BIRCH TELECOM INC /MO
S-4/A, 1998-11-17
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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<PAGE>   1
 
   
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 17, 1998
    
 
                                                      REGISTRATION NO. 333-62797
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
   
                                AMENDMENT NO. 5
    
                                       TO
 
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                              BIRCH TELECOM, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                <C>                                <C>
             DELAWARE                             4813                            43-1766929
 (STATE OR OTHER JURISDICTION OF      (PRIMARY STANDARD INDUSTRIAL     (I.R.S. EMPLOYER IDENTIFICATION
  INCORPORATION OR ORGANIZATION)      CLASSIFICATION CODE NUMBER)                    NO.)
</TABLE>
 
                         1004 BALTIMORE AVE., SUITE 900
                          KANSAS CITY, MISSOURI 64105
                                 (816) 842-7560
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                            ------------------------
 
                               GREGORY C. LAWHON
                            SENIOR VICE PRESIDENT OF
                       PUBLIC POLICY AND GENERAL COUNSEL
                              BIRCH TELECOM, INC.
                         1004 BALTIMORE AVE., SUITE 900
                          KANSAS CITY, MISSOURI 64105
                                 (816) 842-7560
           (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)
                            ------------------------
 
                                    Copy to:
                            KIRK A. DAVENPORT, ESQ.
                                LATHAM & WATKINS
                               885 THIRD AVENUE.
                            NEW YORK, NEW YORK 10022
                                 (212) 906-1267
                            ------------------------
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  As soon as
practicable after this Registration Statement becomes effective.
 
    IF ANY OF THE SECURITIES BEING REGISTERED ON THIS FORM ARE BEING OFFERED IN
CONNECTION WITH THE FORMATION OF A HOLDING COMPANY AND THERE IS COMPLIANCE WITH
GENERAL INSTRUCTION G, CHECK THE FOLLOWING BOX.  [ ]
 
    IF THIS FORM IS FILED TO REGISTER ADDITIONAL SECURITIES FOR AN OFFERING
PURSUANT TO RULE 462(b) UNDER THE SECURITIES ACT, CHECK THE FOLLOWING BOX AND
LIST THE SECURITIES ACT REGISTRATION STATEMENT NUMBER OF THE EARLIER EFFECTIVE
REGISTRATION STATEMENT FOR THE SAME OFFERING.  [ ]
 
    IF THIS FORM IS A POST-EFFECTIVE AMENDMENT FILED PURSUANT TO RULE 462(d)
UNDER THE SECURITIES ACT, CHECK THE FOLLOWING BOX AND LIST THE SECURITIES ACT
REGISTRATION STATEMENT NUMBER OF THE EARLIER EFFECTIVE REGISTRATION STATEMENT
FOR THE SAME OFFERING.  [ ]
                            ------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------
        TITLE OF EACH                                          PROPOSED                PROPOSED               AMOUNT OF
     CLASS OF SECURITIES             AMOUNT TO BE           OFFERING PRICE            AGGREGATE              REGISTRATION
       TO BE REGISTERED               REGISTERED             PER NOTES(1)         OFFERING PRICE(1)             FEE(2)
- ------------------------------------------------------------------------------------------------------------------------------
<S>                             <C>                     <C>                     <C>                     <C>
14% Senior Notes due 2008.....       $115,000,000                100%                $115,000,000              $33,925
- ------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
(1) Estimated solely for purposes of calculating the registration fee pursuant
    to Rule 457.
 
(2) Paid with the initial filing of the Registration Statement.
                            ------------------------
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2
 
                                    PART II
 
                   INFORMATION NOT REQUIRED IN THE PROSPECTUS
 
ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
     Section 145 of the General Corporation Law of the State of Delaware
("DGCL") provides that a corporation has the power to indemnify any director or
officer, or former director or officer, who was or is a party or is threatened
to be made a party to any threatened, pending or completed action, suit or
proceeding, whether civil, criminal, administrative or investigative (other than
an action by or in the right of the corporation) against the expenses (including
attorney's fees), judgments, fines and amounts paid in settlement actually and
reasonably incurred by him in connection with the defense of any action by
reason of being or having been directors or officers, if such person shall have
acted in good faith and in a manner reasonably believed to be in or not opposed
to the best interests of the corporation, and, with respect to any criminal
action or proceeding, provided that such person had no reasonable cause to
believe his conduct was unlawful, except that, if such action shall be in the
right of the corporation, no such indemnification shall be provided as to any
claim, issue or matter as to which such person shall have been judged to have
been liable to the corporation unless and only to the extent that the Court of
Chancery of the State of Delaware (the "Court of Chancery"), or any court in
such suit or action was brought, shall determine upon application that, despite
the liability judgment, but in view of all of the circumstances of the case,
such person is fairly and reasonably entitled to indemnity for such expenses as
the Court of Chancery or such other court shall deem proper.
 
