<PAGE>

                                                                   Exhibit 10.11

                      INTERCARRIER ROAMER SERVICE AGREEMENT

     THIS AGREEMENT dated as of the 16th day of September, 2000, is by and
between BellSouth Cellular National Marketing Inc., sometimes referred to as
"BSCNM", and Dobson Cellular Systems, Inc. as owner and/or manager of the
markets listed on Exhibit A, sometimes referred to as "Dobson", on behalf of
those general and limited partnerships set forth in Appendix I, attached hereto
and hereby incorporated herein.

The partnerships listed in Appendix I as the "BSCNM Licensees and Permittees"
are herein referred to as the "BSCNM Parties," or "BSCNM". The partnerships
listed in Appendix I as the "Dobson Licensees and Permittees" are herein
referred to as the "Dobson Parties" or "Dobson".


                                     RECITAL

     WHEREAS, the Parties desire to make arrangements to facilitate the
provisions of commercial mobile radio service to Roamers in accordance with the
"General Terms and Conditions of Roaming," attached hereto as Appendix II and
"Operating Procedures," attached hereto as Appendix III (Appendix II and
Appendix III are hereby incorporated herein and such Appendices and all
attachments here to are referred to as the "General Terms").

     NOW, THEREFORE, in consideration of the mutual promises herein set forth
and intending to be legally bound hereby, the Parties do hereby agree as
follows:


                                                                               1
<PAGE>

                                MUTUAL AGREEMENT

     1.   Under the conditions set forth herein, the Parties agree to be bound
by the General Terms attached hereto, as they may be properly amended from time
to time.

     2.   The Home Carrier shall be liable to the Serving Carrier in accordance
with Paragraph 2.1 of Appendix II for all of the service and pass-through
charges for all calls chargeable to the Home Carrier's customers (including the
customers of its resellers) and invoiced by the Serving Carrier to the Home
Carrier as specified in Appendix II.

     3.   In the event that roaming becomes technically or administratively
impracticable on any Party's system(s) or if an unacceptable level of
unauthorized use occurs, either Party may suspend this Agreement, pursuant to
Paragraph 4.2 and Section VI of Appendix II by written notice to the other. In
such event, the Home Carrier will notify its customers no later than the next
bill of the suspension of service. In the event that such notice is required,
the Home Carrier shall consult with the Serving Carrier regarding the content of
such notice and incorporate all reasonable suggestions made by the Serving
Carrier with respect to such notice. In addition, the Serving Carrier, when
communicating with the customers of the Home Carrier, will use an explanation
for the suspension of service mutually agreed upon. In the specific event that
the impracticability of service is caused by the testing or commercial service
of a carrier other than the Serving Carrier operating in the area served by the
Serving Carrier and where the Serving Carrier is not, in any respect,
responsible for the impracticability, the Home Carrier may include with its
notice to its customer the-following statement:



                                                                               2
<PAGE>

                                    "NOTICE"

     Previously you have been able to obtain service as a roamer on BSCNM's
system. Presently, you may experience difficulty in using your service. This is
because (INTERFERING CARRIER) is now [testing/operating] its commercial mobile
radio system, and the difficulty is not the fault of BellSouth Cellular National
Marketing Inc.

     4.   The notices referred to in Paragraph 10.1 of Appendix II should be
sent to:

                           BellSouth Cellular National Marketing Inc.
                           Manager of Intercarrier Services
                           5600 Glenridge Drive, Suite G425
                           Atlanta, Georgia 30342

         And               Dobson Cellular Systems, Inc.
                           Attn: Intercarrier Service Dept.
                           13439 N Broadway Ext., Suite 100
                           Oklahoma City, OK 73114

Notices given pursuant to Article VI and VII of Appendix II should be sent to:

                           BellSouth Cellular National Marketing Inc.
                           Manager of Intercarrier Services
                           5600 Glenridge Drive, Suite G425
                           Atlanta, Georgia 30342

         And               Dobson Cellular Systems, Inc.
                           Attn: Intercarrier Service Dept.
                           13439 N Broadway Ext., Suite 100
                           Oklahoma City, OK 73114



                                                                               3
<PAGE>

     5.   The Parties each hereby represent and warrant that (a) they have been
authorized to enter into this Agreement. Each of the Parties, respectively, is a
Licensee or Permittee of the Domestic Public Commercial Mobile Radio
Telecommunications System(s) and Station(s)shown on the attached Appendix I
serving the area(s) referred to therein or is authorized to enter into this
Agreement on behalf of each such Licensee or Permittee. The Parties may from
time to time hereafter seek to amend Appendix I of this Agreement to add and/or
delete a Licensee or Permittee of a Domestic Public Commercial Mobile Radio
Telecommunication System(s) and Station(s). The parties upon written notice to
the other and with the consent of the other (which consent shall not be
unreasonably withheld), in which event this Agreement shall become effective
between such additional Party or Parties and all the existing Parties hereto,
less any such deleted Party or Parties, as of the date set forth in an agreed
upon amended Appendix I.

     6.   In the event that at least one of the Parties is a non - United States
Commercial Mobile Radio Carrier, then Appendix IV (Foreign Commercial Mobile
Radio Carrier) shall be attached hereto and made a part of this Agreement.

     IN WITNESS WHEREOF, the undersigned have duly executed this Agreement. The
effective date is entered on Page 1, first Paragraph.


BELLSOUTH CELLULAR NATIONAL MARKETING INC.   Dobson Cellular Systems, Inc.

By:   Pat T. Bows                            By:   Ronald L. Ripley
   ----------------------------------           -------------------------------

Title: Director of Wholesale [ILLEGIBLE]     Title:  Vice President
      -------------------------------              ----------------------------

Date:      9/6/00                            Date:  August 28, 2000
     ---------------------------                  -----------------------------



                                                                               4
<PAGE>

Effective Date of Appendix I:                      , 2000
                              ---------------------
Page 1

                                   APPENDIX I
                                       TO
                      INTERCARRIER ROAMER SERVICE AGREEMENT
                                     BETWEEN
               BELLSOUTH CELLULAR NATIONAL MARKETING INC. (BSCNM)
                                       AND
                     DOBSON CELLULAR SYSTEMS, INC. (DOBSON)


SYSTEM      STATION     SERVICE     VERIF.     TALK/       BATCH/
COVERED     SID/BID      AREA       TYPE       LISTEN     REAL-TIME
-------     -------      ----       ----       ------     ---------


SEE ATTACHMENT B FOR A LISTING OF ALL BELLSOUTH SIDS COVERED BY THIS AGREEMENT
AT EXECUTION.

