ARCH WIRELESS INC
10-Q, EX-10, 2000-11-14
RADIOTELEPHONE COMMUNICATIONS
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                           THIRD AMENDED AND RESTATED
                                CREDIT AGREEMENT

                                  by and among
                               ARCH PAGING, INC.,
                            THE LENDERS PARTY HERETO,
                              THE BANK OF NEW YORK,
                              ROYAL BANK OF CANADA,
                         TORONTO DOMINION (TEXAS), INC.,
                               BARCLAYS BANK PLC,
                                       and
                              FLEET NATIONAL BANK,
                               as Managing Agents,

                              ROYAL BANK OF CANADA,
                             as Documentation Agent,

                                BARCLAYS BANK PLC
                                       and
                              FLEET NATIONAL BANK,
                           as Co-Documentation Agents,

                         TORONTO DOMINION (TEXAS), INC.,
                              as Syndication Agent,

                                       and

                              THE BANK OF NEW YORK,
                             as Administrative Agent

                                      with
                           BNY CAPITAL MARKETS, INC.,
                                       and
                            TD SECURITIES (USA) INC.,
                       as Lead Arrangers and Book Runners

                           Dated as of March 23, 2000



<PAGE>



   THIRD AMENDED AND RESTATED CREDIT  AGREEMENT,  dated as of March 23, 2000, by
and among ARCH  PAGING,  INC.  (the  "Borrower"),  a Delaware  corporation,  the
Lenders  party  hereto,  THE BANK OF NEW YORK,  ROYAL  BANK OF  CANADA,  TORONTO
DOMINION (TEXAS),  INC.,  BARCLAYS BANK PLC and FLEET NATIONAL BANK, as Managing
Agents (in such  capacity,  the  "Managing  Agents"),  ROYAL BANK OF CANADA,  as
Documentation Agent (in such capacity, the "Documentation Agent"), BARCLAYS BANK
PLC and FLEET NATIONAL BANK, as Co-Documentation  Agents (in such capacity,  the
"Co-Documentation Agents"), TORONTO DOMINION (TEXAS), INC., as Syndication Agent
(in such  capacity,  the  "Syndication  Agent"),  and THE BANK OF NEW  YORK,  as
Administrative   Agent  for  the  Lenders  hereunder  (in  such  capacity,   the
"Administrative Agent").

                                    RECITALS

   A. Reference is made to the (i) Second Amended and Restated Credit  Agreement
(Tranche A and Tranche C Facilities),  dated as of June 29, 1998, as amended, by
and among the Borrower, the Lenders party thereto, The Bank of New York ("BNY"),
Royal Bank of Canada ("RBC"), Toronto Dominion (Texas), Inc. ("TD") and Barclays
Bank plc  ("Barclays"),  as Managing  Agents,  RBC, as  Documentation  Agent, as
Syndication Agent, and BNY, as Administrative Agent (the "Existing Tranche A and
Tranche  C Credit  Agreement")  and (ii)  Second  Amended  and  Restated  Credit
Agreement  (Tranche B Facility),  dated as of June 29, 1998, as amended,  by and
among the Borrower, the Lenders party thereto, BNY, RBC, as Documentation Agent,
TD and  Barclays,  as Managing  Agents,  RBC,  as  Documentation  Agent,  TD, as
Syndication  Agent, and BNY, as  Administrative  Agent (the "Existing  Tranche B
Credit Agreement" and, together with the Existing Tranche A and Tranche C Credit
Agreement, the "Existing API Credit Agreements").

   B. As of the Third  Restatement Date, (i) the aggregate amount of the Tranche
A Commitments  equals  $175,000,000,  (ii) the outstanding  principal  amount of
Tranche B Loans equals $100,000,000,  and (iii) the outstanding principal amount
of Tranche C Loans equals $302,940,000.

   C. The parties  hereto  desire to combine the Existing API Credit  Agreements
and to amend and restate the Existing API Credit Agreements as provided herein.

   D.  On the  Merger  Effective  Date,  the  Indebtedness  of  PageNet  and its
Subsidiaries  under the Existing PageNet Credit Agreement will be assumed by the
Borrower and, in connection  therewith,  the Existing  PageNet Credit  Agreement
will be amended and  restated  and combined  with this  Agreement,  the Existing
PageNet  Loans will be converted  to Tranche B-1 Loans and the Existing  PageNet
Lenders will become Tranche B-1 Lenders hereunder.

   E. For convenience,  this Agreement is dated as of March 23, 2000 (the "Third
Restatement  Date"),  and  references to certain  matters  related to the period
prior thereto have been deleted.
<PAGE>

ARTICLE 1. DEFINITIONS


   Section 1.1 Defined Terms.

      As used  in  this  Agreement,  the  following  terms  have  the  following
meanings:

      "ABR Advances":  the Loans (or any portions  thereof) at such time as they
(or such portions) are made and/or being  maintained at a rate of interest based
upon the Alternate Base Rate.

      "Accountants": Arthur Andersen LLP, or such other firm of certified public
accountants  of  recognized  national  standing  selected  by the  Borrower  and
reasonably satisfactory to the Required Lenders.

      "ACE": Arch  Communications  Enterprises,  Inc., which was merged into the
Borrower in the ACE Merger.

      "ACE  Merger":  the merger of ACE with and into the Borrower on the Second
Restatement Date.

      "ACE Subordinated Note": the subordinated  promissory note, dated June 29,
1998, made by ACE to Benbow Investments, the successor by merger to The Westlink
Company II.

      "Acquisition":  the  acquisition  of  a  Paging-Related  Business  by  the
Borrower or any of its Subsidiaries  through either a merger with another Person
or the purchase of all or  substantially  all of the Stock of another  Person or
all or  substantially  all of the assets of another  Person or of a division  of
another  Person,  which Person or division is in the paging business or a Paging
Related  Business  or which  assets  have been and are to be used in the  paging
business or a Paging Related Business.

      "Acquisition  Consideration":  with  respect to any  Acquisition,  the sum
(without duplication) of (i) the cash consideration paid or agreed to be paid in
connection  therewith,   plus  (ii)  the  fair  market  value  of  all  non-cash
consideration paid or agreed to be paid in connection  therewith,  plus (iii) an
amount equal to the  principal or stated  amount of all  liabilities  assumed or
incurred in connection therewith.

      "Additional  Benbow  Investments":  investments  by Benbow  Investments in
Benbow made after the Second Restatement Date in accordance with Section 8.6(l).

      "Adjusted  Indenture  Maturity  Date":  the earlier to occur of (i) if the
Arch 9 1/2%  Indenture  is in effect,  August 1, 2003,  and (ii) if the Arch 14%
Indenture is in effect, May 1, 2004.

      "Adjusted Net Cash  Proceeds":  with respect to any  Disposition as of any
date of  determination,  the amount equal to the difference  between (i) the Net
Sales  Proceeds  from such  Disposition,  and (ii) the  Reinvested  Proceeds  in
connection with such Disposition.

                                       2
<PAGE>

      "Administrative Agent": as defined in the preamble.

      "Advance":  an ABR Advance or a  Eurodollar  Advance,  as the case may be.

      "Affected Principal Amount": in the event that (i) the Borrower shall fail
for any reason to borrow,  convert or  continue  after the  Borrower  shall have
notified  the  Administrative  Agent of its intent to do so in any  instance  in
which the Borrower shall have requested a Eurodollar Advance, an amount equal to
the principal  amount of such requested  Eurodollar  Advance;  (ii) a Eurodollar
Advance  shall  terminate  for any reason  prior to the last day of the Interest
Period  applicable  thereto,  an amount  equal to the  principal  amount of such
Eurodollar Advance; and (iii) the Borrower shall prepay or repay all or any part
of the  principal  amount of a Eurodollar  Advance  prior to the last day of the
Interest Period applicable  thereto,  an amount equal to the principal amount of
such Eurodollar Advance so prepaid or repaid.

      "Affiliate":  as to any  Person,  any  other  Person  which,  directly  or
indirectly, is in control of, is controlled by, or is under common control with,
such Person. For purposes of this definition, control of a Person shall mean the
power,  direct or indirect,  (i) to vote 25% or more of the  securities or other
interests  having  ordinary  voting power for the election of directors or other
managing  Persons thereof or (ii) to direct or cause direction of the management
and policies of such Person whether by contract or otherwise.

      "Agents": collectively, the Bank Collateral Agent, BNY, in its capacity as
a Collateral  Agent, the Security Agent, the Managing Agents,  the Documentation
Agent, the Co-Documentation Agents, the Syndication Agent and the Administrative
Agent.

      "Aggregate Prepayment/Reduction Amount": as defined in Section 2.4.

      "Aggregate  Tranche A Commitments":  on any date, the sum of the Tranche A
Commitments on such date.

      "Aggregate  Tranche A Exposure":  at any time,  the  aggregate sum at such
time of the Tranche A Exposures of all Tranche A Lenders.

      "Aggregate  Tranche  B  Percentage":  on any  date of  determination,  the
percentage  equal to a fraction (i) the numerator of which is the sum of (1) the
aggregate outstanding principal amount of the Tranche B Loans on such date, plus
(2) (A)  prior to the  termination  (or  other  nonexistence)  of the  Aggregate
Tranche A Commitments, the Aggregate Tranche A Commitments on such date, and (B)
on and after the termination (or other  nonexistence) of the Aggregate Tranche A
Commitments,  the  Aggregate  Tranche  A  Exposure  on such  date,  and (ii) the
denominator of which is the sum of (1) the amount determined under clause (i) of
this  definition  on such date,  plus (2) the  aggregate  outstanding  principal
amount of the Tranche B-1 Loans on such date, plus (3) the aggregate outstanding
principal amount of the Tranche C Loans on such date.

      "Aggregate  Tranche B-1  Percentage":  on any date of determination on and
after the Merger  Effective  Date,  the  percentage  equal to a fraction (i) the


                                       3
<PAGE>

numerator of which is the aggregate  outstanding principal amount of the Tranche
B-1 Loans on such date and (ii) the  denominator  of which is the sum of (1) the
amount determined under clause (i) of this definition on such date, plus (2) the
aggregate  outstanding principal amount of the Tranche B Loans on such date plus
(3) the aggregate  outstanding  principal  amount of the Tranche C Loans on such
date,  plus (4) (A)  prior to the  termination  (or other  nonexistence)  of the
Aggregate  Tranche A  Commitments,  the Aggregate  Tranche A Commitments on such
date,  and (B) on and  after the  termination  (or  other  nonexistence)  of the
Aggregate Tranche A Commitments, the Aggregate Tranche A Exposure on such date.

      "Aggregate  Tranche  C  Percentage":  on any  date of  determination,  the
percentage  equal to a  fraction  (i) the  numerator  of which is the  aggregate
unpaid  principal  balance  of the  Tranche C Loans on such  date,  and (ii) the
denominator of which is the sum of (1) the amount determined under clause (i) of
this  definition  on such date,  plus (2) the  aggregate  outstanding  principal
amount of the Tranche B Loans on such date,  plus (3) the aggregate  outstanding
principal  amount of the Tranche  B-1 Loans on such date,  plus (4) (A) prior to
the termination (or other  nonexistence) of the Aggregate Tranche A Commitments,
the  Aggregate  Tranche  A  Commitments  on such  date and (B) on and  after the
termination (or other nonexistence) of the Aggregate Tranche A Commitments,  the
Aggregate Tranche A Exposure on such date.

      "Agreement": this Third Amended and Restated Credit Agreement.

      "Alternate  Base Rate": on any date, a rate of interest per annum equal to
the higher of (i) the  Federal  Funds Rate in effect on such date plus 1/2 of 1%
or (ii) the BNY Rate in effect on such date.

      "Amended PageNet Collateral Documents":  collectively, the Amended PageNet
Guaranty,  the Amended PageNet Pledge  Agreement,  the Amended PageNet  Security
Agreement,  the Amended PageNet  Intellectual  Property Security Agreement,  the
Parent  Guaranty  (PageNet)  and all  other  documents  executed  in  connection
therewith.

      "Amended PageNet Guaranty": as defined in Section 8.3(iv)(H).

      "Amended PageNet Intellectual Property Security Agreement":  as defined in
Section 8.3(iv)(H).

      "Amended PageNet Pledge Agreement": as defined in Section 8.3(iv)(H).

      "Amended PageNet Security Agreement": as defined in Section 8.3(iv)(H).

      "Annualized  Operating  Cash  Flow":  as to  any  Person  on any  date  of
determination, an amount equal to (i) Operating Cash Flow of such Person and its
Subsidiaries  (determined on a Consolidated  basis in accordance  with GAAP) for
the fiscal  quarter ending on such date or, if such date is not a fiscal quarter
ending date, the immediately preceding fiscal quarter, multiplied by (ii) four.

                                       4
<PAGE>

      "API Debt": at any date of  determination,  the sum of all Indebtedness of
the  Borrower  and its  Subsidiaries,  determined  on a  Consolidated  basis  in
accordance with GAAP.

      "API Leverage Ratio": at any date of determination,  the ratio of API Debt
to Annualized Operating Cash Flow of the Borrower.

      "Applicable Arch Indenture Trustees":  at any time, (i) if the Arch 9 1/2%
Indenture  is in effect  and has not been  satisfied,  defeased  or  discharged,
United  States Trust  Company of New York or its  successor as trustee under the
Arch 9 1/2%  Indenture,  and (ii) if the Arch 14% Indenture is in effect and has
not been satisfied,  defeased or discharged,  United States Trust Company of New
York or its successor as trustee under the Arch 14% Indenture.

      "Applicable Margin":
       -----------------

         (a) As to the Tranche A Loans, Tranche B Loans and Letters of Credit:

            (i) For the period from the Third  Restatement Date until the Merger
Effective Date and, if the Merger  Effective Date does not occur, for the period
on and after the Third  Restatement  Date,  at all times  during the  applicable
periods set forth below: (A) with respect to the unpaid principal amount thereof
consisting of ABR Advances,  the  applicable  percentage set forth opposite such
period in the  following  table under the heading  "ABR" and (B) with respect to
(x) the unpaid  principal amount thereof  consisting of Eurodollar  Advances and
(y) Letter of Credit Fees,  the  applicable  percentage  set forth opposite such
period in the following table under the heading "Eurodollar and LC Rate":

======================================== =========== ==========================
          PRICING LEVERAGE RATIO
---------------------------------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
Greater Than or Equal To    Less Than        ABR       Eurodollar and LC Rate
------------------------    ---------        ---       ----------------------
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
        4.50:1.00                           1.875%            3.125%
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
        4.00:1.00           4.50:1.00       1.500%            2.750%
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
        3.00:1.00           4.00:1.00       1.125%            2.375%
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
                            3.00:1.00       0.750%            2.000%
======================== =============== =========== ==========================

            (ii) For the period on and after the Merger  Effective  Date, at all
times during the  applicable  periods set forth  below:  (A) with respect to the
unpaid  principal  amount  thereof  consisting of ABR Advances,  the  applicable
percentage  set forth  opposite  such  period in the  following  table under the
heading "ABR" and (B) with respect to (x) the unpaid  principal  amount  thereof
consisting of Eurodollar  Advances and (y) Letter of Credit Fees, the applicable
percentage  set forth  opposite  such  period in the  following  table under the
heading "Eurodollar and LC Rate":

                                       5
<PAGE>

======================================== =========== ==========================
          PRICING LEVERAGE RATIO
---------------------------------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
Greater Than or Equal To    Less Than        ABR       Eurodollar and LC Rate
------------------------    ---------        ---       ----------------------
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
        3.50:1.00                          2.125%             3.375%
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
        3.00:1.00           3.50:1.00      1.875%             3.125%
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
        2.50:1.00           3.00:1.00      1.500%             2.750%
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
                            2.50:1.00      1.125%             2.375%
======================== =============== =========== ==========================

            (iii) Changes in the  Applicable  Margin  resulting from a change in
the Pricing Leverage Ratio, as set forth in a Compliance  Certificate  delivered
pursuant to Section 7.1(c)  evidencing such a change,  shall become effective on
the  second  Business  Day  following  the  delivery  by  the  Borrower  to  the
Administrative Agent of a new Compliance  Certificate pursuant to Section 7.1(c)
evidencing a change in the Pricing Leverage Ratio. If the Borrower shall fail to
deliver a  Compliance  Certificate  within 60 days  after the end of each of the
first three fiscal  quarters or 90 days after the end of the last fiscal quarter
as required by Section 7.1(c),  the Pricing Leverage Ratio,  solely for purposes
of  calculating  the Applicable  Margin,  shall be deemed to be greater than the
highest Pricing Leverage Ratio under the applicable table from and including the
date on which such  Compliance  Certificate  was required to be delivered to the
date of delivery to the Administrative Agent of such Compliance Certificate.

         (b) As to the Tranche B-1 Loans:

            (i) on and after the Merger  Effective Date, at all times during the
applicable  periods set forth below:  (A) with  respect to the unpaid  principal
amount thereof consisting of ABR Advances,  the applicable  percentage set forth
opposite such period in the following table under the heading "ABR" and (B) with
respect  to  the  unpaid  principal  amount  thereof  consisting  of  Eurodollar
Advances,  the  applicable  percentage  set forth  opposite  such  period in the
following table under the heading "Eurodollar Rate":

======================================== =========== ==========================
          PRICING LEVERAGE RATIO
---------------------------------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
Greater Than or Equal To    Less Than        ABR       Eurodollar and LC Rate
------------------------    ---------        ---       ----------------------
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
      3.50:1.00                             2.125%            3.375%
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
      3.00:1.00             3.50:1.00       1.875%            3.125%
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
      2.50:1.00             3.00:1.00       1.500%            2.750%
------------------------ --------------- ----------- --------------------------
------------------------ --------------- ----------- --------------------------
                            2.50:1.00       1.125%            2.375%
======================== =============== =========== ==========================

            (ii) Changes in the Applicable Margin resulting from a change in the
Pricing  Leverage  Ratio,  as set forth in a  Compliance  Certificate  delivered
pursuant to Section 7.1(c)  evidencing such a change,  shall become effective on
the  second  Business  Day  following  the  delivery  by  the  Borrower  to  the
Administrative Agent of a new Compliance  Certificate pursuant to Section 7.1(c)
evidencing a change in the Pricing Leverage Ratio. If the Borrower shall fail to
deliver a  Compliance  Certificate  within 60 days  after the end of each of the
first three fiscal  quarters or 90 days after the end of the last fiscal quarter
as required by Section 7.1(c),  the Pricing Leverage Ratio,  solely for purposes
of  calculating  the  Applicable  Margin,  shall be  deemed to be  greater  than
3.50:1.00 from and including the date on which such  Compliance  Certificate was


                                       6
<PAGE>

required to be delivered to the date of delivery to the Administrative  Agent of
such Compliance Certificate.

         (c) As to the  Tranche C Loans,  with  respect to the unpaid  principal
amount  thereof  consisting  of ABR  Advances,  5.625%,  and with respect to the
unpaid principal amount thereof consisting of Eurodollar Advances, 6.875%.

      "Applicable  Proceeds":  any and all  proceeds  of casualty  insurance  or
condemnation held by the Administrative  Agent pursuant to the Loan Documents in
connection  with a casualty or  condemnation  event for which the conditions for
use  thereof  by the  Borrower  or any  Subsidiary,  as set  forth  in the  Loan
Documents, shall not have been satisfied.

      "Appropriate Party": at any time:

         (a) from and after the Third  Restatement Date and prior to the earlier
to  occur of the  Merger  Effective  Date  and the  Existing  Arch  Senior  Note
Termination   Date,   (i)  if  the  Springing   Sections  of  the  Security  and
Intercreditor Agreement are not then effective, the Escrow Agent, or (ii) if the
Springing  Sections  of  the  Security  and  Intercreditor  Agreement  are  then
effective, the Security Agent;

         (b) on and after the earlier to occur of the Merger  Effective Date and
the Existing Arch Senior Note Termination Date, the Security Agent.

      "Arch":  Arch   Communications,   Inc.,  a  Delaware   corporation  and  a
wholly-owned Subsidiary of the Parent.

      "Arch Guaranty": the Amended and Restated Arch Guaranty,  substantially in
the form of Exhibit I.

      "Arch 14%  Indenture":  the  Indenture,  dated as of  December  15,  1994,
between Arch and United  States Trust Company of New York or its  successor,  as
trustee, pursuant to which Arch issued the Arch 14% Senior Notes.

      "Arch 14%  Senior  Notes":  the 14% Senior  Notes due 2004  issued by Arch
pursuant to the Arch 14% Indenture.

      "Arch Indentures": collectively, the Existing Arch Indentures, the Arch 12
3/4%  Indenture,  the Arch 13 3/4% Indenture and any  Replacement  Indenture (if
existing).

      "Arch 9 1/2%  Indenture":  the  Indenture,  dated as of  February 7, 1994,
between Arch and United  States Trust Company of New York or its  successor,  as
trustee, pursuant to which Arch issued the Arch 9 1/2% Senior Notes.

      "Arch 9 1/2% Senior  Notes":  the 9 1/2%  Senior  Notes due 2004 issued by
Arch pursuant to the Arch 9 1/2% Indenture.

                                       7
<PAGE>

      "Arch Senior  Notes":  collectively,  the Existing Arch Senior Notes,  the
Arch 12 3/4% Senior  Notes,  the Arch 13 3/4% Senior  Notes and any  Replacement
Notes (if existing).

      "Arch 13 3/4%  Indenture":  the  Indenture,  dated  as of  April 9,  1999,
between  Arch (as  successor by merger to Arch Escrow  Corp.) and IBJ  Whitehall
Bank & Trust Company or its successor, as trustee, pursuant to which Arch issued
the Arch 13 3/4% Senior Notes.

      "Arch 13 3/4% Senior  Notes":  the 13 3/4% Senior Notes due 2008 issued by
Arch pursuant to the Arch 13 3/4% Indenture.

      "Arch 12 3/4%  Indenture":  the  Indenture,  dated  as of June  29,  1998,
between Arch and U.S.  Bank Trust  National  Association  or its  successor,  as
trustee, pursuant to which Arch issued the Arch 12 3/4% Senior Notes.

      "Arch 12 3/4% Senior  Notes":  the 12 3/4% Senior Notes due 2007 issued by
Arch pursuant to the Arch 12 3/4% Indenture.

      "Assignment  and  Acceptance  Agreement":  an  assignment  and  acceptance
agreement, substantially in the form of Exhibit E.

      "Bank  Collateral  Agent":  BNY, in its capacity as collateral agent under
the Borrower Pledge Agreement,  the Restricted Subsidiary Security Agreement and
the Amended PageNet Collateral Documents.

      "Bankruptcy Court": the United States Bankruptcy Court for the District of
Delaware.

      "Bankruptcy  Proceeding":  in the event of the commencement by PageNet and
one or more of its  Subsidiaries  of a bankruptcy  proceeding as contemplated by
the Merger  Agreement,  the  proceeding  to be entitled In re:  Paging  Network,
Inc. et al. in the Bankruptcy Court.

      "Benbow": Benbow PCS Ventures, Inc., a California corporation.

      "Benbow  Guaranty  Date":  the earlier to occur of (i) the  Existing  Arch
Senior Note Termination Date and (ii) the date on which the last to occur of the
following  events  has  occurred:   (A)  Benbow  Investments  ceases  to  be  an
Unrestricted  Subsidiary  under  and as  defined  in each of the  Existing  Arch
Indentures,  (B) the  consummation  of the  pending  purchase  of  June  Walsh's
interest  in Benbow and (C) the  redemption  of the  Benbow  Stock  received  by
Adelphia Communications Corporation pursuant to the Page Call Purchase Agreement
has been consummated.

      "Benbow Investments": Benbow Investments, Inc., a Delaware corporation and
a wholly-owned Subsidiary of the Borrower.

      "Benbow Purchase Agreement":  the Purchase Agreement, dated as of June 24,
1999, between Benbow Investments, Benbow and June Walsh.

                                       8
<PAGE>

      "BNY": The Bank of New York.

      "BNY  Rate":  a rate of  interest  per annum equal to the rate of interest
publicly  announced  in New  York  City by BNY  from  time to time as its  prime
commercial lending rate, such rate to be adjusted automatically (without notice)
on the effective date of any change in such publicly announced rate.

      "Board of Governors": the Board of Governors of the Federal Reserve System
of the United States.

      "Borrower": as defined in the preamble.

      "Borrower  Obligations":  collectively,  (i)  all of the  obligations  and
liabilities  of the  Borrower to any Agent,  the Letter of Credit  Issuer or any
Lender (or, in the case of any Secured Hedging Arrangement, any Affiliate of any
Lender),  whether direct or indirect,  absolute or contingent,  due or to become
due,  now existing or hereafter  incurred,  which may arise under,  out of or in
connection with the Loan Documents and, on and after the Merger  Effective Date,
in respect of Existing  PageNet  Letters of Credit,  in each case whether fixed,
contingent,  now existing or hereafter arising,  created,  assumed,  incurred or
acquired,  and whether  before or after the  occurrence  of any Event of Default
under Section 9.1(h) or (i) and including any obligation or liability in respect
of any breach of any  representation or warranty and all post-petition  interest
and funding losses,  whether or not allowed as a claim in any proceeding arising
in connection with such an event.

      "Borrower  Pledge  Agreement":  the Amended and Restated  Borrower  Pledge
Agreement, substantially in the form of Exhibit G.

      "Business  Day":  for all purposes  other than as set forth in clause (ii)
below, (i) any day other than a Saturday,  a Sunday or a day on which commercial
banks  located  in New York  City are  authorized  or  required  by law or other
governmental  action  to  close  and  (ii)  with  respect  to  all  notices  and
determinations  in connection  with,  and payments of principal and interest on,
Eurodollar  Advances,  any day which is a Business  Day  described in clause (i)
above and which is also a day on which dealings in foreign currency and exchange
and Eurodollar funding between banks may be carried on in London, England.

      "Canadian  Agent":   The   Toronto-Dominion   Bank,  in  its  capacity  as
administrative agent under the PageNet Canadian Loan Documents, or its successor
as such administrative agent.

      "Capital  Expenditures":  any expenditures made or costs incurred that are
required or permitted to be  capitalized  for  financial  reporting  purposes in
accordance with GAAP other than deferred financing fees.

      "Capital Leases":  leases that are required or permitted to be capitalized
for financial reporting purposes in accordance with GAAP.



                                       9
<PAGE>

      "Cash  Interest  Expense":  for any period,  the sum of (i) cash  interest
expense on Total Debt  (adjusted to give effect to all Interest Rate  Protection
Agreements  (including  Interest  Hedge  Agreements  (as defined in the Existing
PageNet  Credit  Agreement)  which are  assumed  by the  Borrower)  and fees and
expenses paid in connection  with the same, all as determined in accordance with
GAAP) during such period as determined in accordance  with GAAP, (ii) Commitment
Fees,  Letter of Credit Fees and fees in respect of Existing  PageNet Letters of
Credit during such period and (iii)  without  duplication,  Restricted  Payments
made to the Parent during such period to the extent made to enable the Parent to
satisfy its interest obligations under the Parent Discount Notes Indenture.

      "Change in Law": (i) the adoption of any law, rule or regulation after the
Relevant Date, (ii) the issuance or promulgation  after the Relevant Date of any
directive,  guideline  or request  from any  Governmental  Body  (whether or not
having the force of law),  or (iii) any change  after the  Relevant  Date in the
interpretation of any existing law, rule,  regulation,  directive,  guideline or
request by any Governmental Body charged with the administration thereof.

      "Change of  Control":  any change of  control,  fundamental  change or any
similar  circumstance  which,  under  any of the  Arch  Indentures,  the  Parent
Discount Notes Indenture, the Parent Subordinated Indenture or the documentation
evidencing or governing any other  Indebtedness  of the Parent of $15,000,000 or
more,  results in an  obligation  of the Parent to  prepay,  purchase,  offer to
purchase, redeem or defease such Indebtedness.

      "Class":  with  respect to (i) the  Lenders,  the  Tranche A Lenders,  the
Tranche B Lenders,  the Tranche  B-1 Lenders or the Tranche C Lenders,  and (ii)
the Loans,  the Tranche A Loans,  the Tranche B Loans,  the Tranche B-1 Loans or
the Tranche C Loans.

      "Code": the Internal Revenue Code of 1986, as the same may be amended from
time to time, or any successor  thereto,  and the rules and  regulations  issued
thereunder, as from time to time in effect.

      "Co-Documentation Agents": as defined in the preamble.

      "Collateral":  collectively,  the  collateral  under and as defined in the
Collateral Documents.

      "Collateral Agents":  collectively,  (i) BNY in its capacity as collateral
agent for the Lenders  under the Security and  Intercreditor  Agreement and (ii)
the Applicable Arch Indenture  Trustees in their capacities as collateral agents
for the Existing Arch Senior  Noteholders  under the Security and  Intercreditor
Agreement.

      "Collateral Documents": collectively:

         (i) for the  period  from the Third  Restatement  Date until the Merger
Effective Date and, if the Merger  Effective Date does not occur, for the period
on and after the Third Restatement Date, (x) the Borrower Pledge Agreement,  the


                                       10
<PAGE>

Subsidiary  Guaranty,  the Arch Guaranty,  the Parent  Guaranty,  the Restricted
Subsidiary  Security  Agreement,  each  Secured  Hedging  Agreement,  the Escrow
Agreement,  and  the  Powers  of  Attorney,  (y)  upon  the  declaration  of the
effectiveness  thereof pursuant to Section 7.18, the Security and  Intercreditor
Agreement,  and (z) all other  instruments and documents  delivered  pursuant to
Section 7.18 or 7.19 to secure any of the Obligations; and

         (ii) on and after the Merger  Effective  Date, (x) the Borrower  Pledge
Agreement,  the Subsidiary Guaranty, the Arch Guaranty, the Parent Guaranty, the
Restricted  Subsidiary  Security  Agreement,   the  Amended  PageNet  Collateral
Documents,  the  Security and  Intercreditor  Agreement,  each  Secured  Hedging
Agreement,  and  the  Powers  of  Attorney  and (y) all  other  instruments  and
documents  delivered  pursuant  to  Section  7.18 or 7.19 to  secure  any of the
Obligations.

      "Commitment":  as to (i) any  Tranche A Lender,  such  Tranche A  Lender's
Tranche A Commitment and (ii) the Letter of Credit Issuer,  its Letter of Credit
Commitment.

      "Commitment Fee": as defined in Section 3.2(a).

      "Commitment Fee Percentage":

         (a) For the  period  from the Third  Restatement  Date until the Merger
Effective Date and, if the Merger  Effective Date does not occur, for the period
on and after the Third  Restatement  Date,  at all times  during the  applicable
periods set forth below,  the  applicable  percentage  set forth  opposite  such
period in the following table:

================================================== ==========================
                          Period                          Percentage
-------------------------------------------------- --------------------------
-------------------------------------------------- --------------------------
when the Pricing Leverage Ratio is greater than
or equal to 4.00:1.00                                       0.5000%
-------------------------------------------------- --------------------------
-------------------------------------------------- --------------------------
when the Pricing Leverage Ratio is less than
4.00:1.00                                                   0.3750%
================================================== ==========================


         (b) On and after the Merger  Effective  Date,  at all times  during the
applicable periods set forth below, the applicable percentage set forth opposite
such period in the following table:

================================================== ==========================
                          Period                          Percentage
-------------------------------------------------- --------------------------
-------------------------------------------------- --------------------------
when the Pricing Leverage Ratio is greater than
or equal to 3.00:1.00                                       1.00%
-------------------------------------------------- --------------------------
-------------------------------------------------- --------------------------
when the Pricing Leverage Ratio is less than
3.00:1.00                                                   0.75%
================================================== ==========================

         (c) Changes in the Commitment Fee Percentage resulting from a change in
the Pricing Leverage Ratio, as set forth in a Compliance  Certificate  delivered
pursuant to Section 7.1(c)  evidencing such a change,  shall become effective on
the  second  Business  Day  following  the  delivery  by  the  Borrower  to  the


                                       11
<PAGE>

Administrative Agent of a new Compliance  Certificate pursuant to Section 7.1(c)
evidencing a change in the Pricing Leverage Ratio. If the Borrower shall fail to
deliver a  Compliance  Certificate  within 60 days  after the end of each of the
first three fiscal  quarters or 90 days after the end of the last fiscal quarter
as required by Section 7.1(c),  the Pricing Leverage Ratio,  solely for purposes
of calculating the Commitment Fee Percentage, shall be deemed to be greater than
the highest Pricing Leverage Ratio under the applicable table from and including
the date on which such  Compliance  Certificate  was required to be delivered to
the date of delivery to the Administrative Agent of such Compliance Certificate.

      "Commitment  Period": the period from the Third Restatement Date until the
Business Day immediately preceding the Tranche A Maturity Date.

      "Commonly  Controlled  Entity":  an entity,  whether or not  incorporated,
which is under common  control with Arch or any of its  Subsidiaries  within the
meaning of Section 414(b) or 414(c) of the Code.

      "Communications  Act": the Communications Act of 1934, as amended, and the
rules and regulations issued thereunder, as from time to time in effect.

      "Compliance  Certificate":  a  certificate  substantially  in the  form of
Exhibit D.

      "Confirmation  Order":  the order of the Bankruptcy  Court  confirming the
Plan of Reorganization.

      "Confidential Information": as defined in Section 11.13.

      "Consolidated":   with  respect  to  any  Person,   such  Person  and  its
Subsidiaries taken together.

      "Consolidated  Total  Assets":  at any date of  determination,  the  total
assets of the Borrower and its Subsidiaries  determined on a Consolidated  basis
in accordance with GAAP as at such date.

      "Consolidating":  each of the Borrower and each of its Subsidiaries  taken
separately.

      "Contingent  Obligation":  as to any Person, any obligation of such Person
guaranteeing or in effect  guaranteeing any Indebtedness,  leases,  dividends or
other  obligations  ("primary  obligations")  of any other Person (the  "primary
obligor")  in  any  manner,  whether  directly  or  indirectly,   including  any
obligation of such Person,  whether or not contingent,  (a) to purchase any such
primary  obligation  or any Property  constituting  direct or indirect  security
therefor,  (b) to advance or supply funds (i) for the purchase or payment of any
such primary obligation or (ii) to maintain working capital or equity capital of
the  primary  obligor or  otherwise  to  maintain  net worth,  solvency or other
financial statement condition of the primary obligor,  (c) to purchase Property,
securities or services  primarily for the purpose of assuring the beneficiary of
any such  primary  obligation  of the  ability  of the  primary  obligor to make


                                       12
<PAGE>

payment of such primary  obligation  or (d)  otherwise  to assure,  protect from
loss, or hold harmless the beneficiary of such primary  obligation  against loss
in respect thereof; provided, however, that the term Contingent Obligation shall
not include the  indorsement  of  instruments  for deposit or  collection in the
ordinary course of business.  The term Contingent  Obligation shall also include
the liability of a general partner in respect of the recourse liabilities of the
partnership  in which it is a general  partner.  The  amount  of any  Contingent
Obligation  of a Person  shall be deemed to be an amount  equal to the stated or
determinable  amount  of  the  primary  obligation  in  respect  of  which  such
Contingent  Obligation  is made or, if not stated or  determinable,  the maximum
reasonably anticipated liability in respect thereof as determined by such Person
in good faith.

      "Conversion/Continuation Date": the date on which (i) a Eurodollar Advance
is  converted  to an ABR  Advance,  (ii) the date on  which  an ABR  Advance  is
converted  to a  Eurodollar  Advance  or (iii)  the  date on which a  Eurodollar
Advance is continued as a new Eurodollar Advance.

      "Credit Extension Date": any Business Day specified in a Credit Request as
a day on which the Borrower requests (i) the Tranche A Lenders to make Tranche A
Loans or (ii) the Letter of Credit Issuer to issue a Letter of Credit.

      "Credit Party": an Agent, the Letter of Credit Issuer,  the PageNet Letter
of Credit Issuer or a Lender, as the case may be. Notwithstanding the foregoing,
neither the PageNet Letter of Credit Issuer nor any Existing PageNet Lender will
be a Credit Party until the Merger  Effective  Date and then only if the PageNet
Letter of Credit Issuer or such  Existing  PageNet  Lender,  as the case may be,
shall have executed and delivered the Joinder and Assumption Agreement.

      "Credit  Request":  a  request  for  Tranche A Loans or a Letter of Credit
substantially in the form of Exhibit B.

      "Default":  any of the events  specified  in Article 9, whether or not any
requirement  for the giving of notice,  the lapse of time, or both, or any other
condition, has been satisfied.

      "DIP  Facility":  in the  event  of  the  commencement  of the  Bankruptcy
Proceeding,  any debtor in possession financing facility extended by one or more
lenders to PageNet and its Subsidiaries which are debtors in such proceeding.

      "DIP  Loan  Documents":   collectively,   all  documents  and  instruments
evidencing,  setting forth the terms of, and  implementing  the terms of the DIP
Facility.

      "Disposition": as defined in Section 8.8(c).

      "Distributed  Subsidiary":  VAST Solutions,  Inc., a Delaware  corporation
and, prior to the Spin-Off, a wholly-owned Subsidiary of PageNet.

      "Documentation Agent": as defined in the preamble.



                                       13
<PAGE>

      "Dollars" and "$": lawful currency of the United States.

      "Domestic Subsidiary": any Subsidiary that is not a Foreign Subsidiary.

      "Dropdown": the contribution, directly or indirectly, of all of the issued
and outstanding Stock of PageNet by the Parent to the Borrower.

      "Eligible  Institution":  (i) any commercial bank, trust company,  banking
association,  insurance company,  financial institution,  mutual fund or pension
fund  acceptable to the  Administrative  Agent and the Letter of Credit  Issuer,
(ii) any Lender or any Affiliate or Subsidiary  thereof, or (iii) any commercial
bank, trust company, mutual fund or banking association having undivided capital
surplus and retained earnings exceeding $100,000,000.

      "Environmental  Laws": any and all federal,  state and local laws relating
to the environment,  the use, storage,  transporting,  manufacturing,  handling,
discharge, disposal or recycling of hazardous substances, hazardous materials or
pollutants   or  industrial   hygiene  and   including  (i)  the   Comprehensive
Environmental  Response,  Compensation  and Liability  Act, as amended,  42 USCA
ss.9601 et seq. ("CERCLA");  (ii) the Resource  Conservation and Recovery Act of
1976, as amended,  42 USCA ss.6901 et seq.;  (iii) the Toxic  Substance  Control
Act, as amended,  15 USCA ss.2601 et seq.; (iv) the Water Pollution Control Act,
as amended,  33 USCA ss.1251 et seq.; (v) the Clean Air Act, as amended, 42 USCA
ss.7401 et seq.; (vi) the Hazardous Material  Transportation Act, as amended, 49
USCA  ss.1801  et seq.  and (vii) all  rules,  regulations  judgments,  decrees,
injunctions and restrictions thereunder and any analogous state law.

      "ERISA":  the Employee  Retirement Income Security Act of 1974, as amended
from time to time, and the rules and regulations issued thereunder, as from time
to time in effect.

      "Escrow  Agent":  The Bank of New York Trust Company of Florida,  N.A., or
its successor as escrow agent under the Escrow Agreement.

      "Escrow Agreement":  the Second Amended and Restated Escrow Agreement,  in
substantially the form of Exhibit P.

      "Eurodollar Advances":  collectively,  the Loans (or any portions thereof)
at such time as they (or such  portions)  are made and/or being  maintained at a
rate of interest based upon the Eurodollar  Rate. Each Eurodollar  Advance shall
mature on the last day of the Interest Period applicable thereto.

      "Eurodollar  Rate":  with respect to the Interest Period applicable to any
Eurodollar  Advance,  a  rate  of  interest  per  annum,  as  determined  by the
Administrative  Agent,  obtained by dividing  (and then  rounding to the nearest
1/16 of 1% or, if there is no nearest  1/16 of 1%,  then to the next higher 1/16
of 1%):

         (a) the rate, as reported by BNY to the Administrative Agent, quoted by
BNY to leading banks in the interbank eurodollar market as the rate at which BNY
is offering  Dollar deposits in an amount equal  approximately  to its Specified


                                       14
<PAGE>

Percentage of the Eurodollar  Advance to which such Interest  Period shall apply
for a period  comparable to such  Interest  Period,  as quoted at  approximately
11:00 a.m. two Business Days prior to the first day of such Interest Period, by

         (b) a number  equal to 1.00  minus  the  aggregate  of the then  stated
maximum rates during such Interest Period of all reserve requirements (including
marginal, emergency, supplemental and special reserves), expressed as a decimal,
established  by the Board of Governors and any other banking  authority to which
BNY and other major United States money center banks are subject,  in respect of
eurocurrency  funding  (currently  referred to as "Eurocurrency  liabilities" in
Regulation D). Such reserve  requirements shall include those imposed under such
Regulation D.  Eurodollar  Advances  shall be deemed to constitute  Eurocurrency
liabilities  and  as  such  shall  be  deemed  to be  subject  to  such  reserve
requirements  without  benefit of credits for  proration,  exceptions or offsets
which may be available from time to time to any Lender under such  Regulation D.
The Eurodollar Rate shall be adjusted  automatically  on and as of the effective
date of any change in any such reserve requirement.

      "Event of Default":  any of the events  specified  in Article 9,  provided
that any  requirement  for the giving of notice,  the lapse of time, or both, or
any other condition, has been satisfied.

      "Excess Cash Flow":  with respect to any fiscal year,  Operating Cash Flow
of the Borrower for such fiscal year less the sum of,  without  duplication  (i)
the  amount,  if  positive,  equal  to (a) the  amount  of the  Tranche  A Loans
outstanding at the beginning of such fiscal year minus (b) the Aggregate Tranche
A  Commitments  at the  end of  such  fiscal  year  (without  giving  effect  to
reductions thereof during such period required by Section 2.3(d)), (ii) payments
of the principal of the Tranche B Loans, the Tranche B-1 Loans and the Tranche C
Loans during such fiscal year (other than mandatory prepayments thereof required
by Section 2.4), (iii) scheduled  payments of principal of other Indebtedness of
the  Borrower  and its  Subsidiaries  on a  Consolidated  basis made during such
fiscal year (including  Indebtedness in respect of Capital Leases), (iv) Capital
Expenditures  made by the Borrower and its Subsidiaries on a Consolidated  basis
during such fiscal year, (v) without  duplication,  taxes and payments under the
Tax Sharing  Agreement paid by the Borrower and its  Subsidiaries in cash during
such period, and (vi) Cash Interest Expense for such fiscal year.

      "Exchange Act": the Securities  Exchange Act of 1934, as amended,  and the
rules and regulations promulgated thereunder.

      "Exchange Documents": collectively, the Registration Statement on Form S-4
filed by PageNet with the SEC on January 11, 2000,  the Proxy  Statement on Form
S-4  filed  by the  Parent  with  the  SEC on  January  28,  2000,  the  Consent
Solicitation  on Form S-4 filed by the Parent with the SEC on January 28,  2000,
the  Noteholder  Consents  and all other  documents  executed  and  delivered in
connection with the Exchange Offers.

      "Exchange Offers": collectively, the PageNet Exchange Offer and the Parent
Exchange Offer.



                                       15
<PAGE>

      "Excluded Tax": as to any Person,  a Tax which Tax (a) is an income tax or
franchise  tax  imposed on all or part of the net income or net  profits of such
Person or represents interest,  fees or penalties for payment of any such income
tax or franchise tax and which is imposed by one of the following  jurisdictions
or by any political  subdivision  or taxing  authority  thereof:  (i) the United
States,  (ii) the  jurisdiction  in which such  Person is  organized,  (iii) the
jurisdiction in which such Person's principal office is located, and (iv) in the
case of each Credit Party, any jurisdiction in which such Credit Party is deemed
to be doing  business,  and (b) in the case of any Foreign  Credit  Party,  is a
withholding  tax that is imposed on amounts payable to such Foreign Credit Party
at the time such Foreign  Credit Party  becomes a party to this  Agreement or is
attributable  to such  Foreign  Credit  Party's  failure to comply with  Section
3.6(c).

      "Existing  API  Collateral":  the  Collateral  under and as defined in the
Parent  Guaranty,  the Borrower Pledge  Agreement and the Restricted  Subsidiary
Security Agreement.

      "Existing API Credit Agreements": as defined in Recital A.

      "Existing API  Lenders":  collectively,  the Tranche A Lenders,  Tranche B
Lenders and Tranche C Lenders.

      "Existing Arch  Indentures":  collectively,  the Arch 9 1/2% Indenture and
the Arch 14% Indenture.

      "Existing  Arch  Senior  Noteholders":  collectively,  the  holders of the
Existing Arch Senior Notes.

      "Existing  Arch Senior  Notes":  collectively,  (i) the Arch 9 1/2% Senior
Notes and (ii) the Arch 14% Senior Notes.

      "Existing Arch Senior Note Termination Date": the first date on which none
of the Existing Arch Senior Notes remain outstanding and neither of the Existing
Arch Indentures is in effect. For purposes of this definition, the Existing Arch
Senior Notes issued under an Existing Arch  Indenture  shall no longer be deemed
to be outstanding  and such Existing Arch Indenture shall no longer be deemed to
be in effect if Arch has  elected  in  accordance  with the  provisions  of such
Existing  Arch  Indenture  to have the  defeasance  and  discharge  or  covenant
defeasance  provisions  thereof  apply and has  complied  with the  requirements
thereof.

      "Existing Intercompany Notes": collectively,  the Intercompany Notes, each
dated May 16, 1995,  made by each of the following to the Parent:  the Borrower,
Arch Capitol District, Inc., Arch Connecticut Valley, Inc., Arch Michigan, Inc.,
Arch Communications Services, Inc., Arch Southeast Communications,  Inc., Becker
Beeper, Inc., The Beeper Company of America, Inc., BTP Acquisition  Corporation,
Groome Enterprises, Inc., and ProPage Acquisition Corporation.

      "Existing PageNet Collateral":  the Collateral under and as defined in the
Existing  PageNet  Collateral  Documents  securing  the  Indebtedness  under the
Existing PageNet Loan Documents  outstanding on the Merger Effective Date to the


                                       16
<PAGE>

extent such Collateral exists at the time of the PageNet Merger and the security
interest  therein was in effect prior to the Merger  Effective  Time.

      "Existing PageNet Collateral Documents":  collectively,  (i) the Guaranty,
dated as of May 2, 1995, made by PageNet of the obligations of the Companies (as
defined  in the  Existing  PageNet  Credit  Agreement),  (ii)  the  Confirmation
Agreement,  dated as of June 5, 1996, made by PageNet and its Subsidiaries party
thereto for the benefit of the Existing PageNet  Lenders,  (iii) the Amended and
Restated  Security  Agreement,  dated as of May 2, 1995, made by PageNet and the
other Companies (as defined in the Existing  PageNet Credit  Agreement) in favor
of  Bank  of  America,   N.A.   (formerly,   NationsBank  of  Texas,  N.A.),  as
Documentation  Agent and as an Existing  PageNet Lender,  TD, as  Administrative
Agent and as an Existing PageNet Lender,  BankBoston,  N.A. (formerly, The First
National Bank of Boston),  as Managing Agent and as an Existing  PageNet Lender,
and the other Existing PageNet Lenders,  (iv) the Intellectual Property Security
Agreement, dated as of May 2, 1995, made by PageNet in favor of Bank of America,
N.A.  (formerly,  NationsBank of Texas,  N.A.), as Documentation Agent and as an
Existing PageNet Lender, TD, as Administrative  Agent and as an Existing PageNet
Lender,  BankBoston,  N.A.  (formerly,  The First  National Bank of Boston),  as
Managing Agent and as an Existing PageNet Lender, and the other Existing PageNet
Lenders,  (v)  the  Guaranty,  dated  as of June 5,  1996,  made by the  PageNet
Subsidiaries  party thereto of each Paging Entities'  Obligations (as defined in
the Existing  PageNet  Credit  Agreement),  (vi) the Second Amended and Restated
Company Collateral Pledge Agreement,  dated as of January 31, 1999, entered into
by PageNet  for the  benefit of Bank of America,  N.A.  (formerly,  NationsBank,
N.A.),  as  Documentation  Agent  and as an  Existing  PageNet  Lender,  TD,  as
Administrative  Agent  and  as an  Existing  PageNet  Lender,  BankBoston,  N.A.
(formerly,  The First  National  Bank of Boston),  as  Managing  Agent and as an
Existing  PageNet  Lender,  and the other Existing  PageNet  Lenders,  (vii) the
Guaranty,  dated as of November  11,  1994,  made by Paging  Network of Northern
California,  Inc., Paging Network Canadian Holdings,  Inc. and Paging Network of
Virginia,  Inc. of the obligations of PageNet under the Existing  PageNet Credit
Agreement, (viii) the Security Agreement, dated as of November 11, 1994, made by
Paging Network of Northern  California,  Inc., Paging Network Canadian Holdings,
Inc.  and Paging  Network of  Virginia,  Inc. in favor of Bank of America,  N.A.
(formerly,   NationsBank  of  Texas,  N.A.),  as  Documentation  Agent,  TD,  as
Administrative  Agent,  BankBoston,  N.A. (formerly,  The First National Bank of
Boston), as Managing Agent, and the Existing PageNet Lenders, (ix) the Guaranty,
dated as of December 2, 1994, made by Paging Network International,  Inc. of the
obligations  of PageNet under the Existing  PageNet  Credit  Agreement,  (x) the
Security  Agreement,  dated as of  December  2,  1994,  made by  Paging  Network
International,  Inc. in favor of Bank of America, N.A. (formerly, NationsBank of
Texas, N.A.), as Documentation Agent, TD, as Administrative  Agent,  BankBoston,
N.A.  (formerly,  The First National Bank of Boston), as Managing Agent, and the
Existing PageNet Lenders, (xi) the Guaranty, dated as of April 15, 1993, made by
the  Subsidiaries of PageNet party thereto of the obligations of PageNet,  (xii)
the Guaranty, dated as of January 31, 1999, made by PageNet, Inc. of each Paging
Entities' Obligations (as defined in the Existing PageNet Credit Agreement), and
(xiii) the Security  Agreement,  dated as of January 31, 1999,  made by PageNet,
Inc.  in  favor of Bank of  America,  N.A.  (formerly,  NationsBank,  N.A.),  as
Documentation  Agent and as an Existing  PageNet Lender,  TD, as  Administrative
Agent and as an Existing PageNet Lender,  BankBoston,  N.A. (formerly, The First


                                       17
<PAGE>

National Bank of Boston),  as Managing Agent and as an Existing  PageNet Lender,
and the other Existing PageNet Lenders.

