plan (the "Stock Purchase Plan"), which offers
eligible employees the opportunity to purchase an aggregate of 300,000 shares of
Metrocall common stock through payroll deductions. Each eligible employee may
elect to purchase shares of Metrocall common stock at the lesser of 85% of the
fair market value of Metrocall common stock on either the first or last trading
day for each payroll deduction period. On January 1, 1997, the Company issued
34,770 shares of Company common stock under the Stock Purchase Plan with a
purchase price of approximately $4.14 per share. For the payroll deduction
period ended June 30, 1997, the
 
                                      F-50
<PAGE>   193
 
                                METROCALL, INC.
 
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
6.  STOCK AND STOCK RIGHTS -- (CONTINUED)
Company issued 74,977 shares of common stock effective July 1, 1997 with a
purchase price of approximately $3.80 per share.
 
7.  COMMITMENTS AND CONTINGENCIES
 
  Legal and Regulatory Matters
 
     The Company is subject to certain legal and regulatory matters in the
normal course of business. In the opinion of management, the outcome of such
assertions will not have a material adverse effect on the financial position or
results of operations of the Company.
 
     In April 1996, the Company entered into an agreement to purchase certain of
the assets of Source One Wireless, Inc. ("Source One") and placed $1 million
cash in escrow. On June 26, 1996, the Company advised Source One that Source One
had failed to meet certain conditions to complete the transaction and terminated
the agreement. On September 20, 1996, Source One filed an action in the Circuit
Court of Cook County, Illinois, claiming that the Company had breached the
agreement and seeking specific performance of the purchase agreement or
unspecified damages in excess of $80 million. The Company intends to vigorously
defend the claims in this action and believes it has meritorious defenses to
this action. The Company has denied the claim and asserted affirmative defenses
and counterclaims based on misrepresentations and breaches of contract by Source
One. The matter is now in discovery, which is scheduled to be completed by the
end of October 1997; trial is not expected before January 1998.
 
8.  SALE OF TELEMESSAGING ASSETS
 
     On May 9, 1997, the Company completed the sale of the assets of the
telemessaging business acquired in the merger with A+ Network in November 1996
pursuant to the terms of an Asset Purchase Agreement (the "Purchase Agreement")
between Metrocall and Procommunications, Inc. dated April 30, 1997. Pursuant to
the terms of the Purchase Agreement, the Company received proceeds totaling
$11.0 million in cash, net of a cash escrow of $700,000. For the six month
period ended June 30, 1997, the telemessaging business generated net revenues of
approximately $3.7 million and operating income of approximately $0.1 million.
No gain or loss was recognized upon the sale for financial reporting purposes as
net assets sold approximate the net proceeds received.
 
9.  SUBSEQUENT EVENTS
 
  Page America Group, Inc.
 
     On July 1, 1997, the Company completed its acquisition of substantially all
the assets of Page America Group, Inc. and subsidiaries ("Page America"). The
total purchase price of approximately $63.2 million included consideration of
$25 million in cash, 1,500 shares of Series B Preferred Stock (see Note 6)
having a value upon liquidation of $15,000,000, 3,997,458 shares of Metrocall
common stock, assumed liabilities of approximately $3.1 million plus transaction
fees and expenses. The cash portion of the purchase price was funded through
borrowings of $26 million under the Company's credit facility. The Page America
acquisition will be accounted for as a purchase for financial reporting
purposes.
 
  ProNet Inc.
 
     On August 11, 1997, the Company and ProNet Inc. ("ProNet") announced the
signing of a definitive merger agreement dated August 8, 1997, whereby ProNet
would be merged with and into the Company. Under the terms of the merger
agreement, the Company will issue .90 shares of Metrocall common stock for each
share of ProNet common stock, subject to adjustment based on certain defined
operating performance criteria and debt and pager inventory targets. In
connection with the merger, the Company will assume
 
                                      F-51
<PAGE>   194
 
                                METROCALL, INC.
 
      NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
9.  SUBSEQUENT EVENTS -- (CONTINUED)
ProNet's 11 7/8% senior subordinated notes due 2005 totaling $100 million and
expects to refinance indebtedness outstanding under ProNet's credit facility
with the Company's own credit facility. The Company anticipates the merger will
be accounted for as a purchase for financial reporting purposes. The merger is
subject to approval by regulatory agencies including the Federal Communications
Commission, Federal Trade Commission and each company's stockholders.
 
  Credit Facility
 
     The Company has requested that its lenders amend the loan agreement
governing its bank credit facility by increasing available borrowings under the
facility by $25.0 million from $350 million to $375 million. In addition to
increasing available borrowings, the requested amendment includes approval of
the ProNet transaction discussed above and changes to certain financial
covenants including total leverage and interest coverage beginning January 1,
1998. The lenders have approved this amendment subject to completion of loan
documentation.
 
                                      F-52
<PAGE>   195
 
               MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                      CONDITION AND RESULTS OF OPERATIONS
 
     The following discussion and analysis of the financial condition and
results of operations of the Company should be read in conjunction with the
financial statements and the notes thereto which appear elsewhere in this
quarterly report and its annual report on Form 10-K, as amended, for the year
ended December 31, 1996.
 
     All statements contained herein that are not historical facts, including
but not limited to, statements regarding anticipated future capital
requirements, the Company's future development plans, the Company's ability to
obtain additional debt, equity or other financing, and the Company's ability to
generate cash from operations and further savings from existing operations, are
based on current expectations. These statements are forward looking in nature
and involve a number of risks and uncertainties. Actual results may differ
materially. Among the factors that could cause actual results to differ
materially are the following: the availability of sufficient capital to finance
the Company's business plan on terms satisfactory to the Company; competitive
factors, such as the introduction of new technologies and competitors into the
paging and wireless communications industry; pricing pressures which could
affect demand for the Company's services; changes in labor, equipment and
capital costs; future acquisitions and strategic partnerships; general business
and economic conditions; and the other risk factors described from time to time
in the Company's reports filed with the Securities and Exchange Commission. The
Company wishes to caution readers not to place undue reliance on any such
forward looking statements, which statements are made pursuant to the Private
Securities Litigation Reform Act of 1995 and, as such, speak only as of the date
made.
 
OVERVIEW
 
     Metrocall is currently the fifth largest paging company in the United
States based on number of subscribers, with approximately 2.5 million pagers in
service after giving effect to the Page America transaction (see "Recent and
Pending Acquisitions -- Page America Group, Inc."). For the quarter ended June
30, 1997, the Company added 104,442 subscribers to its base of pagers in service
exclusively through internal growth. On February 5, 1997, the Company completed
the acquisition of Radio and Communications Consultants, Inc. and Advanced
Cellular Telephone, Inc. (collectively, "RCC"), affiliated paging companies
operating in the Shreveport, Louisiana market. The results of operations for the
three and six months ended June 30, 1997 reflect the results of operations of
companies acquired throughout 1996 including Parkway Paging, Inc. ("Parkway")
Satellite Paging and Message Network (collectively, "Satellite") and A+ Network,
Inc. ("A+ Network")(collectively, the "1996 Acquisitions"), as well as RCC from
the date of acquisition. Additionally, the results of operations for the three
and six months ended June 30, 1997 also reflect the operations of the Company's
telemessaging business until its sale on May 1, 1997. Net revenues and operating
income derived from the telemessaging operations and included in the results of
operations for the six-month period ended June 30, 1997 were approximately $3.7
million and $0.1 million, respectively. Since June 30, 1996, the Company has
added more than 1.4 million pagers through acquisitions and internal growth
including approximately 200,000 added from the Page America transaction
completed on July 1, 1997.
 
     The definitions below relate to management's discussion of the Company's
results of operations that follows.
 
     - Service, rent and maintenance revenues:  include primarily monthly,
       quarterly, semi-annually and annually billed recurring revenue, not
       generally dependent on usage, charged to subscribers for paging and
       related services such as voice mail and pager repair and replacement.
       Service, rent and maintenance revenues also include revenues derived from
       telemessaging, cellular and long distance services.
 
     - Net revenues:  include service, rent and maintenance revenues and sales
       of customer owned and maintained ("COAM") pagers less net book value of
       products sold.
 
     - Service, rent and maintenance expenses:  include costs related to the
       management, operation and maintenance of the Company's network systems
       and customer support centers.
 
                                      F-53
<PAGE>   196
 
     - Selling and marketing expenses:  include salaries, commissions and
       administrative costs for the Company's sales force and related marketing
       and advertising expenses.
 
     - General and administrative expenses:  include executive management,
       accounting, office telephone, repairs and maintenance, management
       information systems and employee benefits.
 
     The Company derives the majority of its revenues from fixed, periodic
(usually monthly) fees, generally not dependent on usage, charged to subscribers
for paging services. While a subscriber continues to use the Company's service,
operating results benefit from this recurring revenue stream with minimal
requirements for incremental selling expenses or other fixed costs. The
Company's total revenues have increased by approximately 119.3% to $70.3 million
for the quarter ended June 30, 1997 from $32.0 million for the quarter ended
June 30, 1996. Overall, subscribers have increased by approximately 110.2% to
more than 2.3 million at June 30, 1997 from 1.1 million at June 30, 1996.
 
     The Company's average monthly paging service, rent and maintenance revenues
per unit ("ARPU") for the three-month periods ended June 30, 1996 ("1996") and
June 30, 1997 ("1997") was $7.89 and $8.44, respectively. The increase in ARPU
from 1996 to 1997 is primarily related to the merger with A+ Network in November
1996, the changing distribution mix, and enhanced paging services. ARPU for the
A+ Network markets averaged slightly more than $10.00 per month during the
fourth quarter of 1996 causing an increase in the weighted-average ARPU for the
combined company after the merger. In order to capitalize on the anticipated
growth of the paging and wireless messaging industries, the Company has expanded
its channels of distribution to include Company-owned and operated retail
stores, strategic partnerships and alliances, franchises and internet sales
among others; with each focusing on the sale rather than lease of pagers. These
channels tend to have higher ARPU's than typical third-party resellers who
purchase service in quantity at wholesale rates. Furthermore, the Company has
been successful in marketing enhanced services, such as nationwide paging
services and voice mail, to its subscriber base, as well as branded customer
service and billing services for the Company's strategic partners and
franchisees.
 
     The Company's growth and expansion into new markets, whether internal or
through acquisitions, require significant capital investment for the
installation of paging equipment and technical infrastructure. The Company also
purchases pagers for that portion of its subscriber base that leases equipment
from the Company. During the quarter ended June 30, 1997 the Company's capital
expenditures totaled approximately $18.0 million including approximately $12.0
million for pagers, representing an increase in pagers on hand, primarily in
anticipation of the completion of the Page America transaction, and net
increases and maintenance to the rental pager base.
 
     As a result of the completion of the Company's nationwide network and an
emphasis on distribution channels through which pagers are sold rather than
leased, capital expenditures are expected to be reduced for the year ending
December 31, 1997. The combination of growing revenues and EBITDA along with
reduced levels of capital expenditures should result in improving leverage
ratios and access to capital in future periods.
 
     The Company's long-term strategy is to continue to expand its business by
providing paging and other wireless communications services to an increasingly
broad base of subscribers throughout the United States, while increasing total
revenues and EBITDA and de-emphasizing that portion of the business which has
historically leased pagers. The Company believes that increases in revenues from
the sale of pagers and service revenue from providing paging service to such
pagers will more than make up for the losses of rental revenues derived from
leasing pagers, which has increasingly involved high volume, lower margin
transactions. The Company is seeking to increase its base of subscribers by
expanding its operations in existing, contiguous and other markets, through
acquisitions, start-up operations and internal growth. The Company has also
entered into a merger agreement with ProNet Inc. (See "Recent and Pending
Acquisitions -- ProNet Inc.")
 
                                      F-54
<PAGE>   197
 
RESULTS OF OPERATIONS
 
     The following table sets forth for the periods indicated the percentage of
net revenues represented by certain items in the Company's Condensed
Consolidated Statements of Operations.
 
<TABLE>
<CAPTION>
                                                   THREE MONTHS ENDED      SIX MONTHS ENDED JUNE
                                                        JUNE 30,                    30,
                                                 ----------------------    ----------------------
                                                   1996         1997         1996         1997
                                                 ---------    ---------    ---------    ---------
    <S>                                          <C>          <C>          <C>          <C>
    REVENUES:
      Service, rent and maintenance...........        95.9%        95.6%        94.9%        96.1%
      Product sales...........................        26.7         16.4         25.6         15.0
                                                 ---------    -------- -   -------- -   -------- -
           Total revenues.....................       122.6        112.0        120.5        111.1
      Net book value of products sold.........       (22.6)       (12.0)       (20.5)       (11.1)
                                                 ---------    -------- -   -------- -   -------- -
                                                     100.0        100.0        100.0        100.0
    OPERATING EXPENSES:
      Service, rent and maintenance
         expenses.............................        31.8         29.0         32.1         28.7
      Selling and marketing...................        20.7         20.7         19.4         20.2
      General and administrative..............        26.5         23.4         24.7         24.2
      Depreciation and amortization...........        52.1         36.4         48.8         35.3
                                                 ---------    -------- -   -------- -   -------- -
           Total operating expenses...........       131.1        109.5        125.0        108.4
                                                 ---------    -------- -   -------- -   -------- -
           Loss from operations...............       (31.1)        (9.5)       (25.0)        (8.4)
    Interest and other income.................         4.4          0.2          4.9           --
    Interest expense..........................       (16.0)       (12.5)       (16.3)       (12.9)
                                                 ---------    -------- -   -------- -   -------- -
    Loss before income tax benefit............       (42.7)       (21.8)       (36.4)       (21.3)
    Income tax benefit........................         0.8          2.2          0.2          1.8
                                                 ---------    -------- -   -------- -   -------- -
           Net loss...........................       (41.9)       (19.6)       (36.2)       (19.5)
    Preferred dividends.......................          --         (2.6)          --         (2.6)
                                                 ---------    -------- -   -------- -   -------- -
           Loss attributable to common
              stockholders....................       (41.9)%      (22.2)%      (36.2)%      (22.1)%
                                                 =========    =========    =========    =========
    Units in service (end of period)..........   1,109,647    2,332,006    1,109,647    2,332,006
    EBITDA (in thousands)(1)..................   $   5,514    $  16,889    $  12,235    $  33,179
    Ratio of EBITDA to net revenues(1)........        21.1%        26.9%        23.8%        26.9%
    ARPU(2)...................................   $    7.89    $    8.44    $    7.93    $    8.36
    Average monthly operating cost per
      unit(3).................................   $    6.49    $    6.59    $    6.36    $    6.50
</TABLE>
 
- ---------------
(1) EBITDA (earnings before interest, taxes, depreciation and amortization),
    while not a measure under generally accepted accounting principles ("GAAP"),
    is a standard measure of financial performance in the paging industry;
    EBITDA should not be considered in isolation or as an alternative to net
    income (loss), income (loss) from operations, cash flows from operating
    activities or any other measure of performance under GAAP. EBITDA is,
    however, an approximation of the primary financial measure by which the
    Company's covenants are calculated under its indenture relating to its
    senior subordinated notes and its credit facility. See "-- Liquidity and
    Capital Resources" for a discussion of significant capital requirements and
    commitments.
 
(2) ARPU (average monthly paging revenue per unit) is calculated by dividing (a)
    paging service, rent and maintenance revenues for the period by (b) the
    average number of units in service for the period. The calculation of ARPU
    excludes revenues derived from non-paging services such as telemessaging,
    long distance and cellular telephone.
 
(3) Average monthly operating expense per unit is calculated by dividing (a)
    total recurring paging operating expenses before depreciation and
    amortization for the period by (b) the average number of units in service
    for the period. The calculation of average monthly operating expense per
    unit excludes costs associated with the telemessaging operations.
 
                                      F-55
<PAGE>   198
 
THREE MONTHS ENDED JUNE 30, 1997 COMPARED WITH 1996
 
     Total revenues increased approximately $38.2 million, or approximately
119%, from $32.0 million for the three months ended June 30, 1996 (the "1996
quarter") to $70.3 million for the three months ended June 30, 1997 (the "1997
quarter"). Net revenues increased approximately $36.6 million, or 140%, from
$26.1 million in the 1996 quarter to $62.8 million in the 1997 quarter. The
increase is attributable to greater service revenues due primarily to the growth
of pagers in service from 1,109,647 at June 30, 1996, to 2,332,006 at June 30,
1997. Acquisitions completed in 1996 added approximately 900,000 subscribers to
the Company's subscriber base. Operations of acquired companies are included in
the results of operations from their respective acquisition dates. ARPU for
paging services increased from $7.89 per unit in the 1996 quarter to $8.44 per
unit in the 1997 quarter due primarily to the merger with A+ Network in November
1996, the changing distribution mix, and enhanced paging services. Pro forma
ARPU for the quarter ended December 31, 1996, assuming the A+ Network
acquisition was completed as of October 1, 1996, was estimated to be $8.21 per
unit. Factors affecting ARPU in future periods include distribution mix of new
subscribers, competition and new technologies, among others. There can be no
assurance that ARPU will not decline in future periods.
 
     Product sales increased $3.3 million from $7.0 million in the 1996 quarter
to $10.3 million in the 1997 quarter and decreased as a percentage of net
revenues from 26.7% in the 1996 quarter to 16.4% in the 1997 quarter. Net book
value of products sold increased approximately $1.6 million from $5.9 million in
the 1996 quarter to $7.5 million in the 1997 quarter principally due to the
increase in product sales, partially offset by increased depreciation expense.
The gross margin on products sold increased from 15.2% in the 1996 quarter to
26.8% in the 1997 quarter.
 
     Overall, the Company experienced an increase in average monthly operating
costs per unit in service (operating costs per unit before depreciation and
amortization) from the 1996 quarter to the 1997 quarter. Average monthly
operating cost per unit increased from $6.49 per unit for the 1996 quarter to
$6.59 per unit (excluding operating costs associated with non-paging operations,
primarily telemessaging) for the 1997 quarter. Each operating expense is
discussed separately below.
 
     Service, rent and maintenance expenses increased approximately $9.9 million
from $8.3 million in the 1996 quarter to $18.2 million in the 1997 quarter and
decreased as a percentage of net revenues from 31.8% in the 1996 quarter to
29.0% in the 1997 quarter. The overall increase in service, rent and maintenance
expense is attributable to the acquisitions of Parkway Paging ($0.8 million),
Satellite ($0.8 million) and A+ Network ($5.9 million) completed in 1996.
Additional increases are attributable to increased third-party carrier costs
($0.4 million), increased site rental costs ($1.1 million) and increased
personnel costs ($0.9 million). Service, rent and maintenance expense per unit
was $2.61 in the 1996 and 1997 quarters, respectively.
 
     Selling and marketing expenses increased approximately $7.6 million from
$5.4 million in the 1996 quarter to $13.0 million in the 1997 quarter and was
unchanged as a percentage of net revenues at 20.7%. The increase in selling and
marketing expenses is primarily associated with the companies acquired in 1996,
which added 20 new sales offices and approximately 80 retail locations. Selling
and marketing expenses attributed to the acquired companies are Parkway Paging
($0.5 million), Satellite ($0.3 million), and A+ Network ($5.5 million).
Additional increases are associated with the increased sales staff and related
costs ($1.0 million) and increased advertising and promotion costs ($0.3
million). Monthly selling and marketing expense per unit has increased from
$1.70 per unit in the 1996 quarter to $1.89 per unit in the 1997 quarter, due
primarily to increasing the Company's sales force as a result of acquisitions in
new geographic areas for the Company. Selling and marketing expenses may
increase as a percentage of net revenues as the Company continues to increase
its presence in existing markets and expand geographic coverage.
 
     General and administrative expenses increased $7.8 million from $6.9
million in the 1996 quarter compared to $14.7 million in the 1997 quarter, and
decreased as a percentage of net revenues from 26.5% in the 1996 quarter to
23.4% in the 1997 quarter. General and administrative expenses attributed to the
acquired companies are Parkway Paging ($0.2 million), Satellite ($0.4 million),
and A+ Network ($4.4 million). General and administrative expenses also
increased due to increased expenses for collection activities ($1.0 million),
additional operational personnel ($1.0 million), and taxes, licenses and fees
($0.5 million). Monthly general and administrative expense per unit has
decreased from $2.18 per unit in the 1996 quarter to
 
                                      F-56
<PAGE>   199
 
$2.09 per unit in the 1997 quarter. On a per unit basis, general and
administrative expenses are expected to decline as additional synergies are
gained from the Company's 1996 and 1997 acquisitions.
 
     Depreciation and amortization increased approximately $9.2 million from
$13.6 million in the 1996 quarter to $22.8 million in the 1997 quarter, and
decreased as a percentage of net revenues from 52.1% to 36.4% in the 1996
quarter and the 1997 quarter, respectively. The increase in total depreciation
expense resulted primarily from depreciation on increased subscriber paging
equipment and on other plant and operating equipment since June 30, 1996.
Amortization increased substantially during 1997 due to the amortization of
goodwill and other intangibles recorded in the 1996 and 1997 acquisitions.
Effective July 1, 1996, the Company changed the estimated useful lives of
certain intangibles acquired in 1994, including goodwill and regulatory licenses
issued by the FCC from 40 years to 15 years for goodwill and from 40 years to 25
years for FCC licenses. The impact of these changes was to increase amortization
expense for the 1997 quarter by approximately $650,000.
 
     Interest expense increased approximately $3.7 million, from $4.2 million in
the 1996 quarter to $7.9 million in the 1997 quarter. Interest expense increased
due to higher average level of debt during 1997 primarily associated with the
financing of the 1996 Acquisitions.
 
     In November 1996, the Company issued 159,600 shares of Series A Convertible
Preferred Stock ("Series A Preferred") with a stated value of $250 per share for
total proceeds of $39.9 million. The Series A Preferred bears dividends at 14%
of the stated value per year. Dividends on the Series A Preferred may be paid in
either cash or additional shares of Series A Preferred, at the Company's option.
Preferred dividends recorded during the 1997 quarter were approximately $1.6
million.
 
     Loss attributable to common stockholders increased $3.0 million from $10.9
million in the 1996 quarter to $13.9 million in the 1997 quarter primarily due
to increased interest expense ($3.7 million) and preferred dividends ($1.6
million), partially offset by a decrease in the loss from operations of $2.1
million.
 
     EBITDA increased approximately $11.4 million to $16.9 million in the 1997
quarter from $5.5 million in the 1996 quarter. As a percentage of net revenues,
EBITDA increased from 21.1% in 1996 to 26.9% in 1997.
 
SIX MONTHS ENDED JUNE 30, 1997 COMPARED WITH 1996
 
     Total revenues increased approximately $75.1 million from $62.0 million for
the six months ended June 30, 1996 ("1996") to $137.1 million for the six months
ended June 30, 1997 ("1997"). Service, rent and maintenance revenues increased
approximately $69.7 million in 1997 from $48.8 million in 1996 to $118.5 million
in 1997. The increase in revenues is attributed to greater service revenues due
to the growth of pagers from 1,109,647 at June 30, 1996 to 2,332,006 at June 30,
1997. Monthly ARPU for paging services increased from $7.93 per unit in 1996 to
$8.36 per unit in 1997 due to the merger with A+ Network in November, 1996, the
changing distribution mix, and enhanced paging services. Factors affecting ARPU
in future periods include distribution mix of new subscribers, competition and
new technologies, among others. There can be no assurance that ARPU will not
decline in future periods.
 
     Product sales increased $5.4 million from $13.1 million in 1996 to $18.5
million in 1997, and decreased as a percentage of total revenues from 25.6% in
1996 to 15.0% in 1997. Net book value of products sold increased approximately
$3.1 million from $10.6 million in 1996 to $13.7 million in 1997 principally due
to the increase in product sales, partially offset by increased depreciation
expense. The gross margin on products sold increased from 19.7% in 1996 to 26.1%
in 1997.
 
     Overall, the Company experienced an increase in average monthly operating
costs per unit in service (operating costs per unit before depreciation and
amortization) from 1996 to 1997. Average monthly operating costs per unit
increased from $6.36 per unit in 1996 to $6.50 per unit in 1997. Each operating
expense is discussed separately below.
 
     Service, rent and maintenance expenses increased approximately $18.9
million from $16.5 million in 1996 to $35.4 million in 1997 and decreased as a
percentage of net revenues from 32.1% to 28.7% in 1997. The overall increase in
service, rent and maintenance expense is attributable to the acquisitions of
Parkway Paging
 
                                      F-57
<PAGE>   200
 
($1.4 million), Satellite ($1.5 million), and A+ Network ($11.0 million)
completed during the second half of 1996. Additional increases are attributable
to increased third party carrier costs ($0.5 million), increased site rental
costs ($1.7 million), and increased personnel costs ($2.2 million). Service,
rent and maintenance expense per unit has decreased from $2.68 per unit in 1996
to $2.54 per unit in 1997.
 
     Selling and marketing expenses increased approximately $14.9 million, from
$ 10.0 million in 1996 to $24.9 million in 1997 and increased as a percentage of
net revenues from 19.4% in 1996 to 20.2% in 1997. The increase in selling and
marketing expenses is primarily associated with the companies acquired in 1996,
which added 20 new sales offices and approximately 80 retail locations. Selling
and marketing expenses attributed to the acquired companies are Parkway Paging
($0.9 million), Satellite ($0.6 million), and A+ Network ($10.6 million).
Additional increases are associated with the increased sales staff and related
costs ($2.0 million), and increased advertising and promotional costs ($0.5
million). Monthly selling and marketing expense per unit has increased from
$1.62 per unit in 1996 to $1.84 per unit in 1997, due primarily to increasing
the Company's sales force as a result of acquisitions in new geographic areas
for the Company. Selling and marketing expenses may increase as a percentage of
net revenues as the Company continues to increase its presence in existing
markets and expand geographic coverage.
 
     General and administrative expenses increased $17.1 million from $12.7
million in 1996 to $29.8 million in 1997 and decreased as a percentage of net
revenues from 24.7% in 1996 to 24.2% in 1997. General and administrative
expenses attributed to the acquired companies are Parkway Paging ($0.4 million),
Satellite ($0.9 million), and A+ Network ($11.2 million). General and
administrative expenses also increased primarily due to increased expenses for
collection activities ($1.6 million), additional operational personnel ($1.3
million), and taxes and licenses ($0.8 million). Monthly general and
administrative expense per unit has increased from $2.06 per unit in 1996 to
$2.12 per unit in 1997. On a per unit basis, general and administrative expenses
are expected to decline as additional synergies are gained from the Company's
1996 and 1997 acquisitions.
 
     Depreciation and amortization increased approximately $18.4 million from
$25.1 million in 1996 to $43.5 million in 1997 and decreased as a percentage of
net revenues from 48.8% in 1996 to 35.3% in 1997. The increase in total
depreciation expense resulted primarily from depreciation on increased
subscriber paging equipment and on other plant and operating equipment.
Amortization increased substantially during 1997 due to the amortization of
goodwill and other intangibles recorded in the 1996 and 1997 acquisitions.
Effective July 1, 1996, the Company changed the estimated useful lives of
certain intangibles acquired in 1994, including goodwill and regulatory licenses
issued by the FCC from 40 years to 15 years for goodwill and from 40 years to 25
years for FCC licenses. The impact of these changes was to increase amortization
expense for 1997 by approximately $1.3 million.
 
     Interest expense increased approximately $7.5 million, from $8.4 million in
1996 to $15.9 million in 1997. Interest expense increased due to higher average
level of debt during 1997 primarily associated with the financing of the 1996
acquisitions.
 
     In November, 1996, the Company issued 159,600 shares of Series A
Convertible Preferred Stock ("Series A Preferred") with a stated value of $250
per share for total proceeds of $39.9 million. The Series A Preferred bears
dividends at 14% of the stated value per year. Dividends on the Series A
Preferred may be paid in either cash or additional shares of Series A Preferred,
at the Company's option. Preferred dividends recorded during the six months
ended June 30, 1997 were approximately $3.2 million.
 
     Loss attributable to common stockholders increased $8.6 million from $18.6
million in 1996 to $27.2 million in 1997 primarily due to increased interest
expense ($7.5 million) and preferred dividends ($3.2 million) partially offset
by a decrease in loss from operations of $2.5 million.
 
     EBITDA increased approximately $21.0 million to $33.2 million in 1997 from
$12.2 million in 1996. As a percentage of net revenues, EBITDA increased from
23.8% in 1996 to 26.9% in 1997.
 
                                      F-58
<PAGE>   201
 
LIQUIDITY AND CAPITAL RESOURCES
 
     The Company's operations require the availability of substantial funds to
finance the growth of its existing operations and customer base, development and
construction of future wireless communications networks, expansion into new
markets, and the acquisition of other wireless communications companies. Further
cash requirements include debt service, working capital and general corporate
requirements.
 
     The Company has financed its internal growth in 1997 through its operating
cash flow, available cash on hand and, to a limited extent, borrowings under the
Company's credit facility. Net cash provided by operating activities increased
from $13.9 million to $14.3 million for the six months ended June 30, 1996 and
1997, respectively.
 
     At June 30, 1997, the Company had a working capital surplus of
approximately $5.8 million largely due to cash received from the sale of the
Company's telemessaging operations. In prior periods, the Company has
experienced working capital deficits and such deficits may reoccur in future
periods. Pursuant to the Page America acquisition, the Company will assume
certain current liabilities of Page America which may result in a working
capital deficit. The Company attempts, whenever possible, to finance its growth
through operating cash flow and available cash balances rather than incurring
additional indebtedness. As a result, purchases of noncurrent assets, including
pagers and other network and transmission equipment, may be financed with
current liabilities (e.g. accounts payable), causing a deficit in working
capital. The Company currently has sufficient borrowing capacity available under
its credit facility, discussed below, to fund estimated working capital
requirements at June 30, 1997 including working capital needs associated with
the Page America transaction.
 
     Cash flows used in investing activities were primarily to fund purchases of
property and equipment. Capital expenditures were approximately $39.1 million
and $32.5 million for the six months ended June 30, 1996 and 1997, respectively.
Capital expenditures for the 1997 six months included approximately $12.0
million for pagers, representing increases in pagers on hand, primarily in
anticipation of the completion of the Page America transaction, and net
increases and maintenance to the rental subscriber base. The balance of capital
expenditures included $2.7 million for information systems and computer related
equipment, $2.4 million for network construction and development and $0.9
million for general purchases including leasehold improvements and office
equipment. Additionally, the Company received proceeds of approximately $10.3
million from the sale of the assets of its telemessaging operations acquired in
the A+ Network merger in November 1996.
 
     Cash flows provided by financing activities for the six months ended June
30, 1997, included borrowings under the Company's credit facility of $20.0
million primarily to fund working capital requirements and capital expenditures.
Total capital expenditures for the year ending December 31, 1997 are estimated
to be approximately $60 million primarily for the acquisition of pagers, paging
and transmission equipment and information systems enhancement. This estimate
does not include the cash consideration of $26.0 million paid in the Page
America acquisition on July 1, 1997, or the related transaction costs, but does
include estimated capital expenditures related to the Page America assets after
the acquisition. The Company expects that its capital expenditures for the year
ending December 31, 1997, will be financed through a combination of operating
cash flow and borrowings. Projected capital expenditures are subject to change
based on the Company's internal growth, general business and economic conditions
and competitive pressures. Future cash requirements include debt service costs,
primarily interest.
 
     There are no significant principal payments required under the Company's
debt agreements during the year ending 1997. Additionally, dividends on the
Company's Series A Preferred accrue at a rate of 14% of the stated value ($39.9
million) per year. Dividends on the Series A Preferred may be paid in either
cash or additional shares of Series A Preferred, at the Company's option.
However, under certain circumstances, as defined in the certificate of
designation, the dividend rate may increase to 16% per year. Further, Metrocall
is required to redeem all outstanding shares of Series A Preferred (including
dividend shares) in November 2008 unless the holders have previously converted
such shares to common stock. Accrued but unpaid dividends at June 30, 1997, were
approximately $0.7 million. On May 7, 1997, the Board of Directors
 
                                      F-59
<PAGE>   202
 
authorized the payment of accrued dividends on the Series A Preferred in 11,172
additional shares of Series A Preferred and such additional shares were issued
effective May 15, 1997.
 
SENIOR SECURED CREDIT FACILITY
 
     During 1996, the Company amended and restated the loan agreement governing
the Company's existing credit facility. Subject to certain conditions set forth
in the new agreement, the Company may borrow up to $350 million under two loan
facilities. The first facility ("Facility A") is a $225 million reducing
revolving credit facility and the second ("Facility B") is a $125 million
reducing credit facility (together Facility A and Facility B are referred to as
the "Credit Facility"). The Credit Facility has a term of eight years and is
secured by substantially all the assets of the Company. Required quarterly
principal repayments begin on March 31, 2000 and continue through December 31,
2004. At June 30, 1997, a total of approximately $189.9 million was outstanding
under the Credit Facility. Pursuant to the terms of the loan agreement, at June
30, 1997, total additional borrowings available to the Company under the credit
facility were approximately $76.8 million. On July 1, 1997, the Company
increased the borrowings outstanding under its credit facility by $26.0 million
to fund the cash portion of the Page America acquisition including transaction
fees and expenses.
 
     The Credit Facility contains various covenants that, among other
restrictions, require the Company to maintain certain financial ratios,
including total debt to annualized operating cash flow (not to exceed 6.0 to 1.0
from January 1, 1997 to December 31, 1997, and declining thereafter), senior
debt to annualized operating cash flow, annualized operating cash flow to pro
forma debt service, total sources of cash to total uses to cash, and operating
cash flow to interest expense (in each case, as such terms are defined in the
agreement relating to the Credit Facility). The Credit Facility also required
the Company to raise additional equity (approximately $10,000,000) if its ratio
of cash flow to interest expense is less than 2.0 to 1.0 for the quarter ending
June 30, 1997. For the quarter ended June 30, 1997, the ratio of cash flow to
interest expense was 2.3 to 1.0. The covenants also limit additional
indebtedness and future mergers and acquisitions (other than the pending
transaction with Page America discussed below) without the approval of the
lenders, and restrict the payment of cash dividends and other stockholder
distributions by the Company during the term of the Credit Facility. The Credit
Facility also prohibits certain changes in ownership control of the Company as
defined, during the term of the Credit Facility.
 
     The Company has requested its lenders to amend the loan agreement governing
its credit facility to add a third facility ("Facility C"). Facility C is a $25
million reducing revolving facility which increases total available borrowings
under the facility from $350 million to $375 million. In addition to increasing
the available borrowings, the requested amendment includes approval of the
ProNet transaction, discussed below, and changes to certain financial covenants
including total leverage and interest coverage beginning January 1, 1998. The
lenders have approved this amendment subject to completion of loan
documentation.
 
     Management believes that funds generated by the Company's operations,
together with those available under its Credit Facility, will be sufficient to
meet cash requirements for the pending acquisition of Page America, to finance
estimated capital expenditure requirements, and to fund the Company's existing
operations for the foreseeable future. While the Company has no current
outstanding commitments, other than the agreement to acquire the assets of Page
America, discussed below, the Company will continue to evaluate strategic
acquisition targets in the future. Potential future acquisitions would be
evaluated on significant strategic opportunities such as geographic coverage and
regulatory licenses and other factors including overall valuation, consideration
and availability of financing. Such potential acquisitions may result in
substantial capital requirements for which additional financing may be required.
No assurance can be given that such additional financing would be available on
terms satisfactory to the Company.
 
RECENT AND PENDING ACQUISITIONS
 
  Page America Group, Inc.
 
     On April 22, 1996, the Company signed a definitive acquisition agreement
(the "Page America Agreement") with Page America Group, Inc. of Hackensack, New
Jersey ("Page America"). The Page America Agreement was subsequently amended and
restated on January 30, 1997 and further amended
 
                                      F-60
<PAGE>   203
 
on March 28, 1997 (the "Amended Page America Agreement"). The Page America
acquisition was completed on July 1, 1997. Pursuant to the Amended Page America
Agreement, as subsequently modified (i) Metrocall acquired substantially all of
the assets and assumed substantially all of Page America's accounts payable and
certain obligations under various office and equipment leases and (ii) Page
America received (a) approximately $25 million in cash, (b)1,500 shares of
Series B Convertible Preferred Stock with a liquidation value of $15 million and
(c) 3,997,458 shares of the Company's common stock. The Company financed the
cash portion of the purchase price, including transaction fees and expenses,
with borrowings of $26 million under its Credit Facility. The Page America
transaction will be accounted for as a purchase for financial reporting
purposes.
 