PLEASE COMPLETE THIS SECTION FOR YOUR COMPANY LISTING ALL SIDS/BIDS COVERED BY
THIS AGREEMENT OR ATTACH A LISTING IN A FORMAT OF YOUR CHOICE.





                                                                               5
<PAGE>

EXHIBIT A: DOBSON CELLULAR SYSTEMS, INC.
MARKETS INCLUDED

<TABLE>
<CAPTION>
SID        CITY                     STATE    MSA/RSA                   MARKET OWNER
---        ----                     -----    -------                   ------------
<S>        <C>                       <C>     <C>               <C>
1592       Cheyenne                  OK      RSA 5 & 7         Dobson Cellular Systems, Inc.
30382      Borger                    TX      TX 2              Dobson Cellular Systems, Inc.
1072       Imperial Valley           CA      RSA 7             Dobson Cellular Systems, Inc. d/b/a AirTouch
1559       Sandusky                  OH      RSA 2             Dobson Cellular Systems, Inc. d/b/a AirTouch
341        Enid                      OK      MSA               Dobson Cellular Systems, Inc. d/b/a CellularOne
1017       Fairbanks                 AK      RSA 1             Dobson Cellular Systems, Inc. d/b/a CellularOne
1023       Kingman                   Az      RsA 1             Dobson Cellular Systems, Inc. d/b/a CellularOne
1065       Merced                    CA      RSA 4             Dobson Cellular Systems, Inc. d/b/a CellularOne
1251       Leavenworth               KS      RSA 5             Dobson Cellular Systems, Inc. d/b/a CellularOne
1321       Deep Creek                MD      RSA 1             Dobson Cellular Systems, Inc. d/b/a CellularOne
1325       Frederick                 MD      RSA 3             Dobson Cellular Systems, Inc. d/b/a CellularOne
1335       Traverse City             MI      RSA 3             Dobson Cellular Systems, Inc. d/b/a CellularOne
1349       Caro                      MI      RSA 10            Dobson Cellular Systems, Inc. d/b/a CellularOne
1395       Maryville                 MO      RSA 1             Dobson Cellular Systems, Inc. d/b/a CellularOne
1401       Cameron                   MO      RSA 4             Dobson Cellular Systems, Inc. d/b/a CellularOne
1401       Linn County               MO      RSA 5             Dobson Cellular Systems, Inc. d/b/a CellularOne
1707       Brownwood                 TX      RSA 9             Dobson Cellular Systems, Inc. d/b/a CellularOne
1709       Corsicana                 TX      RsA 10            Dobson Cellular Systems, Inc. d/b/a CellularOne
1721       El Campo                  TX      RSA 16            Dobson Cellular Systems, Inc. d/b/a CellularOne
1971       Juneau                    AK      RSA 3             Dobson Cellular Systems, Inc. d/b/a CellularOne
26319      Eastern Shore             MD      RSA 2             Dobson Cellular Systems, Inc. d/b/a CellularOne
30247      Madera                    CA      RSA 4             Dobson Cellular Systems, Inc. d/b/a CellularOne
30337      Woodward                  OK      RSA 2             Dobson Cellular Systems, Inc. d/b/a CellularOne
30879      San Benito                CA      RSA 4             Dobson Cellular Systems, Inc. d/b/a CellularOne
30891      Hagerstown                MD      MSA               Dobson Cellular Systems, Inc. d/b/a CellularOne
30893      Cumberland                MD      MSA               Dobson Cellular Systems, Inc. d/b/a CellularOne
30895      Bedford                   PA      RSA 10W           Dobson Cellular Systems, Inc. d/b/a CellularOne
30953      Cameron                   TX      RSA 10            Dobson Cellular Systems, Inc. d/b/a CellularOne
30969      Marble Falls              TX      RSA 10            Dobson Cellular Systems, Inc. d/b/a CellularOne
31045      Sitka                     AK      RSA 3             Dobson Cellular Systems, Inc. d/b/a CellularOne
31047      Ketchikan                 AK      RSA 3             Dobson Cellular Systems, Inc. d/b/a CellularOne
1032       Casa Grande               Az      RSA 5             Gila River Cellular General Partnership d/b/a AirTouch
30017      Santa Cruz                CA      MSA               Santa Cruz Cellular Telephone, Inc. d/b/a CellularOne
89         Youngstown                OH      MSA               Sygnet Communications, Inc. d/b/a CellularOne
1509       Jamestown                 NY      RSA 3             Sygnet Communications, Inc. d/b/a CellularOne
1611       Meadville                 PA      RSA 1             Sygnet Communications, Inc. d/b/a CellularOne
1621       Lawrence                  PA      RSA 6             Sygnet Communications, Inc. d/b/a CellularOne
1623       Indiana                   PA      RSA 7             Sygnet Communications, Inc. d/b/a CellularOne
30067      Erie                      PA      MSA               Sygnet Communications, Inc. d/b/a CellularOne
30303      Butler                    PA      RSA 6             Sygnet Communications, Inc. d/b/a CellularOne
30395      Sharon                    PA      MSA               Sygnet Communications, Inc. d/b/a CellularOne
30397      Poland                    OH      MSA               Sygnet Communications, Inc. d/b/a CellularOne
30421      East Liverpool            OH      RSA 11            Sygnet Communications, Inc. d/b/a/ CellularOne



                                                                               6
<PAGE>

EXHIBIT A: DOBSON CELLULAR SYSTEMS, INC.
MARKETS INCLUDED

30471      Clarion                   PA      RSA 6             Sygnet Communications, Inc. d/b/a CellularOne
30495      Batavia                   NY      RSA 3             Sygnet Communications, Inc. d/b/a CellularOne
30497      Bath/Corning              NY      RSA 3             Sygnet Communications, Inc. d/b/a CellularOne
30503      Warren                    PA      RSA 1             Sygnet Communications, Inc. d/b/a CellularOne
30627      Olean                     NY      RSA 3             Sygnet Communications, Inc. d/b/a CellularOne

MANAGED MARKETS
1339       Manistee                  MI      RSA 5             Managed for Radiofone