      "Existing  PageNet  Credit  Agreement":  the Second  Amended and  Restated
Credit  Agreement,  dated as of June 5, 1996,  among PageNet,  its  Subsidiaries
party  thereto,  the PageNet  Lenders,  the  Co-Agents  party  thereto,  Bank of
America,  N.A. (formerly,  NationsBank of Texas, N.A.), as Documentation  Agent,
TD, as Administrative Agent, BankBoston, N.A. (formerly, The First National Bank
of Boston) and Chase  Securities,  Inc., as Co-Syndication  Agents,  and Bank of
Montreal,  First Union  National Bank  (formerly,  First Union  National Bank of
North Carolina), Mercantile Bank National Association (formerly, Mercantile Bank
of  St.  Louis  National   Association),   The  Mitsubishi   Trust  and  Banking
Corporation, Chicago Branch and Societe Generale, as Lead Managers.

      "Existing PageNet  Documentation  Agent": Bank of America, N.A. (formerly,
NationsBank  of Texas,  N.A.) in its capacity as  documentation  agent under the
Existing PageNet Credit Agreement.

      "Existing  PageNet  Lenders":  the lenders  party to the Existing  PageNet
Credit Agreement.

      "Existing PageNet Letters of Credit":  the letters of credit issued by the
PageNet Letter of Credit Issuer under the Existing  PageNet Credit Agreement and
outstanding on the Merger Effective Date.

      "Existing  PageNet Loan  Documents":  collectively,  the Existing  PageNet
Credit Agreement and the Existing PageNet Collateral Documents.

      "Existing  PageNet Loans":  the loans  outstanding on the Merger Effective
Date under the Existing PageNet Credit Agreement.

      "Existing  Parent  Intercompany  Notes":  collectively,  the  Intercompany
Notes, each dated May 16, 1995, made by the Parent to each of the Borrower, Arch
Connecticut  Valley, Inc. and Arch  Communications  Enterprises,  LLC (formerly,
Arch Michigan, Inc. and successor by merger to Arch Capitol District, Inc., Arch
Communications  Services,  Inc.,  Arch Southeast  Communications,  Inc.,  Becker
Beeper, Inc., The Beeper Company of America, Inc., BTP Acquisition  Corporation,
Groome Enterprises, Inc., and ProPage Acquisition Corporation).

      "Existing Tranche A and Tranche C Credit Agreement": as defined in Recital
A.

      "Existing Tranche B Credit Agreement": as defined in Recital A.

      "Extensions of Credit": collectively, the Loans, the Letters of Credit and
any participations therein pursuant to Section 2.6(c).

      "FCC": the Federal  Communications  Commission,  or any Governmental  Body
succeeding to the functions thereof.



                                       18
<PAGE>

      "Federal  Funds  Rate":  for any day,  a rate per  annum  (expressed  as a
decimal,  rounded upwards, if necessary,  to the next higher 1/100 of 1%), equal
to the weighted  average of the rates on overnight  federal  funds  transactions
with members of the Federal  Reserve System arranged by federal funds brokers on
such day, as published  by the Federal  Reserve Bank of New York on the Business
Day next succeeding  such day,  provided that (i) if the day for which such rate
is to be  determined  is not a Business Day, the Federal Funds Rate for such day
shall be such rate on such transactions on the next preceding Business Day as so
published on the next  succeeding  Business Day, and (ii) if such rate is not so
published  for any day, the Federal Funds Rate for such day shall be the average
of the  quotations  for such day on such  transactions  as determined by BNY and
reported to the Administrative Agent.

      "Fees": is defined in Section 2.9(a)(i).

      "Final Order": as to any court,  administrative  agency or other tribunal,
an order or judgment of such  tribunal as entered on its docket,  which order or
judgment shall not have been reversed,  stayed, enjoined,  annulled or suspended
and the time for filing an appeal,  petition for certiorari or other request for
administrative  or judicial  relief or, in the case of an order of the FCC,  for
instituting  administrative  review of such order sua sponte, has expired and as
to which no appeal,  petition for certiorari or other request for administrative
or  judicial  relief  or,  in the case of an order of the FCC,  for  instituting
administrative  review of such order sua  sponte,  is pending  or, if an appeal,
petition for certiorari or other request for  administrative  or judicial relief
or, in the case of an order of the FCC, for instituting administrative review of
such order sua sponte,  has been timely filed or taken, the order or judgment of
such court,  administrative  agency or other tribunal has been affirmed (or such
appeal, petition or other request for administrative or judicial relief has been
dismissed  as moot) by the highest  court (or other  tribunal  having  appellate
jurisdiction  over the order or judgment) to which the order was appealed or the
petition for  certiorari  has been denied or, in the case of an order of the FCC
which the FCC  decided to review sua  sponte,  the FCC has either  withdrawn  or
dismissed  such  review,  and the time to take  any  further  appeal  or to seek
further certiorari or judicial or administrative review has expired.

      "Financial Officer":  as to any Person, the chief financial officer,  vice
president-finance  or treasurer of such Person or such other officer as shall be
satisfactory to the Administrative Agent.

      "Fixed Charge Coverage  Ratio":  as of the last day of any fiscal quarter,
the ratio of (i)  Annualized  Operating  Cash Flow of the Borrower to (ii) Fixed
Charges for the Four Quarter Trailing Period.

      "Fixed  Charges":  for any period,  the sum of (i)  scheduled  payments of
principal on Total Debt made or required to be made during such period, (ii) the
amount, if positive,  equal to (a) the amount of the Tranche A Loans outstanding
at the beginning of such period minus (b) the Aggregate Tranche A Commitments at
the end of such period (without giving effect to reductions  thereof during such
period  required by Section  2.3(d) with respect to the  application of proceeds
under the  provisions  of  Section  2.4(a),  2.4(c) or  2.4(d)),  (iii)  Capital
Expenditures  made by Arch and its  Subsidiaries on a Consolidated  basis during


                                       19
<PAGE>

such period,  (iv) payments  under Capital Leases made or required to be made by
Arch and its  Subsidiaries  on a  Consolidated  basis  during such  period,  (v)
without duplication, taxes and payments under the Tax Sharing Agreement, in each
case paid or required to be paid in cash made by Arch and its  Subsidiaries on a
Consolidated basis during such period, and (vi) Cash Interest Expense.

      "Foreign Credit Party":  any Credit Party that is organized under the laws
of a jurisdiction other than the United States.

      "Foreign  Subsidiary":  any  Subsidiary  that  is  a  "controlled  foreign
corporation" within the meaning of Section 957 of the Code.

      "Four Quarter Trailing Period":  at any date of determination,  the period
of the four  fiscal  quarters  ending on such date,  or, if such date is not the
last day of a fiscal quarter, the period of the most immediately  completed four
fiscal quarters.

      "GAAP": generally accepted accounting principles as in effect from time to
time in the United States.

      "Governmental  Body":  any  nation  or  government,  any  state  or  other
political  subdivision  thereof, any entity exercising  executive,  legislative,
judicial,  regulatory or administrative functions of or pertaining to government
and any court or arbitrator.

      "Grant of  Security  Interest":  as defined in the  Restricted  Subsidiary
Security Agreement or the Security and Intercreditor  Agreement,  as the context
may require.

      "Guarantor Obligations": with respect to (i) the Parent, as defined in the
Parent Guaranty,  (ii) Arch, as defined in the Arch Guaranty,  and (iii) each of
the Subsidiary Guarantors, as defined in the Subsidiary Guaranty.

      "Guaranty Supplement": a Supplement,  substantially in the form of Annex A
to the Subsidiary Guaranty.

      "Guarantors":   collectively,   the  Parent,   Arch  and  the   Subsidiary
Guarantors.

      "Highest  Lawful  Rate":  as to any  Lender or BNY,  the  maximum  rate of
interest,  if any, that at any time or from time to time may be contracted  for,
taken,  charged  or  received  by such  Lender or BNY on the Note or Notes  held
thereby,  as the case  may be,  or which  may be  owing  to such  Lender  or BNY
pursuant  to  this  Agreement  and the  other  Loan  Documents  under  the  laws
applicable to such Lender or BNY and this transaction.

      "HSR Act": the  Hart-Scott-Rodino  Antitrust  Improvements Act of 1976, as
amended.

      "Indebtedness":  as to any Person,  at a particular  time, all items which
constitute,  without  duplication,  (i)  indebtedness  for borrowed money or the
deferred  purchase price of Property (other than trade payables  incurred in the
ordinary  course of  business),  (ii)  indebtedness  evidenced by notes,  bonds,
debentures  or  similar  instruments,  (iii)  obligations  with  respect  to any


                                       20
<PAGE>

conditional sale or title retention  agreement,  (iv) indebtedness arising under
acceptance  facilities and the amount available to be drawn under all letters of
credit  issued for the  account of such  Person and,  without  duplication,  all
drafts drawn  thereunder to the extent such Person shall not have reimbursed the
issuer in respect of the issuer's  payment of such drafts,  (v) all  liabilities
(excluding  liabilities under Secured Hedging Agreements) secured by any Lien on
any  Property  owned by such  Person  even though such Person has not assumed or
otherwise   become  liable  for  the  payment  thereof  (other  than  carriers',
warehousemen's,  mechanics',  repairmen's  or other  like  non-consensual  Liens
arising in the ordinary  course of  business),  (vi)  obligations  under Capital
Leases,  (vii) all  Contingent  Obligations  and  (viii)  obligations  under the
Non-Competition Agreements.

      "Indemnified Liabilities": as defined in Section 11.4(b).

      "Indemnified  Tax": as to any Person,  any Tax, except (i) an Excluded Tax
imposed on such Person and (ii) any interest, fees or penalties for late payment
thereof imposed on such Person.

      "Intellectual   Property":  all  copyrights,   trademarks,   servicemarks,
patents, trade names and service names.

      "Intercompany Notes": collectively, (i) the Intercompany Notes, each dated
June  3,  1999,  made  by  each  of  MobileMedia  Communications,  Inc.,  Mobile
Communications Corporation of America and MobileMedia License Co., L.L.C. to the
Borrower,  (ii) the  Existing  Parent  Intercompany  Notes,  (iii) the  Existing
Intercompany  Notes and (iv) any other  promissory  note  executed and delivered
after the Third Restatement Date evidencing  Indebtedness of a Subsidiary of the
Parent to the Parent or to another Subsidiary of the Parent.

      "Intercompany Subordinated Debt": as defined in Section 8.1(vi).

      "Interest  Coverage  Ratio":  as of the last day of (i) any fiscal quarter
occurring on or before the Merger Effective Date and the fiscal quarter in which
the  Merger  Effective  Date  occurs,  the ratio of  Operating  Cash Flow of the
Borrower to Cash Interest  Expense,  in each case for the Four Quarter  Trailing
Period,  (ii) the first full fiscal  quarter  ending after the Merger  Effective
Date, the ratio of Operating Cash Flow of the Borrower to Cash Interest  Expense
in each case for such  fiscal  quarter,  (iii) the second  full  fiscal  quarter
ending after the Merger  Effective Date, the ratio of Operating Cash Flow of the
Borrower to Cash  Interest  Expense,  in each case for the first and second full
fiscal  quarters  ending after the Merger  Effective  Date,  (iv) the third full
fiscal  quarter ending after the Merger  Effective  Date, the ratio of Operating
Cash Flow of the Borrower to Cash  Interest  Expense in each case for the first,
second and third full fiscal  quarters  ending after the Merger  Effective Date,
and (v) the fourth full fiscal  quarter  ending after the Merger  Effective Date
and each fiscal  quarter  thereafter,  the ratio of  Operating  Cash Flow of the
Borrower to Cash Interest Expense for the Four Quarter Trailing Period.

      "Interest  Payment Date": (i) as to any ABR Advance,  the last day of each
March,  June,  September  and December  commencing  on the first of such days to
occur after such ABR Advance is made or any  Eurodollar  Advance is converted to
an ABR  Advance,  (ii) as to any  Eurodollar  Advance  in  respect  of which the


                                       21
<PAGE>

Borrower has selected an Interest  Period of one, two or three months,  the last
day of such Interest Period,  and (iii) as to any Eurodollar  Advance in respect
of which the  Borrower  has  selected an Interest  Period of greater  than three
months, the last day of each three month interval occurring during such Interest
Period and the last day of such Interest Period.

      "Interest Period": with respect to any Eurodollar Advance requested by the
Borrower,  the period  commencing  on, as the case may be, the Credit  Extension
Date or Conversion/Continuation Date with respect to such Eurodollar Advance and
ending  one,  two,  three or six  months or, if agreed by each  Lender,  nine or
twelve  months,  thereafter,  as selected by the  Borrower,  in its  irrevocable
Credit Request or its irrevocable Notice of  Conversion/Continuation;  provided,
however,  that all of the foregoing  provisions relating to Interest Periods are
subject to the following:

         (a) if any Interest  Period would otherwise end on a day which is not a
Business  Day,  such  Interest  Period shall be extended to the next  succeeding
Business Day unless the result of such extension would be to carry such Interest
Period into another  calendar  month,  in which event such Interest Period shall
end on the immediately preceding Business Day;

         (b) any Interest Period pertaining to a Eurodollar  Advance that begins
on the last Business Day of a calendar  month (or on a day for which there is no
numerically  corresponding day in the calendar month at the end of such Interest
Period) shall end on the last Business Day of a calendar month;

         (c) no Interest  Period  selected in respect of any Eurodollar  Advance
comprising  all or a part of (i) a Tranche A Loan shall end after the  Tranche A
Maturity Date (ii) a Tranche B Loan shall end after the Tranche B Maturity Date,
(iii) a Tranche B-1 Loan shall end after the Tranche B-1 Maturity Date or (iv) a
Tranche C Loan shall end after the Tranche C Maturity Date;

         (d) the Borrower shall select  Interest  Periods so as not to have more
than eight outstanding Interest Periods at any one time; and

         (e) the Borrower shall select  Interest  Periods such that on each date
that (i) a mandatory  scheduled reduction of the Aggregate Tranche A Commitments
occurs  pursuant to Section  2.3(b),  or (ii) a scheduled  repayment  of (x) the
Tranche B Loans is due under Section 2.5(a)(i), (y) the Tranche B-1 Loans is due
under  Section  2.5(a)(ii)  or (z) the  Tranche  C Loans  is due  under  Section
2.5(a)(iii),  the  outstanding  principal  amount  of all  ABR  Advances  of the
relevant  Tranche,  when  added  to  the  aggregate  principal  amount  of  each
Eurodollar  Advance of the relevant  Tranche the applicable  Interest  Period of
which shall end on such date,  shall equal or exceed the aggregate amount of the
Loans of the  relevant  Tranche  which may be required to be repaid on such date
pursuant to Section 2.3(b) or 2.5(a)(i), (ii) or (iii), respectively.

      "Interest Rate  Protection  Agreements":  collectively,  all interest rate
swap, cap, ceiling,  hedge or other interest rate protection agreements designed
to hedge against  fluctuations  in interest rates or currency  exchange rates or
the exchange of nominal interest  obligations either generally or under specific


                                       22
<PAGE>

contingencies,  in each case entered  into or assumed by the  Borrower  with any
financial institution.

      "Investments": as defined in Section 8.6.

      "Joinder and Assumption Agreement":  the Joinder and Assumption Agreement,
substantially in the form of Exhibit L.

      "Joinder Supplement": as defined in the Escrow Agreement.

      "Lender":  each lender  signatory to this  Agreement and each Person which
becomes a lender  pursuant to Section  3.7,  11.5(b) or on the Merger  Effective
Date pursuant to the Joinder and  Assumption  Agreement,  in each case including
each Tranche A Lender,  each Tranche B Lender,  each Tranche B-1 Lender and each
Tranche C Lender.

      "Letter of Credit": as defined in Section 2.6(a).

      "Letter  of Credit  Commitment":  means the  commitment  of the  Letter of
Credit Issuer to issue Letters of Credit  having an aggregate  outstanding  face
amount up to $5,000,000.

      "Letter of Credit Documentation": as defined in Section 2.6(a).

      "Letter of Credit  Exposure":  in  respect of any  Tranche A Lender at any
time, an amount equal to (i) the sum (without  duplication)  at such time of (x)
the aggregate undrawn face amount of the outstanding  Letters of Credit, (y) the
aggregate  amount of unpaid  drafts drawn on all Letters of Credit,  and (z) the
aggregate  unpaid  Reimbursement  Obligations  multiplied by (ii) such Tranche A
Lender's Tranche A Percentage at such time.

      "Letter of Credit Fees": as defined in Section 3.2(b).

      "Letter of Credit Issuer": BNY.

      "Lien":  any  mortgage,  pledge,  hypothecation,  assignment,  deposit  or
preferential  arrangement,  encumbrance,  lien  (statutory  or other),  or other
security  agreement  or  security  interest  of any kind or  nature  whatsoever,
including  any  conditional  sale or other  title  retention  agreement  and any
Capital Lease or other  financing lease having  substantially  the same economic
effect as any of the foregoing.

      "Loan   Documents":   collectively,   this  Agreement,   the  Notes,   the
Subordination   Agreement,  the  Collateral  Documents,  the  Letter  of  Credit
Documentation,  upon  the  execution  and  delivery  thereof,  the  Joinder  and
Assumption  Agreement,  on and after the Merger  Effective Date, any application
and  reimbursement  agreement  with  respect to any Existing  PageNet  Letter of
Credit,  and  all  other  agreements,  instruments  and  documents  executed  or
delivered in connection herewith.

      "Loan  Party":  the  Borrower  and each other party (other than the Credit
Parties) that is a party to a Loan Document.



                                       23
<PAGE>

      "Loans":  the Tranche A Loans , the Tranche B Loans, the Tranche B-1 Loans
and the Tranche C Loans.

      "Madison Holdings":  Madison Telecommunications Holdings, Inc., a Canadian
corporation and a Subsidiary of PageNet Canada Holdings.

      "Madison  Holdings  Collateral  Documents":   collectively,  each  of  the
following  security  documents,  each dated as of June 5, 1996 unless  otherwise
indicated:  (i) the Demand  Debenture  made by Madison  Holdings to the Canadian
Agent,  (ii) the Debenture  Pledge  Agreement,  between Madison Holdings and the
Canadian  Agent,  (iii) the  General  Assignment  of Book  Debts made by Madison
Holdings to the Canadian Agent, (iv) the Securities  Pledge  Agreement,  made by
Madison  Holdings in favor of the  Canadian  Agent,  (v) the  Guarantee  made by
Madison Telecomm in favor of the Canadian Agent,  (vi) the Demand Debenture made
by Madison Telecomm to the Canadian Agent, (vii) the Debenture Pledge Agreement,
between Madison Telecomm and the Canadian Agent,  (viii) the General  Assignment
of Book  Debts  made  by  Madison  Telecomm  to the  Canadian  Agent,  (ix)  the
Guarantee, dated April 17, 1997, made by PageNet Canada Holdings in favor of the
Canadian  Agent,  (x) the  Securities  Pledge  Agreement  made by PageNet Canada
Holdings in favor of the  Canadian  Agent,  (xi) the  Guarantee  made by Madison
Venture in favor of the Canadian Agent,  (xii) the Securities  Pledge  Agreement
made by Madison Venture in favor of the Canadian Agent,  (xiii) Letter of Credit
No.  V-323458,  dated June 3, 1996, as extended,  in the face amount of Canadian
$4,500,000,  issued by Canadian  Imperial  Bank of  Commerce  for the account of
Madison  Venture and for the benefit of the  Canadian  Agent,  (xiv) the Deposit
Agreement,  dated  April 17,  1997,  between  PageNet  Canada  Holdings  and the
Canadian  Agent,  (xv) the Deposit  Agreement  between  Madison  Venture and the
Canadian Agent, (xvi) the Deed of Hypoc of Moveable and Immovable Property, made
by Madison  Holdings to the Canadian  Agent,  dated  October 15, 1996,  (xvii) a
Specific  Assignment of  Intercorporate  Debt,  made by Madison  Holdings to the
Canadian  Agent,  dated as of April 18,  1997,  and (xviii) the  Agreement as to
Security  under  Section 427 of the Bank Act between  Madison  Holdings  and the
Canadian Agent.

      "Madison  Holdings  Loan  Documents":  collectively,  (i) the  Amended and
Restated  Credit  Agreement,  dated as of August 5, 1999,  by and among  Madison
Holdings,  the lenders  party thereto and the Canadian  Agent,  (ii) the Madison
Holdings  Collateral  Documents,  and  (iii) all other  documents  executed  and
delivered in connection therewith.

      "Madison   Telecomm":   Madison   Telecommunications,   Inc.,  a  Canadian
corporation and a wholly-owned Subsidiary of Madison Holdings.

      "Madison Venture": Madison Venture Corporation, a Canadian corporation.

      "Management  Agreement":  the Amended  and  Restated  Management  Services
Agreement, dated as of June 29, 1998, by and among Arch and its Subsidiaries.

      "Management Fees": all fees and expenses paid to Arch or the Parent by any
of their respective Subsidiaries,  or to any of their respective Affiliates,  or
to any employees thereof,  for general  corporate,  administrative or management
services received.



                                       24
<PAGE>

      "Managing Agents": as defined in the preamble.

      "Managing  Person":  with respect to any Person that is a (i) corporation,
its board of directors,  (ii) a limited liability company,  its board of control
or managing member or members, (iii) a limited partnership, its general partner,
(iv) a general  partnership,  its managing partner or executive committee or (v)
such other managing body or Person analogous to the foregoing.

      "Margin Stock":  any "margin stock", as said term is defined in Regulation
U, as the same may be amended or supplemented from time to time.

      "Material  Adverse  Change":  a material  adverse  change in the financial
condition,  business,  operations,  prospects  (as  such  prospects  pertain  to
Borrower's ability to repay its obligations under the Loan Documents as the same
shall become due) or Property of (i) Arch and its Subsidiaries  taken as a whole
or (ii)  prior  to  termination  of the  Parent  Guaranty,  the  Parent  and its
Subsidiaries taken as a whole.

      "Material  Adverse  Effect":  a material  adverse  effect on the financial
condition,  business,  operations,  prospects  (as  such  prospects  pertain  to
Borrower's ability to repay its obligations under the Loan Documents as the same
shall become due) or Property of (i) Arch and its Subsidiaries  taken as a whole
or (ii)  prior  to  termination  of the  Parent  Guaranty,  the  Parent  and its
Subsidiaries taken as a whole.

      "Material Foreign  Subsidiary":  as to any Person, a Foreign Subsidiary of
such Person  which,  as of the last day of the most  recently  completed  fiscal
quarter,  satisfied  any one or  more  of the  following  three  tests:  (i) the
Borrower and its other  Subsidiaries'  investments  in and  advances  made on or
after  the  Third  Restatement  Date  (or,  in the  case of a  PageNet  Canadian
Subsidiary,  the Merger  Effective Date) to (x) such Foreign  Subsidiary and its
Subsidiaries exceed $15,000,000 in the aggregate or (y) all Foreign Subsidiaries
which are not Subsidiary  Guarantors exceeds $25,000,000 in the aggregate,  (ii)
the Borrower and its other  Subsidiaries'  proportionate  share of  Consolidated
Total Assets  (after  intercompany  eliminations)  consisting of the Property of
such Foreign  Subsidiary  exceeds 5% of  Consolidated  Total Assets or (iii) the
Borrower  and the other  Subsidiaries'  equity  in the  income  (not to  include
losses) from continuing operations before income taxes,  extraordinary items and
the  cumulative  effect of a change in  accounting  principles  of such  Foreign
Subsidiary  exceeds 5% of the income  (not to include  losses)  from  continuing
operations before income taxes, extraordinary items and the cumulative effect of
a  change  in  accounting  principles  of  the  Borrower  and  its  Subsidiaries
determined on a Consolidated basis in accordance with GAAP.  Notwithstanding the
foregoing,  a PageNet Canadian  Subsidiary that is a party to one or more of the
PageNet  Canadian Loan Documents shall not be a Material  Foreign  Subsidiary by
reason of the satisfaction of the tests set forth in clause (ii) or (iii) of the
preceding  sentence  until the PageNet  Canadian Loan Documents to which it is a
party have been terminated.

      "Maturity Date": the Tranche A Maturity Date, the Tranche B Maturity Date,
the Tranche B-1 Maturity  Date or the Tranche C Maturity  Date,  as the case may
be.



                                       25
<PAGE>

      "Maximum Excess Cash Flow Amount": as defined in Section 2.4.

      "Maximum  Permitted  Indebtedness":  on any  date  of  determination,  the
maximum Total  Leverage  Ratio  permitted on such date  multiplied by Annualized
Operating Cash Flow of the Borrower.

      "Merger Agreement": the Agreement and Plan of Merger, dated as of November
7,  1999,  by and among the  Parent,  Merger  Sub and  PageNet,  as  amended  by
Amendment No. 1, dated as of January 7, 2000.

      "Merger  Effective  Date":  provided that the conditions  precedent to the
consummation  of the  PageNet  Merger as set forth in Section  8.3(iv)  and,  if
applicable,   Section   8.3(v),   shall  have  been   satisfied   (prior  to  or
simultaneously) or waived in accordance with the provisions of Section 11.1, the
date upon which the PageNet Merger becomes effective.

      "Merger  Effective  Time":  the time on the Merger Effective Date at which
the PageNet Merger becomes effective.

      "Merger Sub": St. Louis  Acquisition  Corp., a Delaware  corporation and a
direct wholly-owned Subsidiary of the Parent.

      "Minority  Lenders":  on any date of  determination,  Lenders  under  this
Agreement  having Tranche A Commitments  (or, if no Tranche A Commitments are in
effect, Tranche A Exposure), Tranche B Loans and Tranche C Loans aggregating not
less than 40% of the sum of (i) the Aggregate  Tranche A Commitments  (or, if no
Tranche A Commitments  are in effect,  Aggregate  Tranche A Exposure),  (ii) the
aggregate  outstanding  principal  balance of the Tranche B Loans, and (iii) the
aggregate outstanding principal balance of the Tranche C Loans.

      "Moody's": Moody's Investors Service, Inc. or any successor thereto.

      "Multiemployer  Plan": a Plan which is a multiemployer  plan as defined in
Section 4001(a)(3) of ERISA.

      "Net Sales Proceeds":  an amount equal to the greater of (i) the aggregate
gross sales  proceeds  received from each sale or other  disposition,  direct or
indirect,  of Property  (other than  inventory  or  Property  sold or  otherwise
disposed  of in the  ordinary  course  of  business)  less (x)  sales  and other
commissions and legal and other expenses  incurred in connection with such sale,
including  reasonable  expenses  incurred in connection  with the preparation of
such  Property  for sale,  (y) taxes  reasonably  estimated  to be payable  with
respect to such sale by the Parent and its  Subsidiaries for the taxable year in
which  such sale  occurred  (taking  into  consideration  the  Parent's  overall
Consolidated  tax  position  for such year) and (z) the  amount of  Indebtedness
secured by such  Property  which is required to be repaid upon such sale or (ii)
100% of the Net Cash  Proceeds  (or  similar  amount)  as  defined in any of the
Parent Discount Notes Indenture or the Arch  Indentures,  in each case in effect
on the date of determination of Net Sales Proceeds.

      "New Subsidiary Guarantor": as defined in Section 7.18(a).



                                       26
<PAGE>

      "Non-Competition Agreements": any non-competition or similar agreement (to
the extent  permitted  by Section  8.1(ix)),  entered into by Arch or any of its
Subsidiaries in connection with an Acquisition permitted by Section 8.6(h).

      "Non-Material  Foreign  Subsidiary":  as to  any  Person  at any  time  of
determination, a Foreign Subsidiary of such Person other than a Material Foreign
Subsidiary.

      "Noteholder Consents":  collectively,  the PageNet Noteholder Consents and
the Parent Discount Noteholder Consents.

      "Notes": with respect to each Lender in respect of such Lender's Tranche A
Loans,  Tranche B Loans,  Tranche  B-1 Loans and Tranche C Loans,  a  promissory
note,  substantially in the form of Exhibit A, in each case payable to the order
of such Lender,  each such promissory note having been made by the Borrower and,
in the case of the Tranche B-1 Loans dated the Merger Effective Date,  including
all replacements thereof and substitutions therefor.

      "Notice of Conversion/Continuation": a notice substantially in the form of
Exhibit C.

      "Obligations":  collectively,  the Borrower  Obligations and the Guarantor
Obligations.

      "Operating Cash Flow":  as to any Person for any period,  total revenue of
such  Person  and its  Subsidiaries  on a  Consolidated  basis for such  period,
determined in accordance with GAAP, without giving effect to extraordinary gains
and losses from sales,  exchanges and other  dispositions of Property not in the
ordinary course of business,  and non-recurring  items, less the sum of, without
duplication,   the  following  for  such  Person  and  its   Subsidiaries  on  a
Consolidated  basis for such period,  determined  in accordance  with GAAP:  (i)
operating expenses  (exclusive of depreciation,  amortization and other non-cash
items included therein),  and (ii) corporate office,  general and administrative
expenses  (exclusive of  depreciation,  amortization  and other  non-cash  items
included  therein).  With  respect to the  Borrower  and its  Subsidiaries,  any
Management  Fees paid or accrued will be treated as an  administrative  expense.
Solely for purposes of calculating the API Leverage Ratio and the Total Leverage
Ratio,  Operating  Cash Flow of the  Borrower  shall be adjusted on a consistent
basis satisfactory to the  Administrative  Agent to give pro-forma effect to any
acquisition, sale, exchange or disposition of Property.

      "Organizational  Documents":  as to any Person which is (i) a corporation,
the certificate or articles of incorporation  and bylaws of such Person,  (ii) a
limited liability company,  the limited liability company operating agreement or
similar agreement of such Person, (iii) a partnership, the partnership agreement
or  similar  agreement  of such  Person,  or (iv) any  other  form of  entity or
organization, the organizational documents analogous to the foregoing.

      "Other Taxes": any and all current or future stamp or documentary taxes or
any other excise or property  taxes,  charges or similar  levies that arise from
any payment made  hereunder or from the  execution,  delivery,  registration  or
enforcement of, or any amendment,  supplement or modification  of, or any waiver


                                       27
<PAGE>

or consent under or in respect of, the Loan  Documents or otherwise with respect
to, the Loan Documents.

      "Page Call": Page Call, Inc., a Delaware corporation.

      "Page Call  Guaranty":  the guaranty by the Parent of the  obligations  of
Benbow in respect of (i) the preferred  Stock of Benbow and the promissory  note
of Benbow  described in the definition of Page Call Purchase  Agreement and (ii)
the  Consulting  Agreement  described in the  definition  of Page Call  Purchase
Documents.

      "Page Call Purchase Agreement":  the Stock Purchase Agreement, dated as of
April 30, 1997, among Page Call,  Lisa-Gaye  Shearing,  Adelphia  Communications
Corporation,  Benbow and the Parent,  as amended on June 29,  1998,  pursuant to
which Benbow will acquire all of the issued and  outstanding  Stock of Page Call
in  consideration  of the issuance of preferred Stock of Benbow and a promissory
note of Benbow in an aggregate face amount of approximately $17,200,000.

      "Page Call Purchase Documents":  collectively,  (i) the Page Call Purchase
Agreement, (ii) the Page Call Guaranty, (iii) the Consulting Agreement, dated as
of June 29, 1998,  between  Benbow and  Lisa-Gaye  Shearing,  and (iv) all other
documents executed in connection therewith.

      "PageNet": Paging Network, Inc., a Delaware corporation.

      "PageNet Canada":  Paging Network of Canada,  Inc., a Canadian corporation
and a wholly-owned Subsidiary of PageNet Canada Holdings.

      "PageNet Canada Collateral Documents": collectively, each of the following
security  documents,  each dated as of June 5, 1996 unless otherwise  indicated:
(i) the Demand Debenture made by PageNet Canada to the Canadian Agent,  (ii) the
Debenture Pledge Agreement, between PageNet Canada and the Canadian Agent, (iii)
the  General  Assignment  of Book Debts made by PageNet  Canada to the  Canadian
Agent,  (iv) the Securities  Pledge Agreement made by PageNet Canada Holdings in
favor of the Canadian  Agent,  (v) the Guarantee,  dated April 18, 1997, made by
PageNet Canada Holdings in favor of the Canadian Agent,  (vi) the Guarantee made
by PageNet  Canada  Holdings in favor of the Canadian  Agent,  (vii) the Deposit
Agreement,  dated  April 18,  1997,  between  PageNet  Canada  Holdings  and the
Canadian Agent, and (viii) the Agreement as to Security under Section 427 of the
Bank Act between PageNet Canada and the Canadian Agent.

      "PageNet  Canada  Holdings":  Paging Network of Canada  Holdings,  Inc., a
Delaware corporation and a wholly-owned Subsidiary of PageNet.

      "PageNet  Canada  Loan  Documents":  collectively,  (i)  the  Amended  and
Restated  Credit  Agreement,  dated as of August 5, 1999,  by and among  PageNet
Canada,  the lenders  party  thereto and the  Canadian  Agent,  (ii) the PageNet
Canada Collateral Documents and (iii) all other documents executed and delivered
in connection therewith.



                                       28
<PAGE>

      "PageNet Canadian Loan Documents": collectively, the Madison Holdings Loan
Documents and the PageNet Canada Loan Documents.

      "PageNet Canadian Subsidiaries": collectively, the Subsidiaries of PageNet
identified  on  Schedule  4.1  (as   supplemented  in  accordance  with  Section
8.3(iv)(F)) as being organized under the laws of Canada.

      "PageNet 8.875% Senior Subordinated Indenture": the Indenture, dated as of
January 15,  1994,  between  PageNet  and Shawmut  Bank,  N.A.,  as Trustee,  as
supplemented by a First  Supplemental  Indenture,  dated as of January 15, 1994,
between PageNet and Shawmut Bank, N.A.

      "PageNet 8.875% Senior Subordinated Notes": the 8.875% Senior Subordinated
Notes Due  February 1, 2006  issued  under and  pursuant  to the PageNet  8.875%
Senior Subordinated Indenture.

      "PageNet Exchange":  the exchange of PageNet Senior Subordinated Notes for
common  Stock of PageNet and up to 68.9% of  PageNet's  equity  ownership in the
Distributed Subsidiary pursuant to the PageNet Exchange Offer.

      "PageNet Exchange Offer": the offer by PageNet to the PageNet  Noteholders
to exchange PageNet Senior Subordinated Notes for common Stock of PageNet and up
to 68.9% of PageNet's  equity  ownership in the  Distributed  Subsidiary and the
solicitation of the PageNet Noteholder Consents.

      "PageNet Letter of Credit Issuer": Bank of America, N.A., as issuer of the
Existing PageNet Letters of Credit.

      "PageNet  Merger":  the  merger of Merger Sub with and into  PageNet  with
PageNet as the survivor pursuant to the Merger Agreement.

      "PageNet  Merger  Certificate":  the  Certificate  of Ownership and Merger
filed with the Secretary of State of the State of Delaware to effect the PageNet
Merger.

      "PageNet Merger Documents":  collectively,  (i) the Merger Agreement, (ii)
the PageNet  Subsidiary Merger Documents and (iii) all other documents  executed
and delivered in connection  with the PageNet  Merger,  each PageNet  Subsidiary
Merger, the Spin-Off and the Dropdown.

      "PageNet Noteholder  Consents":  the consent of the PageNet Noteholders to
the PageNet Merger and the approval by the PageNet  Noteholders of amendments to
the PageNet Senior Subordinated  Indentures  solicited by PageNet as part of the
PageNet Exchange Offer.

      "PageNet  Noteholders":   collectively,  the  holders  of  PageNet  Senior
Subordinated Notes.



                                       29
<PAGE>

      "PageNet  Reimbursement  Obligation":   collectively,  the  obligation  of
PageNet (i) to the PageNet Letter of Credit Issuer with respect to each Existing
PageNet Letter of Credit, if any, and (ii) under all documents,  instruments and
other  agreements  related  thereto,  including  the  obligation  of  PageNet to
reimburse  the  PageNet  Letter of Credit  Issuer for  amounts  drawn under each
Existing PageNet Letter of Credit.

      "PageNet Senior Subordinated Indentures": collectively, the PageNet 8.875%
Senior Subordinated Indenture, the PageNet 10% Senior Subordinated  Supplemental
Indenture and the PageNet 10.125% Senior Subordinated Supplemental Indenture.

      "PageNet  Senior  Subordinated  Notes":  collectively,  the PageNet 8.875%
Senior  Subordinated  Notes, the PageNet 10% Senior  Subordinated  Notes and the
PageNet 10.125% Senior Subordinated Notes.

      "PageNet  Subsidiary  Merger":  each merger,  if any, of a  Subsidiary  of
PageNet with and into PageNet or another  Subsidiary  of PageNet which occurs on
or before the Merger Effective Date.

      "PageNet  Subsidiary  Merger  Certificate":  with  respect to each PageNet
Subsidiary   Merger,  a  Certificate  of  Ownership  and  Merger  (or  analogous
documents) filed with the Secretary of State of the applicable  jurisdictions to
effect such PageNet Subsidiary Merger.

      "PageNet  Subsidiary  Merger  Documents":   collectively,   all  documents
executed and delivered in connection  with the PageNet  Subsidiary  Mergers,  if
any.

      "PageNet 10% Senior Subordinated  Supplemental Indenture":  the Indenture,
dated as of July 15, 1995,  between PageNet and Shawmut Bank,  N.A., as Trustee,
as  supplemented  by a Second  Supplemental  Indenture,  dated as of October 15,
1996, between PageNet and Fleet National Bank.

      "PageNet 10% Senior Subordinated Notes": the 10% Senior Subordinated Notes
Due  October  15,  2008  issued  under and  pursuant  to the  PageNet 10% Senior
Subordinated Supplemental Indenture.

      "PageNet  10.125%  Senior  Subordinated   Supplemental   Indenture":   the
Indenture, dated as of July 15, 1995, between PageNet and Shawmut Bank, N.A., as
Trustee, as supplemented by a First Supplemental Indenture, dated as of July 15,
1995, between PageNet and Shawmut Bank, N.A.

      "PageNet   10.125%  Senior   Subordinated   Notes":   the  10.125%  Senior
Subordinated  Notes Due August 1, 2007 issued  under and pursuant to the PageNet
10.125% Senior Supplemental Subordinated Indenture.

      "PageNet  Transaction  Documents":  collectively,  (i) the PageNet  Merger
Documents, (ii) the Exchange Documents,  (iii) the Noteholder Consents, and (iv)
the Joinder and Assumption Agreement.



                                       30
<PAGE>

      "PageNet  Transactions":  the  Transactions  contemplated  by the  PageNet
Transaction Documents.

      "Pagers in Service":  at any time, pager units which are producing revenue
at such time at standard and customary billing rates.

      "Paging-Related  Business":  the  business  of selling  or renting  paging
equipment or the offering of paging  services,  which business is located in the
United States or Canada.  For purpose hereof,  paging services include all forms
of one-way and narrowband wireless communications.

      "Parent": Arch Communications Group, Inc., a Delaware corporation.

      "Parent Discount Noteholder Consents":  the consent of the Parent Discount
Noteholders  to the  PageNet  Merger and the  approval  by the  Parent  Discount
Noteholders of amendments to the Parent  Discount Notes  Indenture  solicited by
the Parent as part of the Parent Exchange Offer.

      "Parent  Discount  Noteholders":   collectively,  the  holders  of  Parent
Discount Notes.

      "Parent  Discount  Notes":  the 10-7/8% Senior Parent Discount Notes,  due
2008, issued by the Parent pursuant to the Parent Discount Notes Indenture.

      "Parent Discount Notes  Indenture":  the Indenture,  dated as of March 12,
1996, between the Parent and IBJ Schroder Bank & Trust Company or its successor,
as trustee, pursuant to which the Parent issued the Parent Discount Notes.

      "Parent Exchange":  the exchange of Parent Discount Notes for common Stock
of the Parent pursuant to the Parent Exchange Offer.

      "Parent Exchange Offer":  the offer by the Parent to holders of the Parent
Discount  Notes to exchange such Parent  Discount  Notes for common Stock of the
Parent and the solicitation of Parent Discount Noteholder Consents.

      "Parent  Guaranty":  the Second Amended and Restated  Parent  Guaranty and
Pledge Agreement, substantially in the form of Exhibit F.

      "Parent Guaranty (PageNet)": as defined in Section 8.3(iv)(H).

      "Parent  Preferred  Stock":  Series C Convertible  Preferred  Stock of the
Parent.

      "Parent  Preferred Stock  Conversion":  the conversion of Parent Preferred
Stock to common Stock of the Parent.

      "Parent  Subordinated  Debentures":   the  6  3/4Convertible  Subordinated
Debentures,  due 2003, issued by the Parent pursuant to the Parent  Subordinated
Indenture.



                                       31
<PAGE>

      "Parent Subordinated  Indenture":  the Indenture,  dated as of December 1,
1993, between the Parent and BNY or its successor, as trustee, pursuant to which
the Parent issued the Parent Subordinated Debentures.

      "Payment  Office":  the  office of the  Administrative  Agent set forth in
Section 11.2(b).

      "Permitted Liens": Liens permitted to exist pursuant to Section 8.2.


      "Person": an individual, a partnership, a corporation, a business trust, a
joint stock company, a trust, an unincorporated  association, a joint venture, a
Governmental Body or any other entity of whatever nature.

      "Plan": any employee benefits or other plan which is covered by or subject
to the minimum  funding  standards of Title IV of ERISA and which is maintained,
or to which  contributions are made, by the Parent or any of its Subsidiaries or
a  Commonly  Controlled  Entity or in  respect of which the Parent or any of its
Subsidiaries or a Commonly Controlled Entity has or may have any liability.

      "Plan of Reorganization":  in the event that the Bankruptcy Proceeding has
been commenced, the Joint Plan of Reorganization of PageNet and its Subsidiaries
which are debtors in such proceeding.

      "Power of  Attorney":  as defined in the  Restricted  Subsidiary  Security
Agreement  or the  Security  and  Intercreditor  Agreement,  as the  context may
require.

      "Prepayment Fee": as defined in Section 2.5(b).

      "Pricing  Leverage  Ratio":  (i) prior to the  Existing  Arch  Senior Note
Termination Date, the Total Leverage Ratio, and (ii) at all other times, the API
Leverage Ratio.

      "Pro-forma  Debt Service":  at any date of  determination,  the sum of (i)
Cash  Interest  Expense for the period of the four fiscal  quarters  immediately
succeeding  such  date of  determination,  (ii) all  current  maturities  of all
Indebtedness of Arch and its Subsidiaries (determined on a Consolidated basis in
accordance  with GAAP) for such four fiscal quarter period and (iii) the amount,
if positive,  equal to (a) the amount of the Tranche A Loans  outstanding at the
beginning of such period minus (b) the Aggregate  Tranche A  Commitments  at the
end of such period (after giving effect to any mandatory  reductions during such
period pursuant to Section 2.3(b)). Where any item of interest varies or depends
upon a variable  rate of interest (or other rate of interest  which is not fixed
for such  entire  four  fiscal  quarter  period),  such rate,  for  purposes  of
calculating Pro-forma Debt Service, shall be assumed to equal the Alternate Base
Rate plus the Applicable Margin in effect on the date of such  calculation,  or,
if such rate is a  Eurodollar  Rate,  the  applicable  Eurodollar  Rate plus the
Applicable Margin in effect on the date of such calculation.  Also, for purposes
of  calculating  Pro-forma  Debt  Service,  the  principal  amount of Total Debt
outstanding  on the date of any  calculation  of Pro-forma Debt Service shall be
assumed  to  be  outstanding  during  the  entire  four  fiscal  quarter  period


                                       32
<PAGE>

immediately succeeding such date, except to the extent that such Indebtedness is
subject to mandatory payment of principal during such period.

      "Pro-forma Debt Service Coverage Ratio":  as of the last day of any fiscal
quarter,  the  ratio  of  Annualized  Operating  Cash  Flow of the  Borrower  to
Pro-forma Debt Service as of such date.

      "Property":  all types of real,  personal,  tangible,  intangible or mixed
property.

      "Register": as defined in Section 2.8(b)(iii).

      "Registered Note": as defined in Section 2.8(b)(i).

      "Registered    Noteholder":    as   defined    in   Section    2.8(b)(ii).

      "Regulation D, T, U and X":  Regulations D, T, U and X,  respectively,  of
the Board of Governors  as from time to time in effect and all official  rulings
and interpretations thereunder or thereof.

      "Reimbursement Obligation":  collectively,  the obligation of the Borrower
(i) to the Letter of Credit  Issuer  with  respect to each  Letter of Credit and
(ii) under all documents,  instruments  and other  agreements  related  thereto,
including  the  obligation  of the  Borrower to  reimburse  the Letter of Credit
Issuer for amounts drawn under each Letter of Credit.

      "Reinvested  Proceeds":  with respect to any Disposition as of any date of
determination,  the amount of Net Sales Proceeds from such  Disposition  that is
used by the  Borrower  or any  Subsidiary  to acquire,  during the  Reinvestment
Period  with  respect  to  such  Disposition,  Property  that is to be used in a
Paging-Related Business.

      "Reinvestment Period": the period beginning on the date that proceeds from
a Disposition  are received by the Borrower or any  Subsidiary,  as the case may
be,  and  ending  on the  earlier  of (i) 180 days  after  the  receipt  of such
proceeds,  provided, however, that if the Borrower or any Subsidiary enters into
a legally  binding  agreement to reinvest  such  proceeds  which would have been
consummated  within such 180 day period and such agreement is  terminated,  such
180 day period shall be extended for an additional 90 days, and (ii) the date on
which a Loan Party would be  required to make or offer to purchase or  otherwise
repay  Indebtedness  (other than  Indebtedness  under the Loan  Documents)  as a
result of such Disposition.

      "Related Parties":  with respect to any Person,  such Person's  Affiliates
and the respective directors,  officers,  employees, agents and advisors of such
Person and such Person's Affiliates.

      "Relevant  Date":  (i) in the case of each Lender  signatory hereto on the
Third  Restatement  Date, the Third  Restatement  Date, (ii) in the case of each
Tranche B-1 Lender signatory to the Joinder and Assumption Agreement, the Merger
Effective Date, or (iii) in the case of each other Lender, the effective date of


                                       33
<PAGE>

the Assignment and Acceptance  Agreement or other document  pursuant to which it
became a Lender.

      "Remaining Interest Period": (i) in the event that the Borrower shall fail
for any  reason to borrow a Loan in  respect  of which the  Borrower  shall have
requested  a  Eurodollar  Advance,  or to convert an Advance  to, or continue an
Advance as, a  Eurodollar  Advance  after the Borrower  shall have  notified the
Administrative  Agent of its  intent  to do so, a period  equal to the  Interest
Period that the Borrower elected in respect of such Eurodollar Advance;  (ii) in
the event that a Eurodollar  Advance shall terminate for any reason prior to the
last day of the  Interest  Period  applicable  thereto,  a  period  equal to the
remaining  portion of such Interest  Period if such Interest Period had not been
so terminated; or (iii) in the event that the Borrower shall prepay or repay all
or any part of the  principal  amount of a Eurodollar  Advance prior to the last
day of the Interest Period applicable thereto, a period equal to the period from
and including the date of such prepayment or repayment to but excluding the last
day of such Interest Period.

      "Replacement  Indenture":  the indenture pursuant to which any Replacement
Notes shall be issued.

      "Replacement  Notes":  any  senior  note issue of Arch in an amount and on
terms and conditions satisfactory to the Required Lenders.

      "Required Lenders": on any date of determination,  Lenders satisfying both
clauses (a) and (b) below:

         (a)  Lenders  having  Tranche  A  Commitments  (or,  if  no  Tranche  A
Commitments  are in effect,  Tranche A Exposure),  Tranche B Loans and Tranche C
Loans  aggregating  more  than  50% of the sum of (i) the  Aggregate  Tranche  A
Commitments (or, if no Tranche A Commitments are in effect,  Aggregate Tranche A
Exposure),  (ii) the aggregate  outstanding  principal  balance of the Tranche B
Loans, and (iii) the aggregate  outstanding  principal  balance of the Tranche C
Loans, and

         (b)  Lenders  having  Tranche  A  Commitments  (or,  if  no  Tranche  A
Commitments  are in effect,  Tranche A Exposure),  Tranche B Loans,  Tranche B-1
Loans  and  Tranche  C Loans  aggregating  more  than  50% of the sum of (i) the
Aggregate  Tranche A Commitments (or, if no Tranche A Commitments are in effect,
Aggregate Tranche A Exposure),  (ii) the aggregate outstanding principal balance
of the Tranche B Loans, (iii) the aggregate outstanding principal balance of the
Tranche B-1 Loans and (iv) the aggregate  outstanding  principal  balance of the
Tranche C Loans.