PRONET INC.
 
     On August 11, 1997, the Company and ProNet Inc. ("ProNet") announced the
signing of a definitive merger agreement, whereby ProNet will be merged with and
into the Company. Under the terms of the merger agreement, the Company will
issue .90 shares of Metrocall common stock for each share of ProNet common
stock, subject to adjustment based on certain defined operating performance
criteria and debt and pager inventory targets. In connection with the merger,
the Company will assume ProNet's 11 7/8% senior subordinated notes due 2005
totaling $100 million and expects to refinance indebtedness outstanding under
ProNet's credit facility with the Company's own credit facility. The Company
anticipates the merger will be accounted for as a purchase for financial
reporting purposes. The merger is subject to approval by regulatory agencies
including the Federal Communications Commission, Federal Trade Commission and
each company's stockholders.
 
ADDITIONAL FACTORS AFFECTING FUTURE OPERATING RESULTS AND FINANCIAL CONDITION
 
     The ability of the Company to meet its debt service and other obligations
will be dependent upon the future performance of the Company and its cash flows
from operations, which will be subject to financial, business and other factors,
certain of which are beyond its control, such as prevailing economic conditions.
Management believes that funds generated from the Company's operations and funds
available under its Credit Facility will be sufficient to meet projected capital
expenditures and debt service requirements and to fund the Company's operations
for the foreseeable future. Although management has no further obligation to do
so (other than Page America discussed above), it plans to continue to expand its
geographic service areas through internal growth and will continue to evaluate
potential strategic acquisition targets in the future which may result in
substantial capital requirements for which additional financing may be required.
No assurance can be given that such additional financing would be available on
terms satisfactory to the Company. Additionally, the following important
factors, among others, could cause the Company's operating results and financial
condition to differ materially from those indicated or suggested by forward
looking statements made in this quarterly report.
 
  Substantial Indebtedness
 
     At June 30, 1997, the Company had outstanding approximately $349.3 million
in long-term debt consisting of bank loans, senior subordinated notes, mortgage
indebtedness and capital leases, and incurred additional indebtedness of $26
million in connection with the Page America acquisition on July 1, 1997.
Further, the Company expects to assume ProNet's 11 7/8% senior subordinated
notes totaling $100 million and to refinance bank indebtedness outstanding under
the ProNet credit facility with borrowings under its own credit facility.
Additionally, the Company expects to incur additional indebtedness (in the form
of draws under the Company's senior secured credit facility) to meet working
capital needs and other purposes. This substantial indebtedness, along with the
net losses and working capital deficits sustained by the Company in recent
periods, will have consequences for the Company, including the following: (i)
the ability of the Company to obtain additional financing for working capital,
capital expenditures, debt service requirements or other purposes may be
impaired; (ii) a substantial portion of the Company's cash flow from operations
will be required to be dedicated to the payment of the Company's interest
expense; (iii) indebtedness under the Credit Facility bears interest at floating
rates, which will cause the Company to be vulnerable to increases in
 
                                      F-61
<PAGE>   204
 
interest rates; (iv) the Company may be more highly leveraged than companies
with which it competes, which may place it at a competitive disadvantage; and
(v) the Company may be more vulnerable in the event of a downturn in its
business or in general economic conditions. In addition, the ability of the
Company to access borrowings under its credit facility and to meet its debt
service and other obligations (including compliance with financial covenants)
will be dependent upon the future performance of the Company and its cash flows
from operations, which will be subject to financial, business and other factors,
certain of which are beyond its control, such as prevailing economic conditions.
No assurance can be given that, in the event the Company were to require
additional financing, such additional financing would be available on terms
permitted by agreements relating to existing indebtedness or otherwise
satisfactory to Metrocall.
 
  Possible Impact of Competition and Technological Change
 
     The Company faces competition from other paging companies in all markets in
which it operates. The wireless communications industry is a highly competitive
industry, with price being one of the primary means of differentiation among
providers of numeric messaging services which account for the substantial
majority of the Company's revenues. Companies in the industry also compete on
the basis of coverage area, enhanced services, transmission quality, system
reliability and customer service. Certain of Metrocall's competitors possess
greater financial, technical, marketing and other resources that Metrocall. In
addition, other entities offering wireless two-way communications technology,
including cellular telephone, specialized mobile radio services and personal
communications services, compete with the paging services provided by Metrocall.
There can be no assurance that additional competitors will not enter markets
served by Metrocall or that Metrocall will be able to compete successfully. In
this regard, certain long distance carriers have begun to or have announced
their intention to market paging services jointly with other telecommunications
services.
 
     The wireless communications industry is characterized by rapid
technological change. Future technological advances in the wireless
communications industry could create new services or products competitive with
the paging and wireless messaging services provided or to be developed by
Metrocall. Recent and proposed regulatory changes by the Federal Communications
Commission ("FCC") are aimed at encouraging such services and products.
 
     In particular, in 1994 the FCC began auctioning licenses for new personal
communications services ("PCS"). The FCC's rules also provide for the private
use of PCS spectrum on an unlicensed basis. PCS will involve a network of small,
low-powered transceivers placed throughout a neighborhood, business complex,
community or metropolitan area to provide customers with mobile voice and data
communications. There are two types of PCS, narrowband and broadband. Narrowband
PCS is expected to provide enhanced or advanced paging and messaging
capabilities, such as "acknowledgment paging" or "talk-back" paging. Several PCS
systems are currently operational. Additionally, other existing or prospective
radio services have potential to compete with Metrocall. For example, the FCC
has authorized non-geostationary mobile satellite service systems in several
frequency bands, and has initiated proceedings to consider making additional
licenses in some of those bands available. Licensees of those satellite services
(some of whom have already launched satellites) are permitted to offer signaling
and other mobile services that could compete with terrestrial paging companies.
A recent FCC decision will allow land mobile licensees in the 220-222 MHz band
to offer commercial paging services. The FCC has also initiated a rule making
proceeding proposing to allow Multiple Address Systems, a fixed microwave
service in various 900 MHz frequency bands, to offer mobile services. Any of
these services may compete directly or indirectly with Metrocall.
 
     Moreover, changes in technology could lower the cost of competitive
services and products to a level where Metrocall's services and products would
become less competitive or to where Metrocall would be required to reduce the
prices of its services and products. There can be no assurance that Metrocall
will be able to develop or introduce new services and products to remain
competitive or that Metrocall will not be adversely affected in the event of
such technological developments.
 
     Technological changes also may affect the value of the pagers owned by
Metrocall and leased to its subscribers. If Metrocall's subscribers requested
more technologically advanced pagers, Metrocall could incur additional capital
expenditures if it were required to replace pagers to its subscribers.
 
                                      F-62
<PAGE>   205
 
  History of Net Losses
 
     Metrocall has sustained net losses of $2.4 million, $20.1 million and $49.1
million for the years ended December 31, 1994, 1995 and 1996 and $24.1 million
for the six months ended June 30, 1997. No assurance can be given that losses
can be reversed in the future. In addition, at June 30, 1997, Metrocall's
accumulated deficit was approximately $124.0 million. Metrocall's business
requires substantial funds for capital expenditures and acquisitions that result
in significant depreciation and amortization charges. Additionally, substantial
levels of borrowing, which will result in significant interest expense, are
expected to be outstanding in the foreseeable future. Accordingly, net losses
are expected to continue to be incurred in the future. There can be no assurance
that Metrocall will be able to operate profitably at any time in the future.
 
  Litigation
 
     In April 1996, the Company entered into an agreement to purchase certain of
the assets of Source One Wireless, Inc. ("Source One") and placed $1 million
cash in escrow. On June 26, 1996, the Company advised Source One that Source One
had failed to meet certain conditions to complete the transaction and terminated
the agreement. On September 20, 1996, Source One filed an action in the Circuit
Court of Cook County, Illinois claiming that the Company had breached the
agreement and seeking specific performance of the purchase agreement of
unspecified damages in excess of $80 million. The Company intends to vigorously
defend the claims in this action and believes it has meritorious defenses to
this action. The Company has denied the claim and asserted affirmative defenses
and counterclaims based on misrepresentations and breaches of contract by Source
One. The matter is now in discovery, which is scheduled to be completed by the
end of October 1997; trial is not expected before January 1998.
 
  Subscriber Turnover
 
     The results of operations of paging service providers, such as Metrocall,
can be significantly affected by subscriber cancellations and by subscribers who
switch their service to other carriers. Metrocall's average monthly subscriber
turnover rate for the six months ended June 30, 1997 was approximately 2.0%. In
order to realize net growth in subscribers, disconnected subscribers must be
replaced and new subscribers must be added. The sales and marketing costs
associated with attracting new subscribers are substantial relative to the costs
of providing service to existing customers. Because Metrocall's business is
characterized by high fixed costs, disconnections directly and adversely affect
Metrocall's results of operations. An increase in its subscriber cancellation
rate may adversely affect Metrocall's results of operations.
 
  Potential for Change in Regulatory Environment
 
     Metrocall's paging operations are subject to regulation by the FCC and, to
a lesser extent, by various state regulatory agencies. There can be no assurance
that those agencies will not adopt regulations or take actions that would have a
material adverse effect on the business of Metrocall. Changes in regulation of
Metrocall's paging business or the allocation of radio spectrum for services
that compete with Metrocall's business could adversely affect Metrocall's
results of operations. For example, the FCC has adopted rules to issue paging
licenses on a wide-area basis by competitive bidding; those rules are currently
subject to pending appeals and petitions for agency reconsideration. Although,
Metrocall believes that the proposed rule changes may simplify Metrocall's
regulatory compliance burdens, particularly regarding adding or relocating
transmitter sites, those rule changes may also increase Metrocall's costs of
obtaining paging licenses.
 
  Intangible Assets
 
     Intangible assets, net of accumulated amortization, have increased
significantly since June 30, 1996 primarily as a result of the Company's 1996
acquisitions of Parkway, Satellite and A+ Network. At June 30, 1997, the
Company's total assets of approximately $646.7 million included net intangible
assets of approximately $440.4 million. Intangible assets include state
certificates and FCC licenses, customer lists, debt financing cost, goodwill and
certain other intangibles. The Company will record, for financial reporting
purposes, additional intangible assets in connection with its acquisition of the
assets of Page America. Long-
 
                                      F-63
<PAGE>   206
 
lived assets and identifiable intangibles to be held and used are reviewed for
impairment whenever events or changes in circumstances indicate that the
carrying amount should be addressed. Impairment is measured by comparing the
book value to the estimated undiscounted future cash flows expected to result
from use of the assets and their eventual disposition The Company's estimates of
anticipated gross revenues, the remaining estimated lives of tangible and
intangible assets, or both could be reduced significantly in the future due to
changes in technology, regulation, available financing and competitive pressures
in any of the Company's individual markets. As a result, the carrying amount of
long-lived assets and intangible assets including goodwill could be reduced
materially in the future.
 
                                      F-64
<PAGE>   207
 
               REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
Stockholders and Board of Directors
ProNet Inc.
 
     We have audited the accompanying consolidated balance sheets of ProNet Inc.
and subsidiaries as of December 31, 1996 and 1995, and the related consolidated
statements of operations, stockholders' equity and cash flows for each of the
three years in the period ended December 31, 1996. These financial statements
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these financial statements based on our audits.
 
     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
     In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the consolidated financial position of
ProNet Inc. and subsidiaries at December 31, 1996 and 1995, and the consolidated
results of their operations and their cash flows for each of the three years in
the period ended December 31, 1996, in conformity with generally accepted
accounting principles.
 
                                          ERNST & YOUNG LLP
 
Dallas, Texas
February 5, 1997,
except for Note N, as to which the date is
March 4, 1997
 
                                      F-65
<PAGE>   208
 
                          PRONET INC. AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                               DECEMBER 31,
                                                                           --------------------
                                                                             1996        1995
                                                                           --------    --------
<S>                                                                        <C>         <C>
ASSETS
CURRENT ASSETS:
  Cash and cash equivalents.............................................   $  2,286    $ 10,154
  Trade accounts receivable, less allowance for doubtful accounts of
     $939 and $1,018 as of December 31, 1996 and 1995, respectively.....     13,747       7,498
  Federal income tax receivable.........................................        497         990
  Inventories...........................................................      2,760       1,574
  Other current assets..................................................      2,499       1,937
                                                                           --------    --------
                                                                             21,789      22,153
                                                                           --------    --------
EQUIPMENT:
  Pagers................................................................     59,003      36,789
  Communications equipment..............................................     49,134      26,051
  Security systems' equipment...........................................     12,897      11,866
  Office and other equipment............................................     11,454       7,179
                                                                           --------    --------
                                                                            132,488      81,885
  Less allowance for depreciation.......................................    (50,718)    (34,203)
                                                                           --------    --------
                                                                             81,770      47,682
                                                                           --------    --------
GOODWILL AND OTHER ASSETS, net of accumulated amortization of $22,297
  and $9,266 as of December 31, 1996 and 1995, respectively.............    208,157     117,134
                                                                           --------    --------
                                                                           $311,716    $186,969
                                                                           ========    ========
 
LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
  Trade payables........................................................   $ 10,452    $  8,387
  Other accrued expenses and liabilities................................     13,264      10,524
                                                                           --------    --------
                                                                             23,716      18,911
LONG-TERM DEBT..........................................................    148,691      99,319
DEFERRED CREDITS........................................................      5,660      19,183
STOCKHOLDERS' EQUITY:
  Common stock, $ .01 par value:
     Authorized shares--20,000
     Issued shares--12,871
     Outstanding shares--12,473.........................................        129          70
  Additional capital....................................................    180,694      56,617
  Retained deficit......................................................    (45,714)     (5,671)
  Less treasury stock at cost...........................................     (1,460)     (1,460)
                                                                           --------    --------
                                                                            133,649      49,556
                                                                           --------    --------
                                                                           $311,716    $186,969
                                                                           ========    ========
</TABLE>
 
                See Notes to Consolidated Financial Statements.
 
                                      F-66
<PAGE>   209
 
                          PRONET INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                      YEAR ENDED DECEMBER 31,
                                                                   ------------------------------
                                                                     1996       1995       1994
                                                                   --------    -------    -------
<S>                                                                <C>         <C>        <C>
REVENUES
  Service revenues..............................................   $ 87,239    $56,108    $33,079
  Product sales.................................................     15,817     10,036      6,639
                                                                   --------    --------   -------
          Total revenues........................................    103,056     66,144     39,718
  Net book value of products sold...............................    (13,244)    (9,421)    (6,644)
                                                                   --------    --------   -------
                                                                     89,812     56,723     33,074
COST OF SERVICES
  Pager lease and access services...............................     24,508     13,218      7,972
  Security systems' equipment services..........................      1,416      1,178      1,213
                                                                   --------    --------   -------
                                                                     25,924     14,396      9,185
                                                                   --------    --------   -------
          Gross margin..........................................     63,888     42,327     23,889
EXPENSES
  Sales and marketing...........................................     15,680      8,256      6,737
  General and administrative....................................     23,410     15,679      5,389
  Depreciation and amortization.................................     40,624     18,662      8,574
  Nonrecurring charges..........................................      8,809         --         --
                                                                   --------    --------   -------
                                                                     88,523     42,597     20,700
                                                                   --------    --------   -------
          Operating income (loss)...............................    (24,635)      (270)     3,189
OTHER INCOME (EXPENSE)
  Interest and other income.....................................        285      1,291        173
  Interest expense..............................................    (15,370)    (8,640)    (1,774)
                                                                   --------    --------   -------
                                                                    (15,085)    (7,349)    (1,601)
                                                                   --------    --------   -------
INCOME (LOSS) BEFORE INCOME TAXES...............................    (39,720)    (7,619)     1,588
INCOME TAX EXPENSE..............................................        323         78        895
                                                                   --------    --------   -------
          Net income (loss).....................................   $(40,043)   $(7,697)   $   693
                                                                   ========    ========   =======
Net income (loss) per share.....................................   $  (4.07)   $ (1.23)   $  0.16
                                                                   ========    ========   =======
Weighted average shares.........................................      9,840      6,267      4,393
                                                                   ========    ========   =======
</TABLE>
 
                See Notes to Consolidated Financial Statements.
 
                                      F-67
<PAGE>   210
 
                          PRONET INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                     YEAR ENDED DECEMBER 31,
                                                                ---------------------------------
                                                                  1996         1995        1994
                                                                ---------    --------    --------
<S>                                                             <C>          <C>         <C>
OPERATING ACTIVITIES:
  Net income (loss)..........................................   $ (40,043)   $ (7,697)   $    693
  Adjustments to reconcile net income (loss) to net cash
     provided by operating activities:
     Depreciation and amortization...........................      40,624      18,662       8,574
     Amortization of discount................................          72          36          --
     Deferred tax provision..................................        (688)         --         293
     Recoverable FIT.........................................         257          --          --
     Provision for losses on accounts receivable.............       1,712       1,034         570
     Changes in operating assets and liabilities:
       Increase in trade accounts receivable.................      (5,858)     (1,788)       (585)
       Increase in inventories...............................      (1,829)       (542)       (282)
       Increase in other current assets......................      (2,546)       (190)       (342)
       Decrease in other assets..............................       4,088          --          --
       Increase in trade payables and other accrued expenses
          and liabilities....................................       4,371       2,955       3,031
                                                                 --------    --------    --------
          Net cash provided by operating activities..........         160      12,470      11,952
                                                                 --------    --------    --------
INVESTING ACTIVITIES:
  Purchase of equipment, net.................................     (14,534)     (9,773)     (2,811)
  Purchase of pagers, net of disposals.......................     (28,251)     (6,998)     (4,901)
  Acquisitions, net of cash acquired.........................     (97,514)    (70,189)    (36,828)
  Computer system software, product enhancements and other
     intangible assets.......................................      (1,663)     (1,591)       (812)
  Other......................................................        (531)       (455)        (21)
                                                                 --------    --------    --------
          Net cash used in investing activities..............    (142,493)    (89,006)    (45,373)
                                                                 --------    --------    --------
FINANCING ACTIVITIES:
  Senior subordinated debt offering-net......................          --      95,583          --
  Sale of common stock-net...................................      94,644          --      28,916
  Bank debt..................................................      97,300      39,900      35,100
  Payments on bank debt......................................     (48,000)    (49,400)    (29,000)
  Exercise of incentive stock options for common stock.......          65       1,494         267
  Debt financing costs.......................................      (9,422)     (1,469)     (1,449)
  Other......................................................        (122)        (84)       (277)
                                                                 --------    --------    --------
          Net cash provided by financing activities..........     134,465      86,024      33,557
                                                                 --------    --------    --------
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS.............      (7,868)      9,488         136
CASH AND CASH EQUIVALENTS:
     Beginning of year.......................................      10,154         666         530
                                                                 --------    --------    --------
     End of year.............................................   $   2,286    $ 10,154    $    666
                                                                 ========    ========    ========
</TABLE>
 
                See Notes to Consolidated Financial Statements.
 
                                      F-68
<PAGE>   211
 
                          PRONET INC. AND SUBSIDIARIES
 
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                              COMMON STOCK
                                             PAR VALUE $0.01
                                             ---------------                  RETAINED-     TREASURY STOCK
                                             SHARES     PAR     ADDITIONAL    EARNINGS     -----------------
                                             ISSUED    VALUE     CAPITAL      (DEFICIT)    SHARES     COST
                                             ------    -----    ----------    ---------    ------    -------
<S>                                          <C>       <C>      <C>           <C>          <C>       <C>
BALANCE at December 31, 1993..............    4,156    $  42     $  20,414    $   1,333      397     $(1,430)
  Net income..............................                                          693
  Exercise of incentive stock options.....       47                    267
  Sale of common stock....................    2,300       23        28,893
                                             ------    -----    ----------    ---------    ------    -------
BALANCE at December 31, 1994..............    6,503       65        49,574        2,026      397      (1,430)
  Net loss................................                                       (7,697)
  Exercise of incentive stock options.....      258        3         1,491                     1         (30)
  Common stock issued for acquisitions....      216        2         5,443
  Common stock issued for Employee Stock
     Purchase Plan........................       10                    109
                                             ------    -----    ----------    ---------    ------    -------
BALANCE at December 31, 1995..............    6,987       70        56,617       (5,671)     398      (1,460)
  Net loss................................                                      (40,043)
  Sale of common stock....................    4,000       40        94,604
  Exercise of incentive stock options.....        7                     65
  Common stock issued for acquisitions....    1,854       19        29,125
  Common stock issued for Employee Stock
     Purchase Plan........................       23                    283
                                             ------    -----    ----------    ---------    ------    -------
BALANCE at December 31, 1996..............   12,871    $ 129     $ 180,694    $ (45,714)     398     $(1,460)
                                             ======     ====      ========     ========    =====     =======
</TABLE>
 
                See Notes to Consolidated Financial Statements.
 
                                      F-69
<PAGE>   212
 
                          PRONET INC. AND SUBSIDIARIES
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                 YEARS ENDED DECEMBER 31, 1996, 1995, AND 1994
 
NOTE A -- ACCOUNTING POLICIES
 
     Preparation of Financial Statements:  The preparation of financial
statements in conformity with generally accepted accounting principles requires
management to make estimates and assumptions that affect the reported amounts of
assets and liabilities and disclosure of contingent assets and liabilities at
the date of the financial statements and the reported amounts of revenues and
expenses during the reporting periods. Actual results could differ from those
estimates.
 
     Consolidation:  The consolidated financial statements include the accounts
of ProNet Inc. and its wholly-owned subsidiaries. All significant intercompany
accounts and transactions have been eliminated.
 
     Cash Equivalents:  Cash equivalents are recorded at cost, which
approximates market, and include investments in financial instruments having
maturities of three months or less at the time of purchase.
 
     Inventories:  Inventories are valued at the lower of first-in, first-out
(FIFO) cost or market and consist primarily of finished goods.
 
     Equipment:  Equipment is recorded at cost. Depreciation is computed by the
straight-line method over the estimated useful lives of the assets.
Communication equipment and security systems' equipment are depreciated over a
ten-year period. Pagers and office equipment are depreciated over a three- to
five-year in-service period.
 
     Other Assets:  Other assets include goodwill, noncompetition agreements,
debt financing costs, customer lists, patents, software purchased for internal
use and other intangible assets, all of which are amortized using the
straightline method over five- to fifteen-year periods. Goodwill, currently
being amortized on a straight-line basis over a fifteen-year period, is net of
accumulated amortization of $15.6 million and $5.7 million at December 31, 1996
and 1995, respectively. The noncompetition agreements are amortized using the
straight-line method over the terms of the agreements, generally five years.
Debt financing costs consist of costs incurred in connection with the Company's
senior subordinated notes and revolving line of credit and are being amortized
over periods not to exceed the terms of the related agreements. Amortization of
the FCC licenses is deferred while the related system is not operational.
Management regularly reviews remaining goodwill and other assets with
consideration toward recovery through future operating results (undiscounted) at
the current rate of amortization.
 
     Revenue Recognition:  Revenue is recognized as earned over the contract
terms.
 
     Federal Income Taxes:  Taxes are reported under the liability method;
accordingly, deferred tax assets and liabilities are determined based on
differences between financial reporting and tax bases of assets and liabilities
and are measured using the enacted tax rates and laws that will be in effect
when the differences are expected to reverse.
 
     Net Income (Loss) Per Share:  Net income (loss) per share is based on the
weighted average number of common and common equivalent shares outstanding
during each period. Stock options are considered common stock equivalents, if
dilutive, for purposes of computing weighted average shares outstanding.
 
     Concentration of Credit Risk:  The Company provides paging services to
businesses, individual consumers, medical institutions and health care
professionals and specialized security devices to financial institutions, most
of which are in major metropolitan areas. The Company performs periodic credit
evaluations of its customers' financial condition and generally does not require
significant collateral. Receivables generally are due within 30 days. Credit
losses relating to its customers consistently have been within management's
expectations.
 
     Sources of Supply of Material:  The Company does not manufacture any of the
transmitting and computer equipment or pagers used in providing its paging
services, but instead purchases such equipment and
 
                                      F-70
<PAGE>   213
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE A -- ACCOUNTING POLICIES -- (CONTINUED)
pagers from multiple sources. The Company anticipates that such equipment and
pagers will continue to be available in the foreseeable future, subject to
normal manufacturing and delivery lead times. Because of the high degree of
compatibility among different models of transmitters, computers and other paging
equipment manufactured by multiple suppliers, the Company is able to design its
systems without depending upon any single source of equipment. The Company
continuously evaluates new developments in paging technology in connection with
the design and enhancement of its paging systems and the selection of products
and services to be offered to its subscribers.
 
     In order to achieve significant cost savings from volume purchases, the
Company currently purchases most of its pagers from Motorola. The Company
purchases its transmitters from two competing sources and its paging terminals
from Glenayre, a manufacturer of mobile communications equipment. The paging
system equipment in existing markets has significant capacity for future growth.
 
     All equipment used in the security systems business is assembled by the
Company with some sub-assemblies manufactured to Company specifications by
outside vendors. The materials required for TracPacs and other tracking
equipment are readily available from several sources.
 
     Derivative Financial Instruments:  The Company has only limited involvement
with derivative financial instruments and does not use them for trading
purposes. Derivative financial instruments are only used to manage interest rate
risks.
 
     The Company may from time to time enter into interest rate swap agreements
which would be accounted for as a hedge of an obligation and, accordingly, the
net swap settlement amount would be recorded as an adjustment to interest
expense in the period incurred (see Note C -- Long Term Debt). Gains and losses
upon settlement of a swap agreement would be deferred and amortized over the
remaining term of the agreement.
 
     Reclassification of Financial Statements:  The 1994 and 1995 financial
statements have been reclassified to conform to the 1996 financial statement
presentation.
 
NOTE B -- BALANCE SHEET DETAIL
 
     Other current assets consist of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                             DECEMBER 31,
                                                                           ----------------
                                                                            1996      1995
                                                                           ------    ------
    <S>                                                                    <C>       <C>
    Security transmitter TracPacs.......................................   $1,273    $1,217
    Other...............................................................    1,226       720
                                                                           ------    ------
                                                                           $2,499    $1,937
                                                                           ======    ======
</TABLE>
 
                                      F-71
<PAGE>   214
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE B -- BALANCE SHEET DETAIL -- (CONTINUED)
     Goodwill and other assets consist of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                           DECEMBER 31,
                                                                       --------------------
                                                                         1996        1995
                                                                       --------    --------
    <S>                                                                <C>         <C>
    Goodwill........................................................   $164,786    $108,153
    Noncompetition agreements.......................................      9,804       4,750
    Debt financing costs............................................     11,034       6,980
    FCC licenses....................................................     34,665         150
    Other...........................................................     10,165       6,367
                                                                       --------    --------
                                                                        230,454     126,400
    Less accumulated amortization...................................     22,297       9,266
                                                                       --------    --------
                                                                       $208,157    $117,134
                                                                       ========    ========
</TABLE>
 
     Other accrued expenses and liabilities consist of the following (in
thousands):
 
<TABLE>
<CAPTION>
                                                                            DECEMBER 31,
                                                                         ------------------
                                                                          1996       1995
                                                                         -------    -------
    <S>                                                                  <C>        <C>
    Deferred revenue..................................................   $ 6,205    $ 4,891
    Customer deposits.................................................     2,857      2,604
    Accrued interest..................................................     1,285      1,002
    Other.............................................................     2,917      2,027
                                                                         -------    -------
                                                                         $13,264    $10,524
                                                                         =======    =======
</TABLE>
 
NOTE C -- LONG-TERM DEBT
 
     Long-term debt consists of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                           DECEMBER 31,
                                                                        -------------------
                                                                          1996       1995
                                                                        --------    -------
    <S>                                                                 <C>         <C>
    Senior subordinated notes........................................   $ 99,391    $99,319
    Revolving line of credit.........................................     49,300         --
                                                                        --------    -------
                                                                         148,691     99,319
    Less current maturities..........................................         --         --
                                                                        --------    -------
                                                                        $148,691    $99,319
                                                                        ========    =======
</TABLE>
 
     In June 1995, the Company completed a Rule 144A Offering of $100 million
principal amount of its 11 7/8% senior subordinated notes due 2005. Proceeds to
the Company from the sale of the 1995 Notes, after deducting discounts,
commissions and offering expenses, were approximately $95.6 million. The Company
used approximately $49.4 million of the net proceeds to repay all indebtedness
outstanding under the 1995 Credit Facility. The Company used the remaining
proceeds to pursue the Company's acquisition strategy, to purchase frequency
rights, to make capital expenditures for buildout of the Company's regional
paging systems and for enhanced services, and for working capital and general
corporate purposes. The fair value of the 1995 Notes at December 31, 1996 was
$93.5 million based on a quoted market price.
 
     The 1995 Notes are general unsecured obligations of the Company and are
subordinated to all existing and future senior debt of the Company. The
Indenture provides that the Company may not incur any debt that is subordinate
in right of payment to the senior debt and senior in right of payment to the
1995 Notes. The
 
                                      F-72
<PAGE>   215
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE C -- LONG-TERM DEBT -- (CONTINUED)
Indenture also contains certain covenants that, among other things, limit the
ability of the Company and its subsidiaries to incur indebtedness, pay
dividends, engage in transactions with affiliates, sell assets and engage in
certain other transactions. Interest on the 1995 Notes is payable in cash
semi-annually each June 15 and December 15, commencing December 15, 1995. The
1995 Notes are not redeemable at the Company's option prior to June 15, 2000.
 
     The Company filed the 1995 S-4 on July 7, 1995 to register the 1995 Notes
with the SEC under the Securities Act. On October 6, 1995, the SEC declared the
1995 S-4 effective.
 
     In June 1995, the Company entered into an agreement with The First National
Bank of Chicago, as Agent, making available a $125 million revolving line of
credit for working capital purposes and for acquisitions approved by the Lender.
Under the terms of the 1995 Credit Facility, the revolving line of credit would
have converted in February 1997 to a five and one-half year term loan maturing
in July 2002. Borrowings were secured by all assets of the Company and its
subsidiaries. The 1995 Credit Facility required maintenance of certain specified
financial and operating covenants and prohibited the payment of dividends or
other distributions on the Company's Common Stock. The 1995 Credit Facility also
permitted the issuance of senior subordinated notes and stated that in the event
of an issuance of subordinated indebtedness of the Company or an equity issuance
(other than the common stock offering which occurred in 1994), the Lender could
request that some portion of the proceeds be used to pay down outstanding
borrowings under the 1995 Credit Facility.
 
     In June 1996, the Company repaid the $48 million outstanding under the 1995
Credit Facility with proceeds from the Offering.
 
     Also in June 1996, the Company entered into a new agreement with the Lender
for $300 million senior secured credit facilities, to be used to finance
non-hostile acquisitions of paging businesses, capital expenditures and general
corporate purposes. The Former Credit Facilities were amended in September 1996
reducing the amount of credit available from $300 million under the Former
Credit Facilities to $150 million under the Credit Facilities. The $150 million
under the Credit Facilities consist of a $25 million revolving line of credit
maturing December 31, 2003. The borrowings bear interest, at the Company's
designation, at either (i) the ABR plus a margin of up to 1.5%, or (ii) the
Eurodollar Base Rate plus a margin of up to 2.75%. The term loan will be payable
in quarterly installments, based on the principal amount outstanding on the
conversion date, in amounts ranging from 7% initially to 20%. Loans bearing
interest based on ABR may be prepaid at any time, and loans bearing interest
based on the Eurodollar Rate may not be paid prior to the last day of the
applicable interest period. A commitment fee of either .375% or .5% on the
average daily unused portion of the Credit Facilities is required to be paid
quarterly. Borrowings are secured by all assets of the Company and its
subsidiaries. The Credit Facilities require maintenance of certain specified
financial and operating covenants and prohibit the payment of dividends on the
Common Stock. The Credit Facilities also state that in the event of an issuance
of subordinated indebtedness of the Company or an equity issuance (other than
the Offering), the Lender can require that some portion of the proceeds be used
to make payments on outstanding borrowings under the Credit Facilities.
 
     At December 31, 1996, the Company had approximately $9.9 million of
available funds under the Credit Facilities, based on financial and operating
covenants.
 
     Effective August 13, 1996, the Lender began requiring interest exchange or
insurance agreements or other financial accommodations with one or more
financial institutions providing for an agreed upon fixed rate of interest on at
least 50% of the total indebtedness. At December 31, 1996, approximately 67% of
the total indebtedness was at a fixed rate of interest.
 
                                      F-73
<PAGE>   216
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE C -- LONG-TERM DEBT -- (CONTINUED)
     The weighted average interest rate on the outstanding 1995 Notes and line
of credit during 1996 and 1995 was 11.5% and 12.9%, respectively. Total interest
paid was $15.0 million, $7.8 million and $1.7 million for 1996, 1995 and 1994,
respectively.
 
NOTE D -- DEFERRED CREDITS
 
     Deferred credits consist of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                            DECEMBER 31,
                                                                          -----------------
                                                                           1996      1995
                                                                          ------    -------
    <S>                                                                   <C>       <C>
    Deferred payments..................................................   $5,660    $18,495
    Deferred tax liability.............................................       --        688
                                                                          ------    -------
                                                                          $5,660    $19,183
                                                                          ======    =======
</TABLE>
 
     At December 31, 1996, the Company had deferred payments outstanding related
to the Page One and SigNet Raleigh acquisitions of $4.86 million and $800,000,
respectively, which are due and payable one year from the closing of the
respective transactions. In January 1997, the Company paid $4.9 million in cash
and issued 46,232 shares of its Common Stock in payment of $5.7 million of the
Page One and SigNet Raleigh deferred payments, respectively. The balances are
payable, at the Company's discretion, either in cash or shares of the Company's
Common Stock based on current market value at the date of payment.
 
     In 1995, the Company issued 44,166 shares of its Common Stock to ChiComm in
payment of the $950,000 deferred portion of the purchase price of ChiComm and
deferred $18.5 million in payments related to various acquisitions. In 1996, the
Company paid $1.0 million in cash and issued 769,664 shares of its Common Stock
in payment of $18.5 million of various deferred payments and deferred $5.7
million in payments related to various acquisitions.
 
     In July 1995, the Company filed a Form S-3 Registration Statement (the
"1995 S-3") to register the resale of 2,000,000 shares of the Common Stock
issued in payment of the purchase prices or deferred payments related to the
purchase prices for the Company's acquisitions.
 
     In October 1996, the Company filed a Form S-3 Registration Statement (the
"1996 S-3") to register the resale of 1,500,000 shares of its Common Stock in
payment of the purchase prices or deferred payments related to the purchase
prices for the Company's acquisitions.
 
NOTE E -- INCOME TAXES
 
     At December 31, 1996, net operating loss carry forwards of $45.7 million
were available to reduce income taxes and expire in years 2005 through 2011.
 
     The valuation allowance increased during 1996 in recognition of the
Company's 1996 operating losses and management's belief that the realization of
the deferred tax asset in the near term is remote.
 
                                      F-74
<PAGE>   217
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE E -- INCOME TAXES -- (CONTINUED)
     Significant components of deferred tax liabilities and assets are as
follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                                DECEMBER 31,
                                                                             ------------------
                                                                              1996       1995
                                                                             -------    -------
<S>                                                                          <C>        <C>
Deferred tax liabilities:
     Tax over book depreciation...........................................   $(3,197)   $(2,343)
     Other -- net.........................................................    (1,002)      (575)
                                                                             -------    -------
          Total deferred tax liabilities..................................    (4,199)    (2,918)
Deferred tax assets:
     Net operating loss carry forwards....................................    15,540      3,727
     Alternative minimum tax credit.......................................       652        225
     Investment tax credit................................................        69        147
     Other -- net.........................................................     1,442      2,236
                                                                             -------    -------
          Total deferred tax assets.......................................    17,703      6,335
     Valuation allowance for deferred tax assets..........................   (13,504)    (4,105)
                                                                             -------    -------
     Net of valuation allowance...........................................     4,199      2,230
                                                                             -------    -------
Net deferred tax liabilities..............................................   $     0    $  (688)
                                                                             =======    =======
</TABLE>
 
     Significant components of the provision for income taxes are as follows (in
thousands):
 
<TABLE>
<CAPTION>
                                                                           1996     1995    1994
                                                                          ------    ----    ----
<S>                                                                       <C>       <C>     <C>
Federal current tax expense............................................   $   --    $ --    $506
Current benefits from investment tax credits...........................       --      --      --
Federal deferred tax expense (benefit).................................     (688)     --     293
State income taxes.....................................................    1,011      78      96
                                                                          ------    ----    ----
                                                                          $  323    $ 78    $895
                                                                          ======    ====    ====
</TABLE>
 
     The reconciliation of income tax computed at the U.S. federal statutory tax
rates to income tax expense is as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                                       1996       1995      1994
                                                                     --------    -------    ----
<S>                                                                  <C>         <C>        <C>
Tax expense (benefit) at U.S. statutory rates.....................   $(13,505)   $(2,590)   $540
Non-deductible goodwill amortization..............................      1,036        633     298
Net operating losses with no benefit(1)...........................     12,469      1,138      --
Change in valuation allowance.....................................       (688)     1,323     (19)
State income taxes, net of Federal benefit........................      1,011         51      63
Other.............................................................         --       (477)     13
                                                                     --------    -------    ----
                                                                     $    323    $    78    $895
                                                                     ========    =======    ====
</TABLE>
 
- ---------------
(1) Excludes benefit from stock options exercised.
 