ACC MARKETS
245        Alton                     IL      MSA               American Cellular Corporation
1283       Richmond                  KY      RSA 6             American Cellular Corporation
1793       Morgantown                WV      RSA 3             American Cellular Corporation
26129      Zanesville                OH      RSA 7             American Cellular Corporation
26135      Uniontown                 PA      RSA 9             American Cellular Corporation
26137      Roanoke                   WV      RSA 2             American Cellular Corporation
26147      Monticello                NY      RSA 5             American Cellular Corporation
26149      Cobleskill                NY      RSA 5             American Cellular Corporation
26329      Deposit                   NY      RSA 5             American Cellular Corporation
26335      Orange County             NY      MSA               American Cellular Corporation
26337      Marinette                 WI      RSA 4             American Cellular Corporation
26339      Oconta/Shawano            WI      RSA 4             American Cellular Corporation
26343      Warwick                   NY      MSA               American Cellular Corporation
26363      Menomonie                 WI      RSA 5             American Cellular Corporation
26369      Hudson                    NY      RSA 6             American Cellular Corporation
26371      Poughkeepsie              NY      MSA               American Cellular Corporation
26377      W Mt. Hope                NY      MSA               American Cellular Corporation
26435      Morristown                TN      RSA 4             American Cellular Corporation
30463      Radcliff                  KY      RSA 4             American Cellular Corporation
30785      Maysville                 KY      RSA 8             American Cellular Corporation
30787      Glasglow                  KY      RSA 5             American Cellular Corporation
30797      Bemidji                   MN      RSA 2             American Cellular Corporation
30845      Int'l Falls               MN      RSA 3             American Cellular Corporation
30923      Duluth                    MN      MSA               American Cellular Corporation
30927      Eau Claire                WI      MSA               American Cellular Corporation
30929      Wausau                    WI      MSA               American Cellular Corporation
30931      Marquette                 MI      RSA 1             American Cellular Corporation
30935      Rhinelander               WI      RSA 3             American Cellular Corporation
30937      Brainerd                  MN      RSA 6             American Cellular Corporation
30945      Rice Lake                 WI      RSA 1             American Cellular Corporation
30973      Fergus Falls              MN      RSA 5             American Cellular Corporation
</TABLE>


                                                                               7
<PAGE>

                                   APPENDIX II

                                       TO

                      INTERCARRIER ROAMER SERVICE AGREEMENT

                                     BETWEEN

                   BELLSOUTH CELLULAR NATIONAL MARKETING INC.

                                       AND

                          DOBSON CELLULAR SYSTEMS. INC.

                    GENERAL TERMS AND CONDITIONS FOR ROAMING

                                   DEFINITIONS


     A.   The "Agreement" means the Intercarrier Roamer Service Agreement,
including all appendices attached thereto, to which these General Terms and
Conditions for Roaming are attached.

     B.   The phrase "commercial mobile radio service" means domestic public
commercial mobile radio telecommunications service.

     C.   "Home Carrier" means a Party who is providing commercial mobile radio
service to its registered customers in a geographic area Where it holds a
license or permit for a domestic public commercial mobile radio
telecommunication system and station.

     D.   "Serving Carrier" means a Party who provides commercial mobile radio
service for registered customers of another Party while such customers are out
of their Home Carrier's geographic area and in the geographic area where the
Serving Carrier holds a license or permit for a domestic public commercial
mobile radio telecommunication system and station.

     E.   "Roamer" means a customer who seeks commercial mobile radio service in
geographic area outside of the area served by the Party with whom it is
registered.



                                                                               8
<PAGE>

     F.   "Authorized Roamer" means a roamer using equipment with the NPA/NXX
combination listed in accordance with Paragraph 3.1 of this Appendix II (except
as specified in Paragraph 3.2 hereof) for whom the Serving Carrier has not
received a negative notification in accordance with the provisions of Article
III hereof

     G.   "CIBER" means Cellular Intercarrier Billing Exchange Record.

     H.   "CIBER RECORD" means the publication prepared by CIBERNET Corporation,
a wholly-owned subsidiary of the Cellular Telecommunications Industry
Association, as a service to the commercial mobile radio service industry.

     I.   "ESN" means the Electronic Serial Number that is "burned" in the
customer's commercial mobile telephone set by the manufacturer.

     J.   "MN" means the "Mobile Identification Number" which is assigned by a
Home Carrier to each of its registered customers.

     K.   "NPA/NXX combinations" means the six digit numerical combinations
assigned by regulatory authorities to identify the area code and prefix for
commercial mobile radio service.

     L.   "Authorized Receipt Point" or "AR')" means the location or address of
the party designated by the "Home Carrier" as the delivery point for its CIBER
records and authorized agent for performing CIBER edits.

     M.   "Clearinghouse" means that entity which provides for the exchange of
CIBER record and performs industry accepted CIBER edits, including edits to
verify Industry Negative File Information.

     N.   The phrase "approved CIBERNET Negative File Guidelines" means the
negative file guidelines appearing in the CIBER Record in effect from time to
time.

     O.   Unless specifically provided otherwise in the Agreement, all words and
phrases


                                                                               9
<PAGE>

defined in the CIBER Record shall have the meaning herein that they have
therein.

     P.   "Industry Negative File" means the negative file maintained by the
authorized Clearinghouses in accordance with approved CIBERNET Negative File
Guidelines.


                                   PROVISIONS

                             I. PROVISION OF SERVICE

     1.1  Each Party shall provide, to any Authorized Roamer who so requests,
commercial mobile radio service in accordance with its own tariffs and with the
terms and conditions of this Agreement.

     1.2  Notwithstanding anything in this Agreement to the contrary, a Serving
Carrier may suspend or terminate service to an Authorized Roamer in accordance
with the terms of its own tariffs, but such suspension or termination shall not
affect the rights and obligations of the Parties for service tarnished hereunder
prior to such termination or suspension.

     1.3  In connection with its service to Roamers, no Serving Carrier shall
use recorded announcements or other inducements for an Authorized Roamer to
discontinue the Commercial Mobile Radio Service of its Home Carrier or, unless
otherwise authorized herein, Roamer's use of a Serving Carrier's system.


                             II. DIVISION OF REVENUE

     2.1  Each Home Carrier, whose customers (including the customers of its
resellers) receive commercial mobile radio service from a Serving Carrier as
Authorized Roamers under this Agreement, shall pay to the Serving Carrier who
provided such commercial mobile radio service 100% of the Serving Carrier's
charges for commercial mobile radio service and one hundred percent (100%) of
pass-through charges (i.e., any toll or other charges owed by the Serving
Carrier hereunder to any toll or other carrier in connection with providing such
commercial mobile radio services) regardless of whether these amounts are paid
to the Home Carrier by its customers.