      "Required Obligations": on any date, interest due and payable on such date
on the Arch Senior Notes.

      "Required Payment": as defined in Section 3.6(a).

      "Restricted  Payment": as to any Person, (i) the payment or declaration by
such Person of any dividend on any class of Stock or other equity interest


                                       34
<PAGE>

(other than dividends payable solely in common Stock of the such Person or other
Stock to the  extent  the same is  permitted  to be issued  pursuant  to Section
8.13), or warrants, rights or options to acquire common Stock of such Person (or
other Stock to the extent the same is permitted to be issued pursuant to Section
8.13) or the  making of any other  distribution  on  account of any class of its
Stock or other equity  interest,  (ii) the retirement,  redemption,  purchase or
acquisition,  directly  or  indirectly,  of (a) any  shares of the Stock of such
Person (except  shares  acquired  solely upon the conversion  thereof into other
shares of its Stock)  and (b) any  security  convertible  into,  or any  option,
warrant or other right to acquire,  shares of the Stock of such Person, or (iii)
the  payment  of any  Management  Fees or any  payment  under  the  Tax  Sharing
Agreement or the Management Agreement.

      "Restricted  Subsidiary  Security  Agreement":   the  Second  Amended  and
Restated Restricted Subsidiary Security Agreement,  substantially in the form of
Exhibit H.

      "SEC":  the Securities and Exchange  Commission or any  Governmental  Body
succeeding to the functions thereof.

      "Second Restatement Date": June 29, 1998.

      "Secured Hedging Agreement": collectively (i) any Interest Rate Protection
Agreement entered into by the Borrower with a counterparty that was a Lender (or
an Affiliate  thereof) at the time of entry into such Interest  Rate  Protection
Agreement and (ii) on and after the Merger  Effective  Date,  any Interest Hedge
Agreement (as defined in the Existing PageNet Credit Agreement)  entered into by
PageNet (and assumed by the Borrower) with a  counterparty  that was an Existing
PageNet Lender (or an Affiliate thereof) at the time of entry into such Interest
Hedge Agreement.

      "Security  Agent":  BNY,  in its  capacity  as  security  agent  under the
Security and Intercreditor Agreement.

      "Security Agreement  Supplement":  a Supplement as defined in the Security
and Intercreditor Agreement.

      "Security and  Intercreditor  Agreement":  the Security and  Intercreditor
Agreement, substantially in the form of Exhibit K.

      "Single Employer Plan": any Plan which is not a Multiemployer Plan.

      "Solvent":  with respect to any Person on a particular date, the condition
that on such date,  (i) the fair value of the Property of such Person is greater
than the total amount of liabilities,  including contingent liabilities, of such
Person,  (ii) the present fair salable value of the assets of such Person is not
less than the amount that will be required to pay the probable liability of such
Person on its debts as they become absolute and matured,  (iii) such Person does
not intend to, and does not believe  that it will,  incur  debts or  liabilities
beyond such Person's  ability to pay as such debts and liabilities  mature,  and
(iv) such Person is not engaged in business or a transaction, and is not about


                                       35
<PAGE>

to engage in business or a transaction,  for which such Person's  Property would
constitute an unreasonably small amount of capital.

      "Special Counsel": Bryan Cave LLP, special counsel to BNY.

      "Specified  Percentage":  with  respect  to any (i)  Tranche  A Lender  in
connection with Eurodollar Advances consisting of Tranche A Loans, its Tranche A
Percentage  at such time,  (ii) Tranche B Lender in connection  with  Eurodollar
Advances  consisting of Tranche B Loans,  its Tranche B Percentage at such time,
(iii) Tranche B-1 Lender in connection  with Eurodollar  Advances  consisting of
Tranche B-1 Loans,  its Tranche B-1  Percentage at such time, and (iv) Tranche C
Lender in connection with Eurodollar Advances consisting of Tranche C Loans, its
Tranche C Percentage at such time.

      "Spin-Off": the distribution by PageNet to the holders of its common Stock
who hold such shares prior to the acceptance of the PageNet Exchange Offer of up
to 11.6% of its equity ownership in the Distributed Subsidiary.

      "Springing  Sections":  Sections  2 through  10 and 12  through  14 of the
Security and Intercreditor Agreement.

      "S&P":  Standard & Poor's Ratings Services,  a division of The McGraw-Hill
Companies, Inc., or any successor thereto.

      "Stock": as to any Person, all shares,  interests,  partnership interests,
limited  liability  company  interests,  participations,   rights  in  or  other
equivalents  (however  designated) of such Person's equity (however  designated)
and any rights,  warrants or options  exchangeable  for or convertible into such
shares, interests, participations, rights or other equity.

      "Subordination  Agreement":  the Subordination Agreement,  dated as of May
21,  1996,  among  ACE,  certain   Subsidiaries  of  ACE,  the  Parent  and  the
Administrative Agent.

      "Subsidiary":   as  to  any  Person  (the   "parent")  at  any  date,  any
corporation, limited liability company, partnership, association or other entity
the  accounts  of which  would be  consolidated  with those of the parent in the
parent's  consolidated  financial  statements if such financial  statements were
prepared  in  accordance  with  GAAP as of  such  date,  as  well  as any  other
corporation, limited liability company, partnership, association or other entity
of which securities or other ownership  interests  representing more than 50% of
the equity or more than 50% of the ordinary voting power is or, in the case of a
partnership,  more than 50% of the general partnership interests are, as of such
date, owned, controlled or held by the parent or one or more Subsidiaries of the
parent.

      "Subsidiary Guarantor": each Subsidiary party to the Subsidiary Guaranty.

      "Subsidiary   Guaranty":   the  Second  Amended  and  Restated  Subsidiary
Guaranty, substantially in the form of Exhibit J.



                                       36
<PAGE>

      "Syndication Agent": as defined in the preamble.

      "Tax":  any  present or future  tax,  levy,  impost,  duty,  charge,  fee,
deduction or  withholding of any nature and whatever  called,  by a Governmental
Body,  on  whomsoever  and  wherever  imposed,  levied,  collected,  withheld or
assessed.

      "Tax Sharing  Agreement":  the Tax Sharing  Agreement,  dated as of May 5,
1995, between the Parent and certain of its Subsidiaries.

      "Third Restatement Date": as defined in Recital E.

      "Total Debt": at any date of  determination,  the sum of all  Indebtedness
(other  than  Intercompany  Subordinated  Debt)  of Arch  and its  Subsidiaries,
determined on a Consolidated basis in accordance with GAAP.

      "Total Leverage Ratio": at any date of  determination,  the ratio of Total
Debt to Annualized Operating Cash Flow of the Borrower.

      "Total  Percentage"  means as of any date and with respect to each Lender,
the percentage  equal to a fraction (i) the numerator of which is the sum of (A)
the  Tranche A  Commitment  of such  Lender  on such  date (or,  if there are no
Tranche A Commitments  on such date,  such  Lender's  Tranche A Exposure on such
date) plus (B) the unpaid  principal  balance of such Lender's Tranche B Loan on
such date plus (C) the unpaid  principal  balance of such  Lender's  Tranche B-1
Loan on such date plus (D) the unpaid principal balance of such Lender's Tranche
C Loan on such  date,  and  (ii)  the  denominator  of  which  is sum of (A) the
Aggregate  Tranche A  Commitments  on such date (or,  if there are no  Tranche A
Commitments  on such date,  the Aggregate  Tranche A Exposure on such date) plus
(B) the aggregate unpaid  principal  balance of all Tranche B Loans on such date
plus (C) the aggregate unpaid principal balance of all Tranche B-1 Loans on such
date plus (D) the aggregate unpaid  principal  balance of all Tranche C Loans on
such date.

      "Tranche A Commitment": in respect of any Tranche A Lender, the commitment
of such Lender to make Tranche A Loans and to acquire  participations in Letters
of Credit hereunder,  expressed as an amount  representing the maximum aggregate
amount of such Lender's Tranche A Exposure hereunder,  as such commitment may be
reduced from time to time  pursuant to Section 2.3 or reduced or increased  from
time to time pursuant to  assignments  by or to such Lender  pursuant to Section
11.5.  The initial  amount of the Tranche A Commitment  of each Tranche A Lender
signatory  hereto is set forth on  Schedule  2.1 and the  initial  amount of the
Tranche A Commitment  of each Person which  becomes a Tranche A Lender after the
Third  Restatement  Date  shall be set forth in the  Assignment  and  Acceptance
Agreement pursuant to which it shall have assumed its Tranche A Commitment.  The
aggregate  amount of the Tranche A Commitments on the Third  Restatement Date is
$175,000,000.

      "Tranche A Exposure": with respect to any Tranche A Lender as of any date,
the  sum as of  such  date  of (i) the  outstanding  principal  balance  of such
Lender's Tranche A Loans, plus (ii) such Lender's Letter of Credit Exposure.



                                       37
<PAGE>

      "Tranche A Lenders":  each Lender having a Tranche A Commitment (or, if no
Tranche A Commitments are in effect, a Tranche A Exposure).

      "Tranche A Loan" and "Tranche A Loans": as defined in Section 2.1(a).

      "Tranche A Maturity  Date":  the  earliest to occur of (i) June 30,  2005,
(ii) the Adjusted  Indenture  Maturity  Date, and (iii) such other date on which
the Tranche A Loans shall become due and  payable,  whether by  acceleration  or
otherwise.

      "Tranche A Percentage":  as of any date and with respect to each Tranche A
Lender,  the  percentage  equal to a fraction (i) the  numerator of which is the
Tranche A Commitment  of such Tranche A Lender on such date (or, if there are no
Tranche A Commitments on such date,  such Tranche A Lender's  Tranche A Exposure
on such date), and (ii) the denominator of which is sum of the Aggregate Tranche
A Commitments  on such date (or, if there are no Tranche A  Commitments  on such
date, the Aggregate Tranche A Exposure on such date).

      "Tranche B Lenders":  each Lender having a Tranche B Loan  outstanding and
its successors and assigns.

      "Tranche B Loan" and "Tranche B Loans": as defined in Section 2.1(b).

      "Tranche B Maturity  Date":  the  earliest to occur of (i) June 30,  2005,
(ii) the Adjusted  Indenture  Maturity  Date, and (iii) such other date on which
the Tranche B Loans shall become due and  payable,  whether by  acceleration  or
otherwise.

      "Tranche B Percentage":  as of any date and with respect to each Tranche B
Lender,  the  percentage  equal to a fraction (i) the  numerator of which is the
unpaid principal  balance of the Tranche B Loan of such Tranche B Lender on such
date and (ii) the denominator of which is the aggregate unpaid principal balance
of the Tranche B Loans of all Tranche B Lenders.

      "Tranche B-1 Lenders":  each Lender having a Tranche B-1 Loan  outstanding
and its successors and assigns.

      "Tranche B-1 Loan" and "Tranche B-1 Loans": as defined in Section
2.1(c)(ii).

      "Tranche B-1 Maturity  Date":  the earliest to occur of (i) June 30, 2006,
(ii) the Adjusted  Indenture  Maturity  Date, and (iii) such other date on which
the Tranche B-1 Loans shall become due and payable,  whether by  acceleration or
otherwise.

      "Tranche B-1 Percentage":  as of any date and with respect to each Tranche
B-1 Lender, the percentage equal to a fraction (i) the numerator of which is the
unpaid  principal  balance of the Tranche B-1 Loan of such Tranche B-1 Lender on
such date and (ii) the  denominator of which is the aggregate  unpaid  principal
balance of the Tranche B-1 Loans of all Tranche B-1 Lenders.



                                       38
<PAGE>

      "Tranche C Lenders": each Lender having a Tranche C Loan outstanding,  its
successors and assigns.

      "Tranche C Loan" and "Tranche C Loans": as defined in Section 2.1(d).

      "Tranche C Maturity  Date":  the  earliest to occur of (i) June 30,  2006,
(ii) the Adjusted  Indenture  Maturity  Date, and (iii) such other date on which
the Tranche C Loans shall become due and  payable,  whether by  acceleration  or
otherwise.

      "Tranche  C  Percentage"  means as of any date  and with  respect  to each
Tranche C Lender,  the percentage equal to a fraction (i) the numerator of which
is the unpaid  principal  balance of such Tranche C Lender's Tranche C Loan, and
(ii) the denominator of which is the aggregate unpaid  principal  balance of the
Tranche C Loans of all Tranche C Lenders.

      "Transaction Documents":  collectively, the Loan Documents and the PageNet
Transaction Documents.

      "Transactions":   collectively,   the  transactions  contemplated  by  the
Transaction Documents.

      "United States": the United States of America.

   Section 1.2 Accounting Terms.


      As used in the Loan  Documents  and in any  certificate,  opinion or other
document made or delivered  pursuant  thereto,  accounting  terms not defined in
Section 1.1, and  accounting  terms partly defined in Section 1.1, to the extent
not defined, shall have the respective meanings given to them under GAAP. If any
change  in  GAAP  would  affect  the  computation  of  any  financial  ratio  or
requirement  set forth in this  Agreement,  the Credit  Parties and the Borrower
shall negotiate in good faith to amend such ratio or requirement to reflect such
change in GAAP (subject to the approval of the Required Lenders), provided that,
until so amended, (i) such ratio or requirement shall continue to be computed in
accordance with GAAP prior to such change and (ii) the Borrower shall provide to
the Credit Parties financial  statements and other documents required under this
Agreement  (or such  other  items as the  Administrative  Agent  may  reasonably
request)  setting forth a reconciliation  between  calculations of such ratio or
requirement before and after giving effect to such change.

   Section 1.3 Rules of Interpretation.

      (a) Unless expressly provided in a Loan Document to the contrary,  (i) the
words "hereof",  "herein",  "hereto" and "hereunder" and similar words when used
in each Loan  Document  shall refer to such Loan  Document as a whole and not to
any particular provision thereof, (ii) article,  section,  subsection,  schedule
and exhibit  references  contained  therein shall refer to section,  subsection,
schedule  and  exhibit  thereof  or  thereto,  (iii)  the  words  "include"  and
"including",  shall mean that the same shall be "included,  without limitation",
(iv) any definition of, or reference to, any agreement, instrument,  certificate
or other document herein shall be construed as referring to such agreement,


                                       39
<PAGE>

instrument  or other  document  as from time to time  amended,  supplemented  or
otherwise modified, (v) any reference herein to any Person shall be construed to
include such Person's successors and assigns,  (vi) words in the singular number
include the plural,  and words used therein in the plural  include the singular,
(vii) any  reference  to a time shall refer to such time in New York,  (viii) in
the  computation of periods of time from a specified  date to a later  specified
date,  the word "from" means "from and including" and the words "to" and "until"
each means "to but excluding",  and (ix)  references  therein to a fiscal period
shall refer to that fiscal period of the Borrower.

      (b) Article and Section  headings have been inserted in the Loan Documents
for convenience only and shall not be construed to be a part thereof.

ARTICLE 2. AMOUNT AND TERMS OF EXTENSIONS OF CREDIT.

   Section 2.1 Loans.

      (a)  Tranche A Loans.  Subject to the terms and  conditions  hereof,  each
Tranche  A Lender  severally  agrees  to make  revolving  credit  loans  (each a
"Tranche A Loan" and, as the context may  require,  collectively  with all other
Tranche A Loans of such Tranche A Lender and/or with the Tranche A Loans of each
other Tranche A Lender, the "Tranche A Loans") to the Borrower from time to time
during the  Commitment  Period,  provided that  immediately  after giving effect
thereto  (i) the Tranche A Exposure  of such  Tranche A Lender  shall not exceed
such Tranche A Lender's Tranche A Commitment,  and (ii) the Aggregate  Tranche A
Exposure  shall not  exceed  the  Aggregate  Tranche A  Commitments.  During the
Commitment  Period,  the  Borrower  may  borrow,  prepay in whole or in part and
reborrow under the Aggregate  Tranche A Commitments,  all in accordance with the
terms and conditions of this Agreement.

      (b) Tranche B Loans.  Prior to the Third  Restatement Date, each Tranche B
Lender made a loan to the  Borrower  pursuant to the  Existing  Tranche B Credit
Agreement (each, a "Tranche B Loan" and together with the Tranche B Loan of each
other  Tranche B Lender,  the  "Tranche B Loans").  As of the Third  Restatement
Date, (i) the outstanding  principal amount of each Tranche B Lender's Tranche B
Loan  is as set  forth  on  Schedule  2.1 and  (ii)  the  aggregate  outstanding
principal  balance of the Tranche B Loans  equals  $100,000,000.  No  additional
Tranche B Loans will be made and no  amounts  paid or  prepaid  with  respect to
Tranche B Loans may be reborrowed.

      (c) Tranche B-1 Loans.

         (i) Prior to the Merger  Effective Date,  each Existing  PageNet Lender
made loans to PageNet and/or its  Subsidiaries  pursuant to the Existing PageNet
Credit  Agreement.  Subject to any payments or  prepayments  made after the date
hereof and on or before the Merger  Effective Date, on the Merger Effective Date
the  aggregate  outstanding  principal  balance of the Tranche B-1 Loans will be
$745,000,000.  In addition,  pursuant to the Existing PageNet Credit  Agreement,
each Existing  PageNet Lender assumed a  participation  in the Existing  PageNet
Letters of Credit. Subject to the expiration of any Existing PageNet Letter of


                                       40
<PAGE>

Credit,  any reduction in the face amount  thereof or any  unreimbursed  drawing
thereunder,  in each case  after the date  hereof  and on or before  the  Merger
Effective  Date, on the Merger  Effective  Date the aggregate face amount of the
Existing PageNet Letters of Credit will be $1,555,000.

         (ii) On the Merger Effective Date, the outstanding principal balance of
each Existing PageNet Lender's loans under the Existing PageNet Credit Agreement
will be  converted  to a term loan  hereunder  (each,  a "Tranche  B-1 Loan" and
together  with the  Tranche  B-1 Loan of each  other  Tranche  B-1  Lender,  the
"Tranche B-1 Loans"),  and each  Existing  PageNet  Lender will be a Tranche B-1
Lender hereunder.  As of the Third  Restatement Date, the outstanding  principal
amount of each Tranche B-1 Lender's Tranche B-1 Loan is as set forth on Schedule
2.1 as such Schedule shall be  supplemented by the  Administrative  Agent on the
Merger Effective Date.

         (iii) Pursuant to Section 2.6(j),  after the Merger  Effective Date, if
there are any unreimbursed drawings under any Existing Page Net Letter of Credit
and a Tranche  B-1  Lender  pays to the  PageNet  Letter of  Credit  Issuer  its
participation amount thereof in accordance with Section 2.6(j) no later than the
time required for payment as provided in the Existing PageNet Credit  Agreement,
such Tranche B-1  Lender's  participation  amount shall be deemed an  additional
Tranche  B-1 Loan made by such  Tranche  B-1  Lender  for the  purposes  of this
Agreement.  To the extent  that a Tranche B-1 Lender does not pay to the PageNet
Letter of Credit  Issuer  such  participation  amount by such time,  the PageNet
Letter of Credit  Issuer  shall be deemed  to be a  Tranche  B-1  Lender  with a
Tranche  B-1 Loan equal to the  participation  amount  not  timely  paid by such
defaulting  Tranche B-1 Lender.  To the extent that such defaulting  Tranche B-1
Lender thereafter pays its participation  amount to the PageNet Letter of Credit
Issuer,  the PageNet  Letter of Credit  Issuer shall be deemed to assign to such
Tranche B-1 Lender the applicable  portion of its Tranche B-1 Loan.  Neither the
PageNet Letter of Credit Issuer nor such Tranche B-1 Lender shall be required to
execute and deliver to the  Administrative  Agent an Assignment  and  Acceptance
Agreement or be required to pay the assignment fee provided in Section  11.5(b),
provided, however, that until the Administrative Agent receives a written notice
of such deemed  assignment,  it shall be entitled to treat the PageNet Letter of
Credit  Issuer as the holder of the Tranche B-1 Loans deemed made by it pursuant
to this clause (iii) for all purposes under the Loan Documents.

         (iv)  Subject to clause (iii) above,  no  additional  Tranche B-1 Loans
will be made and no amounts  paid or prepaid  with  respect to Tranche B-1 Loans
may be reborrowed.

      (d) Tranche C Loans.  Prior to the Third  Restatement Date, each Tranche C
Lender made a loan to the Borrower  (each,  a "Tranche C Loan" and together with
the Tranche C Loan of each other Tranche C Lender, the "Tranche C Loans"). As of
the Third Restatement Date, (i) the outstanding principal amount of each Tranche
C Lender's Tranche C Loan is as set forth on Schedule 2.1 and (ii) the aggregate
outstanding  principal  balance of the Tranche C Loans equals  $302,940,000.  No
additional  Tranche C Loans  will be made and no amounts  paid or  prepaid  with
respect to Tranche C Loans may be reborrowed.



                                       41
<PAGE>

   Section 2.2 Procedure for Borrowing Tranche A Loans.

      (a) The Borrower may borrow under the Aggregate  Tranche A Commitments  on
any Business Day during the Commitment Period,  provided that the Borrower shall
notify the  Administrative  Agent (by  telephone or fax) no later than 1:00 p.m.
(A) three Business Days prior to the requested Credit Extension Date in the case
of Eurodollar  Advances and (B) one Business Day prior to the  requested  Credit
Extension  Date in the case of ABR  Advances,  in each case  specifying  (1) the
aggregate  principal  amount  to be  borrowed  under  the  Aggregate  Tranche  A
Commitments, (2) the requested Credit Extension Date, (3) whether such borrowing
is to consist of one or more Eurodollar Advances, ABR Advances, or a combination
thereof  and  (4) if the  borrowing  is to  consist  of one or  more  Eurodollar
Advances,  the length of the Interest Period or Periods for each such Eurodollar
Advance (subject to the provisions of the definition of Interest  Period).  Each
such notice shall be  irrevocable  and confirmed  immediately by delivery to the
Administrative  Agent  of a Credit  Request.  Each  ABR  Advance  shall be in an
aggregate  principal  amount  equal  to  $100,000  or such  amount  plus a whole
multiple of $100,000 in excess  thereof,  or, if less,  the unused amount of the
Aggregate  Tranche A  Commitments,  and each  Eurodollar  Advance shall be in an
aggregate  principal  amount  equal  to  $500,000  or such  amount  plus a whole
multiple of $100,000 in excess thereof.  If, with respect to any borrowing,  the
Borrower shall fail to give due notice as provided in this Section, the Borrower
shall be deemed to have selected an ABR Advance for such borrowing.

      (b) Upon  receipt  of such  notice of  borrowing  from the  Borrower,  the
Administrative  Agent shall promptly notify each Tranche A Lender of such notice
of borrowing.  Subject to its receipt of the notice referred to in the preceding
sentence, each Tranche A Lender will make the amount of its Tranche A Percentage
of each such borrowing available to the Administrative  Agent for the account of
the  Borrower  at the Payment  Office not later than 2:30 p.m.  on the  relevant
Credit Extension Date requested by the Borrower in funds  immediately  available
to the Administrative Agent at such office. The amounts so made available to the
Administrative  Agent on such Credit  Extension  Date will then,  subject to the
satisfaction  of the terms and conditions of this Agreement as determined by the
Administrative  Agent,  be made  available  on such date to the  Borrower by the
Administrative  Agent at the  Payment  Office by  crediting  the  account of the
Borrower on the books of such office with the aggregate of said amounts received
by the Administrative Agent. Unless the Administrative Agent shall have received
prior notice from a Tranche A Lender (by telephone or otherwise,  such notice to
be confirmed by telecopy or other  writing)  that it will not make  available to
the  Administrative  Agent  its  Tranche  A  Percentage  of any  Tranche A Loans
requested by the Borrower, the Administrative Agent may assume that such Tranche
A Lender  has made  such  share  available  to the  Administrative  Agent on the
requested Credit  Extension Date in accordance with this Section,  provided that
such  Tranche  A Lender  received  notice  of the  proposed  borrowing  from the
Administrative  Agent, and the  Administrative  Agent may, in reliance upon such
assumption,  make  available  to the  Borrower on such Credit  Extension  Date a
corresponding  amount. If and to the extent such Tranche A Lender shall not have
so made such share available to the Administrative  Agent, such Tranche A Lender
and the Borrower severally agree to pay to the Administrative Agent forthwith on
demand  such  corresponding  amount (to the extent  not  previously  paid by the
other), together with interest thereon for each day from the date such amount is


                                       42
<PAGE>

made  available  to the  Borrower  until  the date  such  amount  is paid to the
Administrative  Agent, at a rate per annum equal to, in the case of the Borrower
the applicable  interest rate set forth in Section 3.1, and, in the case of such
Tranche A Lender,  the Federal Funds Rate in effect on such date (as  determined
by the Administrative  Agent). Such payment by the Borrower,  however,  shall be
without prejudice to its rights against such Tranche A Lender. If such Tranche A
Lender shall pay to the  Administrative  Agent such corresponding  amount,  such
amount so paid (excluding,  however,  any interest payable on such amount) shall
constitute  such  Lender's  Tranche  A Loan as part of such  Tranche A Loans for
purposes of this Agreement, which Loan shall be deemed to have been made by such
Tranche A Lender on the  Credit  Extension  Date  applicable  to such  Tranche A
Loans.

      (c) If a Tranche A Lender  makes a new Tranche A Loan to the Borrower on a
Credit Extension Date on which the Borrower is to repay a Tranche A Loan of such
Tranche A Lender of the same type or make a scheduled  amortization payment on a
Loan of such Lender of the same type,  such Lender  shall apply the  proceeds of
such  new  Tranche  A Loan to make  such  repayment  or  scheduled  amortization
payment,  and only the  excess  of the  proceeds  of such new Loan over the Loan
being repaid or scheduled amortization payment being made need be made available
to the Administrative Agent.

      (d) Notices of  borrowing  given by  telephone  shall be deemed given when
made by telephone and the Administrative  Agent and the Lenders may rely thereon
whether or not such notice is confirmed by the delivery of a Credit Request.

   Section 2.3 Termination or Reduction of the Aggregate Tranche A Commitments.

      (a) Voluntary Reductions. The Borrower shall have the right, upon at least
three Business Days' prior written notice to the  Administrative  Agent,  at any
time  to  terminate,  or from  time to time  reduce,  the  Aggregate  Tranche  A
Commitments,  provided  that the  Borrower  shall not  terminate  or reduce  the
Aggregate  Tranche A  Commitments  if,  after  giving  effect to any  concurrent
prepayment of the Tranche A Loans in accordance  with Section 2.5, the Aggregate
Tranche A Exposure would exceed the Aggregate  Tranche A  Commitments.  Any such
reduction  shall be in the  amount of  $1,000,000  or such  amount  plus a whole
multiple of $100,000.

      (b)  Mandatory  Scheduled  Reductions.  On  the  dates  set  forth  in the
following  table,  the  Aggregate  Tranche A  Commitments  shall be  permanently
reduced in the following  percentages of the Aggregate  Tranche A Commitments as
of the Third Restatement Date:



                                       43
<PAGE>

===============================================================================
       Date            Percentage               Date               Percentage
-------------------------------------------------------------------------------
 September 30, 2000       5.0%              March 31, 2003            5.0%
-------------------------------------------------------------------------------
 December 31, 2000        5.0%              June 30, 2003             5.0%
-------------------------------------------------------------------------------
 March 31, 2001           5.0%              September 30, 2003        5.0%
-------------------------------------------------------------------------------
 June 30, 2001            5.0%              December 31, 2003         5.0%
-------------------------------------------------------------------------------
 September 30, 2001       5.0%              March 31, 2004            5.0%
-------------------------------------------------------------------------------
 December 31, 2001        5.0%              June 30, 2004             5.0%
-------------------------------------------------------------------------------
 March 31, 2002           5.0%              September 30, 2004        5.0%
-------------------------------------------------------------------------------
 June 30, 2002            5.0%              December 31, 2004         5.0%
-------------------------------------------------------------------------------
 September 30, 2002       5.0%              March 31, 2005            5.0%
-------------------------------------------------------------------------------
 December 31, 2002        5.0%              June 30, 2005             5.0%
===============================================================================

      (c) Mandatory Termination. Notwithstanding anything to the contrary in any
Loan  Document,  the  Aggregate  Tranche A  Commitments  shall  terminate on the
Tranche A Maturity Date.

      (d) Other Mandatory Reductions.  If after applying all or any portion of a
reduction  or  prepayment  required by Section  2.4 hereof,  the Tranche B Loans
shall  have been paid in full,  the  Aggregate  Tranche A  Commitments  shall be
permanently reduced in an amount equal to (i) the Aggregate Prepayment/Reduction
Amount to be applied as of such date  pursuant to Section  2.4 hereof  (less any
portion of such amount  which is applied to the  Tranche B Loans)  minus (ii) an
amount  equal  to the  sum of (x)  the  product  of the  Aggregate  Tranche  B-1
Percentage  and the  Aggregate  Prepayment/Reduction  Amount to be applied as of
such date plus (y) the product of the  Aggregate  Tranche C  Percentage  and the
Aggregate Prepayment/Reduction Amount to be applied as of such date.

      (e)  Reductions  of  Letter  of Credit  Commitment.  The  Letter of Credit
Commitment  shall not be  reduced  until  such time as the  Aggregate  Tranche A
Commitments shall equal such Letter of Credit  Commitment,  and thereafter shall
in each case be  reduced,  automatically,  by a sum equal to the  amount of each
such reduction in the Aggregate Tranche A Commitments.

      (f) In General.  Each  reduction of the  Aggregate  Tranche A  Commitments
shall be made by reducing each Lender's  Tranche A Commitment by an amount equal
to such Lender's  Tranche A Percentage of such reduction,  and each reduction of
the Aggregate  Tranche A Commitments  made pursuant to Section  2.3(a) or 2.3(d)
shall be applied to the remaining Aggregate Tranche A Commitments reductions set
forth in Section 2.3(b) on a pro rata basis.  Simultaneously with each reduction
of the Aggregate  Tranche A  Commitments,  the Borrower shall pay the Commitment
Fee accrued on the amount by which the Aggregate Tranche A Commitments have been
reduced.

   Section 2.4 Application of Proceeds.

      On or before each date set forth below,  the Borrower shall prepay (i) the
aggregate  unpaid  principal amount of the Tranche B Loans by an amount equal to


                                       44
<PAGE>

the product of (x) the amount set forth below and  applicable  to such date (the
"Aggregate  Prepayment/Reduction  Amount")  and  (y)  the  Aggregate  Tranche  B
Percentage,  (ii) the aggregate unpaid principal amount of the Tranche B-1 Loans
by an amount  equal to the  product  of (x) the  Aggregate  Prepayment/Reduction
Amount and (y) the  Aggregate  Tranche B-1  Percentage,  and (iii) the aggregate
unpaid principal amount of the Tranche C Loans by an amount equal to the product
of (x) the Aggregate Prepayment/Reduction Amount and (y) the Aggregate Tranche C
Percentage:

      (a) on the last day of the Reinvestment  Period for each Disposition by an
amount  equal to 100% of the  Adjusted  Net Cash  Proceeds  with respect to such
Disposition;

      (b) for each fiscal  year prior to the fiscal  year in which the  Existing
Arch Senior Note Termination Date occurs,  commencing with the fiscal year ended
December 31, 1999, on March 31st of each immediately  succeeding fiscal year, by
an amount  equal to (i) if the Total  Leverage  Ratio at the end of such  fiscal
year is greater than  4.00:1.00,  the lesser of (A) 80% of Excess Cash Flow (the
"Maximum Excess Cash Flow Amount") and (B) an amount equal to the sum of (1) the
portion of the  Maximum  Excess  Cash Flow  Amount  which will  reduce the Total
Leverage Ratio to 4.00:1:00 at the end of such fiscal year,  plus (2) 50% of the
amount equal to Excess Cash Flow minus such portion referred to in clause (B)(1)
above,  or (ii) if the Total  Leverage  Ratio at the end of such  fiscal year is
less than or equal to 4.00:1.00, 50% of Excess Cash Flow;

      (c) on the last day of the replacement or repair period  described  below,
in an amount equal to all  Applicable  Proceeds (i) in excess of amounts used to
replace or repair any  properties  or (ii) which are not used or  designated  to
replace or repair  properties  within one year after receipt  thereof,  provided
that the Borrower or the applicable  Subsidiary  Guarantor  shall have commenced
the  restoration  or  replacement  process  (including the making of appropriate
filings and requests for  approval)  within 45 days after such casualty or after
the  receipt  of any  such  condemnation  proceeds,  as the  case  may  be,  and
diligently pursues the same through completion; and

      (d) in the event that the PageNet Merger is not consummated and the Parent
or any of its  Affiliates  receives  a breakup or similar  fee  pursuant  to the
Merger Agreement,  on the last day of the six month period following the receipt
of such  breakup or similar  fee, in an amount  equal to such breakup or similar
fee so received  in excess of the amount  used  during such six month  period to
repurchase Parent Discount Notes, Parent Subordinated  Debentures or Arch Senior
Notes.

   Section 2.5 Scheduled Repayments of Loans; Prepayments of Loans.


      (a)  Scheduled  Repayment of Loans.  The aggregate  outstanding  principal
balance of the  Tranche B Loans,  the  Tranche B-1 Loans and the Tranche C Loans
shall amortize as follows:

         (i) The aggregate  outstanding principal balance of the Tranche B Loans
shall be due and payable on the following dates in the following  percentages of
the  aggregate  outstanding  principal  balance of the Tranche B Loans as of the
Third Restatement Date:



                                       45
<PAGE>

===============================================================================
       Date            Percentage               Date               Percentage
-------------------------------------------------------------------------------
 September 30, 2000       2.500%            March 31, 2003            5.625%

-------------------------------------------------------------------------------
 December 31, 2000        2.500%            June 30, 2003             5.625%
-------------------------------------------------------------------------------
 March 31, 2001           3.125%            September 30, 2003        5.625%
-------------------------------------------------------------------------------
 June 30, 2001            3.125%            December 31, 2003         5.625%
-------------------------------------------------------------------------------
 September 30, 2001       3.125%            March 31, 2004            6.875%
-------------------------------------------------------------------------------
 December 31, 2001        3.125%            June 30, 2004             6.875%
-------------------------------------------------------------------------------
 March 31, 2002           4.375%            September 30, 2004        6.875%
-------------------------------------------------------------------------------
 June 30, 2002            4.375%            December 31, 2004         6.875%
-------------------------------------------------------------------------------
 September 30, 2002       4.375%            March 31, 2005            7.500%
-------------------------------------------------------------------------------
 December 31, 2002        4.375%            Tranche B           the remaining
                                            Maturity Date       unpaid principal
                                                                amount of the
                                                                Tranche B Loans
                                                                together with
                                                                all accrued and
                                                                unpaid interest
                                                                thereon.
===============================================================================

         (ii) (A) The aggregate outstanding principal balance of the Tranche B-1
Loans  shall  be  due  and  payable  on the  following  dates  in the  following
percentages of the aggregate  outstanding  principal  balance of the Tranche B-1
Loans as of the Merger Effective Date as adjusted pursuant to clause (B) below:

===============================================================================
       Date            Percentage               Date               Percentage
-------------------------------------------------------------------------------
 March 31, 2001           3.125%            December 31, 2003         4.375%
-------------------------------------------------------------------------------
 June 30, 2001            3.125%            March 31, 2004            5.000%
-------------------------------------------------------------------------------
 September 30, 2001       3.125%            June 30, 2004             5.000%
-------------------------------------------------------------------------------
 December 31, 2001        3.125%            September 30, 2004        5.000%
-------------------------------------------------------------------------------
 March 31, 2002           3.750%            December 31, 2004         5.000%
-------------------------------------------------------------------------------
 June 30, 2002            3.750%            March 31, 2005            5.000%
-------------------------------------------------------------------------------
 September 30, 2002       3.750%            June 30, 2005             5.000%
-------------------------------------------------------------------------------
 December 31, 2002        3.750%            September 30, 2005        5.000%
-------------------------------------------------------------------------------
 March 31, 2003           4.375%            December 31, 2005         5.000%
-------------------------------------------------------------------------------
 June 30, 2003            4.375%            March 31, 2006            7.500%
-------------------------------------------------------------------------------
 September 30, 2003       4.375%            Tranche B-1        the remaining
                                            Maturity Date      unpaid principal
                                                               amount of the
                                                               Tranche B-1 Loans
                                                               together with all
                                                               accrued and
                                                               unpaid interest
                                                               thereon.
===============================================================================

            (B) In the event that the Tranche B-1 Lenders  make  payments to the
PageNet  Letter of Credit  Issuer  pursuant to Section  2.6(j) in respect of any
unreimbursed  drawing of an Existing PageNet Letter of Credit, (1) such payments
will be deemed to be  Tranche  B-1 Loans  which were  outstanding  on the Merger
Effective  Date for  purposes of clause (ii) (A) above and (2) if such  payments


                                       46
<PAGE>

are made after the date on which any amortization payments were due under clause
(ii) (A)  above,  the amount of such  required  amortization  payments  shall be
recalculated  taking into account such payments to the PageNet  Letter of Credit
Issuer as provided in clause (ii) (B)(1) above and within one Business Day after
such payments,  the Borrower shall pay to the Administrative  Agent, for the pro
rata account of the Tranche B-1 Lenders,  the difference  (if positive)  between
(x) the required  amortization  payments as so recalculated and (y) the required
amortization payments actually made.

         (iii) The  aggregate  outstanding  principal  balance of the  Tranche C
Loans  shall  be  due  and  payable  on the  following  dates  in the  following
percentages  of the  aggregate  outstanding  principal  balance of the Tranche C
Loans as of the Second Restatement Date:

================================= ============================================
              Date                                 Percentage
--------------------------------- --------------------------------------------
       December 31, 2000                              1.0%
--------------------------------- --------------------------------------------
       December 31, 2001                              1.0%
--------------------------------- --------------------------------------------
       December 31, 2002                              1.0%
--------------------------------- --------------------------------------------
       December 31, 2003                              1.0%
--------------------------------- --------------------------------------------
       December 31, 2004                              1.0%
--------------------------------- --------------------------------------------
       December 31, 2005                              1.0%
--------------------------------- --------------------------------------------
    Tranche C Maturity Date       the remaining unpaid principal amount of the
                                  Tranche C Loans together with all accrued and
                                  unpaid interest thereon
================================= ============================================

      (b) Voluntary  Prepayments.  The Borrower  may, at its option,  prepay the
Loans,  in whole or in part, at any time and from time to time, by notifying the
Administrative  Agent in writing at least one Business Day prior to the proposed
prepayment  date in the case of ABR Advances,  and at least three  Business Days
prior to the proposed  prepayment  date in the case of Eurodollar  Advances,  in
each case  specifying (i) whether the Loans to be prepaid consist of (A) Tranche
A Loans,  Tranche B Loans,  Tranche B-1 Loans,  Tranche C Loans or a combination
thereof,  and (B) an ABR Advance, a Eurodollar Advance or a combination thereof,
(ii) the  amount to be prepaid  and (iii) the date of  prepayment.  Such  notice
shall be irrevocable  and the payment  amount  specified in such notice shall be
due and payable on the date  specified,  together  with accrued  interest to the
date of such payment on the amount  prepaid.  Upon  receipt of such notice,  the
Administrative  Agent shall  promptly  notify  each  Lender in respect  thereof.
Partial  prepayments of the Loans shall be in an aggregate  principal  amount of
$1,000,000  or such amount plus a whole  multiple of $100,000  or, if less,  the
outstanding  principal balance of the Loans.  After giving effect to any partial
prepayment  with respect to Eurodollar  Advances which were made (whether as the
result of a borrowing or a  conversion)  on the same date and which had the same
Interest Period,  the outstanding  principal amount of such Eurodollar  Advances
made  (whether as the result of a borrowing or a  conversion)  shall not be less
than (subject to Section 3.3)  $500,000.  In the event that the Borrower makes a
prepayment of Tranche C Loans pursuant to this subsection (b) during the periods
set forth below, the Borrower shall pay to the Administrative Agent, for the pro
rata account of each Tranche C Lender, together with such prepayment, a fee (the
"Prepayment  Fee")  in an  amount  equal  to the  following  percentages  of the
principal amount of such prepayment:



                                       47
<PAGE>

========================================================= ===================
                         Period                                  Fee
--------------------------------------------------------- -------------------
December 1, 1999 through May 29, 2000                           1.50%
--------------------------------------------------------- -------------------
May 30, 2000 through November 26, 2000                          1.00%
--------------------------------------------------------- -------------------
November 27, 2000 through May 26, 2001                          0.50%
--------------------------------------------------------- -------------------
May 27, 2001 and thereafter                                     0.00%
========================================================= ===================

      (c)  Mandatory  Prepayments  Relating  to  Reductions  or  Termination  of
Commitments.  Simultaneously  with each  reduction or  termination  (pursuant to
Section  2.3(c)  or  otherwise)  of the  Aggregate  Tranche A  Commitments,  the
Borrower  shall  prepay or repay the Tranche A Loans by the  amount,  if any, by
which the  Aggregate  Tranche A Exposure  exceeds  the  amount of the  Aggregate
Tranche A Commitments as so reduced or terminated.

      (d) Other Mandatory  Prepayments.  The Tranche B Loans, Tranche B-1 Loans,
and Tranche C Loans shall be prepaid at the times and in the amounts required by
Section 2.4.

      (e)  Application of  Prepayments.  Each prepayment of the Tranche B Loans,
Tranche B-1 Loans and Tranche C Loans pursuant to Sections 2.4(a),  (b), (c) and
(d) Section  2.5(b)  shall be applied  against  the  remaining  installments  of
principal  required to be paid  pursuant  to Section  2.5(a)(i),  2.5(a)(ii)  or
2.5(a)(iii), as applicable, pro rata against such installments.

      (f)  In  General.   Unless  otherwise  specified  by  the  Borrower,  each
prepayment  of  the  Loans  shall  first  be  applied  to ABR  Advances.  If any
prepayment is made in respect of any  Eurodollar  Advance,  in whole or in part,
prior to the last day of the applicable  Interest Period, the Borrower agrees to
indemnify the Lenders in accordance with Section 3.4.

   Section 2.6 Letters of Credit.

      (a)  Availability;  Procedure.  (i) The Borrower may request the Letter of
Credit Issuer to issue standby letters of credit (the "Letters of Credit"; each,
individually, a "Letter of Credit") during the period from the Third Restatement
Date to the tenth  Business Day prior to the Tranche A Maturity  Date,  provided
that  immediately  after the  issuance  of each  Letter of Credit  the Letter of
Credit  Exposure of all Tranche A Lenders  would not exceed the Letter of Credit
Commitment  and the Aggregate  Tranche A Exposure would not exceed the Aggregate
Tranche A  Commitments.  To request  the  issuance  of a Letter of  Credit,  the
Borrower shall notify the  Administrative  Agent and the Letter of Credit Issuer
by the delivery of a Credit Request,  which shall be sent by facsimile and shall
be irrevocable  (confirmed promptly, and in any event within five Business Days,
by the delivery to the Administrative  Agent of a Credit Request manually signed
by the  Borrower),  at least three  Business Days prior to the requested date of
issuance,  specifying  (A) the  beneficiary  of such  Letter of Credit,  (B) the
Borrower's proposal as to the conditions under which a drawing may be made under
such Letter of Credit and the  documentation  to be required in respect thereof,
(C) the maximum amount to be available under such Letter of Credit,  and (D) the
requested  dates of  issuance  and  expiration.  Such  Credit  Request  shall be
accompanied  by a duly completed  application  for such Letter of Credit on such
forms as may be made  available from time to time by the Letter of Credit Issuer


                                       48
<PAGE>

and such other certificates, documents (including a reimbursement agreement) and
other  information  as may be  required  by  the  Letter  of  Credit  Issuer  in
accordance with its customary  procedures  (collectively,  the "Letter of Credit
Documentation").  Upon  receipt of such Credit  Request from the  Borrower,  the
Administrative  Agent shall promptly notify each Lender thereof.  Subject to the
satisfaction of the terms and conditions of this Agreement, the Letter of Credit
Issuer shall issue each requested Letter of Credit. In the event of any conflict
between the provisions of this Agreement and any Letter of Credit Documentation,
the provisions of this Agreement shall control.

      (b) Terms of Letters of Credit.  Each Letter of Credit shall (i) be issued
for the account of the Borrower  and in support of  obligations,  contingent  or
otherwise,  of the Borrower or any Subsidiary  arising in the ordinary course of
business,  and (ii) have an  expiration  date that  shall be not later  than the
earlier  of (A)  twelve  months  after the date of  issuance  thereof or (B) ten
Business Days before the Tranche A Maturity  Date,  provided that the expiration
date of such  Letter of Credit may be  extended  or such Letter of Credit may be
renewed,  provided,  further,  that any renewal,  or any extension of any expiry
date,  of a Letter of Credit  shall  constitute  the  issuance of such Letter of
Credit for all purposes of this Agreement.

      (c) Letter of Credit  Participations.  Immediately  upon the issuance of a
Letter of Credit,  the Letter of Credit  Issuer shall be deemed to have sold and
transferred to each Tranche A Lender,  and each Tranche A Lender shall be deemed
to have irrevocably and  unconditionally  purchased and received from the Letter
of Credit  Issuer,  without  recourse or  warranty,  an  undivided  interest and
participation,  to the extent of such Lender's Tranche A Percentage  thereof, in
such Letter of Credit and the  obligations of the Borrower with respect  thereto
and any  security  therefor  and any  guaranty  pertaining  thereto  at any time
existing.

      (d)  Drawings  on  Letters of Credit.  The Letter of Credit  Issuer  shall
promptly  notify  (i) each  Tranche  A Lender of the  Letter of Credit  Issuer's
receipt of a drawing  request under any Letter of Credit,  stating the amount of
such Lender's Tranche A Percentage of such drawing request and the date on which
such request will be honored and (ii) the Borrower of the amount of such drawing
request and the date on which such request  will be honored.  Any failure of the
Letter of Credit  Issuer to give or any delay in the  Letter of Credit  Issuer's
giving any such  notice  shall not release or diminish  the  obligations  of the
Borrower or any Tranche A Lender hereunder.  In determining whether to pay under
any Letter of Credit,  the Letter of Credit  Issuer shall have no  obligation to
any Tranche A Lender or the Borrower  other than to confirm  that any  documents
required to be  delivered  under such Letter of Credit have been  delivered  and
that they appear to comply on their face with the requirements of such Letter of
Credit. In the absence of gross negligence or willful  misconduct on the part of
the Letter of Credit Issuer, the Letter of Credit Issuer shall have no liability
to any Tranche A Lender or the  Borrower  for any action  taken or omitted to be
taken by it under or in connection with any Letter of Credit, including any such
action negligently taken or negligently omitted to be taken by it.

      (e) Reimbursement.  The Borrower shall pay to the Administrative Agent for
the account of the Letter of Credit Issuer on demand  therefor,  in  immediately
available funds, the amount of all Reimbursement Obligations owing to the Letter
of Credit Issuer under any Letter of Credit,  together with interest  thereon as
provided in Section 3.1,  irrespective  of any claim,  setoff,  defense or other


                                       49
<PAGE>

right that the Borrower may have at any time against the Letter of Credit Issuer
or any other  Person.  In the event that the Letter of Credit  Issuer  makes any
payment  under any Letter of Credit and the Borrower  shall not have repaid such
amount to the Letter of Credit  Issuer  when due,  the  Letter of Credit  Issuer
shall  promptly  notify  each  Tranche A Lender of such  failure,  and each such
Lender shall promptly and unconditionally  pay to the Administrative  Agent, for
the account of the Letter of Credit Issuer,  the amount of such Lender's Tranche
A Percentage of such payment in immediately  available funds on the Business Day
the Letter of Credit  Issuer so  notifies  such  Lender if such  notice is given
prior to 12:00 Noon or, if such notice is given  after  12:00 Noon,  such Lender
shall make its Tranche A Percentage  of such payment  available to the Letter of
Credit Issuer prior to 12:00 Noon on the next succeeding Business Day.

      (f) Lenders' Obligations.  If and to the extent any Tranche A Lender shall
not make such  Lender's  Tranche A Percentage of any  Reimbursement  Obligations
available  to the Letter of Credit  Issuer when due in  accordance  with Section
2.6(e),  such Lender agrees to pay, on demand,  interest to the Letter of Credit
Issuer on such  unpaid  amount  for each day from the date such  payment  is due
until the date such  amount is paid in full to the Letter of Credit  Issuer at a
rate per  annum  equal  to the  greater  of the  Federal  Funds  Rate and a rate
determined by the Letter of Credit Issuer in  accordance  with banking  industry
rates on  interbank  compensation.  The  obligations  of the Lenders  under this
Section  2.6(f) are several and not joint or joint and several,  and the failure
of any Lender to make  available  to the Letter of Credit  Issuer its  Tranche A
Percentage of any Reimbursement  Obligations when due in accordance with Section
2.6(e)  shall not relieve any other Lender of its  obligation  hereunder to make
its Tranche A Percentage of such Reimbursement  Obligations so available when so
due, but no Lender shall be  responsible  for the failure of any other Lender to
make such other Lender's Tranche A Percentage of such Reimbursement  Obligations
so available when so due.