     Federal income tax paid amounted to $0, $132,000 and $755,000 in 1996, 1995
and 1994, respectively. Payments made in 1995 were refunded to the Company in
the first quarter of 1996. In 1996, 1995 and 1994, $65,000, $156,000 and
$112,000 in state income taxes were paid, respectively.
 
                                      F-75
<PAGE>   218
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE F -- STOCKHOLDERS' EQUITY
 
     Twenty million shares of common stock, $.01 par value, and five million
shares of preferred stock, $1.00 par value, were authorized to be issued at
December 31, 1996 and 1995. As of December 31, 1996, no shares of preferred
stock had been issued.
 
     In July 1995, the Company filed the 1995 S-3 to register the resale of
2,000,000 shares of its Common Stock issued in payment of various purchase
prices and deferred payments related to acquisitions. In August 1995, the
Company issued 44,166 shares of Common Stock in payment of the $950,000 deferred
payment to ChiComm. In December 1995, the Company issued 172,282 shares of
Common Stock in payment for $4.5 million of the purchase price of Apple. In
1996, the Company issued 181,524 shares of Common Stock in payment for $4.9
million of the purchase price of various acquisitions, 769,664 shares of Common
Stock in payment of $17.4 million of deferred payments of various acquisitions
and 5,000 shares of Common Stock in payment of consulting services relating to
an acquisition.
 
     In June 1996, the Company issued four million shares of its Common Stock at
a price of $25 per share in an underwriters public offering. If this offering
had occurred as of the beginning of 1996, net loss per share would have been
$3.48 for the year ended December 31, 1996.
 
     In October 1996, the Company filed the 1996 S-3 to register the resale of
1,500,000 shares of its Common Stock issued in payment of the purchase prices or
deferred payments related to the purchase prices for the Company's acquisitions.
In October 1996, the Company issued 897,771 shares of Common Stock in payment
for $6.8 million of the purchase price of CalPage.
 
     Total shares of common stock reserved for future issuance under stock
option plans, the 1995 S-3 and the 1996 S-3 were 3,338,661 and 3,722,615 at
December 31, 1996 and 1995, respectively.
 
NOTE G -- STOCK OPTION PLANS
 
  The 1987 Stock Option Plan
 
     Under the 1987 Stock Option Plan, as amended ("1987 Plan"), the Board of
Directors may grant incentive and non-incentive stock options to key employees
for the purchase of up to 1.2 million shares of Common Stock at the fair market
value of a share of Common Stock on the date the option is granted, and the term
of each option will not exceed ten years. Due to a reduction in the trading
price of the Common Stock, in December 1996 all outstanding options with an
exercise price greater than $6.00 were re-priced at $6.00 to provide further
incentive to the Company's employees.
 
     At December 31, 1996, incentive stock options for 40,325 shares which vest
over a three-year period, 5,000 shares which vest over a four-year period and
764,100 shares which vest over a five-year period were outstanding. These
outstanding options had a weighted average remaining contractual life of 6.2
years and weighted average exercise price of $5.80. There were 811,657 and
818,777 shares of Common Stock reserved for future issuance and exercise of
outstanding options under the 1987 Plan at December 31, 1996 and 1995,
respectively. Of the outstanding options, 448,925 and 334,045 shares were
exercisable at December 31, 1996 and 1995, respectively.
 
                                      F-76
<PAGE>   219
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE G -- STOCK OPTION PLANS -- (CONTINUED)
     Stock option activity was as follows:
 
<TABLE>
<CAPTION>
                                                                    NUMBER OF    OPTION PRICE
                                                                     SHARES       PER SHARE
                                                                    ---------    ------------
    <S>                                                             <C>          <C>
    Options outstanding at December 31, 1993.....................     696,130    $2.75-$7.63
         Options granted.........................................     395,000    11.00-14.75
         Options exercised.......................................     (39,570)    2.75-7.63
         Options canceled........................................     (37,250)    5.38-7.63
                                                                    ---------
    Options outstanding at December 31, 1994.....................   1,014,310     2.75-14.75
         Options granted.........................................      39,500    14.25-20.25
         Options exercised.......................................    (258,065)    2.75-11.13
         Options canceled........................................     (17,900)    5.38-11.00
                                                                    ---------
    Options outstanding at December 31, 1995.....................     777,845     2.75-20.25
         Options granted.........................................      53,000       20.875
         Options exercised.......................................      (7,120)    5.38-14.75
         Options canceled........................................     (14,300)    7.63-18.50
                                                                    ---------
    Options outstanding at December 31, 1996.....................     809,425     2.75-6.00
                                                                     ========
</TABLE>
 
THE NON-EMPLOYEE DIRECTOR STOCK OPTION PLAN
 
     The Non-Employee Director Stock Option Plan, approved in July 1991,
authorized 37,500 shares of Common Stock for issuance under the plan and
provides for a one-time grant of options for the purchase of 7,500 shares of
Common Stock to non-employee directors of the Company.
 
     The per share exercise price for shares subject to each option is the fair
market value of the Common Stock at the date of grant. The option shall be
exercisable in full after the completion of six months of continuous service on
the Board of Directors after the date of grant, and the term of each option is
ten years. At December 31, 1996, there were options outstanding and exercisable
for 15,000 shares at an option price per share of $6.00. At December 31, 1996,
these outstanding options had a weighted average remaining contractual life of
5.0 years. At December 31, 1995, there were options outstanding and exercisable
for 15,000 shares at an option price per share of $7.63 and 7,500 shares at an
option price per share of $6.88.
 
     In May 1991, under a separate agreement, a one-time grant of options for
the purchase of 7,500 shares of Common Stock was made to a non-employee
director. The options became fully exercisable at the date of grant and were
outstanding at December 31, 1996 and 1995, with per share prices of $6.00 and
$7.63, respectively. At December 31, 1996, these outstanding options had a
weighted average remaining contractual life of 4.5 years.
 
     Due to a reduction in the trading price of the Common Stock, in December
1996 all outstanding options with an exercise price greater than $6.00 were
repriced at $6.00 to provide further incentive to the Company's non-employee
directors.
 
  1994 Employee Stock Purchase Plan
 
     In May 1994, the Company's Board of Directors and stockholders approved an
Employee Stock Purchase Plan ("Stock Purchase Plan") that became effective July
1, 1994. A total of 100,000 shares of Common Stock are reserved for issuance
under the Stock Purchase Plan. Employees who work at least 20 hours per week and
more than five months in a calendar year are eligible to participate in the
Stock Purchase Plan and may contribute up to 15% of their base pay. At the end
of each six-month offering period, participants may
 
                                      F-77
<PAGE>   220
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE G -- STOCK OPTION PLANS -- (CONTINUED)
purchase the Company's common stock at a 15% discount of the fair market value
of the stock on the first or last day of the offering period, whichever is
lower.
 
     In 1995, 4,244 and 5,470 shares were purchased with payroll deductions
withheld during the six month offering periods ending December 31, 1994 and June
30, 1995, respectively. In 1996, 6,571 and 16,304 shares were purchased with
payroll deductions withheld during the six month offering periods ending
December 31, 1995 and June 30, 1996, respectively. On January 3, 1997, 47,834
shares were purchased with payroll deductions withheld during the six month
offering period ending December 31, 1996.
 
  1995 Long-Term Incentive Plan
 
     In May 1995, the Company's Board of Directors and Stockholders approved the
1995 Long-Term Incentive Plan (the "1995 Plan") under which the Board of
Directors may grant incentive and non-incentive stock options, restricted stock
awards and stock appreciation rights to key employees and non-incentive stock
options to non-employee directors of the Company totaling 1,000,000 shares of
Common Stock to be issued. Grants to key employees will expire ten years after
the date of grant. Incentive stock options will have an exercise price of the
fair value of a share of Common Stock at the date the option is granted.
Non-incentive stock options, restrictive stock awards and stock appreciation
rights will have an exercise price as specified in their award agreement.
 
     Under the 1995 Plan, on an annual basis each non-employee director of the
Company will be automatically granted non-incentive stock options to purchase
2,500 shares of Common Stock, beginning in 1995. The per share exercise price
for shares subject to each option is the fair market value of the Common Stock
at the date of grant. The option shall become vested and exercisable over a
three year period, and the term of each option is ten years.
 
     Due to a reduction in the trading price of the Common Stock in December
1996, all outstanding options with an exercise price greater than $6.00 were
repriced at $6.00 to provide further incentive to the Company's employees.
 
     At December 31, 1996, incentive stock options for 177,000 shares which vest
over a one year period, 45,000 shares which vest over a three year period and
396,000 shares which vest over a five year period were outstanding. These
outstanding options had a weighted average remaining contractual life of 9.5
years and a weighted average exercise price of $6.00. There were 1,000,000
shares of Common Stock reserved for future issuance and exercise of outstanding
options under the 1995 Plan at both December 31, 1996 and 1995. Of the
outstanding options, 2,499 shares were exercisable at December 31, 1996. None of
the outstanding options were exercisable at December 31, 1995.
 
                                      F-78
<PAGE>   221
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE G -- STOCK OPTION PLANS -- (CONTINUED)
     Stock option activity was as follows:
 
<TABLE>
<CAPTION>
                                                                 NUMBER OF    OPTION PRICE
                                                                  SHARES       PER SHARE
                                                                 ---------    ------------
        <S>                                                      <C>          <C>
        Options outstanding at December 31, 1994..............         --          --
             Options granted..................................     10,000        $18.25
             Options exercised................................         --          --
             Options canceled.................................         --          --
                                                                 ---------    ------------
        Options outstanding at December 31, 1995..............     10,000        18.25
             Options granted..................................    649,500      5.63-27.50
             Options exercised................................         --          --
             Options canceled.................................    (41,500)     7.56-23.38
                                                                 ---------    ------------
        Options outstanding at December 31, 1996..............    618,000      5.63-6.00
                                                                 ========      =========
</TABLE>
 
  Fair Value of Options
 
     The Company has elected to follow Accounting Principles Board Opinion No.
25, "Accounting for Stock Issued to Employees" ("APB 25") and related
Interpretations in accounting for its employee stock options, because, as
discussed below, the alternative fair value accounting provided for under FASB
Statement No. 123, "Accounting for Stock-Based Compensation" ("FAS 123"),
requires the use of option valuation models that were not developed for use in
valuing employee stock options. Under APB 25, because the exercise price of the
Company's employee stock option equals or exceeds the market price of the
underlying stock on the date of grant, no compensation expense is recognized.
 
     Pro forma information regarding net income and earnings per share is
required by FAS 123, and has been determined as if the Company had accounted for
its employee stock options under the fair value of that statement. The fair
value for these options was estimated at the date of grant using a Black-Scholes
option pricing model with the following weighted average assumptions for 1996
and 1995, respectively: risk-free interest rates of 6.1% and 7.2%; no dividend
yield; a volatility factor of the expected market price of the Company's Common
Stock of 0.6; and a weighted-average expected life of the option of 5.5 years.
The weighted average grant-date fair value and exercise price of options granted
during 1996 was $2.61 and $5.63, respectively, for options whose exercise price
equals the market price of the Company's Common Stock on the date of grant, and
$1.98 and $6.00, respectively, for options whose exercise price exceeds the
market price of the Company's Common Stock on the date of grant. The weighted
average grant-date fair value and exercise price of options granted during 1995
was $9.21 and $15.83, respectively, with all option exercise prices equaling the
fair value of the Company's Common Stock on the date of grant.
 
     The Black-Scholes option valuation model was developed for use in
estimating the fair value of traded options which have no vesting restrictions
and are fully transferable. In addition, option valuation models require the
input of highly subjective assumptions including the expected stock price
volatility. Because the Company's employee stock options have characteristics
significantly different than those of the traded Common Stock, and because
changes in the subjective input assumptions can materially affect the fair value
estimate, in management's opinion, the existing models do not necessarily
provide a reliable measure of the fair value of its employees stock options.
 
                                      F-79
<PAGE>   222
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE G -- STOCK OPTION PLANS -- (CONTINUED)
     For purposes of pro forma disclosures, the estimated fair value of the
options is amortized to expense over the options' vesting period. The Company's
unaudited pro forma information follows (in thousands except for per share
information):
 
<TABLE>
<CAPTION>
                                                                      DECEMBER 31,
                                                                  ---------------------
                                                                    1996         1995
                                                                  ---------    --------
        <S>                                                       <C>          <C>
        Net loss...............................................   $(40,417)    $(7,761)
        Net loss per share.....................................      (4.11)      (1.24)
</TABLE>
 
These pro forma disclosures are not likely to be representative of the effects
on reported net income(loss) for future years, as these calculations only
include options granted in 1995 and thereafter as required by FAS 123. The
effect of the stock option repricing in December 1996 is not shown due to its
immateriality.
 
NOTE H -- EMPLOYEE SAVINGS PLAN
 
     The Company sponsors an employee savings plan that covers all employees who
have worked for the Company for more than one year. Employee contributions range
from 2% to 10%, up to the limits defined by Section 401(k) of the Internal
Revenue Code. In 1996, 1995 and 1994, the Company contributed $130,000, $71,000
and $43,000, respectively, to the plan which represents 25%, 20% and 15% of all
employee contributions.
 
NOTE I -- SEGMENT INFORMATION
 
     The Company provides communication products and enhanced services to
organizations and individuals requiring wireless communication applications. The
Company provides these specialized products through two distinct operating
segments: the paging systems' operations and the security systems' operations.
The paging systems' operations provide paging services to businesses, medical
institutions and individual consumers in major metropolitan areas of the United
States. The security systems' operations provide specialized security services
to financial institutions and retail operations throughout the United States.
 
TOTAL REVENUES: Total revenues consist of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                      YEAR ENDED DECEMBER 31,
                                                                   ------------------------------
                                                                     1996       1995       1994
                                                                   --------    -------    -------
<S>                                                                <C>         <C>        <C>
Service revenues:
     Pager lease and access fees................................   $ 81,368    $50,805    $28,015
     Security systems' equipment fees...........................      5,871      5,303      5,064
                                                                   --------    -------    -------
                                                                     87,239     56,108     33,079
Product sales:
     Pager and paging equipment.................................     15,776      9,899      6,506
     Other security systems' income.............................         41        137        133
                                                                   --------    -------    -------
                                                                     15,817     10,036      6,639
                                                                   --------    -------    -------
     Total revenues.............................................   $103,056    $66,144    $39,718
                                                                   ========    =======    =======
</TABLE>
 
     Operating income is revenue less expenses exclusive of general corporate
expenses, corporate related depreciation and amortization and other income
(expense). Identifiable assets are those assets used in the operations of each
business segment. Corporate assets consist primarily of short-term cash
investments, software, debt financing costs and corporate office equipment.
During 1994, the Company restructured its technical, sales and operational
functions into its decentralized SuperCenter strategy. Certain costs that were
 
                                      F-80
<PAGE>   223
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE I -- SEGMENT INFORMATION -- (CONTINUED)
previously classified as general corporate expenses in 1994 were classified as
paging systems' or security systems' expenses in 1995. Thus, operating income
before general corporate expenses for paging systems' and security systems'
operations decreased in 1995 from 1994 as costs were allocated from general
corporate expenses. Segment data at and for the years ended December 31, 1996,
1995 and 1994 follows (in thousands).
 
<TABLE>
<CAPTION>
                                                       PAGING       SECURITY     ADJUSTMENTS
                                                      SYSTEMS'      SYSTEMS'         AND
                                                     OPERATIONS    OPERATIONS    ELIMINATIONS    CONSOLIDATED
                                                     ----------    ----------    ------------    ------------
<S>                                                  <C>           <C>           <C>             <C>
1996
     Total revenues...............................    $  97,144     $  5,912        $   --         $103,056
     Cost of products sold........................      (13,238)          (6)                       (13,244)
                                                       --------      -------        ------         --------
                                                      $  83,906     $  5,906        $   --         $ 89,812
     Operating income (loss) before general
       corporate expenses.........................    $ (18,253)    $  2,809        $   --         $(15,444)
     General corporate expenses...................                                                   (9,191)
     Interest and other income....................                                                      285
     Interest expense.............................                                                  (15,370)
                                                       --------      -------        ------         --------
     Income before income taxes...................                                                 $(39,720)
                                                       ========      =======        ======         ========
     Identifiable assets at December 31, 1996.....    $ 278,983     $ 12,307        $   --         $291,290
     Corporate assets.............................                                                   20,426
                                                       --------      -------        ------         --------
     Total assets at December 31, 1996............                                                 $311,716
                                                       ========      =======        ======         ========
     Capital expenditures.........................    $  13,602     $    932        $   --         $ 14,534
     Depreciation and amortization................       36,896        1,450         2,278           40,624
1995
     Total revenues...............................    $  60,704     $  5,440        $   --         $ 66,144
     Cost of products sold........................       (9,357)         (64)           --           (9,421)
                                                       --------      -------        ------         --------
                                                      $  51,347     $  5,376        $   --         $ 56,723
     Operating income before general corporate
       expenses...................................    $   4,384     $  2,295        $   --         $  6,679
     General corporate expenses...................                                                   (6,949)
     Interest and other income....................                                                    1,291
     Interest expense.............................                                                   (8,640)
                                                       --------      -------        ------         --------
     Loss before income taxes.....................                                                 $ (7,619)
                                                       ========      =======        ======         ========
     Identifiable assets at December 31, 1995.....    $ 153,825     $ 10,678        $   --         $164,503
     Corporate assets.............................                                                   22,466
                                                       --------      -------        ------         --------
     Total assets at December 31, 1995............                                                 $186,969
                                                       ========      =======        ======         ========
     Capital expenditures.........................    $   8,425     $  1,348        $   --         $  9,773
     Depreciation and amortization................       16,159        1,454         1,049           18,662
</TABLE>
 
                                      F-81
<PAGE>   224
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE I -- SEGMENT INFORMATION -- (CONTINUED)
 
<TABLE>
<CAPTION>
                                                       PAGING       SECURITY     ADJUSTMENTS
                                                      SYSTEMS'      SYSTEMS'         AND
                                                     OPERATIONS    OPERATIONS    ELIMINATIONS    CONSOLIDATED
                                                     ----------    ----------    ------------    ------------
<S>                                                  <C>           <C>           <C>             <C>
1994
     Total revenues...............................    $  34,521     $  5,197        $   --         $ 39,718
     Cost of products sold........................       (6,605)         (39)           --           (6,644)
                                                       --------      -------        ------         --------
                                                      $  27,916     $  5,158        $   --         $ 33,074
     Operating income before general corporate
       expenses...................................    $   7,021     $  2,512        $   --         $  9,533
     General corporate expenses...................                                                   (6,344)
     Interest and other income....................                                                      173
     Interest expense.............................                                                   (1,774)
                                                       --------      -------        ------         --------
     Income before income taxes...................                                                 $  1,588
                                                       ========      =======        ======         ========
     Identifiable assets at December 31, 1994.....    $  59,878     $  9,721        $   --         $ 69,599
     Corporate assets.............................                                                    3,674
                                                       --------      -------        ------         --------
     Total assets at December 31, 1994............                                                 $ 73,273
                                                       ========      =======        ======         ========
     Capital expenditures.........................    $   2,082     $    729        $   --         $  2,811
     Depreciation and amortization................    $   6,393     $  1,226        $  955         $  8,574
</TABLE>
 
NOTE J -- COMMITMENTS
 
     The Company leases office space and transmitter sites under operating
leases expiring through 2003. Rent expense was $8,822,000, $4,514,000 and
$2,422,000 for the years ended December 31, 1996, 1995 and 1994, respectively.
Future minimum payments under non-cancelable operating leases are as follows (in
thousands):
 
<TABLE>
    <S>                                                                           <C>
    1997.......................................................................   $ 6,429
    1998.......................................................................     4,500
    1999.......................................................................     3,273
    2000.......................................................................     2,358
    2001.......................................................................       926
                                                                                  -------
                                                                                  $17,486
                                                                                  =======
</TABLE>
 
                                      F-82
<PAGE>   225
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE K -- QUARTERLY DATA (UNAUDITED)
 
     The following summarizes the quarterly operating results of the Company for
the years ended December 31, 1996 and 1995 (in thousands except per share
amounts).
 
<TABLE>
<CAPTION>
                                                                   THREE MONTHS ENDED
                                                                -------------------------
                                                   MARCH 31,    JUNE 30,    SEPTEMBER 30,    DECEMBER 31,
                                                   ---------    --------    -------------    ------------
<S>                                                <C>          <C>         <C>              <C>
1996
     Total revenues.............................    $24,162     $ 24,815       $25,477         $ 28,602
     Operating loss.............................     (2,492)     (10,246)       (3,714)          (8,183)
     Loss before income taxes...................     (6,124)     (14,047)       (7,364)         (12,185)
     Net loss...................................     (6,124)     (14,147)       (7,488)         (12,284)
     Net loss per share.........................       (.89)       (1.76)         (.65)            (.98)
1995
     Total revenues.............................    $12,684     $ 15,877       $17,759         $ 19,824
     Operating income (loss)....................        769          630           573           (2,242)
     Income (loss) before income taxes..........        424         (796)       (1,914)          (5,333)
     Net income (loss)..........................         66         (400)       (2,030)          (5,333)
     Net income (loss) per share................        .01         (.06)         (.32)            (.86)
</TABLE>
 
NOTE L -- ACQUISITIONS
 
The Completed Acquisitions, which were all accounted for as purchases, consisted
of the following:
 
<TABLE>
<CAPTION>
                                                                           PAGERS IN
          ACQUISITION                 LOCATION(S)         DATE CLOSED     SERVICE (1)    PURCHASE PRICE
- --------------------------------   ------------------   ---------------   -----------    --------------
<S>                                <C>                  <C>               <C>            <C>
Contact.........................   New York City        March 1994           91,000       $19.0 million
Radio Call......................   New York City        August 1994          57,000         7.8 million
ChiComm.........................   Chicago              August 1994          30,000         9.8 million
High Tech.......................   Chicago and Texas    December 1994         2,000         0.9 million
Signet Charlotte................   Charlotte            March 1995           30,000         9.0 million
Carrier.........................   New York City        April 1995           31,200         6.5 million
Metropolitan....................   Houston              May 1995            150,000        21.0 million
All City........................   Milwaukee            May 1995             20,000         6.3 million
Americom........................   Houston              July 1995            80,000        17.5 million
Lewis...........................   Georgia              September 1995       15,000         5.6 million
Gold Coast......................   Florida              September 1995        6,000         2.3 million
Paging & Cellular...............   Houston              October 1995              0(2)      9.5 million
Apple...........................   Chicago              December 1995        41,500        13.0 million
Sun.............................   Florida              January 1996         12,000         2.3 million
SigNet Raleigh..................   Raleigh              January 1996         13,000         8.7 million
Page One........................   Georgia              January 1996         30,000        19.7 million
AGR.............................   Florida              February 1996        50,000         6.5 million
Total...........................   Florida              February 1996        13,000         2.2 million
Williams........................   Florida              February 1996         6,500         2.7 million
Georgialina.....................   Georgia              October 1996         27,000        11.4 million
CalPage.........................   California           October 1996         45,000        17.2 million
                                                                          -----------    --------------
Total Completed Acquisitions....                                            750,200      $198.9 million
                                                                           ========        ============
</TABLE>
 
- ---------------
(1) At the date the acquisition closed.
 
(2) Paging & Cellular was the Company's largest reseller serving more than
    40,000 subscribers in Texas.
 
                                      F-83
<PAGE>   226
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE L -- ACQUISITIONS -- (CONTINUED)
     In 1996, the Company signed a definitive agreement involving the merger of
the Company and Teletouch. The Company also signed a letter of intent to
purchase substantially all of the assets of Ventures in Paging, L.C. ("VIP"). In
the third quarter of 1996, the Company along with Teletouch announced the
decision to terminate the Teletouch merger. Under the terms of the $120 million
10 7/8% senior subordinated notes due 2006 (the "1996 Notes"), the proceeds from
the sale of the 1996 Notes were held in escrow upon completion of the offering
in June 1996. The proceeds of such offering could only be used in connection
with the Teletouch merger, and accordingly, were not recorded on the Company's
financial statements pending the finalization of the merger. As a result of the
termination of the merger agreement with Teletouch, the escrow funds were used
to redeem the notes at 101% of the principal amount of the 1996 Notes at
maturity, plus accrued interest to the date of redemption. Nonrecurring charges
of approximately $8.8 million incurred by the Company in connection with the
proposed Teletouch merger were recorded during the year ended December 31, 1996.
These charges consist primarily of underwriting, advisory, legal and accounting
fees and merger financing costs. The Company also elected not to pursue the
acquisition of the assets of VIP.
 
     The Completed Acquisition's results of operations have been included in the
consolidated results of operations since the date of acquisition. The following
table presents the unaudited pro forma results of operations as if the
acquisitions had occurred at the beginning of each respective period presented.
The pro forma adjustments to sales and marketing and general and administrative
expenses represent expenses that either would or would not have been incurred
had the acquisitions occurred at the beginning of the periods presented. Pro
forma adjustments reflect additional depreciation and amortization expense based
on the fair value of the assets acquired as if the acquisitions had occurred at
the beginning of the periods presented. Pro forma adjustments also reflect
additional interest expense due to additional borrowings required to fund the
cash portion of the purchase price of each acquisition.
 
     The following unaudited pro forma results have been prepared for
comparative purposes only and do not purport to be indicative of what would have
occurred had the acquisitions been made as of those dates or of results which
may occur in the future (in thousands except for per share information):
 
<TABLE>
<CAPTION>
                                                                           DECEMBER 31,
                                                                       --------------------
                                                                         1996        1995
                                                                       --------    --------
    <S>                                                                <C>         <C>
    Total revenues..................................................   $112,529    $111,086
    Net loss........................................................    (42,246)    (17,854)
    Net loss per share..............................................      (3.47)      (1.55)
</TABLE>
 
     In 1996, the Company signed a definitive agreement to purchase all of the
outstanding capital stock of Modern. As further discussed in Note
N -- Subsequent Events, this acquisition was completed in March 1997 and was
accounted for as a purchase for an approximate cost of $9.2 million. Such
acquisition is not included in the pro forma results as shown above.
 
NOTE M -- LITIGATION
 
     The Company, its directors, and certain of its officers have been sued in
eight separate actions brought in the United States District Court for the
Northern District of Texas and the District Courts of Dallas County, Texas. The
actions pending in federal court are captioned: WERNER V. PRONET INC., AT AL.,
No. 3-96CV1795-P; MOLINA V. PRONET INC., ET AL., No. 3-96CV1972-R; SMITH, ET AL.
V. LEHMAN BROTHERS, ET AL., No. 3-96CV2116-H; L.L. CAPITAL PARTNERS L.P. V.
PRONET INC., ET AL., No. 3-96-CV-02197-D. The actions pending in state court are
captioned: DENNIS V. PRONET INC., ET AL., No. 96-06509; GREENFIELD V. PRONET
INC., ET AL., No. 96-06782-B; and DRUCKER V. PRONET INC., ET AL., No.
96-06786-L.
 
                                      F-84
<PAGE>   227
 
                          PRONET INC. AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE M -- LITIGATION -- (CONTINUED)
     Each of these cases purports to be a class action on behalf of a class of
purchasers of the Company's stock. The actions, taken as a group, allege that
the Company violated the Securities Act of 1933, the Securities Exchange Act of
1934 (and Rule 10b-5 thereunder), and certain state statutes and common law
doctrines. All of the actions were filed after the price of the Company's stock
decreased in June 1996. Certain of the actions pertain to an alleged class of
plaintiffs who purchased shares in the Company's $100 million public offering,
which closed on June 5, 1996. Other actions purport to include claims on behalf
of all purchasers of the Company's Common Stock during an alleged class period.
The state cases have been consolidated into a single action, which alleges
violation of the Securities Act of 1933 in connection with the Company's
Offering. The federal actions have been consolidated into two separate actions,
depending upon the nature of the claim raised. The court had previously
appointed a lead plaintiff in both actions, as that term is used in the Private
Securities Litigation Reform Act of 1995. That plaintiff has recently moved to
be relieved of that position, and the Company expects the court to appoint a new
lead plaintiff. In the meantime, the Company anticipates that its responsibility
to answer, plead or otherwise move against the pending federal complaints will
be deferred until a new lead plaintiff is appointed by the court.
 
     The Company will vigorously defend the actions. The Company anticipates
that the plaintiffs will claim substantial damages. Because these cases are in
the early stages of discovery, the Company cannot predict the amount of damages,
if any. The final outcome of the issues that are the subject of these actions
could have a material adverse effect on the Company's results of operations in
1997 and in the future.
 
NOTE N -- SUBSEQUENT EVENTS
 
     In January 1997, the Company paid $4.9 million in cash and issued 46,232
shares of its Common Stock in payment of $5.7 million of various deferred
payments.
 
     On March 4, 1997, the Company announced the completion of the acquisition
of Modern, which added more than 18,000 subscribers. The acquisition was
completed for approximately $9.2 million, comprised of approximately $8.9
million in cash and 50,000 shares of the Company's Common Stock paid at closing.
This acquisition was accounted for as a purchase, and the cash portion was
funded by borrowings under the Company's Credit Facilities.
 
                                      F-85
<PAGE>   228
 
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                           AND RESULTS OF OPERATIONS
 
OVERVIEW
 
     The Company provides wireless messaging services through its paging and
security systems operations. Until 1994, paging services were provided solely to
subscribers in the healthcare industry. Beginning in 1994, the Company broadened
its operating focus through the acquisition of paging businesses serving the
general commercial marketplace. As a result of 23 completed acquisitions, the
Company's results of operations for prior periods may not be indicative of
future performance. See "Business -- Strategy" and "-- Paging
Operations -- Acquisitions."
 
     The Company is a solutions-oriented organization dedicated to
individualized customer service focused on identifying market opportunities in
the wireless communications market where it can provide users with enhanced
wireless services. The Company focuses its activities in five regional
SuperCenters centered in major metropolitan markets and population corridors
which generally have the demographics, market size, travel patterns and types of
businesses that indicate significant potential demand for the Company's products
and services. The SuperCenters are located in New York, Chicago, Houston,
Charlotte and Stockton, California. At December 31, 1996, the Company had
1,270,954 pagers in service, which was the seventh largest domestic subscriber
base of all publicly traded paging companies in the United States.
 
     As one of its enhanced wireless communications services, through its
wholly-owned subsidiary, ETS, the Company markets radio-activated electronic
tracking security systems primarily to financial institutions throughout the
United States. The systems consist of TracPacs which are disguised in items of
value. When such an item is removed without authorization, the TracPac signals
the appropriate law enforcement authorities, who in turn follow the signal
generated by the TracPac to recover the item and apprehend the suspect.
 
     In both its paging and security systems operations, the Company builds and
operates communications systems and generates revenues from the sale and lease
of pagers, IPT systems and security devices and related access fees. The
Company's revenues are derived primarily from fixed monthly, quarterly, annual
and bi-annual fees charged to customers for paging and security tracking
services. While a subscriber remains in service, operating results benefit from
this recurring monthly revenue stream with minimal requirements for additional
selling expenses or other fixed costs. However, certain variable costs such as
telephone and equipment charges are directly related to the number of pagers in
service.
 
     Each month a percentage of the customer base disconnects service for a
variety of reasons. ProNet does, however, place an emphasis on customer care and
quality of service, and as a result its paging business currently has a "churn"
rate in line with the industry average of 3.1% (source: The State of the U.S.
Paging Industry: 1995, September 1995, Economic and Management Consultants
International, Inc.). Churn is the number of customers disconnecting service
each month as a percentage of the total subscriber base. Although the Company's
current disconnect rate is in line with the industry average, there can be no
assurance that the Company will not experience an increase in its churn rate,
which may adversely affect the Company's results of operations. The Company's
monthly churn rate in the security tracking business is lower than in its paging
business -- currently approximately 1%.
 
     Currently, service revenues consist of two components -- service fees and
unit leasing fees. As the Company pursues its strategy of expanding into new
markets, increasing its coverage within its existing service areas and
broadening its customer base and distribution channels, the percentage of
customers who own and maintain their paging equipment rather than leasing it
from the Company is likely to increase. This, together with competitive factors,
may result in declining service revenues per subscriber since these customers
will not pay a leasing fee as part of their monthly charge. However, the Company
will not incur the capital costs related to these COAM pagers. Additionally,
"ARPU" for pagers served through resellers is lower than for direct sales due to
the wholesale rates charged to this distribution channel. Such resellers do,
however, assume all selling, marketing, subscriber management and related costs
that would otherwise be incurred by the Company.
 
                                      F-86
<PAGE>   229
 
     Product sales and costs are also likely to increase as the business mix
shifts in favor of COAM units. The Company's objective is to break even on
product sales, but it may selectively offer discounts due to promotional offers
or competitive pressures.
 
     The Company currently enjoys low operating costs per unit due to the
efficiency of its operations. It expects that the continued development of its
business around its SuperCenters will result in economies of scale and
consolidation of operating and selling expenses that will help it retain this
competitive advantage.
 
     Earnings before other income (expense), income taxes, depreciation and
amortization and nonrecurring charges ("EBITDA") is a standard measure of
operating performance in the paging industry. The Company's EBITDA has grown at
a compound annual rate of approximately 43% over the past four years, while cash
flows from operating activities has decreased at a compound annual rate of 61%
for the same period. Cash flows from operating activities is derived from the
statement of cash flows and differs from EBITDA primarily due to interest
expense and changes in working capital. EBITDA growth is expected to continue
although near term EBITDA margins may be slightly impacted by legal costs,
start-up costs associated with certain SuperCenters and new enhanced products
and services, and the buildout of existing and acquired frequencies in the
Company's marketplaces. Cash flow from operating activities is expected to
fluctuate based upon the changes in working capital and fluctuations in interest
expense resulting from changes in the prevailing interest rates and the level of
borrowings on the Company's revolving line of credit. Non-cash and
financing-related charges for the Company's acquisition program have negatively
impacted earnings in 1995 and 1996 and have the potential to continue this trend
in the future.
 
     The following discussion and analysis of financial condition and results of
operations includes the historical results of operations of the Company and the
results of operations from the respective acquisition dates of all acquisitions
completed by the Company during 1994, 1995 and 1996. The results of operations
of Modern are not reflected in this discussion.
 
PAGING SYSTEMS' RESULTS OF OPERATIONS FOR THE
YEARS ENDED DECEMBER 31, 1996, 1995 AND 1994
 
<TABLE>
<CAPTION>
                                                                     YEARS ENDED DECEMBER 31,
                                                                  -------------------------------
                                                                    1996        1995       1994
                                                                  --------    --------    -------
                                                                          (IN THOUSANDS)
<S>                                                               <C>         <C>         <C>
Revenues
  Service revenues.............................................   $ 81,368    $ 50,805    $28,015
  Product sales................................................     15,776       9,899      6,506
                                                                  --------    --------    -------
          Total revenues.......................................     97,144      60,704     34,521
  Net book value of products sold..............................    (13,238)     (9,357)    (6,605)
          Net revenues(1)......................................     83,906      51,347     27,916
  Cost of services.............................................    (24,508)    (13,218)    (7,972)
  Gross margin.................................................     59,398      38,129     19,944
  Sales and marketing expenses.................................     15,469       7,937      6,530
  General and administrative expenses..........................     22,990      15,048      4,713
  Depreciation and amortization expenses.......................     39,043      17,122      7,017
  Nonrecurring charges.........................................      8,809          --         --
                                                                  --------    --------    -------
  Operating income (loss)......................................   $(26,913)   $ (1,978)   $ 1,684
                                                                  ========    ========    =======
EBITDA.........................................................   $ 20,939    $ 15,144    $ 8,701
                                                                  ========    ========    =======
</TABLE>
 
- ---------------
(1) Net revenues represent revenues from services, rent and maintenance plus
     product sales less net book value of products sold.
 