                                                                              10
<PAGE>

                          III. EXCHANGE OF INFORMATION

     3.1  Attachment A to this Appendix II is a list furnished by the respective
Parties of the valid NPA/NXX combinations used by their respective customers.
These combinations shall be accepted by the other Parties. Each NPA/NXX
combination is and shall be within the entire line range (0000-9999), or a
specified portion thereof, in accordance with Appendix III. Each Party shall be
responsible for all billings otherwise properly made under this Agreement to any
number listed by such Party within the range or ranges specified by it in
Attachment A. Additions, deletions, or changes to NPA/NXX combinations and line
number range(s) for their respective customers shall be sent by each Party to
the other Parties in the form of an amendment to Attachment A, with an effective
date as defined in Appendix Ill.

     3.2  Each Party shall provide to each other Party, or their respective
authorized representatives, a list of MIN's from among those within the NPA/NXX
combination(s) indemnified pursuant to Paragraph 3.1 hereof and of ESN's of the
commercial mobile radio telephones to which the other Parties are not authorized
to provide commercial mobile radio service pursuant to this Agreement, which
shall be entered into the Industry Negative File. The approved CIBERNET Negative
File Guidelines shall be the governing criteria for all Parties. Thereafter,
from time to time, each Party shall notify each other Party or their respective
authorized representatives, of all additions to, and deletions from, these lists
for the customers of that particular Party. Such notifications shall be made
during the normal business hours of the Parties, via the Clearinghouse, by the
means set forth in Appendix III and shall be in the form mutually agreed upon,
and effective as defined in Appendix III.

     3.2.1 Each Party hereby agrees to indemnify the other Party, together with
their partners and any and all of their officers, directors, employees, agents
and/or affiliates, against, and hold them harmless from, any and all claims,
suits, demands, losses and expenses, including attorneys' fees and
disbursements, which may result in any way whatsoever from the indemnified
Party's denial of Roamer or local commercial mobile radio service to any
commercial mobile radio telephone which has been listed


                                                                              11
<PAGE>

(pursuant to the preceding Paragraph 3.2 hereof) by the indemnifying party as
not being authorized to receive service.

     3.2.2 Each Party, due to system limitations, may purge or delete numbers of
its customers from the lists as referred to in Paragraph 3.2 hereof, but in all
such cases, such purging or deletion must be done in accordance with the
approved CIBERNET Negative File Guidelines. If purging or deletion of numbers is
done prior to the time frames established, or through procedures not otherwise
set forth, in the approved CIBERNET Negative File Guidelines, the Party
implementing the purge or deletion will assume financial liability for any
charges incurred by those numbers. All purges or deletions made pursuant to this
Paragraph 3.2.2 shall be given through the Parties and shall be in the form
mutually agreed upon and effective as of the time established by the approved
CIBERNET Negative File Guidelines (unless otherwise modified by mutual agreement
of the Parties).

     3.3  To control fraudulent Roamer usage, each Party is required to use a
positive validation/verification system provided by a mutually agreed upon
validation/verification service in all markets set forth in Appendix I. The
Parties shall cooperate in good faith to control fraudulent Roamer usage. All
Parties agree to notify each other should such fraudulent usage become apparent
on any Party's system. In addition, any new operational market that becomes
operational after execution of this Agreement shall automatically become subject
to the provisions of this Agreement. The Parties agree that calls completed by a
Serving Carrier, either, (a) after a validation request has determined that a
Roamer is not a valid customer of the Home Carrier or (b) for any unauthorized
ESN after entry to the Industry Negative File has become effective, shall be the
sole responsibility of the Serving Carrier. Validation requests will be made on
all Roamer MIN/ESN combinations in accordance with Clearinghouse standard
operating procedures as noted in Appendix III.

     3.4  Not later than the date of execution of this Agreement, the Parties
shall furnish each other with a copy of their current or proposed tariffs or
price lists, whichever is appropriate. If any Party has filed for


                                                                              12
<PAGE>

any changes in an existing tariff or price lists, copies of the proposed revised
pages also shall be provided. Each Party shall also notify each other Party of
any applicable change in its tariffs or prices, with an effective date as
specified in Appendix III, and shall include with such notice copies of the
revised pages of such tariffs or price lists. If tariffs are not required to be
filed by certain jurisdiction, the Parties shall exchange the written terms and
conditions of service to be used in lieu thereof and any amendments thereto.

     3.5  All information not of public record that is exchanged pursuant to
this Agreement shall be treated as confidential. Parties obtaining such
confidential information through this Agreement shall use it only as necessary
to carry out the purpose of this Agreement or as necessary to comply with
federal, state, and local law. Parties obtaining confidential information
through this Agreement shall not disclose its contents except as necessary to
its duly authorized agents to carry out the purposes of this Agreement or as
necessary to comply with federal, state, or local law. The obligation to protect
the confidentiality of information shall survive the termination of the
agreement for a period of five years.


                                   IV. BILLING

     4.1  Each Home Carrier shall be responsible for billing to, and collecting
from, its own customers all charges that are incurred by such customers as a
result of service provided to them as Authorized Roamers by the Serving Carrier.
The Home Carrier shall also be responsible for billing its customers for, and
remitting to, the Federal Government all federal excise tax that may be due in
connection with the service being billed by it to its customers. While the
Serving Carrier will j,e responsible for the computation and remittance of all
state and local taxes, each Home Carrier shall be liable to the Serving Carrier
for all such state and local taxes remitted by the Serving Carrier, regardless
of whether these amounts are paid to the Home Carrier by its customers.

     4.2  The Parties will cooperate and, as necessary supplement this Agreement
in order to minimize fraudulent or other unwarranted use of their system. If any
Party reasonably decides that, in its sole


                                                                              13
<PAGE>

judgment, despite due diligence, fraudulent or other unwarranted use has reached
an unacceptable level of financial loss and is not readily remediable, such
Party may suspend this Agreement pursuant to Section VI hereof.