      (g) Rescission. Whenever the Letter of Credit Issuer receives a payment of
a  Reimbursement  Obligation  from or on behalf of the  Borrower as to which the
Letter  of  Credit  Issuer  has  received  any  payment  from a Tranche A Lender
pursuant to Section  2.6(e),  the Letter of Credit Issuer shall  promptly pay to
such  Lender an amount  equal to such  Lender's  Tranche  A  Percentage  of such
payment from or on behalf of the Borrower. If any payment by or on behalf of the
Borrower and received by the Letter of Credit  Issuer with respect to any Letter
of Credit is  rescinded  or must  otherwise  be returned by the Letter of Credit
Issuer for any reason and the Letter of Credit Issuer has paid to any Lender any
portion  thereof,  each such Lender  shall  forthwith  pay over to the Letter of
Credit  Issuer an amount  equal to such  Lender's  Tranche A  Percentage  of the
amount that must be so returned by the Letter of Credit Issuer.

      (h)  Expenses.  Each  Tranche A Lender,  upon the  demand of the Letter of
Credit Issuer,  shall  reimburse the Letter of Credit Issuer,  to the extent the
Letter of Credit  Issuer has not been  reimbursed  by the Borrower  after demand
therefor, for the reasonable costs and expenses (including reasonable attorneys'
fees) incurred by the Letter of Credit Issuer in connection  with the collection
of  amounts  due  under,  and the  preservation  and  enforcement  of any rights
conferred  by, any Letter of Credit or the  performance  of the Letter of Credit
Issuer's  obligations as issuer of the Letters of Credit under this Agreement in
respect  thereof,  to the extent of such  Lender's  Tranche A Percentage  of the
amount of such costs and expenses,  provided,  however,  that no Lender shall be


                                       50
<PAGE>

liable for the payment of any portion of such liabilities,  obligations, losses,
damages, penalties,  actions, judgments, suits, costs, expenses or disbursements
to the extent the same result from the gross negligence or willful misconduct of
the Letter of Credit Issuer.  The Letter of Credit Issuer shall refund any costs
and expenses reimbursed by such Lender that are subsequently  recovered from the
Borrower in an amount equal to such Lender's Tranche A Percentage thereof.

      (i) Obligations Absolute.  The obligation of the Borrower to reimburse the
Letter of Credit Issuer pursuant to this Section 2.6, and the obligation of each
Tranche A Lender to make  available  to the Letter of Credit  Issuer the amounts
set forth in this Section 2.6 shall be absolute,  unconditional  and irrevocable
under any and all circumstances, shall be made without reduction for any setoff,
counterclaim or other deduction of any nature whatsoever, may not be terminated,
suspended  or  delayed  for any reason  whatsoever,  shall not be subject to any
qualification  or exception and shall be made in  accordance  with the terms and
conditions  of this  Agreement  under all  circumstances,  including  any of the
following  circumstances:  (1) any lack of  validity or  enforceability  of this
Agreement or any of the other Loan  Documents,  (2) the  existence of any claim,
setoff,  defense or other right that the Borrower may have at any time against a
beneficiary named in a Letter of Credit,  any transferee of any Letter of Credit
(or any Person for whom any such transferee may be acting), the Letter of Credit
Issuer,  any  Lender  or any  other  Person,  whether  in  connection  with this
Agreement,  any other Loan  Document,  any Letter of  Credit,  the  transactions
contemplated in the Loan Documents or any unrelated transactions  (including any
underlying  transaction  between the Borrower and the  beneficiary  named in any
such  Letter of  Credit),  (3) any  draft,  certificate  or any  other  document
presented under any Letter of Credit proving to be forged,  fraudulent,  invalid
or  insufficient  in any  respect  or any  statement  therein  being  untrue  or
inaccurate in any respect, (4) the surrender or impairment of any Collateral for
the  performance or observance of any of the terms of any of the Loan Documents,
or (5) the occurrence of any Default or Event of Default.  Nothing  contained in
this  Section  2.6(i),  however,  shall  require  the  Borrower or any Lender to
reimburse  the Letter of Credit Issuer for any amounts that become due by reason
of the Letter of Credit Issuer's gross negligence or willful misconduct.

      (j) Concerning the Existing  PageNet Letters of Credit.  In the event that
any Existing  PageNet Letters of Credit are in effect after the Merger Effective
Date,  the obligation of the Tranche B-1 Lenders to reimburse the PageNet Letter
of Credit Issuer in respect of unreimbursed drawings thereunder will be governed
by, and the PageNet  Letter of Credit Issuer shall have such rights  against the
Existing PageNet Lenders with respect to such  reimbursement as are provided by,
the provisions of the Existing PageNet Credit Agreement as in effect immediately
prior to the Merger  Effective  Date.  The amount paid by each Existing  PageNet
Lender to the PageNet Letter of Credit Issuer in respect thereof shall be deemed
to be an  additional  Tranche  B-1 Loan  made by such  Tranche  B-1  Lender  for
purposes of this  Agreement.  The PageNet Letter of Credit Issuer shall give the
Administrative  Agent prompt written notice in the event that there is a drawing
under an Existing  PageNet  Letter of Credit  specifying the amount thereof that
has not been  reimbursed  and the amounts  paid to it by each  Existing  PageNet
Lender.  The PageNet  Letter of Credit  Issuer shall  promptly  supplement  such
notice from time to time as necessary.



                                       51
<PAGE>

   Section 2.7 Use of  Proceeds.

      The proceeds of the Extensions of Credit shall be used solely, directly or
indirectly,  (i)  for  general  corporate  purposes  of  the  Borrower  and  its
Subsidiaries,   including   Capital   Expenditures  and  working  capital,   not
inconsistent  with the provisions  hereof,  (ii) to finance  Acquisitions to the
extent permitted by Section 8.6, (iii) to make Restricted Payments to the extent
permitted  by Section  8.5,  (iv) to make  Investments  in the PageNet  Canadian
Subsidiaries and, in the event of the commencement of the Bankruptcy Proceeding,
to repay the  Indebtedness  under the DIP Facility,  provided that the aggregate
amount of such  Investments  and  repayments  under this  clause  (iv) shall not
exceed  $17,000,000,  and  (v) to pay  the  reasonable  out-of-pocket  fees  and
expenses   incurred  by  the  Borrower  in  connection  with  the   transactions
contemplated  by the  Transaction  Documents.  Notwithstanding  anything  to the
contrary contained in any Loan Document, the Borrower agrees that no part of the
proceeds of any Extensions of Credit will be used, directly or indirectly, for a
purpose which violates any law,  including the provisions of Regulations T, U or
X.

   Section 2.8 Notes; Registration.

      (a) In General.  The Loans made by each  Lender  shall be  evidenced  by a
Note.

      (b) Registered Notes.

         (i) Any Foreign  Credit Party which is not a "bank"  within the meaning
of Section  881(c)(3)(A)  of the Code and which could become  completely  exempt
from  withholding of U.S. Taxes in respect of payment of any  obligations due it
under the Loan  Documents  relating  to any of its Loans,  if such Loans were in
registered form for U.S.  Federal income tax purposes,  may request the Borrower
(through the Administrative  Agent),  and the Borrower agrees thereupon,  (A) in
the case of a Foreign  Credit Party listed on the  signature  pages  hereof,  to
exchange such Foreign  Credit Party's Note for a promissory  note  registered as
provided in clause (iii) below (each,  a "Registered  Note") and (B) in the case
of each other Foreign  Credit Party,  to issue to such Foreign  Credit Party its
Note in the form of a Registered  Note.  A Registered  Note may not be exchanged
for a Note that is not in registered form.

         (ii) Each Foreign Credit Party holding a Registered Note (a "Registered
Noteholder")  and, if such  Foreign  Credit  Party is not the  beneficial  owner
thereof,   such  beneficial  owner,  shall  deliver  to  the  Borrower  and  the
Administrative Agent prior to or at the time such Foreign Credit Party becomes a
Registered  Noteholder,  a  Form  W-8  (Certificate  of  Foreign  Status  of the
Department of Treasury of the United  States) or the successor  form thereto and
any related forms (including, if applicable, Form W-8C) and related forms as may
from time to time be adopted by the relevant  taxing  authorities  of the United
States which are required to allow  payments of portfolio  interest  (within the
meaning of Code Section 871(b) to be made free of United States withholding tax.
Each  Registered   Noteholder  shall  also  deliver  to  the  Borrower  and  the
Administrative   Agent  an  annual  certificate  stating  that  such  Registered
Noteholder or beneficial  owner,  as the case may be, is not a "bank" within the
meaning of section  881(c)(3)(A)  of the Code and is not otherwise  described in
Section  881(c)(3) of the Code. Each Registered  Noteholder or beneficial owner,
as the case may be, shall  promptly  notify the Borrower and the  Administrative


                                       52
<PAGE>

Agent if at any time such Registered Noteholder or beneficial owner, as the case
may  be,  determines  that  it  is no  longer  in a  position  to  provide  such
certificate (or any other form of  certification  adopted by the relevant taxing
authorities of the United States for such purposes).

         (iii)  The  Borrower  shall  maintain,  or  cause to be  maintained,  a
register (the  "Register")  which shall be kept by the  Administrative  Agent on
behalf of the Borrower at no extra charge to the Borrower at the Payment  Office
which shall set forth (A) the names and addresses of each Lender, including each
registered  owner of Loans  evidenced  by a  Registered  Note,  (B) the Class or
Classes of the Loans of such  Lender,  (C) if such Lender is a Tranche A Lender,
the amount of its Tranche A Commitment and the principal amount of its Tranche A
Loans  outstanding  from  time to time and (D) if such  Lender  is a  Tranche  B
Lender, a Tranche B-1 Lender or a Tranche C Lender,  the principal amount of its
Tranche B Loan,  Tranche B-1 Loan or Tranche C Loan,  respectively,  outstanding
from time to time.  The entries in the Register  shall be binding and conclusive
for all purposes, absent manifest error, and the Borrower, and each Credit Party
shall treat each Person  whose name is recorded in the  Register as a Lender for
all purposes under this Agreement.

         (iv) In addition to the requirements of Section 11.5, a Registered Note
(and the Loans  evidenced  thereby) may be assigned or otherwise  transferred in
whole or in part only by  registration  of such  assignment  or transfer of such
Registered  Note (and the Loans  evidenced  thereby) on the  Register  (and each
Registered Note shall  expressly so provide).  Any assignment or transfer of all
or part of such  Loans and the  Registered  Note  evidencing  the same  shall be
registered on the Register only upon compliance with the requirements of Section
11.5 and surrender for  registration of assignment or transfer of the Registered
Note  evidencing  such  Loans,  duly  endorsed by (or  accompanied  by a written
instrument  of  assignment  or  transfer   fully  executed  by)  the  Registered
Noteholder  thereof,  and thereupon one or more new Registered Notes in the same
aggregate  principal  amount shall be issued to the  designated  assignee(s)  or
transferee(s). Prior to the due presentation for registration of transfer of any
Registered  Note,  the  Borrower  and the  Administrative  Agent shall treat the
Person in whose name such Loans and the Registered  Note  evidencing the same is
registered  as the owner  thereof  for the  purpose of  receiving  all  payments
thereon and for all other purposes, notwithstanding any notice to the contrary.

   Section  2.9  Payments;  Pro Rata  Treatment  and  Sharing of  Setoffs.

      (a) Payments Generally.

         (i) Except as provided below, all payments,  including prepayments,  of
principal and interest on the Loans, of the Commitment Fee, the Letter of Credit
Fees  and of all  other  amounts  to be  paid by the  Borrower  under  the  Loan
Documents (the Commitment  Fee, the Letter of Credit Fees,  together with all of
such other fees,  being sometimes  hereinafter  collectively  referred to as the
"Fees")  shall be made to the  Administrative  Agent,  prior to 1:00 p.m. on the
date such payment is due, for the account of the  applicable  Credit  Parties at
the Payment  Office,  in Dollars and in  immediately  available  funds,  without
set-off,  offset,  recoupment or counterclaim.  The  Administrative  Agent shall


                                       53
<PAGE>

distribute any such payments  received by it for the account of any other Person
to the appropriate  recipient promptly following receipt thereof. The failure of
the  Borrower  to make any such  payment  by such time  shall not  constitute  a
Default,  provided  that such  payment  is made on such due  date,  but any such
payment  made after 1:00 p.m. on such due date shall be deemed to have been made
on the next  Business  Day for the  purpose of  calculating  interest on amounts
outstanding  on the Loans.  As between the Borrower and each Credit  Party,  any
payment by the  Borrower  to the  Administrative  Agent for the  account of such
Credit Party shall be deemed to be payment by the Borrower to such Credit Party.
Notwithstanding  the foregoing,  all payments pursuant to Sections 3.4, 3.5, 3.6
and 11.4 shall be paid  directly to the Credit Party  entitled  thereto.  If any
payment under the Loan Documents  shall be due and payable on a day which is not
a Business Day, the due date thereof (except as otherwise  provided with respect
to Interest Periods) shall be extended to the next Business Day and (except with
respect to  payments  in respect of the Fees)  interest  shall be payable at the
applicable rate specified herein during such extension,  provided, however, that
if such next Business Day would be after (i) with respect to Tranche A Loans and
Letters of Credit, the Tranche A Maturity Date, (ii) with respect to the Tranche
B Loans,  the  Tranche B Maturity  Date,  (iii) with  respect to the Tranche B-1
Loans,  the Tranche B-1  Maturity  Date,  and (iv) with respect to the Tranche C
Loans,  the Tranche C Maturity  Date,  such payment  shall instead be due on the
immediately preceding Business Day.

         (ii) If at any time insufficient funds are received by and available to
the  Administrative  Agent to pay fully all amounts of  principal,  interest and
Fees then due hereunder,  such funds shall be applied (A) first, towards payment
of  interest  and Fees  then due  under the Loan  Documents,  ratably  among the
parties  entitled  thereto in  accordance  with the amounts of interest and Fees
then due to such parties, and (B) second,  towards payment of principal then due
under  the Loan  Documents,  ratably  among  the  parties  entitled  thereto  in
accordance with the amounts of principal then due to such parties.

      (b) Set-off.  In addition to any rights and remedies of the Credit Parties
provided by law, upon and after the  acceleration  of all the obligations of the
Borrower  under the Loan  Documents to which it is a party,  or at any time upon
the occurrence and during the  continuance of an Event of Default under Sections
9.1(a) or (b),  each Credit Party shall have the right,  without prior notice to
any Loan Party, any such notice being expressly waived by each Loan Party to the
extent not  prohibited  by  applicable  law,  to set-off  and apply  against any
indebtedness,  whether  matured or unmatured,  of such Loan Party to such Credit
Party any amount owing from such Credit Party to such Loan Party,  at, or at any
time after, the happening of any of the  above-mentioned  events.  To the extent
not  prohibited  by  applicable  law,  the  aforesaid  right of  set-off  may be
exercised by any Credit Party  against such Loan Party or against any trustee in
bankruptcy,  custodian,  debtor  in  possession,  assignee  for the  benefit  of
creditors,  receiver, or execution, judgment or attachment creditor of such Loan
Party,  or against anyone else claiming  through or against such Loan Party,  or
such trustee in bankruptcy,  custodian,  debtor in possession,  assignee for the
benefit of creditors,  receiver, or execution,  judgment or attachment creditor,
notwithstanding  the  fact  that  such  right of  set-off  shall  not have  been
exercised  by such  Credit  Party prior to the making,  filing or  issuance,  or
service  upon  such  Credit  Party  of,  or of  notice  of,  any such  petition,
assignment  for the benefit of creditors,  appointment  or  application  for the
appointment of a receiver, or issuance of execution, subpoena, order or warrant.


                                       54
<PAGE>

Each Credit Party agrees promptly to notify the Borrower and the  Administrative
Agent after any such set-off and application made by such Credit Party, provided
that the  failure to give such  notice  shall not affect  the  validity  of such
set-off and application.

      (c)  Adjustments.   If  any  Lender  shall  obtain  any  payment  (whether
voluntary,  involuntary,  through  the  exercise  of any  right  of  setoff,  or
otherwise) in respect of the principal of or interest on its Loans, resulting in
such Lender receiving payment of a greater proportion of the aggregate principal
amount of, or accrued  interest on, such Loans than the  proportion  received by
any other  Lender,  then the Lender  receiving  such  greater  proportion  shall
promptly  purchase,  at face value for cash,  participations in the Loans to the
extent  necessary  so that the  benefit of such  payment  shall be shared by the
Lenders  ratably in  accordance  with the  aggregate  amount of principal of and
accrued interest on their respective Loans,  provided,  however, that (i) if all
or any portion of such payment is  thereafter  recovered or repaid in good faith
settlement of a pending or threatened avoidance claim, such participations shall
be rescinded and the purchase price returned, in each case to the extent of such
recovery or settlement  payment,  and (ii) the provisions of this Section 2.9(c)
shall not be construed to apply to any payment made by the Borrower  pursuant to
and in  accordance  with the  express  terms of this  Agreement  or any  payment
obtained  by a  Lender  as  consideration  for  the  assignment  of or sale of a
participation in any of its Loans to any assignee or participant,  other than to
the Borrower or any Subsidiary or Affiliate  thereof (as to which the provisions
of this Section  2.9(c) shall apply).  The Borrower  agrees that any Lender that
purchased a  participation  pursuant to this subsection may exercise such rights
to payment (including the right of setoff) with respect to such participation as
fully as such Lender were the direct  creditor of the  Borrower in the amount of
such participation.

ARTICLE 3. INTEREST, FEES, YIELD PROTECTIONS, ETC.

   Section 3.1 Interest Rate and Payment Dates.

      (a)  Prior to  Maturity.  Prior to  maturity,  the  outstanding  principal
balance of the Loans shall bear interest on the unpaid  principal amount thereof
at the  applicable  interest  rate or rates per annum set forth in the following
table:

===========================   ==================================================
         ADVANCES                                  RATE
---------------------------   --------------------------------------------------
     Each ABR Advance         Alternate Base Rate plus the Applicable Margin
                              applicable to ABR Advances
---------------------------   --------------------------------------------------
  Each Eurodollar Advance     Eurodollar Rate for the applicable Interest Period
                              plus the Applicable Margin applicable to
                              Eurodollar Advances
===========================   ==================================================

      (b) Extent of Default; Late Charges.  Notwithstanding the foregoing, after
the  occurrence  and  during  the  continuance  of  an  Event  of  Default,  the
outstanding  principal  balance of all Loans  shall bear  interest  at a rate of
interest  per  annum  equal  to 2% above  the  rate  which  would  otherwise  be
applicable   pursuant  to  Section  3.1(a).   If  any  interest,   Reimbursement
Obligation,  Commitment  Fee,  Letter of Credit Fee or other amount  (other than
principal of the Loans)  payable  under the Loan  Documents is not paid when due


                                       55
<PAGE>

(whether at the stated maturity  thereof,  by  acceleration or otherwise),  such
overdue amount shall,  to the extent  permitted by applicable law, bear interest
at a rate per annum equal to the Alternate Base Rate plus the Applicable  Margin
plus  2%,  in each  case  from the date of such  nonpayment  until  paid in full
(before  as well as after  judgment).  All such  interest  shall be  payable  on
demand.

      (c) In General.  Interest on (i) ABR  Advances to the extent  based on the
BNY Rate shall be  calculated on the basis of a 365 or 366-day year (as the case
may be) and (ii) ABR Advances to the extent based on the Federal  Funds Rate and
Eurodollar  Advances shall be calculated on the basis of a 360-day year, in each
case  for the  actual  number  of days  elapsed,  including  the  first  day but
excluding the last. Except as otherwise provided in Section 3.1(b),  interest on
each Loan shall be payable in arrears on each Interest  Payment Date  applicable
thereto and upon payment (including  prepayment) in full thereof.  Any change in
the interest rate on a Loan  resulting  from a change in the Alternate Base Rate
shall  become  effective  as of the opening of business on the day on which such
change in the Alternate  Base Rate shall become  effective.  The  Administrative
Agent shall,  as soon as  practicable  following  request  therefor,  notify the
Borrower  and the  Lenders  of the  effective  date and the  amount of each such
change in the Alternate Base Rate, but any failure to so notify shall not in any
manner affect the obligation of the Borrower to pay interest on the Loans in the
amounts and on the dates required. Each determination of the Alternate Base Rate
or a Eurodollar  Rate by the  Administrative  Agent  pursuant to this  Agreement
shall be conclusive and binding on the Borrower and the Lenders absent  manifest
error.  At no time shall the interest  rate payable on the Loans,  together with
the Commitment Fees,  Letter of Credit Fees and all other fees and other amounts
payable  under the Loan  Documents,  to the  extent  the same are  construed  to
constitute  interest,  exceed the Highest Lawful Rate. If interest  payable to a
Lender on any date would  exceed the  maximum  amount  permitted  by the Highest
Lawful  Rate,  such  interest  payment  shall  automatically  be reduced to such
maximum permitted amount,  and interest for any subsequent period, to the extent
less than the maximum  amount  permitted  for such period by the Highest  Lawful
Rate,  shall be increased by the unpaid amount of such  reduction.  Any interest
actually  received for any period in excess of such maximum allowable amount for
such period shall be deemed to have been  applied as a prepayment  of the Loans.
The  Borrower  acknowledges  that  to the  extent  interest  payable  on the ABR
Advances  is based on the BNY  Rate,  the BNY Rate is only one of the  bases for
computing interest on loans made by the Lenders,  and by basing interest payable
on the ABR Advances on the BNY Rate,  the Lenders have not  committed to charge,
and the Borrower has not in any way bargained for,  interest based on a lower or
the lowest  rate at which the  Lenders  may now or in the  future  make loans to
other borrowers.

   Section 3.2 Fees.

      (a)  Commitment  Fee.  The  Borrower  agrees to pay to the  Administrative
Agent,  for the  account of the Tranche A Lenders in  accordance  with each such
Lender's  Tranche  A  Percentage,  a  fee  (the  "Commitment  Fee")  during  the
Commitment  Period  equal to the  Commitment  Fee  Percentage  per  annum of the
average  daily  unused  portion  of the  Aggregate  Tranche A  Commitments.  The
Commitment  Fee shall be  payable  quarterly  in arrears on the last day of each
March,  June,  September and December and on the date of the expiration or other


                                       56
<PAGE>

termination of the Tranche A Commitments. The Commitment Fee shall be calculated
on the basis of a 365 or 366-day year for the actual number of days elapsed.

      (b)  Letter  of  Credit  Fees.   The   Borrower   agrees  to  pay  to  the
Administrative  Agent,  for the account of the  Tranche A Lenders in  accordance
with each such Lender's Tranche A Percentage, commissions (the "Letter of Credit
Fees") with  respect to the Letters of Credit for the period from and  including
the date of issuance of each thereof through the expiration  date thereof,  at a
rate per annum equal to the Applicable Margin applicable to Letters of Credit on
the average daily maximum  amount  available  under any  contingency to be drawn
under such Letter of Credit.  The Letter of Credit Fees shall be (i)  calculated
on the basis of a 360-day  year for the actual  number of days  elapsed and (ii)
payable quarterly in arrears on the last day of each March, June,  September and
December  of each year,  commencing  on the first such day  following  the Third
Restatement  Date, and on the date that the Tranche A Commitments  shall expire.
In  addition to the Letter of Credit  Fees,  the  Borrower  agrees to pay to the
Letter of Credit  Issuer,  for its own account,  its  standard  fees and charges
customarily  charged to customers  similar to the  Borrower  with respect to any
Letter of Credit.

      (c) Fees With Respect to Existing PageNet Letters of Credit.  The Borrower
agrees  to pay to the  Tranche  B-1  Lenders  and the  PageNet  Letter of Credit
Issuer,  for their own  respective  accounts,  such  fees  with  respect  to the
Existing  PageNet  Letters of Credit,  if any, as have been agreed to in writing
(or assumed) by the Borrower,  the Tranche B-1 Lenders and the PageNet Letter of
Credit Issuer.

      (d) Other Fees. The Borrower agrees to pay to each Agent and the Letter of
Credit Issuer,  for their own respective  accounts,  such other fees, if any, as
have been agreed to in writing (or assumed) by the Borrower,  such Agent and the
Letter of Credit Issuer.

   Section 3.3 Conversions and Continuations.

      (a) The  Borrower  may elect from time to time to convert  its  Eurodollar
Advances  to ABR  Advances  by  giving  the  Administrative  Agent at least  one
Business  Day's prior  irrevocable  notice of such  election  (confirmed  by the
delivery of a Notice of  Conversion/Continuation),  specifying  (A) whether such
ABR  Advance is to comprise  all or a portion of the Tranche A Loans,  Tranche B
Loans,  Tranche B-1 Loans or Tranche C Loans,  (B) the amount to be so converted
and (C) the Interest Period relating to such Eurodollar  Advances.  In addition,
the  Borrower  may elect from time to time to (i)  convert  its ABR  Advances to
Eurodollar  Advances and (ii) to continue its Eurodollar Advances by selecting a
new Interest Period therefor, in each case by giving the Administrative Agent at
least three Business Days' prior irrevocable notice of such election  (confirmed
by the  delivery  of a  Notice  of  Conversion/Continuation),  in the  case of a
conversion to or  continuation  of Eurodollar  Advances,  specifying (A) whether
such Eurodollar  Advance is to comprise all or a portion of the Tranche A Loans,
Tranche B Loans,  Tranche B-1 Loans or Tranche C Loans,  (B) the amount to be so
converted and (C) the Interest Period relating  thereto,  provided that any such
conversion  of ABR  Advances  to  Eurodollar  Advances  shall  only be made on a
Business Day and any such  conversion or  continuation  of  Eurodollar  Advances
shall  only be made on the last day of the  Interest  Period  applicable  to the


                                       57
<PAGE>

Eurodollar  Advances  which are to be  converted to ABR Advances or continued as
new Eurodollar  Advances.  The  Administrative  Agent shall promptly provide the
applicable   Class   of   Lenders   with  a  copy  of  each   such   Notice   of
Conversion/Continuation.  ABR Advances and Eurodollar  Advances may be converted
or  continued  pursuant  to this  Section  in whole or in  part,  provided  that
conversions  of  ABR  Advances  to  Eurodollar   Advances  or  continuations  of
Eurodollar  Advances,  shall be in an aggregate  principal amount of $500,000 or
such  amount  plus a  whole  multiple  of  $100,000.  If,  with  respect  to any
conversion of a Loan from one interest rate basis to another, the Borrower shall
fail to give  due  notice  as  provided  in this  Section,  such  Loan  shall be
automatically  converted to an ABR Advance upon the  expiration  of the Interest
Period with respect thereto.

      (b)  Notwithstanding  anything  in this  Section to the  contrary,  no ABR
Advance may be converted to a Eurodollar Advance,  and no Eurodollar Advance may
be continued,  if the Borrower or the Administrative  Agent has knowledge that a
Default or Event of Default has  occurred  and is  continuing  either (i) at the
time the  Borrower  shall  notify the  Administrative  Agent of its  election to
convert or continue or (ii) on the  requested  Conversion/Continuation  Date. In
such event, such ABR Advance shall be automatically  continued as an ABR Advance
or such Eurodollar Advance shall be automatically converted to an ABR Advance on
the last day of the Interest Period applicable to such Eurodollar Advance. If an
Event of Default shall have occurred and be continuing, the Administrative Agent
shall, at the request of the Required Lenders, notify the Borrower (by telephone
or otherwise)  that all, or such lesser amount as the  Administrative  Agent and
the Required Lenders shall  designate,  of the outstanding  Eurodollar  Advances
shall be automatically converted to ABR Advances, in which event such Eurodollar
Advances  shall be  automatically  converted  to ABR  Advances  on the date such
notice is given.  In the event that  Eurodollar  Advances  are  converted to ABR
Advances  at the  request of the  Required  Lenders  pursuant  to the  preceding
sentence,  no Lender shall be entitled to an indemnity  described in Section 3.4
with respect to the Eurodollar Advances so converted.

      (c) Each  conversion or  continuation  shall be effected by each member of
the applicable  Class of Lenders by applying the proceeds of its new ABR Advance
or Eurodollar  Advance, as the case may be, to its Advances (or portion thereof)
being  converted or  continued  (it being  understood  that such  conversion  or
continuation  shall not  constitute a borrowing  for purposes of Article 4, 5 or
6). Accrued  interest on the Advance (or portion  thereof) being converted shall
be paid by the Borrower at the time of conversion.

      (d) Without in any way limiting the  obligation of the Borrower to confirm
in writing any telephonic  notice of a conversion or  continuation  given to the
Administrative  Agent, the  Administrative  Agent may act without liability upon
the basis of telephonic  notice of such conversion or  continuation  believed by
the  Administrative  Agent in good faith to be from an authorized officer of the
Borrower  prior to  receipt  of written  confirmation.  In each such  case,  the
Borrower  waives the right to dispute the  Administrative  Agent's record of the
terms of such telephone notice of such conversion or continuation.

      (e) Except as provided in the last  sentence of subsection  (b) above,  if
any  prepayment  is made  under this  Section  with  respect  to any  Eurodollar


                                       58
<PAGE>

Advances,  in whole or in part, prior to the last day of the applicable Interest
Period,  the Borrower agrees to indemnify the Lenders in accordance with Section
3.4.

   Section 3.4 Funding Loss.

      (a)  Notwithstanding  anything  contained  herein to the contrary,  if the
Borrower shall fail to borrow or convert or continue on a Credit  Extension Date
or Conversion/Continuation Date after the Borrower shall have given notice to do
so in which it shall have  requested a  Eurodollar  Advance  pursuant to Section
2.2(a) or 3.3 or if a  Eurodollar  Advance  shall be  terminated  for any reason
(subject to the penultimate  sentence of Section 3.3(b)),  prior to the last day
of the Interest Period applicable  thereto, or if, while a Eurodollar Advance is
outstanding,  any repayment or prepayment of such Eurodollar  Advance is made or
deemed  made for any  reason  (including,  without  limitation,  as a result  of
acceleration  or  illegality)  on a date  which  is prior to the last day of the
Interest Period applicable thereto, the Borrower agrees to indemnify each Lender
against,  and to pay directly to such Lender within ten days after such Lender's
demand therefor, any loss or expense suffered by such Lender as a result of such
failure to borrow,  termination or repayment,  including without limitation,  an
amount, if greater than zero, equal to:

                              A   x   (B-C)   x   D
                                                  -
                                                 360

      where:

      "A" equals such Lender's pro rata share of the Affected Principal Amount;

      "B" equals the Eurodollar Rate (expressed as a decimal) applicable to such
Advance;

      "C" equals the  applicable  Eurodollar  Rate  (expressed  as a decimal) in
effect on or about the first day of the applicable  Remaining  Interest  Period,
based on the applicable rates offered or bid on or about such date, for deposits
in an amount equal approximately to such Lender's pro rata share of the Affected
Principal  Amount with an Interest Period equal  approximately to the applicable
Remaining Interest Period, as determined by the Administrative Agent;

      "D"  equals  the  number of days from and  including  the first day of the
applicable  Remaining  Interest  Period  to but  excluding  the last day of such
Remaining Interest Period;

and any other  out-of-pocket loss or expense (including any internal  processing
charge  customarily   charged  by  such  Lender)  suffered  by  such  Lender  in
liquidating  or employing  deposits  acquired to fund or maintain the funding of
the Affected  Principal  Amount,  or  redeploying  funds  prepaid or repaid,  in
amounts  which  correspond  to such  Lender's  pro rata  share of such  proposed
borrowing,  conversion,  terminated Eurodollar Advance, prepayment or repayment.
Each  determination  by the  Administrative  Agent or a Lender  pursuant to this
Section shall be conclusive and binding on the Borrower  absent  manifest error.


                                       59
<PAGE>

Each Lender has indicated  that, if the Borrower  elects to borrow or convert to
or continue  Eurodollar  Advances,  such Lender may wish to purchase one or more
deposits in order to fund or maintain  its  funding of its  Eurodollar  Advances
during the Interest Period in question;  it being understood that the provisions
of this Agreement  relating to such funding are included only for the purpose of
determining the rate of interest to be paid on such Eurodollar  Advances and for
purposes of determining amounts owing under Sections 3.5(a) and 3.6. Each Lender
shall be  entitled to fund and  maintain  its funding of all or any part of each
Eurodollar  Advance  made  by it in  any  manner  it  sees  fit,  but  all  such
determinations  shall  be  made  as if  such  Lender  had  actually  funded  and
maintained its funding of such Eurodollar Advance during the applicable Interest
Period  through the purchase of deposits in an amount  equal to such  Eurodollar
Advance and having a maturity corresponding to such Interest Period.

   Section 3.5 Increased Costs; Illegality, etc.

      (a) Increased  Costs.  If any Change in Law shall  impose,  modify or make
applicable any reserve, special deposit, compulsory loan, assessment,  increased
cost or similar  requirement against assets held by, or deposits of, or advances
or loans by, or other credit extended by, or any other  acquisition of funds by,
any office of any Credit Party in respect of its  Eurodollar  Advances  which is
not otherwise  included in the determination of a Eurodollar Rate or against any
Letters of Credit issued hereunder or any Existing PageNet Letters of Credit and
the  result  thereof  is to  increase  the cost to any  Credit  Party of making,
renewing, converting or maintaining its Eurodollar Advances or its commitment to
make such Eurodollar Advances, or to reduce any amount receivable under the Loan
Documents in respect of its Eurodollar Advances,  or to increase the cost to any
Credit  Party of issuing or  maintaining  the Letters of Credit or the  Existing
PageNet Letters of Credit or participating  therein,  as the case may be, or the
cost to any Credit Party of performing its respective  functions  hereunder with
respect to the  Letters  of Credit or any  Existing  PageNet  Letters of Credit,
then, in any such case, the Borrower shall pay such Credit Party such additional
amounts as is  sufficient to  compensate  such Credit Party for such  additional
cost or reduction in such amount  receivable which such Credit Party deems to be
material as determined by such Credit Party.

      (b) Capital  Adequacy.  If any Credit Party  determines that any Change in
Law  relating to capital  requirements  has or would have the effect of reducing
the rate of return on such  Credit  Party's  capital  or on the  capital of such
Credit  Party's  holding  company,  if any, on the  Extensions  of Credit or any
Existing PageNet Letters of Credit to a level below that which such Credit Party
(or its holding  company)  would have  achieved or would  thereafter  be able to
achieve  but for such  Change in Law (after  taking  into  account  such  Credit
Party's (or such holding company's)  policies  regarding capital adequacy),  the
Borrower  shall  pay to  such  Credit  Party  (or  such  holding  company)  such
additional  amount or  amounts as will  compensate  such  Credit  Party (or such
holding company) for such reduction.

      (c) Illegality.  Notwithstanding any other provision hereof, if any Lender
shall reasonably determine that any law, regulation, treaty or directive, or any
change therein or in the  interpretation or application  thereof,  shall make it
unlawful  for  such  Lender  to make  or  maintain  any  Eurodollar  Advance  as
contemplated by this  Agreement,  such Lender shall promptly notify the Borrower


                                       60
<PAGE>

and the Administrative  Agent thereof,  and (i) the commitment of such Lender to
make such  Eurodollar  Advances or convert ABR Advances to  Eurodollar  Advances
shall  forthwith be  suspended,  (ii) such Lender shall fund its portion of each
requested  Eurodollar  Advance as an ABR Advance and (iii) such  Lender's  Loans
then  outstanding  as such  Eurodollar  Advances,  if any,  shall  be  converted
automatically  to ABR  Advances  on the last day of the  then  current  Interest
Period applicable thereto or at such earlier time as may be required by law. The
commitment  of any such  Lender with  respect to  Eurodollar  Advances  shall be
suspended  until  such  Lender  shall  notify the  Administrative  Agent and the
Borrower that the  circumstances  causing such suspension no longer exist.  Upon
receipt of such  notice by each of the  Administrative  Agent and the  Borrower,
such  Lender's  commitment  to make or  maintain  Eurodollar  Advances  shall be
reinstated.

      (d)  Substituted  Interest Rate. In the event that (i) the  Administrative
Agent shall have determined (which determination shall be conclusive and binding
upon the  Borrower)  that by reason of  circumstances  affecting  the  interbank
eurodollar  market  either  adequate  and  reasonable  means  do not  exist  for
ascertaining the Eurodollar Rate applicable  pursuant to Section 3.1 or (ii) the
Required  Lenders  shall have notified the  Administrative  Agent that they have
determined (which determination shall be conclusive and binding on the Borrower)
that the applicable  Eurodollar  Rate will not adequately and fairly reflect the
cost to such Lenders of maintaining  or funding loans bearing  interest based on
such Eurodollar Rate, with respect to any portion of the Loans that the Borrower
has  requested be made as Eurodollar  Advances or Eurodollar  Advances that will
result  from the  requested  conversion  or  continuation  of any portion of the
Advances into or of  Eurodollar  Advances  (each,  an "Affected  Advance"),  the
Administrative  Agent shall  promptly  notify the  Borrower  and the Lenders (by
telephone  or  otherwise,   to  be  promptly   confirmed  in  writing)  of  such
determination,  on or, to the extent practicable,  prior to the requested Credit
Extension  Date  or  Conversion  Date  for  such  Affected   Advances.   If  the
Administrative  Agent shall give such notice, (a) any Affected Advances shall be
made as ABR  Advances,  (b) the Advances (or any portion  thereof)  that were to
have been converted to Affected  Advances shall be converted to ABR Advances and
(c) any outstanding Affected Advances shall be converted, on the last day of the
then current  Interest Period with respect thereto,  to ABR Advances.  Until any
notice under clauses (i) or (ii), as the case may be, of this subsection (d) has
been withdrawn by the  Administrative  Agent (by notice to the Borrower promptly
upon  either  (x)  the   Administrative   Agent  having   determined  that  such
circumstances affecting the interbank eurodollar market no longer exist and that
adequate and  reasonable  means do exist for  determining  the  Eurodollar  Rate
pursuant to Section 3.1 or (y) the Administrative  Agent having been notified by
such Required  Lenders that  circumstances no longer render the Advances (or any
portion thereof) Affected  Advances),  no further  Eurodollar  Advances shall be
required to be made by the  Lenders,  nor shall the  Borrower  have the right to
convert all or any portion of the Loans to or as Eurodollar Advances.

      (e) Payment; Certificates. Each payment pursuant to subsections (a) or (b)
above shall be made within 10 days after demand therefor,  which demand shall be
accompanied by a certificate of the Credit Party  demanding such payment setting
forth the calculations of the additional amounts payable pursuant thereto.  Each
such  certificate  shall be conclusive  absent manifest error. No failure by any
Credit  Party  to  demand,  and no  delay  in  demanding,  compensation  for any


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increased  cost  shall   constitute  a  waiver  of  its  right  to  demand  such
compensation  at any time,  provided  that such Credit  Party  shall  notify the
Borrower  of any such  increased  cost  within 90 days after the officer of such
Lender having primary  responsibility  for this Agreement has obtained knowledge
of such increased cost.

   Section 3.6 Taxes.

      (a) Payments Free of Taxes.  All payments by or on account of the Borrower
under any Loan  Document to or for the  account of a Credit  Party shall be made
free and clear of, and without any  deduction or  withholding  for or on account
of, any and all present or future  Indemnified  Taxes or Other  Taxes,  provided
that  if the  Borrower  or any  other  Person  is  required  by any  law,  rule,
regulation,  order,  directive,  treaty or  guideline  to make any  deduction or
withholding  in  respect  of such  Indemnified  Tax or Other Tax from any amount
required to be paid by the  Borrower  to or on behalf of any Credit  Party under
any Loan Document  (each,  a "Required  Payment"),  then (i) the Borrower  shall
notify the Administrative Agent and such Credit Party of any such requirement or
any  change  in any  such  requirement  as soon as the  Borrower  becomes  aware
thereof,  (ii) the Borrower shall pay such Indemnified Tax or Other Tax prior to
the date on which  penalties  attach  thereto,  such  payment to be made (to the
extent that the liability to pay is imposed on the Borrower) for its own account
or (to the extent that the  liability to pay is imposed on such Credit Party) on
behalf and in the name of such Credit  Party,  (iii) the  Borrower  shall pay to
such Credit Party an additional amount such that such Credit Party shall receive
on the due date  therefor an amount  equal to the  Required  Payment had no such
deduction or  withholding  been made or required,  and (iv) the Borrower  shall,
within 30 days after paying such  Indemnified  Tax or Other Tax,  deliver to the
Administrative Agent and such Credit Party satisfactory evidence of such payment
to the relevant Governmental Body.

      (b)  Reimbursement  for Taxes and Other  Taxes Paid by Credit  Party.  The
Borrower shall reimburse each Credit Party, within ten days after written demand
therefor,  for the full amount of all  Indemnified  Taxes or Other Taxes paid by
such  Credit  Party on or with  respect  to any  payment by or on account of any
obligation of the Borrower under the Loan Documents (including Indemnified Taxes
or Other Taxes imposed or asserted on or  attributable  to amounts payable under
this  Section) and any  penalties,  interest  and  reasonable  expenses  arising
therefrom or with respect  thereto (other than any such  penalties,  interest or
expenses  that are  incurred  by such  Credit  Party's  unreasonably  taking  or
omitting to take action with respect to such Indemnified  Taxes or Other Taxes),
whether or not such  Indemnified  Taxes or Other Taxes were correctly or legally
imposed or asserted by the relevant  Governmental  Body. A certificate as to the
amount of such payment or liability  delivered to the Borrower by a Credit Party
shall be conclusive  absent  manifest  error. In the event that any Credit Party
determines  that it received a refund or credit for  Indemnified  Taxes or Other
Taxes paid by the Borrower under this Section,  such Credit Party shall promptly
notify the  Borrower of such fact and shall remit to the  Borrower the amount of
such refund or credit.

      (c) Foreign Credit  Parties.  Any Foreign Credit Party that is entitled to
an  exemption  from  or  reduction  of  withholding  tax  under  the  law of the
jurisdiction  in which the  Borrower  is  located,  or any  treaty to which such
jurisdiction is a party, with respect to payments under the Loan Documents shall


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<PAGE>

deliver to the Borrower (with a copy to the  Administrative  Agent), at the time
or times  prescribed  by applicable  law,  such properly  completed and executed
documentation  prescribed by applicable  law  (including  Internal  Revenue Form
W-8BEN or Form  W-8ECI) or  reasonably  requested by the Borrower as will permit
such  payments to be made  without  withholding  or at a reduced rate or if such
Foreign Credit Party is not a "bank" within the meaning of Section  881(c)(3)(A)
of the Code and intends to claim  exemption from U.S.  Federal  withholding  tax
under  Section  871(h)  or  881(c)  of the Code  with  respect  to  payments  of
"portfolio  interest",  a  Form  W-8  or  any  subsequent  versions  thereof  or
successors  thereto  (and, if such Foreign  Credit Party  delivers a Form W-8, a
certificate  representing  that  such  Foreign  Credit  Party  is not a bank for
purposes of Section 881(c) of the Code, is not a 10-percent  shareholder (within
the meaning of Section  871(h)(3)(B)  of the Code of the  Borrower  and is not a
controlled  foreign  corporation  related to the Borrower (within the meaning of
Section  864(d)(4) of the Code)),  properly  completed and duly executed by such
Foreign Credit Party  claiming  complete  exemption  from, or a reduced rate of,
U.S. Federal  withholding tax on payments of interest by the Borrower under this
Agreement and the other Loan Documents.

   Section 3.7 Mitigation; Replacement Lenders.

      (a)  Changes  of Lending  Offices.  If any  Credit  Party (or its  holding
company,  if any) requests  compensation  under Section  3.5(a) or (b) or if the
Borrower  is  required to pay an  additional  amount to any Credit  Party or any
Governmental  Body for the account of any Credit Party  pursuant to Section 3.6,
such Credit Party will, upon the request of the Borrower, use reasonable efforts
(subject to its overall policy  considerations) to designate a different lending
office for funding or booking its  Extensions of Credit or any Existing  PageNet
Letters  of Credit or to assign  its  rights  and  obligations  hereunder  or in
respect of any  Existing  PageNet  Letters of Credit to another of its  offices,
branches or  affiliates,  if, in its good faith  judgment,  such  designation or
assignment (i) would  eliminate or reduce future  amounts  payable under Section
3.5(a) or (b) or Section  3.6, as the case may be,  (ii) would not subject  such
Credit Party to any  unreimbursed  cost or expense and (iii) would not otherwise
be  disadvantageous  to such Lender.  The Borrower  agrees to pay the reasonable
costs  and  expenses  incurred  in  connection  with  any  such  designation  or
assignment and the  Administrative  Agent agrees that no assignment fee shall be
payable to it pursuant to Section 11.5 in connection therewith.  Nothing in this
Section shall affect or postpone any of the  obligations of the Borrower to make
the payments  required to a Credit Party under Section  3.5(a) or (b) or Section
3.6, incurred prior to any such designation or assignment.

      (b)  Replacement  of  Lenders.  If (i) any  Credit  Party (or its  holding
company,  if any) requests  compensation  under Section  3.5(a) or (b) or if the
Borrower  is  required to pay an  additional  amount to any Credit  Party or any
Governmental Body for the account of any Credit Party pursuant to Section 3.6 in
an  aggregate  amount in excess of $50,000,  or (ii) any Credit Party shall give
any notice to the  Borrower  or the  Administrative  Agent  pursuant  to Section
3.5(c),  then, in each such case,  provided that no Default shall then exist and
be continuing,  during the 90 day period after the receipt of such request,  the
Borrower  at  its  sole  cost,  expense  and  effort  may,  upon  notice  to the
Administrative  Agent and the Letter of Credit Issuer,  require Lender to assign
(in accordance with and subject to the  restrictions  contained in Section 11.5)


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all of its rights and  obligations  under the Loan Documents to any other Lender
(or affiliate  thereof),  or any other  Eligible  Institution  identified by the
Borrower  if  such  other  Lender  (or  affiliate   thereof)  or  such  Eligible
Institution  agrees  to  assume  all of  the  obligations  of  such  Lender  for
consideration  equal to the outstanding  principal amount of such Lender's Loans
and all unreimbursed  sums paid by such Lender under Section 2.6,  together with
interest  thereon to the date of such  transfer  and all other  amounts  payable
under the Loan Documents to such Lender on or prior to the date of such transfer
(including  any fees accrued  hereunder  and any amounts  which would be payable
under Section 3.4 as if all of such Lender's Loans were being prepaid in full on
such  date).  In the  event of a  transfer  to any other  Eligible  Institution,
subject to the  satisfaction  of the  conditions of Section 11.5,  such Eligible
Institution shall be a "Lender" for all purposes hereunder. Without prejudice to
the survival of any other agreement of the Borrower hereunder, the agreements of
the  Borrower  contained  in Sections  3.5,  3.6(b),  11.1(a) and 11.4  (without
duplication  of any  payments  made to such Lender by the Borrower or such other
Eligible Institution) shall survive for the benefit of any Lender replaced under
this Section with respect to the time prior to such  replacement.  In connection
with any transfer  pursuant to this subsection,  the Borrower shall be obligated
to pay the assignment fee referred to in Section 11.5(b).

ARTICLE 4. REPRESENTATIONS AND WARRANTIES

      In order to induce the Credit  Parties  to enter into this  Agreement  and
extend or participate in the Extensions of Credit provided herein,  the Borrower
hereby makes the following representations and warranties to each Credit Party:

   Section 4.1 Subsidiaries; Capitalization.

      (a) As of the Third  Restatement  Date, (i) Arch has only the Subsidiaries
set forth on Schedule 4.1, which  Schedule  identifies  each  Subsidiary of Arch
which is a Foreign  Subsidiary and further  identifies  each Foreign  Subsidiary
which is a  Material  Foreign  Subsidiary,  (ii) the  outstanding  Stock of each
corporate  Subsidiary of Arch and the ownership  interest in each  non-corporate
Subsidiary of Arch are as set forth on Schedule 4.1, and (iii) the owner of each
issue of Stock and each such  ownership  interest  listed on Schedule 4.1 is the
registered and beneficial owner thereof.

      (b) As of the Merger Effective Date and after giving effect to the PageNet
Transactions,  (i) Arch has only the  Subsidiaries  set forth on Schedule 4.1 as
supplemented  in  accordance  with  Section  8.3(iv)(F),  which  Schedule  as so
supplemented  identifies each  Subsidiary of Arch which is a Foreign  Subsidiary
and further  identifies  each  Foreign  Subsidiary  which is a Material  Foreign
Subsidiary,  (ii) the outstanding Stock of each corporate Subsidiary of Arch and
the ownership interest in each non-corporate Subsidiary of Arch are as set forth
on Schedule 4.1 as so  supplemented,  and (iii) the owner of each issue of Stock
and each such ownership  interest  listed on Schedule 4.1 as so  supplemented is
the registered and beneficial owner thereof.



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<PAGE>

      (c) The issued and outstanding shares of each corporate Subsidiary of Arch
are duly authorized, validly issued, fully paid and non-assessable and are owned
free and clear of any Liens,  except  Permitted  Liens. The interest of Arch and
any of its Subsidiaries in each of its non-corporate  Subsidiaries is owned free
and clear of any Liens, except Permitted Liens.  Neither the Borrower nor any of
its  Subsidiaries  has issued any  securities  convertible  into Stock (or other
equity  interest) and there are no  outstanding  options or warrants to purchase
Stock of the Borrower or any such Subsidiary of any class or kind, and there are
no agreements, voting trusts or understandings with respect thereto or affecting
in any  manner  the  sale,  pledge,  assignment  or other  disposition  thereof,
including any right of first refusal, option,  redemption,  call or other rights
with respect thereto, whether similar or dissimilar to any of the foregoing.

   Section 4.2 Existence and Power.