     Paging Systems' Net Revenues increased in each of the last three years
compared to prior years. These increases were attributable primarily to a
growing subscriber base achieved through greater market penetration in existing
markets and the Completed Acquisitions. Net revenues increased to $83.9 million
in 1996 from
 
                                      F-87
<PAGE>   230
 
$51.3 million in 1995 and from $27.9 million in 1994. This increase was
primarily due to a 48% increase in pagers to 1,270,954 at December 31, 1996,
from 856,302 at December 31, 1995, and a 142% increase at December 31, 1995,
from 353,830 at December 31, 1994. The increase in pagers in service was
primarily due to the Completed Acquisitions. In addition, internal growth
accounted for 218,152 and 128,772 units during 1996 and 1995, respectively,
which represents annualized internal growth rates of approximately 25% and 36%,
respectively.
 
     ARPU was $6.17, $6.57 and $8.51 for the quarters ended December 31, 1996,
1995, and 1994, respectively. This decrease was due to a further shift in the
Company's subscriber base from direct to indirect distribution channels which
generate lower revenues per subscriber. The Company's subscriber base was 76%
COAM at December 31, 1996 compared to 67% at December 31, 1995 and 53% at
December 31, 1994. The Company believes that ARPU will continue to decrease,
although at a slower rate, as the Company continues to expand its indirect
distribution channel.
 
     Product Sales Less Net Book Value of Products Sold was $2.5 million in
1996, $542,000 in 1995 and ($99,000) in 1994. The margin increased in 1996 and
1995 from the prior years primarily due to the increase in product sales.
Management anticipates that the Company's margins on pager sales may vary from
market to market due to competition and other factors.
 
     Reclassification of Costs.  During 1994, the Company restructured its
technical, sales and operational functions into its decentralized SuperCenter
strategy. To reflect this restructuring financially, certain costs that were
previously classified as cost of services and sales and marketing expenses in
1994 were classified as general and administrative expenses in 1995 and 1996.
Since the infrastructure of the Company changed in 1995, the nature of certain
expenses changed also. Accordingly, 1994 expenses were not reclassified. In the
aggregate, costs of services, sales and marketing expenses and general and
administrative expenses increased by 74% and 88% for the years ended December
31, 1996 and 1995, respectively, compared to the respective years ended December
31, 1995 and 1994 as a result of the Company's internal growth and acquisitions.
In total, these costs were $63.0 million (75% of paging systems' net revenues)
for the year ended December 31, 1996, compared to $36.2 million (71% of paging
systems' net revenues) and $19.2 million (69% of paging systems' net revenues)
for the years ended December 31, 1995 and 1994, respectively. The increase in
these costs as a percentage of net revenues for the years ended December 31,
1996 and 1995 from the comparable periods in 1995 and 1994, respectively, was
the result of increased expenses related to the buildout of the Company's
regional SuperCenters. These expenses as a percentage of net revenues should
decline in the future as redundant operations in acquired companies are
eliminated and as cost savings of recent acquisitions are integrated into the
existing SuperCenters.
 
     Paging Systems' Gross Margin (net revenues less cost of services) increased
to $59.4 million (71% of paging systems' net revenues) in 1996 from $38.1
million (74% of paging systems' net revenues) in 1995 and from $19.9 million
(71% of paging systems' net revenues) in 1994. The decrease in gross margin as a
percentage of paging systems' net revenues in 1996 was due to the increased
expenses related to recent acquisitions, start-up costs associated with certain
SuperCenters and the buildout of existing and acquired frequencies in its
marketplaces, primarily consisting of telephone, salaries, tower rent, pager
parts and third party access fees. The increase as a percentage of net revenues
in 1995 was primarily due to the reclassification of certain operating expenses
previously discussed. The Company currently anticipates that these margins will
decrease slightly in the short term, but will increase in the future as cost
efficiencies and integration savings are achieved and as revenues from new
systems increase to offset these costs. The cost of services increased to $24.5
million in 1996 from $13.2 million in 1995 as a result of the increased costs of
servicing a substantially larger subscriber base resulting from both internal
growth and acquisitions.
 
     Paging Systems' Sales and Marketing Expenses were $15.5 million (18% of
paging systems' net revenues) in 1996, $7.9 million (15% of paging systems' net
revenues) in 1995 and $6.5 million (23% of paging systems' net revenues) in
1994. The increase as a percentage of paging systems' net revenues in 1996 was
due to the increase in the number of retail stores (from 13 at December 31,
1995, to 45 at December 31, 1996), the majority of expenses of which are sales
and marketing, including increased advertising, salaries, commissions and travel
expenses. The decrease as a percentage of paging systems' net revenues in 1995
was
 
                                      F-88
<PAGE>   231
 
due to the reclassification of certain operating expenses described above. These
expenses, as a percentage of paging systems' net revenues, may increase slightly
in the future due to the Company's focus on expanding its direct distribution
channel.
 
     Paging Systems' General and Administrative Expenses were $23.0 million (27%
of paging systems' net revenues) in 1996, $15.0 million (29% of paging systems'
net revenues) in 1995 and $4.7 million (17% of paging systems' net revenues) in
1994. The decrease as a percentage of paging systems' net revenues in 1996 was
due to savings resulting from the integration of certain acquisitions completed
in 1996 into the SuperCenter structure, as well as the increase in the number of
retail store locations referred to above. While retail stores operate with
higher sales and marketing expenses than other methods of distribution, these
expenses are at least partially offset by lower general and administrative
expenses. The increase as a percentage of net revenues in 1995 was due to the
reclassification of certain operating expenses as previously discussed.
Management anticipates that paging systems' general and administrative expenses
as a percentage of net revenues will decrease slightly over time as a result of
general and administrative expenses being spread across a larger subscriber base
as well as savings resulting from the continuing integration of recent
acquisitions. Management also anticipates that legal costs could increase in the
near future as the Company defends itself against certain lawsuits described in
"Item 3. Legal Proceedings." Because these cases are in the early stages of
discovery, the Company cannot predict the amount of costs, if any.
 
     Paging Systems' Depreciation and Amortization Expenses were $39.0 million,
$17.1 million and $7.0 million in 1996, 1995 and 1994, respectively. The
increase was primarily due to the amortization of intangibles arising from the
Completed Acquisitions. The Company expects this trend in depreciation and
amortization expenses to continue in the near term as a result of acquisitions
and continued capital investment in paging equipment to support the Company's
growth.
 
     Paging Systems' Nonrecurring Charges were $8.8 million in 1996. These costs
represent nonrecurring costs related to the terminated merger with Teletouch
Communications, Inc. ("Teletouch") and related financing, consisting primarily
of underwriting, advisory, legal and accounting fees and merger financing costs.
See "Financial Statements and Supplementary Data -- Note L -- Acquisitions" for
further discussion.
 
     EBITDA for the paging systems' operations was $20.9 million (25% of paging
systems' net revenues), $15.1 million (29% of paging systems' net revenues) and
$8.7 million (31% of paging systems' net revenues) for 1996, 1995 and 1994,
respectively. The decrease in EBITDA as a percentage of net revenues in 1996 and
1995 from the prior years was the result of increased expenses related to the
increased level of acquisition activity during those years from the prior year
as well as the buildout of the Company's SuperCenters, consisting primarily of
salary, telephone, pager parts, third party access fees and tower rent expenses.
The Company believes EBITDA will increase over time as the Company continues to
integrate the Completed Acquisitions, spreads its costs over a larger subscriber
base and achieves resulting economies of scale and operating efficiencies.
 
                                      F-89
<PAGE>   232
 
SECURITY SYSTEMS' RESULTS OF OPERATIONS FOR THE
YEARS ENDED DECEMBER 31, 1996, 1995 AND 1994
 
<TABLE>
<CAPTION>
                                                                      YEARS ENDED DECEMBER 31,
                                                                    -----------------------------
                                                                     1996       1995       1994
                                                                    -------    -------    -------
                                                                           (IN THOUSANDS)
<S>                                                                 <C>        <C>        <C>
Revenues
  Service revenues...............................................   $ 5,871    $ 5,303    $ 5,064
  Product sales..................................................        41        137        133
                                                                    -------    -------    -------
          Total revenues.........................................     5,912      5,440      5,197
  Cost of products sold..........................................        (6)       (64)       (39)
                                                                    -------    -------    -------
  Net revenues (1)...............................................     5,906      5,376      5,158
  Cost of services...............................................    (1,416)    (1,178)    (1,213)
                                                                    -------    -------    -------
  Gross margin...................................................     4,490      4,198      3,945
  Sales and marketing expenses...................................       211        319        207
  General and administrative expenses............................       420        631        676
  Depreciation and amortization expenses.........................     1,581      1,540      1,557
                                                                    -------    -------    -------
Operating income.................................................   $ 2,278    $ 1,708    $ 1,505
                                                                    =======    =======    =======
EBITDA...........................................................   $ 3,859    $ 3,248    $ 3,062
                                                                    =======    =======    =======
</TABLE>
 
- ---------------
(1) Net revenues represent revenues from services, rent and maintenance plus
     product sales less cost of products sold.
 
     Security Systems' Total Revenues increased in each of the last three years.
These increases were attributable primarily to the installation of new systems
in each year, as well as further market penetration in existing markets. The
Company installed six systems in 1996, three systems in 1995 and two systems in
1994. The number of TracPacs in service at the end of 1996 was 29,501, a 7%
increase compared to the end of 1995. The number of TracPacs in service at the
end of 1995 was 27,548, a minimal decrease compared to 27,595 at the end of
1994.
 
     Security Systems' Operating Income was $2.3 million, $1.7 million and $1.5
million for 1996, 1995, and 1994, respectively. The increase in operating income
resulted primarily from increased revenues and decreased general and
administrative expenses.
 
     EBITDA for security systems' operations was $3.9 million (65% of security
systems' net revenues) in 1996, $3.2 million (60% of security systems' net
revenues) in 1995 and $3.1 million (59% of security systems' net revenues) in
1994. This increase was primarily due to increases in net revenues and decreases
in general and administrative expenses.
 
OTHER INCOME (EXPENSE)
 
     Other income (expense) includes interest income generated from short-term
investments and interest expense incurred. Interest expense increased in 1996
and 1995 from the prior years primarily as a result of interest due on the
senior subordinated notes which were issued in June 1995 and increases in the
outstanding amounts under the Company's revolving line of credit. Interest
expense is expected to continue to fluctuate based on changes in the outstanding
amounts under the revolving line of credit.
 
FEDERAL INCOME TAXES
 
     At December 31, 1996, the Company had net operating loss carryforwards of
$45.7 million for income tax purposes that expire in years 2005 through 2011.
For the year ended December 31, 1996, the primary differences between the U.S.
Federal statutory tax rate and the effective rate in the Company's historical
financial statements are state income taxes, net operating losses with no
benefit and the amortization of goodwill related to stock acquisitions, which is
not deductible for tax purposes.
 
                                      F-90
<PAGE>   233
 
LIQUIDITY AND CAPITAL RESOURCES
 
     During 1996, 1995 and 1994, the Company financed the majority of its
growth, other than acquisitions, through internally generated funds. Net cash
provided by operating activities was $160,000 in 1996, $12.5 million in 1995 and
$12.0 million in 1994. The net decrease in cash provided by operating activities
in 1996 from 1995 was primarily due to increases in the net loss, accounts
receivable, inventory and other current assets, offset by increases in
depreciation and amortization, the provision for losses on accounts receivable,
and trade payables and other accrued expenses and liabilities and a decrease in
other assets. The net increase in cash provided by operating activities in 1995
from 1994 was primarily due to increases in depreciation and amortization and
the provision for losses on accounts receivable, offset by an increase in
accounts receivable and a decrease in net income. Acquisitions prior to
September 1995 were financed with borrowings under the Company's revolving line
of credit. Proceeds from the sale of the senior subordinated notes issued in
1995 were used to repay all indebtedness outstanding under the Company's
revolving line of credit and to fund the remaining acquisitions in 1995. The
Company funded $7.3 million of the cash for acquisitions in the first quarter of
1996 with proceeds from the sale of the senior subordinated notes issued in
1995, with the remaining amounts financed with borrowings under the Company's
revolving line of credit. The purchase of the Nationwide License in July 1996
was funded with $28 million in proceeds from the Company's equity offering in
June 1996 and $15 million with borrowings under its revolving line of credit.
The Company funded the $21.7 million cash portion of acquisitions in the fourth
quarter of 1996 with borrowings under its revolving line of credit. The $8.9
million cash portion of the acquisition of Modern in 1997 was also funded with
borrowings under its revolving line of credit. The Company anticipates that its
ongoing capital needs will be funded with additional borrowings and net cash
generated by operations.
 
CAPITAL EXPENDITURES
 
     At December 31, 1996, the Company had invested $108.1 million in system
equipment and pagers for its major metropolitan markets and $12.9 million in
system equipment and TracPacs for its 35 security systems.
 
     Capital expenditures for paging systems' equipment were $13.6 million in
1996, $8.4 million in 1995 and $2.1 million in 1994 (excluding assets acquired
pursuant to the Completed Acquisitions), and $931,700 for security systems'
equipment and TracPacs in 1996, $1.4 million in 1995 and $728,500 in 1994.
 
     Except for those assets acquired through acquisitions and any capital costs
associated with new enhanced products and services, the Company expects to meet
its capital requirements in 1997 with cash generated from operations. Although
the Company had no material binding commitments to acquire capital equipment at
December 31, 1996, the Company anticipates capital expenditures for 1997 to be
approximately $24.0 million for the purchase of pagers and system equipment for
its current paging systems' operations and approximately $660,000 for the
manufacture of TracPacs and the purchase of system equipment for its security
systems' operations.
 
CREDIT FACILITIES
 
     In June 1995, the Company entered into an agreement with The First National
Bank of Chicago, as Agent (the "Lender"), making available a $125 million
revolving line of credit (the "1995 Credit Facility") for working capital
purposes and for acquisitions approved by the Lender. Under the terms of the
1995 Credit Facility, the revolving line of credit would have converted in
February 1997 to a five and one-half year term loan maturing in July 2002.
Borrowings were secured by all assets of the Company and its subsidiaries. The
1995 Credit Facility required maintenance of certain specified financial and
operating covenants and prohibited the payment of dividends or other
distributions on the Company's Common Stock. The 1995 Credit Facility also
permitted the issuance of senior subordinated notes and stated that in the event
of an issuance of subordinated indebtedness of the Company or an equity issuance
(other than the Common Stock offering which occurred in 1994), the Lender could
request that some portion of the proceeds be used to pay down outstanding
borrowings under the 1995 Credit Facility.
 
     In June 1996, the Company repaid the $48 million outstanding under the 1995
Credit Facility with proceeds from the Offering in June 1996.
 
                                      F-91
<PAGE>   234
 
     Also in June 1996, the Company entered into a new agreement with the Lender
for $300 million of senior secured credit facilities ("Former Credit
Facilities"), to be used to finance non-hostile acquisitions of paging
businesses, capital expenditures and general corporate purposes. The Former
Credit Facilities were amended in September 1996 ("Credit Facilities") reducing
the amount of credit available from $300 million under the Former Credit
Facilities to $150 million under the Credit Facilities. The $150 million under
the Credit Facilities consist of a $25 million revolving line of credit maturing
December 31, 2003, and a $125 million two year revolving line of credit which
converts July 1, 1998 to a term loan maturing December 31, 2003. The borrowings
bear interest, at the Company's designation, at either (i) the Alternate Base
Rate ("ABR") plus a margin of up to 1.5% or (ii) the Eurodollar Base Rate plus a
margin of up to 2.75%. The term loan will be payable in quarterly installments,
based on the principal amount outstanding on the conversion date, in amounts
ranging from 7% initially to 20%. Loans bearing interest based on ABR may be
prepaid at any time, and loans bearing interest based on the Eurodollar Rate may
not be paid prior to the last day of the applicable interest period. A
commitment fee of either .375% or .5% on the average daily unused portion of the
Credit Facilities is required to be paid quarterly. At December 31, 1996, the
Company had approximately $9.9 million of available funds under the Credit
Facilities.
 
  Senior Subordinated Notes
 
     In June 1995 the Company completed a Rule 144A Offering of $100 million
principal amount of its 11 7/8% senior subordinated notes (the "1995 Notes") due
2005. Proceeds to the Company from the sale of the 1995 Notes, after deducting
discounts, commissions and offering expenses, were approximately $95.6 million.
The Company used approximately $49.4 million of the net proceeds to repay all
indebtedness outstanding under the 1995 Credit Facility. The Company used the
remaining proceeds to pursue the Company's acquisition strategy, to purchase
frequency rights, to make capital expenditures for buildout of the Company's
regional paging systems and for enhanced services, and for working capital and
general corporate purposes.
 
     The 1995 Notes are general unsecured obligations of the Company and are
subordinated to all existing and future senior debt of the Company. The
Indenture provides that the Company may not incur any debt that is subordinate
in right of payment to the senior debt and senior in right of payment to the
1995 Notes. The Indenture also contains certain covenants that, among other
things, limit the ability of the Company and its subsidiaries to incur
indebtedness, pay dividends, engage in transactions with affiliates, sell assets
and engage in certain other transactions. Interest on the 1995 Notes is payable
in cash semi-annually on each June 15 and December 15, commencing December 15,
1995. The 1995 Notes will not be redeemable at the Company's option prior to
June 15, 2000.
 
     The Company filed a Form S-4 Registration Statement (the "1995 S-4") on
July 7, 1995 to register the 1995 Notes with the Securities and Exchange
Commission (the "SEC") under the Securities Act of 1933, as amended (the
"Securities Act"). On October 6, 1995, the SEC declared the 1995 S-4 effective.
 
  Common Stock Offering
 
     In June 1996, the Company issued four million shares of its Common Stock at
a price of $25 per share. The net proceeds to the Company from the Offering,
after deducting commissions and offering expenses were approximately $94.8
million. Also in June 1996, the Company used approximately $48 million of the
net proceeds of the Offering to repay all outstanding indebtedness under the
1995 Credit Facility, $3 million to pay bank fees for the Credit Facilities, $6
million to pay interest due on the 1995 Notes, and $8 million to fund interest,
penalty and underwriters fees for the senior subordinated notes related to the
Teletouch merger. In July 1996, the Company used approximately $28 million of
the Offering proceeds to purchase the Nationwide License. The remaining proceeds
were used to fund capital expenditures and for working capital and general
operating needs. If the Offering had occurred as of the beginning of 1996, net
loss per share would have been $3.48 for the year ended December 31, 1996.
 
                                      F-92
<PAGE>   235
 
  Acquisitions
 
     In 1993, the Company announced its plans to commence a program of acquiring
businesses that serve the commercial paging market and offer operational
synergies when integrated within the Company's SuperCenters. During 1994, 1995
and 1996, the Company completed 21 acquisitions at a total cost of $198.9
million. The 21 Completed Acquisitions were accounted for as purchases and
funded by borrowings under the Company's revolving line of credit, proceeds from
the sale of the 1995 Notes and issuances of shares of the Common Stock. On March
1, 1997, the Company acquired substantially all of the outstanding capital stock
of Modern for a purchase price of $9.2 million. This acquisition was accounted
for as a purchase and was funded by borrowings under the Credit Facilities.
 
     At December 31, 1996, the Company had deferred payments of $5.7 million
outstanding related to various acquisitions which are due and payable one year
from the closing of the respective transactions. The balances are payable, at
the Company's discretion, either in cash or shares of the Company's Common Stock
based on current market value at the date of payment. In January of 1997, the
Company paid $4.9 million in cash and issued 46,232 shares of its Common Stock
in payment of $5.7 million of deferred payments related to various acquisitions.
 
  Litigation
 
     The final outcome of the issues subject to litigation as described in "Item
3 -- Litigation" and "Note M -- Litigation" to the Consolidated Financial
Statements could have a material adverse effect on the Company's results of
operations during fiscal year 1997 or subsequent periods. Because the cases are
in the early stages of discovery, the Company cannot predict the amount of
damages, if any.
 
  Forward-Looking Statements
 
     Certain statements contained herein are not based on historical facts, but
are forward-looking statements that are based upon numerous assumptions as of
the date of this release that could prove not to be accurate. These statements
appear in a number of places in this report and include statements regarding the
intent, belief or current expectations of the Company, its officers or its
directors with respect to, among other things: (i) acquisitions and product
development; (ii) the Company's financing plans; (iii) trends affecting the
Company's financial condition or results of operations; and (iv) regulatory
matters affecting the Company. Actual events, transactions and results may
materially differ from the anticipated events, transactions or results described
in such statements. The Company's ability to achieve such transactions and
achieve such events or results is subject to certain risks and uncertainties.
Such risks and uncertainties include, but are not limited to, the existence of,
demand for and acceptance of the Company's products and services, the
availability of appropriate candidates for acquisition by the Company,
regulatory approvals, economic conditions, the impact of competition and
pricing, results of financing efforts and other factors affecting the Company's
business that are beyond the Company's control, including but not limited to the
matters described in "Risk Factors". The Company disclaims any obligations to
update the forward-looking statements contained herein.
 
                                      F-93
<PAGE>   236
 
                          PRONET INC. AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
                                 (IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                         JUNE 30,      DECEMBER 31,
                                                                           1997            1996
                                                                        -----------    ------------
                                                                        (UNAUDITED)
<CAPTION>
<S>                                                                     <C>            <C>
                                              ASSETS
CURRENT ASSETS
  Cash and cash equivalents..........................................    $   3,817       $  2,286
  Trade accounts receivable, net of allowance for doubtful
     accounts........................................................       11,189         13,747
  Federal income tax receivable......................................          469            497
  Inventories........................................................        2,505          2,760
  Other current assets...............................................        2,326          2,499
                                                                          --------       --------
                                                                            20,306         21,789
                                                                          --------       --------
EQUIPMENT
  Pagers.............................................................       57,973         59,003
  Communications equipment...........................................       56,418         49,134
  Security systems' equipment........................................       13,918         12,897
  Office and other equipment.........................................       13,041         11,454
                                                                          --------       --------
                                                                           141,350        132,488
  Less allowance for depreciation....................................      (65,845)       (50,718)
                                                                          --------       --------
                                                                            75,505         81,770
                                                                          --------       --------
GOODWILL AND OTHER ASSETS, net of amortization.......................      211,380        208,157
                                                                          --------       --------
                                                                         $ 307,191       $311,716
                                                                          ========       ========
 
                               LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES
  Trade payables.....................................................    $  19,410       $ 10,452
  Other accrued expenses and liabilities.............................       12,288         13,264
                                                                          --------       --------
                                                                            31,698         23,716
                                                                          --------       --------
LONG-TERM DEBT.......................................................      170,226        148,691
DEFERRED CREDITS.....................................................        4,000          5,660
STOCKHOLDERS' EQUITY
  Common stock.......................................................          130            129
  Additional capital.................................................      181,991        180,694
  Retained deficit...................................................      (79,279)       (45,714)
  Less treasury stock at cost........................................       (1,575)        (1,460)
                                                                          --------       --------
                                                                           101,267        133,649
                                                                          --------       --------
                                                                         $ 307,191       $311,716
                                                                          ========       ========
</TABLE>
 
                See notes to consolidated financial statements.
 
                                      F-94
<PAGE>   237
 
                          PRONET INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                        THREE MONTHS ENDED       SIX MONTHS ENDED
                                                             JUNE 30,                JUNE 30,
                                                       --------------------    --------------------
                                                         1997        1996        1997        1996
                                                       --------    --------    --------    --------
                                                                        (UNAUDITED)
<S>                                                    <C>         <C>         <C>         <C>
REVENUES
  Service revenues..................................   $ 24,505    $ 20,926    $ 48,562    $ 41,942
  Product sales.....................................      5,554       3,889      10,430       7,035
                                                       --------    --------    --------    --------
          Total revenues............................     30,059      24,815      58,992      48,977
  Net book value of products sold...................     (3,644)     (3,355)     (7,183)     (6,136)
                                                       --------    --------    --------    --------
                                                         26,415      21,460      51,809      42,841
                                                       --------    --------    --------    --------
COST OF SERVICES
  Pager lease and access services...................      7,264       5,712      14,450      11,224
  Security systems' equipment services..............        470         315         901         590
                                                       --------    --------    --------    --------
                                                          7,734       6,027      15,351      11,814
                                                       --------    --------    --------    --------
          Gross margin..............................     18,681      15,433      36,458      31,027
                                                       --------    --------    --------    --------
EXPENSES
  Sales and marketing...............................      4,258       3,876       8,482       7,915
  General and administrative........................      6,728       6,004      13,089      11,344
  Depreciation and amortization.....................     17,107       8,425      33,117      17,132
  Nonrecurring charges..............................      6,550       7,374       6,550       7,374
                                                       --------    --------    --------    --------
                                                         34,643      25,679      61,238      43,765
                                                       --------    --------    --------    --------
          Operating loss............................    (15,962)    (10,246)    (24,780)    (12,738)
OTHER INCOME (EXPENSE)
  Interest and other income.........................         54         187         137         214
  Interest expense..................................     (4,329)     (3,988)     (8,756)     (7,646)
                                                       --------    --------    --------    --------
                                                         (4,275)     (3,801)     (8,619)     (7,432)
                                                       --------    --------    --------    --------
LOSS BEFORE INCOME TAXES............................    (20,237)    (14,047)    (33,399)    (20,170)
INCOME TAX EXPENSE..................................         67         100         167         100
                                                       --------    --------    --------    --------
          Net loss..................................   $(20,304)   $(14,147)   $(33,566)   $(20,270)
                                                       ========    ========    ========    ========
Net loss per share..................................   $  (1.61)   $  (1.76)   $  (2.66)   $  (2.65)
                                                       ========    ========    ========    ========
Weighted average shares.............................     12,618       8,404      12,601       7,657
                                                       ========    ========    ========    ========
</TABLE>
 
                See notes to consolidated financial statements.
 
                                      F-95
<PAGE>   238
 
                          PRONET INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                              SIX MONTHS ENDED
                                                                                  JUNE 30,
                                                                         --------------------------
                                                                            1997           1996
                                                                         -----------    -----------
                                                                         (UNAUDITED)    (UNAUDITED)
<S>                                                                      <C>            <C>
OPERATING ACTIVITIES:
  Net loss............................................................    $ (33,566)     $ (20,270)
  Adjustments to reconcile net loss to net cash provided by operating
     activities:
     Depreciation.....................................................       25,183         10,589
     Amortization.....................................................        7,934          6,543
     Amortization of discount.........................................           36             36
     Provision for losses on accounts receivable......................          961            696
     Provision for settlement costs...................................        4,000             --
  Changes in operating assets and liabilities:
     (Increase) decrease in trade accounts receivable.................        1,513         (2,629)
     Decrease in inventories..........................................          261            401
     (Increase) decrease in other current assets......................          201         (3,915)
     (Increase) decrease in other assets..............................         (758)         7,374
     Increase (decrease) in trade payables and other accrued expenses
      and liabilities.................................................        7,737         (3,141)
                                                                         -----------    -----------
          Net cash provided by (used in) operating activities.........       13,502         (4,316)
                                                                         -----------    -----------
INVESTING ACTIVITIES:
  Purchase of equipment, net..........................................       (6,745)       (10,519)
  Purchase of pagers, net of disposals................................       (9,254)       (18,221)
  Acquisitions, net of cash acquired..................................      (14,114)       (32,503)
  Computer system software, product enhancements and other intangible
     assets...........................................................       (3,790)          (668)
  Other...............................................................          380           (121)
                                                                         -----------    -----------
          Net cash used in investing activities.......................      (33,523)       (62,032)
                                                                         -----------    -----------
FINANCING ACTIVITIES:
  Bank debt...........................................................       21,500         48,000
  Sale of common stock--net...........................................           --         94,800
  Payment on bank debt................................................           --        (48,000)
  Exercise of incentive stock options for common stock................           --             66
  Debt financing costs................................................           --         (8,768)
  Other...............................................................           52           (348)
                                                                         -----------    -----------
          Net cash provided by financing activities...................       21,552         85,750
                                                                         -----------    -----------
INCREASE IN CASH AND CASH EQUIVALENTS.................................        1,531         19,402
CASH AND CASH EQUIVALENTS:
  Beginning of period.................................................        2,286         10,154
                                                                         -----------    -----------
  End of period.......................................................    $   3,817      $  29,556
                                                                          =========      =========
</TABLE>
 
                See Notes to Consolidated Financial Statements.
 
                                      F-96
<PAGE>   239
 
                          PRONET INC. AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                         SIX MONTHS ENDED JUNE 30, 1997
 
NOTE A -- ACCOUNTING POLICIES
 
     Basis of Presentation:  The accompanying unaudited consolidated financial
statements have been prepared in accordance with generally accepted accounting
principles for interim financial information and with the instructions to Form
10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of
the information and footnotes required by generally accepted accounting
principles for complete financial statements. In the opinion of management, all
adjustments (consisting of normal recurring accruals) considered necessary for a
fair presentation have been included. Operating results for the six month period
ended June 30, 1997 are not necessarily indicative of the results that may be
expected for the year ended December 31, 1997. For further information, refer to
the consolidated financial statements and footnotes thereto included in the Form
10-K and Form 10-K A for ProNet Inc. (the "Company") filed with the Securities
and Exchange Commission on March 28, 1997 and May 1, 1997, respectively.
 
     Goodwill and Other Assets:  Goodwill and other assets consist of the
following (in thousands):
 
<TABLE>
<CAPTION>
                                                                              DECEMBER
                                                                 JUNE 30,        31,
                                                                   1997         1996
                                                                 --------    -----------
        <S>                                                      <C>         <C>
        Goodwill..............................................   $171,927     $ 164,786
        FCC licenses..........................................     34,674        34,665
        Other.................................................     35,383        31,003
                                                                 --------      --------
                                                                  241,984       230,454
        Less accumulated amortization.........................    (30,604)      (22,297)
                                                                 --------      --------
                                                                 $211,380     $ 208,157
                                                                 ========      ========
</TABLE>
 
     Goodwill is amortized using the straight-line method over a fifteen year
term. Amortization of the FCC licenses is deferred while the related system is
not operational.
 
     Net Loss Per Share:  Net loss per share is based on the weighted average
number of common shares and common equivalent shares outstanding during each
period. Stock options are considered common stock equivalents, if dilutive, for
purposes of computing weighted average shares outstanding.
 
     Reclassification of Financial Statements:  The 1996 financial statements
have been reclassified to conform to the 1997 financial statement presentation.
 
     New Accounting Pronouncements:  In February 1997, the Financial Accounting
Standards Board issued Statement No. 128, Earnings per Share, which is required
to be adopted on December 31, 1997. At that time, the Company will be required
to change the method currently used to compute earnings per share and to restate
all prior periods. Under the new requirements for calculating primary earnings
per share, the dilutive effect of stock options will be excluded. The impact of
Statement No. 128 on the calculation of primary and fully diluted earnings per
share is not expected to be material.
 
                                      F-97
<PAGE>   240
 
                          PRONET INC. AND SUBSIDIARIES
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE B -- LONG-TERM DEBT
 
     Long-term debt consists of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                 JUNE 30,    DECEMBER 31,
                                                                   1997          1996
                                                                 --------    ------------
        <S>                                                      <C>         <C>
        Senior subordinated notes.............................   $ 99,426      $ 99,391
        Revolving line of credit..............................     70,800        49,300
                                                                 --------    ------------
                                                                  170,226       148,691
        Less current maturities...............................         --            --
                                                                 --------    ------------
                                                                 $170,226      $148,691
                                                                 ========    ==========
</TABLE>
 
NOTE C -- DEFERRED CREDITS
 
     Deferred credits consist of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                                   JUNE 30,    DECEMBER 31,
                                                                     1997          1996
                                                                   --------    ------------
        <S>                                                        <C>         <C>
        Deferred payments.......................................    $   --        $5,660
        Settlement costs........................................     4,000            --
                                                                   --------    ------------
                                                                    $4,000        $5,660
                                                                    ======     ==========
</TABLE>
 
     At December 31, 1996, the Company had deferred payments outstanding related
to the Cobbwells, Inc. dba Page One ("Page One") and SigNet Paging of Raleigh,
Inc. ("SigNet Raleigh") acquisitions of $4.9 million and $800,000, respectively,
which were due and payable one year from the closing of the respective
transactions. The balances were payable, at the Company's discretion, either in
cash or shares of the Company's Common Stock based on current market value at
the date of payment. In January 1997, the Company paid $4.9 million in cash and
issued 46,232 shares of its Common Stock in payment of $5.7 million of the Page
One and SigNet Raleigh deferred payments, respectively. On May 15, 1997, the
Company announced that it had entered into an agreement in principle to settle
the securities class actions pending against the Company in state and Federal
courts. As part of the settlement, the Company agreed to issue one million
shares of the Company's Common Stock to the plaintiff. See "Note
F -- Litigation."
 
NOTE D -- ACQUISITIONS
 
     In early 1993, the Company announced its plans to commence a program of
acquiring businesses that serve the commercial paging market and offer
operational synergies when integrated within the Company's SuperCenters. During
1994, 1995 and 1996, the Company completed 21 acquisitions at a total cost of
$198.9 million and the purchase of a nationwide license (931.9125 MHz Radio
Common Carrier frequency) and associated system equipment (the "Nationwide
License") for $43 million. Effective March 1, 1997, the Company acquired all of
the outstanding capital stock of Modern Communication Corp. and Personal
Communications, Inc. ("Modern") for $9.2 million. The completed acquisitions
were accounted for as purchases and funded by borrowings under the Company's
revolving line of credit, proceeds from the sale of the senior subordinated
notes and issuances of shares of the Common Stock.
 
     The pro forma unaudited results of operations for the six months ended June
30, 1997 are not materially different from the historical results and therefore
are not presented. The pro forma unaudited results of operations for the six
months ended June 30, 1996, (which include acquisitions closed as of June 30,
1997),
 
                                      F-98
<PAGE>   241
 
                          PRONET INC. AND SUBSIDIARIES
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE D -- ACQUISITIONS -- (CONTINUED)
assuming consummation of the purchases at the beginning of the periods
indicated, are as follows (in thousands, except per share data):
 
<TABLE>
<CAPTION>
                                                                       SIX MONTHS ENDED
                                                                        JUNE 30, 1996
                                                                       ----------------
        <S>                                                            <C>
        Total revenues..............................................       $ 57,779
        Net loss....................................................        (21,594)
        Net loss per common share...................................          (2.80)
</TABLE>
 
     These pro forma results have been prepared for comparative purposes only
and do not purport to be indicative of the results of operations which actually
would have resulted had the acquisitions been made as of those dates or of
results which may occur in the future. In the second quarter of 1996, the
Company signed a definitive agreement to merge with Teletouch Communications,
Inc. ("Teletouch"). In the third quarter of 1996, the Company announced the
termination of the pending Teletouch merger. Nonrecurring charges of
approximately $7.4 million were recorded in the second quarter of 1996 as a
result of the Teletouch merger termination. These charges consist primarily of
underwriting, advisory, legal and accounting costs and merger financing costs.
 
NOTE E -- INCOME TAXES
 
     For the three and six months ended June 30, 1997, the primary differences
between the U.S. Federal statutory tax rate and the effective tax rate in the
Company's historical financial statements are state income taxes, net operating
losses with no benefit and the amortization of goodwill related to stock
acquisitions, which is not deductible for tax purposes.
 
NOTE F -- LITIGATION
 
     The Company, its directors, and certain of its officers have been sued in
eight separate actions brought in the United States District Court for the
Northern District of Texas and the District Courts of Dallas County, Texas. The
actions pending in federal court are captioned: Werner v. ProNet Inc., et al.,
No. 3-96CV1795-P; Molina v. ProNet Inc., et al., No. 3-96CV1972-R; Smith, et al.
v. Lehman Brothers, et al., No. 3-96CV2116-H; L.L. Capital Partners L.P. v.
ProNet Inc., et al., No. 3-96-CV-02197-D. The actions pending in state court are
captioned: Dennis v. ProNet Inc., et al., No. 96-06509; Greenfield v. ProNet
Inc., et al., No. 96-06782-B; and Drucker v. ProNet Inc., et al., No.
96-06786-L.
 