     4.3  Each Serving Carrier who provides commercial mobile radio service to
an Authorized Roamer pursuant to this Agreement shall forward Roamer billing
information, on at least a weekly basis, in accordance with the procedures and
standards set forth in the CIBER Record to the Home Carrier's Authorized Receipt
Point. Except for Serving Carriers utilizing the CIBERNET Corporation Net
Settlement Program, each Serving Carrier who provides commercial mobile radio
service to any Authorized Roamer pursuant to this Agreement shall send the Home
Carrier a paper invoice within the time period specified in Appendix III. The
invoice shall reflect all charges relating to service for which Authorized
Roamer billing information was forwarded to the Home Carrier during the previous
"Billing Period", as defined in Appendix III. The Serving Carrier will use the
information provided by its Clearinghouse for invoice preparation and support.
The Home Carrier shall be furnished with an invoice setting forth the same
information required in Appendix III from non-Clearinghouse Serving Carriers. In
either case, the Home Carrier will only pay for Authorized Roamer charges based
on the settlement report provided by its Clearinghouse.

     4.4  Where the Authorized Roamer billing information required to be
provided by the Serving Carrier in accordance with Paragraph 4.3 above is not in
accordance with the CIBER Record, the Home Carrier may return the defective
record to the Serving Carrier as provided in the CIBER Record. Returning the
defective record will be in accordance with CIBER Record established procedures.
The Serving Carrier may correct the defective record and return it to the Home
Carrier for billing, provided that the time period from the date of the call to
the receipt of the corrected record does not exceed the time period specified
under "Message Date Edit" in Appendix III.

     4.5  No credit for insufficient data or defective records shall be
permitted except as provided in


                                                                              14
<PAGE>

Paragraph 4.4 above, unless mutually agreed upon. Any credit that is requested
by the Home Carrier must be fully documented and settled utilizing the format
forth in Attachment C.


                                  V. SETTLEMENT

     5.1  Each Party will settle its accounts with the other Party on the basis
of billing information received pursuant to Section IV hereof as of the "Close
of Billing", as that phrase is defined in Appendix III. The Home Carrier shall
remit to the Serving Carrier's designated account by wire transfer or check such
amounts as are due to the Serving Carrier as of the Close of Billing. Carriers
utilizing net settlement procedures set forth in the CIBER Record are not
required to support a paper invoice and will make payments in accordance with
such net settlement procedures.

     5.2  Any payment which is received later than the date permitted in
Appendix III shall be subject to a late charge equal to that set forth in
Appendix III. The only exception to this requirement shall be late payments
which are delayed in forwarding through circumstances which are beyond the
control of the Home Carrier and are agreed to by the Serving Carrier, which
agreement shall not be unreasonably withheld.


                   VI. TERMINATION AND SUSPENSION OF AGREEMENT

     6.1  This Agreement may be suspended or terminated in accordance with the
provisions thereof either (1) in part, but only as to a particular Domestic
Public Cellular Radio Telecommunications System/Station or Systems/Stations of a
Party or Parties, or (2) in whole.

     6.2  This Agreement may be terminated without cause by either Party
effective upon thirty (30) days written notice to the other. In the event of a
default under this Agreement or a change by state or federal licensing
authorities banning or severely impairing the use of Roamer service by either
Party, this Agreement by be terminated immediately upon written notice.

     6.3  This Agreement may be suspended by either Party for any reason
immediately upon written notice to the other under the terms specified in this
Agreement. The Parties shall work together to resolve


                                                                              15
<PAGE>

as expeditiously as possible any difficulty that causes such suspension. At such
time as the Party originally giving notice of suspension concludes that the
problem causing the suspension has been resolved, the Party shall give to the
other written notice to this effect. This Agreement shall resume in fill effect
five (5) business days after the Parties have mutually agreed that the problem
has been resolved, unless either Party views that the problem necessitating the
suspension has not been resolved. If the problem causing the suspension of this
Agreement remains unresolved for thirty (30) days, this Agreement may be
terminated by written notification by either Party to the other.

     6.4  The termination or suspension of this Agreement shall not affect the
rights and liabilities of the Parties under this Agreement with respect to all
Authorized Roamer charges incurred prior to the effective date of such
termination or suspension.


                                  VII. DEFAULT

     7.1  A Party will be in default under this Agreement upon the occurrence of
any of the following events:

     (a)  Breach of any term of this Agreement, if such breach shall continue
for thirty (30) days after receipt of written notice thereof;

     (b)  Voluntary liquidation or dissolution;

     (c)  A final order by the Federal Communications Commission ("FCC")
revoking or denying renewal of the commercial mobile radio service license or
permit granted to such Party; or

     (d)  Such Party (i) filing pursuant to a statute of the United States or of
any state, a petition for bankruptcy or insolvency or for reorganization or for
the appointment of a receiver or trustee for all or a portion of such Party's
property, (ii) has filed against it, pursuant to a statute of the United States
or of any state, a petition for bankruptcy or insolvency or for reorganization
or for the appointment of a receiver or trustee for all or a portion of such
Party's property, provided that within sixty (60) days after the filing of any
such petition such Party fails to obtain a discharge thereof, or (iii) making an
assignment for the


                                                                              16
<PAGE>

benefit of creditors or petitioning for, or voluntarily
entering into, an arrangement of similar nature, and provided that such filing,
petition, or appointment is still continuing.


                          VIII. SUCCESSORS AND ASSIGNS

     8.1  Neither Party may sell, assign, transfer, or convey its interest in
this Agreement or any of its rights or obligations hereunder without the written
consent of the other Party, except that a Party may assign its rights and
obligations hereunder to an assignee of its commercial mobile radio service
license or permit issued by the FCC, provided that such assignee expressly
assumes, by written instrument approved by the Parties, all of the obligations
of such Party hereunder and thereby becomes a party hereunder. No person other
than a Party to this Agreement shall acquire any rights hereunder as a
third-party beneficiary or otherwise by virtue of this Agreement.


              IX. NO PARTNERSHIP OR AGENCY RELATIONSHIP IS CREATED

     9.1  Nothing contained in this Agreement shall constitute the Parties as
partners with one another or render any Party liable for any debts or
obligations of any other Party, nor shall any Party hereby be constituted the
agent of any other Party.


                    X. NOTICES AND AUTHORIZED REPRESENTATIVES

     10.1 Unless otherwise specified in this Agreement:

     (a)  All notices required under this Agreement shall be given in writing;
and

     (b)  All notices shall be either personally delivered, dispatched by
telegram, or dispatched by certified mail, Return Receipt Requested, to the
persons specified in this Agreement or to such other persons at such other
addresses as either Pay may designate by written notice to the other.

     10.2 For the purposes of this Agreement, BSCNM shall be the authorized
representative of its Parties and ___________ shall be the authorized
representative of its Parties.


                                XI. MISCELLANEOUS

     11.1 The Parties agree to comply with, conform to, and abide by all
applicable and valid laws,


                                                                              17
<PAGE>

regulations, rules and orders of all governmental agencies and authorities, and
agree that this Agreement is subject to such laws, regulations, rules, and
orders.