      The  Borrower  and each of its  Subsidiaries  is duly  organized,  validly
existing  and in  good  standing  under  the  laws  of the  jurisdiction  of its
incorporation  or formation,  has all requisite legal power and authority to own
its  Property  and to carry on its  business  as now  conducted,  and is in good
standing and authorized to do business in each jurisdiction in which the failure
to be so  authorized  could  reasonably  be expected to have a Material  Adverse
Effect.

   Section 4.3 Authority and Execution.

      The  Borrower  and each of its  Subsidiaries  has  full  legal  power  and
authority  to enter  into,  execute,  deliver  and  carry  out the  terms of the
Transaction  Documents to which it is a party, and, in the case of the Borrower,
to make the borrowings  contemplated  hereby, to execute,  deliver and carry out
the terms of the Notes and to incur the obligations provided for therein, all of
which have been duly  authorized by all proper and  necessary  action and are in
full compliance with its Organizational  Documents. The Borrower and each of its
Subsidiaries has duly executed and delivered the Transaction  Documents to which
it is a party.

   Section 4.4 Governmental Body Approvals.

      Except  as set  forth on  Schedule  4.4,  no  consent,  authorizations  or
approval  of,  filing  with,  notice  to, or  exemption  by,  stockholders,  any
Governmental  Body or any  other  Person  (except  for  those  which  have  been
obtained,  made or given) is required to authorize, or is required in connection
with the  execution,  delivery and  performance  by the Borrower and each of its
Subsidiaries of any of the Loan Documents and, on and after the Merger Effective
Date,  the  Transaction  Documents,  in each  case to  which it is a party or is
required  as a  condition  to  the  validity  or  enforceability  of  any of the
Transaction  Documents.  No provision of any applicable statute,  law (including
any  applicable  usury or similar law),  rule or regulation of any  Governmental
Body will  prevent  the  execution,  delivery or  performance  of, or affect the
validity of, any of the Loan Documents.

   Section 4.5 Binding Agreement.

      The Transaction Documents,  when executed and delivered,  constitute,  and
the Notes,  when issued and delivered  pursuant hereto for value received,  will


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<PAGE>

constitute,  the valid and legally binding  obligations of the Borrower and each
of its  Subsidiaries,  in each case to the  extent  that it is a party  thereto,
enforceable  in  accordance  with  their  respective   terms,   except  as  such
enforceability   may  be   limited   by   applicable   bankruptcy,   insolvency,
reorganization  or other similar laws  affecting the  enforcement  of creditors'
rights generally.

   Section 4.6 Litigation.

      (a) Except as set forth on Schedule  4.6,  there are no actions,  suits or
proceedings at law or in equity or by or before any  Governmental  Body (whether
or not  purportedly on behalf of the Borrower or any of its  Subsidiaries or any
other Loan  Party)  pending or, to the  knowledge  of the  Borrower,  threatened
against the Borrower or any of its  Subsidiaries  or any other Loan Party or any
of their  respective  Properties or rights,  which (i) if adversely  determined,
could reasonably be expected to have a Material Adverse Effect or (ii) call into
question the validity or enforceability of any of the Transaction Documents.

      (b)  Since  the Third  Restatement  Date,  there has been no change in the
status of the matters  disclosed  on Schedule 4.6 that,  individually  or in the
aggregate,  has  resulted  in, or  materially  increased  the  likelihood  of, a
Material Adverse Effect.

   Section 4.7 No Conflicting Agreements.

      Except as set forth on Schedule  4.7,  neither the Borrower nor any of its
Subsidiaries is in default under any mortgage,  indenture,  contract, agreement,
judgment,  decree  or  order to which it is a party or by which it or any of its
Property  is  bound,  which  defaults,  taken as a whole,  could  reasonably  be
expected to have a Material Adverse Effect. The execution,  delivery or carrying
out of the terms of the  Transaction  Documents  will not  constitute  a default
under,  conflict with, require any consent under (other than consents which have
been  obtained) or result in the creation or  imposition  of, or  obligation  to
create,  any Lien upon the Property of the  Borrower or any of its  Subsidiaries
pursuant  to the terms of any such  mortgage,  indenture,  contract,  agreement,
judgment,  decree or order,  which  defaults,  conflicts  and  consents,  if not
obtained,  taken as a whole,  could  reasonably  be  expected to have a Material
Adverse Effect. The execution, delivery or carrying out of the terms of the Loan
Documents  will not  constitute  a default  under,  conflict  with,  require any
consent  under  (other  than  consents  which  have been  obtained),  the Parent
Subordinated  Indenture,  the Parent Discount Notes Indenture or any of the Arch
Indentures, or result in the creation or imposition of, or obligation to create,
any Lien (other than  Permitted  Liens) upon the  Property of the Parent or Arch
pursuant to the terms of the Parent Subordinated Indenture,  the Parent Discount
Notes Indenture or any of the Arch Indentures.

   Section 4.8 Taxes.

      Each of the Borrower and each of its  Subsidiaries  has filed or caused to
be filed all tax returns required to be filed and has paid, or has made adequate
provision  for the  payment  of, all taxes  shown to be due and  payable on said
returns or in any assessments  made against it (other than those being contested
as required under Section 7.4) which would be material to the Borrower or any of
its  Subsidiaries,  and no tax Liens have been filed with respect thereto except
Permitted Liens described in Section 8.2(i). The charges,  accruals and reserves


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<PAGE>

on the books of the  Borrower and each of its  Subsidiaries  with respect to all
federal,  state,  local  and  other  taxes  are,  to the best  knowledge  of the
Borrower,  adequate for the payment of all such taxes, and the Borrower does not
know of any unpaid  assessment which is due and payable against it or any of its
Subsidiaries or any claims being asserted which could  reasonably be expected to
have a Material  Adverse  Effect,  except such thereof as are being contested as
required under Section 7.4, and for which adequate  reserves have been set aside
in accordance with GAAP.

   Section 4.9 Compliance with Applicable Laws.

      Neither  the  Borrower  nor any of its  Subsidiaries  is in  default  with
respect to any  judgment,  order,  writ,  injunction,  decree or decision of any
Governmental  Body which default could reasonably be expected to have a Material
Adverse  Effect.  The Borrower and each of its  Subsidiaries is complying in all
material   respects  with  all  applicable   statutes  and  regulations  of  all
Governmental  Bodies,  including  ERISA and  Environmental  Laws, a violation of
which could reasonably be expected to have a Material Adverse Effect.

   Section 4.10 Investment Companies and other Regulated Entities.

      Neither the Borrower,  any of its Subsidiaries  nor any Person  controlled
by,  controlling,  or under  common  control  with,  the  Borrower or any of its
Subsidiaries,  is (i) an  "investment  company"  as  defined  in, or  subject to
regulation  under,  the  Investment  Company  Act of 1940,  as  amended,  (ii) a
"holding  company" as defined  in, or subject to  regulation  under,  the Public
Utility  Holding  Company Act of 1935 or the Federal  Power Act, as amended,  or
(iii)  subject to any statute or  regulation  which  prohibits or restricts  the
incurrence of Indebtedness for borrowed money, including statutes or regulations
relative to common or  contract  carriers  or to the sale of  electricity,  gas,
steam, water, telephone, telegraph or other public utility services.

   Section 4.11 Properties.

      Each of the Borrower and each of its  Subsidiaries has good and marketable
title  to,  or valid  leasehold  interests  in,  all of its  property,  real and
personal,  material to its business, subject to no Liens, except Permitted Liens
and except for minor defects in title that do not interfere  with its ability to
conduct its business as currently  conducted or to utilize such  properties  for
their intended purposes.

   Section 4.12 FCC Matters.

      The  Borrower and each of its  Subsidiaries  (i) has duly and timely filed
all filings which are required to be filed by it under the  Communications  Act,
the  failure to file of which  could  reasonably  be expected to have a Material
Adverse  Effect and (ii) is in all  material  respects  in  compliance  with the
Communications  Act,  including the rules and regulations of the FCC relating to
the carriage of radio common  carrier  signals,  the failure to be in compliance
with which could reasonably be expected to have a Material Adverse Effect.



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   Section 4.13 Federal Reserve Regulations.

      (a) Neither the Borrower nor any Subsidiary is engaged principally,  or as
one of its  important  activities,  in the business of extending  credit for the
purpose of purchasing or carrying any Margin Stock.  After giving effect to each
Transaction  and the  making of each  Extension  of  Credit,  Margin  Stock will
constitute less than 25% of the assets (as determined by any reasonable  method)
of the Borrower and its Subsidiaries.

      (b) No part of the  proceeds  of any  Extension  of  Credit  will be used,
whether  directly  or  indirectly,  and  whether  immediately,  incidentally  or
ultimately, for any purpose that entails a violation of, or that is inconsistent
with, the provisions of Regulation U or X.

   Section 4.14 Tariffs.

      No action to change,  alter,  rescind or otherwise  terminate  the tariffs
containing service regulations or any rates and charges for radio common carrier
services which, if adversely  determined,  would have a Material Adverse Effect,
is  pending  or known by the  Borrower  or any of its  Subsidiaries  to be under
consideration.

   Section 4.15 No Misrepresentation.

      No  representation  or warranty  contained  herein and no  certificate  or
report furnished or to be furnished pursuant to any of the Transaction Documents
by any Loan  Party in  connection  with the  transactions  contemplated  thereby
contains  or will  contain a  misstatement  of  material  fact,  or, to the best
knowledge of the Borrower,  omits or will omit to state a material fact required
to be stated in order to make the  statements  herein or therein  contained  not
misleading in the light of the  circumstances  under which made. With respect to
projections or pro-forma financial  statements  furnished by the Borrower or any
of its  Subsidiaries,  such  projections  have been or will be  prepared in good
faith on the assumptions  stated therein,  which assumptions are or will be fair
and reasonable in light of the circumstances existing at the time of delivery of
such  projections  or statements  and  represent,  at the time of delivery,  the
Borrower or such Subsidiary's best estimate of its future financial performance.

   Section 4.16 Plans.

      None of the Borrower,  any of its Subsidiaries or any Commonly  Controlled
Entity  maintains or is obligated to contribute  to any Single  Employer Plan or
Multiemployer  Plan. Since the effective date of ERISA, there have not been, nor
are there now existing,  any events or conditions  which would permit any Single
Employer Plan at any time maintained by the Borrower, any of its Subsidiaries or
any Commonly  Controlled  Entity or, to the best knowledge of the Borrower,  any
Multiemployer  Plan  to  which  the  Borrower,  any of its  Subsidiaries  or any
Commonly  Controlled  Entity  at any time  contributed  to be  terminated  under
circumstances which would cause the Lien provided under Section 4068 of ERISA to
attach to the Property of the Borrower or any of its Subsidiaries.



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   Section 4.17 Burdensome Obligations.

      Neither the Borrower nor any of its Subsidiaries is a party to or bound by
any franchise,  agreement,  deed, lease or other  instrument,  or subject to any
legal  restriction  which,  in the opinion of the  management of the Borrower or
such Subsidiary, is so unusual or burdensome, in the context of its business, as
in the foreseeable  future might  materially and adversely  affect or impair the
revenue of the Borrower and its Subsidiaries taken as a whole, or Operating Cash
Flow of the Borrower,  or the ability of the Borrower or any of its Subsidiaries
to perform their respective  obligations under the Loan Documents.  The Borrower
does not presently anticipate that future expenditures by the Borrower or any of
its  Subsidiaries  needed to meet the  provisions of federal or state  statutes,
orders,  rules or regulations will be so burdensome as to affect or impair, in a
materially adverse manner, the business or condition, financial or otherwise, of
the Borrower and its Subsidiaries taken as a whole.

   Section 4.18 Financial Statements.

      (a) The Parent and Arch have  heretofore  furnished to each Credit Party a
copy of their  respective  (A) Forms 10-K for the fiscal year ended December 31,
1998,  containing the audited  Consolidated balance sheets of the Parent and its
Subsidiaries and of Arch and its Subsidiaries,  respectively, as of December 31,
1997  and  December  31,  1998,  and  the  related  Consolidated  statements  of
operations,  stockholder's equity and cash flows for the periods then ended, (B)
Forms 10-Q for the fiscal  quarters  ended  March 31,  1999,  June 30,  1999 and
September 30, 1999, containing the unaudited  Consolidated balance sheets of the
Parent and its Subsidiaries and of Arch and its Subsidiaries,  respectively, for
such fiscal  quarters,  together  with the related  Consolidated  statements  of
operations  and cash flows for the fiscal  quarters then ended and (C) unaudited
pro forma financial  statements (after giving effect to the  Transactions).  The
financial  statements  referred to in clauses (A) and (B) present fairly, in all
material  respects,  the financial  position and results of operations  and cash
flows of the Parent,  Arch, the Borrower and their Consolidated  Subsidiaries as
of such dates and for such periods in accordance with GAAP,  subject to year-end
audit  adjustments  and the absence of  footnotes  in the case of the  quarterly
statements referred to above. The pro forma financial  statements referred to in
clause (C) were  prepared in good faith based upon  reasonable  assumptions,  it
being  understood  that any such pro forma  financial  statements  represent  an
estimate,  based on various  assumptions,  of future results of operations which
may or may not in  fact  occur.  Except  as  fully  reflected  in the  financial
statements  referred  to in  clauses  (A),  (B) and (C),  there are no  material
liabilities or obligations  with respect to Arch or any of its  Subsidiaries  of
any nature whatsoever (whether absolute,  contingent or otherwise and whether or
not due).

      (b) Since  December 31, 1998,  except for the  acquisition  of MobileMedia
Communications,  Inc. and its  Subsidiaries  and the  Transactions,  each of the
Parent and each of its  Subsidiaries  has  conducted  its  business  only in the
ordinary course and there has been no Material Adverse Change.



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   Section 4.19 Environmental Matters.

      Neither the Borrower nor any of its  Subsidiaries (i) has received written
notice or otherwise  learned of any claim,  demand,  action,  event,  condition,
report  or  investigation  indicating  or  concerning  any  potential  or actual
liability arising in connection with (a) any noncompliance  with or violation of
the  requirements  of any  applicable  Environmental  Laws or (b) the release or
threatened release of any toxic or hazardous waste, substance or constituent, or
other hazardous  substance into the  environment,  (ii) to the best knowledge of
the  Borrower,  has any  threatened or actual  liability in connection  with the
release or  threatened  release of any toxic or  hazardous  waste,  substance or
constituent,  or other  hazardous  substance  into the  environment,  (iii)  has
received  notice of any federal or state  investigation  evaluating  whether any
remedial  action is needed to respond to a release or threatened  release of any
toxic or hazardous waste,  substance or constituent or other hazardous substance
into the environment for which the Borrower or any of its Subsidiaries is or may
be  liable,  or  (iv)  has  received  notice  that  the  Borrower  or any of its
Subsidiaries  is or may be liable to any Person  under  CERCLA or any  analogous
state law,  which,  in the case of this  Section  4.19,  individually  or in the
aggregate could  reasonably be expected to have a Material  Adverse Effect.  The
Borrower and each of its Subsidiaries is in compliance in all material  respects
with  the   financial   responsibility   requirements   of  federal   and  state
environmental  laws to the extent  applicable,  including  those contained in 40
C.F.R., parts 264 and 265, subpart H, and any analogous state law.

   Section 4.20 Collateral Documents.

      (a) The Borrower Pledge Agreement and the Restricted  Subsidiary  Security
Agreement are effective to create in favor of the Bank Collateral Agent, for the
ratable benefit of the Secured Parties (as defined therein),  a legal, valid and
enforceable  security  interest in the Collateral (as defined therein) and, when
(i) the pledged property  constituting  such Collateral is delivered to the Bank
Collateral Agent, (ii) the financing statements in appropriate form are filed in
the applicable  filing offices and (iii) all other applicable  filings under the
Uniform  Commercial Code or otherwise that are required under the Loan Documents
are made, the Borrower Pledge Agreement and the Restricted  Subsidiary  Security
Agreement will constitute a fully  perfected Lien on, and security  interest in,
all right, title and interest of the grantors thereunder in such Collateral,  in
each case  prior and  superior  in right to any other  Person,  other  than with
respect to Liens expressly permitted by Section 8.2.

      (b) Upon the  effectiveness  of the Springing  Sections in accordance with
Section  7.20,  the Security and  Intercreditor  Agreement  will be effective to
create in favor of the Collateral Agents, for the ratable benefit of the Secured
Parties (as defined therein),  a legal, valid and enforceable  security interest
in the  Collateral  (as defined  therein)  and,  when (i) the  pledged  property
constituting  such  Collateral  is  delivered to the  Security  Agent,  (ii) the
financing  statements in  appropriate  form are filed in the  applicable  filing
offices and (iii) all other applicable filings under the Uniform Commercial Code
or otherwise  that are required  under the Loan  Documents or applicable law are
made, the Security and Intercreditor Agreement will constitute a fully perfected
Lien on, and security interest in, all right, title and interest of the grantors


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thereunder in such  Collateral,  in each case prior and superior in right to any
other Person,  other than with respect to Liens  expressly  permitted by Section
8.2.

   Section 4.21 Franchises, Intellectual Property, Etc.

      The  Borrower and each of its  Subsidiaries  possesses or has the right to
use all franchises, Intellectual Property, licenses, permits and other rights as
are material and necessary for the conduct of its business,  and with respect to
which it is in compliance in all material respects,  with no known conflict with
the valid rights of others which could reasonably be expected to have a Material
Adverse Effect. No event has occurred which permits or, to the best knowledge of
the  Borrower,  after  notice  or  lapse of time or both,  could  reasonably  be
expected  to  permit,  the  revocation  or  termination  of any such  franchise,
Intellectual  Property,  license,  permit or other right and which revocation or
termination could reasonably be expected to have a Material Adverse Effect.

   Section 4.22 Solvency.

      The Borrower and each of its  Subsidiaries  is, and after giving effect to
the incurrence of all Indebtedness under the Loan Documents and the consummation
of the Transactions will be, Solvent.

   Section 4.23 Absence of Certain Restrictions.

      Except for the Loan Documents,  the Parent Discount Notes  Indenture,  the
Parent Subordinated Indenture and the Arch Indentures, no indenture, certificate
of designation for preferred Stock, agreement or instrument to which the Parent,
Arch or any of its Subsidiaries is a party, prohibits or restrains,  directly or
indirectly,  the payment of  dividends  or other  payments to Arch or any of its
Subsidiaries.

   Section 4.24 Insurance.

      The Borrower's and its  Subsidiaries'  insurance  policies are and will be
sufficient for compliance with all requirements of law as well as for compliance
with all agreements to which the Borrower or any of its Subsidiaries is a party,
and neither the Borrower nor any of its Subsidiaries  suffers self insurance for
any material risks.

   Section 4.25 Pari Passu Obligations.

      The  obligations  of Arch under the Loan  Documents to which it is a party
are pari passu with Arch's obligations under the Arch Indentures.

   Section 4.26 Year 2000.

      Any  reprogramming  required  to permit  the  proper  functioning,  in and
following the year 2000, of (i) the  Borrower's and its  Subsidiaries'  computer
systems and (ii) equipment containing embedded microchips (including systems and
equipment  supplied by others or with which the Borrower's or its  Subsidiaries'
systems  interact)  and the  testing of all such  systems and  equipment,  as so


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<PAGE>

reprogrammed,  has been completed. The cost to the Borrower and its Subsidiaries
of such reprogramming and testing and of the reasonably foreseeable consequences
of year  2000 to the  Borrower  and its  Subsidiaries  (including  reprogramming
errors and the  failure of others'  systems or  equipment)  will not result in a
Default or a Material Adverse Effect.

ARTICLE 5. CONDITIONS TO EFFECTIVENESS

      This  Agreement  shall not become  effective  until each of the  following
conditions  precedent has been  satisfied (or waived in accordance  with Section
11.1):

   Section 5.1 Evidence of Action.

      The  Administrative  Agent shall have  received a  certificate,  dated the
Third Restatement  Date, of the Secretary or Assistant  Secretary of each of the
Borrower,  Arch, the Parent and each  Subsidiary  Guarantor (i) attaching a true
and complete copy of the resolutions of its Managing Person and of all documents
evidencing other necessary corporate action (in form and substance  satisfactory
to the Administrative  Agent) taken by it to authorize the Transaction Documents
to which it is a party and all transactions contemplated thereby, (ii) attaching
a true and complete copy of its  Organizational  Documents,  (iii) setting forth
the  incumbency  of its  officer  or  officers  who may  sign  such  Transaction
Documents,  including  therein a signature  specimen of such officer or officers
and (iv)  attaching a certificate  of good standing of the Secretary of State of
the   jurisdiction  of  its   incorporation  or  formation  and  of  each  other
jurisdiction  in which it is qualified to do business  except for any such other
jurisdiction in which the failure to be in good standing could not reasonably be
expected to have a Material Adverse Effect.

   Section 5.2 This Agreement.

      The  Administrative  Agent  shall  have  received   counterparts  of  this
Agreement signed by each of the parties hereto (or receipt by the Administrative
Agent from a party  hereto of a fax  signature  page  signed by such party which
shall have agreed to promptly provide the  Administrative  Agent with originally
executed counterparts hereof).

   Section 5.3 Notes.

      The Administrative  Agent shall have received a Note for each Lender party
to this  Agreement  on the  Third  Restatement  Date,  duly  executed  by a duly
authorized officer of the Borrower.

   Section 5.4 Parent Guaranty.

      The  Administrative  Agent shall have received the Parent  Guaranty,  duly
executed by a duly authorized officer of the Parent and the Borrower.



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   Section 5.5 Borrower Pledge Agreement.

      The   Administrative   Agent  shall  have  received  the  Borrower  Pledge
Agreement, duly executed by a duly authorized officer of the Borrower.

   Section 5.6 Restricted Subsidiary Security Agreement.

      The  Administrative  Agent shall have received the  Restricted  Subsidiary
Security  Agreement,  duly  executed by a duly  authorized  officer of each Loan
Party party thereto.

   Section 5.7 Arch Guaranty.

      The  Administrative  Agent shall have  received  the Arch  Guaranty,  duly
executed by a duly authorized officer of Arch and the Borrower.

   Section 5.8 Subsidiary Guaranty.

      The Administrative Agent shall have received the Subsidiary Guaranty, duly
executed  by a duly  authorized  officer  of the  Borrower  and each  Subsidiary
Guarantor

   Section 5.9 Escrow Agreement.

      The  Administrative  Agent shall have received the Escrow Agreement,  duly
executed by a duly  authorized  officer of each Loan Party party thereto and the
Escrow Agent.

   Section 5.10 Security and Intercreditor Agreement.

      (a)  The  Administrative  Agent  shall  have  received  the  Security  and
Intercreditor Agreement, duly executed by a duly authorized officer of each Loan
Party party  thereto,  and the  Appropriate  Party shall have received (i) stock
certificates  representing all of the issued and outstanding shares of Stock (or
65% of the outstanding shares of Stock of each Non-Material  Foreign Subsidiary)
owned by or on behalf of any Loan Party in any  Subsidiary  of Arch  (other than
such thereof that  constitutes  Existing API Collateral or which, if applicable,
is already in the  possession  of the Escrow Agent and other than any Stock of a
PageNet  Canadian  Subsidiary  so long as any PageNet  Canadian Loan Document to
which  it is a  party  is in  effect);  (ii)  any  promissory  notes  and  other
instruments  evidencing all loans,  advances and other debt owed or owing to any
Loan Party (other than such thereof that constitutes  Existing API Collateral or
which, if applicable,  is already in the possession of the Escrow Agent);  (iii)
stock powers and  instruments  of transfer,  endorsed in blank,  with respect to
such stock certificates, promissory notes and other instruments; (iv) results of
a search of the Uniform  Commercial Code (or equivalent)  Liens and Intellectual
Property  filings made with respect to the Borrower,  Arch  Connecticut  Valley,
Inc. (and its  predecessors)  and Arch  Communications  Enterprises LLC (and its
predecessors),  which results shall be satisfactory to the Administrative Agent,
together with evidence  satisfactory to the Administrative  Agent that the Liens
disclosed  by such  search  results  are  permitted  by Section 8.2 or have been
released, and (v) all instruments and other documents, including UCC-1 financing
statements or amendments thereto, required by law or reasonably requested by the


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Administrative  Agent to be filed,  registered  or recorded to create or perfect
the Liens intended to be created under the Security and Intercreditor  Agreement
upon the effectiveness thereof.

      (b) The  Administrative  Agent shall have  received a  certificate  of the
Parent,  dated the Third  Restatement  Date,  certifying  that,  as of the Third
Restatement  Date,  there  will  exist no Liens on the  Collateral  (other  than
Permitted Liens).

   Section 5.11 Litigation.

      There shall be no injunction, writ, preliminary restraining order or other
order of any nature issued by any Governmental Body in any respect affecting the
transactions  contemplated  by the Loan  Documents,  and, except as set forth on
Schedule 4.6, no action or proceeding by or before any  Governmental  Body shall
have been commenced and be pending or, to the knowledge of the Borrower or Arch,
be threatened,  seeking to prevent or delay the transactions contemplated by the
Loan Documents or challenging  any other terms and provisions  hereof or thereof
or seeking any damages in  connection  therewith  which would in the  reasonable
opinion of the Parent  reasonably  be expected to have (or in the opinion of the
Managing  Agents in their sole  discretion  with respect to which written notice
has  been  provided  to the  Parent  by one or more of the  Managing  Agents  be
expected to have),  individually or in the aggregate, a Material Adverse Effect,
and the Administrative  Agent shall have received a certificate of an officer of
the Parent to the foregoing effects.

   Section   5.12  Absence  of  Defaults   and   Material   Adverse   Change;
                   Representations and Warranties, etc.

      (a)  On  the  Third  Restatement  Date  and  after  giving  effect  to the
Transactions  occurring  on  such  date,  (i)  no  Default  shall  exist  and be
continuing,  (ii)  the  representations  and  warranties  contained  in the Loan
Documents  shall be true and correct,  and (iii) since  December  31,  1998,  no
Material Adverse Change shall have occurred.

      (b) The  execution,  delivery and  performance  by the Loan Parties of the
Loan  Documents  shall not  constitute  a default or event of  default  (however
defined)  under  any  material  agreement  to which  any Loan  Party is a party,
including the Arch Indentures,  the Parent Subordinated Indenture and the Parent
Discount Notes Indenture.

      (c) All approvals  and consents of all Persons  required to be obtained on
or before the Third  Restatement Date in connection with the consummation of the
Transactions  occurring on such date have been  obtained,  all required  notices
have been given and all required waiting periods have expired.

      (d) The  Administrative  Agent shall have  received a  certificate  of the
president,  a vice president or a Financial  Officer of the Borrower,  dated the
Third  Restatement  Date,  in all respects  satisfactory  to the  Administrative
Agent, as to the matters set forth in clauses (a) through (c) above.



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   Section 5.13 Opinions of Counsel to the Loan Parties.

      The  Administrative  Agent shall have  received (i) an opinion of Hale and
Dorr,  LLP,  special counsel to the Loan Parties,  substantially  in the form of
Exhibit M and (ii) such  opinions of foreign  counsel as may be requested by the
Administrative Agent, in form and substance satisfactory to the Managing Agents,
each addressed to the Administrative  Agent, the Letter of Credit Issuer and the
Lenders and each dated the Third Restatement Date.

   Section 5.14 Opinion of FCC Counsel.

      The  Administrative  Agent shall have  received  an opinion of  Wilkinson,
Barker, Knauer & Quinn, LLP, FCC counsel to Arch and its Subsidiaries, addressed
to the Administrative Agent, the Letter of Credit Issuer and the Lenders,  dated
the Third Restatement Date, substantially in the form of Exhibit O.

   Section 5.15 Fees.


      The Borrower shall have paid to the  Administrative  Agent for the account
of the  Agents  and  the  Lenders  all  fees  which  are  payable  on the  Third
Restatement Date.

   Section 5.16 Fees and Expenses of Special Counsel.

      The reasonable fees and expenses of Special Counsel to the extent invoiced
shall have been paid.

   Section 5.17 Other Documents.

      The  Administrative  Agent shall have  received  such other  documents and
assurances as the Administrative Agent shall reasonably require.

ARTICLE 6. CONDITIONS OF LENDING - ALL EXTENSIONS OF CREDIT.

      The obligation of each Credit Party to make any Extension of Credit (other
than a participation in a Letter of Credit and other than the deemed making of a
Tranche  B-1 Loan  pursuant to Section  2.6(j))  under this  Agreement  shall be
subject to the satisfaction of the following conditions precedent as of the date
thereof:

   Section 6.1 Compliance.

      On each Credit Extension Date and after giving effect to the Extensions of
Credit thereon (i) no Default shall have occurred or be continuing; and (ii) the
representations and warranties contained in the Loan Documents shall be true and
correct with the same effect as though such  representations  and warranties had
been  made  on  such  Credit   Extension   Date,   except  to  the  extent  such
representations and warranties  specifically relate to an earlier date, in which
case such representations and warranties shall have been true and correct on and
as of such  earlier  date.  Each  Extension  of Credit and each  Credit  Request


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<PAGE>

therefor  shall  constitute  a  certification  by the Borrower as of such Credit
Extension  Date that each of the  foregoing  matters is true and  correct in all
respects.

   Section 6.2 Credit Request.

      With respect to each Extension of Credit, the  Administrative  Agent shall
have received a Credit  Request,  executed by a duly  authorized  officer of the
Borrower.

   Section 6.3 Law.

      Such  Extension of Credit shall not be prohibited by any  applicable  law,
rule or regulation.

ARTICLE 7. AFFIRMATIVE COVENANTS

      The Borrower  hereby  covenants and agrees that,  until all obligations of
the  Loan  Parties  under  the Loan  Documents  have  been  paid in full and all
Commitments of the Credit Parties have been  terminated and no obligation of any
Credit Party exists under any of the Loan Documents, any Letter of Credit or any
Existing PageNet Letter of Credit, it shall:

   Section 7.1 Financial Statements.

      Maintain a standard  system of  accounting in  accordance  with GAAP,  and
furnish or cause to be furnished to the Administrative Agent (which will in turn
promptly furnish a copy thereof to each Lender):

      (a) As soon as available  but in any event within 90 days after the end of
each fiscal year:

         (i) a copy of each of the  Parent's  and Arch's  Annual  Report on Form
10-K in respect of such fiscal  year,  together  with the  financial  statements
required to be attached thereto, and

         (ii) a copy of the Consolidated  balance sheets of the Borrower and its
Subsidiaries  as at the end of such  fiscal  year,  together  with  the  related
Consolidated  statements of operations,  stockholders'  equity and cash flows of
the Borrower and its Subsidiaries as of and through the end of such fiscal year.

      The  statements  referred to in clause (i) and (ii) above shall be audited
and certified without  qualification,  which  certification shall (x) state that
the examination by the Accountants in connection with such financial  statements
has been made in accordance  with  generally  accepted  auditing  standards and,
accordingly,  included  such  tests of the  accounting  records  and such  other
auditing procedures as were considered  necessary in the circumstances,  and (y)
include  the  opinion  of such  Accountants  that  such  Consolidated  financial
statements  have been  prepared in accordance  with GAAP in a manner  consistent
with prior fiscal periods, except as otherwise specified in such opinion.



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<PAGE>

      (b) As soon as available  but in any event within 60 days after the end of
each of the first three fiscal quarters of each fiscal year:

         (i) copy of each of the  Parent's and Arch's  Quarterly  Report on Form
10-Q in respect of such fiscal quarter,  together with the financial  statements
required to be attached thereto, and

         (ii) a copy of the Consolidated  balance sheets of the Borrower and its
Subsidiaries  as at the end of each such  quarterly  period,  together  with the
Consolidated  statements  of  operations  and cash flows of the Borrower and its
Subsidiaries  for such  period and for the  elapsed  portion of the fiscal  year
through such date.

      The statements referred to in clause (i) and (ii) above shall be certified
by a  Financial  Officer  of the  Borrower  (or such  other  officer as shall be
acceptable to the  Administrative  Agent),  as being complete and correct in all
material respects and as presenting fairly the Consolidated  financial condition
and the Consolidated results of operations of the Borrower and its Subsidiaries.

      (c)  Within  60 days  after  the end of each  of the  first  three  fiscal
quarters  of each  fiscal  year and 90 days  after  the end of the  last  fiscal
quarter of each fiscal year, a Compliance Certificate,  certified by a Financial
Officer of the Borrower  (or such other  officer as shall be  acceptable  to the
Administrative Agent).

      (d) Simultaneously  with the delivery of the annual statements required by
Section  7.1(a) and the  quarterly  statements  required  by Section  7.1(b),  a
certificate  of a Financial  Officer of the Borrower  (or such other  officer as
shall  be  acceptable  to  the   Administrative   Agent)  in  detail  reasonably
satisfactory  to  the  Administrative  Agent  setting  forth  information,  on a
Consolidated  basis  for  the  relevant  period,   with  respect  to  (i)  pager
activations during the preceding fiscal quarter, (ii) information indicating the
net increase or decrease in the number of Pagers in Service, (iii) the amount of
Capital Expenditures  incurred broken down by (A) purchases of pagers (including
the  number of pagers  purchased,  the  average  price per pager and the cost of
pagers  sold)  and (B)  other  Capital  Expenditures,  and  (iv) the  amount  of
Additional Benbow Investments.

      (e) Simultaneously  with the delivery of the annual statements required by
Section 7.1(a), a certificate of a Financial Officer of the Borrower (i) setting
forth the information  required pursuant to the Schedules to the Borrower Pledge
Agreement,  the Restricted  Subsidiary Security  Agreement,  the Amended PageNet
Collateral Documents and the Security and Intercreditor  Agreement or confirming
that there has been no change in such information  since the date thereof or the
date of the most recent  certificate  delivered  pursuant to this  paragraph and
(ii) certifying that all Uniform  Commercial Code financing  statements or other
appropriate  filings,  recordings or  registrations,  including  all  refilings,
rerecordings  and  reregistrations,  containing a description  of the Collateral
have been filed of record in each  governmental,  municipal or other appropriate
office in each jurisdiction identified pursuant to clause (i) of this paragraph,
and all other  actions have been taken,  to the extent  necessary to protect and
perfect the security interest granted under the Collateral Documents.



                                       77
<PAGE>

      (f) Promptly upon the request of the Administrative Agent on behalf of the
Required  Lenders,  copies of the  projected  Consolidated  balance  sheets  and
statements  of  operations  of the  Borrower and its  Subsidiaries  for the next
fiscal year,  together  with such other  information  and  documentation  as any
Lender may reasonably request in connection therewith.

      (g) No later than 60 days after the  beginning of each fiscal year, a copy
of the Consolidated annual budgets of the Borrower and its Subsidiaries for such
fiscal year.

      (h) Such other information and documentation  with respect to the Borrower
and its Subsidiaries as any Lender may reasonably request from time to time.

   Section 7.2 Certificates; Other Information.

      Furnish or cause to be furnished to the  Administrative  Agent (which will
in turn promptly furnish a copy thereof to each Lender):

      (a) Prompt written notice if: (i) any  Indebtedness of the Borrower or any
of its  Subsidiaries  is declared or shall  become due and payable  prior to its
stated  maturity,  or called  and not paid when due,  (ii) a default  shall have
occurred  under any note  (other than the Notes) or the holder of any such note,
or other evidence of Indebtedness,  certificate or security  evidencing any such
Indebtedness  or any  obligee  with  respect  to any other  Indebtedness  of the
Borrower  or  any of  its  Subsidiaries  has  the  right  to  declare  any  such
Indebtedness due and payable prior to its stated maturity,  or (iii) there shall
occur and be continuing a Default or an Event of Default;

      (b) Prompt written notice of: (i) any citation,  summons,  subpoena, order
to show cause or other document naming the Borrower or any of its Subsidiaries a
party to any proceeding before any Governmental Body which might have a Material
Adverse  Effect or which calls into question the validity or  enforceability  of
any of the Loan Documents, and include with such notice a copy of such citation,
summons,  subpoena,  order to show  cause or other  document,  (ii) any lapse or
other  termination  of  any  material  license,   permit,   franchise  or  other
authorization issued to the Borrower or any of its Subsidiaries by any Person or
Governmental  Body,  except  for the  lapse  or  other  termination  thereof  in
accordance with the terms thereof, provided that such lapse or termination could
not  reasonably  be expected to have a Material  Adverse  Effect,  and (iii) any
refusal by any Person or Governmental  Body to renew or extend any such material
license,  permit,  franchise or other authorization,  which lapse,  termination,
refusal or dispute might have a Material Adverse Effect;

      (c) Promptly upon becoming available,  copies of all (i) regular, periodic
or special  reports,  schedules and other  material which the Borrower or any of
its Subsidiaries may now or hereafter be required to file with or deliver to any
securities exchange or the SEC, or any other Governmental Body succeeding to the
functions thereof, (ii) material reports, schedules and other material which the
Borrower or any of its  Subsidiaries  may now or  hereafter  be required to file
with or deliver to the FCC and (iii)  material news releases and annual  reports
relating to the Borrower or any of its Subsidiaries;

      (d) Prompt written notice of the occurrence of a Change of Control;



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<PAGE>

      (e) Intentionally omitted.

      (f)  Written  notice at least 120 days  prior to the  taking of any action
permitted  under (i) Section  8.1(v)(A),  (ii)  Section  8.3(i),  (iii)  Section
8.5(a)(i)  to the extent such  action  relates to a  Restricted  Payment to Arch
(other than such a  Restricted  Payment on a day on which Arch is  obligated  to
make a payment in respect of Required  Obligations so long as the amount thereof
does not exceed the amount of the Required Obligations payable on such date) and
(iv) Section 8.8(b).

   Section 7.3 Legal Existence.

      Except as  provided  in  Section  8.3,  maintain,  and  cause  each of its
Subsidiaries to maintain, its legal existence, and maintain its good standing in
the  jurisdiction  of  its  incorporation  or  organization  and in  each  other
jurisdiction in which the failure so to do could  reasonably be expected to have
a Material Adverse Effect.

   Section 7.4 Taxes.

      Pay and discharge when due, and cause each of its  Subsidiaries  so to do,
all taxes, assessments and governmental charges, license fees and levies upon or
with respect to it and upon the income, profits and Property of the Borrower and
its Subsidiaries taken as a whole, which if unpaid, could reasonably be expected
to have a  Material  Adverse  Effect  or  become a Lien on the  Property  of the
Borrower or such  Subsidiary not permitted  under Section 8.2, unless and to the
extent only that such taxes, assessments, charges, license fees and levies shall
be contested in good faith and by appropriate  proceedings  diligently conducted
by the Borrower or such  Subsidiary  and provided that any such  contested  Tax,
assessment,  charge, license fee or levy shall not constitute, or create, a Lien
on any Property of the Borrower or such  Subsidiary  senior to the Liens granted
by the  Collateral  Documents on such  Property,  and further  provided that the
Borrower shall give the  Administrative  Agent prompt notice of such contest and
that such  reserve or other  appropriate  provision  as shall be required by the
Accountants in accordance with GAAP shall have been made therefor.

   Section 7.5 Insurance.

      (a) Maintain,  and cause each of its  Subsidiaries to maintain,  insurance
with financially  sound insurance  carriers on such of its Property,  against at
least such risks,  and in at least such amounts,  as are usually insured against
by similar businesses, and which, in the case of property insurance, shall be in
amounts sufficient to prevent the Borrower from becoming a co-insurer, and which
shall be on terms reasonably  satisfactory to the Administrative Agent, and file
with the  Administrative  Agent within 10 days after request therefor a detailed
list of such  insurance  then in  effect,  stating  the  names  of the  carriers
thereof, the policy numbers, the insureds thereunder,  the amounts of insurance,
dates of  expiration  thereof,  and the  Property  and  risks  covered  thereby,
together  with a  certificate  of a Financial  Officer (or such other officer as
shall be acceptable to the Administrative Agent) of the Borrower certifying that
in the opinion of such officer such  insurance is adequate in nature and amount,
complies with the  obligations of the Borrower and its  Subsidiaries  under this
Section, and is in full force and effect.



                                       79
<PAGE>

      (b) Insurance  Covering Tangible Personal  Property.  At all times insure,
and cause each of its  Subsidiaries  to  insure,  all of its  tangible  personal
Property in which a security  interest may be required to be granted pursuant to
the Collateral Documents against all risks as are customarily insured against by
companies  engaged in similar  businesses,  and  maintain  at all times  general
public liability  insurance with respect to all such tangible  personal Property
against  damage  resulting  from  bodily  injury,  including  death or damage to
Property of others,  all such  insurance  being in amounts equal to no less than
that  customarily  carried by  companies  engaged in similar  businesses,  which
insurance shall be on terms reasonably satisfactory to the Administrative Agent.
Promptly  upon  request  therefor,  the  Borrower  will  deliver  or cause to be
delivered to the  Administrative  Agent originals or duplicate  originals of all
such policies of insurance.  All such  insurance  policies  shall be endorsed to
provide that, in respect of the interests of the Bank  Collateral  Agent and the
Collateral  Agents:  (i) the Bank Collateral Agent or the Collateral  Agents, as
the case may be, shall be an  additional  insured and,  with respect to property
insurance,  sole loss payee in respect of each claim  relating to such  tangible
personal Property constituting  Collateral in which the Bank Collateral Agent or
the Collateral  Agents, as the case may be, has been granted a security interest
and resulting in a payment under any such insurance policy  exceeding  $250,000,
(ii) thirty days' prior written notice of any cancellation, reduction of amounts
payable,  or any changes and  amendments  shall be given to the Bank  Collateral
Agent or the Collateral  Agents, as the case may be, except that ten days' prior
written notice of cancellation  shall be given to the Bank  Collateral  Agent or
the  Collateral  Agents,  as the case may be, if  cancellation  results from the
failure to pay premiums,  and (iii) the Bank Collateral  Agent or the Collateral
Agents, as the case may be, shall have the right, but not the obligation, to pay
any  premiums  due or to acquire  other such  insurance  upon the failure of the
Borrower or such  Subsidiary  to pay the same or to so insure.  Provided that no
Default  or Event of  Default  shall  exist,  the Bank  Collateral  Agent or the
Collateral Agents, as the case may be, agree, promptly upon its receipt thereof,
to pay over to the Borrower or the  appropriate  Subsidiary the proceeds of such
payment to enable the Borrower or such Subsidiary to repair,  restore or replace
the  Property  subject to such claim.  To the extent  that the  Borrower or such
Subsidiary does not elect to repair, restore or replace such Property, an amount
equal to the proceeds which are not employed to repair,  restore or replace such
Property  shall be applied as required by Section  2.4. If a Default or Event of
Default shall exist, the Administrative  Agent or, if applicable pursuant to the
applicable  Collateral  Document,  the Bank  Collateral  Agent or the Collateral
Agents,  as the  case  may be,  shall  hold  the  proceeds  of such  payment  as
Collateral  (to the extent of its security  interest in such Property) and apply
such proceeds in accordance with the provisions thereof.

      (c) Concurrent Insurance. Neither the Borrower nor any of its Subsidiaries
shall take out separate  insurance  concurrent  in form or  contributing  in the
event of loss with that  required to be maintained  pursuant to  subsection  (b)
above unless the Administrative  Agent has approved the carrier and the form and
content of the insurance policy,  including,  without limitation,  naming of the
Bank Collateral Agent and the Collateral Agents as additional  insureds and sole
loss payees thereunder.



                                       80
<PAGE>

   Section 7.6 Payment of Indebtedness and Performance of Obligations.

      Pay and discharge when due, and cause each of its  Subsidiaries  so to do,
all  lawful  Indebtedness,  obligations  and claims  for  labor,  materials  and
supplies  or  otherwise  which,  if unpaid,  might (i) have a  Material  Adverse
Effect,  or (ii)  become  a Lien  upon  the  Property  of the  Borrower  or such
Subsidiary  other than a Permitted Lien,  unless and to the extent only that the
validity of such  Indebtedness,  obligation  or claim shall be contested in good
faith and by  appropriate  proceedings  diligently  conducted by the Borrower or
such Subsidiary, and that any such contested Indebtedness, obligations or claims
shall not constitute,  or create,  a Lien on any Property of the Borrower or any
of its Subsidiaries senior to any Lien granted to the Administrative Agent under
the  Collateral  Documents  on such  Property,  and  further  provided  that the
Borrower shall give the  Administrative  Agent prompt notice of any such contest
and that such reserve or other appropriate provision as shall be required by the
Accountants in accordance with GAAP shall have been made therefor.

   Section 7.7 Condition of Property.

      At all times, maintain, protect and keep in good repair, working order and
condition (ordinary wear and tear excepted),  and cause each of its Subsidiaries
so to do, all Property  reasonably deemed by the Borrower's or such Subsidiary's
management to be necessary to the operation of its business.

   Section 7.8 Observance of Legal Requirements; ERISA.

      Observe and comply in all respects,  and cause each of its Subsidiaries so
to do, with all laws (including ERISA),  ordinances,  orders, judgments,  rules,
regulations,  certifications,  franchises,  permits,  licenses,  directions  and
requirements of all Governmental  Bodies, which now or at any time hereafter may
be  applicable  to the Borrower or such  Subsidiary,  a violation of which could
reasonably be expected to have a Material Adverse Effect, except such thereof as
shall be  contested  in good  faith and by  appropriate  proceedings  diligently
conducted by the Borrower or such  Subsidiary,  provided that the Borrower shall
give the Administrative  Agent and the Lenders prompt notice of such contest and
that such  reserve or other  appropriate  provision  as shall be required by the
Accountants in accordance with GAAP shall have been made therefor.

   Section 7.9 Inspection of Property; Books and Records; Discussions.

      Keep proper  books of record and  account in which full,  true and correct
entries in conformity with GAAP and all requirements of law shall be made of all
dealings and  transactions in relation to its business and activities and permit
representatives  of the Administrative  Agent and any Lender,  upon at least one
Business  Day's  prior  notice,  to visit its  offices,  to  inspect  any of its
Property  and  examine and make  copies or  abstracts  from any of its books and
records at any reasonable time and as often as may reasonably be desired, and to
discuss the business,  operations,  prospects,  licenses, Property and financial
condition of the Borrower or any of its Subsidiaries with the executive officers
of the Borrower and its Subsidiaries.



                                       81
<PAGE>

   Section 7.10 Licenses, Etc.

      Maintain,  and cause each of its  Subsidiaries to maintain,  in full force
and  effect,  all  material   licenses,   Intellectual   Property,   franchises,
authorizations  and  other  rights  as are  necessary  for  the  conduct  of its
business.

   Section 7.11 Interest Rate Protection Agreements.

      Enter  into  and  maintain  for a  period  of two  years  from  the  Third
Restatement  Date and, if the Merger  Effective Date occurs,  two years from the
Merger  Effective  Date,  Interest  Rate  Protection  Agreements,  in  form  and
substance reasonably  satisfactory to the Administrative  Agent, with respect to
an amount (if greater than zero) equal to not less than the  difference  between
(i) 50% of Total Debt  outstanding  from time to time,  minus (ii) the amount of
Total Debt outstanding from time to time that is at a fixed (and not a variable)
rate or subject to Interest Rate Protection Agreements.

   Section 7.12 Fixed Charge Coverage Ratio.

      Maintain,  or cause to be  maintained,  as of the last day of each  fiscal
quarter  commencing with the fiscal quarter ending June 30, 2001, a Fixed Charge
Coverage Ratio greater than 1.00:1.00.

   Section 7.13 Pro-forma Debt Service Coverage Ratio.

      Maintain,  or cause to be  maintained,  as of the last day of each  fiscal
quarter, a Pro-forma Debt Service Coverage Ratio greater than 1.25:1.00.

   Section 7.14 Interest Coverage Ratio.

      (a) For the  period  from the Third  Restatement  Date  until  the  Merger
Effective Date and, if the Merger  Effective Date does not occur, for the period
on and after the Third Restatement Date, maintain, or cause to be maintained, as
of the last day of each fiscal quarter ended during each period set forth in the
following  table,  an Interest  Coverage  Ratio greater than the ratio set forth
opposite such period in the following table:

========================================================= =====================
                        Period                                   Ratio
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
Third Restatement Date through September 30, 2000               2.00:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
December 31, 2000 and thereafter                                2.25:1.00
========================================================= =====================

      (b) On and after  the  Merger  Effective  Date,  maintain,  or cause to be
maintained,  as of the last day of each fiscal  quarter ended during each period
set forth in the following  table,  an Interest  Coverage Ratio greater than the
ratio set forth opposite such period in the following table:



                                       82
<PAGE>

========================================================= =====================
                        Period                                   Ratio
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
Merger Effective Date through December 31, 2000                 2.00:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
March 31, 2001 through September 30, 2001                       2.25:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
December 31, 2001 and thereafter                                2.50:1.00
========================================================= =====================

         Section 7.15      Total Leverage Ratio.

      (a) For the  period  from the Third  Restatement  Date  until  the  Merger
Effective Date and, if the Merger  Effective Date does not occur, for the period
on and after the Third Restatement Date:

         (i) At all times prior to the  Existing  Arch  Senior Note  Termination
Date, maintain,  or cause to be maintained,  during each period set forth in the
following  table,  a Total  Leverage  Ratio not greater than the ratio set forth
opposite such period in the following table:

========================================================= =====================
                        Period                                   Ratio
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
Third Restatement Date through June 29, 2000                    4.50:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
June 30, 2000 through June 29, 2001                             4.25:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
June 30, 2001 through June 29, 2002                             4.00:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
June 30, 2002 and thereafter                                    3.50:1.00
========================================================= =====================

         (ii)  At  all  times  on  and  after  the  Existing  Arch  Senior  Note
Termination Date,  maintain,  or cause to be maintained,  a Total Leverage Ratio
not greater than 5.00:1.00.