     Each of these cases purports to be a class action on behalf of a class of
purchasers of the Company's stock. The actions, taken as a group, allege that
the Company violated the Securities Act of 1933, the Securities Exchange Act of
1934 (and Rule 10b-5 thereunder), and certain state statutes and common law
doctrines. All of the actions were filed after the price of the Company's stock
decreased in June 1996. Certain of the actions pertain to an alleged class of
plaintiffs who purchased shares in the Company's $100 million public offering,
which closed on June 5, 1996. Other actions purport to include claims on behalf
of all purchasers of the Company's Common Stock during an alleged class period.
The state cases have been consolidated into a single action, which alleges
violation of the Securities Act of 1933 in connection with the Company's
Offering. The federal actions have been consolidated into two separate actions,
depending upon the nature of the claim raised. The Company has been served in
each action. The Company has also accepted service on behalf of the individuals
named in the relevant actions. The Company and the individual defendants have
filed answers in each of the state cases. Two orders have been entered
appointing lead plaintiffs in the federal cases as provided for in the Private
Securities Litigation Reform Act of 1995 (the "Reform Act"). The plaintiffs have
filed consolidated complaints. The Company recently filed motions to dismiss the
complaints in
 
                                      F-99
<PAGE>   242
 
                          PRONET INC. AND SUBSIDIARIES
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
NOTE F -- LITIGATION -- (CONTINUED)
the federal cases. Under the provisions of the Reform Act, the federal cases are
stayed until the motions to dismiss are resolved.
 
     The Company has entered into an agreement in principle to settle the
securities class actions pending against the Company and its officers and
directors in state and federal courts in Dallas. The Company has also entered
into an agreement with its former underwriters that terminates the Company's
potential liability to its former underwriters.
 
     The Company and its insurance carriers will pay $5 million to settle all
claims against the Company and its officers and directors. The Company will also
pay an additional $400,000 to the plaintiffs, as part of its agreement with its
former underwriters. The Company will assign to the plaintiffs certain rights
against one of its insurers and will issue one million shares of ProNet stock to
the class upon final court approval of the settlement. The Company will also pay
$2 million to the class if, within two years from final approval of the
settlement, the Company engages in a merger or similar transaction in which
control of the Company changes. The proposed settlement is subject to execution
of a definitive settlement agreement and court approval.
 
     The proposed settlements will resolve all disputes among the parties to the
litigation.
 
NOTE G -- SUBSEQUENT EVENT
 
     On August 8, 1997, the Company signed a definitive agreement ("the Merger
Agreement") to merge into Metrocall, Inc. ("Metrocall"). Metrocall will issue
approximately 12.3 million shares of Metrocall common stock, which will be
converted at a ratio of 0.9 Metrocall shares per ProNet share, as adjusted.
Total value of the merger is approximately $73.8 million. Metrocall will also
assume approximately $170.2 million in the Company's debt.
 
     This transaction is subject to the approval of the Company's and
Metrocall's stockholders, and approval of Metrocall's stockholders of an
increase in Metrocall's authorized common shares to 80 million. The Merger
Agreement is also subject to other terms and conditions, including regulatory
approvals, consents by Metrocall's banks and approval of certain pending
securities litigation settlements involving the Company in accordance with
previously announced settlements.
 
     For additional information regarding the transactions contemplated in the
Merger Agreement, reference is made to the Agreement and Plan of Merger and
certain other documents entered into in connection with the Merger Agreement,
copies of which are incorporated herein by reference through Metrocall's Form
8-K dated August 11, 1997.
 
                                      F-100
<PAGE>   243
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
OVERVIEW
 
     The Company provides wireless messaging services through its paging and
security systems operations. Until 1994, paging services were provided solely to
subscribers in the healthcare industry. Beginning in 1994, the Company broadened
its operating focus through the acquisition of paging businesses serving the
general commercial marketplace. As a result of 23 completed acquisitions, the
Company's results of operations for prior periods may not be indicative of
future performance.
 
     The Company is a solutions-oriented organization dedicated to
individualized customer service which has concentrated on identifying market
opportunities in the wireless communications market where it can provide users
with enhanced wireless services. The Company focuses its activities in five
geographic regions or communication "SuperCenters" centered in major
metropolitan markets and population corridors, which generally have the
demographics, market size, travel patterns and types of businesses that indicate
significant potential demand for the Company's products and services. The
SuperCenters are located in New York, Chicago, Houston, Charlotte and Stockton,
California. At June 30, 1997, the Company had 1,385,354 pagers in service, which
was the seventh largest domestic subscriber base of all publicly traded paging
companies in the United States.
 
     As one of its enhanced wireless communications services, through its
wholly-owned subsidiary, Electronic Tracking Systems Inc. ("ETS"), which
operates under the name of ProNet Tracking Systems ("PTS"), the Company markets
radio-activated electronic tracking security systems primarily to financial
institutions throughout the United States. The systems consist of radio
transmitters, or "TracPacs," which are disguised in items of value. When such an
item is removed from a financial institution without authorization, the TracPac
signals the appropriate law enforcement authorities, who in turn follow the
signal generated by the TracPac to recover the item and apprehend the suspect.
 
     In both its paging and security systems operations, the Company builds and
operates communications systems and generates revenues from the sale and lease
of pagers, Intelligent Processing Terminal ("ipt") systems and security devices
and related access fees. The Company's revenues are derived primarily from fixed
monthly, quarterly, annual and bi-annual fees charged to customers for paging
and security tracking services. While a subscriber remains in service, operating
results benefit from this recurring monthly revenue stream with minimal
requirements for additional selling expenses or other fixed costs. However,
certain variable costs such as telephone and equipment charges are directly
related to the number of pagers in service.
 
     Each month a percentage of the customer base disconnects service for a
variety of reasons. ProNet does, however, place substantial emphasis on customer
care and quality of service and as a result its paging business currently has a
disconnect ("churn") rate in line with the industry average of approximately
3.1% (source: The State of the U.S. Paging Industry: 1995, June 1995, Economic
and Management Consultants International, Inc.). Churn is the number of
customers disconnecting service each month as a percentage of the total
subscriber base. Although the Company's current disconnect rate of 2.9% is in
line with the industry average, there can be no assurance that the Company will
not experience an increase in its churn rate, which may adversely affect the
Company's results of operations. The Company's monthly churn rate in the
security tracking business is lower than in its paging business -- currently
approximately 1%.
 
     Currently, service revenues consist of two components -- service fees and
unit leasing fees. As the Company pursues its strategy of expanding into new
markets, increasing its coverage within its existing service areas and
broadening its customer base and distribution channels, the percentage of
customers who own and maintain ("COAM") their paging equipment rather than
leasing it from the Company is likely to increase. This, together with
competitive factors, may result in declining service revenues per subscriber
since these customers will not pay a leasing fee as part of their monthly
charge. However, the Company will not incur the capital costs related to these
COAM pagers. Additionally, average revenue per unit ("ARPU") for pagers served
through resellers is lower than for direct sales due to the wholesale rates
charged to this distribution
 
                                      F-101
<PAGE>   244
 
channel. Such resellers do, however, assume all selling, marketing, subscriber
management and related costs that would otherwise be incurred by the Company.
 
     Product sales and costs are also likely to increase as the business mix
shifts in favor of COAM units. The Company's objective is to break even on
product sales, but it may selectively offer discounts due to promotional offers
or competitive pressures.
 
     The Company currently enjoys low operating costs per unit due to the
efficiency of its operations. It expects that the development of its business
around its SuperCenters will result in economies of scale and consolidation of
operating and selling expenses that will help it retain this competitive
advantage.
 
     Earnings before other income (expense), income taxes, depreciation and
amortization and nonrecurring charges ("EBITDA") is a standard measure of
operating performance in the paging industry. The Company's EBITDA has grown at
a compound annual rate of approximately 43% over the past four years, while cash
flows from operating activities has decreased at a compound annual rate of 61%
for the same period. Cash flows from operating activities is derived from the
statement of cash flows and differs from EBITDA primarily due to interest
expense and changes in working capital. EBITDA growth is expected to continue
although near term EBITDA margins may be slightly impacted by legal costs,
start-up costs associated with certain SuperCenters and new enhanced products
and services and the buildout of existing and acquired frequencies in the
Company's marketplaces. Cash flow from operating activities is expected to
fluctuate based upon the changes in working capital and fluctuations in interest
expense resulting from changes in the prevailing interest rates and the level of
borrowing on the Company's revolving line of credit. Non-cash and
financing-related charges for the Company's acquisition program have negatively
impacted earnings in 1996 and the first six months of 1997 and have the
potential to continue this trend in the future.
 
     On August 8, 1997, the Company signed a definitive agreement ("the Merger
Agreement") to merge into Metrocall, Inc. ("Metrocall"). Metrocall will issue
approximately 12.3 million shares of Metrocall common stock, which will be
converted at a ratio of 0.9 Metrocall shares per ProNet share, as adjusted.
Total value of the merger is approximately $73.8 million. Metrocall will also
assume approximately $170.2 million in the Company's debt.
 
     This transaction is subject to the approval of the Company's and
Metrocall's stockholders, and approval of Metrocall's stockholders of an
increase in Metrocall's authorized common shares to 80 million. The Merger
Agreement is also subject to other terms and conditions, including regulatory
approvals, consents by Metrocall's banks and approval of certain pending
securities litigation settlements involving the Company in accordance with
previously announced settlements.
 
     For additional information regarding the transactions contemplated in the
Merger Agreement, reference is made to the Agreement and Plan of Merger and
certain other documents entered into in connection with the Merger Agreement,
copies of which are incorporated herein by reference through Metrocall's Form
8-K dated August 11, 1997.
 
     The following discussion and analysis of financial condition and results of
operations includes the historical results of operations of the Company and the
results of operations from the respective acquisition dates of all acquisitions
completed by the Company since 1994.
 
                                      F-102
<PAGE>   245
 
PAGING SYSTEMS' RESULTS OF OPERATIONS FOR THE
THREE AND SIX MONTHS ENDED JUNE 30, 1997 AND 1996
<TABLE>
<CAPTION>
                                                        THREE MONTHS ENDED       SIX MONTHS ENDED
                                                             JUNE 30,                JUNE 30,
                                                       --------------------    --------------------
                                                         1997        1996        1997        1996
                                                       --------    --------    --------    --------
<S>                                                    <C>         <C>         <C>         <C>
                                                          (IN THOUSANDS)          (IN THOUSANDS)
 
<CAPTION>
<S>                                                    <C>         <C>         <C>         <C>
REVENUES
  Service revenues..................................   $ 22,878    $ 19,578    $ 45,407    $ 39,136
  Product sales.....................................      5,552       3,889      10,422       7,013
                                                       --------    --------    --------    --------
          Total revenues............................     28,430      23,467      55,829      46,149
  Net book value of products sold...................     (3,644)     (3,355)     (7,183)     (6,136)
                                                       --------    --------    --------    --------
Net revenues (1)....................................     24,786      20,112      48,646      40,013
Cost of services....................................     (7,264)     (5,712)    (14,450)    (11,224)
                                                       --------    --------    --------    --------
Gross margin........................................     17,522      14,400      34,196      28,789
Sales and marketing expenses........................      4,231       3,781       8,446       7,737
General and administrative expenses.................      6,655       5,839      12,953      11,000
Depreciation and amortization expenses..............     16,682       8,015      32,313      16,326
Nonrecurring charges................................      6,550       7,374       6,550       7,374
                                                       --------    --------    --------    --------
Operating loss......................................   $(16,596)   $(10,609)   $(26,066)   $(13,648)
                                                       --------    --------    --------    --------
EBITDA..............................................   $  6,636    $  4,780    $ 12,797    $ 10,052
                                                       ========    ========    ========    ========
</TABLE>
 
- ---------------
(1) Net revenues represent revenues from services, rent and maintenance plus
    product sales less cost of products sold.
 
     Paging Systems' Net Revenues for the three and six months ended June 30,
1997 increased 23% to $24.8 million and 22% to $48.6 million, respectively, from
$20.1 million and $40.0 million, respectively, for the comparable periods in
1996. Service revenues increased 17% and 16%, to $22.9 million and $45.4
million, respectively, for the three and six months ended June 30, 1997,
compared to $19.6 million and $39.1 million, respectively, for the comparable
periods in 1996. These increases are primarily attributable to a growing
subscriber base achieved through greater market penetration in existing markets
and three acquisitions between June 30, 1996 and June 30, 1997. Pagers in
service increased 25% to 1,385,354 at June 30, 1997 from 1,107,444 at June 30,
1996. The increase in pagers in service was primarily the result of these recent
acquisitions. In 1994, 1995 and 1996, most of the Company's growth in pagers in
service was from acquisitions. In addition, internal growth accounted for 51,622
units during the quarter ended June 30, 1997, which represents a year over year
internal growth rate of approximately 17%.
 
     ARPU was $5.61 for the quarter ended June 30, 1997 compared to $6.09 for
the quarter ended June 30, 1996. This decrease was due to a further shift in the
Company's subscriber base from direct to indirect distribution channels which
tend to generate lower revenues per subscriber. The Company's subscriber base
was 76% COAM at June 30, 1997 compared to 74% at June 30, 1996. The Company
believes that ARPU will continue to decrease, although at a slower rate, as the
Company expands its indirect distribution channels.
 
     Product Sales Less Net Book Value of Products Sold was $1,908,000 and
$3,239,000 for the three and six months ended June 30, 1997, compared to
$534,000 and $877,000 for the comparable periods in 1996. The margin increased
in 1997 primarily due to increases in product sales and the sale of a frequency
in the first quarter of 1997. Management anticipates that the Company's margins
may vary from market to market due to competition and other factors.
 
     Paging Systems' Gross Margin (net revenues less cost of services) was $17.5
million (71% of paging systems' net revenues) and $34.2 million (70% of paging
systems' net revenues) for the three and six months ended June 30, 1997,
compared to $14.4 million (72% of paging systems' net revenues) and $28.8
million (72% of paging systems' net revenues) for the comparable periods in
1996. The decrease in gross margin as a percentage of paging systems' net
revenues was due to the increased expenses related to recent acquisitions,
 
                                      F-103
<PAGE>   246
 
start-up costs associated with certain SuperCenters and the buildout of existing
and acquired frequencies in its marketplaces, primarily consisting of telephone,
salaries, tower rent and third party access fees. The Company currently
anticipates that these margins will decrease slightly in the short term, but
will increase in the future as cost efficiencies and integration savings are
achieved and as revenues from new systems increase without a relative increase
in these costs. The cost of services increased to $7.3 million and $14.5 million
for the three and six months ended June 30, 1997, compared to $5.7 million and
$11.2 million for the comparable periods of the prior year, as a result of the
increased costs of servicing a substantially larger subscriber base resulting
from both internal growth and acquisitions.
 
     Paging Systems' Sales and Marketing Expenses were $4.2 million (17% of
paging systems' net revenues) and $8.4 million (17% of paging systems' net
revenues) for the three and six months ended June 30, 1997, compared to $3.8
million (19% of paging systems' net revenues) and $7.7 million (19% of paging
systems' net revenues) for the comparable periods of the prior year. The
decrease as a percentage of paging systems' net revenues was primarily due to
savings resulting from the integration of certain acquired retail counters and
the elimination of redundant expenses. These expenses as a percentage of paging
systems' net revenues may increase slightly in the future due to the Company's
focus on expanding its direct distribution channel.
 
     Paging Systems' General and Administrative Expenses were $6.7 million (27%
of paging systems' net revenues) and $12.9 million (27% of paging systems' net
revenues) for the three and six months ended June 30, 1997, compared to $5.8
million (29% of paging systems' net revenues) and $11.0 million (28% of paging
systems' net revenues) for the comparable periods in 1996. The stabilization as
a percentage of paging systems' net revenues was due primarily to the
integration of certain acquisitions completed since June 1996 into the
SuperCenter structure, as well as the increase in the number of acquired retail
store locations referred to above. Management anticipates that paging systems'
general and administrative expenses as a percentage of net revenues will
decrease slightly over time as a result of general and administrative expenses
being spread across a larger subscriber base.
 
     Paging Systems' Depreciation and Amortization Expenses for the three and
six months ended June 30, 1997 increased 108% to $16.7 million and 98% to $32.3
million, respectively, from $8.0 million and $16.3 million for the comparable
periods in 1996. The increase was due to the amortization of intangibles arising
from the acquisitions and the depreciation of additional paging equipment from
acquisitions and capital investment for buildout of frequencies and system
support. The Company expects this trend in depreciation and amortization
expenses to continue in the near term as a result of continued capital
investment in paging equipment to support the Company's growth.
 
     Paging Systems' Nonrecurring Charges were $6.6 million for the three and
six months ended June 30, 1997. These costs represent nonrecurring costs related
to the settlement of pending litigation and consisted primarily of settlement,
legal and accounting costs associated with the settlement. Nonrecurring charges
were $7.4 million for the three and six months ended June 30, 1996. These costs
represent nonrecurring costs related to a terminated merger with Teletouch
Communications, Inc. ("Teletouch") and related planned financing, consisting
primarily of underwriting, advisory, legal and accounting fees and merger
financing costs.
 
     EBITDA for paging systems' operations was $6.6 million (27% of paging
systems' net revenues) and $12.8 million (26% of paging systems' net revenues)
for the three and six months ended June 30, 1997, compared to $4.8 million (24%
of paging systems' net revenues) and $10.1 million (25% of paging systems' net
revenues) for the comparable periods in 1996. The Company believes EBITDA will
increase slightly as a percentage of net revenues over time as the Company
spreads its costs over a larger subscriber base and achieve resulting economies
of scale and operating efficiencies.
 
                                      F-104
<PAGE>   247
 
SECURITY SYSTEMS' RESULTS OF OPERATIONS FOR THE
THREE AND SIX MONTHS ENDED JUNE 30, 1997 AND 1996
<TABLE>
<CAPTION>
                                                             THREE MONTHS
                                                                 ENDED           SIX MONTHS ENDED
                                                               JUNE 30,              JUNE 30,
                                                           -----------------     -----------------
                                                            1997       1996       1997       1996
                                                           ------     ------     ------     ------
<S>                                                        <C>        <C>        <C>        <C>
                                                            (IN THOUSANDS)        (IN THOUSANDS)
 
<CAPTION>
<S>                                                        <C>        <C>        <C>        <C>
REVENUES
  Service revenues......................................   $1,627     $1,348     $3,155     $2,806
  Product sales.........................................        2         --          8         22
                                                           ------     ------     ------     ------
          Total revenues................................    1,629      1,348      3,163      2,828
  Cost of products sold.................................       --         --         --         --
                                                           ------     ------     ------     ------
Net revenues (1)........................................    1,629      1,348      3,163      2,828
Cost of services........................................     (470)      (315)      (901)      (590)
                                                           ------     ------     ------     ------
Gross margin............................................    1,159      1,033      2,262      2,238
Sales and marketing expenses............................       27         95         36        178
General and administrative expenses.....................       73        165        136        344
Depreciation and amortization expenses..................      425        410        804        806
                                                           ------     ------     ------     ------
Operating income........................................   $  634     $  363     $1,286     $  910
                                                           ======     ======     ======     ======
EBITDA..................................................   $1,059     $  773     $2,090     $1,716
                                                           ======     ======     ======     ======
</TABLE>
 
- ---------------
(1) Net revenues represent revenues from services, rent and maintenance plus
    product sales less cost of products sold.
 
     Security Systems' Total Revenues increased 21% to $1.6 million and 12% to
$3.2 million for the three and six months ended June 30, 1997, from $1.3 million
and $2.8 million for the comparable periods in 1996. The increase was due to the
installation of 2 new systems since June 30, 1996, as well as expansion of and
additional penetration in existing markets. The number of TracPacs in service
decreased 2% to 28,796 at June 30, 1997, from 29,329 at June 30, 1996.
 
     Security Systems' Operating Income was $634,000 and $1,286,000 for the
three and six months ended June 30, 1997, compared to $363,000 and $910,000 for
the same periods in 1996. The increase in operating income resulted primarily
from increased revenues and decreased sales and marketing and general and
administrative expenses.
 
     EBITDA for the security systems' operations was $1,059,000 (65% of security
systems' net revenues) and 2,090,000 (66% of security systems' service revenues)
for the three and six months ended June 30, 1997, compared to $773,000 (57% of
security systems' net revenues) and $1.7 million (61% of security systems' net
revenues) for the same periods in 1996. The increase was primarily due to
increases in net revenues and decreases in sales and marketing and general and
administrative expenses.
 
OTHER INCOME (EXPENSE)
 
     Other income (expense) includes interest income generated from short-term
investments and interest expense incurred. The period-to-period fluctuations in
interest expense have resulted primarily from changes in the outstanding amounts
under the revolving line of credit. Interest expense increased for the three
months and six months ended June 30, 1997 from prior periods primarily as a
result of increased borrowing under the revolving line of credit. Interest
expense is expected to continue to fluctuate based on changes in the outstanding
amounts under the revolving line of credit and changes in interest rates.
 
FEDERAL INCOME TAXES
 
     At December 31, 1996 the Company had net operating loss carryforwards of
$45.7 million for income tax purposes that expire in years 2005 through 2011.
For the three and six months ended June 30, 1997, the
 
                                      F-105
<PAGE>   248
 
differences between the U.S. Federal statutory tax rate and the effective rate
in the Company's historical financial statements are state income taxes, net
operating losses with no benefit and the amortization of goodwill related to
stock acquisitions, which is not deductible for tax purposes
 
LIQUIDITY AND CAPITAL RESOURCES
 
     During 1996 and 1997, the Company financed the majority of its growth,
other than acquisitions, through internally generated funds. Net cash provided
by operating activities was $13.5 million for the six months ended June 30,
1997, compared to net cash used in operating activities of $4.3 million for the
comparable period in 1996. The increase in cash provided by operating activities
was primarily due to decreases in trade accounts receivable and other assets and
increases in trade payables and other accrued expenses and liabilities.
Acquisitions prior to September 1995 were financed with borrowings under the
Company's revolving line of credit. Proceeds from the sale of the senior
subordinated notes issued in 1995 were used to repay all indebtedness
outstanding under the Company's revolving line of credit and to fund the
remaining acquisitions in 1995. The purchase of the Nationwide License in July
1996 was funded with $28 million from the Company's equity offering in June 1996
and $15 million with borrowings under its revolving line of credit. The $8.9
million cash portion of the acquisition of Modern in the first quarter of 1997
was also funded with borrowings under its revolving line of credit. The Company
anticipates that its ongoing capital needs will be funded with additional
borrowings and net cash generated by operations.
 
CAPITAL EXPENDITURES
 
     As of June 30, 1997, the Company had invested $114.4 million in system
equipment and pagers for its major metropolitan markets and $13.9 million in
system equipment and TracPacs for its 34 security systems.
 
     Capital expenditures for paging systems' equipment was $6.4 million for the
six months ended June 30, 1997 compared to $9.7 million for the comparable
period in 1996 (excluding assets acquired pursuant to the completed
acquisitions). Capital expenditures for security systems' equipment and TracPacs
for the six months ended June 30, 1997 was $270,000 compared to $803,000 for the
comparable period in 1996.
 
     Except for those assets acquired through acquisitions and any capital costs
associated with new enhanced products and services, the Company expects to meet
its capital requirements in 1997 with cash generated from operations. Although
the Company had no material binding commitments to acquire capital equipment at
June 30, 1997, the Company anticipates capital expenditures for the remainder of
1997 to be $14.0 million for the purchase of system equipment for its current
paging systems' operations and $400,000 for the manufacture of TracPacs and the
purchase of system equipment for its security systems' operations.
 
CREDIT FACILITIES
 
     The $150 million under the Company's revolving line of credit consists of a
$25 million revolving line of credit maturing December 31, 2003, and a $125
million two-year revolving line of credit which converts July 1, 1998 to a term
loan maturing December 31, 2003. The borrowings bear interest, at the Company's
designation, at either (i) the ABR plus a margin of up to 1.5%, or (ii) the
Eurodollar Base Rate plus a margin of up to 2.75%. The term loan will be payable
in quarterly installments, based on the principal amount outstanding on the
conversion date, in amounts ranging from 7% initially to 20%. Loans bearing
interest based on ABR may be prepaid at any time, and loans bearing interest
based on the Eurodollar Rate may not be paid prior to the last day of the
applicable interest period. A commitment fee of either .375% or .5% on the
average daily unused portion of the Credit Facilities is required to be paid
quarterly.
 
SENIOR SUBORDINATED NOTES
 
     In June 1995, the Company completed a Rule 144A Offering of $100 million
principal amount of its 11 7/8% senior subordinated notes due 2005 (the "1995
Notes"). Proceeds to the Company from the sale of the 1995 Notes, after
deducting discounts, commissions and offering expenses, were approximately $95.6
million. The Company used approximately $49.4 million of the net proceeds to
repay all indebtedness outstanding under the existing revolving line of credit.
The Company used the remaining proceeds to pursue the
 
                                      F-106
<PAGE>   249
 
Company's acquisition strategy, to purchase frequency rights, to make capital
expenditures for buildout of the Company's regional paging systems and for
enhanced services, and for working capital and general corporate purposes.
 
     The 1995 Notes are general unsecured obligations of the Company and are
subordinated to all existing and future senior debt of the Company. The
indenture provides that the Company may not incur any debt that is subordinate
in right of payment to the senior debt and senior in right of payment to the
1995 Notes. The indenture also contains certain covenants that, among other
things, limit the ability of the Company and its subsidiaries to incur
indebtedness, pay dividends, engage in transactions with affiliates, sell assets
and engage in certain other transactions. Interest on the 1995 Notes is payable
in cash semi-annually on each June 15 and December 15, commencing December 15,
1995. The 1995 Notes will not be redeemable at the Company's option prior to
June 15, 2000.
 
     The Company filed a Form S-4 Registration Statement (the "1995 S-4") on
July 7, 1995 to register the 1995 Notes with the SEC under the Securities Act of
1933, as amended. On October 6, 1995, the SEC declared the 1995 S-4 effective.
 
COMMON STOCK OFFERING
 
     In June 1996, the Company issued four million shares of its Common Stock at
a price of $25 per share. The net proceeds to the Company from the Offering,
after deducting commissions and offering expenses were approximately $94.8
million. Also in June 1996, the Company used approximately $48 million of the
net proceeds of the Offering to repay all outstanding indebtedness under its
existing revolving line of credit, $3 million to pay bank fees for the Credit
Facilities, $6 million to pay interest due on the 1995 Notes, and $8 million to
fund interest, penalty and underwriters fees for senior subordinated notes
related to the terminated Teletouch merger. In July 1996, the Company used
approximately $28 million of the Offering proceeds to purchase the Nationwide
License. The remaining proceeds were used to fund capital expenditures and for
working capital and general operating needs.
 
ACQUISITIONS
 
     In 1993, the Company announced its plans to commence a program of acquiring
businesses that serve the commercial paging market and offer operational
synergies when integrated within the Company's SuperCenters. During 1994, 1995
and 1996, the Company completed 21 acquisitions at a total cost of $198.9
million. The 21 completed acquisitions were accounted for as purchases and
funded by borrowings under the Company's revolving line of credit, proceeds from
the sale of the 1995 Notes and issuances of shares of the Company's Common
Stock. On March 1, 1997, the Company acquired substantially all of the
outstanding capital stock of Modern for a purchase price of $9.2 million. This
acquisition was accounted for as a purchase and was funded by borrowings under
the Credit Facilities.
 
     At December 31, 1996, the Company had deferred payments of $5.7 million
outstanding related to various acquisitions which are due and payable one year
from the closing of the respective transactions. The balances are payable, at
the Company's obligation or discretion, either in cash or shares of the
Company's Common Stock based on current market value at the date of payment. In
January 1997, the Company paid $4.9 million in cash and issued 46,232 shares of
its Common Stock in payment of $5.7 million of deferred payments related to
various acquisitions.
 
LITIGATION
 
     If the proposed agreement in principle defined in "Item 1 -- Legal
Proceedings" and "Note F -- Litigation" to the Consolidated Financial Statements
is not finalized in accordance with the terms described therein, the final
outcome of the securities class actions could have a material adverse effect on
the Company's results of operations during fiscal year 1997 or subsequent
periods.
 
                                      F-107
<PAGE>   250
 
FORWARD-LOOKING STATEMENTS
 
     Certain statements contained herein are not based on historical facts, but
are forward-looking statements that are based upon numerous assumptions as of
the date of this filing that could prove not to be accurate. These statements
appear in a number of places in this report and include statements regarding the
intent, belief or current expectations of the Company, its officers or its
directors with respect to, among other things: (i) acquisitions and product
development; (ii) the Company's financing plans; (iii) trends affecting the
Company's financial condition or results of operations; and (iv) regulatory
matters affecting the Company. Actual events, transactions and results may
materially differ from the anticipated events, transactions or results described
in such statements. The Company's ability to achieve such events, transactions
or results is subject to certain risks and uncertainties. Such risks and
uncertainties include, but are not limited to, the existence of, demand for and
acceptance of the Company's products and services, regulatory approval, economic
conditions, the impact of competition and pricing, the availability of
appropriate candidates for acquisition by the Company, results of financing
efforts and other factors affecting the Company's business that are beyond the
Company's control, including but not limited to the matters described in "Risk
Factors" included in the Form 10-K for the Company filed with the SEC on March
28, 1997. The Company disclaims any obligations to update the forward-looking
statements contained herein.
 
                                      F-108
<PAGE>   251
 
                                                                      APPENDIX A
 
                                METROCALL, INC.
              PROXY SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
 
    The undersigned stockholder hereby constitutes and appoints the Proxy
Committee comprised of Suzanne S. Brock and Ronald V. Aprahamian the true and
lawful agent and proxy with full power of substitution, to represent the
undersigned at the Special Meeting of Stockholders of Metrocall, Inc. to be held
at the Ritz-Carlton, Pentagon City, 1250 South Hayes Street, Arlington, Virginia
on December 17, 1997, at 9:00 a.m., local time, and at any adjournments thereof,
on all matters coming before said meeting.
 
    YOU ARE ENCOURAGED TO SPECIFY YOUR CHOICES BY MARKING THE APPROPRIATE BOXES,
SEE REVERSE SIDE, BUT YOU NEED NOT MARK ANY BOXES IF YOU WISH TO VOTE IN
ACCORDANCE WITH THE BOARD OF DIRECTORS RECOMMENDATIONS. THE PROXY COMMITTEE
CANNOT VOTE YOUR SHARE(S) UNLESS YOU SIGN AND RETURN THIS CARD.
 
    The undersigned stockholder may revoke this proxy at any time before it is
voted by delivering to the Assistant Secretary of Metrocall, Inc. either a
written revocation of the proxy or a duly executed proxy bearing a later date,
or by appearing at the Special Meeting and voting in person.
 
                                                          SEE REVERSE
                                                            SIDE

- --------
           PLEASE MARK YOUR                                           6615 
  X        VOTES AS IN THIS
           EXAMPLE.
- --------
                                                                        
 
    THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED
HEREIN. IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED FOR EACH PROPOSAL.

         THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" ALL PROPOSALS.
 
    1. Approval and adoption of the Agreement and Plan of Merger.
 
       FOR [ ]    AGAINST [ ]    ABSTAIN [ ]
 
    2. Approval and adoption of an amendment to the Amended and Restated
       Certificate of Incorporation increasing the number of authorized shares
       of Metrocall Common Stock from 60,000,000 shares to 80,000,000 shares.
 
       FOR [ ]    AGAINST [ ]    ABSTAIN [ ]
 
    3. Approval and adoption of an amendment to the Metrocall 1996 Stock Option
       Plan increasing the number of shares that may be issued thereunder by
       2,000,000 shares.
 
       FOR [ ]    AGAINST [ ]    ABSTAIN [ ]
 
    4. Approval and adoption of an amendment to the Metrocall Employee Stock
       Purchase Plan increasing the number of shares that may be issued
       thereunder by 700,000 shares.
 
       FOR [ ]    AGAINST [ ]    ABSTAIN [ ]
 
    5. In its discretion, the Proxy Committee is authorized to vote such other
       business as may properly come before the meeting or any adjournment
       thereof.
 
       NOTE: Please sign exactly as name appears hereon. Only one signature is
       required in the case of jointly owned stock. When signing as attorney,
       executor, administrator, trustee or guardian, please give full title as
       such.
 
                                          --------------------------------------
 
I PLAN TO ATTEND THE MEETING [ ]          --------------------------------------
                                            SIGNATURE(S)                DATE
 
                                METROCALL, INC.
 
                        Special Meeting of Stockholders
                               December 17, 1997
 
                          Ritz-Carlton, Pentagon City
                            1250 South Hayes Street
                              Arlington, Virginia
<PAGE>   252
 
                                                                      APPENDIX B
 
                                  PRONET INC.
              PROXY SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
 
    The undersigned stockholder hereby constitutes and appoints each of Jackie
R. Kimzey and Mark A. Solls (the "Proxies") as the true and lawful agent and
proxy with full power of substitution, to represent the undersigned at the
Special Meeting of Stockholders of ProNet Inc. to be held at the              ,
Dallas, Texas on December   , 1997, at     a.m., local time, and at any
adjournments thereof, on all matters coming before said meeting.
 
    YOU ARE ENCOURAGED TO SPECIFY YOUR CHOICES BY MARKING THE APPROPRIATE BOXES,
SEE REVERSE SIDE, BUT YOU NEED NOT MARK ANY BOXES IF YOU WISH TO VOTE IN
ACCORDANCE WITH THE BOARD OF DIRECTORS RECOMMENDATIONS. THE PROXIES CANNOT VOTE
YOUR SHARE(S) UNLESS YOU SIGN AND RETURN THIS CARD.
 
    The undersigned stockholder may revoke this proxy at any time before it is
voted by delivering to the Secretary of ProNet Inc. either a written revocation
of the proxy or a duly executed proxy bearing a later date, or by appearing at
the Special Meeting and voting in person.

                                                         SEE REVERSE
                                                            SIDE

- --------
           PLEASE MARK YOUR                                           
  X        VOTES AS IN THIS
           EXAMPLE.
- --------
 
 
    THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED
HEREIN. IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED FOR THE FOLLOWING
PROPOSAL.

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE FOLLOWING PROPOSAL.
 
    1. Approval and adoption of the Agreement and Plan of Merger.
 
       FOR [ ]    AGAINST [ ]    ABSTAIN [ ]
 
    2. In its discretion, the Proxies are authorized to vote such other business
       as may properly come before the meeting or any adjournment thereof.
 
       NOTE: Please sign exactly as name appears hereon. Only one signature is
       required in the case of jointly owned stock. When signing as attorney,
       executor, administrator, trustee or guardian, please give full title as
       such.
 
                                          --------------------------------------
 
I PLAN TO ATTEND THE MEETING [ ]          --------------------------------------
                                            SIGNATURE(S)                DATE
 
                                  PRONET INC.
 
                        Special Meeting of Stockholders
                              December     , 1997
 
                -------------------------------------------

                -------------------------------------------
                                 Dallas, Texas
<PAGE>   253
 
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     Section 145 of the DGCL empowers a Delaware corporation to indemnify any
person who was or is, or is threatened to be made, a party to any threatened,
pending or completed action, suit or proceeding, whether civil, criminal,
administrative or investigative (other than an action by or in the right of such
corporation) by reason of the fact that such person is or was a director,
officer, employee or agent of such corporation, or is or was serving at the
request of such corporation as a director, officer, employee or agent of another
corporation, partnership, joint venture, trust or other enterprise. The
indemnity may include expenses (including attorneys' fees), judgments, fines and
amounts paid in settlement actually and reasonably incurred by such person in
connection with such action, suit or proceeding, provided that such person acted
in good faith and in a manner such person reasonably believed to be in or not
opposed to the best interests of the corporation, and, with respect to any
criminal action or proceeding, such person had no reasonable cause to believe
his conduct was unlawful. A Delaware corporation may indemnify such persons
against expenses (including attorneys' fees) in actions brought by or in the
right of the corporation to procure a judgment in its favor under the same
conditions, except that no indemnification is permitted in respect of any claim,
issue or matter as to which such person shall have been adjudged to be liable to
the corporation unless and to the extent the Court of Chancery of the State of
Delaware or the court in which such action or suit was brought shall determine
upon application that, in view of all circumstances of the case, such person is
fairly and reasonably entitled to indemnity for such expenses as the Court of
Chancery or other such court shall deem proper. To the extent such person has
been successful on the merits or otherwise in defense of any action referred to
above, or in defense of any claim, issue or matter therein, the corporation must
indemnify such person against expenses (including attorneys' fees) actually and
reasonably incurred by such person in connection therewith. The indemnification
and advancement of expenses provided for in, or granted pursuant to, Section 145
is not exclusive of any other rights to which those seeking indemnification or
advancement of expenses may be entitled under any by-law, agreement, vote of
stockholders or disinterested directors or otherwise.
 