     11.2 The Parties agree to use their respective best, diligent, and good
faith efforts to fulfil all of their obligations under this Agreement. The
Parties recognize, however, that to effectuate all the purposes of this
Agreement, it may be necessary either to enter into future agreements or to
amend this Agreement, or both. In that event, the Parties agree to negotiate
with each other in good faith.

     11.3 This Agreement constitutes the fill and complete agreement of the
Parties. Any prior agreement among the Parties with respect to this subject
matter is hereby superseded. This Agreement may not be amended, except by the
written consent of the Parties. Waiver of any breach of any provision of the
Agreement must be in writing signed by the parties. Such waiver shall not be
deemed to be a waiver of any preceding or succeeding breach of the same or any
other provision. The failure of either Party to insist upon strict performance
of any provision of this Agreement or any obligation under this Agreement shall
not be a waiver of either such Party's right to demand strict compliance
therewith in the future.

     11.4 The headings in this Agreement are inserted for convenience and
identification only and are not intended to describe, interpret, define or limit
the scope, extent or intent of this Agreement or any provision thereof

     11.5 This Agreement may be executed in counterparts, each of which shall be
deemed an original, but all of which together shall constitute one and the same
Agreement.


                               XII. CHOICE OF LAW

     12.1 This Agreement shall be construed in accordance with the laws of the
state of the Serving Carrier.


                                                                              18
<PAGE>

ATTACHMENT A

                                  CIBER RECORD

                             METHODS AND PROCEDURES

The following information is tarnished to the Parties pursuant to Paragraph 3.1
of Appendix II to the Intercarrier Roamer Service Agreement between the Parties
to the Agreement:

-------------------------------------------------------------------------------
  NPA/NXX     LINE RANGE     SID CODE     CITY     START DATE     END DATE
-------------------------------------------------------------------------------



BellSouth Cellular National Marketing Inc.

By:
   -----------------------------------

Title:
      --------------------------------

Issue Date:
           ---------------------------


(The effective date shall be that defined in Appendix Ill of the
above-referenced Intercarrier Roamer Service Agreement)


                                                                              19
<PAGE>

ATTACHMENT B - BELLSOUTH CELLULAR MARKET LISTING

<TABLE>
<CAPTION>
   SID/BID     OPERATING                CITY                 STATE
                ENTITY
<S>            <C>                <C>                        <C>
      24          BMI                   MIAMI                  FL
      34          BMI                  ATLANTA                 GA
      36          BMI                NEW ORLEANS               LA
      62          BMI                  MEMPHIS                 TN
      68          BMI                  ORLANDO                 FL
      76          BMI                 LOUISVILLE               KY
      81          BMI                   MOBILE                 AL
      98          BMI                 BIRMINGHAM               AL
     106          BMI                BATON ROUGE               LA
     118          BMI                  NASHVILLE               TN
     136          BMI                JACKSONVILLE              FL
     148          BMI               CHATTANOOGA                TN
     160          BMI                  JACKSON                 MS
     197          BMI                 EVANSVILLE               IN
     198          BMI                 HUNTSVILLE               AL
     206          BMI                 LEXINGTON                KY
     308          BMI                  DAYTONA                 FL
     334          BMI                  FLORENCE                AL
     414          BMI                 LAFAYETTE                LA
     426          BMI                   MACON                  GA
     476          BMI                 MELBOURNE                FL
    1011          BMI                MONROEVILLE               AL
    1990          BMI               INTERNATIONAL              FL
                                     (HOME ONLY)
    1289          BMI                  PIKEVILLE               KY
    1376          BMI                   TUPELO                 MS
    1684          BMI                FAYETTEVILLE              TN
    1884          BMI                  PIKEVILLE               TN
    1988          BMI                LAKE COUNTY               FL
   26122          BMI                  WAVERLY                 TN
   26145          BMI                    CLAY                  KY
   26160          BMI                SHELBYVILLE               KY
   26186          BMI                MARINGOUIN                LA
   26272          BMI                  LAPLACE                 LA
   26274          BMI                  CONVENT                 LA
   26276          BMI                BELLE CHASE               LA
   26397          BMI                   JASPER                 IN
   26422          BMI               DESOTO COUNTY              MS
   26523          BMI                  CORYDON                 IN
   30048          BMI                  ACADIANA                LA

   30050          BMI                 HAMMOND                  LA
   30134          BMI               GUNTERSVILLE               AL
   30168          BMI                 COLUMBIA                 TN
   30170          BMI                 DECATUR                  AL
   30202          BMI               FLORIDA KEYS               FL
   30218          BMI                CLEVELEND                 TN
   30224          BMI                VICKSBURG                 MS
   30268          BMI                 CALHOUN                  GA
   30270          BMI                GAINESVILLE               GA
   30272          BMI                   ROME                   GA
   30274          BMI                 MADISON                  GA
   30276          BMI                  BREMAN                  GA
   30300          BMI                 JACKSON                  TN
   30322          BMI               MILLEDGEVILLE              GA
   30334          BMI                  RICHMOND                KY
   30338          BMI                   FLAGLER                FL
   30340          BMI                   GRIFFIN                GA
   30342          BMI                  FORSYTH                 GA
   30346          BMI                 FRANKFORT                KY
   30350          BMI                 BIRMINGHAM               AL
   30352          BMI                 TALLADAGA                AL
   30357          BMI                OWENSBORO                 KY
   30452          BMI                VERO BEACH                FL
   30476          BMI                  PALATKA                 FL
   30516          BMI                   RAMAH                  LA
   30532          BMI                 MENDENHALL               MS
   30534          BMI                   FOREST                 MS
   30582          BMI                 GA RSA 4A1               GA
   30584          BMI                 GA RSA 2B2               GA
   30592          BMI                 SCOTTSBORO               AL
   30628          BMI                   ATHENS                 GA
   30638          BMI                  GRENADA                 MS
   30654          BMI                 SAVANNAH                 TN
   30660          BMI                  MERIDIAN                MS
   30698          BMI                MT. STERLING              KY
   30711          BMI                MADISONVILLE              KY