      (b) On and after the Merger Effective Date:

         (i) At all times prior to the  Existing  Arch  Senior Note  Termination
Date, maintain,  or cause to be maintained,  during each period set forth in the
following  table,  a Total  Leverage  Ratio not greater than the ratio set forth
opposite such period in the following table:

========================================================= =====================
                        Period                                   Ratio
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
Merger Effective Date through June 29, 2001                     4.00:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
June 30, 2001 through June 29, 2002                             3.50:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
June 30, 2002 and thereafter                                    3.00:1.00
========================================================= =====================

         (ii)  At  all  times  on  and  after  the  Existing  Arch  Senior  Note
Termination Date,  maintain,  or cause to be maintained,  a Total Leverage Ratio
not greater than 4.00:1.00.

   Section 7.16 API Leverage Ratio.

      (a) For the  period  from the Third  Restatement  Date  until  the  Merger
Effective Date and, if the Merger  Effective Date does not occur, for the period
on and after the Third Restatement Date, maintain, or cause to be maintained, at
all times, an API Leverage Ratio not greater than 2.50:1.00.



                                       83
<PAGE>

      (b) On and after the Merger  Effective  Date,  at all times  maintain,  or
cause to be maintained,  during each period set forth in the following table, an
API Leverage  Ratio not greater than the ratio set forth opposite such period in
the following table:

========================================================= =====================
                        Period                                   Ratio
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
Merger Effective Date through June 29, 2001                     3.00:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
June 30, 2001 through June 29, 2002                             2.50:1.00
--------------------------------------------------------- ---------------------
--------------------------------------------------------- ---------------------
June 30, 2002 and thereafter                                    2.00:1.00
========================================================= =====================

   Section 7.17 Minimum Net Revenues.

      As of the last day of each full fiscal  quarter during the period from the
Merger  Effective  Date through and including the last day of the fiscal quarter
ending on the second anniversary  thereof (or, if such second anniversary is not
the last day of a fiscal quarter,  the first fiscal quarter ending  thereafter),
have  net  revenues  of  the  Borrower  and  its  Subsidiaries  determined  on a
Consolidated  basis in accordance with GAAP for each such full fiscal quarter of
not less than $350,000,000.

   Section 7.18 Additional Subsidiaries; Material Foreign Subsidiaries.

      (a) Within five Business Days thereof,  notify the Administrative Agent in
writing  if any  Person  shall  have  become a  Subsidiary  of the Parent or any
Foreign Subsidiary of the Parent shall have become a Material Foreign Subsidiary
and within 10 days thereof cause each such Person (other than (i) a Person which
is a Non-Material Foreign Subsidiary,  and (ii) Merger Sub so long as Merger Sub
has no assets  and is not  conducting  any  business)  (each such  Person  being
referred to herein as a "New  Subsidiary  Guarantor")  to execute and deliver to
the  Administrative  Agent a completed Guaranty  Supplement,  Security Agreement
Supplement,  and if the Escrow Agreement is then in effect, a Joinder Supplement
and, subject to the effectiveness of the Springing  Sections of the Security and
Intercreditor  Agreement,  to grant a first  priority  security  interest in its
Collateral  (as defined in the  Security  and  Intercreditor  Agreement)  and to
deliver or cause each New  Subsidiary  Guarantor  to deliver to the  Appropriate
Party:  (i) such UCC-1  financing  statements  or  amendments  thereto and other
documents as requested by the  Administrative  Agent,  together  with either (x)
satisfactory  evidence that all taxes  payable in connection  with the filing of
the UCC-1  financing  statements  have been paid or (y) a check  payable to each
applicable  Governmental  Body in payment  of each such tax,  (ii) all shares of
Stock owned by such New  Subsidiary  Guarantor in any  Subsidiary  of the Parent
(except that, if such Stock is of a Non-Material  Foreign Subsidiary,  shares of
Stock of such  Non-Material  Foreign  Subsidiary  shall be limited to 65% of the
outstanding   shares  of  Stock   thereof)  and  promissory   notes   evidencing
Indebtedness  of any Subsidiary of the Parent to such New Subsidiary  Guarantor,
and (iii) such agreements  (including  additional pledge agreements with respect
to the pledge of Stock of a Foreign Subsidiary), Grants of Security Interest and
Powers of Attorney, certificates, instruments and opinions of counsel (including
foreign counsel opinions) as the Administrative Agent may request.



                                       84
<PAGE>

      (b) Deliver or cause to be delivered to the Appropriate Party with respect
to each Person described in subsection (a) above which is a Non-Material Foreign
Subsidiary  (other than any PageNet  Canadian  Subsidiary so long as the PageNet
Canadian  Loan  Documents  to which  it is a party  are in  effect),  65% of the
outstanding shares of Stock of such Non-Material  Foreign  Subsidiary,  together
with (i) such  UCC-1  financing  statements  or  amendments  thereto  and  other
documents as requested by the  Administrative  Agent,  (ii) all promissory notes
evidencing  Indebtedness of such Non-Material  Foreign Subsidiary that are owned
by or on  behalf  of any  Loan  Party,  and  (iii)  such  agreements  (including
additional  pledge  agreements  with  respect to the pledge of the Stock of such
Non-Material  Foreign  Subsidiary),  certificates,  instruments  and opinions of
counsel  (including  foreign counsel opinions) as the  Administrative  Agent may
request.

      (c) Notify the  Administrative  Agent in writing of the  occurrence of the
Benbow Guaranty Date and cause Benbow  Investments to comply with the provisions
of subsection  (a) above as if it were a new  Subsidiary  within the time period
specified  therein.  In the event that the Benbow  Guaranty Date would occur but
for the  designation  of Benbow  Investments as an  Unrestricted  Subsidiary for
purposes  of  the  Arch  Indentures,  within  the  time  period  referred  to in
subsection  (a) above,  take or cause to be taken such action as is necessary to
designate Benbow Investments as a Restricted Subsidiary for purposes of the Arch
Indentures.

   Section 7.19 Additional Collateral.

      If any Loan Party acquires any Property that would constitute  Collateral,
as defined in any of the Collateral  Documents,  the Borrower  shall,  and shall
cause each such Loan Party to, execute and deliver to the Appropriate  Party any
and all documents,  financing statements,  agreements and instruments,  and take
all such further actions  (including the filing and recording of UCC-1 financing
statements or amendments thereto, fixture filings, mortgages, deeds of trust and
other  documents)  that may be required  under any  applicable  law, or that the
Administrative  Agent  or the  Appropriate  Party  may  reasonably  request,  to
effectuate  the  transactions  contemplated  by the Loan  Documents or to grant,
preserve,  protect or perfect the Liens created or intended to be created by the
Collateral  Documents or the  validity or priority of any such Lien,  all at the
expense of the Loan Parties.

   Section 7.20 Escrowed Collateral.

      The Springing  Sections of the Security and Intercreditor  Agreement shall
become  effective on the earliest to occur of (i) the Existing  Arch Senior Note
Termination  Date,  (ii) the Merger  Effective Date and (iii) the request of the
Administrative  Agent pursuant to the direction of Minority  Lenders.  Each Loan
Party  shall  deliver  to  the  Administrative  Agent,  such  documents  as  the
Administrative  Agent may request in  connection  therewith,  including (i) duly
executed UCC-1 financing statements or amendments thereto,  together with either
(x)  satisfactory  evidence that all taxes payable in connection with the filing
of the UCC-1 financing  statements have been paid or (y) a check payable to each
applicable  Governmental  Body in payment of each such tax,  (ii) duly  executed
Grants of Security  Interest and Powers of Attorney,  (iii)  opinions of counsel
(including opinions of foreign counsel),  in form and substance  satisfactory to


                                       85
<PAGE>

the  Administrative  Agent,  with respect to the  enforceability of the security
interests so granted and the perfection  thereof and (iv) other documents as may
reasonably be requested by the  Administrative  Agent. In connection  therewith,
the Administrative  Agent is hereby irrevocably  authorized and empowered as the
Borrower's and each of its  Subsidiaries'  attorney-in-fact  to execute and file
such UCC-1  financing  statements  or  amendments  thereto,  Grants of  Security
Interest  and  instructions  to the Escrow Agent and to deliver or file the same
and to make, at the Administrative Agent's option, all other filings and to give
all other notices as it shall  reasonably  deem necessary with respect to any of
the  Collateral,  all of which may be done with or without the  signature of any
Loan Party.  The  foregoing  power  constitutes a power coupled with an interest
which shall survive until all of the  obligations  under the Loan Documents have
been  indefeasibly  paid in full in cash and this Agreement and the  Commitments
have been terminated and all outstanding  Letters of Credit and Existing PageNet
Letters of Credit have expired or otherwise been terminated.

ARTICLE 8. NEGATIVE COVENANTS

      The Borrower  hereby  covenants and agrees that,  until all obligations of
the  Loan  Parties  under  the Loan  Documents  have  been  paid in full and all
Commitments of the Credit Parties have been  terminated and no obligation of any
Credit Party exists under any of the Loan Documents, any Letter of Credit or any
Existing PageNet Letter of Credit, it shall not:

   Section 8.1 Indebtedness.

      Create,  incur,  assume or suffer to exist any liability for Indebtedness,
or permit any of its Subsidiaries so to do, except:

         (i)  Indebtedness  due  under  the Loan  Documents  (including  PageNet
Reimbursement Obligations),

         (ii)  Indebtedness of the Borrower or any of its Subsidiaries  existing
on the Third Restatement Date as set forth on Schedule 8.1, including, except as
set forth in the proviso  below,  refinancings  thereof but not increases in the
amount of any  thereof,  provided  that,  without  the  consent of the  Required
Lenders,  refinancings  of such  existing  Indebtedness  shall not be  permitted
unless the interest rate on any such refinanced Indebtedness is not in excess of
the rate  available for similar  borrowings by similar  borrowers at the time of
the  refinancing,  the final  maturity of such  refinanced  Indebtedness  is not
earlier than the Tranche C Maturity Date, the average  weighted life to maturity
of such refinanced  Indebtedness shall be greater than the average weighted life
to maturity of the  Indebtedness  under the Loan Documents  determined as of the
date  of  such  refinancing  and  if  the   Indebtedness   being  refinanced  is
subordinated  to the  Indebtedness  under the Loan  Documents,  such  refinanced
Indebtedness  shall be so  subordinated on the same terms and to the same extent
as such Indebtedness being so refinanced,

         (iii) Indebtedness under the Intercompany Notes,

         (iv) Contingent Obligations to the extent permitted by Section 8.4,



                                       86
<PAGE>

         (v) prior to the Existing Arch Senior Note Termination Date,  unsecured
Indebtedness  (A) between the Borrower and Arch,  and (B) among the Borrower and
its  Subsidiaries  (other  than  Benbow  Investments  until  such time as Benbow
Investments ceases to be an Unrestricted  Subsidiary under and as defined in the
Arch  Indentures,  has become a Subsidiary  Guarantor and has granted a security
interest to the Collateral Agents in its assets pursuant to Section 7.18(c)),

         (vi) on and after the  Existing  Arch  Senior  Note  Termination  Date,
unsecured and  subordinated  Indebtedness (A) between the Borrower and Arch, (B)
between  the  Borrower  and  any  Subsidiary  Guarantor,  and  (C)  between  any
Subsidiary  Guarantor  and any other  Subsidiary  Guarantor,  in each case which
shall be  subordinated  to the  Borrower  Obligations  on terms  and  conditions
acceptable to the Administrative  Agent and the Required Lenders  ("Intercompany
Subordinated Debt"),

         (vii)  Indebtedness of the Borrower in respect of the ACE  Subordinated
Note in a principal amount not in excess of $50,000,000,

         (viii) Indebtedness of Arch under the Arch Senior Notes,  provided that
the  principal  amount of any  Replacement  Notes shall not exceed the principal
amount of the Arch Senior Notes (other than such Replacement  Notes) repaid with
the proceeds thereof,

         (ix) on and  after  the  Merger  Effective  Date,  Indebtedness  of the
PageNet  Canadian  Subsidiaries  in  respect  of (A)  the  PageNet  Canada  Loan
Documents  in  an  aggregate   principal   amount  not  in  excess  of  Canadian
$64,350,000,  (B) the Madison Holdings Loan Documents in an aggregate  principal
amount not in excess of Canadian $28,500,000,  and (C) without duplication,  the
guaranties  thereof by PageNet and its  Subsidiaries  which are in effect on the
Merger Effective Date; and

         (x) other Indebtedness  (including  Non-Competition  Agreements) of the
Borrower and the Subsidiary Guarantors in an outstanding principal amount not to
exceed 2.5% of Maximum Permitted Indebtedness.

   Section 8.2 Liens.

      Create,  incur,  assume  or  suffer  to  exist  any  Lien  upon any of its
Property,  whether  now  owned  or  hereafter  acquired,  or  permit  any of its
Subsidiaries so to do, except

         (i) Liens for taxes,  assessments or similar  charges,  incurred in the
ordinary course of business,  not delinquent or, if delinquent,  being contested
in accordance with Section 7.4,

         (ii) Liens created in favor of the Administrative Agent pursuant to the
Collateral Documents,

         (iii) mechanics', carriers', warehousemen's,  workmen's, repairmen's or
other like statutory Liens incurred in the ordinary course of business, provided


                                       87
<PAGE>

that the obligations  secured thereby are not past due or are being contested in
good faith by appropriate proceedings in accordance with Section 7.6,

         (iv)  Liens  existing  on the  Third  Restatement  Date as set forth in
Schedule 8.2,

         (v)  Liens  when and if  granted  to the  Collateral  Agents  under the
Security and Intercreditor Agreement,

         (vi) Liens under the PageNet  Canadian Loan  Documents  existing on the
Merger  Effective  Date,  provided  that such  Liens do not  extend to any other
Property of the Borrower or any of its  Subsidiaries  (other than the applicable
PageNet Canadian Subsidiaries), and

         (vii)  other  Liens  securing  Indebtedness  of the  Borrower  and  the
Subsidiary  Guarantors in an outstanding  principal amount not to exceed 2.5% of
Maximum Permitted Indebtedness.

   Section 8.3 Merger.

      Consolidate  with,  be acquired  by, or merge into or with any Person,  or
sell, lease or otherwise  dispose of all or substantially all of its Property or
any of its Stock or otherwise  alter or modify its  corporate  name,  structure,
status or existence, or permit any of its Subsidiaries so to do, except:

         (i) prior to the Existing Arch Senior Note Termination  Date, Arch, the
Borrower or any of its Subsidiaries  (other than Benbow  Investments  until such
time as Benbow Investments ceases to be an Unrestricted  Subsidiary under and as
defined  in the Arch  Indentures,  has  become a  Subsidiary  Guarantor  and has
granted a security  interest to the Collateral  Agents in its assets pursuant to
Section 7.18(c)) may merge or consolidate with, or transfer all or substantially
all of its assets to, Arch, the Borrower or any of its Subsidiaries  (other than
Benbow  Investments  until  such  time as  Benbow  Investments  ceases  to be an
Unrestricted Subsidiary under and as defined in the Arch Indentures,  has become
a Subsidiary  Guarantor  and has granted a security  interest to the  Collateral
Agents in its assets pursuant to Section  7.18(c)),  provided that in any merger
involving the Borrower, the Borrower shall be the survivor;

         (ii) on and after the Existing Arch Senior Note  Termination  Date, the
Borrower or any Subsidiary  Guarantor may merge or consolidate with, or transfer
all or  substantially  all of its  assets  to, the  Borrower  or any  Subsidiary
Guarantor,  provided that (A) the  Administrative  Agent shall have received ten
days' prior written  notice  thereof,  (B)  immediately  before and after giving
effect  thereto no Default or Event of Default shall exist and (C) in any merger
involving the Borrower, the Borrower shall be the survivor;

         (iii) at all times, (A) sales of Property to the extent permitted under
Section 8.8 and (B) mergers involving Subsidiaries of the Borrower as part of an


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Acquisition  permitted  by  Section  8.6,  provided  that no Stock is  issued in
connection therewith except to the extent permitted by Section 8.13; and

         (iv) Merger Sub may  consummate the PageNet Merger subject to the prior
or simultaneous fulfillment of the following conditions precedent:

            (A)  Evidence  of  Action  by  PageNet  and  its  Subsidiaries.  The
Administrative  Agent  shall  have  received  a  certificate,  dated the  Merger
Effective  Date, of the Secretary or Assistant  Secretary of each of PageNet and
each of its  Subsidiaries  that is a party to a  Transaction  Document  and: (1)
either (x) attaching a true and complete copy of the resolutions of its Board of
Directors and of all documents  evidencing other necessary  corporate action (in
form and  substance  satisfactory  to the  Administrative  Agent) taken by it to
authorize the Transaction  Documents to which it is a party and the consummation
of the Transactions or (y) the conditions set forth in Section 8.3(v) shall have
been  satisfied,  (2) attaching a true and complete copy of its  certificate  of
incorporation  and by-laws,  (3) setting forth the  incumbency of its officer or
officers who may sign the Loan Documents, including therein a signature specimen
of such officer or officers, and (4) attaching a certificate of good standing of
the  Secretary of State of the  jurisdiction  of its  incorporation  and of each
other state in which it is qualified to do  business,  together  with such other
documents as the Administrative Agent shall require.

            (B) Evidence of Action by the Parent,  Arch, the Borrower and Merger
Sub.  The  Administrative  Agent shall have  received a  certificate,  dated the
Merger  Effective  Date, of the Secretary or Assistant  Secretary of each of the
Parent, Arch, the Borrower and Merger Sub and: (1) attaching a true and complete
copy  of the  resolutions  of  its  Board  of  Directors  and  of all  documents
evidencing other necessary corporate action (in form and substance  satisfactory
to the Administrative  Agent) taken by it to authorize the Transaction Documents
to which it is a party and the  consummation of the  Transactions  and all other
transactions contemplated thereby (or, if such resolutions were delivered on the
Third Restatement Date pursuant to Section 5.1, certifying that such resolutions
have not thereafter  been amended or modified and that they remain in full force
and effect),  (2) in the case of Merger Sub,  attaching a true and complete copy
of its certificate of incorporation and by-laws, and, in the case of the Parent,
Arch and the Borrower, as to its certificate of incorporation and by-laws having
not been amended,  modified or changed in any manner since the Third Restatement
Date,  or, if so, setting forth the same and (3) setting forth the incumbency of
its officer or officers who may sign such Transaction  Documents,  together with
such other documents as the Administrative Agent shall require.

            (C) Notes. The  Administrative  Agent shall have received a Note for
each  Tranche  B-1 Lender  which is not a Tranche A Lender,  Tranche B Lender or
Tranche C Lender,  dated the Merger  Effective  Date,  duly  executed  by a duly
authorized officer of the Borrower.

            (D)  Guaranty  Supplement.   The  Administrative  Agent  shall  have
received  a  Guaranty  Supplement  duly  executed  by  PageNet  and  each of its
Subsidiaries (other than Non-Material Foreign Subsidiaries).



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            (E) Security Agreement  Supplement.  The Administrative  Agent shall
have received a Security Agreement Supplement, duly executed by PageNet and each
of its Subsidiaries  (other than Non-Material  Foreign  Subsidiaries),  together
with: (i) stock certificates representing all of the outstanding shares of Stock
of PageNet and its Subsidiaries  (other than any PageNet Canadian  Subsidiary so
long as the  PageNet  Canadian  Loan  Documents  to which  it is a party  are in
effect)  which are owned by or on behalf of any Loan Party  (except that, if any
such Subsidiary is a Non-Material  Foreign  Subsidiary,  shares of Stock thereof
may be limited to 65% of the outstanding shares of Stock thereof),  after giving
effect to the Transactions  (other than such thereof that  constitutes  Existing
API Collateral or Existing  PageNet  Collateral);  (ii) any promissory notes and
other instruments evidencing all loans, advances and other debt owed or owing to
any Loan  Party as of the  Merger  Effective  Date  after  giving  effect to the
Transactions  (other than such thereof that constitutes  Existing API Collateral
or Existing PageNet Collateral); (iii) stock powers and instruments of transfer,
endorsed in blank, with respect to such stock certificates, promissory notes and
other  instruments;  (iv) all instruments and other  documents,  including UCC-1
financing   statements,   required  by  law  or  reasonably   requested  by  the
Administrative  Agent or the  Collateral  Agents  (or any of them) to be  filed,
registered  or recorded  to create or perfect  the Liens  intended to be created
under the  Security  and  Intercreditor  Agreement;  together  with  either  (x)
satisfactory  evidence that all taxes  payable in connection  with the filing of
the UCC-1  financing  statements  have been paid or (y) a check  payable to each
applicable  Governmental  Body in  payment  of each such tax,  (v)  results of a
search of the Uniform  Commercial Code (or equivalent),  tax, judgment Liens and
Intellectual Property filings made with respect to PageNet and its Subsidiaries,
which results shall be satisfactory to the Administrative  Agent,  together with
evidence  satisfactory to the  Administrative  Agent that the Liens disclosed by
such  search  results  are  permitted  by Section  8.2 or have been  released or
discharged  pursuant to the  Confirmation  Order,  and (vi) a certificate of the
Parent,  dated the Merger  Effective Date,  certifying that (x) as of the Merger
Effective  Date,  there  will  exist  no  Liens on the  Collateral  (other  than
Permitted  Liens)  and  (y)  Arch  has  designated  each  Non-Material   Foreign
Subsidiary  (including any Foreign  Subsidiary of Arch owned prior to the Merger
Effective  Date and which is not a  Subsidiary  Guarantor)  as an  "Unrestricted
Subsidiary" under and in accordance with each of the Arch Indentures,  copies of
which designations shall be attached to such certificate.

            (F)  Replacement  Schedules.  The  Administrative  Agent  shall have
received replacement Schedules 4.1, 8.1, 8.2 and 8.6 to this Agreement, Schedule
6(a) to the Parent Guaranty and Schedule 4(a) to the Arch Guaranty, each in form
and substance satisfactory to the Administrative Agent.

            (G) Joinder and Assumption Agreement. The Administrative Agent shall
have  received  the Joinder  and  Assumption  Agreement,  dated as of the Merger
Effective  Date,  duly executed by the Borrower,  PageNet,  the  Subsidiaries of
PageNet (other than any Non-Material Foreign Subsidiary of PageNet),  each agent
under the Existing PageNet Credit Agreement, the PageNet Letter of Credit Issuer
and each Existing  PageNet  Lender or the conditions set forth in Section 8.3(v)
shall have been satisfied.



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<PAGE>

            (H) Amended PageNet Collateral  Documents.  The Administrative Agent
shall  have  received  (i) an  amendment  and  restatement  of  each  of (A) the
guaranties  described in the definition of Existing PageNet Collateral Documents
(the "Amended PageNet  Guaranty"),  (B) the security  agreements (other than the
Intellectual  Property  Security  Agreement)  described  in  the  definition  of
Existing   PageNet   Collateral   Documents  (the  "Amended   PageNet   Security
Agreement"),  (C) Amended and Restated Company Pledge Agreement described in the
definition of Existing PageNet Collateral Documents (the "Amended PageNet Pledge
Agreement"),  and (D) the Intellectual  Property Security Agreement described in
the definition of Existing  PageNet  Collateral  Documents (the "Amended PageNet
Security  Agreement") and (ii) an unsecured guaranty,  made by the Parent to the
Agents under the Existing PageNet Credit Agreement, the Existing PageNet Lenders
and the PageNet Letter of Credit Issuer ( the "Parent Guaranty (PageNet"),  each
in form and  substance  satisfactory  to the  Managing  Agents,  dated as of the
Merger  Effective  Date and duly executed by PageNet,  each of its  Subsidiaries
party  thereto  and the Bank  Collateral  Agent or the  conditions  set forth in
Section 8.3(v) shall have been satisfied.

            (I) Cash Flows. (1) The Operating Cash Flow of PageNet for the three
month period  ending on the Merger  Effective  Date (or if the Merger  Effective
Date is not the last day of a month,  for the immediately  preceding three month
period) multiplied by 4 shall not be less than $225,000,000,  (2) the sum of (i)
Annualized  Operating Cash Flow of the Borrower plus (ii) Operating Cash Flow of
PageNet for the three month period  ending on the Merger  Effective  Date (or if
the Merger  Effective Date is not the last day of a month,  for the  immediately
preceding  three  month  period)   multiplied  by  4  shall  not  be  less  than
$485,000,000,  (3) the aggregate  number of Pagers in Service of (x) PageNet and
its  Subsidiaries  as of the  Merger  Effective  Date  shall  not be  less  than
7,250,000  and (y)  the  Borrower  and  its  Subsidiaries  and  PageNet  and its
Subsidiaries  on a combined  basis as of the Merger  Effective Date shall not be
less than  13,175,000,  and (4) the  Administrative  Agent shall have received a
certificate of a Financial  Officer of the Borrower  (including  calculations in
reasonable detail) to the foregoing effect in form and substance satisfactory to
the Managing Agents.

            (J) Corporate,  Tax, Capital and Ownership Structure. The corporate,
tax, capital and ownership  structure  (including  articles of incorporation and
by-laws),  shareholders  agreements  and  management  of the Parent,  Arch,  the
Borrower and its  Subsidiaries  before and after the consummation of the PageNet
Transactions  shall be satisfactory to the Managing Agents and the aggregate tax
liability reasonably expected to be incurred by PageNet and its Subsidiaries and
the Parent and its  Subsidiaries as a result of the PageNet  Transactions  shall
not exceed $15,000,000 in the aggregate and the Administrative  Agent shall have
received a certificate  of a Financial  Officer of the Borrower to the foregoing
effect in form and substance satisfactory to the Managing Agents.

            (K) Parent  Exchange  Offer.  The Parent  shall have  completed  the
Parent Exchange Offer on terms satisfactory to the Managing Agents, at least 50%
of the aggregate  principal  amount of the Parent Discount Notes shall have been
validly tendered and not withdrawn,  Parent Discount  Noteholder  Consents shall
have been received from Parent Discount  Noteholders holding at least 50% of the
aggregate  principal  amount of the Parent Discount  Notes,  the Parent Discount


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Note  Indenture   shall  either  have  been   terminated  or  amended  on  terms
satisfactory  to  Managing  Agents,  and the  Administrative  Agent  shall  have
received a  certificate  of a Financial  Officer of the Parent to the  foregoing
effects in form and substance satisfactory to the Managing Agents.

            (L) PageNet Exchange Offer.  Either (1) PageNet shall have completed
the PageNet  Exchange Offer on terms  satisfactory  to the Managing  Agents,  at
least 97.5% of the  aggregate  outstanding  principal  amount of PageNet  Senior
Subordinated  Notes and at least 50% of the aggregate  principal  amount of each
series of PageNet Senior Subordinated Notes shall have been validly tendered and
not  withdrawn,  PageNet  Noteholder  Consents shall have been received from the
PageNet   Noteholders  holding  at  least  such  percentages  of  the  aggregate
outstanding  principal amount of PageNet Senior  Subordinated Notes, the PageNet
Senior  Subordinated  Indentures shall have been either terminated or amended on
terms satisfactory to the Managing Agents,  and the  Administrative  Agent shall
have  received  a  certificate  of a  Financial  Officer  of the  Parent  to the
foregoing effects in form and substance  satisfactory to the Managing Agents, or
(2) the conditions set forth in Section 8.3(v) below shall have been satisfied.

            (M) Minimum Availability.  Immediately after the consummation of the
PageNet Transactions and the repayment in full of the DIP Facility, the Borrower
shall have  availability  under the Tranche A Commitments  in an amount not less
than the sum of $85,000,000 plus, without duplication, the amount of any fees or
expenses  incurred by the Parent or any of its  Subsidiaries  in connection with
the PageNet Transactions which are not paid on the Merger Effective Date.

            (N) Appraisal  Rights.  The percentage of shares of Stock of PageNet
with respect to which the holders  thereof shall have perfected  their appraisal
rights shall not exceed 5% of the outstanding shares of PageNet,  the holders of
which are entitled to appraisal rights, and the Administrative  Agent shall have
received  a  certificate  of a  Financial  Officer  of the  Parent,  in form and
substance  satisfactory to the Administrative Agent, as to the foregoing,  which
certificate shall specify the number of such shares.

            (O)  Absence  of  Litigation.  Other  than,  in  the  event  of  the
commencement  of the  Bankruptcy  Proceeding,  litigation  before the Bankruptcy
Court  which  litigation  is disposed  of  pursuant  to the  Confirmation  Order
(described in Section  8.3(v)(A)  below),  there shall be no  injunction,  writ,
preliminary  restraining  order  or  other  order of any  nature  issued  by any
Governmental  Body in any respect  affecting the  Transactions  and no action or
proceeding by or before any  Governmental  Body shall have been commenced and be
pending or, to the knowledge of the Parent, the Borrower or Arch, be threatened,
seeking  to  prevent  or delay the  Transactions  or  challenging  any terms and
provisions thereof or seeking any damages in connection therewith which would in
the reasonable  opinion of the Parent (or in the opinion of the Managing  Agents
in their sole  discretion with respect to which written notice has been provided
to the Parent by one or more of the  Managing  Agents),  individually  or in the
aggregate,  have a  material  adverse  effect  on (w)  the  business,  property,
financial condition, operations,  projections or prospects of the Parent and its
Subsidiaries  on  a  Consolidated   basis,   Arch  and  its  Subsidiaries  on  a


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Consolidated basis or PageNet and its Subsidiaries on a Consolidated  basis; (x)
the legality,  validity or enforceability  of any of the Transaction  Documents,
(y) the  ability  of the  Borrower  to  repay  its  obligations  under  the Loan
Documents or of any other Loan Party to perform its  obligations  under the Loan
Documents,  or (z) the rights and remedies of the Credit  Parties under the Loan
Documents,  and the Administrative  Agent shall have received a certificate of a
Financial  Officer of the Parent to the foregoing  effects in form and substance
satisfactory  to  the  Managing  Agents,   provided  that  to  the  extent  such
certificate  relates to PageNet,  such  certificate  shall be to the best of the
knowledge of such Financial Officer.

            (P) Absence of Defaults;  No Change of Control.  The consummation of
the Transactions shall not (i) constitute a default under any material agreement
of the  Parent,  PageNet or any of their  respective  Subsidiaries  (other  than
defaults  resulting  from  the  commencement  of the  Bankruptcy  Proceeding  or
defaults  nullified by the Plan of  Reorganization  or the Confirmation  Order),
(ii) require the prepayment,  repurchase,  redemption or defeasance  (other than
pursuant  to the  Exchange  Offers  or  requirements  nullified  by the  Plan of
Reorganization  or the  Confirmation  Order) of any  indebtedness of the Parent,
PageNet or any of their respective Subsidiaries prior to its scheduled maturity,
including, without limitation, under any change of control or similar provision,
or (iii) constitute a Change of Control, and the Administrative Agent shall have
received a  certificate  of a Financial  Officer of the Parent to the  foregoing
effects in form and substance satisfactory to the Managing Agents.

            (Q) No Default;  Representations and Warranties.  The Administrative
Agent shall have received a certificate of the President,  a Vice President or a
Financial  Officer  of the  Parent,  dated the  Merger  Effective  Date,  in all
respects  satisfactory  to the  Administrative  Agent  certifying that as of the
Merger  Effective  Date (A) no Default  exists and (B) the  representations  and
warranties  contained in the Loan Documents are true and correct,  except to the
extent such  representations  and warranties  specifically  relate to an earlier
date, in which case such representations and warranties shall have been true and
correct on and as of such earlier date.

            (R) Absence of Adverse Changes.

               (1) (a) Neither the Parent,  Arch,  the Borrower nor any of their
respective Subsidiaries shall have sustained since December 31, 1998 any loss or
interference with its respective business from fire,  explosion,  flood or other
calamity, whether or not covered by insurance or from any labor dispute or court
or governmental action order, or decree, (b) except for the Additional Tranche C
Loans (as defined in and made under the Existing  Tranche A and Tranche C Credit
Agreement) and the Arch 13 3/4% Notes, since such date there shall not have been
a material  increase in short-term  debt or long-term debt of the Parent,  Arch,
the  Borrower  or  any  of  their  respective   Subsidiaries  (other  than  debt
contemplated  by this  Agreement),  and (c) since such date there shall not have
been any change, or any development  involving a prospective  change, that could
in the reasonable  opinion of the Parent reasonably be expected to result (or in
the opinion of the  Managing  Agents in their sole  discretion  with  respect to
which  written  notice  has been  provided  to the  Parent by one or more of the
Managing  Agents be expected to result) in a material  adverse effect on (i) the


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business, property, financial condition, operations, projections or prospects of
the  Parent  and its  Subsidiaries  on a  Consolidated  basis  or  Arch  and its
Subsidiaries  on  a  Consolidated   basis;   (ii)  the  legality,   validity  or
enforceability  of any of the Loan Documents,  (iii) the ability of the Borrower
to repay its obligations  under the Loan Documents or of any other Loan Party to
perform  its  obligations  under  the Loan  Documents,  or (iv) the  rights  and
remedies of the Credit Parties under the Loan Documents.

               (2) (a) Except to the extent publicly  disclosed by PageNet prior
to the Third Restatement Date, neither PageNet nor any of its Subsidiaries shall
have  sustained  since  December 31,  1998,  any loss or  interference  with its
respective business from fire,  explosion,  flood or other calamity,  whether or
not  covered by  insurance  or from any labor  dispute or court or  governmental
action order,  or decree (other than,  in the event of the  commencement  of the
Bankruptcy  Proceeding,  litigation before the Bankruptcy Court which litigation
is  disposed  of  pursuant  to the  Confirmation  Order  (described  in  Section
8.3(v)(A) below) other than as set forth in its audited financial  statements as
of that date,  (b) since such date,  except for  borrowings  under the  Existing
PageNet Credit Agreement and borrowings under the DIP Facility,  there shall not
have been a material increase in short-term debt or long-term debt of PageNet or
any of its  Subsidiaries  (other than, in the event of the  commencement  of the
Bankruptcy Proceeding,  pursuant to the DIP Loan Documents,  as permitted in the
PageNet Merger  Documents),  and (c) except to the extent publicly  disclosed by
PageNet  prior to the Third  Restatement  Date,  since such date there shall not
have been any change, or any development  involving a prospective  change (other
than  the  commencement  of  the  Bankruptcy  Proceeding),  that  could  in  the
reasonable  opinion of the Parent  reasonably  be  expected to result (or in the
opinion of the Managing  Agents in their sole  discretion  with respect to which
written  notice has been  provided to the Parent by one or more of the  Managing
Agents be expected to result) in a material  adverse effect on (i) the business,
property, financial condition,  operations,  projections or prospects of PageNet
and its  Subsidiaries on a Consolidated  basis;  (ii) the legality,  validity or
enforceability  of any of the Loan Documents,  (iii) the ability of the Borrower
to repay its obligations  under the Loan Documents or of any other Loan Party to
perform  its  obligations  under  the Loan  Documents,  or (iv) the  rights  and
remedies of the Credit Parties under the Loan Documents.

               (3) The Administrative Agent shall have received a certificate of
a  Financial  Officer of the Parent,  dated the Merger  Effective  date,  in all
respects  satisfactory to the Managing Agents  certifying to clauses (1) and (2)
above,  provided,  that with respect to clause (2), such certificate shall be to
the  best  of the  knowledge  of  such  Financial  Officer.  The  filing  of the
Bankruptcy  Proceeding  shall not, in and of itself,  be deemed to be a material
adverse change with respect to PageNet and its Subsidiaries.

            (S)  Financial  Projections.  The  Administrative  Agent  shall have
received  financial  projections  of (1) the  Parent and its  Subsidiaries  on a
Consolidated  basis, (2) Arch and its Subsidiaries on a Consolidated  basis, (3)
the Borrower and its  Subsidiaries on a Consolidated  basis, and (4) PageNet and
its  Subsidiaries  on a Consolidated  basis, in each case for the period through
the Tranche C Maturity  Date,  each in form and  substance  satisfactory  to the
Managing Agents.



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<PAGE>

            (T) FCC  Order.  The  Administrative  Agent  shall  have  received a
certified  copy of a Final Order of the FCC approving the transfer of control of
such of PageNet and its  Subsidiaries  which hold FCC  licenses to the Parent or
any of its Subsidiaries.

            (U)  Consents   under   PageNet   Canadian   Loan   Documents.   The
Administrative Agent shall have received, in form and substance  satisfactory to
the Managing Agents,  such  amendments,  waivers or consents to the Transactions
from the lenders under the PageNet Canadian Loan Documents,  including,  without
limitation,  amendments to limit the collateral  thereunder to the assets of the
PageNet Canadian  Subsidiaries  existing on the Merger Effective Date in which a
Lien was granted prior to such date, as the Managing Agents shall require.

            (V)  Approvals  and  Consents.  All  approvals  and  consents of all
Persons required to be obtained prior to the Merger Effective Date in connection
with the  consummation  of the PageNet  Transactions  shall have been  obtained,
including,  without limitation, all required approvals of any state Governmental
Body,  and all required  notices shall have been given and all required  waiting
periods shall have expired, including, without limitation, under the HSR Act (or
expiration of applicable  waiting  periods),  and no provision of any applicable
statute,  law,  rule or  regulation  of any  Governmental  Body will prevent the
execution,  delivery or  performance  of, or affect the validity of, the PageNet
Transaction  Documents  and the  Administrative  Agent  shall  have  received  a
certificate of an officer of the Parent to the foregoing effects.

            (W) Stockholder  Approval.  (a) The stockholders of the Parent shall
have  approved  the PageNet  Transactions,  (b) either (i) the  stockholders  of
PageNet shall have approved the PageNet Transactions, or (ii) the conditions set
forth in Section 8.3(v) shall have been  satisfied,  and (c) the  Administrative
Agent shall have received a certificate of the Secretary or Assistant  Secretary
of the Parent to the foregoing effects.

            (X) Existing PageNet Lender Approval. Either (i) all of the Existing
PageNet  Lenders  shall  have  consented  to the  consummation  of  the  PageNet
Transactions and the  Administrative  Agent shall have received a Certificate of
the Secretary or Assistant  Secretary of the Parent to the  foregoing  effect or
(ii) the conditions set forth in Section 8.3(v) shall have been satisfied.

            (Y)  Rights  Plan.  PageNet's  shareholders'  rights  plan  shall be
inapplicable to the PageNet  Transactions,  and the  Administrative  Agent shall
have  received  a  certificate  of a  Financial  Officer  of the  Parent  to the
foregoing effects in form and substance satisfactory to the Managing Agents.

            (Z) Consummation of PageNet Transactions.

               (1) Each of the  conditions  precedent  contained  in the PageNet
Transaction Documents to the consummation of the PageNet Transactions shall have
been  satisfied  (with no  waiver of any  condition  thereof  without  the prior
written consent of the Managing  Agents),  and the PageNet  Transactions  (other
than the Dropdown)  shall have been  consummated in accordance with the terms of


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the  PageNet  Transaction  Documents  (with no  amendment,  supplement  or other
modification  to any term or  provision  contained  therein  without  the  prior
written consent of the Required Lenders (other than any amendment, supplement or
other modification to any nonmaterial term or provision contained therein or any
amendment, supplement or other modification which is not adverse to the Lenders,
in each case with the prior  written  consent of the  Managing  Agents)) and all
applicable laws, governmental policies, rules and regulations.

               (2)  All  representations  and  warranties  made  in the  PageNet
Transaction  Documents by the Parent,  Merger Sub and PageNet  shall be true and
correct in all material respects.

               (3) The Administrative Agent shall have received a certificate of
the Secretary or Assistant Secretary of the Parent, in all respects satisfactory
to the  Administrative  Agent, (a) attaching a true and complete copy of each of
the fully executed PageNet Merger Documents,  all of which shall be satisfactory
to the Managing Agents, and (b) certifying that (i) each PageNet Merger Document
is in full force and  effect,  (ii) no default or event of default by the Parent
or the Borrower or, to the best of the knowledge of the Parent and the Borrower,
any other party,  has occurred and is continuing  thereunder,  and (iii) each of
the conditions  specified in clauses (1) and (2) of this subsection (Z) has been
satisfied,  provided,  however,  that with  respect to the  representations  and
warranties  made in the PageNet  Transaction  Documents by PageNet or any of its
Subsidiaries,  such  certification  shall be made to the best  knowledge  of the
Parent.

               (4) The PageNet  Merger  shall occur on or before  September  30,
2000.

               (5) The PageNet Merger Certificate shall have been filed with the
Secretary of State of the State of Delaware,  which  certificate shall comply as
to form and  substance  with the General  Corporation  Law of Delaware,  and the
Administrative Agent shall have received a certified copy thereof.

               (6) With respect to each  PageNet  Subsidiary  Merger,  if any, a
PageNet  Subsidiary Merger Certificate shall have been filed with the applicable
Governmental  Body,  each of which shall  comply as to form and  substance  with
applicable  state  law,  and the  Administrative  Agent  shall  have  received a
certified copy thereof.

            (AA) Compliance  Certificate.  The  Administrative  Agent shall have
received a Compliance Certificate signed by a Financial Officer of the Borrower,
in all respects reasonably  satisfactory to the Administrative  Agent, dated the
Merger  Effective  Date, and (i) stating that the Borrower is in compliance with
all covenants on a pro-forma basis after giving effect to the Transactions,  and
(ii) attaching a copy of a pro-forma  Consolidated balance sheet of the Borrower
utilized for purposes of preparing such Compliance Certificate,  which pro-forma
Consolidated  balance sheet presents the  Borrower's  good faith estimate of its
pro-forma  Consolidated  financial  condition at the date thereof,  after giving
effect to the Transactions.



                                       96
<PAGE>

            (BB) Due Diligence.  The Lenders' due diligence  investigations with
respect to the Parent,  Arch,  the Borrower and their  respective  Subsidiaries,
PageNet and its Subsidiaries and the PageNet  Transactions shall be satisfactory
in all respects to Required Lenders.

            (CC) Spin-Off. The Spin-Off shall have occurred.


            (DD)  Opinions of Counsel to the Loan  Parties.  The  Administrative
Agent shall have received opinions  (including  opinions as to the tax treatment
of the Merger) of Hale and Dorr,  counsel to the Loan Parties,  addressed to the
Administrative  Agent and the other Credit Parties,  dated the Merger  Effective
Date and in form and substance satisfactory to the Administrative Agent.

            (EE) Opinions of FCC Counsel.  The  Administrative  Agent shall have
received an opinion of Wilkinson,  Barker,  Knauer & Quinn,  LLP, FCC counsel to
Arch and its Subsidiaries,  addressed to the Administrative  Agent and the other
Credit  Parties,  dated  the  Merger  Effective  Date and in form and  substance
satisfactory to the Administrative Agent.

            (FF) Opinions of Foreign  Counsel.  In the event that any Stock of a
Foreign  Subsidiary of Arch is pledged as collateral  pursuant to the Collateral
Documents or any Material Foreign Subsidiary  becomes a Subsidiary  Guarantor on
the Merger Effective Date, the Administrative Agent shall have received opinions
of foreign  counsel to Arch and its  Subsidiaries  reasonably  acceptable to the
Administrative Agent, addressed to the Administrative Agent and the other Credit
Parties,  dated the Merger Effective Date and in form and substance satisfactory
to the Administrative Agent.

            (GG) Fees and Expenses.  All fees and expenses payable to the Agents
and the Lenders on the Merger Effective Date shall have been paid, including the
reasonable fees and expenses of Special Counsel.

            (HH) Other Documents.  The Administrative  Agent shall have received
such other documents and assurances as the Administrative Agent shall reasonably
require.

         (v) In the event that the  Bankruptcy  Proceeding is commenced,  Merger
Sub may  consummate  the  PageNet  Merger  subject to the prior or  simultaneous
satisfaction of the following additional conditions precedent:

            (A) Plan of Reorganization. PageNet shall have submitted the Plan of
Reorganization,  which  shall be  acceptable  in all  respects  to the  Managing
Agents, to the Bankruptcy Court.

            (B) Repayment of the DIP Facility.  The DIP Facility shall have been
repaid in full (with not more than $15,000,000  (less any amount invested by the
Parent or any of its Subsidiaries in the PageNet Canadian  Subsidiaries)  having
been paid by the Borrower with the proceeds of Tranche A Loans) and all Liens in


                                       97
<PAGE>

respect thereof shall have been terminated,  and the Administrative  Agent shall
have  received  evidence,  in form and  substance  satisfactory  to the Managing
Agents, to such effect.

            (C) Confirmation Order. The Administrative Agent shall have received
a court certified copy of the Confirmation Order, which Confirmation Order shall
be a Final Order and shall be satisfactory to the Managing Agents

   Section 8.4 Contingent Obligations.

      Assume, guarantee,  indorse, contingently agree to purchase or perform, or
otherwise  become  liable upon any  Contingent  Obligation  or permit any of its
Subsidiaries so to do, except:

      (a) Prior to the Existing Arch Senior Note Termination  Date. Prior to the
Existing Arch Senior Note Termination Date, Contingent  Obligations of Arch, the
Borrower or any Subsidiary of the Borrower (other than Benbow  Investments until
such time as Benbow  Investments  ceases to be an Unrestricted  Subsidiary under
and as defined in the Arch Indentures, has become a Subsidiary Guarantor and has
granted a security  interest to the Collateral  Agents in its assets pursuant to
Section  7.18(c))  incurred to, or for the benefit of, Arch, the Borrower or any
of its  Subsidiaries  (other than Benbow  Investments  until such time as Benbow
Investments ceases to be an Unrestricted  Subsidiary under and as defined in the
Arch  Indentures,  has become a Subsidiary  Guarantor and has granted a security
interest to the Collateral Agents in its assets pursuant to Section 7.18(c)).

      (b) On and After the Existing  Arch Senior Note  Termination  Date. On and
after the  Existing  Arch  Senior  Note  Termination  Date,  (i) the  Contingent
Obligations of Arch and the Subsidiary Guarantors under the Collateral Documents
and (ii) guarantees by the Borrower of Indebtedness of any Subsidiary  Guarantor
or by any  Subsidiary  Guarantor  of  Indebtedness  of the Borrower or any other
Subsidiary  Guarantor,  provided  that such  Indebtedness  would be permitted by
Section 8.1 if directly incurred.

   Section 8.5 Restricted Payments.

      Declare or make any Restricted  Payment, or permit any of its Subsidiaries
so to do, except as follows:

      (a) Prior to the Existing Arch Senior Note Termination  Date. Prior to the
Existing  Arch Senior Note  Termination  Date,  whether or not any of the Parent
Discount Notes are outstanding or the Existing Discount  Indenture is in effect,
the following Restricted Payments shall be permitted:

         (i) any Subsidiary of Arch may, directly or indirectly, make Restricted
Payments to Arch,  the  Borrower or any of its  Subsidiaries  (other than Benbow
Investments until such time as Benbow  Investments  ceases to be an Unrestricted
Subsidiary under and as defined in the Arch Indentures,  has become a Subsidiary
Guarantor and has granted a security  interest to the  Collateral  Agents in its
assets pursuant to Section 7.18(c));



                                       98
<PAGE>

         (ii) Arch and its  Subsidiaries  may make  Restricted  Payments  to the
Parent for purposes of enabling the Parent, as a Consolidated  taxpayer,  to pay
Taxes pursuant to the terms set forth in the Tax Sharing Agreement;

         (iii) the Borrower and its Subsidiaries may pay Management Fees to Arch
in any fiscal  quarter (in an aggregate  amount not  exceeding 1 1/2% of the net
revenue of Arch and its Subsidiaries  for the immediately  preceding four fiscal
quarters  ending  with the  latest  fiscal  quarter  for which  Arch has filed a
quarterly  report  with the SEC on form 10Q or an annual  report on form 10K) in
accordance  with the terms set forth in the  Management  Agreement  for services
rendered  to the  Borrower  or any of its  Subsidiaries,  provided  that  (i) no
Default or Event of Default has occurred or is continuing  (provided that during
the  continuance of a Default or an Event of Default,  the Management Fee may be
accrued, but not paid) and (ii) any such Management Fee accrued or paid shall be
treated as an operating  expense and deducted from the  calculation of Operating
Cash Flow of the Borrower; and

         (iv)  provided  that no Default or Event of  Default  shall  exist both
before  and after  giving  effect  thereto,  after the  Borrower  has  delivered
financial statements pursuant to Section 7.1(a) or (b) that demonstrate that the
Total Leverage Ratio has been less than 3.00:1:00 for the immediately  preceding
two  consecutive  fiscal  quarters,  and provided that the Total  Leverage Ratio
would be less than 3.00:1.00 after giving effect thereto,  (A) Arch may make any
Restricted  Payments to the Parent,  and (B) the Parent may make any  Restricted
Payments to its shareholders.