     Section 145 also provides that a corporation may maintain insurance against
liabilities for which indemnification is not expressly provided by the statute.
 
     Section 6 of the Metrocall Amended and Restated Certificate of
Incorporation provides for indemnification of the directors, officers, employees
and agents of Metrocall to the full extent currently permitted by the DGCL.
 
     In addition, the Metrocall Amended and Restated Certificate of
Incorporation, as permitted by Section 102(b) of the DGCL, limits directors'
liability to Metrocall and its stockholders by eliminating liability in damages
for breach of fiduciary duty. Section 5.5 of the Metrocall Amended and Restated
Certificate of Incorporation provides that neither Metrocall nor its
stockholders may recover damages from Metrocall directors for breach of their
fiduciary duties in the performance of their duties as directors of Metrocall.
As limited by Section 102(b), this provision cannot, however, have the effect of
indemnifying any director of Metrocall in the case of liability (i) for a breach
of the director's duty of loyalty, (ii) for acts of omissions not in good faith
or which involve intentional misconduct or a knowing violation of law, (iii) for
unlawful payments of dividends or unlawful stock repurchases or redemptions as
provided in Section 174 of the DGCL or (iv) for any transactions for which the
director derived an improper personal benefit.
 
                                      II-1
<PAGE>   254
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
<TABLE>
<S>                <C>
     (a) Exhibits
           2.1     Agreement and Plan of Merger dated as of August 8, 1997, between Metrocall,
                   Inc. and ProNet Inc.(a)
           2.2     Option Agreement dated as of August 8, 1997, between Metrocall, Inc. and
                   ProNet Inc.(a)
           2.3     Amendment to Option Agreement dated as of August 29, 1997, between
                   Metrocall, Inc., and ProNet Inc.(b)
           2.4     Stockholders Voting Agreement dated as of August 8, 1997, among ProNet Inc.
                   and certain stockholders of Metrocall, Inc. listed therein.(a)
           3.1     Amended and Restated Certificate of Incorporation of Metrocall, Inc., as
                   amended.+
           3.2     Certificate of Amendment of Certificate of Incorporation of Metrocall, Inc.+
           3.3     Fifth Amended and Restated Bylaws of Metrocall, Inc., as amended.+
           4.1     Specimen Certificate representing Metrocall, Inc. Common Stock.(c)
           4.2     Indenture, including form of 10 3/8% Senior Subordinated Notes due 2007.(d)
           4.3     Indenture for A+ Network, Inc. 11 7/8% Senior Subordinated Notes due 2005
                   dated October 24, 1995 ("A+ Notes").(e)
           4.4     First Supplemental Indenture dated November 14, 1996, for A+ Notes.(f)
           4.5     Second Supplemental Indenture dated November 14, 1996, for A+ Notes.(f)
           5.1     Opinion of Wilmer, Cutler & Pickering as to the legality of the Metrocall,
                   Inc. Common Stock being registered.+
           8.1     Opinion of Wilmer, Cutler & Pickering as to certain tax matters.+
           8.2     Opinion of Vinson & Elkins L.L.P. as to certain tax matters.+
          10.1     Noncompetition Agreement dated as of August 8, 1997, between Metrocall, Inc.
                   and Jackie R. Kimzey.
          10.2     Noncompetition Agreement dated as of August 8, 1997, between Metrocall, Inc.
                   and David J. Vucina.
          10.3     Letter Agreement dated August 8, 1997, between Metrocall, Inc. and Jackie R.
                   Kimzey.
          10.4     Letter Agreement dated August 8, 1997, between Metrocall, Inc. and David J.
                   Vucina.
          10.5     Letter Agreement dated August 8, 1997, between Metrocall, Inc. and Jan E.
                   Gaulding.
          10.6     Letter Agreement dated August 8, 1997, between Metrocall, Inc. and Mark A.
                   Solls.
          10.7     Letter Agreement dated August 8, 1997, between Metrocall, Inc. and Jeffery
                   A. Owens.
          10.8     Metrocall 1996 Stock Option Plan, as amended.(g)
          10.9     Metrocall Employee Stock Purchase Plan.(h)
          10.10    Amended and Restated Loan Agreement ("Loan Agreement") among Metrocall,
                   Inc., the Toronto-Dominion Bank and the First National Bank of Boston, with
                   Toronto-Dominion Bank as "Documentation Agent," the First National Bank of
                   Boston as "Syndication Agent," the Toronto-Dominion Bank and the First
                   National Bank of Boston as "Managing Agents," and Toronto-Dominion (Texas),
                   Inc. as "Administrative Agent."(i)
          10.11    First Amendment to Loan Agreement, dated April 30, 1997.
          10.12    Second Amendment to Loan Agreement, dated August 11, 1997.
          23.1     Consent of Wilmer, Cutler & Pickering (included in Exhibits 5.1 and 8.1).
          23.2     Consent of Morgan Stanley & Co. Incorporated as financial adviser to
                   Metrocall, Inc.
          23.3     Consent of Arthur Andersen LLP, as independent public accountants for
                   Metrocall, Inc.
          23.4     Consent of Arthur Andersen LLP, as independent public accountants for O.R.
                   Estman, Inc. and Dana Paging, Inc. dba Satellite Paging.
          23.5     Consent of Hutton, Patterson & Company, as independent public accountants
                   for Parkway Paging, Inc.
          23.6     Consent of Deloitte & Touche LLP, as independent public accountants for A+
                   Network, Inc.
          23.7     Consent of Price Waterhouse LLP, as independent public accountants for
                   Network Paging Corporation.
</TABLE>
 
                                      II-2
<PAGE>   255
 
<TABLE>
    <S>  <C>       <C>
          23.8     Consent of Ernst & Young LLP, as independent auditors for ProNet Inc.
          23.9     Consent of Salomon Brothers Inc as financial adviser to ProNet Inc.
          23.10    Consent of Vinson & Elkins L.L.P. (included in Exhibit 8.2).
          24.1     Power of Attorney (included in signature pages of this Registration
                   Statement).
</TABLE>
 
        -----------------------
        (a) Incorporated by reference to Metrocall's Current Report on Form 8-K
            filed on August 12, 1997.
 
        (b) Incorporated by reference to Metrocall's Current Report on Form 8-K,
            as amended, filed with the Commission on September 8, 1997.
 
        (c) Incorporated by reference to Metrocall's Registration Statement on
            Form S-1, as amended (File No. 33-63886), filed with the Commission
            on July 12, 1993.
 
        (d) Incorporated by reference to Metrocall's Registration Statement on
            Form S-1, as amended (File No. 33-96042), filed with the Commission
            on September 27, 1995.
 
        (e) Incorporated by reference to the Registration Statement on Form S-1
            of A+ Communications, Inc., as amended (File No. 33-95208), filed
            with the Commission on September 18, 1995.
 
        (f) Incorporated by reference to Metrocall's Annual Report on Form 10-K
            for the year ended December 31, 1996, filed with the Commission on
            March 31, 1997.
 
        (g) Incorporated by reference to Metrocall's Proxy Statement filed for
            the Annual Meeting of Stockholders to be held on May 7, 1997.
 
        (h) Incorporated by reference to Metrocall's Proxy Statement filed for
            the Annual Meeting of Stockholders to be held on May 1, 1996.
 
        (i) Incorporated by reference to Metrocall's Registration Statement on
            Form S-3, as amended (File No. 333-13123), filed with the Commission
            on October 1, 1996.
 
         +  To be filed by amendment.
 
ITEM 22. UNDERTAKINGS.
 
     (a)  The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to 15(d) of the Securities
Exchange Act of 1934) that is incorporated by reference in the registration
statement shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof.
 
     (b)  The undersigned registrant hereby undertakes to respond to requests
for information that is incorporated by reference into the prospectus pursuant
to Items 4, 10(b), 11, or 13 of this Form, within one business day of receipt of
such request, and to send the incorporated documents by first class mail or
other equally prompt means. This includes information contained in documents
filed subsequent to the effective date of the registration statement through the
date of responding to the request.
 
     (c)  The undersigned registrant hereby undertakes to supply by means of
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in the registration statement when it became effective.
 
     (d)  The undersigned registrant hereby undertakes as follows: that prior to
any public reoffering of the securities registered hereunder through use of a
prospectus which is a part of this registration statement, by any person or
party who is deemed to be an underwriter within the meaning of Rule 145(c), the
issuer undertakes that such reoffering prospectus will contain the information
called for by the applicable registration form with respect to reofferings by
persons who may be deemed underwriters, in addition to the information called
for by other terms of the applicable form.
 
                                      II-3
<PAGE>   256
 
     (e)  The registrant hereby undertakes that every prospectus: (i) that is
filed pursuant to paragraph (d) immediately preceding, or (ii) that purports to
meet the requirements of Section 10(a)(3) of the Act and is used in connection
with an offering of securities subject to Rule 415, will be filed as a part of
an amendment to the registration statement and will not be used until such
amendment is effective, and that, for purposes of determining any liability
under the Securities Act of 1933, each such post-effective amendment shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
 
     (f)  Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant pursuant to the foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and
Exchange Commission, such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.
 
                                      II-4
<PAGE>   257
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act, the registrant has duly
caused this registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Alexandria, Commonwealth
of Virginia, on September 22, 1997.
 
                                          METROCALL, INC.
 
                                          By:     /s/ VINCENT D. KELLY
 
                                            ------------------------------------
                                            Name: Vincent D. Kelly
                                            Title:  Executive Vice President and
                                              CFO
 
                               POWER OF ATTORNEY
 
     We, the undersigned officers and directors of Metrocall, Inc., hereby
severally constitute and appoint William L. Collins, III and Vincent D. Kelly,
and each of them singly, to sign for us and in our names in the capacities
indicated below, the Registration Statement filed herewith and any and all
amendments to said Registration Statement (including post-effective amendments),
and generally to do all such things in our names and in our capacities as
officers and directors to enable Metrocall, Inc. to comply with the provisions
of the Securities Act of 1933, and all requirements of the Securities and
Exchange Commission, hereby ratifying and confirming our signatures as they may
be signed by our said attorneys, or any of them, to said Registration Statement
and any and all amendments thereto.
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 
<TABLE>
<CAPTION>
            SIGNATURES                             CAPACITY                        DATE
- -----------------------------------   -----------------------------------   -------------------
<C>                                   <C>                                   <S>
 
    /s/ WILLIAM L. COLLINS, III       President, Chief Executive Officer     September 22, 1997
- -----------------------------------                   and
      WILLIAM L. COLLINS, III            Director (Principal Executive
                                                   Officer)
 
       /s/ VINCENT D. KELLY                Executive Vice President,         September 22, 1997
- -----------------------------------     Treasurer, and Chief Financial
         VINCENT D. KELLY              Officer (Principal Financial and
                                              Accounting Officer)
 
      /s/ RICHARD M. JOHNSTON                Chairman of the Board           September 22, 1997
- -----------------------------------
        RICHARD M. JOHNSTON
     /s/ RONALD V. APRAHAMIAN                      Director                  September 22, 1997
- -----------------------------------
       RONALD V. APRAHAMIAN
 
      /s/ HARRY L. BROCK, JR.                      Director                  September 17, 1997
- -----------------------------------
        HARRY L. BROCK, JR.
 
       /s/ SUZANNE S. BROCK                        Director                  September 22, 1997
- -----------------------------------
         SUZANNE S. BROCK
 
    /s/ FRANCIS A. MARTIN, III                     Director                  September 22, 1997
- -----------------------------------
      FRANCIS A. MARTIN, III
 
         /s/ RYAL R. POPPA                         Director                  September 22, 1997
- -----------------------------------
           RYAL R. POPPA
 
      /s/ RAY D. RUSSENBERGER                      Director                  September 22, 1997
- -----------------------------------
        RAY D. RUSSENBERGER
</TABLE>
 
                                      II-5
<PAGE>   258
 
<TABLE>
<CAPTION>
            SIGNATURES                             CAPACITY                        DATE
- -----------------------------------   -----------------------------------   -------------------
<C>                                   <C>                                   <S>
 
       /s/ ELLIOTT H. SINGER                       Director                  September 22, 1997
- -----------------------------------
         ELLIOTT H. SINGER
 
        /s/ MICHAEL GREENE                         Director                  September 22, 1997
- -----------------------------------
          MICHAEL GREENE
 
         /s/ ROYCE YUDKOFF                         Director                  September 22, 1997
- -----------------------------------
           ROYCE YUDKOFF
</TABLE>
 
                                      II-6
<PAGE>   259
 
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
      EXHIBIT
       NUMBER                                      DESCRIPTION
- -------------------- ------------------------------------------------------------------------
<C>                  <S>
         2.1         Agreement and Plan of Merger dated as of August 8, 1997, between
                     Metrocall, Inc. and ProNet Inc.(a)
         2.2         Option Agreement dated as of August 8, 1997, between Metrocall, Inc. and
                     ProNet Inc.(a)
         2.3         Amendment to Option Agreement dated as of August 29, 1997, between
                     Metrocall, Inc., and ProNet Inc.(b)
         2.4         Stockholders Voting Agreement dated as of August 8, 1997, among ProNet
                     Inc. and certain stockholders of Metrocall, Inc. listed therein.(a)
         3.1         Amended and Restated Certificate of Incorporation of Metrocall, Inc., as
                     amended.+
         3.2         Certificate of Amendment of Certificate of Incorporation of Metrocall,
                     Inc.+
         3.3         Fifth Amended and Restated Bylaws of Metrocall, Inc., as amended.+
         4.1         Specimen Certificate representing Metrocall, Inc. Common Stock.(c)
         4.2         Indenture, including form of 10 3/8% Senior Subordinated Notes due
                     2007.(d)
         4.3         Indenture for A+ Network, Inc. 11 7/8% Senior Subordinated Notes due
                     2005 dated October 24, 1995 ("A+ Notes").(e)
         4.4         First Supplemental Indenture dated November 14, 1996, for A+ Notes.(f)
         4.5         Second Supplemental Indenture dated November 14, 1996, for A+ Notes.(f)
         5.1         Opinion of Wilmer, Cutler & Pickering as to the legality of the
                     Metrocall, Inc. Common Stock being registered.+
         8.1         Opinion of Wilmer, Cutler & Pickering as to certain tax matters.+
         8.2         Opinion of Vinson & Elkins L.L.P. as to certain tax matters.+
        10.1         Noncompetition Agreement dated as of August 8, 1997, between Metrocall,
                     Inc. and Jackie R. Kimzey.
        10.2         Noncompetition Agreement dated as of August 8, 1997, between Metrocall,
                     Inc. and David J. Vucina.
        10.3         Letter Agreement dated August 8, 1997, between Metrocall, Inc. and
                     Jackie R. Kimzey.
        10.4         Letter Agreement dated August 8, 1997, between Metrocall, Inc. and David
                     J. Vucina.
        10.5         Letter Agreement dated August 8, 1997, between Metrocall, Inc. and Jan
                     E. Gaulding.
        10.6         Letter Agreement dated August 8, 1997, between Metrocall, Inc. and Mark
                     A. Solls.
        10.7         Letter Agreement dated August 8, 1997, between Metrocall, Inc. and
                     Jeffery A. Owens.
        10.8         Metrocall 1996 Stock Option Plan, as amended.(g)
        10.9         Metrocall Employee Stock Purchase Plan.(h)
        10.10        Amended and Restated Loan Agreement ("Loan Agreement") among Metrocall,
                     Inc., the Toronto-Dominion Bank and the First National Bank of Boston,
                     with Toronto-Dominion Bank as "Documentation Agent," the First National
                     Bank of Boston as "Syndication Agent," the Toronto-Dominion Bank and the
                     First National Bank of Boston as "Managing Agents," and Toronto-Dominion
                     (Texas), Inc. as "Administrative Agent."(i)
        10.11        First Amendment to Loan Agreement, dated April 30, 1997.
        10.12        Second Amendment to Loan Agreement, dated August 11, 1997.
        23.1         Consent of Wilmer, Cutler & Pickering (included in Exhibits 5.1 and
                     8.1).
        23.2         Consent of Morgan Stanley & Co. Incorporated as financial adviser to
                     Metrocall, Inc.
        23.3         Consent of Arthur Andersen LLP, as independent public accountants for
                     Metrocall, Inc.
        23.4         Consent of Arthur Andersen LLP, as independent public accountants for
                     O.R. Estman, Inc. and Dana Paging, Inc. dba Satellite Paging.
        23.5         Consent of Hutton, Patterson & Company, as independent public
                     accountants for Parkway Paging, Inc.
        23.6         Consent of Deloitte & Touche LLP, as independent public accountants for
                     A+ Network, Inc.
        23.7         Consent of Price Waterhouse LLP, as independent public accountants for
                     Network Paging Corporation.
</TABLE>
<PAGE>   260
 
<TABLE>
<CAPTION>
      EXHIBIT
       NUMBER                                      DESCRIPTION
- -------------------- ------------------------------------------------------------------------
<C>                  <S>
        23.8         Consent of Ernst & Young LLP, as independent auditors for ProNet Inc.
        23.9         Consent of Salomon Brothers Inc as financial adviser to ProNet Inc.
        23.10        Consent of Vinson & Elkins L.L.P. (included in Exhibit 8.2).
        24.1         Power of Attorney (included in signature pages of this Registration
                     Statement).
</TABLE>
 
        -----------------------
        (a) Incorporated by reference to Metrocall's Current Report on Form 8-K
            filed on August 12, 1997.
 
        (b) Incorporated by reference to Metrocall's Current Report on Form 8-K,
            as amended, filed with the Commission on September 8, 1997.
 
        (c) Incorporated by reference to Metrocall's Registration Statement on
            Form S-1, as amended (File No. 33-63886), filed with the Commission
            on July 12, 1993.
 
        (d) Incorporated by reference to Metrocall's Registration Statement on
            Form S-1, as amended (File No. 33-96042), filed with the Commission
            on September 27, 1995.
 
        (e) Incorporated by reference to the Registration Statement on Form S-1
            of A+ Communications, Inc., as amended (File No. 33-95208), filed
            with the Commission on September 18, 1995.
 
        (f) Incorporated by reference to Metrocall's Annual Report on Form 10-K
            for the year ended December 31, 1996, filed with the Commission on
            March 31, 1997.
 
        (g) Incorporated by reference to Metrocall's Proxy Statement filed for
            the Annual Meeting of Stockholders to be held on May 7, 1997.
 
        (h) Incorporated by reference to Metrocall's Proxy Statement filed for
            the Annual Meeting of Stockholders to be held on May 1, 1996.
 
        (i) Incorporated by reference to Metrocall's Registration Statement on
            Form S-3, as amended (File No. 333-13123), filed with the Commission
            on October 1, 1996.
 
         +  To be filed by amendment.

<PAGE>   1
                                                                   EXHIBIT 10.1
                       
                            NONCOMPETITION AGREEMENT


This AGREEMENT is made and entered into as of August 8, 1997, by and between
METROCALL, INC., a Delaware corporation (the "Company"), and Jackie R. Kimzey
(the "Executive").

                              STATEMENT OF PURPOSE

         The Executive is Chairman of the Board and Chief Executive Officer of
ProNet Inc. ("ProNet").  The Executive will terminate his employment with ProNet
as of the Effective Time ("Effective Time") of the Agreement and Plan of Merger
of even date herewith ("Merger Agreement") by and between ProNet and the 
Company.  The Executive will agree not to compete with the Company (which term
as used herein will be deemed to include ProNet as a result of the merger) for
the term described herein.

                                   AGREEMENT

NOW THEREFORE, in consideration of the mutual covenants and agreements contained
herein and other good and valuable consideration, the Company and the Executive
hereby agree as follows:

1.       ACKNOWLEDGMENTS.  The Executive acknowledges that ProNet's and the
         Company's business and services are highly specialized, that the
         identity and particular needs of their customers and suppliers are not
         generally known, that the documents and information regarding their
         customers, suppliers, services, methods of operation, sales, pricing,
         and costs are highly confidential and constitute trade secrets, and
         that ProNet's and the Company's products and services are marketed
         throughout the United States.  The Executive further acknowledges that
         the services he has rendered to ProNet have been of a special and
         unusual character that have a unique value to ProNet, and that the
         Executive has had access to trade secrets and confidential information
         belonging to ProNet, the loss of which cannot adequately be compensated
         by damages in an action at law.

2.       DATE AND NATURE OF TERMINATION.  Pursuant to the Executive's Employment
         Agreement dated as of May 18, 1994 ("Employment Agreement") and the 
         letter agreement of even

<PAGE>   2
         date herewith ("Letter Agreement"), the Executive's employment with
         ProNet and its subsidiaries shall be terminated as of the Effective
         Time (the "Termination Date"), and the Executive hereby tenders his
         resignation from all positions he now has with ProNet, including as an
         officer, director, or member of any advisory boards or committees, all
         such resignations to be effective as of the Termination Date.  This
         Agreement is contingent on and subject to the Closing under the Merger
         Agreement, and neither party shall be bound by it, nor shall it have
         any force and effect, unless and until the Closing occurs.

3.       PAYMENT FOR NONCOMPETITION.  Subject to the Executive's full compliance
         with the terms of this Agreement, including the conditions set forth
         below, the Company shall pay to the Executive 78 bi-weekly payments of
         $5407.70 each, beginning on the first regularly scheduled pay day for
         the Company's senior executive personnel occurring after the,  payable
         in accordance with the Company's payroll processing system.  All 
         amounts paid under this paragraph 3 shall be subject to and reduced by
         applicable federal and state withholding taxes, if any.

4.       BENEFIT PLANS AND BENEFITS.  Except as required by Section 4980B of the
         Internal Revenue Code ("COBRA") or the Letter Agreement, as of the
         Termination Date, the Executive shall not have the right to participate
         in or receive any benefit under any employee benefit plan of ProNet,
         the Company, or any of their affiliates, any fringe benefit plan of the
         Company or ProNet, or any other plan, policy, or arrangement of the
         Company or ProNet providing benefits or perquisites to employees of the
         Company or ProNet generally or individually.
         
5.       NONCOMPETITION. From the Termination Date until the third anniversary
         of the Termination Date, the Executive will not, directly or 
         indirectly:

         (a)     serve as or be a consultant to or employee, officer, agent,
                 director, or owner of more than five percent of another
                 corporation, partnership, or other entity whose principal
                 business is providing narrow band one-way or two-way paging
                 services anywhere within the United States;

         (b)     solicit for employment or endeavor in any way to entice away
                 from employment with the Company or its affiliates, or in any
                 way interfere with the relationship




                                     -2-
<PAGE>   3
                 between the Company or its affiliates and any employee of the
                 Company or its affiliates; or

         (c)     induce or attempt to induce any customer, supplier, licensee or
                 business relation of the Company to cease doing business with
                 the Company, or in any way interfere with the Company's
                 relationship with any customer or business relation of the
                 Company.

6.       DISCLOSURE OF CONFIDENTIAL INFORMATION.  Except as may be required by
         the lawful order of a court or agency of competent jurisdiction, the
         Executive agrees to keep secret and confidential indefinitely all
         non-public information concerning ProNet or its affiliates that was
         acquired by or disclosed to the Executive during the course of his
         employment by ProNet or any of its affiliates or predecessors,
         including information relating to customers (including, without
         limitation, credit history, repayment history, financial information,
         and financial statements), costs and operations, financial data and
         plans, whether past, current or planned, and not to disclose the same,
         either directly or indirectly, to any other person, firm, or business
         entity, or to use it in any way; provided, however, that the provisions
         of this paragraph 6 shall not apply to information that is in the
         public domain or that was disclosed to the Executive by independent
         third parties who were not bound by an obligation of confidentiality. 
         The Executive further agrees that, for twelve months from the 
         Termination Date, he will not make any statement or disclosure or
         express any opinion or interpretation regarding ProNet or the Company
         or their financial condition or operations that is intended to be
         detrimental to the Company or any of its subsidiaries or affiliates.

7.       REMEDIES.  The Executive hereby acknowledges that the remedies at law
         for any breach of the covenants and obligations contained in this
         Agreement will be inadequate and that, in the event of a breach or a
         threatened breach of any of the provisions of this Agreement, the
         Company shall be entitled to preliminary restraining orders, 
         injunctions, or such equitable remedies as may be appropriate, in
         addition to all other remedies available to the Company.  In addition,
         the Executive agrees that a breach by him of any of the covenants and
         agreements contained herein shall be deemed a breach of all such 
         covenants and agreements and shall entitle the Company, among other
         things, to cease payments under paragraph 3 hereof, provided, that the
         Company may not cease payments under this




                                       -3-
<PAGE>   4
         paragraph 7 unless it has first given written notice to the Executive
         that the Company considers the Executive to be in breach, and the
         Executive shall not have cured such breach within 10 days after
         delivery of such notice, and, provided further, that any payments that
         the Company withholds pursuant to this paragraph 7 shall be deposited
         in escrow pending resolution of any dispute regarding whether the
         Executive has breached his covenants or obligations under this
         Agreement.  In the event that the Company breaches its obligations
         under this Agreement, the Executive shall be released from his
         obligations hereunder,  provided, that the Executive shall not be so
         released under this paragraph 7 unless he has first given written
         notice to the Company that the Executive considers the Company to be in
         breach, and the Company shall not have cured such breach within 10 days
         after delivery of such notice

         Should a court of competent jurisdiction determine that the character,
         duration, or geographical scope of any provision of this Agreement is
         unreasonable in light of the circumstances as they then exist, then the
         Company and the Executive intend and agree that the court shall 
         construe this Agreement in such a manner as to impose only those
         restrictions on the conduct of the Executive that are reasonable in
         light of the circumstances as they then exist and as are necessary to
         assure the Company of the intended benefit of this Agreement.  If, in
         any judicial proceeding, a court shall refuse to enforce all of the
         separate covenants deemed included herein because, taken together, they
         are more extensive than necessary to assure the Company of the 
         intended benefit of this Agreement, then it is expressly understood and
         agreed by the Company and the Executive that those covenants that, if
         eliminated, would permit the remaining separate covenants to be 
         enforced in such proceeding, shall, for the purpose of such proceeding,
         be deemed eliminated from the provision hereof.

8.       GOVERNING LAW.  This Agreement shall be construed in accordance with
         and governed by the internal laws of Delaware, without giving effect to
         any conflicts of law provisions.

9.       BINDING EFFECT.  This Agreement shall bind and inure to the benefit of
         ProNet, the Company, its successors and assigns, and the Executive and
         his heirs and legal representatives.  The Executive may not assign this
         Agreement and the rights hereunder, except that Executive may assign 
         any payments to which he is entitled under paragraph 3.




                                     -4-
<PAGE>   5
10.      VOLUNTARY AGREEMENT; REASONABLENESS.  The Executive hereby represents
         that he has carefully read and completely understands the provisions
         of this Agreement and that he has entered into this Agreement
         voluntarily.  The Executive has carefully considered the provisions
         hereof and consulted with counsel of his own choosing, and, having done
         so, agrees that the restrictions set forth in paragraphs 5 and 6 hereof
         (including, but not limited to, the time periods of restriction in each
         such paragraphs and the geographical area of restriction set forth in
         paragraph 5 hereof) are fair and reasonable and are reasonably required
         for the protection of the interests of the Company. 

11.      SEPARATE COVENANTS.    This Agreement shall be deemed to consist of a
         series of separate covenants.

12.      LITIGATION ASSISTANCE.  The Executive agrees to cooperate with and
         provide assistance to the Company and its legal counsel in connection
         with any litigation (including arbitration or administrative hearings)
         or investigation relating to the operation of ProNet's business prior
         to the Effective Time, in which, in the reasonable judgment of the 
         Company's counsel, the Executive's assistance or cooperation is needed
         due to his personal involvement in or knowledge about the circumstances
         to which the litigation or investigation relates.  The Executive shall,
         when the Company requests, provide testimony or other assistance and
         shall travel at the Company's request in order to fulfill this
         obligation.  In connection with such litigation or investigation, the
         Company shall use its best efforts to accommodate the Executive's
         schedule, shall provide him with as much notice as possible in advance
         of the times during which his cooperation or assistance is needed (but
         in no event less than 10 days prior notice), and shall reimburse the
         Executive for any reasonable expenses incurred in connection with such
         matters.  In no event whatsoever shall the Executive's obligations
         under this paragraph 12 require him to take any action that would
         adversely affect his ability to engage in any and all business         
         activities in which the Executive may be involved or to spend more than
         15 hours during any one month period performing such obligations.

13.      ENTIRE AGREEMENT.  This Agreement contains the entire agreement between
         the Company and the Executive and supersedes all prior agreements 
         relating to the subject matter hereof, and may be changed only by a 
         writing signed by the parties hereto.  Any and all prior 
         representations, statements, and discussions regarding the subject
         matter of this Agreement

         


                                     -5-
<PAGE>   6
         have been merged into and/or replaced by the terms of this Agreement.
         This Agreement does not affect the Executive's rights under his
         Employment Agreement and the Letter Agreement.

         IN WITNESS WHEREOF, the parties hereto have duly executed this 
Agreement, or caused this Agreement to be duly executed by their authorized
representatives, under seal and with the intent that this Agreement shall
constitute a sealed instrument, as of the day and year first above written.


                                        METROCALL, INC.
                                     
                                     
Date:                                   By:
     --------------------------            ----------------------------------
                                     
                                     
                                     
                                     
Date:                                   By:
     --------------------------            ----------------------------------
                                           Jackie R. Kimzey
                                     



                                     -6-

<PAGE>   1
                                                                   EXHIBIT 10.2

                            NONCOMPETITION AGREEMENT


This AGREEMENT is made and entered into as of August 8, 1997, by and between
METROCALL, INC., a Delaware corporation (the "Company"), and David J. Vucina
(the "Executive").

                              STATEMENT OF PURPOSE

         The Executive is President of ProNet Inc. ("ProNet").  The Executive
will terminate his employment with ProNet as of the Effective Time ("Effective
Time") of the Agreement and Plan of Merger of even date herewith ("Merger
Agreement") by and between ProNet and the Company.  The Executive will agree
not to compete with the Company (which term as used herein will be deemed to
include ProNet as a result of the merger) for the term described herein.

                                   AGREEMENT

NOW THEREFORE, in consideration of the mutual covenants and agreements contained
herein and other good and valuable consideration, the Company and the Executive
hereby agree as follows:

1.       ACKNOWLEDGMENTS.  The Executive acknowledges that ProNet's and the
         Company's business and services are highly specialized, that the
         identity and particular needs of their customers and suppliers are not
         generally known, that the documents and information regarding their
         customers, suppliers, services, methods of operation, sales, pricing,
         and costs are highly confidential and constitute trade secrets, and
         that ProNet's and the Company's products and services are marketed
         throughout the United States.  The Executive further acknowledges that
         the services he has rendered to ProNet have been of a special and
         unusual character that have a unique value to ProNet, and that the
         Executive has had access to trade secrets and confidential information
         belonging to ProNet, the loss of which cannot adequately be compensated
         by damages in an action at law.

2.       DATE AND NATURE OF TERMINATION.  Pursuant to the Executive's Employment
         Agreement dated as of May 18, 1994 ("Employment Agreement") and the
         letter agreement of even date herewith ("Letter Agreement"), the
         Executive's employment with ProNet and its

<PAGE>   2
         subsidiaries shall be terminated as of the Effective Time (the
         "Termination Date"), and the Executive hereby tenders his resignation
         from all positions he now has with ProNet, including as an officer,
         director, or member of any advisory boards or committees, all such
         resignations to be effective as of the Termination Date.  This
         Agreement is contingent on and subject to the Closing under the Merger
         Agreement, and neither party shall be bound by it, nor shall it have
         any force and effect, unless and until the Closing occurs.

3.       PAYMENT FOR NONCOMPETITION.  Subject to the Executive's full compliance
         with the terms of this Agreement, including the conditions set forth
         below, the Company shall pay to the Executive 78 bi-weekly payments of
         $4069.23 each, beginning on the first regularly scheduled pay day for
         the Company's senior executive personnel occurring after the,  payable
         in accordance with the Company's payroll processing system.  All
         amounts paid under this paragraph 3 shall be subject to and reduced by
         applicable federal and state withholding taxes, if any.
         
4.       BENEFIT PLANS AND BENEFITS.  Except as required by Section 4980B of the
         Internal Revenue Code ("COBRA") or the Letter Agreement, as of the
         Termination Date, the Executive shall not have the right to participate
         in or receive any benefit under any employee benefit plan of ProNet,
         the Company, or any of their affiliates, any fringe benefit plan of the
         Company or ProNet, or any other plan, policy, or arrangement of the
         Company or ProNet providing benefits or perquisites to employees of the
         Company or ProNet generally or individually.
         
5.       NONCOMPETITION. From the Termination Date until the third anniversary
         of the Termination Date, the Executive will not, directly or 
         indirectly:

         (a)     serve as or be a consultant to or employee, officer, agent,
                 director, or owner of more than five percent of another
                 corporation, partnership, or other entity whose principal
                 business is providing narrow band one-way or two-way paging
                 services anywhere within the United States;

         (b)     solicit for employment or endeavor in any way to entice away
                 from employment with the Company or its affiliates, or in any
                 way interfere with the relationship




                                     -2-
<PAGE>   3
                 between the Company or its affiliates and any employee of the
                 Company or its affiliates; or

         (c)     induce or attempt to induce any customer, supplier, licensee
                 or business relation of the Company to cease doing business
                 with the Company, or in any way interfere with the Company's
                 relationship with any customer or business relation of the
                 Company.

6.       DISCLOSURE OF CONFIDENTIAL INFORMATION.  Except as may be required by
         the lawful order of a court or agency of competent jurisdiction, the
         Executive agrees to keep secret and confidential indefinitely all
         non-public information concerning ProNet or its affiliates that was
         acquired by or disclosed to the Executive during the course of his
         employment by ProNet or any of its affiliates or predecessors,
         including information relating to customers (including, without
         limitation, credit history, repayment history, financial information,
         and financial statements), costs and operations, financial data and
         plans, whether past, current or planned, and not to disclose the same,
         either directly or indirectly, to any other person, firm, or business
         entity, or to use it in any way; provided, however, that the provisions
         of this paragraph 6 shall not apply to information that is in the 
         public domain or that was disclosed to the Executive by independent
         third parties who were not bound by an obligation of confidentiality. 
         The Executive further agrees that, for twelve months from the
         Termination Date, he will not make any statement or disclosure or
         express any opinion or interpretation regarding ProNet or the Company
         or their financial condition or operations that is intended to be
         detrimental to the Company or any of its subsidiaries or affiliates.

7.       REMEDIES.  The Executive hereby acknowledges that the remedies at law
         for any breach of the covenants and obligations contained in this
         Agreement will be inadequate and that, in the event of a breach or a
         threatened breach of any of the provisions of this Agreement, the
         Company shall be entitled to preliminary restraining orders,
         injunctions, or such equitable remedies as may be appropriate, in
         addition to all other remedies available to the Company.  In addition,
         the Executive agrees that a breach by him of any of the covenants and
         agreements contained herein shall be deemed a breach of all such
         covenants and agreements and shall entitle the Company, among other
         things, to cease payments under paragraph 3 hereof, provided, that the
         Company may not cease payments under this




                                     -3-
<PAGE>   4
         paragraph 7 unless it has first given written notice to the Executive
         that the Company considers the Executive to be in breach, and the
         Executive shall not have cured such breach within 10 days after
         delivery of such notice, and, provided further, that any payments that
         the Company withholds pursuant to this paragraph 7 shall be deposited
         in escrow pending resolution of any dispute regarding whether the
         Executive has breached his covenants or obligations under this 
         Agreement.  In the event that the Company breaches its obligations
         under this Agreement, the Executive shall be released from his
         obligations hereunder,  provided, that the Executive shall not be so
         released under this paragraph 7 unless he has first given written
         notice to the Company that the Executive considers the Company to be
         in breach, and the Company shall not have cured such breach within 10
         days after delivery of such notice

         Should a court of competent jurisdiction determine that the character,
         duration, or geographical scope of any provision of this Agreement is
         unreasonable in light of the circumstances as they then exist, then
         the Company and the Executive intend and agree that the court shall
         construe this Agreement in such a manner as to impose only those
         restrictions on the conduct of the Executive that are reasonable in
         light of the circumstances as they then exist and as are necessary to
         assure the Company of the intended benefit of this Agreement.  If, in
         any judicial proceeding, a court shall refuse to enforce all of the
         separate covenants deemed included herein because, taken together, they
         are more extensive than necessary to assure the Company of the intended
         benefit of this Agreement, then it is expressly understood and agreed
         by the Company and the Executive that those covenants that, if
         eliminated, would permit the remaining separate covenants to be
         enforced in such proceeding, shall, for the purpose of such
         proceeding, be deemed eliminated from the provision hereof.
         