   30714          BMI                HOLLY SPRINGS             MS
   30750          BMI                   HICKMAN                TN
   30757          BMI                    MEADE                 KY
   30758          BMI                   RIPLEY                 TN
   30776          BMI                 CLEWISTON                FL
   30778          BMI                 SENATOBIA                MS
   30796          BMI                 PLAQUEMINE               LA
   30798          BMI                 CYNTHIANA                KY
   30836          BMI                   TUNICA                 MS
   30838          BMI                CLARKSVILLE               TN
   30852          BMI                  RSA MS4                 MS
   30917          BMI                  PADUCAH                 KY
   30938          BMI                 WINFIELD                 AL
   31096          BMI                  CLINTON                 LA
      19        Westel               INDIANAPOLIS              IN
    1207        Westel                COLUMBUS                 IN
   30325        Westel                ANDERSON                 IN
   30327        Westel              BLOOMINGTON                IN
   30329        Westel                LAFAYETTE                IN
   30331        Westel                 MUNCIE                  IN
   30335        Westel              TERRA HAUTE                IN
   30377        Westel             CRAWFORDSVILLE              IN
   30457        Westel                VINCENNES                IN
   30899        Westel               GREENSBURG                IN
</TABLE>


                                                                              20
<PAGE>

<TABLE>
<CAPTION>
   SID/BID     OPERATING                CITY                 STATE
                ENTITY
<S>            <C>                <C>                        <C>
    4310     BMI (PCS TDMA)             BILOXI                 MS
    4412     BMI (PCS TDMA)            COLUMBUS                GA
    4536     BMI (PCS TDMA)            FT. PIERCE              FL
    4700     BMI (PCS TDMA)            LAGRANGE                GA
    4840     BMI (PCS TDMA)             MONROE                 LA
    4914     BMI (PCS TDMA)           PANAMA CITY              FL
    5066     BMI (PCS TDMA)           SHREVEPORT               LA
    5251     BMI (PCS TDMA)          ALBANY.TIFTON             GA
    5257     BMI (PCS TDMA)           ALEXANDRIA               LA
    5429     BMI (PCS TDMA)            COLUMBUS                MS
    5481     BMI (PCS TDMA)           DYERSBURG                TN
    5547     BMI (PCS TDMA)            FT MYERS                FL
    5553     BMI (PCS TDMA)          FT. WALTON BCH            FL
    5557     BMI (PCS TDMA)             GADSDEN                AL
    5559     BMI (PCS TDMA)           GAINESVILLE              FL
    5591     BMI (PCS TDMA)           GREENVILLE               MS
    5615     BMI (PCS TDMA)           HATTIESBURG              MS
    5633     BMI (PCS TDMA)              HOUMA                 LA
    5719     BMI (PCS TDMA)           LAKE CHARLES             LA
    5721     BMI (PCS TDMA)           WINTERHAVEN              FL
    5815     BMI (PCS TDMA)            BROOKHAVEN              MS
    5853     BMI (PCS TDMA)              MONROE                LA
    5855     BMI (PCS TDMA)            MONTGOMERY              AL
    5871     BMI (PCS TDMA)              NAPLES                FL
    5875     BMI (PCS TDMA)             NATCHEZ                MS
    5899     BMI (PCS TDMA)              OCALA                 FL
    5915     BMI (PCS TDMA)             AUBURN                 AL
    5933     BMI (PCS TDMA)            PENSACOLA               FL
    6057     BMI (PCS TDMA)            SARASOTA                FL
    6071     BMI (PCS TDMA)              SELMA                 AL
    6127     BMI (PCS TDMA)           TALLAHASSEE              FL
    6129     BMI (PCS TDMA)              TAMPA                 FL
    6159     BMI (PCS TDMA)            VALDOSTA                GA
    6187     BMI (PCS TDMA)            WAYCROSS                GA
   40199     BMI (PCS TDMA)           THOMASVILLE              GA
    4142     DCS (GSM)                  KNOXVILLE              TN
    4200     DCS (GSM)                 CHARLOTTE               NC
   40001     DCS (GSM)                  ANDERSON               SC
   40003     DCS (GSM)                  ASHEVILLE              NC
   40005     DCS (GSM)                 BURLINGTON              NC
   40007     DCS (GSM)                 CHARLESTON              SC
   40009     DCS (GSM)                  COLUMBIA               SC
   40011     DCS (GSM)                FAYETTEVILLE             NC
   40013     DCS (GSM)                  FLORENCE               SC
   40015     DCS (GSM)                 GOLDSBORO               NC
   40017     DCS (GSM)                GREENSBORO               NC
   40019     DCS (GSM)                 GREENVILLE              NC
   40021     DCS (GSM)                 GREENVILLE              SC
   40023     DCS (GSM)                GREENWOOD                SC
   40025     DCS (GSM)                   HICKORY               NC
   40027     DCS (GSM)                JACKSONVILLE             NC
   40029     DCS (GSM)                  TRI-CITIES             TN
   40031     DCS (GSM)                MIDDLESBORO              KY
   40033     DCS (GSM)                MYRTLE BEACH             SC
   40035     DCS (GSM)                  NEW BERN               NC
   40037     DCS (GSM)                ORANGEBURG               SC
   40039     DCS (GSM)                   RALEIGH               NC
   40041     DCS (GSM)               ROANOKE RAPIDS            NC
   40043     DCS (GSM)                ROCKY MOUNT              NC
   40045     DCS (GSM)                   SUMTER                SC
   40047     DCS (GSM)                 WILMINGTON              NC
   40266     DCS (GSM)                  AUGUSTA                GA
   40268     DCS (GSM)                 BRUNSWICK               GA
   40270     DCS(GSM)                   SAVANNAH               GA
</TABLE>


                                                                              21
<PAGE>

ATTACHMENT C


                                 CREDIT REQUEST

Home Carrier:___________________________________

Serving Carrier:________________________________

Date of Invoice:________________________________

Date of Rated Usage Record Data:________________

Batch # and Date:_______________________________

Number of Records:______________________________

Amount of Invoice Not Justified:$_______________
(Airtime & Toll Charges, Other Charges & Taxes)
                  __________Payment Withheld              __________Charge Back

Reasons for withholding Payment or Charge Back:

______1. Invoice is inconsistent with the Rated Usage Record Data with respect
         to:

              ____a. Taxes;

              ____b. Other pass-through charges;

              ____c. Commercial Mobile Radio Service charges;

              ____d. Percentage of commercial mobile radio
                     service;

              ____e. Other (see attached reports)

______2. Rated Usage Record Data is incomplete for the charges on the attached
         sheet:

______3. NPA/NXX combination is not on the list authorized by the Home Carrier:

                     Mobile ID Number________________________

                     Electronic Serial Number________________

______4. Charges for Roamer usage specified on the attached sheet that are not
         authorized by the Home Carrier;

______5. Batch totals and detail charges do not balance or batch is out of
         sequence.

______6. CIBER rejects


______7. Other (specify below)

Home Carrier:

Date:___________________

By:_____________________

Title:__________________


                                                                              22
<PAGE>

                                  APPENDIX III

                                       TO

                      INTERCARRIER ROAMER SERVICE AGREEMENT

                                     BETWEEN

                 BELLSOUTH CELLULAR NATIONAL MARKETING INC. [A]

                                       AND

                        DOBSON CELLULAR SYSTEMS INC. [B]

                              OPERATING PROCEDURES


     1.   AMENDMENT OF OPERATIONS PROCEDURES. This Appendix III will be in
effect until new Operating Procedures are published by the CIBERNET Corporation
("CIBERNET"), 1250 Connecticut Avenue, N.W. Washington, D.C. 20036, for Roamer
agreements used domestically by the Cellular Telecommunications Industry
Association. At such time as new operating Procedures ("New Operating
Procedures") are published by CIBERNET, they will be effective as to the Parties
on the date proposed by CIBERNET ("Effective Date") provided (a) such date is at
least thirty (30) days following receipt by [A] and [B] of the New Operating
Procedures and (b) neither [A] nor [B] has given to the other written notice of
termination or suspension of this Agreement based upon its objections to the New
Operating Procedures at least five (5) business days before the Effective Date.
The Parties agree to be individually responsible for obtaining all officially
published revisions to the Operating Procedures and agree that CIBERNET is not
liable for information or actions that occur as a result of following such New
Operating Procedures.

     2.   CLOSE OF BILLING. "Close of Billing" shall be the fifteenth (15th) day
of each calendar month or the next preceding business day if the fifteenth
(15th) is not a business day.

     3.   INVOICING. Invoicing must occur within fifteen (15) days after the
Close of Billing.


                                                                              23
<PAGE>

     4.   BILLING PERIOD. The "Billing Period" is the period running from the
day after the Close of Billing through the Close of Billing day in the
subsequent month (normally the sixteenth (16th) through the fifteenth (15th),
unless the fifteenth (15th) falls on a non-business day).

     5.   PAYMENT. Payment in the form of a check or wire transfer must be
received by the payee within thirty (30) days ("Payment Due Date") following the
date of the invoice. Payments received later than the Payment Due Date shall be
subject to a late charge of 1.5% of the outstanding balance for each thirty (36)
day period (or portion thereof) that such payments are late or the highest
percentage of the outstanding balance permitted by law, whichever is lower.

     6.   MINIMUM LINE RANGE. The "Minimum Line Range with in a NPA/NXX is 1,000
line numbers.

     7.   NPA/NXX NOTIFICATION. The minimum time required before changes,
additions or deletions of NPA/NXX's are effective shall be fifteen (15) days
from the date of receipt of notification of such changes, additions or deletions
by [A] for [B] Parties, or by [B] for [A] Parties.

     8.   TARIFF CHANGES. Notice of any applicable changes to tariffs must be
received by [A] for tariff changes for any [B] Party, or by [B] for tariff
changes for any [A] Party, at least fifteen (15) days prior to the proposed
effective date or at least the number of days specified by state or local
governmental regulations prior to the proposed effective date, whenever period
is longer.

     9.   BILLING INVOICE SUMMARY. The Minimum information needed for any
invoice issued with non-clearinghouse documentation must include the following:

     -    Billing Period (To/From Dates)

     -    Batch Sequence Number

     -    Batch Date

     -    Serving and Home SID's (the five-digit numeric
          corresponding to the FCC designation of the Carrier)

     -    Total Airtime Charges


                                                                              24
<PAGE>

     -    Total Intra-State Toll

     -    Total Inter-State Toll

     -    Other Charges and Credits

     -    Total Taxes

     -    Total Charges

**   10A. TYPE 10, 20, & 50 MESSAGE DATE EDIT. Type 10, 20, & 50 message records
shall be considered to have failed the CIBER Record Edit if the message is more
than thirty (30) days old when it is received at the Home Carrier's Authorized
Receipt Point ("ARP"). Message records which are rejected from the Home
Carrier's ARP and returned to the Serving Carrier shall be considered to have
failed the CIBER Record Edit if the message is more than sixty (60) days old.
Determination of the age of a message record is from the date of the call.

**   10B. TYPE 11 & 30 MESSAGE DATE EDIT. Type 11 & 30 message records shall be
considered to have failed the CIBER Record Edit if the message is more than
sixty (60) days old when it is received at the Home Carrier's Authorized Receipt
Point ("ARP"). Message records which are rejected from the Home Carrier's ARP
and returned to the Serving Carrier shall be considered to have failed the CIBER
Record Edit if the message is more than ninety (90) days old. Determination of
the age of a message record is from the date of the call.

**   10C. TYPE 11 & 70 CIBER RECORDS. Type 11 and 70 CIBER records will not be
accepted without mutual written consent by both parties at which time it will
be added to this agreement.

     11.  EFFECTIVE DATE FOR UNAUTHORIZED ROAMER LIABILITY. Effective with
messages dated January 15, 1992 and earlier, liability for unauthorized roamers
shall be established at 12:01 A.M. Eastern Time of the Calendar day immediately
following receipt by [A] and [B], or their respective authorized
representatives, of notification or update of the attachments and lists referred
to in Paragraph 3.1 and 3.2 of Appendix II.

     Effective with messages date January 16, 1992 through September 15, 1992,
liability for


                                                                              25
<PAGE>

unauthorized roamer shall be established One hour after posting of negative file
update by the SERVING carrier's valid provider of Clearing and/or positive
roamer validation/verification services (clearinghouse). It is essential to
populate the Time Zone Indicator and Daylight Savings Indicator fields with
appropriate values. Utilization of existing clearinghouse negative file update
timestamps shall apply.

     Effective with message dated September 16, 1992 and later, liability for
unauthorized roamers shall be established one hour after posting of negative
file update by the HOME carrier's clearinghouse.

     In all cases, liability for restoral of existing negative file entries
shall be immediate. Notification or updating of the attachments and lists shall
be made by (a) courier delivery of a written notice, or (b) facsimile
transmission of a written notice during normal business hours of the Party being
notified, or (c) by entry (through manual or automated means) into the Industry
Negative File of a clearinghouse.




                                                                              26