      (b) On and After the Existing  Arch Senior Note  Termination  Date. On and
after the Existing Arch Senior Note Termination Date,  whether or not any of the
Parent Discount Notes are outstanding or the Existing  Discount  Indenture is in
effect, the following Restricted Payments shall be permitted:

         (i) any Subsidiary of the Borrower may make a Restricted Payment to its
parent;

         (ii)  provided  that no Default or Event of  Default  shall  exist both
before  and  after  giving  effect  thereto,  a  Subsidiary  of Arch  may make a
Restricted  Payment  (other than  Management  Fees or any payment  under the Tax
Sharing  Agreement or the  Management  Agreement)  to Arch (A) on a day on which
Arch is obligated to make a payment in respect of Required  Obligations  so long
as the amount  thereof  does not exceed  the amount of the  Required  Obligation
payable on such  date,  and (B) for any other  purpose  so long as after  giving
effect thereto, the API Leverage Ratio does not exceed 2.00:1.00;

         (iii) Arch and its  Subsidiaries  may make  Restricted  Payments to the
Parent for purposes of enabling the Parent, as a Consolidated  taxpayer,  to pay
Taxes pursuant to the terms set forth in the Tax Sharing Agreement;

         (iv) the Borrower and its  Subsidiaries may pay Management Fees to Arch
in any fiscal  quarter (in an aggregate  amount not  exceeding 1 1/2% of the net
revenue of Arch and its Subsidiaries  for the immediately  preceding four fiscal
quarters  ending  with the  latest  fiscal  quarter  for which  Arch has filed a


                                       99
<PAGE>

quarterly  report  with the SEC on form 10Q or an annual  report on form 10K) in
accordance  with the terms set forth in the  Management  Agreement  for services
rendered  to the  Borrower  or any of its  Subsidiaries,  provided  that  (i) no
Default or Event of Default has occurred or is continuing  (provided that during
the  continuance of a Default or an Event of Default,  the Management Fee may be
accrued, but not paid) and (ii) any such Management Fee accrued or paid shall be
treated as an operating  expense and deducted from the  calculation of Operating
Cash Flow of the Borrower; and

         (v)  provided  that no  Default or Event of  Default  shall  exist both
before  and after  giving  effect  thereto,  after the  Borrower  has  delivered
financial statements pursuant to Section 7.1(a) or (b) that demonstrate that the
Total Leverage Ratio has been less than 3.00:1:00 for the immediately  preceding
two  consecutive  fiscal  quarters,  and provided that the Total  Leverage Ratio
would be less than 3.00:1.00 after giving effect thereto,  (A) Arch may make any
Restricted  Payments to the Parent,  and (B) the Parent may make any  Restricted
Payments to its shareholders.

         (vi) Additional  Restricted  Payments to the Parent.  So long as any of
the Parent Discount Notes are outstanding or the Existing Discount  Indenture is
in effect,  and provided that immediately  before or after giving effect to such
declaration  and payment no Default or Event of Default shall exist, in addition
to any  payments  permitted  under  clauses  (a) and (b)  above,  Arch  may make
Restricted  Payments  to the Parent (A) on any day in an amount not in excess of
the amount of interest due and payable on the Parent Discount Notes on such day,
(B) to enable  the  Parent  to  repurchase  shares of its Stock in an  aggregate
amount not exceeding  $1,000,000  minus amounts  expended for such purpose on or
after  March  12,  1996 and (C) to  enable  the  Parent  to make  payments  (not
exceeding  $189,282 in any fiscal year) when due under the Consulting  Agreement
constituting  a  part  of  the  Page  Call  Purchase   Documents.

   Section 8.6 Investments, Loans, Acquisitions, Etc.

      At any time,  purchase or otherwise  acquire,  hold or invest in the Stock
of, or any other  interest  in, any  Person,  or make any loan or advance to, or
enter into any  arrangement  for the purpose of providing funds or credit to, or
make any other investment,  whether by way of capital contribution or otherwise,
in or with any Person including an Acquisition,  or make any payments in respect
of the ACE  Subordinated  Note, or permit any of its Subsidiaries so to do, (all
of which are sometimes referred to herein as "Investments") except:

      (a)  Investments  in short-term  domestic and eurodollar  certificates  of
deposit issued by any Lender,  or any other  commercial  bank,  trust company or
national banking association incorporated under the laws of the United States or
any State thereof and having  undivided  capital  surplus and retained  earnings
exceeding $500,000,000;

      (b) Investments in short-term  direct  obligations of the United States of
America or agencies  thereof  which  obligations  are  guaranteed  by the United
States of America;

      (c)  Investments  existing on the Third  Restatement  Date as set forth in
Schedule 8.6;



                                      100
<PAGE>

      (d) normal  business  banking  accounts  and  short-term  certificates  of
deposit and time deposits in, or issued by, federally insured institutions;

      (e)  commercial  paper maturing not in excess of 270 days from the date of
acquisition  and rated P-1 by  Moody's  or A1 by S&P on the date of  acquisition
thereof;

      (f) Indebtedness  (which  Indebtedness shall not have a maturity in excess
of one  year)  which  is  rated A or  better  by  Moody's  or S&P on the date of
acquisition thereof;

      (g) prior to the  Existing  Arch Senior Note  Termination  Date,  loans or
advances by the Borrower or any of its Subsidiaries to Arch, the Borrower or any
of its  Subsidiaries  (other than Benbow  Investments  until such time as Benbow
Investments ceases to be an Unrestricted  Subsidiary under and as defined in the
Arch  Indentures,  has become a Subsidiary  Guarantor and has granted a security
interest to the Collateral Agents in its assets pursuant to Section 7.18(c));

      (h) Acquisitions of Persons in the wireless messaging industry made by the
Borrower or any of its Subsidiaries, provided that:

         (i) the Acquisition  Consideration of each such  Acquisition  shall not
exceed  $25,000,000  individually  or  $50,000,000 in the aggregate for all such
Acquisitions made in any 24 month period,

         (ii)   immediately   before  and  after  giving  effect  to  each  such
Acquisition,  (A) no  Default  or Event of Default  shall  exist,  (B) the Total
Leverage  Ratio  shall  be less  than or  equal  to  4.75:1.00,  and (C) the API
Leverage Ratio shall be less than or equal to 2.50:1.00,

         (iii) the  representations and warranties set forth in Section 4 (other
than  Section  4.1  to the  extent  that  Schedule  4.1  does  not  reflect  the
Acquisition in question) are true and correct, and

         (iv) the  Administrative  Agent  shall have  received  with  sufficient
copies for each Lender (A) ten Business Days' prior written notice thereof,  (B)
a certificate of a Financial Officer of the Borrower as to the matters set forth
in clauses (i) through (iii) above, (C) unaudited Consolidated pro-forma balance
sheets and the Consolidated  pro-forma results of operations of the Borrower and
its Subsidiaries  presenting the pro-forma  Consolidated  financial condition of
the Borrower and its Subsidiaries and the pro-forma  Consolidated  statements of
operations of the Borrower and its  Subsidiaries  through the Tranche C Maturity
Date,  (D) a Compliance  Certificate  on a pro forma basis giving effect to such
Acquisition,  (E) such other documents as may be requested by the Administrative
Agent or its counsel in order for the Bank  Collateral  Agent or the  Collateral
Agents to obtain a perfected first priority security interest in the Property or
Stock so acquired under the Collateral  Documents  solely to the extent that (x)
such  Collateral  Documents are then  effective and (y) a security  interest has
been  granted by the Person  making the  Acquisition  in the type of Property or
Stock  being  acquired,  and (F) such  other  information  or  documents  as the
Administrative Agent shall have reasonably requested;

         (i) Investments consisting of the Intercompany Notes;



                                      101
<PAGE>

         (j)  Investments  by  the  Borrower  or  any  Subsidiary  Guarantor  in
Intercompany  Subordinated Debt,  provided,  however,  that (A) any such loan is
evidenced by a subordinated  promissory note in form and substance  satisfactory
to the  Administrative  Agent which is delivered to the Appropriate  Party under
the applicable Collateral Document, and (B) no Default or Event of Default would
exist before or after giving effect thereto;

         (k) Investments by the Borrower in Benbow Investments consisting solely
of the ACE Subordinated Note;

         (l) Additional Benbow Investments, provided that:

            (i) immediately before or after giving effect to any such Additional
Benbow Investment, no Default or Event of Default shall exist,

            (ii) prior to the Existing Arch Senior Note  Termination  Date,  the
amount of such Additional Benbow  Investments  (exclusive of Parent common Stock
contributed to Benbow  Investments and advanced by Benbow  Investments to Benbow
to enable  Benbow  to  satisfy  its  obligations  under  the Page Call  Purchase
Agreement  or to  satisfy  the  Parent's  guaranty  thereof)  shall  not  exceed
$10,000,000  in the  aggregate  in any  one  fiscal  year  of the  Borrower  and
$25,000,000 in the aggregate for all such  Additional  Benbow  Investments,  and
provided further that the amount of such Additional Benbow Investments shall not
exceed  the  amount  required  to be paid by Benbow  Investments  to June  Walsh
pursuant  to the  Benbow  Purchase  Agreement  plus the  amount  required  to be
advanced by Benbow  Investments  to Benbow to enable  Benbow to make payments to
Lisa-Gaye Shearing under the Page Call Purchase Documents; and

            (iii) on and after the Existing Arch Senior Note  Termination  Date,
Additional  Benbow  Investments  may be made so long as before and after  giving
effect  thereto  the API  Leverage  Ratio is less  than or  equal to  2:00:1.00,
provided that the amount of such Additional Benbow  Investments shall not exceed
the amount  required to be paid by Benbow  Investments to June Walsh pursuant to
the Benbow Purchase  Agreement plus the amount required to be advanced by Benbow
Investments  to Benbow to enable Benbow to make  payments to Lisa-Gaye  Shearing
under the Page Call Purchase Documents;

         (m) payments by the Borrower in respect of the ACE  Subordinated  Note,
provided  that (i) no Default or Event of Default  would exist and be continuing
immediately before and after giving effect thereto,  (ii) the amount of any such
payment shall not exceed the amount of Additional Benbow  Investments  permitted
to be made to Benbow pursuant to the provisions of Section 8.6(l) as of the date
such payment is made,  and (iii) the proceeds of any such payment  shall be used
promptly and solely as an Additional Benbow Investment;

         (n) other Investments, provided that (i) no Default or Event of Default
shall exist both before and after giving effect thereto, (ii) the Borrower shall
have  delivered  financial  statements  pursuant  to Section  7.1(a) or (b) that
demonstrate  that the Total  Leverage Ratio has been less than 3.00:1:00 for the
immediately  preceding  two  consecutive  fiscal  quarters,  and (iii) the Total
Leverage Ratio would be less than 3.00:1.00 after giving effect thereto; and



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<PAGE>

         (o) the PageNet Transactions to the extent permitted by Section 8.3(iv)
and (v).

    Section 8.7 Business and Name Changes.

      Materially  change the nature of its  business as  conducted  on the Third
Restatement Date, or, without giving the Administrative Agent thirty days' prior
written  notice,  change its name or  jurisdiction of organization or permit any
Subsidiary to do any of the foregoing .

   Section 8.8 Sale of Property.

      Sell,  exchange,  lease,  transfer,  assign or  otherwise  dispose  of any
Property to any Person, or permit any of its Subsidiaries so to do, except:

      (a) sales or  dispositions of Property in the ordinary course of business,
including normal retirements and replacements of Property in the ordinary course
of business;

      (b) prior to the  Existing  Arch Senior Note  Termination  Date,  sales or
other  dispositions of Property  between Arch, the Borrower or any Subsidiary of
Arch; and

      (c) sales or other  dispositions of Property by the Borrower or any of its
Subsidiaries  (each, a "Disposition")  not otherwise  described in this Section,
provided that:

         (i) the  Borrower  shall  give  the  Administrative  Agent  at least 10
Business Days' prior written  notice of each such  Disposition  identifying  the
Property to be sold and the total consideration to be paid in respect thereof,

         (ii) no Default or Event of Default shall exist  immediately  before or
after giving effect thereto,

         (iii) the  consideration  received or to be received by the Borrower or
any of its  Subsidiaries  shall be payable at least 85% in cash on or before the
closing of such  Disposition and shall not be less than the fair market value of
the Property so sold,  as reasonably  determined  by the Managing  Person of the
Borrower or such Subsidiary, and

         (iv) each such  Disposition  made pursuant to this Section 8.8(c) shall
not exceed  $25,000,000  individually  or $50,000,000 in the aggregate in any 24
month period.

   Section 8.9 Subsidiaries.

      Create or acquire any Subsidiary,  or permit any of its Subsidiaries so to
do, except (i) as otherwise  provided pursuant to and in accordance with Section
7.18, 7.19 or 8.6 and (ii) with the consent of Required Lenders, the Borrower or
any of its Subsidiaries may create an  unconsolidated  Subsidiary not subject to
the provisions contained in Articles 7 and 8.



                                      103
<PAGE>

   Section 8.10 Organizational Documents.

      Amend or otherwise  modify its  Organizational  Documents in any way which
would  adversely  affect  the  interests  of the  Lenders  under any of the Loan
Documents or the obligations the Borrower or any of its  Subsidiaries  under any
of the Loan Documents, or permit any of its Subsidiaries so to do.

   Section 8.11 Prepayments of Indebtedness.

      Prepay or obligate  itself to prepay,  in whole or in part, or voluntarily
redeem or  otherwise  retire  prior to the maturity  thereof,  any  Indebtedness
(other  than  Indebtedness  under  the  Loan  Documents,  or  permit  any of its
Subsidiaries  so to do, except (i)  prepayment of the Arch Senior Notes with the
proceeds of any  Replacement  Notes,  and (ii) prior to the Existing Arch Senior
Note  Termination  Date,  Indebtedness  owed  by  the  Borrower  or  any  of its
Subsidiaries to Arch or any of its other Subsidiaries.

   Section 8.12 Sale and Leaseback.

      Enter into any arrangement with any Person providing for the leasing by it
of Property  which has been or is to be sold or transferred by it to such Person
or to any other  Person to whom  funds have been or are to be  advanced  by such
Person on the security of such Property or its rental obligations, or permit any
of its  Subsidiaries  so to do,  except  that  (i)  the  Borrower  or any of its
Subsidiaries  may lease any  transmitting  tower site which was the subject of a
Disposition,  and (ii) prior to the Existing Arch Senior Note Termination  Date,
the  Borrower  or any of its  Subsidiaries  may  enter  into any  such  sale and
leaseback transaction with Arch or any of its other Subsidiaries.

   Section 8.13 Issuance of Stock.

      Issue any  additional  Stock or other  equity or  ownership  interest,  or
permit any of its  Subsidiaries so to do, except that the Borrower or any of its
Subsidiaries may issue additional  common Stock to its immediate parent provided
that  simultaneously  therewith such Stock shall be delivered to the Appropriate
Party, with appropriate stock powers.

   Section 8.14 Fiscal Year.

      Change its fiscal year from that in effect on the Third  Restatement  Date
or permit any of its Subsidiaries so to do.

   Section 8.15 Amendments, Etc. of Certain Agreements.

      Except as contemplated  by the Parent Exchange Offer,  enter into or agree
to any amendment,  modification or waiver of any term or condition of any of the
Intercompany Notes, the Management Agreement, any Non-Competition Agreement, the
Parent Subordinated Indenture,  the Parent Subordinated  Debentures,  the Parent
Discount Notes Indenture,  the Parent Discount Notes, the Arch Senior Notes, the
Arch Indentures, the PageNet Canadian Loan Documents, the Tax Sharing Agreement,


                                      104
<PAGE>

the Subordination  Agreement or the Benbow Purchase  Agreement,  in each case in
any  way  which  could  adversely   affect  either  (i)  the  interests  of  the
Administrative  Agent and the Lenders under the Loan  Documents or (ii) any Loan
Party's ability to perform its obligations under the Loan Documents.

   Section 8.16 Transactions with Affiliates.

      Become a party to any  transaction  with an Affiliate or permit any of its
Subsidiaries so to do, unless its Managing Person shall have determined that the
terms and  conditions  relating to such  transaction  are as  favorable to it as
those  which  would  be  obtainable  at that  time in a  comparable  arms-length
transaction with a Person other than an Affiliate.

   Section 8.17 ERISA.

      Adopt or become obligated to contribute to any Plan or Multiemployer Plan,
or permit any of its Subsidiaries or Commonly Controlled Entity so to do.

   Section 8.18 Capital Expenditures.

      During the period on and after the Merger Effective Date, make any Capital
Expenditures (or incur any obligation to make any Capital Expenditure) or permit
any of its  Subsidiaries  to make any  Capital  Expenditures  (or incur any such
obligation),  in any  fiscal  quarter  set  forth in the  following  table in an
aggregate  amount in  excess  of the  amount  set  forth  below for such  fiscal
quarter:

     ============================================= =====================
                Fiscal Quarter Ending                     Amount
     --------------------------------------------- ---------------------
                 September 30, 2000                     $75,000,000
     --------------------------------------------- ---------------------
                 December 31, 2000                      $75,000,000
     --------------------------------------------- ---------------------
                   March 31, 2001                       $70,000,000
     ============================================= =====================

Capital  Expenditures  shall be  calculated  on a  non-cumulative  basis so that
amounts  not  used in a fiscal  quarter  may not be  carried  over and used in a
subsequent fiscal quarter.

ARTICLE 9. DEFAULT


   Section 9.1 Events of Default.

      The following shall each constitute an "Event of Default" hereunder:

      (a) The failure of the  Borrower to pay (i) any  principal  on any Note or
(ii) any Reimbursement Obligation on the date when due and payable; or

      (b) The failure of the  Borrower to pay any  interest or any other fees or
expenses  payable  under any Loan  Document or otherwise  to the  Administrative
Agent with respect to the loan  facilities  established  hereunder  within three
Business Days of the date when due and payable; or



                                      105
<PAGE>

      (c) The use of the proceeds of any Loan in a manner  inconsistent  with or
in violation of Section 2.7; or

      (d) The  failure of any Loan Party to observe or perform  any  covenant or
agreement  contained in Section 7.2(f), 7.3, 7.11, 7.12, 7.13, 7.14, 7.15, 7.16,
7.17,  7.18,  7.19 or  7.20,  Article  8 of  this  Agreement,  Section  2 of the
Subsidiary Guaranty,  Section 2, 8(c), 8(k), 8(l), 8(m), 8(n) or 9 of the Parent
Guaranty or Section 2, 5(c), 5(k), 5(l), 5(m) or 6 of the Arch Guaranty; or

      (e) The  failure of any Loan Party to observe or perform  any other  term,
covenant,  or agreement  contained in any Loan  Document and such failure  shall
have  continued  unremedied for a period of 30 days from the first date when the
Parent, Arch or the Borrower shall have obtained knowledge thereof; or

      (f) Any representation or warranty of any Loan Party (or of any officer of
the  Borrower  or  Arch  on its  behalf)  made in any  Loan  Document  or in any
certificate,  report,  opinion  (other  than an  opinion  of  counsel)  or other
document delivered or to be delivered pursuant to this Agreement, shall prove to
have been incorrect or misleading  (whether because of misstatement or omission)
in any material respect when made; or

      (g) Any obligation of the Parent or any of its  Subsidiaries  (other than,
prior to the date on which Benbow  Investments  becomes a Subsidiary  Guarantor,
Benbow Investments),  whether as principal,  guarantor, surety or other obligor,
for the payment of any  Indebtedness or operating  leases in an aggregate amount
greater  than  $10,000,000  (i) shall  become or shall be declared to be due and
payable prior to the expressed maturity thereof,  or (ii) shall not be paid when
due or within any grace period for the payment  thereof,  or (iii) the holder of
any such  obligation  shall have the right to declare  such  obligation  due and
payable  prior  to the  expressed  maturity  thereof,  including  in the case of
clauses  (i) and  (iii),  as a result of any  mandatory  redemption  of the Arch
Senior Notes; or

      (h) the Parent or any of its Subsidiaries shall (i) suspend or discontinue
its business, or (ii) make an assignment for the benefit of creditors,  or (iii)
generally  not be paying its debts as such debts  become  due,  or (iv) admit in
writing  its  inability  to pay its  debts  as they  become  due,  or (v) file a
voluntary  petition  in  bankruptcy,  or (vi)  become  insolvent  (however  such
insolvency shall be evidenced), or (vii) file any petition or answer seeking for
itself  any  reorganization,  arrangement,  composition,  readjustment  of debt,
liquidation  or  dissolution  or  similar  relief  under any  present  or future
statute,  law or regulation of any jurisdiction,  or (viii) petition or apply to
any tribunal for any receiver, custodian or any trustee for any substantial part
of its  Property,  or (ix) be the  subject of any such  petition  or  proceeding
referred to above filed against it which remains  undismissed for a period of 60
days,  or  (x)  file  any  answer  admitting  or  not  contesting  the  material
allegations  of any such  petition  filed  against it or any order,  judgment or
decree  approving such petition in any such proceeding,  or (xi) seek,  approve,
consent to, or acquiesce in any such  proceeding,  or in the  appointment of any
trustee,  receiver,  custodian,  liquidator,  or  fiscal  agent  for it,  or any
substantial  part of its Property,  or an order is entered  appointing  any such
trustee, receiver, custodian,  liquidator or fiscal agent and such order remains


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in effect  for 60 days,  or (xii)  take any  formal  action  for the  purpose of
effecting any of the foregoing or looking to the  liquidation  or dissolution of
the Parent or any of its Subsidiaries; or

      (i) An order for relief is entered under the United States bankruptcy laws
or any other  decree or order is  entered  by a court  having  jurisdiction  (i)
adjudging the Parent or any of its Subsidiaries  bankrupt or insolvent,  or (ii)
approving  as properly  filed a petition  seeking  reorganization,  liquidation,
arrangement,  adjustment or composition of or in respect of the Parent or any of
its Subsidiaries under the United States bankruptcy laws or any other applicable
Federal or state law,  or (iii)  appointing  a receiver,  liquidator,  assignee,
trustee,  custodian,  sequestrator (or other similar  official) of the Parent or
any of its  Subsidiaries  or of any  substantial  part of the Property  thereof,
which  decree or order has  continued  unstayed and in effect for a period of 60
days,  provided that such 60 day period shall not apply (and an immediate  Event
of  Default  shall  occur) if such  decree or order  has been  submitted  by, or
consented  to, by the Parent or any of its  Subsidiaries,  or (iv)  ordering the
winding  up or  liquidation  of  the  affairs  of  the  Parent  or  any  of  its
Subsidiaries  (other  than  an  order  requested  by  the  Parent  or any of its
Subsidiaries in respect of a transaction permitted by Section 7.3); or

      (j) Any judgment or decree  against the Parent or any of its  Subsidiaries
aggregating  in excess of $1,000,000  shall remain  unpaid,  unstayed on appeal,
undischarged, unbonded or undismissed for a period of 30 days; or

      (k) Any Loan Document shall cease, for any reason, to be in full force and
effect, or any Loan Party shall so assert in writing; or

      (l) The FCC or any other  Governmental  Body  cancels  or  revokes  any of
Arch's or any of its Subsidiaries' material licenses, or fails to renew any such
license or licenses,  which  cancellation,  revocation or failure to renew could
reasonably be expected to have a Material Adverse Effect; or

      (m) There shall occur a Change of Control; or

      (n) There shall occur a Default or Event of Default  (under and as defined
in the Parent Discount Notes Indenture,  the Parent  Subordinated Note Indenture
or any of the Arch Indentures).

      Upon  the  occurrence  of an Event of  Default  or at any time  thereafter
during  the  continuance  thereof,  (a) if such  event is an  Event  of  Default
specified in clauses (h) or (i) above,  the  Commitments  shall  immediately and
automatically  terminate and the Loans, all accrued and unpaid interest thereon,
the Reimbursement  Obligations,  the PageNet  Reimbursement  Obligations and all
other amounts owing under the Loan Documents  shall  immediately  become due and
payable  without any further  action,  and the  Administrative  Agent,  upon the
direction of the Required Lenders shall, exercise any and all remedies and other
rights provided in the Loan Documents,  and (b) if such event is any other Event
of  Default,  any or all of the  following  actions  may be taken:  (i) upon the
direction of the Required Lenders,  the Administrative Agent shall, by notice to
the Borrower, declare the Commitments to be terminated, forthwith, whereupon the
Commitments  shall  immediately  terminate,  and (ii) upon the  direction of the


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Required Lenders,  the  Administrative  Agent shall, by notice of default to the
Borrower,  declare  the Loans,  all  accrued and unpaid  interest  thereon,  the
Reimbursement  Obligations,  the PageNet Reimbursement Obligations and all other
amounts  owing  under  the  Loan  Documents  to be due  and  payable  forthwith,
whereupon  the  same  shall  immediately   become  due  and  payable,   and  the
Administrative  Agent shall,  and upon the  direction  of the Required  Lenders,
exercise any and all remedies  and other  rights  provided  pursuant to the Loan
Documents.  Except as otherwise provided in this Section,  presentment,  demand,
protest and all other notices of any kind are hereby  expressly  waived.  To the
extent not prohibited by applicable law, the Borrower  hereby further  expressly
waives and covenant not to assert any appraisement,  valuation, stay, extension,
redemption  or similar laws,  now or at any time  hereafter in force which might
delay,  prevent or otherwise  impede the  performance or enforcement of any Loan
Document.

      In the event that the Commitments  shall have terminated or the Loans, all
accrued and unpaid  interest  thereon and all other amounts owing under the Loan
Documents  shall have become due and payable  pursuant to the provisions of this
Section  9, any funds  received  by any  Credit  Party  from or on behalf of the
Borrower (except funds received by any Lender as a result of a purchase from any
other Lender  pursuant to Section  2.9(c)) shall be remitted to, and applied by,
the Administrative Agent in the following manner and order:

         (i) first, to reimburse the Administrative  Agent, the Letter of Credit
Issuer, the PageNet Letter of Credit Issuer and the Lenders,  in that order, for
any expenses due from the Borrower pursuant to the provisions of Section 11.4,

         (ii) second, to the payment of the Fees, pro rata according to the Fees
due and owing to the Credit Parties,

         (iii) third, to the payment, pro rata according to the Total Percentage
of each Lender, of interest due on the Loans, the Reimbursement  Obligations and
the PageNet Reimbursement Obligations,

         (iv)  fourth,  to the  payment  of any other  fees,  expenses  or other
amounts  (other than the principal of and interest on the Loans)  payable by the
Loan Parties to the Credit Parties under the Loan Documents,

         (v) fifth, to the payment to the Lenders of, and on a pro rata basis in
accordance with, the unpaid  principal  amount of the Loans,  the  Reimbursement
Obligations and the PageNet  Reimbursement  Obligations and each amount then due
and payable  under each  Secured  Hedging  Agreement  between the Borrower and a
Lender, and

         (vi) sixth,  any remaining  funds shall be paid to the Borrower or as a
court of competent jurisdiction shall direct.



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ARTICLE 10. THE ADMINISTRATIVE AGENT

   Section 10.1  Appointment.


      Each of the Lenders hereby irrevocably  appoints BNY as the Administrative
Agent,  Collateral  Agent and Security Agent and  authorizes the  Administrative
Agent,  Collateral  Agent and Security  Agent to take such actions on its behalf
and to  exercise  such  powers as are  delegated  to it by the terms of the Loan
Documents,  together with such actions and powers as are  reasonably  incidental
thereto.

   Section 10.2 Individual Capacity.

      The Person serving as the  Administrative  Agent  hereunder shall have the
same rights and powers in its  capacity as a Lender as any other  Lender and may
exercise  the same as  though  it were not the  Administrative  Agent,  and such
Person and its Affiliates may accept  deposits from, lend money to and generally
engage  in any  kind of  business  with the  Borrower,  any  Subsidiary,  or any
Affiliate of the Borrower as if it were not the Administrative Agent hereunder.

   Section 10.3 Exculpatory Provisions.

      The  Administrative  Agent shall not have any duties or obligations except
those  expressly  set forth  herein.  Without  limiting  the  generality  of the
foregoing, (1) the Administrative Agent shall not be subject to any fiduciary or
other  implied  duties,  regardless  of whether a Default  has  occurred  and is
continuing,  (2) the  Administrative  Agent  shall not have any duty to take any
discretionary action or exercise any discretionary  powers, except discretionary
rights and powers expressly contemplated hereby that the Administrative Agent is
required to exercise in writing by the Required Lenders (or such other number or
percentage  of the  Lenders as shall be  necessary  under the  circumstances  as
provided in Section  11.1),  and (3) except as expressly set forth  herein,  the
Administrative  Agent  shall  not have any duty to  disclose,  and  shall not be
liable for the failure to disclose,  any information relating to the Borrower or
any  Subsidiary  that is  communicated  to or  obtained  by the bank  serving as
Administrative   Agent  or  any  of  its   Affiliates  in  any   capacity.   The
Administrative Agent shall not be liable for any action taken or not taken by it
with the consent or at the request of the Required Lenders (or such other number
or percentage of the Lenders as shall be necessary  under the  circumstances  as
provided  in  Section  11.1) or in the  absence of its own gross  negligence  or
willful  misconduct.  The  Administrative  Agent  shall  be  deemed  not to have
knowledge of any Default unless and until written notice thereof is given to the
Administrative   Agent  by  the  Borrower  or  another   Credit  Party  and  the
Administrative  Agent shall not be responsible for or have any duty to ascertain
or inquire  into (i) any  statement,  warranty or  representation  made in or in
connection with this Agreement, (ii) the contents of any certificate,  report or
other  document  delivered  hereunder  or  in  connection  herewith,  (iii)  the
performance or observance of any of the covenants,  agreements or other terms or
conditions set forth herein, (iv) the validity, enforceability, effectiveness or
genuineness of this Agreement or any other  agreements,  instrument or document,
or (v)  the  satisfaction  of any  condition  set  forth  in  Article  5 or 6 or
elsewhere herein,  other than to confirm receipt of items expressly  required to
be delivered to the Administrative Agent.



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   Section 10.4 Reliance by Administrative Agent.

      The  Administrative  Agent shall be  entitled to rely upon,  and shall not
incur any liability for relying upon, any notice, request, certificate, consent,
statement,  instrument,  document or other writing  believed by it to be genuine
and to have been signed or sent by the proper Person. The  Administrative  Agent
also may rely upon any statement  made to it orally or by telephone and believed
by it to be made by the proper  Person,  and shall not incur any  liability  for
relying thereon.  The  Administrative  Agent may consult with legal counsel (who
may be counsel  to the  Borrower),  independent  accountants  and other  experts
selected by it, and shall not be liable for any action  taken or not taken by it
in accordance with the advice of any such counsel, accountants or experts.

   Section 10.5 Delegation.

      The  Administrative  Agent may perform any and all its duties and exercise
its rights and powers by or through any one or more  subagents  appointed by the
Administrative  Agent, provided that no such delegation shall serve as a release
of the  Administrative  Agent or waiver by the Borrower of any rights hereunder.
The  Administrative  Agent and any such  subagent  may  perform  any and all its
duties and  exercise  its rights and powers  through  their  respective  Related
Parties.  The exculpatory  provisions of this Section 10 shall apply to any such
subagent  and to the Related  Parties of the  Administrative  Agent and any such
subagent,  and shall apply to their respective activities in connection with the
syndication of the credit  facilities  provided for herein as well as activities
as Administrative Agent.

   Section 10.6 Resignation; Successor Administrative Agent.

      Subject to the  appointment  and acceptance of a successor  Administrative
Agent as provided in this Section,  the  Administrative  Agent may resign at any
time by notifying the Lenders and the Borrower.  Upon any such resignation,  the
Required Lenders shall have the right,  with the written consent of the Borrower
(such consent not to be unreasonably  withheld and not to be required during the
continuance  of an Event of Default)  to appoint a  successor.  If no  successor
shall have been so  appointed by the  Required  Lenders and shall have  accepted
such appointment  within 30 days after the retiring  Administrative  Agent gives
notice of its resignation, then the retiring Administrative Agent may, on behalf
of the Lenders,  appoint a successor  Administrative Agent which shall be a bank
with an office in New York, New York, or an Affiliate of any such bank. Upon the
acceptance of its appointment as Administrative  Agent hereunder by a successor,
such successor  shall succeed to and become vested with all the rights,  powers,
privileges  and duties of the retiring  Administrative  Agent,  and the retiring
Administrative  Agent  shall be  discharged  from  its  duties  and  obligations
hereunder.  The fees payable by the Borrower to a successor Administrative Agent
shall be the same as those payable to its predecessor  unless  otherwise  agreed
between  the  Borrower  and such  successor.  After the  Administrative  Agent's
resignation hereunder,  the provisions of this Section 10 and Section 11.4 shall
continue in effect for the benefit of such retiring  Administrative  Agent,  its
subagents and their  respective  Related Parties in respect of any actions taken
or  permitted  to be taken by any of them while it was acting as  Administrative
Agent.



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   Section 10.7 Non-Reliance on Other Credit Parties.

      Each Credit  Party  acknowledges  that it has,  independently  and without
reliance  upon the  Administrative  Agent or any other Credit Party and based on
such documents and information as it has deemed appropriate, made its own credit
analysis  and  decision to enter into this  Agreement.  Each  Credit  Party also
acknowledges  that  it  will,   independently  and  without  reliance  upon  the
Administrative  Agent or any other Credit Party and based on such  documents and
information as it shall from time to time deem appropriate, continue to make its
own decisions in taking or not taking action under or based upon this Agreement,
any related agreement or any document furnished hereunder or thereunder.

   Section 10.8 Agents.

      The Bank  Collateral  Agent,  BNY as a  Collateral  Agent and the Security
Agent  shall  have no duties or  obligations  under the Loan  Documents  in such
capacities  except for such duties and  obligations  expressly  set forth in the
Loan Documents to which it is a party. The Managing Agents,  Syndication  Agent,
Documentation  Agent  and  Co-Documentation  Agents  shall  have  no  duties  or
obligations under the Loan Documents in their respective  capacities as Managing
Agents,  Syndication Agent, Documentation Agent and Co-Documentation Agents. The
Bank Collateral  Agent,  BNY, as a Collateral  Agent,  the Security  Agent,  the
Managing Agents,  Syndication Agent,  Documentation  Agent and  Co-Documentation
Agents shall be entitled to the same  protections,  indemnities and rights,  and
subject to the same  standards  with  respect to their  actions,  inactions  and
duties, as the Administrative Agent.

ARTICLE 11. MISCELLANEOUS


   Section 11.1 Amendments and Waivers.


      (a) No failure to exercise and no delay in exercising,  on the part of any
Credit  Party,  any right,  remedy,  power or privilege  under any Loan Document
shall operate as a waiver thereof;  nor shall any single or partial  exercise of
any right, remedy, power or privilege under any Loan Document preclude any other
or further exercise thereof or the exercise of any other right, remedy, power or
privilege. The rights, remedies,  powers and privileges under the Loan Documents
are cumulative and not exclusive of any rights, remedies,  powers and privileges
provided by law. No waiver of any  provision of any Loan  Document or consent to
any departure by any Loan Party therefrom shall in any event be effective unless
the same shall be  permitted  by this  Section,  and then such waiver or consent
shall be effective  only in the specific  instance and for the purpose for which
given.  Without  limiting the generality of the foregoing,  the making of a Loan
shall not be  construed as a waiver of any  Default,  regardless  of whether any
Credit Party may have had notice or knowledge of such Default at the time.

      (b)  Notwithstanding  anything  to the  contrary  contained  in  any  Loan
Document,  with the written consent of the Required Lenders,  the Administrative
Agent and the  appropriate  parties to the Loan Documents  (other than the other
Credit  Parties)  may,  from  time  to  time,  enter  into  written  amendments,
supplements  or  modifications  thereof  and,  with the consent of the  Required


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Lenders,  the  Administrative  Agent on behalf of the other Credit Parties,  may
execute  and  deliver  to any such  parties  a  written  instrument  waiving  or
consenting  to  the  departure  from,  on  such  terms  and  conditions  as  the
Administrative Agent may specify in such instrument,  any of the requirements of
the Loan Documents or any Default and its consequences;  provided, however, that
no such amendment, supplement, modification, waiver or consent shall:

         (i) increase the Tranche A Commitment  of any Tranche A Lender  without
such Lender's consent;

         (ii) unless agreed to by each Credit Party affected thereby, (A) reduce
the principal amount of any Extension of Credit,  or reduce the rate of interest
thereon,  or  reduce  any  fees or  other  obligations  payable  under  the Loan
Documents,  (B) extend any date  (including  any  Maturity  Date)  fixed for the
payment of any principal of or interest on any Extension of Credit, any fees, or
any other obligation payable under the Loan Documents, (C) extend the expiration
date of any Letter of Credit  beyond the  Tranche A Maturity  Date or extend the
expiry date of any Existing  PageNet  Letter of Credit  beyond that in effect on
the Merger  Effective  Date,  or (D) extend  any date for the  reduction  of the
Aggregate Tranche A Commitments set forth in Section 2.3(b);

         (iii)  unless  agreed  to by all  of  the  Lenders:  (A)  increase  the
Aggregate  Tranche  A  Commitments,   (B)  increase  the  aggregate  outstanding
principal amount of the Tranche B Loans or the Tranche C Loans, (C) increase the
aggregate outstanding principal amount of the Tranche B-1 Loans as of the Merger
Effective  Date after  giving  effect to the  Joinder and  Assumption  Agreement
(other than increases made pursuant to the  provisions of Section  2.6(j)),  (D)
add  additional  tranches  (except in connection  with the division of a tranche
into two or more  tranches),  (E) change this Section  11.1,  the  definition of
"Minority   Lenders"  or  "Required  Lenders"  or  any  other  provision  hereof
specifying  the number or  percentage  of Lenders  required  to waive,  amend or
modify any  rights  hereunder  or make any  determination  or grant any  consent
hereunder,  (F) change Section 2.9 or 11.13 in a manner that would alter the pro
rata sharing of payments  required  thereby,  (G) consent to any  assignment  or
delegation by any Loan Party of any of its rights or obligations  under any Loan
Document,  (H) release any Subsidiary  Guarantor from its obligations  under the
Subsidiary Guaranty, Arch from its obligations under Arch Guaranty or the Parent
from its  obligations  under the Parent  Guaranty  (except  as may be  expressly
permitted  thereunder or hereunder),  or (I) release any of the Collateral  from
the Liens of the  Collateral  Documents,  except as may be  expressly  permitted
thereunder or hereunder,

         (iv)  without the consent of Lenders of each Class having not less than
66 2/3% of (A) the Aggregate  Tranche A Commitments (or if the Aggregate Tranche
A  Commitments  have expired or otherwise  are not in  existence,  the Tranche A
Exposure)  in the case of  Tranche  A  Lenders,  (B) the  aggregate  outstanding
principal  amount of the  Tranche B Loans in the case of Tranche B Lenders,  (C)
the aggregate  outstanding principal amount of the Tranche B-1 Loans in the case
of Tranche B-1 Lenders,  and (D) the aggregate  outstanding  principal amount of
the Tranche C Loans in the case of Tranche C Lenders,  change the  provisions of
Section 2.4 relating to the  allocation of  prepayments  to the Tranche A Loans,


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Tranche B Loans,  Tranche B-1 Loans and Tranche C Loans and the reduction of the
Aggregate Tranche A Commitments, or

         (v) unless agreed to by the  Administrative  Agent, the Bank Collateral
Agent,  BNY, as a Collateral  Agent,  the Security Agent or the Letter of Credit
Issuer,  amend,  modify  or  otherwise  affect  the  rights  or  duties  of  the
Administrative Agent, the Bank Collateral Agent, BNY, as a Collateral Agent, the
Security  Agent or the  Letter of Credit  Issuer,  respectively,  under the Loan
Documents.

      Any such  amendment,  supplement,  modification,  waiver or consent  shall
apply  equally to each Credit  Party and shall be binding upon each Credit Party
and each Loan Party party to the  applicable  Loan  Document and upon all future
holders  of  the  Notes,   the   Reimbursement   Obligations   and  the  PageNet
Reimbursement  Obligations.  In the case of any waiver,  the Credit  Parties and
each Loan Party party to the applicable Loan Document shall be restored to their
former position and rights  hereunder and under the outstanding  Notes and other
Loan Documents to the extent provided for in such waiver, and any Default waived
shall not  extend  to any  subsequent  or other  Default,  or  impair  any right
consequent thereon.

   Section 11.2 Notices.

      All notices, requests and demands to or upon the respective parties to the
Loan  Documents  to be  effective  shall be in  writing  and,  unless  otherwise
expressly provided therein, shall be deemed to have been duly given or made when
delivered by hand, one Business Day after having been sent by overnight  courier
service, or when deposited in the mail,  first-class postage prepaid, or, in the
case of notice by facsimile, when sent, to the last address (including telephone
and  facsimile  numbers)  for such  party  specified  by such party in a written
notice  delivered  to the  Administrative  Agent and the Borrower or, if no such
written notice was so delivered, as follows:

      (a) in the case of any Loan  Party,  to such Loan  Party c/o Arch  Paging,
Inc.,  1800  West Park  Drive,  Suite  250,  Westborough,  Massachusetts  01581,
Attention:  J. Roy Pottle, Chief Financial Officer,  Telephone:  (508) 870-6703,
Facsimile: (508) 870-6076,

      (b) in the case of the Administrative  Agent, the Letter of Credit Issuer,
the Bank Collateral  Agent, the Security Agent or BNY, as a Collateral Agent, to
The Bank of New York,  Agency  Function  Administration,  One Wall Street,  18th
Floor,  New  York,  NY  10286;  Attention:  Michael  Pizarro,  Telephone:  (212)
635-4697, Facsimile: (212) 635-6365 or 6366 or 6367; with a copy to: The Bank of
New York, One Wall Street, 16th Floor, New York, NY 10286,  Attention:  Geoffrey
C. Brooks, Telephone: (212) 635-8475, Facsimile (212) 635-8593;

      (c) in the  case  of the  PageNet  Letter  of  Credit  Issuer,  to Bank of
America, N.A., 901 Main Street, 64th Floor, Dallas, TX 75202; Attention: Anthony
M. Cacheria, Telephone: (214) 508-0157, Facsimile: (214) 508-9390; and

      (d) in the case of a Tranche  A Lender,  a Tranche B Lender or a Tranche C
Lender which is a signatory to this  Agreement,  at its address set forth on its


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signature page hereto,  in the case of a Tranche B-1 Lender which is a signatory
to the  Joinder  and  Assumption  Agreement,  at its  address  set  forth on its
signature page thereto,  in the case of any other Lender,  in the Assignment and
Acceptance  Agreement or other instrument  pursuant to which it became a Lender;
provided,  however, that any notice,  request or demand by the Borrower pursuant
to Section 2.2, 2.3, 2.4, 2.6 or 3.3 shall not be effective until received.  Any
party to a Loan Document may rely on signatures of the parties thereto which are
transmitted  by facsimile or other  electronic  means as fully as if  originally
signed.

   Section 11.3 Survival.

      All covenants,  agreements,  representations  and  warranties  made by the
Borrower  herein  and in the  certificates  or other  instruments  delivered  in
connection  with or pursuant to this Agreement  shall be considered to have been
relied upon by the other  parties  hereto and shall  survive the  execution  and
delivery  of  this  Agreement  and  the  making  of any  Extensions  of  Credit,
regardless  of any  investigation  made by any such other party or on its behalf
and  notwithstanding  that the  Administrative  Agent or any Lender may have had
notice or knowledge of any Default or  incorrect  representation  or warranty at
the time any credit is extended hereunder.

   Section 11.4 Expenses; Indemnity.

      (a) The Borrower  agrees,  on demand therefor and whether any Extension of
Credit is made (i) to pay or reimburse the Administrative  Agent and its Related
Parties for all reasonable  out-of-pocket  expenses incurred thereby,  including
the reasonable fees,  charges and  disbursements of counsel,  in connection with
the development,  preparation, execution, syndication and administration of, the
Loan  Documents  (including  any  amendment,  supplement  or other  modification
thereto  (whether or not  executed or  effective)),  any  documents  prepared in
connection  therewith  and the  consummation  of the  transactions  contemplated
thereby and (ii) to pay or reimburse  each Credit Party for all of its costs and
expenses,  including  reasonable fees and disbursements of counsel,  incurred in
connection  with (A) the  protection or enforcement of its rights under the Loan
Documents  and the Existing  PageNet  Letters of Credit,  including  any related
collection proceedings and any negotiation, restructuring or "work-out", and (B)
the enforcement of this Section.

      (b) The Borrower  shall, on demand  therefor,  indemnify each Credit Party
and each of their  respective  Related Parties (each,  an "Indemnified  Person")
against,  and hold each  Indemnified  Person  harmless from, any and all losses,
claims,  damages,  penalties,  liabilities and related  expenses,  including the
fees, charges and disbursements of any counsel,  incurred by or asserted against
any Indemnified  Person in connection with or in any way arising out of any Loan
Document,  any other Transaction Document, any Existing PageNet Letter of Credit
or any  Transaction,  including as a result of (i) any breach by the Borrower of
the terms of any Loan  Document,  the use of proceeds of any Extension of Credit
or Existing PageNet Letter of Credit or any action or failure to act on the part
of  the  Borrower,  (ii)  the  consummation  or  proposed  consummation  of  the
Transactions or any other transactions  contemplated hereby, (iii) any Extension
of  Credit or  Existing  PageNet  Letter  of  Credit or the use of the  proceeds


                                      114
<PAGE>

therefrom, (iv) any actual or alleged presence or release of Hazardous Substance
on or  from  any  property  owned  or  operated  by the  Borrower  or any of its
Subsidiaries,  or any liability in respect of any  Environmental  Law related in
any way to the Borrower or any of its Subsidiaries, (v) any action or failure to
act on the  part of the  Borrower  or (vi)  any  actual  or  prospective  claim,
litigation,  investigation  or  proceeding  relating  to any  of the  foregoing,
whether  based on contract,  tort or any other theory and  regardless of whether
any  Indemnified  Person  is a party  thereto  (collectively,  the  "Indemnified
Liabilities"),  provided that such  indemnity  shall not, as to any  Indemnified
Person,  be  available  to  the  extent  that  such  losses,  claims,   damages,
liabilities or related  expenses  resulted from the gross  negligence or willful
misconduct of such Indemnified Person.

      (c) To the extent that the Borrower fails to pay any amount required to be
paid by it to the Administrative Agent or any of its Affiliates under subsection
(a) or (b) of this Section, each Lender severally agrees, on demand therefor, to
pay to the  Administrative  Agent such Lender's Total  Percentage of such amount
(determined  as  of  the  time  that  the  applicable  unreimbursed  expense  or
Indemnified Liability is sought).

   Section 11.5 Successors and Assigns.

      (a) The Loan  Documents  shall be binding upon and inure to the benefit of
each of the parties thereto, and their respective successors and assigns, except
that no Loan  Party  may  assign  or  otherwise  transfer  any of its  rights or
obligations  thereunder  without the prior written  consent of each Credit Party
(and any such  attempted  assignment  or transfer  without such consent shall be
null and void).

      (b) Each Lender may assign all or a portion of its rights and  obligations
under the Loan Documents to (i) any Subsidiary or Affiliate of such Lender, (ii)
any other Lender, or (iii) with the consent of the Borrower,  the Administrative
Agent, in the case of an assignment of rights and obligations  with respect to a
Tranche  A  Commitment,  the  Letter  of  Credit  Issuer,  and in the case of an
assignment  of rights and  obligations  with  respect to a Tranche B-1 Loan by a
Tranche  B-1  Lender at any time when an  Existing  PageNet  Letter of Credit is
outstanding or there is any unreimbursed  PageNet Letter of Credit Reimbursement
Obligation  with  respect  to which  such  Tranche  B-1  Lender has not paid its
participation  share to the PageNet Letter of Credit Issuer,  the PageNet Letter
of Credit Issuer (which consents shall not be  unreasonably  withheld or delayed
and, in the case of the  Borrower's  consent,  shall not be required  during the
continuance of an Event of Default), to any other Eligible Institution, provided
that:

         (i) except in the case of an  assignment to a Lender or an Affiliate of
a Lender or an  assignment  of the  entire  remaining  amount  of the  assigning
Lender's  rights and  obligations  under the Loan  Documents,  the amount of the
assigning  Lender's  Tranche A  Commitment  and  Tranche C Loan  subject to such
assignment shall not be less than $5,000,000, and

         (ii) for each assignment,  the assignor and such assignee shall deliver
to the  Administrative  Agent  three  copies  of an  Assignment  and  Acceptance
Agreement  executed by each of them,  along with an assignment fee in the sum of


                                      115
<PAGE>

$3,500 for the account of the  Administrative  Agent and, if the assignee is not
then a Lender and is a Foreign Credit Party,  the documents  required by Section
3.6(c).

      Upon receipt of such number of executed copies of each such Assignment and
Acceptance  Agreement together with the assignment fee therefor and the consents
required to such assignment,  if required, the Administrative Agent shall record
the same and execute not fewer than two copies of such Assignment and Acceptance
Agreement in the  appropriate  place,  deliver one such copy to the assignor and
one such copy to the assignee,  and deliver one photocopy thereof,  as executed,
to the Borrower. Subject to the recording thereof by the Administrative Agent as
provided above,  from and after the Assignment Date specified in, and as defined
in, such Assignment and Acceptance Agreement, the assignee thereunder shall be a
party hereto and, to the extent of the interest  assigned by such Assignment and
Acceptance  Agreement,  have (in  addition  to any such  rights and  obligations
theretofore  held by it) the rights and  obligations  of a Lender under the Loan
Documents,  and the  assigning  Lender  thereunder  shall,  to the extent of the
interest assigned by such Assignment and Acceptance Agreement,  be released from
its obligations  under the Loan Documents (and, in the case of an Assignment and
Acceptance   Agreement  covering  all  of  the  assigning  Lender's  rights  and
obligations  under the Loan  Documents,  such  Lender  shall cease to be a party
hereto but shall  continue to be entitled to the benefits of Sections  3.4, 3.5,
3.6 and 11.4).  The Borrower agrees that, if requested,  in connection with each
such assignment, it shall at its own cost and expense execute and deliver to the
Administrative  Agent or such  assignee  a Note,  payable  to the  order of such
assignee and dated the Third Restatement Date. The Administrative Agent shall be
entitled to rely upon the  representations  and warranties  made by the assignee
under each Assignment and Acceptance Agreement.