8.       GOVERNING LAW.  This Agreement shall be construed in accordance with
         and governed by the internal laws of Delaware, without giving effect
         to any conflicts of law provisions.

9.       BINDING EFFECT.  This Agreement shall bind and inure to the benefit of
         ProNet, the Company, its successors and assigns, and the Executive and
         his heirs and legal representatives.  The Executive may not assign
         this Agreement and the rights hereunder, except that Executive may
         assign any payments to which he is entitled under paragraph 3.




                                     -4-
<PAGE>   5
10.      VOLUNTARY AGREEMENT; REASONABLENESS.  The Executive hereby represents
         that he has carefully read and completely understands the provisions
         of this Agreement and that he has entered into this Agreement
         voluntarily.  The Executive has carefully considered the provisions
         hereof and consulted with counsel of his own choosing, and, having
         done so, agrees that the restrictions set forth in paragraphs 5 and 6
         hereof (including, but not limited to, the time periods of restriction
         in each such paragraphs and the geographical area of restriction set
         forth in paragraph 5 hereof) are fair and reasonable and are reasonably
         required for the protection of the interests of the Company.

11.      SEPARATE COVENANTS.    This Agreement shall be deemed to consist of a
         series of separate covenants.

12.      LITIGATION ASSISTANCE.  The Executive agrees to cooperate with and
         provide assistance to the Company and its legal counsel in connection
         with any litigation (including arbitration or administrative hearings)
         or investigation relating to the operation of ProNet's business prior
         to the Effective Time, in which, in the reasonable judgment of the
         Company's counsel, the Executive's assistance or cooperation is needed
         due to his personal involvement in or knowledge about the circumstances
         to which the litigation or investigation relates.  The Executive shall,
         when the Company requests, provide testimony or other assistance and
         shall travel at the Company's request in order to fulfill this
         obligation.  In connection with such litigation or investigation, the
         Company shall use its best efforts to accommodate the Executive's
         schedule, shall provide him with as much notice as possible in advance
         of the times during which his cooperation or assistance is needed (but
         in no event less than 10 days prior notice), and shall reimburse the
         Executive for any reasonable expenses incurred in connection with such
         matters.  In no event whatsoever shall the Executive's obligations
         under this paragraph 12 require him to take any action that would
         adversely affect his ability to engage in any and all business
         activities in which the Executive may be involved or to spend more
         than 15 hours during any one month period performing such obligations.

13.      ENTIRE AGREEMENT.  This Agreement contains the entire agreement
         between the Company and the Executive and supersedes all prior
         agreements relating to the subject matter hereof, and may be changed
         only by a writing signed by the parties hereto.  Any and all prior
         representations, statements, and discussions regarding the subject
         matter of this Agreement




                                     -5-
<PAGE>   6
         have been merged into and/or replaced by the terms of this Agreement.
         This Agreement does not affect the Executive's rights under his
         Employment Agreement and the Letter Agreement.

         IN WITNESS WHEREOF, the parties hereto have duly executed this
Agreement, or caused this Agreement to be duly executed by their authorized
representatives, under seal and with the intent that this Agreement shall
constitute a sealed instrument, as of the day and year first above written.

                                         METROCALL, INC.

Date:  ------------------------          By:  -----------------------------
                                     
                                     
                                     
                                     
                                     
Date:  ------------------------          By:  -----------------------------
                                              David J. Vucina




                                     -6-

<PAGE>   1
                                                                   EXHIBIT 10.3



                                August __, 1997


Mr. Jackie R. Kimzey
ProNet Inc.
6340 LBJ Freeway
Dallas, Texas 75240

Dear Jackie:

         This letter sets forth the agreement between you ("Executive") and
Metrocall, Inc. (the "Company") with respect to your rights under Section 8 of
your Employment Agreement ("Employment Agreement") with ProNet Inc. ("ProNet")
dated May 18, 1994, upon the Effective Time of the Merger of ProNet with and
into the Company pursuant to an Agreement and Plan of Merger between ProNet and
the Company of even date herewith.

         1.       The Executive's employment with ProNet and its subsidiaries
will be terminated as of Effective Time of the Merger (the "Termination Date"),
and the Executive hereby tenders his resignation from all positions he now has
with ProNet, including as an officer, director, or member of any advisory boards
or committees, all such resignations to be effective as of the Termination Date.
This Agreement is contingent on and subject to the Closing under the Merger 
Agreement, and neither party shall be bound by it, nor shall it have any force
and effect, unless and until the Closing occurs.

         2.      On or before the fifth day after the Termination Date, the
Company will pay to Executive the sum of $750,000 in cash in full satisfaction
of all obligations under Section 8(a) of the Employment Agreement.  The
consideration to be paid to the Executive pursuant to this paragraph shall be in
full payment and in lieu of any and all of the Executive's benefits or
perquisites accrued but unpaid as of the Termination Date, including without
limitation salary, bonuses, vacation, sick leave, etc., and Executive's right to
receive payments under paragraph 8(a)(ii)(A) and benefits under paragraph
8(a)(ii)(B) of the Employment Agreement.  Notwithstanding the foregoing, (i) the
Executive's split-dollar life insurance policy will be conveyed to him pursuant 
to Section 4(f) of the Employment Agreement, and (ii) the Executive may elect 
the payment of benefits to which he is entitled under any 401(k) plan of ProNet
as provided under the terms of any such plan.
<PAGE>   2
Mr. Jackie R. Kimzey
August ___, 1997
Page 2


         If the foregoing correctly sets forth our agreement, please execute
this letter in the space indicated below and return it to the Company.

                                    Sincerely,

                                    METROCALL, INC.


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


Accepted and Agreed:


- --------------------------
Jackie R. Kimzey


<PAGE>   1
                                                                   EXHIBIT 10.4



                                 August 8, 1997

Mr. David J. Vucina
ProNet Inc.
6340 LBJ Freeway
Dallas, Texas 75240

Dear David:

         This letter sets forth the agreement between you ("Executive") and
Metrocall, Inc. (the "Company") with respect to your rights under Section 8 of
your Employment Agreement ("Employment Agreement") with ProNet Inc. ("ProNet")
dated May 18, 1994, upon the Effective Time of the Merger of ProNet with and
into the Company pursuant to an Agreement and Plan of Merger between ProNet and
the Company of even date herewith ("Merger Agreement").

         1.       The Executive's employment with ProNet and its subsidiaries
will be terminated as of Effective Time of the Merger (the "Termination Date"),
and the Executive hereby tenders his resignation from all positions he now has
with ProNet, including as an officer, director, or member of any advisory boards
or committees, all such resignations to be effective as of the Termination Date.
This Agreement is contingent on and subject to the Closing under the Merger 
Agreement, and neither party shall be bound by it, nor shall it have any force
and effect, unless and until the Closing occurs.

         2.      On or before the fifth day after the Termination Date, the
Company will pay to Executive the sum of $700,000 in cash in full satisfaction
of all obligations under Section 8(a) of the Employment Agreement.  The
consideration to be paid to the Executive pursuant to this paragraph shall be
in full payment and in lieu of any and all of the Executive's benefits or
perquisites accrued but unpaid as of the Termination Date, including without
limitation salary, bonuses, vacation, sick leave, etc., and Executive's right to
receive payments under paragraph 8(a)(ii)(A) and benefits under paragraph
8(a)(ii)(B) of the Employment Agreement.  Notwithstanding the foregoing, (i) the
Executive's split-dollar life insurance policy will be conveyed to him pursuant
to Section 4(f) of the Employment Agreement, and (ii) the Executive may elect 
the payment of benefits to which he is entitled under any 401(k) plan of ProNet 
as provided under the terms of any such plan.  The foregoing shall not affect 
the payment of compensation prior to the Effective Time of the Merger as 
permitted by the Merger Agreement.

         3.      The Company shall indemnify and hold Executive harmless in the
event that it is asserted that any payment to Executive pursuant to this Letter
Agreement or any other payment by the Company to Executive is subject to the
excise tax imposed by Section 4999 of the Internal Revenue Code or any 
comparable federal, state, or local excise tax (such excise tax,

<PAGE>   2
Mr. David J. Vucina
August 8, 1997
Page 2


together with any interest and penalties, are hereinafter collectively referred
to as the "Excise Tax"), including paying to the Executive an additional amount
such that the net amount the Executive retains, after deduction of the Excise
Tax on such payments and any federal, state, and local income tax and Excise
Tax upon the payment provided for by this Section and any interest, penalties,
or additions to tax payable by the Executive with respect thereto shall be equal
to the total present value of the such payments at the time such payments are 
made.  Executive and the Company agree to cooperate in contesting any assertion
that an Excise Tax is payable.

         If the foregoing correctly sets forth our agreement, please execute
this letter in the space indicated below and return it to the Company.

                                    Sincerely,

                                    METROCALL, INC.


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


Accepted and Agreed:


- -----------------------------
David J. Vucina


<PAGE>   1
                                                                   EXHIBIT 10.5



                                 August 8, 1997

Ms. Jan E. Gaulding
ProNet Inc.
6340 LBJ Freeway
Dallas, Texas 75240

Dear Jan:

         This letter sets forth the agreement between you ("Executive") and
Metrocall, Inc. (the "Company") with respect to your rights under Section 1 of
your Change in Control Agreement ("Agreement") with ProNet Inc. ("ProNet") dated
January 17, 1995, upon the Effective Time of the Merger of ProNet with and into
the Company pursuant to an Agreement and Plan of Merger between ProNet and the
Company of even date herewith ("Merger Agreement").

         1.       The Executive's employment with ProNet and its subsidiaries
will be terminated as of Effective Time of the Merger (the "Termination Date"),
and the Executive hereby tenders her resignation from all positions she now has
with ProNet, including as an officer, director, or member of any advisory boards
or committees, all such resignations to be effective as of the Termination Date.
This Agreement is contingent on and subject to the Closing under the Merger 
Agreement, and neither party shall be bound by it, nor shall it have any force 
and effect, unless and until the Closing occurs.

         2.      On or before the fifth day after the Termination Date, the
Company will pay to Executive the sum of $228,988 in cash in full satisfaction
of all obligations under Section 1(a) of the Agreement.  The consideration to be
paid to the Executive pursuant to this paragraph shall be in full payment and 
in lieu of any and all of the Executive's benefits or perquisites accrued but 
unpaid as of the Termination Date, including without limitation salary, bonuses,
sick leave, etc., and Executive's right to receive payments under paragraph 
1(a)(A) and benefits under paragraph 1(a)(B) of the Agreement.  Notwithstanding
the foregoing, (i) the Executive's split-dollar life insurance policy will be 
conveyed to her without any repayment obligation, (ii) the Executive may elect 
the payment of benefits to which he is entitled under any 401(k) plan of ProNet 
as provided under the terms of any such plan; and (iii) the Executive shall be
paid for all accrued and unpaid vacation as of the Termination Date.  The 
foregoing shall not affect the payment of compensation prior to the Effective 
Time of the Merger as permitted by the Merger Agreement.

<PAGE>   2
Ms. Jan E. Gaulding
August 8, 1997
Page 2


         If the foregoing correctly sets forth our agreement, please execute
this letter in the space indicated below and return it to the Company.

                                    Sincerely,

                                    METROCALL, INC.


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

Accepted and Agreed:


- ----------------------------
Jan E. Gaulding


<PAGE>   1
                                                                   EXHIBIT 10.6



                                 August 8, 1997

Mr. Mark A. Solls
ProNet Inc.
6340 LBJ Freeway
Dallas, Texas 75240

Dear Mark:

         This letter sets forth the agreement between you ("Executive") and
Metrocall, Inc. (the "Company") with respect to your rights under Section 1 of
your Change in Control Agreement ("Agreement") with ProNet Inc. ("ProNet") dated
January 17, 1995, upon the Effective Time of the Merger of ProNet with and into
the Company pursuant to an Agreement and Plan of Merger between ProNet and the
Company of even date herewith ("Merger Agreement").

         1.       The Executive's employment with ProNet and its subsidiaries
will be terminated as of Effective Time of the Merger (the "Termination Date"),
and the Executive hereby tenders his resignation from all positions he now has
with ProNet, including as an officer, director, or member of any advisory boards
or committees, all such resignations to be effective as of the Termination Date.
This Agreement is contingent on and subject to the Closing under the Merger 
Agreement, and neither party shall be bound by it, nor shall it have any force
and effect, unless and until the Closing occurs.

         2.      On or before the fifth day after the Termination Date, the
Company will pay to Executive the sum of $227,588 in cash in full satisfaction
of all obligations under Section 1(a) of the Agreement.  The consideration to be
paid to the Executive pursuant to this paragraph shall be in full payment and
in lieu of any and all of the Executive's benefits or perquisites accrued but
unpaid as of the Termination Date, including without limitation salary, bonuses,
sick leave, etc., and Executive's right to receive payments under paragraph 
1(a)(A) and benefits under paragraph 1(a)(B) of the Agreement.  Notwithstanding
the foregoing, (i) the Executive's split-dollar life insurance policy will be 
conveyed to him without any repayment obligation, (ii) the Executive may elect
the payment of benefits to which he is entitled under any 401(k) plan of ProNet 
as provided under the terms of any such plan; and (iii) the Executive shall be
paid for all accrued and unpaid vacation as of  the Termination Date.  The 
foregoing shall not affect the payment of compensation prior to the Effective 
Time of the Merger as permitted by the Merger Agreement.

<PAGE>   2
Mr. Mark A. Solls
August 8, 1997
Page 2


         If the foregoing correctly sets forth our agreement, please execute
this letter in the space indicated below and return it to the Company.

                                    Sincerely,

                                    METROCALL, INC.


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

Accepted and Agreed:


- --------------------------
Mark A. Solls


<PAGE>   1
                                                                    EXHIBIT 10.7



                                 August 8, 1997
                                 
Mr. Jeffery A. Owens
ProNet Inc.
6340 LBJ Freeway
Dallas, Texas 75240

Dear Jeff:

         This letter sets forth the agreement between you ("Executive") and
Metrocall, Inc. (the "Company") with respect to your rights under Section 1 of
your Change in Control Agreement ("Agreement") with ProNet Inc. ("ProNet")
dated January 17, 1995, upon the Effective Time of the Merger of ProNet with
and into the Company pursuant to an Agreement and Plan of Merger between ProNet
and the Company of even date herewith ("Merger Agreement").

         1.       The Executive's employment with ProNet and its subsidiaries
will be terminated as of Effective Time of the Merger (the "Termination Date"),
and the Executive hereby tenders his resignation from all positions he now has
with ProNet, including as an officer, director, or member of any advisory
boards or committees, all such resignations to be effective as of the
Termination Date.  This Agreement is contingent on and subject to the Closing
under the Merger Agreement, and neither party shall be bound by it, nor shall
it have any force and effect, unless and until the Closing occurs.

         2.      On or before the fifth day after the Termination Date, the
Company will pay to Executive the sum of $201,043 in cash in full satisfaction
of all obligations under Section 1(a) of the Agreement.  The consideration to
be paid to the Executive pursuant to this paragraph shall be in full payment
and in lieu of any and all of the Executive's benefits or perquisites accrued
but unpaid as of the Termination Date, including without limitation salary,
bonuses, sick leave, etc., and Executive's right to receive payments under
paragraph 1(a)(A) and benefits under paragraph 1(a)(B) of the Agreement.
Notwithstanding the foregoing, (i) the Executive's split-dollar life insurance
policy will be conveyed to him without any repayment obligation, (ii) the
Executive may elect the payment of benefits to which he is entitled under any
401(k) plan of ProNet as provided under the terms of any such plan; and (iii)
the Executive shall be paid for all accrued and unpaid vacation as of  the
Termination Date.  The foregoing shall not affect the payment of compensation
prior to the Effective Time of the Merger as permitted by the Merger Agreement.
<PAGE>   2
Mr. Jeffery A. Owens
August 8, 1997
Page 2                                 



         If the foregoing correctly sets forth our agreement, please execute
this letter in the space indicated below and return it to the Company.
                                        
                                        Sincerely,
                                        
                                        METROCALL, INC.
                                        
                                        
                                        By: 
                                           ------------------------------------ 
                                              Name:
                                              Title:

Accepted and Agreed:


- --------------------------
Jeffery A. Owens

<PAGE>   1
                                                                   EXHIBIT 10.13




             FIRST AMENDMENT TO AMENDED AND RESTATED LOAN AGREEMENT


         THIS FIRST AMENDMENT TO AMENDED AND RESTATED LOAN AGREEMENT (the
"Amendment") is made as of this 30th day of April, 1997 by and among Metrocall,
Inc., a Delaware corporation (the "Borrower"); The Toronto-Dominion Bank,
BankBoston, N.A. (formerly known as The First National Bank of Boston), First
Union National Bank of North Carolina, Fleet National Bank, Royal Bank of
Canada, PNC Bank, National Association, NationsBank of Texas, N.A., Riggs Bank
N.A.  and SunTrust Bank, Central Florida, N.A. and Van Kampen American Capital
Prime Rate Income Trust (collectively, the "Banks") and Toronto Dominion
(Texas), Inc., as administrative agent for the Banks (the "Administrative
Agent"),

                            W I T N E S S E T H:

         WHEREAS, the Borrower; the Banks; The Toronto-Dominion Bank, as
documentation agent (in such capacity, the "Documentation Agent"); BankBoston,
N.A. (formerly known as The First National Bank of Boston), as syndication
agent (in such capacity, the "Syndication Agent"); The Toronto-Dominion Bank
and BankBoston, N.A. (formerly known as The First National Bank of Boston), as
managing agents (in such capacity, the "Managing Agents"); and the
Administrative Agent are parties to that certain Amended and Restated Loan
Agreement dated as of September 20, 1996 (the "Loan Agreement"); and

         WHEREAS, AAA Answering Services, Inc., AAA Answering Service of
Jackson, Inc., AAA Answering Service of Birmingham, Inc., Exchange Answering
Service of Louisville, Inc. and Exchange Answering Service of Memphis, Inc. are
each wholly-owned Subsidiaries of the Borrower (collectively, the "TMS
Subsidiaries"); and

         WHEREAS, the Borrower desires to dispose of all of the former A+
Network telemessaging service assets and to cause the TMS Subsidiaries to
dispose of all of their assets pursuant to that certain Asset Purchase
Agreement (the "TMS Asset Purchase Agreement") dated as of April 8, 1997 (the
"TMS Asset Disposition") and thereafter to liquidate the TMS Subsidiaries; and




                                     -1-
<PAGE>   2
         WHEREAS, the Borrower has requested, and the Administrative Agent and
the Banks have agreed, subject to the terms hereof, to consent to the
transactions described above and to amend the Loan Agreement as provided
herein;

         NOW, THEREFORE, for and in consideration of the mutual covenants and
agreements contained herein, and for other good and valuable consideration, the
receipt and sufficiency of which is acknowledged, the parties agree that all
capitalized terms used herein which are not otherwise defined herein shall have
the meanings ascribed thereto in the Loan Agreement, and further agree as
follows:





                                      -2-
<PAGE>   3
         1.      Amendments to Article 1.

                 (a)      Article 1 of the Loan Agreement, Definitions, is
hereby amended by deleting the table and the final sentence immediately
preceding the table in the definition of "Commitment Ratio" and substituting
the following in lieu thereof:

         "As of April 30, 1997, the Commitment Ratios of the Banks party to
this Agreement are as follows:

<TABLE>
<CAPTION>
                                                  Percent of                        Percent of                             Percent
                             Facility A           Facility A       Facility B       Facility B          Total             of Total
         Banks               Commitment           Commitment       Commitment       Commitment        Commitment        Commitment
<S>                      <C>                    <C>             <C>                <C>             <C>                <C>
The Toronto-Dominion     $   38,999,625.10      17.333166712%   $  21,666,458.40   17.333166720%   $ 60,666,083.50   17.333166714%
Bank                                                           
                                                               
BankBoston, N.A.         $   38,999,625.11      17.333166715%   $  21,666,458.39   17.333166712%   $ 60,666,083.50   17.333166714%
(formerly known as                                             
The First National                                             
Bank of Boston)                                                
                                                               
First Union National     $   22,285,901.73       9.904845213%     12,381,056.52    9.904845216%   $ 34,666,958.25     9.904845215%
Bank of North                                                  
Carolina                                                       
                                                               
Fleet National Bank      $   22,285,901.73       9.904845213%     12,381,056.52    9.904845216%   $ 34,666,958.25     9.904845215%
                                                                                                                                  
Royal Bank of Canada     $   22,285,901.73       9.904845213%     12,381,056.52    9.904845216%   $ 34,666,958.25     9.904845215%
                                                                                                                                  
                                                               
PNC Bank, National       $   16,071,428.57       7.142857142%     $8,928,571.43    7.142857142%   $ 25,000,000.00     7.142857142%
Association                                                    
                                                               
NationsBank of Texas,    $   22,285,901.73       9.904845213%     12,381,056.52    9.904845216%   $ 34,666,958.25     9.904845215%
                                                                                                                                  
N.A.                                                           
                                                               
Riggs Bank N.A.          $    9,642,857.15       4.285714285%     $5,357,142.85    4.285714285%   $ 15,000,000.00     4.285714285%
                                                               
SunTrust Bank,           $    9,642,857.15       4.285714285%     $5,357,142.85    4.285714285%   $ 15,000,000.00     4.285714285%
Central Florida,                                               
National Association                                           
                                                               
Van Kampen American      $   22,500,000.00      10.000000000%     12,500,000.00   10.000000000%   $ 35,000,000.00    10.000000000%
Prime Rate Income                                              
Trust                                                          
                                                               
        TOTALS:          $  225,000,000.00            100.00%    125,000,000.00         100.00%   $350,000,000.00         100.00%"
                                                                                                                                  
                                                                  
</TABLE>

                 (b)      Article 1 of the Loan Agreement, Definitions, is
hereby further amended by deleting the definition of "Operating Cash Flow" in
its entirety and by substituting the following therefor:

                 "'Operating Cash Flow' shall mean, with respect to the
         Borrower and the Restricted Subsidiaries on a consolidated basis for
         any fiscal quarter, the sum of (a) Net Income for such quarter (after
         eliminating any extraordinary gains and losses, including





                                      -3-
<PAGE>   4
         gains and losses from the sale of assets, other than sales of pagers
         and other products or services in the ordinary course of business, and
         any deferred tax benefits), plus (b) to the extent deducted in
         determining Net Income, the sum of the following for such period:  (i)
         depreciation and amortization expense, (ii) Interest Expense plus the
         amount of fees paid in respect of Indebtedness for Money Borrowed
         during prior periods but amortized during such period in accordance
         with GAAP, (iii) tax expense, and (iv) other non-cash charges, all as
         determined in accordance with GAAP.  For purposes of determining the
         Senior Leverage Ratio and the Total Leverage Ratio, Operating Cash
         Flow attributable to any Acquisition will be included in the foregoing
         calculation from the first day of the fiscal quarter during which such
         Acquisition occurs to the extent that the calculation of such
         Operating Cash Flow is based on audited financial statements of the
         Person acquired or whose assets are acquired by the Borrower or any of
         the Restricted Subsidiaries, as applicable, or other such financial
         statements which are satisfactory to the Managing Agents and which are
         certified by the chief financial officer of the Borrower to be true,
         complete and correct and prepared in accordance with GAAP, provided
         that for purposes of calculating Operating Cash Flow attributable to
         an Acquisition, the Borrower may make pro forma adjustments acceptable
         to the Managing Agents to reflect reductions in costs of the
         Acquisition effective at or near the time of the Acquisition.
         Notwithstanding the foregoing, for the period from the Agreement Date
         until financial statements for the quarter ending September 30, 1996
         are required to have been delivered pursuant to Section 6.1 hereof,
         Operating Cash Flow shall be calculated for the Borrower and the
         Restricted Subsidiaries on a consolidated basis for the three (3) most
         recent consecutive months for which financial results are available to
         the Borrower."

                 (c)      Article 1 of the Loan Agreement, Definitions, is
hereby further amended by adding thereto the following definition of
"Co-Agents" in the appropriate alphabetical order:

                 "'Co-Agents' shall mean, collectively, First Union National
         Bank of North Carolina, Fleet National Bank, Royal Bank of Canada, PNC
         Bank, National Association and NationsBank of Texas, N.A."

         2.      Amendment to Article 2.  Section 2.7 of the Loan Agreement,
Prepayments and Repayments, is hereby amended by deleting the portion of
subsection (b)(ii), Scheduled Repayments under Facility B Commitment, preceding
the table therein and by substituting the following immediately before the
table in such subsection 2.7(b)(ii):

                 "(ii)    Scheduled Repayments under Facility B Commitment.
         Commencing March 31, 2000, the principal balance then outstanding
         under the Facility B Commitment shall be amortized in quarterly
         installments equal to the percentage of the original principal balance
         outstanding under the Facility B Commitment set forth below on the
         dates set forth below:"

         3.      Amendment to Article 6.  Subsection 6.4 of the Loan Agreement,
Copies of Other Reports, is hereby amended by deleting the existing subsection
(e) in its entirety and by





                                      -4-
<PAGE>   5
substituting the following therefor:

                 "(e)     Prior to January 31 of each year, an annual budget
         for the Borrower and the Restricted Subsidiaries, containing
         information and in a form substantially similar to that shown in the
         budget delivered to the Banks in connection with the execution of this
         Agreement."

         4.      Amendments to Article 7.

                 (a)      Section 7.6 of the Loan Agreement, Investments and
Acquisitions, is hereby amended by (i) removing the word "and" following "7.10"
in subsection (c) thereof, (ii) inserting a comma following "7.10" in such
subsection (c) and (iii) adding "and 7.12" after "7.11" in such subsection (c).
Subsection 7.6(c) is hereby further amended by deleting the "and" at the end of
subsection (c)(iii) and by adding the following new subsection (c)(v) thereto:

                 "(v)     Acquisition of the assets of Radio and Communication
         Consultants, Inc. ("RCC"), Advanced Cellular Telephone, Inc. ("ACT"),
         Leroy Faith, Sr., Eddie Ray Faith, Donald Dewayne Faith and Leroy
         Faith, Jr.  (collectively, the "Shareholders") pursuant to that
         certain Agreement and Plan of Merger dated April 26, 1996 among A+
         Network, Inc. ("A+ Network"), RCC, ACT and the Shareholders, as
         amended by that certain Amendment to Agreement and Plan of Merger
         effective December 31, 1996 among the Borrower (as successor in
         interest by merger with A+ Network), Metrocall of Shreveport, Inc.,
         RCC, ACT, the Shareholders and Daniel R. Lozier, as escrow agent; and"

                 (b)      Section 7.8 of the Loan Agreement, Senior Leverage
Ratio, is hereby amended by deleting the phrase "at the time of any proposed
sale, exchange or other disposition of assets by the Borrower or any Restricted
Subsidiary" and substituting in lieu thereof the phrase "at the time of any
Asset Disposition by the Borrower or any Restricted Subsidiary."

                 (c)      Section 7.9 of the Loan Agreement, Total Leverage
Ratio, is hereby amended by deleting the phrase "at the time of any proposed
sale, exchange or other disposition of assets by the Borrower or any Restricted
Subsidiary" and substituting in lieu thereof the phrase "at the time of any
Asset Disposition by the Borrower or any Restricted Subsidiary."

                 (d)      Section 7.10 of the Loan Agreement, Annualized
Operating Cash Flow to Pro Forma Debt Service Ratio, is hereby amended by
deleting the phrase "at the time of any proposed sale, exchange or other
disposition of assets by the Borrower or any Restricted Subsidiary" and
substituting in lieu thereof the phrase "at the time of any Asset Disposition
by the Borrower or any Restricted Subsidiary."

                 (e)      Section 7.12 of the Loan Agreement, Operating Cash
Flow to Net Cash Interest Expense Ratio, is hereby amended by deleting the
phrase "at the time of any proposed sale, exchange or other disposition of
assets by the Borrower or any Restricted Subsidiary" and substituting in lieu
thereof the phrase "at the time of any Asset Disposition by the Borrower or any
Restricted Subsidiary."

         5.      Amendments to Schedules to Loan Agreement.  Schedules 5, 8, 9,
10 and 11 to the Loan Agreement, are hereby amended by deleting the existing
Schedules 5, 8, 9, 10 and 11 in their entireties and by substituting the
attached Schedules 5, 8, 9, 10 and 11, in lieu thereof.





                                      -5-
<PAGE>   6
         6.      Consent.

                 (a)      Notwithstanding Section 7.4(a) of the Loan Agreement,
the Banks hereby consent to the TMS Asset Disposition.  On or prior to
consummation of the TMS Asset Disposition, the Borrower shall provide to the
Managing Agents, in form and substance satisfactory to the Managing Agents, (i)
evidence of receipt by the Borrower of cash consideration of at least
$10,300,000, (ii) evidence of receipt by the escrow agent of $700,000 in
accordance with the terms of the TMS Asset Purchase Agreement, (iii)
certification to the Agents and the Banks of the Borrower's compliance with
Sections 7.8, 7.9, 7.10, 7.11 and 7.12 of the Loan Agreement after giving
effect to the TMS Asset Disposition together with any calculations necessary to
demonstrate such compliance, (iv) certification to the Agents and the Banks
that a Default does not exist and will not be caused by the TMS Asset
Disposition, (v) all material information pertaining to the TMS Asset
Disposition and (vi) evidence of compliance with Sections 7.4(a)(i), 7.4(a)(ii)
and 7.4(a)(iii) of the Loan Agreement.  The Banks acknowledge and agree that,
for purposes of Section 7.4(a) of the Loan Agreement, the Net Available
Proceeds from the TMS Asset Disposition shall not count against the $10,000,000
basket.

                 (b)      Notwithstanding Section 7.4(b) of the Loan Agreement,
the Banks hereby consent to the liquidation of the TMS Subsidiaries so long as
the TMS Asset Disposition has been completed in accordance with the terms and
condition of 6(a) above.

         7.      Strict Compliance.  Except for the amendments and consent set
forth above, the text of the Loan Agreement shall remain unchanged and in full
force and effect.  The amendments and consent agreed to herein shall not
constitute a modification of the Loan Agreement or a course of dealing with the
Agents and the Banks, or any of them, at variance with the Loan Agreement such
as to require further notice by the Administrative Agent, the Banks, the
Majority Banks, or any of them, to require strict compliance with the terms of
the Loan Agreement, as amended by this Amendment, in the future.

         8.      Representations and Warranties.  The Borrower hereby
represents and warrants to and in favor of the Administrative Agent and the
Banks as follows:

                 (a)      Each representation and warranty set forth in Article
4 of the Loan Agreement, as amended hereby, is hereby restated and affirmed as
true and correct in all material respects as of the date hereof, except to the
extent previously fulfilled in accordance with the terms of the Loan Agreement,
as amended hereby, and to the extent relating specifically to the Agreement
Date or otherwise inapplicable;

                 (b)      The Borrower has the corporate power and authority
(i) to enter into this Amendment, and (ii) to do all acts and things as are
required or contemplated hereunder to be done, observed and performed by it;

                 (c)      This Amendment has been duly authorized, validly
executed and delivered by one or more Authorized Signatories of the Borrower,
and constitutes the legal, valid and





                                      -6-
<PAGE>   7
binding obligations of the Borrower, enforceable against the Borrower in
accordance with its terms, subject, as to enforcement of remedies, to the
following qualifications:  (i) an order of specific performance and an
injunction are discretionary remedies and, in particular, may not be available
where damages are considered an adequate remedy at law, and (ii) enforcement
may be limited by bankruptcy, insolvency, liquidation, reorganization,
reconstruction and other similar laws affecting enforcement of creditors'
rights generally (insofar as any such law relates to the bankruptcy, insolvency
or similar event of the Borrower); and

                 (d)      The execution and delivery of this Amendment and
performance by the Borrower under the Loan Agreement, as amended hereby, does
not and will not require the consent or approval of any regulatory authority or
governmental authority or agency having jurisdiction over the Borrower which
has not already been obtained, nor be in contravention of or in conflict with
the Certificate of Incorporation or By-Laws of the Borrower, or any provision
of any statute, judgment, order, indenture, instrument, agreement, or
undertaking, to which the Borrower is party or by which the Borrower's assets
or properties are bound.

         9.      Conditions Precedent to Effectiveness of Amendment.  The
                 effectiveness of this Amendment is subject to:

                 (a)      all of the representations and warranties of the
         Borrower under Section 8 hereof which are made as of the date hereof,
         shall be true and correct in all material respects;

                 (b)      receipt by the Administrative Agent and the Banks of
         a signed legal opinion of Wilmer, Cutler & Pickering, counsel to the
         Borrower and its Subsidiaries, in form and substance satisfactory to
         the Administrative Agent and its special counsel;

                 (c)      receipt by the Administrative Agent and the Banks of
         a certificate of incumbency with respect to each Authorized Signatory
         of the Borrower, in form and substance satisfactory to the
         Administrative Agent and its special counsel; and

                 (d)      receipt of any other documents that the
         Administrative Agent, the Banks, or any of them, may reasonably
         request, certified by an officer of the Borrower if so requested.

         10.     Counterparts.  This Amendment may be executed in multiple
counterparts, each of which shall be deemed to be an original and all of which
when taken together shall constitute one and the same agreement.

         11.     Law of Contract.  This Amendment shall be deemed to be made
pursuant to the laws of the State of New York and shall be construed,
interpreted, performed and enforced in accordance therewith.

         12.     Loan Document.  This Amendment shall constitute a Loan
Document.

         13.     Effective Date.  Upon satisfaction of the conditions precedent
referred to in Section 9 above, this Amendment shall be effective as of the
30th day of April, 1997.





                                      -7-
<PAGE>   8
         IN WITNESS WHEREOF, the parties hereto have caused their respective
duly authorized officers or representatives to execute, deliver and (in the
Borrower's case) seal this Amendment as of the day and year first above
written, to be effective as set forth in Section 13 hereof.

BORROWER:                 METROCALL, INC., a Delaware corporation


                          By:                                                  
                              -------------------------------------------------
                          
                              Its:                                          
                                  ---------------------------------------------

[CORPORATE SEAL]           Attest:   
                                  ---------------------------------------------

                              Its:
                                  ---------------------------------------------


ADMINISTRATIVE AGENT:     TORONTO DOMINION (TEXAS), INC.


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


BANKS:                    THE TORONTO-DOMINION BANK


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


                          BANKBOSTON, N.A. (formerly known as The First 
                          National Bank of Boston)


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





<PAGE>   9
BANKS                     FIRST UNION NATIONAL BANK OF NORTH CAROLINA
(continued)

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


                          FLEET NATIONAL BANK

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


                          ROYAL BANK OF CANADA


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


                          PNC BANK, NATIONAL ASSOCIATION


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


                          NATIONSBANK OF TEXAS, N.A.


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





<PAGE>   10
BANKS                     RIGGS BANK N.A.
(continued)               
                          
                          By:                                                  
                              -------------------------------------------------
                          
                              Title:                                          
                                     ------------------------------------------
                          
                          
                          SUNTRUST BANK, CENTRAL FLORIDA, N.A.
                          
                          
                          By:                                                 
                              -------------------------------------------------
                          
                              Title:                                          
                                     ------------------------------------------
                          
                          
                          VAN KAMPEN AMERICAN CAPITAL PRIME RATE INCOME TRUST
                          
                          
                          By:                                                  
                              -------------------------------------------------
                          
                              Title:                                           
                                     ------------------------------------------
                          
                          
                          



<PAGE>   1
                                                                   EXHIBIT 10.14

            SECOND AMENDMENT TO AMENDED AND RESTATED LOAN AGREEMENT


         THIS SECOND AMENDMENT TO AMENDED AND RESTATED LOAN AGREEMENT (the
"Amendment") is made as of this 11th day of August, 1997 by and among
Metrocall, Inc., a Delaware corporation (the "Borrower"); The Toronto-Dominion
Bank, BankBoston, N.A., First Union National Bank of North Carolina, Fleet
National Bank, Royal Bank of Canada, PNC Bank, National Association,
NationsBank of Texas, N.A., Riggs Bank N.A., SunTrust Bank, Central Florida,
N.A., Van Kampen American Capital Prime Rate Income Trust and Finova Capital
Corporation (collectively, the "Banks") and Toronto Dominion (Texas), Inc., as
administrative agent for the Banks (the "Administrative Agent"),

                              W I T N E S S E T H:

         WHEREAS, the Borrower; the Banks; First Union National Bank of North
Carolina, Fleet National Bank, Royal Bank of Canada, PNC Bank, National
Association and NationsBank of Texas, N.A., as co-agents (collectively, in such
capacity, the "Co-Agents"); The Toronto-Dominion Bank, as documentation agent
(in such capacity, the "Documentation Agent"); BankBoston, N.A., as syndication
agent (in such capacity, the "Syndication Agent"); The Toronto-Dominion Bank
and BankBoston, N.A., as managing agents (in such capacity, the "Managing
Agents"); and the Administrative Agent are parties to that certain Amended and
Restated Loan Agreement dated as of September 20, 1996, as amended by that
certain First Amendment to Amended and Restated Loan Agreement dated as of
April 30, 1997 (as amended, the "Loan Agreement"); and

         WHEREAS, the Borrower desires to enter into that certain Agreement and
Plan of Merger, dated as of August 8, 1997 (the "ProNet Merger Agreement")
pursuant to which ProNet Inc. will merge with and into the Borrower, with the
Borrower being the surviving corporation (the "ProNet Merger"); and

         WHEREAS, the Borrower has requested that the Administrative Agent and
the Banks agree to amend certain provisions of the Loan Agreement to provide
for the creation of a third credit facility pursuant to Section 7.1(f) which
shall be in a principal amount not to exceed $25,000,000; and

         WHEREAS, the Borrower has requested, and the Administrative Agent and
the Banks have agreed, subject to the terms hereof, to consent to the
transactions described above and to amend certain provisions of the Loan
Agreement as provided herein, in part, for the payment of the Amendment Fee (as
defined herein);

         NOW, THEREFORE, for and in consideration of the mutual covenants and
agreements contained herein, and for other good and valuable consideration, the
receipt and sufficiency of which is acknowledged, the parties agree that all
capitalized terms used herein which are not otherwise defined herein shall have
the meanings ascribed thereto in the Loan Agreement, and further agree as
follows:
<PAGE>   2
         1.      Amendments to Article 1.

                 (a)      Article 1 of the Loan Agreement, Definitions, is
hereby amended by deleting the definitions of "Commitment Ratio," "Commitments"
and "Notes" in their entireties and substituting the following in lieu thereof:

                 "`Commitment Ratio' shall mean, with respect to any Bank for
         either Commitment, the percentage equivalent of the ratio which such
         Bank's portion of such Commitment bears to the aggregate amount of
         such Commitment (as each may be adjusted from time to time as provided
         herein); and 'Commitment Ratios' shall mean, with respect to either
         Commitment, the Commitment Ratios of all of the Banks with respect to
         such Commitment.  As of the date of the Second Amendment to this
         Agreement, the Commitment Ratios of the Banks party to this Agreement
         are as follows:

<TABLE>
<CAPTION>
                                          Facility A                  
                        Facility A        Commitment        Facility B     
        Banks           Commitment           Ratio          Commitment     
 <S>                  <C>               <C>               <C>             
The Toronto-        $ 16,499,625.10       7.333166712%   $  9,166,458.40
Dominion Bank

BankBoston, N.A     $ 32,571,053.68      14.476023857%   $  8,095,029.82
(formerly known
as The First
National Bank of
Boston)

First Union         $ 22,285,901.73       9.904845213%   $ 12,381,056.52
National Bank of
North Carolina

Fleet National      $ 22,285,901.73       9.904845213%   $ 12,381,056.52
Bank

Royal Bank of       $ 22,285,901.73       9.904845213%   $ 12,381,056.52
Canada

PNC Bank,           $ 16,071,428.57       7.142857142%   $  8,928,571.43
National
Association

NationsBank of      $ 22,285,901.73       9.904845213%   $ 12,381,056.52
Texas, N.A

Riggs Bank N.A      $  9,642,857.15       4.285714285%   $  5,357,142.85

SunTrust Bank,      $  9,642,857.15       4.285714285%   $  5,357,142.85
Central Florida,
National Association

Van Kampen          $ 22,500,000.00      10.000000000%   $ 12,500,000.00
American Prime
Rate Income Trust

Finova Capital      $ 22,500,000.00      10.000000000%   $ 12,500,000.00
Corporation

The Bank of New     $  6,428,571.43       2.857142857%   $  3,571,428.57
York

      TOTALS:      $ 225,000,000.00            100.00%  $ 125,000,000.00 

<CAPTION>
                        Facility B                           Facility C        Total
                        Commitment      Facility C           Commitment        Dollar
                          Ratio         Commitment             Ratio         Commitment
<S>                     <C>            <C>                  <C>             <C>
The Toronto-            7.333166720%   $ 12,500,000.00      50.000000000%   $ 38,166,083.50
Dominion Bank

BankBoston, N.A        14.476023856%   $ 12,500,000.00      50.000000000%   $ 63,166,083.50
(formerly known
as The First
National Bank of
Boston)

First Union             9.904845216%              0.00       0.000000000%   $ 34,666,958.25
National Bank of
North Carolina

Fleet National Bank     9.904845216%              0.00       0.000000000%   $ 34,666,958.25

Royal Bank of Canada    9.904845216%              0.00       0.000000000%   $ 34,666,958.25

PNC Bank, National      7.142857142%              0.00       0.000000000%   $ 25,000,000.00
Association 

NationsBank of          9.904845216%              0.00       0.000000000%   $ 34,666,958.25
Texas, N.A

Riggs Bank N.A          4.285714285%              0.00       0.000000000%   $ 15,000,000.00

SunTrust Bank,          4.285714285%              0.00       0.000000000%   $ 15,000,000.00
Central Florida,
National
Association

Van Kampen             10.000000000%              0.00       0.000000000%   $ 35,000,000.00
American Prime
Rate Income Trust

Finova Capital         10.000000000%              0.00       0.000000000%   $ 35,000,000.00
Corporation

The Bank of New York    2.857142856%              0.00        0.00000000%   $ 10,000,000.00
York

      TOTALS:                100.00%   $ 25,000,000.00            100.00%  $ 375,000,000.00
</TABLE>


                                     -2-
<PAGE>   3

                 "'Commitments' shall mean, collectively, the Facility A
         Commitment, the Facility B Commitment and the Facility C Commitment."

                 "'Notes' shall mean, collectively, the Facility A Notes, the
         Facility B Notes, the Facility C Notes, any other promissory notes
         issued by the Borrower to evidence the Loans, and any extensions,
         renewals or amendments to, or replacements of, the foregoing."

         (b)     Article 1 of the Loan Agreement, Definitions, is hereby
further amended by adding the following definitions in the appropriate
alphabetical order:

                 "Facility C Commitment' shall mean the several obligations of
         the Banks to fund their respective portions of the Loans to the
         Borrower in accordance with the Banks' respective Commitment Ratios in
         the aggregate amount of up to $25,000,000 pursuant to the terms hereof
         and as such obligations may be reduced from time to time pursuant to
         the terms hereof."

                 "Facility C Notes' shall mean, collectively, those certain
         promissory notes in an aggregate original principal amount of
         $25,000,000, issued to the Banks by the Borrower with respect to the
         Facility C Commitment, each one substantially in the form of Exhibit A
         to the Second Amendment to this Agreement, any other promissory notes
         issued by the Borrower to evidence the Loans under the Facility C
         Commitment, and any extensions, renewal or amendments to, or
         replacements of, the foregoing."

                 "`Office Building Acquisition Agreement' shall mean that
         certain Option and Purchase Agreement of Sale dated April 14, 1994
         between Douglas Jemal and Joyce Jemal and the Borrower with respect to
         the acquisition by the Borrower for a purchase price not 



                                     -3-



<PAGE>   4


         to exceed $2,900,000 of a 51% interest in the office complex located
         at 6910 Richmond Highway, Alexandria, Virginia  23306, as such
         agreement may  be amended, modified  or supplemented from time to
         time, together with all exhibits, schedules and appendices thereto,
         all of which shall be  in form and substance reasonably satisfactory
         to the Managing Agents."
        
                 "`Office Building Acquisition Date' shall mean the date on
         which the Borrower acquires the Office Building Assets pursuant to the
         Office Building Acquisition Agreement."

                 "`Office Building Assets' shall mean the interest in the
         office complex located at 6910 Richmond Highway, Alexandria, Virginia
         22306 to be acquired by the Borrower pursuant to the Office Building
         Acquisition Agreement."

                 "`Office Building Partnership' shall mean 6910 Richmond
         Highway Associates, a Virginia general partnership or any successor or
         other entity to which the Borrower contributes the Office Building
         Assets in accordance with Section 8(g) of the Office Building
         Acquisition Agreement.

         2.      Amendments to Article 2.

         (a)     Section 2.1 of the Loan Agreement, Commitments," is hereby
amended by adding the following new subsection 2.1(c) thereto:

                 "(c)     Facility C Commitment.  The Banks agree, severally,
         in accordance with their respective Commitment Ratios, and not
         jointly, upon the terms and subject to the conditions of this
         Agreement, to lend to the Borrower, prior to the Maturity Date, an
         amount not to exceed at any one time outstanding, in the aggregate,
         the Facility C Commitment.  Subject to the terms and conditions
         hereof, Advances under the Facility C Commitment may be repaid and
         reborrowed from time to time on a revolving basis."

         (b)     Section 2.4 of the Loan Agreement, Commitment Fees, is hereby
amended by deleting subsection 2.4(a) thereof in its entirety and by
substituting the following in lieu thereof:

                 "(a)     The Borrower agrees to pay each of the Banks, in
         accordance with their respective Commitment Ratios for the applicable
         Commitment, a commitment fee on the aggregate unborrowed balance of
         (i) the Facility A Commitment and the Facility B Commitment for each
         day from the Agreement Date until the Maturity Date and (ii) the
         Facility C Commitment for each day from the effective date of the
         Second Amendment to Loan Agreement until the Maturity Date, (X) at all
         times during which the Total Leverage Ratio is greater than or equal
         to 4.50:1, at the rate of three-eighths of one percent (3/8%) per
         annum, and (Y) at all times during which the Total Leverage Ratio is
         less than 4.50:1, at the rate of one-quarter of one percent (1/4%) per
         annum."





                                      -4-
<PAGE>   5
         (c)     Subsection 2.5(a) of the Loan Agreement, Scheduled Reductions
in Facility A Commitment, is hereby amended by deleting the existing subsection
in its entirety and substituting the following in lieu thereof:

                 "(a)     Scheduled Reductions in Facility A and Facility C
         Commitment.  Commencing March 31, 2000 and at the end of each calendar
         quarter thereafter, (i) the Facility A Commitment shall be
         automatically and permanently reduced by an amount equal to the
         percentage of the Facility A Commitment as in effect on the Agreement
         Date and (ii) the Facility C Commitment shall be automatically and
         permanently reduced by an amount equal to the Facility C Commitment as
         in effect on the date of the Second Amendment to Loan Agreement, pro
         rata between the Facility A Commitment and the Facility C Commitment,
         as set forth below:

<TABLE>
<CAPTION>
                                                                                Amount of
         Dates of Facility A and Facility C Commitment Reductions             Each Reduction
         --------------------------------------------------------             --------------
         <S>                                                                     <C>
         March 31, 2000, June 30, 2000,                                    
         September 30, 2000 and December 31, 2000                                 2.500%
                                                                           
         March 31, 2001, June 30, 2001,                                    
         September 30, 2001 and December 31, 2001                                 3.750%
                                                                           
         March 31, 2002, June 30, 2002,                                    
         September 30, 2002 and December 31, 2002                                 5.000%
                                                                           
         March 31, 2003, June 30, 2003,                                    
         September 30, 2003 and December 31, 2003                                 6.250%
                                                                           
         March 31, 2004, June 30, 2004,                                    
         September 30, 2004 and December 31, 2004                                7.500%"
</TABLE>

         (d)     Subsection 2.5(b) of the Loan Agreement, Excess Cash Flow
Recapture, is hereby amended by deleting the existing subsection in its
entirety and substituting the following in lieu thereof:

                 "(b)     Excess Cash Flow Recapture.  Commencing on March 31,
         2000 and on each March 31st and September 30th occurring thereafter
         during the term of this Agreement, the Facility A Commitment and the
         Facility C Commitment shall be automatically and permanently reduced,
         pro rata between the Facility A Commitment and the Facility C
         Commitment, by an amount equal to fifty percent (50%) of Excess Cash
         Flow, determined for the two (2) consecutive fiscal quarters then
         ended."

         (e)     Section 2.6 of the Loan Agreement, Voluntary Commitment
Reductions, is hereby amended by deleting the existing Section in its entirety
and by substituting the following new Section 2.6 in lieu thereof:


                                     -5-


<PAGE>   6
                 "Section 2.6     Voluntary Commitment Reductions.  The
         Borrower shall have the right, at any time and from time to time after
         the Agreement Date, upon at least three (3) Business Days' prior
         written notice to the Administrative Agent, without premium or
         penalty, to cancel or reduce permanently all or a portion of the
         Facility A Commitment and the Facility C Commitment, on a pro rata
         basis between the Facility A Commitment and the Facility C Commitment
         on the basis of the respective Commitment Ratios of the Banks
         applicable to the particular Commitment; provided, however, that any
         such partial reduction shall be made in an amount not less than
         $5,000,000 and in integral multiples of $1,000,000.  As of the date of
         cancellation or reduction set forth in such notice, the applicable
         Commitment shall be permanently reduced to the amount stated in the
         Borrower's notice for all purposes herein, and the Borrower shall pay
         to the Administrative Agent for the Banks the amount necessary to
         reduce the principal amount of the Loans then outstanding under such
         Commitment to not more than the amount of such Commitment as so
         reduced, together with accrued interest on the amount so prepaid and
         commitment fees accrued through the date of the reduction with respect
         to the amount reduced."

         (f)     Subsection 2.7(b)(i) of the Loan Agreement, Loans in Excess of
Commitments, is hereby amended by amending the phrase "either Commitment"
therein to "any Commitment."

         (g)     Subsection 2.7(b)(iii) of the Loan Agreement, Equity Proceeds,
is hereby amended by deleting the existing Section in its entirety and by
substituting the following new Section 2.7(iii) in lieu thereof:

                   "(iii)         Equity Proceeds.  The Borrower shall repay
         Loans outstanding under the Facility A Commitment and the Facility C
         Commitment, pro rata between the Facility A Commitment and the
         Facility C Commitment, with the proceeds of any equity issued by the
         Borrower on or after the Agreement Date, net of reasonable and
         customary transaction costs."

         (h)     Section 2.8 of the Loan Agreement, Notes; Loan Accounts, is
hereby amended by deleting the second sentence of subsection 2.8(a) thereof in
its entirety and by substituting the following in lieu thereof:

                 "One Facility A Note, one Facility B Note and one Facility C
         Note shall be payable to the order of each Bank for such Commitment,
         in accordance with such Bank's respective Commitment Ratio for the
         applicable Commitment."

         (i)     Section 2.9 of the Loan Agreement, Manner of Payment, is
hereby amended by deleting subsection 2.9(c) thereof in its entirety and by
substituting the following in lieu thereof:

                 "(c)     Prior to the declaration of an Event of Default under
         Section 8.2 hereof, if



                                     -6-

<PAGE>   7
         some but less than all amounts due from the Borrower are received by
         the Administrative Agent with respect to the Obligations, the
         Administrative Agent shall distribute such amounts in the following
         order of priority, all in accordance where applicable with the
         respective Commitment Ratios of the Banks for the applicable
         Commitment:  (i) to the payment of any fees or expenses then due and
         payable to the Administrative Agent and the Banks, or any of them;
         (ii) to the payment of interest then due on Loans; (iii) to the
         payment of all other amounts not otherwise referred to in this Section
         2.9(c) then due and payable to the Administrative Agent and the Banks,
         or any of them, hereunder or under the Notes or any other Loan
         Document; (iv) to the payment of principal then due and payable on the
         Loans made under the Facility B Commitment; and (v) to the payment of
         principal then due and payable on the Loans made under the Facility A
         Commitment and the Facility C Commitment, pro rata between the
         Facility A Commitment and the Facility C Commitment on the basis of
         the respective Commitment Ratios of the Banks applicable to the
         particular Facility A Commitment and Facility C Commitment."

         (j)     Section 2.11 of the Loan Agreement, Pro Rata Treatment, is
hereby amended by deleting subsection (a), Advances, thereof in its entirety
and by substituting the following in lieu thereof:

                 "(a)     Advances.  Each Advance from the Banks under any
         Commitment shall be made pro rata on the basis of the respective
         Commitment Ratios of the Banks applicable to the particular
         Commitment."

         3.      Amendment to Section 5.10.  Section 5.10 of the Loan
Agreement, Use of Proceeds, is hereby amended by adding thereto the phrase "and
the Facility C Commitment" immediately after the phrase "under the Facility A
Commitment."

         4.      Amendments to Article 7.

                 (a)      Section 7.9 of the Loan Agreement, Total Leverage
Ratio, is hereby amended by deleting existing Section 7.9 thereof in its
entirety and by substituting the following therefor:

                 "Section 7.9  Total Leverage Ratio.  (a) As of the end of any
         calendar quarter, (b) at the time of any Advance hereunder (after
         giving effect to such Advance), (c) upon the incurrence by the
         Borrower of any Subordinated Debt (after giving effect thereto), (d)
         at the time of any proposed Asset Disposition by the Borrower or any
         Restricted Subsidiary, and (e) at the time of any acquisition or
         investment by the Borrower or any Restricted Subsidiary, the Borrower
         shall not permit the Total Leverage Ratio to exceed the ratios set
         forth below during the periods indicated:


                                     -7-


<PAGE>   8
<TABLE>
<CAPTION>
                 Period                                        Ratio
                 ------                                        -----
                 <S>                                           <C>
                 January 1, 1997 through
                   December 31, 1997                           6.00:1
                                                 
                 January 1, 1998 through         
                   December 31, 1998                           5.75:1
                                                 
                 January 1, 1999 through         
                   December 31, 1999                           5.25:1
                                                 
                 January 1, 2000 through         
                   December 31, 2000                           4.50:1
                                                 
                 January 1, 2001 and thereafter                4.00:1"
</TABLE>

                 (b)      Section 7.12 of the Loan Agreement, Operating Cash
Flow to Net Cash Interest Expense Ratio, is hereby amended by deleting existing
Section 7.12 thereof in its entirety and by substituting the following
therefor:

                 "Section 7.12    Operating Cash Flow to Net Cash Interest
         Expense Ratio.  (a) As of the end of any calendar quarter, (b) at the
         time of any Advance, (c) upon the incurrence by the Borrower of any
         Subordinated Debt, (d) at the time of any proposed Asset Disposition
         by the Borrower or any Restricted Subsidiary, and (e) at the time of
         any acquisition or investment by the Borrower or any Restricted
         Subsidiary, the Borrower shall not permit the ratio of (i) Operating
         Cash Flow for the most recently completed fiscal quarter (calculated
         as of the end of the fiscal quarter being tested in the case of
         Section 7.12(a) hereof, or as of the end of the most recently
         completed fiscal quarter for which financial statements are required
         to have been delivered pursuant to Section 6.1 or 6.2 hereof, as the
         case may be, in the case of Sections 7.12(b), (c), (d) and (e) hereof)
         to (ii) Net Cash Interest Expense for such fiscal quarter to be less
         than or equal to the ratios set forth below for the periods indicated:

<TABLE>
<CAPTION>
                          Period                                    Ratio
                          ------                                    -----
                 <S>                                                <C>
                 April 1, 1997 through
                   December 31, 1999                                1.75:1

                 January 1, 2000 through
                   December 31, 2000                                2.00:1

                 January 1, 2001
                   and thereafter                                   2.25:1
</TABLE>

         Notwithstanding the foregoing, in the event that the ratio of
Operating Cash Flow for the fiscal quarter ending June 30, 1997 to Interest
Expense for such fiscal quarter is less than 2.00 to 1, the Borrower agrees
that on or before September 30, 1997, it shall cause equity in form


                                     -8-


<PAGE>   9
satisfactory to the Managing Agents of not less than $50,000,000 (net of
reasonable and customary transaction costs) to be infused into the Borrower
since the Agreement Date.

                 (c)      Section 7.14 of the Loan Agreement, Real Estate, is
hereby amended by deleting existing Section 7.14 thereof in its entirety and by
substituting the following therefor:

                 "Section 7.14  Real Estate.  Except as set forth on Schedule
         12 attached hereto, neither the Borrower nor any of the Restricted
         Subsidiaries shall purchase any real estate or enter into any
         sale/leaseback transaction.  Notwithstanding the foregoing, the
         Borrower may purchase the Office Building Assets pursuant to the
         Office Building Acquisition Agreement provided that (a) at all times
         prior to contribution of the Office Building Assets to the Office
         Building Partnership (i) the Borrower grants a negative pledge on the
         Office Building Assets to the Administrative Agent and delivers to the
         Administrative Agent all other documentation, including, without
         limitation, opinions of counsel, an appraisal and a Phase I
         environmental audit which in the reasonable opinion of the Managing
         Agents is appropriate with respect to such grant, including any
         documentation requested by the Banks (collectively, the "Office
         Building Documents") and (ii) not less than five (5) days prior to the
         Office Building Acquisition Date, the Borrower shall have provided the
         Managing Agents with copies of the Office Building Acquisition
         Agreement, the Office Building Documents and all other documents
         related to the transfer of the Office Building Assets to the Borrower,
         including, without limitation, lien search results from appropriate
         jurisdictions with respect to the Office Building Assets, all of which
         shall be certified by an Authorized Signatory to be true, complete and
         correct, and all of which shall be in form and substance satisfactory
         to the Managing Agents; (b) prior to or simultaneously with the
         contribution of the Office Building Assets to the Office Building
         Partnership, (i) the Borrower shall have provided the Managing Agents
         with all documentation required by Section 5.13 hereof and (ii) the
         Borrower shall have provided the Managing Agents with replacement
         Office Building Documents pursuant to which the Office Building
         Partnership grants a negative pledge on the Office Building Assets to
         the Administrative Agent all of which replacement Office Building
         Documents shall be form and substance satisfactory to the Managing
         Agents and (c) the Borrower shall promptly cause the contribution of
         the Office Building Assets to the Office Building Partnership."

         5.      Amendments to Article 11.

                 (a)      Section 11.5 of the Loan Agreement, Assignment, is
hereby amended by deleting the parenthetical in subsection 11.5(c) thereof in
its entirety and by substituting the following in lieu thereof:

         "(other than assignments to another Bank, which may be made without
         limitation, whether as to dollar amount or otherwise, so long as, if
         such assignment takes place after the occurrence of an Event of
         Default such assignment is made with the prior written consent of the
         Administrative Agent, which consent shall not be unreasonably
         withheld, and other assignments and participations described in
         Section 11.5(b) which may be made without any limitation whatsoever)"



                                     -9-

<PAGE>   10
                 (b)      Section 11.5 of the Loan Agreement, Assignment, is
hereby amended by deleting subsection 11.5(c)(v) thereof in its entirety and by
inserting "(v) [RESERVED]" in lieu thereof.

                 (c)      Section 11.12 of the Loan Agreement, Amendment and
Waiver, is hereby amended by deleting subsection 11.12(a) thereof in its
entirety and substituting the following therefor:

         "(a)  any increase in the amount of any Commitment,"

         6.      Amendments to Schedules.  Schedules 8, 11 and 12 to the Loan
Agreement are hereby amended by deleting the existing Schedules 8, 11 and 12 in
their respective entireties and by substituting the attached Schedule 8,
Schedule 11 and Schedule 12 in lieu thereof.

         7.      Consent.         Notwithstanding Section 7.6 of the Loan
Agreement, the Banks hereby consent to the ProNet Merger.  On or prior to
consummation of the ProNet Merger, the Borrower (a) shall provide to the
Managing Agents, in form and substance satisfactory to the Managing Agents, (i)
evidence that all Necessary Authorizations in respect of the ProNet Merger have
been obtained or made, are in full force and effect and are not subject to any
pending or, to the knowledge of the Borrower, threatened reversal or
cancellation, and the Agents and the Banks shall have received a certificate of
an Authorized Signatory so stating; (ii) opinions of FCC and special corporate
counsel to the Borrower with respect to the ProNet Merger; (iii) certification
to the Agents and the Banks of the Borrower's compliance with Sections 7.8,
7.9, 7.10, 7.11 and 7.12 of the Loan Agreement after giving effect to the
ProNet Merger together with any calculations necessary to demonstrate such
compliance; (iv) certification to the Agents and the Banks that a Default does
not exist and will not be caused by the ProNet Merger; (v) all documentation
required under Section 5.13 of the Loan Agreement with respect to the ProNet
Merger; (vi) copies of the ProNet Merger Agreement and all other documents
related to the ProNet Merger, including, without limitation, lien search
results from appropriate jurisdictions, all of which shall be certified by an
Authorized Signatory to be true, complete and correct as of the date of the
ProNet Merger, together with duly executed UCC-1 financing statements and other
collateral documentation deemed reasonably necessary by the Managing Agents to
reflect or perfect the Security Interest of the Administrative Agent (for
itself and on behalf of the Banks) in such assets; (vii) reliance letters
regarding opinions of counsel to ProNet, in form and substance satisfactory to
the Managing Agents and its special counsel and (b) shall not enter into any
material amendment of, or agree to accept or consent to any waiver of any
material provision of the ProNet Merger Agreement.  The Banks acknowledge and
agree that, for purposes of Section 7.6(c)(ii) of the Loan Agreement, the Net
Purchase Price from the ProNet Merger shall not count against the $50,000,000
basket.


                                     -10-


<PAGE>   11
         8.      Strict Compliance.  Except for the amendments and consent set
forth above, the text of the Loan Agreement shall remain unchanged and in full
force and effect.  The amendments and consent agreed to herein shall not
constitute a modification of the Loan Agreement or a course of dealing with the
Agents and the Banks, or any of them, at variance with the Loan Agreement such
as to require further notice by the Administrative Agent, the Banks, the
Majority Banks, or any of them, to require strict compliance with the terms of
the Loan Agreement, as amended by this Amendment, in the future.

         9.      Representations and Warranties.  The Borrower hereby
represents and warrants to and in favor of the Administrative Agent and the
Banks as follows:

                 (a)      Each representation and warranty set forth in Article
4 of the Loan Agreement, as amended hereby, is hereby restated and affirmed as
true and correct in all material respects as of the date hereof, except to the
extent previously fulfilled in accordance with the terms of the Loan Agreement,
as amended hereby, and to the extent relating specifically to the Agreement
Date or otherwise inapplicable;

                 (b)      The Borrower has the corporate power and authority
(i) to enter into this Amendment, and (ii) to do all acts and things as are
required or contemplated hereunder to be done, observed and performed by it;

                 (c)      This Amendment has been duly authorized, validly
executed and delivered by one or more Authorized Signatories of the Borrower,
and constitutes the legal, valid and binding obligations of the Borrower,
enforceable against the Borrower in accordance with its terms, subject, as to
enforcement of remedies, to the following qualifications:  (i) an order of
specific performance and an injunction are discretionary remedies and, in
particular, may not be available where damages are considered an adequate
remedy at law, and (ii) enforcement may be limited by bankruptcy, insolvency,
liquidation, reorganization, reconstruction and other similar laws affecting
enforcement of creditors' rights generally (insofar as any such law relates to
the bankruptcy, insolvency or similar event of the Borrower); and

                 (d)      The execution and delivery of this Amendment and
performance by the Borrower under the Loan Agreement, as amended hereby, does
not and will not require the consent or approval of any regulatory authority or
governmental authority or agency having jurisdiction over the Borrower which
has not already been obtained, nor be in contravention of or in conflict with
the Certificate of Incorporation or By-Laws of the Borrower, or any provision
of any statute, judgment, order, indenture, instrument, agreement, or
undertaking, to which the Borrower is party or by which the Borrower's assets
or properties are bound.

         10.     Conditions Precedent to Effectiveness of Amendment.  The
                 effectiveness of this Amendment is subject to:

                 (a)      all of the representations and warranties of the
Borrower under Section 9 hereof which are made as of the date hereof, shall be 
true and correct in all material respects;



                                     -11-

<PAGE>   12
                 (b)      receipt by the Administrative Agent and each of the
Banks of a certificate of the chief financial officer of the Borrower
certifying that no Default exists both before and after giving effect to this
Amendment;

                 (c)      receipt by the Administrative Agent and each of the
Banks of a signed legal opinion of Wilmer, Cutler & Pickering, counsel to the
Borrower and its Subsidiaries in form and substance satisfactory to the
Administrative Agent and its special counsel;

                 (d)      receipt by the Administrative Agent for the account
of each of the Banks an amendment fee (the "Amendment Fee") by wire transfer of
immediately available funds equal to the product of (i) each Bank's pro rata
portion of the sum of the Facility A Commitment, the Facility B and the
Facility C Commitment as of the effective date of this Amendment multiplied by
(ii)(X) twenty-five one-hundredths of one percent (.25%) for each Bank which
becomes a signatory to this Amendment on or prior to August 11, 1997 or (Y) one
hundred twenty- five one-thousandths of one percent (.125%) for each Bank which
becomes a signatory to this Amendment after August 11, 1997; and

                 (e)      receipt of any other documents or instruments that
the Administrative Agent, the Banks, or any of them, may reasonably request,
certified by an officer of the Borrower if so requested.

         11.     Counterparts.  This Amendment may be executed in multiple
counterparts, each of which shall be deemed to be an original and all of which
when taken together shall constitute one and the same agreement.

         12.     Law of Contract.  This Amendment shall be deemed to be made
pursuant to the laws of the State of New York and shall be construed,
interpreted, performed and enforced in accordance therewith.

         13.     Loan Document.  This Amendment shall constitute a Loan
                 Document.

         14.     Effective Date.  Upon satisfaction of the conditions precedent
referred to in Section 9 above, this Amendment shall be effective as of the
date first above written.


                                     -12-


<PAGE>   13
         IN WITNESS WHEREOF, the parties hereto have caused their respective
duly authorized officers or representatives to execute and deliver this
Amendment all as of the day and year first above written.


BORROWER:                              METROCALL, INC., a Delaware corporation


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


ADMINISTRATIVE AGENT:                  TORONTO DOMINION (TEXAS), INC.


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

BANKS:                                 THE TORONTO-DOMINION BANK


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

                                       BANKBOSTON, N.A.


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

BANKS                                  FIRST UNION NATIONAL BANK OF
(continued)                            NORTH CAROLINA


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

                                     -13-
<PAGE>   14


                                       FLEET NATIONAL BANK

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



                                       ROYAL BANK OF CANADA


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


                                       PNC BANK, NATIONAL ASSOCIATION

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


                                       NATIONSBANK OF TEXAS, N.A.

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


                                       RIGGS BANK N.A.

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


                                     -14-

<PAGE>   15

BANKS                                  SUNTRUST BANK, CENTRAL FLORIDA, N.A.
(continued)
                                       By:
                                           -------------------------------------
                                                  Name:                        
                                                        ------------------------
                                                  Title:                      
                                                        ------------------------
                                                                               

                                      
                                       VAN KAMPEN AMERICAN CAPITAL PRIME RATE
                                       INCOME TRUST


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

                                       FINOVA CAPITAL CORPORATION

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

                                       THE BANK OF NEW YORK

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


                                     -15-

<PAGE>   1
 
                                                                    EXHIBIT 23.2
 
                  CONSENT OF MORGAN STANLEY & CO. INCORPORATED
 
     As financial adviser to Metrocall, Inc., we hereby consent to the use of
our fairness opinion dated August 8, 1997 included in this registration
statement as Exhibit B.
 
                                           MORGAN STANLEY & CO. INCORPORATED
 
                                           By: /s/ PAUL J. TAUBMAN
                                             -----------------------------------
                                               Paul J. Taubman
                                             Managing Director
 
September 19, 1997

<PAGE>   1
 
                                                                    EXHIBIT 23.3
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
     As independent public accountants, we hereby consent to the use of our
report (and to all references to our Firm) included in or made a part of this
registration statement.
 
                                                /s/ ARTHUR ANDERSEN LLP
                                          --------------------------------------
                                                   ARTHUR ANDERSEN LLP
 
Washington, D.C.
September 18, 1997

<PAGE>   1
 
                                                                    EXHIBIT 23.4
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
     As independent public accountants, we hereby consent to the incorporation
by reference in this registration statement of our report dated April 24, 1996
on the combined financial statements of O.R. Estman, Inc. and Dana Paging, Inc.
included in Metrocall, Inc.'s Form 8-K/A filed on October 1, 1996, for the year
ended December 31, 1995 and to all references to our Firm included in or made a
part of this registration statement filed on Form S-4.
 
                                                /s/ ARTHUR ANDERSEN LLP
                                          --------------------------------------
                                                   ARTHUR ANDERSEN LLP
 
Roseland, New Jersey
September 18, 1997

<PAGE>   1
 
                                                                    EXHIBIT 23.5
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We hereby consent to the incorporation by reference in this Registration
Statement on Form S-4 of Metrocall, Inc. of our report dated February 13, 1996,
except to NOTE M for which the date is September 30, 1996, relating to the
financial statements of Parkway Paging, Inc. which is appearing in the Current
Report on Form 8-K/A filed on October 1, 1996, of Metrocall, Inc.
 
                                            /s/ HUTTON PATTERSON & COMPANY
                                          --------------------------------------
                                                HUTTON PATTERSON & COMPANY
 
Dallas, Texas
September 18, 1997

<PAGE>   1
 
                                                                    EXHIBIT 23.6
 
                         INDEPENDENT AUDITORS' CONSENT
 
     We consent to the incorporation by reference in this Registration Statement
of Metrocall, Inc. on Form S-4 of our report dated February 28, 1996 appearing
in the Current Report on Form 8-K/A of Metrocall, Inc. filed on October 1, 1996.
 
                                               /s/ DELOITTE & TOUCHE LLP
                                          --------------------------------------
                                                  DELOITTE & TOUCHE LLP
 
Nashville, Tennessee
September 18, 1997

<PAGE>   1
 
                                                                    EXHIBIT 23.7
 
              CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
 
     We hereby consent to the incorporation by reference in this Registration
Statement on Form S-4 of Metrocall, Inc., of our report dated February 3, 1995,
except as to the first paragraph of Note 8, for which the date is August 31,
1995, relating to the financial statements of Network Paging Corporation.
 
                                               /s/ PRICE WATERHOUSE LLP
                                          --------------------------------------
                                                   PRICE WATERHOUSE LLP
 
Tampa, Florida
September 18, 1997

<PAGE>   1
 
                                                                    EXHIBIT 23.8
 
               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS
 
     We consent to the use of our report dated February 5, 1997, except for Note
N, as to which the date is March 4, 1997, with respect to the consolidated
financial statements of ProNet Inc. and its subsidiaries included in its Annual
Report on Form 10-K for the year ended December 31, 1996 that are incorporated
by reference (and included herein) in the Registration Statement (Form S-4 No.
333-xxxxx) and Prospectus of Metrocall, Inc. for the registration of 12,306,388
shares of its common stock.
 
                                                 /s/ ERNST & YOUNG LLP
                                          --------------------------------------
                                                    ERNST & YOUNG LLP
 
Dallas, Texas
September 18, 1997

<PAGE>   1
 
                                                                    EXHIBIT 23.9
 
                        CONSENT OF SALOMON BROTHERS INC
 
     As financial adviser to ProNet Inc., we hereby consent to the use of our
fairness opinion dated August 5, 1997 included in this registration statement as
Exhibit C.
 
                                          SALOMON BROTHERS INC
 
                                          /s/ SALOMON BROTHERS INC
                                          --------------------------------------
 
September 19, 1997


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