      (c) Each Lender may grant  participations in all or any part of its rights
and obligations  under the Loan Documents to one or more Eligible  Institutions,
provided that (i) such Lender's  obligations  under this Agreement and the other
Loan  Documents  shall remain  unchanged,  (ii) such Lender shall remain  solely
responsible  to the other parties to this Agreement and the other Loan Documents
for the  performance  of such  obligations,  (iii) the  Borrower  and the Credit
Parties  shall  continue  to deal  solely  and  directly  with  such  Lender  in
connection with such Lender's  rights and obligations  under the Loan Documents,
(iv) the Borrower  shall not at any time be obligated to pay any  participant in
any  interest  of any  Lender  hereunder  any sum in excess of the sum which the
Borrower  would  have been  obligated  to pay to such  Lender in respect of such
interest had such Lender not sold such participation,  and (v) the voting rights
of any  holder  of any  participation  shall be  limited  to  decisions  that in
accordance with Section 11.1 require the consent of all of the Lenders.

      (d) Subject to subsection (e) below, any Lender may at any time assign all
or any portion of its rights  under any Loan  Document  to any  Federal  Reserve
Bank.

      (e) Except to the extent of any  assignment  pursuant  to  subsection  (b)
above,  no Lender  shall be  relieved of any of its  obligations  under the Loan
Documents as a result of any assignment of or granting of participations in, all
or any part of its rights and obligations under the Loan Documents.



                                      116
<PAGE>

   Section 11.6 Counterparts; Integration.

      Each Loan  Document  (other than the Notes) may be executed by one or more
of the parties  thereto on any number of separate  counterparts  and all of said
counterparts  taken  together  shall be  deemed to  constitute  one and the same
document.  It shall not be  necessary  in making  proof of any Loan  Document to
produce  or  account  for more  than one  counterpart  signed by the party to be
charged.  Delivery of an executed  counterpart  of a signature  page of any Loan
Document by  facsimile  shall be  effective  as delivery of a manually  executed
counterpart  of such Loan Document.  The Loan Documents and any separate  letter
agreements  between the  Borrower and a Credit Party with respect to fees embody
the entire  agreement  and  understanding  among the Loan Parties and the Credit
Parties  with  respect to the subject  matter  thereof and  supersede  all prior
agreements and understandings among the Loan Parties and the Credit Parties with
respect to the subject matter thereof.

   Section 11.7 Severability.

      Every provision of the Loan Documents is intended to be severable,  and if
any term or provision thereof shall be invalid, illegal or unenforceable for any
reason, the validity,  legality and  enforceability of the remaining  provisions
thereof  shall  not  be  affected  or  impaired  thereby,  and  any  invalidity,
illegality  or  unenforceability  in  any  jurisdiction  shall  not  affect  the
validity,  legality or enforceability of any such term or provision in any other
jurisdiction.

   Section 11.8 GOVERNING LAW.

      THE  LOAN  DOCUMENTS  AND  THE  RIGHTS  AND  OBLIGATIONS  OF  THE  PARTIES
THEREUNDER  SHALL BE GOVERNED BY, AND  CONSTRUED AND  INTERPRETED  IN ACCORDANCE
WITH, THE LAW OF THE STATE OF NEW YORK.

   Section 11.9 Jurisdiction; Service of Process.

      Each  party  to  a  Loan  Document  hereby  irrevocably   submits  to  the
nonexclusive  jurisdiction of any New York State or Federal court sitting in the
City of New York over any suit, action or proceeding  arising out of or relating
to the Loan Documents.  Each party to a Loan Document hereby irrevocably waives,
to the fullest extent permitted or not prohibited by law, any objection which it
may now or hereafter have to the laying of the venue of any such suit, action or
proceeding  brought in such a court and any claim that any such suit,  action or
proceeding  brought in such a court has been brought in an  inconvenient  forum.
Each Loan Party hereby agrees that a final judgment in any such suit,  action or
proceeding  brought in such a court,  after all  appropriate  appeals,  shall be
conclusive  and binding  upon it and may be enforced in other  jurisdictions  by
suit on the  judgment or in any other  manner  provided by law.  Nothing in this
Agreement shall affect any right that a Credit Party may otherwise have to bring
any action or proceeding  relating to Loan Documents against the Borrower or its
properties  in the courts of any  jurisdiction.  Each  party to a Loan  Document
hereby  irrevocably  consents to service of process in the manner  provided  for
notices in Section 11.2.  Nothing in this Agreement will affect the right of any
party to a Loan Document to serve process in any other manner permitted by law.



                                      117
<PAGE>

   Section 11.10 WAIVER OF TRIAL BY JURY.

      EACH PARTY  HERETO  HEREBY  WAIVES,  TO THE FULLEST  EXTENT  PERMITTED  BY
APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN ANY LEGAL PROCEEDING
DIRECTLY OR  INDIRECTLY  ARISING OUT OF OR  RELATING  TO THIS  AGREEMENT  OR THE
TRANSACTIONS  CONTEMPLATED HEREBY (WHETHER BASED ON CONTRACT,  TORT OR ANY OTHER
THEORY).  EACH  PARTY  HERETO (A)  CERTIFIES  THAT NO  REPRESENTATIVE,  AGENT OR
ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED,  EXPRESSLY OR OTHERWISE,  THAT SUCH
OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING
WAIVER  AND (B)  ACKNOWLEDGES  THAT IT AND THE OTHER  PARTIES  HERETO  HAVE BEEN
INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS,  THE MUTUAL WAIVERS
AND CERTIFICATIONS IN THIS SECTION.

   Section 11.11 Savings Clause.

      (a)  This   Agreement  is  intended   solely  as  an  amendment   of,  and
contemporaneous  restatement  of, the terms and  conditions  of the Existing API
Credit  Agreements  and, on and after the Merger  Effective  Time,  the Existing
PageNet Credit  Agreement,  and this Agreement is not intended and should not be
construed as in any way  extinguishing  or  terminating  the Existing API Credit
Agreements  or, on and after the Merger  Effective  Time,  the Existing  PageNet
Credit Agreement.  The Borrower Pledge Agreement,  the Parent Guaranty, the Arch
Guaranty,  the Subsidiary Guaranty, the Restricted Subsidiary Security Agreement
and  each of the  Existing  PageNet  Collateral  Documents,  each to the  extent
amended as provided  herein,  shall remain in full force and effect and continue
to secure the  Obligations  and,  on and after the Merger  Effective  Time,  the
obligations  of PageNet and its  Subsidiaries  under the  Existing  PageNet Loan
Documents, as set forth therein.

      (b)  Nothing  in this  Agreement  shall  affect  the  rights of the Credit
Parties to payments  under  Articles 3 and 11 for the period  prior to the Third
Restatement Date and such rights shall continue to be governed by the provisions
of the Existing API Credit Agreements.

      (c) The  applicable  Loan  Parties have  heretofore  executed the Borrower
Security Agreement (Bank), Borrower Security Agreement (14% Indenture), Borrower
Security  Agreement (9 1/2% Indenture),  Arch Security  Agreement  (Bank),  Arch
Security Agreement (14% Indenture),  Arch Security Agreement (9 1/2% Indenture),
Restricted Subsidiary Security Agreement (14% Indenture),  Restricted Subsidiary
Security  Agreement  (9  1/2%  Indenture),   Unrestricted   Subsidiary  Security
Agreement (Bank), Unrestricted Subsidiary Security Agreement (14% Indenture) and
Unrestricted  Subsidiary Security Agreement (9 1/2% Indenture),  each as defined
in the Existing API Credit Agreements. None of the foregoing agreements has been
declared  effective and no security interest has been granted  thereunder.  Upon
the execution and delivery of the Security and Intercreditor Agreement,  each of
such  agreements  shall  automatically  and with no  further  action  be  deemed
terminated and of no further force or effect.



                                      118
<PAGE>

   Section 11.12 Confidentiality.

      Each of the  Administrative  Agent and the other Credit Parties agrees (on
behalf of itself and each of its affiliates,  directors, officers, employees and
representatives)  to  use  reasonable  precautions  to  keep  confidential,   in
accordance with their customary procedures for handling confidential information
of the same nature, all non-public information supplied by Arch, the Borrower or
any of their  respective  Subsidiaries  pursuant to this Agreement  which (a) is
identified  by such  Person  as  being  confidential  at the  time  the  same is
delivered to such Credit Party or the  Administrative  Agent, or (b) constitutes
any financial statement,  financial projections or forecasts, budget, compliance
certificate,  audit  report,  management  letter or  accountants'  certification
delivered hereunder (collectively,  the "Confidential  Information"),  provided,
however,  that nothing  herein shall limit the  disclosure  of any  Confidential
Information (i) to the extent required by statute,  rule, regulation or judicial
process,  (ii) on a confidential basis, to counsel to any of the Credit Parties,
(iii) to bank  examiners  and  other  governmental  bodies or  examiners  having
jurisdiction over such Credit Party, auditors or accountants,  and any analogous
counterpart  thereof,  (iv) to the  Administrative  Agent  or the  other  Credit
Parties,  (v) in connection  with any litigation to which any one or more of the
Credit  Parties  is a party,  provided  that if  practicable  to do so under the
circumstances,  Arch or the Borrower,  as the case may be, is given prior notice
of,  and  an  opportunity  to  contest,  the  production  of  such  Confidential
Information  (which  notice  and  opportunity  shall  be  reasonable  under  the
circumstances),  (vi) to any assignee or participant (or prospective assignee or
participant) so long as such assignee or participant (or prospective assignee or
participant)   agrees  in   writing  to  keep  such   Confidential   Information
confidential on  substantially  the same basis as set forth in this Section,  or
(vii) to  affiliates of the  Administrative  Agent or any other Credit Party and
(ix) to the  National  Association  of  Insurance  Commissioners  or any similar
organization or any nationally  recognized rating agency that requires access to
information  about a Lender's  investment  portfolio in connection  with ratings
issued with respect to such Lender.  Notwithstanding  the  provisions  of clause
(vii) above,  neither the Administrative  Agent nor any other Credit Party shall
disclose any such Confidential  Information to any of its respective affiliates,
directors,  officers,  employees or representatives except to the extent that it
or they have a need to know such Confidential Information in connection with the
structuring or  administration  of the Extension of Credit or any Loan Document,
any assignment or participation thereof or activities incidental thereto.

   Section 11.13 Intercreditor Agreement.

      (a) Notwithstanding anything in any Loan Document to the contrary,  except
as  otherwise  provided  in  paragraph  (b)  immediately  below,  on  and  after
acceleration  of the  Borrower  Obligations,  to the  extent  that  proceeds  of
Existing   PageNet   Collateral  or  Existing  API  Collateral  are  applied  to
obligations  of the Loan Parties under the Loan  Documents and if as a result of
such application any Lender would receive payment of a greater proportion of the
aggregate principal amount of, or accrued interest on, such obligations than the
proportion  received by any other Lender, then the Lender receiving such greater
proportion shall promptly  purchase,  at face value for cash,  participations in
obligations  owing to the other  Lenders  to the  extent  necessary  so that the
benefit of such  payment  shall be shared by the Lenders  ratably in  accordance


                                      119
<PAGE>

with  the  aggregate  amount  of  principal  of and  accrued  interest  on their
respective Loans.

      (b) Notwithstanding  anything in any Loan Document to the contrary, in the
event that any Loan Party shall become subject,  as a debtor, to any bankruptcy,
insolvency,  reorganization  or other  similar  proceeding  and,  in  connection
therewith,  the ratio of the allowed  secured claims of the Tranche B-1 Lenders,
as a group,  in the Existing  PageNet  Collateral to the total allowed claims of
the  Tranche  B-1 Lenders is  different  from the ratio of the  allowed  secured
claims of the Tranche A Lenders,  Tranche B Lenders and Tranche C Lenders,  as a
group, in the Existing API Collateral to the total allowed claims of the Tranche
A Lenders,  Tranche B Lenders  and  Tranche C  Lenders,  then the group with the
higher ratio shall  transfer a pro rata  portion of each of its allowed  secured
claims to the group with the lesser ratio in consideration  for a portion of the
allowed general unsecured claims of the latter group, in each case at par value,
to the extent necessary to cause such ratios to be equal.

 [signature pages follow]




                                      120
<PAGE>

                             AMENDMENT NO. 1 TO THE
                   THIRD AMENDED AND RESTATED CREDIT AGREEMENT



      AMENDMENT NO. 1 (this "Amendment"), dated as of May 19, 2000, to the Third
Amended and Restated Credit Agreement,  dated as of March 23, 2000, by and among
Arch Paging, Inc. (the "Borrower"),  the Lenders party thereto,  The Bank of New
York, Royal Bank of Canada,  Toronto Dominion (Texas),  Inc.,  Barclays Bank PLC
and  Fleet  National  Bank,  as  Managing  Agents,  Royal  Bank  of  Canada,  as
Documentation   Agent,   Barclays   Bank  PLC  and  Fleet   National   Bank,  as
Co-Documentation  Agents,  Toronto Dominion (Texas), Inc., as Syndication Agent,
and The Bank of New York, as Administrative Agent (the "Credit Agreement").


                                    RECITALS


      A.  Capitalized  terms used herein which are not defined herein shall have
the  respective  meanings  ascribed  thereto in the Credit  Agreement as amended
hereby.


      B. The  Borrower  has  requested  that  certain  provisions  of the Credit
Agreement  be amended as set forth  below and the  Administrative  Agent and the
Lenders  signing  below are  willing to agree  thereto  subject to the terms and
conditions hereinafter set forth.

      Accordingly,   in   consideration  of  the  Recitals  and  the  covenants,
conditions and agreements hereinafter set forth, and for other good and valuable
consideration,  the receipt and adequacy of which are hereby  acknowledged,  the
parties hereto agree as follows:

      1. The following  table is substituted  for the table contained in Section
2.5(a)(ii)(A)  of the Credit  Agreement  (relating  to the  amortization  of the
Tranche B-1 Loans):

===============================================================================
       Date            Percentage               Date                Percentage
-------------------------------------------------------------------------------
  March 31, 2001         0.625%           December 31, 2003           5.000%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  June 30, 2001          0.625%           March 31, 2004              5.625%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  September 30, 2001     0.625%           June 30, 2004               5.625%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  December 31, 2001      0.625%           September 30, 2004          5.625%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  March 31, 2002         3.750%           December 31, 2004           5.625%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  June 30, 2002          3.750%           March 31, 2005              6.250%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  September 30, 2002     3.750%           June 30, 2005               6.250%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  December 31, 2002      3.750%           September 30, 2005          6.250%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  March 31, 2003         5.000%           December 31, 2005           6.250%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  June 30, 2003          5.000%           March 31, 2006              7.500%
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
  September 30, 2003     5.000%           Tranche B-1          the remaining
                                          Maturity Date        unpaid principal
                                                               amount of the
                                                               Tranche B-1 Loans
                                                               together with all
                                                               accrued and
                                                               unpaid interest
                                                               thereon.
===============================================================================

<PAGE>

      2. Section 2.7 of the Credit  Agreement is amended in its entirety to read
as follows:

         The  proceeds  of the  Extensions  of Credit  shall be used  solely,
      directly  or  indirectly,  (i) for  general  corporate  purposes of the
      Borrower  and its  Subsidiaries,  including  Capital  Expenditures  and
      working capital,  not inconsistent with the provisions hereof,  (ii) to
      finance  Acquisitions to the extent  permitted by Section 8.6, (iii) to
      make Restricted  Payments to the extent  permitted by Section 8.5, (iv)
      to  make  Investments  in  the  PageNet  Canadian  Subsidiaries  in  an
      aggregate  amount not in excess of $2,000,000,  (v) in the event of the
      commencement of the Bankruptcy  Proceeding,  to repay the  Indebtedness
      under the DIP  Facility,  provided  that the  aggregate  amount of such
      repayment shall not exceed  $50,000,000  and provided  further that the
      conditions of Section  8.3(iv)(M)  are  satisfied,  and (vi) to pay the
      reasonable  out-of-pocket fees and expenses incurred by the Borrower in
      connection  with  the  transactions  contemplated  by  the  Transaction
      Documents.  Notwithstanding  anything to the contrary  contained in any
      Loan Document,  the Borrower agrees that no part of the proceeds of any
      Extensions  of  Credit  will be used,  directly  or  indirectly,  for a
      purpose which violates any law, including the provisions of Regulations
      T, U or X.

      3. The following  table is substituted  for the table contained in Section
7.14(b) of the Credit Agreement (relating to the Interest Coverage Ratio):

========================================================  =====================
                 Period                                           Ratio
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
Merger Effective Date through September 30, 2001                2.00:1.00
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
December 31, 2001 and thereafter                                2.25:1.00
========================================================  =====================


      4. The following  table is substituted  for the table contained in Section
7.15(b)(i) of the Credit Agreement (relating to the Total Leverage Ratio):

========================================================  =====================
                 Period                                           Ratio
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
Merger Effective Date through June 29, 2001                     4.25:1.00
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
June 30, 2001 through September 29, 2001                        4.00:1.00
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
September 30, 2001 through December 30, 2001                    3.75:1.00
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
December 31, 2001 and thereafter                                3.50:1.00
========================================================  =====================


      5. The following  table is substituted  for the table contained in Section
7.16(b) of the Credit Agreement (relating to the API Leverage Ratio):

========================================================  =====================
                 Period                                           Ratio
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
Merger Effective Date through June 29, 2001                     3.00:1.00
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
June 30, 2001 through December 30, 2001                         2.75:1.00
--------------------------------------------------------  ---------------------

                                      2
<PAGE>

========================================================  =====================
                 Period                                           Ratio
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
December 31, 2001 through June 29, 2002                         2.50:1.00
--------------------------------------------------------  ---------------------
--------------------------------------------------------  ---------------------
June 30, 2002 and thereafter                                    2.00:1.00
========================================================  =====================


      6.  Section  7.17 of the  Credit  Agreement  is  amended  by  substituting
"$325,000,000" for "$350,000,000" at the end thereof.

      7. Section  8.3(iv)(I) of the Credit  Agreement is amended by substituting
"$175,000,000"  for  "$225,000,000"  in clause (1) thereof  and by  substituting
"$400,000,000" for "$485,000,000" in clause (2)(ii) thereof.

      8. Section  8.3(iv)(K) of the Credit  Agreement is amended in its entirety
to read as follows:

         (K) Parent  Exchange  Offer.  The Parent  shall have  completed  the
      Parent Exchange Offer on terms  satisfactory to the Managing Agents, at
      least 50% of the  aggregate  principal  amount of the  Parent  Discount
      Notes  outstanding on January 1, 2000 shall have been validly  tendered
      and not withdrawn or shall have been  exchanged for common Stock of the
      Parent or other Stock of the Parent  which,  by its terms,  converts to
      common  Stock of the  Parent  on the  Merger  Effective  Date,  and the
      Administrative  Agent shall have received a certificate  of a Financial
      Officer of the Parent to the  foregoing  effects in form and  substance
      satisfactory to the Managing Agents.

      9. Section  8.3(iv)(M) of the Credit  Agreement is amended in its entirety
to read as follows:

         (M) Minimum Availability.  Immediately after the consummation of the
      PageNet Transactions and the repayment in full of the DIP Facility, the
      Borrower shall have availability  under the Tranche A Commitments in an
      amount not less than the sum of  $85,000,000  minus an amount  equal to
      the outstanding  principal amount of the DIP Facility immediately prior
      to the consummation of the PageNet Merger in excess of $15,000,000 (but
      not more than $35,000,000) plus, without duplication, the amount of any
      fees or expenses  incurred by the Parent or any of its  Subsidiaries in
      connection  with the  PageNet  Transactions  which  are not paid on the
      Merger Effective Date

      10. Section  8.3(v)(B) of the Credit  Agreement is amended in its entirety
to read as follows:

         (B) Repayment of the DIP Facility.  The DIP Facility shall have been
      repaid in full  (including with the proceeds of Tranche A Loans so long
      as the  requirements  of  Section  8.3(iv)(M)  of  this  Agreement  are
      satisfied),   and  all  Liens  in  respect   thereof  shall  have  been


                                      3
<PAGE>

      terminated,  and the Administrative Agent shall have received evidence,
      in form and  substance  satisfactory  to the Managing  Agents,  to such
      effect.

      11.  Paragraphs 1 - 10 of this Amendment  shall not be effective until the
prior or  simultaneous  fulfillment of the following  conditions (the "Amendment
Effective Date"):

            (a) The  Administrative  Agent shall have received  this  Amendment,
      duly  executed by a duly  authorized  officer or officers of the Borrower,
      the Parent, Arch, the Subsidiary Guarantors and Required Lenders.

            (b)  The  representations  and  warranties  contained  in  the  Loan
      Documents  shall be true and correct in all material  respects  (except to
      the extent such  representations and warranties  specifically relate to an
      earlier  date) and no  Default or Event of Default  shall  exist,  and the
      Administrative  Agent shall have received a  certificate  of an officer of
      the  Borrower,  dated the  Amendment  Effective  Date,  certifying to such
      effect.

            (c)  The  Administrative   Agent  shall  have  received  such  other
      documents as it shall reasonably request.

      12.  Each Loan Party  hereby (i)  reaffirms  and admits the  validity  and
enforceability  of the Credit  Agreement (as amended by this  Amendment) and the
other Loan Documents and all of its obligations thereunder,  (ii) represents and
warrants that there exists no Default or Event of Default,  and (iii) represents
and  warrants  that the  representations  and  warranties  contained in the Loan
Documents, including the Credit Agreement as amended by this Amendment, are true
and correct in all material respects on and as of the date hereof, except to the
extent  that  such  representations  and  warranties  specifically  relate to an
earlier date, in which case such  representations  and  warranties  are true and
correct on and as of such earlier date.

      13. This Amendment may be executed in any number of counterparts,  each of
which shall be an original and all of which shall  constitute one agreement.  It
shall not be necessary  in making proof of this  Amendment to produce or account
for more than one counterpart signed by the party to be charged.

      14. This  Amendment is being  delivered in and is intended to be performed
in the State of New York and shall be construed  and  enforceable  in accordance
with,  and be governed  by, the  internal  laws of the State of New York without
regard to principles of conflict of laws.

      15.  Except as amended  hereby,  the Credit  Agreement  shall in all other
respects remain in full force and effect.

                  [Remainder of page intentionally left blank.]



                                       4
<PAGE>

                             AMENDMENT NO. 2 TO THE
                   THIRD AMENDED AND RESTATED CREDIT AGREEMENT



      AMENDMENT NO. 2 (this "Amendment"), dated as of August 15, 2000, under the
Third Amended and Restated Credit Agreement,  dated as of March 23, 2000, by and
among Arch Paging, Inc. (the "Borrower"), the Lenders party thereto, The Bank of
New York, Royal Bank of Canada, Toronto Dominion (Texas), Inc. and Barclays Bank
PLC, as Managing Agents, Royal Bank of Canada, as Documentation Agent,  Barclays
Bank PLC and Fleet National Bank, as Co-Documentation  Agents,  Toronto Dominion
(Texas), Inc., as Syndication Agent, and The Bank of New York, as Administrative
Agent,  as amended by Amendment  No. 1, dated as of May 19, 2000 (as so amended,
the "Credit Agreement").


                                    RECITALS


      A.  Capitalized  terms used herein which are not defined herein shall have
the  respective  meanings  ascribed  thereto in the Credit  Agreement as amended
hereby.

      B. The  Borrower  has  requested  that  certain  provisions  of the Credit
Agreement  be amended as set forth  below and the  Administrative  Agent and the
Lenders  signing  below are  willing to agree  thereto  subject to the terms and
conditions hereinafter set forth.

      Accordingly,   in   consideration  of  the  Recitals  and  the  covenants,
conditions and agreements hereinafter set forth, and for other good and valuable
consideration,  the receipt and adequacy of which are hereby  acknowledged,  the
parties hereto agree as follows:

      1. The  definition of "Merger  Agreement"  contained in Section 1.1 of the
Credit Agreement is amended in its entirety to read as follows:

            "Merger Agreement":  the Agreement and Plan of Merger,  dated
      as of  November 7, 1999,  by and among the  Parent,  Merger Sub and
      PageNet,  as  amended  by  Amendment  No. 1, dated as of January 7,
      2000,  Amendment No. 2, dated as of May 10, 2000, and Amendment No.
      3, dated as of July 24, 2000.

      2. Section  8.3(iv)(Z)(4)  is amended by substituting  "December 31, 2000"
for "September 30, 2000" therein.

      3.  Paragraphs 1 through 2 of this Amendment  shall not be effective until
the  prior  or  simultaneous   fulfillment  of  the  following  conditions  (the
"Amendment Effective Date"):

            (a) The  Administrative  Agent shall have received  this  Amendment,
      duly  executed by a duly  authorized  officer or officers of the Borrower,
      the Parent, the Subsidiary Guarantors and Required Lenders.

            (b)  The  Administrative   Agent  shall  have  received  such  other
      documents as it shall reasonably request.


<PAGE>

      4. Each Loan Party  hereby (i)  reaffirms  and  admits  the  validity  and
enforceability  of the Credit  Agreement (as amended by this  Amendment) and the
other Loan Documents and all of its obligations thereunder,  (ii) represents and
warrants that there exists no Default or Event of Default,  and (iii) represents
and  warrants  that the  representations  and  warranties  contained in the Loan
Documents, including the Credit Agreement as amended by this Amendment, are true
and correct in all material respects on and as of the date hereof, except to the
extent  that  such  representations  and  warranties  specifically  relate to an
earlier date, in which case such  representations  and  warranties  are true and
correct on and as of such earlier date.

      5. The Borrower has provided to each Lender a copy of Amendment Nos. 2 and
3 to the Merger  Agreement.  Each Lender which executes this Amendment  shall be
deemed to have approved such amendments.

      6. This Amendment may be executed in any number of  counterparts,  each of
which shall be an original and all of which shall  constitute one agreement.  It
shall not be necessary  in making proof of this  Amendment to produce or account
for more than one counterpart signed by the party to be charged.

      7. This Amendment is being delivered in and is intended to be performed in
the State of New York and shall be construed and enforceable in accordance with,
and be governed by, the internal laws of the State of New York without regard to
principles of conflict of laws.

      8.  Except as  amended  hereby,  the Credit  Agreement  shall in all other
respects remain in full force and effect.

                  [Remainder of page intentionally left blank.]


                                       2
<PAGE>

                             AMENDMENT NO. 3 TO THE
                   THIRD AMENDED AND RESTATED CREDIT AGREEMENT

      AMENDMENT NO. 3 (this  "Amendment"),  dated as of October 20, 2000,  under
the Third Amended and Restated Credit Agreement,  dated as of March 23, 2000, by
and among  Arch  Wireless  Holdings,  Inc.  (formerly,  Arch  Paging,  Inc.  and
hereinafter referred to as the "Borrower"),  the Lenders party thereto, The Bank
of New York, Royal Bank of Canada,  Toronto Dominion (Texas),  Inc. and Barclays
Bank PLC, as Managing  Agents,  Royal Bank of Canada,  as  Documentation  Agent,
Barclays Bank PLC and Fleet National Bank, as Co-Documentation  Agents,  Toronto
Dominion  (Texas),  Inc.,  as  Syndication  Agent,  and The Bank of New York, as
Administrative  Agent,  as amended by Amendment No. 1, dated as of May 19, 2000,
and  Amendment  No. 2, dated as of August 15, 2000 (as so  amended,  the "Credit
Agreement").


                                    RECITALS


      A.  Capitalized  terms used herein which are not defined herein shall have
the  respective  meanings  ascribed  thereto in the Credit  Agreement as amended
hereby.

      B. The  Borrower  has  requested  that  certain  provisions  of the Credit
Agreement  be amended as set forth  below and the  Administrative  Agent and the
Lenders  signing  below are  willing to agree  thereto  subject to the terms and
conditions hereinafter set forth.

      Accordingly,   in   consideration  of  the  Recitals  and  the  covenants,
conditions and agreements hereinafter set forth, and for other good and valuable
consideration,  the receipt and adequacy of which are hereby  acknowledged,  the
parties hereto agree as follows:

      1. The definition of "Appropriate  Party"  contained in Section 1.1 of the
Credit Agreement is amended in its entirety to read as follows:

                  "Appropriate Party": at any time:

                  (a)  at  all  times  with   respect  to  Existing   API
            Collateral  and  Existing   PageNet   Collateral,   the  Bank
            Collateral Agent;

                  (b) with respect to  Collateral  other than to Existing
            API Collateral and Existing PageNet Collateral:

                     (i) from  and after the  Third Restatement Date  and
            prior to the  earlier to  occur of the Merger  Effective Date
            and the  Existing Arch  Senior Note  Termination Date, (x) if
            the  Springing  Sections  of the  Security  and Intercreditor
            Agreement are not then effective, the Escrow Agent, or (y) if
            the  Springing  Sections of the  Security  and  Intercreditor
            Agreement are then effective, the Security Agent, and


<PAGE>

                     (ii) on and after the earlier to occur of the Merger
            Effective Date and the Existing Arch Senior Note  Termination
            Date, the Security Agent.

      2. Clause (ii) of the  definition of "Collateral  Documents"  contained in
Section  1.1 of the  Credit  Agreement  is amended  in its  entirety  to read as
follows:

            (ii) on and after the Merger Effective Date, (x) the Borrower
      Pledge Agreement,  the Subsidiary Guaranty,  the Arch Guaranty, the
      Parent  Guaranty,  the  Parent  Pledge  Agreement,  the  Restricted
      Subsidiary  Security  Agreement,  the  Amended  PageNet  Collateral
      Documents,  the Security and Intercreditor  Agreement,  the PageNet
      Canada Holdings  Guaranty,  the PageNet Canada Security  Agreement,
      the  PageNet  SMR  Sub  Guaranty,  the  PageNet  SMR  Sub  Security
      Agreement,  each  Secured  Hedging  Agreement,  and the  Powers  of
      Attorney,  (y) on and after the execution and delivery thereof, the
      PageNet  Canadian  Subsidiary  Guaranty  and the  PageNet  Canadian
      Subsidiary  Security  Agreement,  and (z) all other instruments and
      documents  delivered pursuant to Section 7.18 or 7.19 to secure any
      of the Obligations.

      3. The definition of "Final Order"  contained in Section 1.1 of the Credit
Agreement is amended in its entirety to read as follows:

            "Final  Order":  as to any  court,  administrative  agency or
      other tribunal, an order or judgment of such tribunal as entered on
      its docket,  which order or judgment  shall not have been reversed,
      stayed, enjoined,  annulled or suspended and the time for filing an
      appeal, petition for certiorari or other request for administrative
      or  judicial  relief  or,  in the case of an order of the FCC,  for
      instituting  administrative  review of such order sua  sponte,  has
      expired and as to which no appeal, petition for certiorari or other
      formal  request for  administrative  or judicial  relief or, in the
      case of an order of the FCC, for instituting  administrative review
      of such order sua sponte,  has been timely filed and is pending or,
      if  an  appeal,  petition  for  certiorari  or  other  request  for
      administrative  or  judicial  relief or, in the case of an order of
      the FCC, for  instituting  administrative  review of such order sua
      sponte,  has been timely  filed or taken,  the order or judgment of
      such  court,  administrative  agency  or  other  tribunal  has been
      affirmed   (or  such   appeal,   petition  or  other   request  for
      administrative  or judicial  relief has been  dismissed as moot) by
      the highest court (or other tribunal having appellate  jurisdiction
      over the order or  judgment) to which the order was appealed or the
      petition for certiorari has been denied or, in the case of an order

<PAGE>

      of the FCC which the FCC decided to review sua sponte,  the FCC has
      either withdrawn or dismissed such review, and the time to take any
      further  appeal  or to  seek  further  certiorari  or  judicial  or
      administrative review has expired.

      4.  Clause  (ii)(b) of the  definition  of "Fixed  Charges"  contained  in
Section 1.1 of the Credit Agreement is amended by substituting  "Section 2.4(a),
2.4(c),  2.4(d),  2.4(e) or  2.4(f)"  for  "Section  2.4(a),  2.4(c) or  2.4(d)"
therein.

      5. The definition of "Guarantor  Obligations"  contained in Section 1.1 of
the Credit Agreement is amended in its entirety to read as follows:

            "Guarantor  Obligations":  with respect to (i) the Parent, as
      defined in the Parent  Guaranty,  (ii) Arch, as defined in the Arch
      Guaranty,  (iii) each of the Subsidiary  Guarantors,  as defined in
      the Subsidiary Guaranty,  (iv) PageNet Canada Holdings,  as defined
      in the  PageNet  Canada  Holdings  Guaranty,  (v) with  respect  to
      PageNet SMR Sub, as defined in the  PageNet SMR Sub  Guaranty,  and
      (vi) each of the PageNet Canadian Subsidiaries party to the PageNet
      Canadian  Subsidiary  Guaranty,  as defined in the PageNet Canadian
      Subsidiary Guaranty.

      6. The definition of  "Guarantors"  contained in Section 1.1 of the Credit
Agreement is amended in its entirety to read as follows:

            "Guarantors":  collectively, (i) the Parent, (ii) Arch, (iii)
      the Subsidiary  Guarantors,  (iv) on and after the Merger Effective
      Date,  PageNet Canada  Holdings and PageNet SMR Sub, and (v) on and
      after the execution and delivery of the PageNet Canadian Subsidiary
      Guaranty at the time required by the Parent Guaranty,  each PageNet
      Canadian Subsidiary party thereto.

      7. The last sentence of the definition of "Operating  Cash Flow" contained
in Section  1.1 of the Credit  Agreement  is amended in its  entirety to read as
follows:

            Solely for purposes of (i) calculating the API Leverage Ratio
      and the Total Leverage  Ratio,  Operating Cash Flow of the Borrower
      shall  be  adjusted  on a  consistent  basis  satisfactory  to  the
      Administrative  Agent to give pro-forma  effect to any acquisition,
      sale,   exchange  or  disposition  of  Property  and  (ii)  Section
      8.3(iv)(I),  Operating  Cash Flow of PageNet  and its  Subsidiaries
      shall be adjusted in a manner  satisfactory  to the  Administrative
      Agent to give  effect to the cost  savings  to be  realized  on the
      Merger Effective Date or within three months  thereafter in respect
      of employee and lease  terminations and merger related costs, as if

<PAGE>

      such cost  savings  were  realized  during the three  month  period
      immediately preceding the Merger Effective Date for which financial
      statements are available.

      8. The  definition of "Pagers in Service"  contained in Section 1.1 of the
Credit Agreement is amended in its entirety to read as follows:

            "Pagers  in  Service":  at any  time,  units  in  service  as
      determined  under  the  methodology  used  by  the  Parent  in  its
      financial statements as of the Third Restatement Date.

      9. The definition of "PageNet Merger  Documents"  contained in Section 1.1
of the Credit Agreement is amended in its entirety to read as follows.

            "PageNet  Merger  Documents":  collectively,  (i) the  Merger
      Agreement,  (ii) the PageNet  Subsidiary Merger Documents and (iii)
      all other  documents  executed and delivered in connection with the
      PageNet Merger,  each PageNet Subsidiary Merger, the PageNet Canada
      Holdings Spin-Off,  the PageNet SMR Sub Contribution,  the Spin-Off
      and the Dropdown.

      10.  The  following  definitions  are added to  Section  1.1 of the Credit
Agreement in their appropriate alphabetical order:

            "Amendment  No. 3":  Amendment No. 3, dated as of October 20,
      2000, to this Agreement.

            "PageNet  Canada  Holdings  Guaranty":   the  PageNet  Canada
      Holdings   Guaranty,   made  by  PageNet  Canada  Holdings  to  the
      Collateral  Agent,  in  form  and  substance  satisfactory  to  the
      Managing Agents.

            "PageNet Canada  Holdings  Security  Agreement":  the PageNet
      Canada Holdings Security Agreement, made by PageNet Canada Holdings
      to the Collateral Agent, in form and substance  satisfactory to the
      Managing Agents.

            "PageNet  Canada  Holdings  Spin-Off":  the  distribution  by
      PageNet to the Parent,  immediately after the Merger Effective Time
      and  immediately  prior to the Dropdown,  of 100% of the issued and
      outstanding  Stock of each of PageNet  Canada  Holdings and PageNet
      SMR Sub.

            "PageNet Canadian Subsidiary Guaranty":  the PageNet Canadian
      Subsidiary Guaranty, made by each PageNet Canadian Subsidiary party

<PAGE>

      thereto to the Administrative  Agent,  substantially in the form of
      the  Subsidiary  Guaranty  with  such  changes  thereto  as  may be
      necessary to reflect appropriate provisions of local law and as are
      satisfactory to the Managing Agents.

            "PageNet Canadian Subsidiary Security Agreement": the PageNet
      Canadian  Subsidiary  Security  Agreement,  made  by  each  PageNet
      Canadian  Subsidiary  party  thereto to the  Administrative  Agent,
      substantially  in the form of the  Subsidiary  Guaranty  with  such
      changes  thereto  as  may  be  necessary  to  reflect   appropriate
      provisions  of local law and as are  satisfactory  to the  Managing
      Agents.

            "PageNet  SMR  Sub":  PageNet  SMR  Corporation,  a  Delaware
      corporation and a newly created wholly-owned Subsidiary of PageNet.

            "PageNet SMR Sub Contribution": the contribution, on or after
      the Merger Effective Date and immediately prior to the Dropdown, by
      PageNet and/or one or more of its  Subsidiaries  to PageNet SMR Sub
      of (i)  certain  of the SMR  Spectrum  licenses  issued to  PageNet
      and/or  one or more of its  Subsidiaries  and (ii) an amount not in
      excess of  $3,250,000  to enable  PageNet  SMR Sub to  perform  its
      obligations  to lend such amount to the  Distributed  Subsidiary in
      accordance with the Plan of Reorganization.

            "PageNet  SMR Sub  Guaranty":  the PageNet SMR Sub  Guaranty,
      made  by  PageNet  SMR Sub to the  Collateral  Agent,  in form  and
      substance satisfactory to the Managing Agents.

            "PageNet  SMR Sub  Security  Agreement":  the PageNet SMR Sub
      Security  Agreement,  made by  PageNet  SMR  Sub to the  Collateral
      Agent, in form and substance satisfactory to the Managing Agents.

            "Parent Pledge Agreement":  the Pledge Agreement, made by the
      Parent to the Collateral Agent, in form and substance  satisfactory
      to the Managing Agents.

      11.  Section 2.4 of the Credit  Agreement  is amended by deleting the word
"and" at the end of  subsection  (c) thereof,  by  substituting  a comma for the
period at the end of subsection  (d) thereof and by adding new  subsections  (e)
and (f) to the end thereof to read as follows:

               (e) on  the  date of the  receipt by the  Borrower of  any
      equity  contribution  made directly or indirectly  by the Parent as

<PAGE>

      required by the Parent  Guaranty in connection with the sale of the
      Stock or assets of the PageNet Canadian Subsidiaries,  in an amount
      equal to 100% thereof; and

               (f) on the first anniversary of the Merger Effective Date,
      in an amount equal to $110,000,000.

      12. Section  2.5(e) of the Credit  Agreement is amended in its entirety to
read as follows:

            (e)  Application  of  Prepayments.  Each  prepayment  of  the
      Tranche B Loans,  Tranche B-1 Loans and Tranche C Loans pursuant to
      Sections  2.4(a),  (b),  (c),  (d), (e) and (f) and 2.5(b) shall be
      applied against the remaining installments of principal required to
      be paid pursuant to Section  2.5(a)(i),  2.5(a)(ii) or 2.5(a)(iii),
      as applicable, pro rata against such installments.

      13.  Section  7.18(b) of the Credit  Agreement  is amended by deleting the
phrase  "(other  than any  PageNet  Canadian  Subsidiary  so long as the PageNet
Canadian Loan Documents to which it is a party are in effect)".

      14. Section 8.1(ix) of the Credit  Agreement is amended in its entirety to
read "Intentionally Omitted".

      15. Section 8.2(vi) of the Credit  Agreement is amended in its entirety to
read "Intentionally Omitted".

      16.  Section  8.3(iv)(E) of the Credit  Agreement is amended by (i) adding
the phrase "at the time of the Dropdown"  immediately  after the first reference
therein  to  "PageNet  and each of its  Subsidiaries"  and before  "(other  than
Non-Material  Foreign  Subsidiaries)," and (ii) deleting the phrase "(other than
any PageNet  Canadian  Subsidiary so long as the PageNet Canadian Loan Documents
to which it is a party are in effect)" in clause (i) thereof.

      17. Section  8.3(iv)(F) of the Credit Agreement is amended in its entirety
to read as follows:

            (F) Replacement  Schedules.  The  Administrative  Agent shall
      have received  replacement  Schedules 4.1, 8.1, 8.2 and 8.6 to this
      Agreement and Schedule 4(a) to the Arch Guaranty,  each in form and
      substance satisfactory to the Administrative Agent.

      18. Section 8.3(iv)(I) of the Credit Agreement is amended by replacing the
phrase "the three month period  ending on the Merger  Effective  Date (or if the
Merger  Effective  Date is not the  last  day of a  month,  for the  immediately

<PAGE>

preceding  three month period)"  appearing in clauses (I)(1) and (I)(2)(ii) with
the phrase "the three month period  immediately  preceding the Merger  Effective
Date for which financial statements are available".

      19. Section  8.3(iv)(M) of the Credit Agreement is amended by substituting
"$50,000,000" for "$85,000,000" therein.

      20. Section  8.3(iv)(T) of the Credit Agreement is amended in its entirety
to read as follows:

            (T) FCC Order. The Administrative Agent shall have received a
      copy of a Final Order of the FCC,  certified to be true and correct
      by an officer of the Borrower, approving the transfer of control of
      such of PageNet and its Subsidiaries which hold FCC licenses to the
      Parent or any of its  Subsidiaries,  it being understood and agreed
      that the order of the FCC dated  April 25,  2000 shall be deemed to
      be a Final Order  notwithstanding  the filing of the  Petition  for
      Reconsideration or Informal Complaint by Metrocall on September 12,
      2000,  provided that the opinion of FCC counsel delivered  pursuant
      to Section  8.3(iv)(EE)  contains an opinion, in form and substance
      satisfactory to the Managing Agents,  that should the FCC determine
      that such  Informal  Complaint  has  merit,  the FCC would  have no
      authority,  as a matter of law,  to  rescind  or  modify  its order
      approving  the transfer of control of PageNet and its  Subsidiaries
      as  contemplated  by the  PageNet  Merger  Documents  and  that any
      possible  sanctions which the FCC may impose in such  circumstances
      would not have a Material  Adverse  Effect had they been imposed on
      the Merger Effective Date.

      21. Section  8.3(iv)(U) of the Credit Agreement is amended in its entirety
to read as follows:

            (U) Consents  under  PageNet  Canadian  Loan  Documents.  The
      Administrative  Agent shall have  received,  in form and  substance
      satisfactory to the Managing Agents,  such  amendments,  waivers or
      consents to the  Transactions  from the  lenders  under the PageNet
      Canadian Loan Documents.

      22. Section 8.3(iv)(CC) of the Credit Agreement is amended in its entirety
to read as follows:

            (CC)  PageNet  SMR  Contribution;   PageNet  Canada  Holdings
      Spin-Off;  Spin-Off. Each of the PageNet SMR Contribution;  PageNet
      Canada Holdings Spin-Off and Spin-Off shall have occurred.


<PAGE>

      23.  Section  8.3(iv) of the Credit  Agreement is amended by  re-lettering
subsection "(HH)" as "(MM)" and by adding new subsections (HH), (II), (JJ), (KK)
and (LL) to read as follows:

            (HH) Parent  Guaranty.  The  Administrative  Agent shall have
      received  an  amendment  and  restatement  of the Parent  Guaranty,
      substantially  in the  form of Annex A to  Amendment  No.  3,  duly
      executed by an authorized officer of the Parent.

            (II) Parent Pledge Agreement.  The Administrative Agent shall
      have  received the Parent  Pledge  Agreement,  duly  executed by an
      authorized officer of the Parent,  together with stock certificates
      representing  all of the issued and outstanding  shares of Stock of
      PageNet  Canada  Holdings  and PageNet SMR Sub and stock powers and
      instruments  of transfer,  endorsed in blank,  with respect to such
      stock certificates.

            (JJ)  PageNet  Canada  Holdings   Guaranty;   PageNet  Canada
      Holdings Security  Agreement.  The Administrative  Agent shall have
      received  the  PageNet  Canada  Holdings  Guaranty  and the PageNet
      Canada Holdings Security Agreement,  duly executed by an authorized
      officer of PageNet Canada Holdings.

            (KK)  PageNet  SMR  Sub  Contribution.  The  PageNet  SMR Sub
      Contribution  shall have been made and all  approvals  and consents
      necessary to consummate the same shall have been received and shall
      be in full force and  effect,  and the  Administrative  Agent shall
      have received a  certificate  of an officer of the Borrower to such
      effect.

            (LL)  PageNet  SMR Sub  Guaranty;  PageNet  SMR Sub  Security
      Agreement. The Administrative Agent shall have received the PageNet
      SMR Sub Guaranty and the PageNet SMR Sub Security  Agreement,  duly
      executed by an authorized officer of PageNet SMR Sub.

      24. Section  8.6(i) of the Credit  Agreement is amended in its entirety to
read as follows:

            (i)  Investments   consisting  of  the  Intercompany   Notes,
      provided,  however,  that  no  such  Investment  may be made by the
      Borrower  or any  of  its  Subsidiaries  in  any  PageNet  Canadian
      Subsidiary  until  such time as such  PageNet  Canadian  Subsidiary
      shall have  executed  and  delivered  to the  Collateral  Agent the
      PageNet  Canadian  Subsidiary  Guaranty  and the  PageNet  Canadian

<PAGE>

      Subsidiary Security Agreement and the Collateral Agent shall have a
      perfected first priority security interest in its assets;

      25. Section  9.1(d) of the Credit  Agreement is amended in its entirety to
read as follows:

            (d) The  failure of any Loan Party to observe or perform  any
      covenant or agreement  contained  in Sections  7.2(f),  7.3,  7.11,
      7.12, 7.13, 7.14, 7.15, 7.16, 7.17, 7.18, 7.19 or 7.20 or Article 8
      of this Agreement, Section 2 of the Subsidiary Guaranty, Section 2,
      8(c), 8(k),  8(l), 8(m), 8(n) or 9 of the Parent Guaranty,  Section
      2, 5(c), 5(k),  5(l), 5(m) or 6 of the Arch Guaranty,  Section 2 of
      the PageNet Canada Holdings  Guaranty,  or Section 2 of the PageNet
      SMR Sub Guaranty; or

      26. Paragraphs 1 through 25 of this Amendment shall not be effective until
the  prior  or  simultaneous   fulfillment  of  the  following  conditions  (the
"Amendment Effective Date"):

         (a) The Administrative  Agent shall have received this Amendment,  duly
executed by a duly authorized  officer or officers of the Borrower,  the Parent,
Arch, the Subsidiary Guarantors and Required Lenders.

         (b) The  Administrative  Agent shall have received a certificate of the
Secretary or Assistant  Secretary of each of the Borrower,  the Parent, Arch and
the  Subsidiary  Guarantors:  (i)  attaching  a true  and  complete  copy of the
resolutions  of its  Managing  Person  authorizing  this  Amendment  in form and
substance  satisfactory to the  Administrative  Agent,  (ii) certifying that its
certificate of  incorporation  and by-laws have not been amended since March 23,
2000,  or, if so,  setting forth the same and (iii) setting forth the incumbency
of its  officer or officers  who may sign this  Amendment,  including  therein a
signature specimen of such officer or officers.

         (c) The Administrative  Agent shall have received an opinion of counsel
to the Borrower, in form and substance satisfactory to the Managing Agents.

         (d) The representations and warranties  contained in the Loan Documents
shall be true and correct in all  material  respects  (except to the extent such
representations  and warranties  specifically  relate to an earlier date) and no
Default or Event of Default shall exist, and the Administrative Agent shall have
received  a  certificate  of an  officer of the  Borrower,  dated the  Amendment
Effective Date, certifying to such effect.

         (e) The  Administrative  Agent shall have received such other documents
as it shall reasonably request.

      27.  Each Loan Party  hereby (i)  reaffirms  and admits the  validity  and
enforceability  of the Credit  Agreement (as amended by this  Amendment) and the
other Loan Documents and all of its obligations thereunder,  (ii) represents and
warrants that there exists no Default or Event of Default,  and (iii) represents
and  warrants  that the  representations  and  warranties  contained in the Loan

<PAGE>

Documents, including the Credit Agreement as amended by this Amendment, are true
and correct in all material respects on and as of the date hereof, except to the
extent  that  such  representations  and  warranties  specifically  relate to an
earlier date, in which case such  representations  and  warranties  are true and
correct on and as of such earlier date.

      28. This Amendment may be executed in any number of counterparts,  each of
which shall be an original and all of which shall  constitute one agreement.  It
shall not be necessary  in making proof of this  Amendment to produce or account
for more than one counterpart signed by the party to be charged.

      29. This  Amendment is being  delivered in and is intended to be performed
in the State of New York and shall be construed  and  enforceable  in accordance
with,  and be governed  by, the  internal  laws of the State of New York without
regard to principles of conflict of laws.

      30.  Except as amended  hereby,  the Credit  Agreement  shall in all other
respects remain in full force and effect.

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