     Accordingly, the Certificate of Incorporation and the amendments thereto
dated February 10, 1998 and June 23, 1998 of the Company (filed herewith as
Exhibit 3.1) provide that subject to certain exceptions, the Company shall
indemnify each director or officer against any and all expenses (including
attorneys' fees), judgments, fines, excise taxes assessed with respect to any
employee benefit plan, or penalties and amounts paid in settlement actually and
reasonably incurred by such director or officer in connection with any
threatened, pending or completed action, suit or proceeding, whether civil,
criminal, administrative or investigative (including an action by or in the
right of the Company), to which such director or officer is, was or at any time
becomes a party, or is threatened to be made a party, by reason of the fact that
such director or officer is, was or at any time becomes a director or officer of
the Company, or is, or was serving, or at any time serves at the request of the
Company as a director or officer of another corporation, partnership, joint
venture, trust or other enterprise. The Certificate of Incorporation and the
amendments thereto also provide that the Company shall advance expenses
(including attorneys' fees) actually and reasonably incurred by a director or
officer in defending any proceeding and any judgments, fines or amounts to be
paid in settlement thereof. The Certificate of Incorporation and the amendments
thereto provide, however, that the foregoing provisions shall not require the
Company to pay any indemnity (i) for which payment is actually made to such
director or officer under a valid and collectible insurance policy, except in
respect of any excess beyond the amount of payment under such insurance; (ii)
for which such director or officer is indemnified by the Company pursuant to
applicable law or otherwise than pursuant to the Certificate of Incorporation of
the Company; (iii) for an accounting of profits made from the purchase or sale
by such director or officer of securities of the Company within the meaning of
Section 16(b) of the Securities Exchange Act of 1934 and amendments thereto or
similar provisions of any state statutory law or common law; (iv) on account of
such director's or officer's conduct which is finally adjudged by a court to
have been knowingly fraudulent, deliberately dishonest or willful misconduct; or
(v) if a final decision by a court having jurisdiction in the matter shall
determine that such indemnity is not lawful. Such indemnification shall not be
deemed exclusive of any other rights to which a director or officer seeking
indemnification may be entitled under any statute, the Bylaws, other provisions
of the Certificate of Incorporation of the Company, agreement, vote of
stockholders or disinterested directors or otherwise, both as to action in such
director's or officer's official capacity and as to action in any other capacity
while holding such office.
 
     Furthermore, a director of the Company shall not be liable to the Company
or its stockholders for monetary damages for breach of fiduciary duty as a
director, except for liability (a) for any breach of the director's duty of
loyalty to the Company or its stockholders, (b) for acts or omissions not in
good faith or which involve intentional misconduct or a knowing violation of
law, (c) for the unlawful payment of a
                                      II-1
<PAGE>   3
 
dividend, unlawful stock purchase or unlawful redemption, (d) for any
transaction from which the director derived an improper personal benefit, or
such exemption from liability or limitation thereof is not permitted under the
DGCL as currently in effect or as the same may hereafter be amended.
 
ITEM 21.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
     (a) Exhibits
 
   
<TABLE>
<CAPTION>
EXHIBIT
  NO.                              DESCRIPTION OF EXHIBIT
- --------                           ----------------------
<C>        <C>  <S>
  **2.1     --  Agreement and Plan of Merger among Birch Telecom, Inc.,
                Valu-Line Companies, Inc., Stephen L. Sauder, Paula K.
                Sauder, Richard L. Tidwell, Sarah J. Tidwell, Stormy Supiran
                and Carla S. Supiran.
  **3.1     --  Amended and Restated Certificate of Incorporation of Birch
                Telecom, Inc.
  **3.2     --  Restated Bylaws of Birch Telecom, Inc.
  **4.1     --  Indenture, dated as of June 23, 1998, between Birch Telecom,
                Inc. and Norwest Bank Minnesota, National Association, as
                trustee, relating to $115,000,000 aggregate principal amount
                of 14% Senior Notes due 2008.
  **4.2     --  Specimen Certificate of 14% Senior Notes due 2008 (the
                "Private Notes") (included in Exhibit 4.1 hereto).
  **4.3     --  Specimen Certificate of 14% Senior Notes due 2008 (the
                "Exchange Notes") (included in Exhibit 4.1 hereto).
  **4.4     --  Registration Rights Agreement, dated as of June 23, 1998,
                between Birch Telecom, Inc. and Lehman Brothers Inc. and BT
                Alex. Brown Incorporated.
  **4.5     --  Collateral Pledge and Security Agreement, dated as of June
                23, 1998 from Birch Telecom, Inc., Pledgor, to Norwest Bank
                Minnesota, National Association, Trustee.
  **5.1     --  Opinion of Latham & Watkins regarding the validity of the
                Exchange Notes.
 **10.1     --  Birch Telecom, Inc. Securities Purchase Agreement.
 **10.2     --  Birch Telecom, Inc. Purchasers Rights Agreement.
 **10.3     --  Employment Agreement dated as of February 10, 1998 between
                Birch Telecom, Inc. and David E. Scott.
 **10.4     --  Employment Agreement dated as of February 10, 1998 between
                Birch Telecom, Inc. and Gregory C. Lawhon.
 **10.5     --  Employment Agreement dated as of February 10, 1998 between
                Birch Telecom, Inc. and Gary L. Chesser.
 **10.6     --  Employment Agreement dated as of February 10, 1998 between
                Birch Telecom, Inc. and David W. Vranicar.
 **10.7     --  Employment Agreement dated as of February 10, 1998 between
                Birch Telecom, Inc. and Stephen L. Sauder.
 **10.8     --  Stock Purchase Agreement, dated as of May 21, 1998, among
                Birch Telecom, Inc., Dunn & Associates, Inc. and Patricia A.
                Dunn.
 **10.9     --  Stock Purchase Agreement, dated as of May 28, 1998, among
                Birch Telecom, Inc., Telesource Communications Inc., Michael
                W. Hicks and Marjorie G. Hicks.
 **10.10    --  Resale Agreement between Southwestern Bell Telephone Company
                and Birch Telecom of Missouri, Inc.
 **10.11    --  Resale Agreement between Southwestern Bell Telephone Company
                and Valu-Line of Kansas, Inc.
  +10.12    --  General Agreement between Birch Telecom, Inc. and Lucent
                Technologies Inc.
 **10.13    --  Interconnection Agreement under Sections 251 and 252 of the
                Telecommunications Act of 1996 by and between Southwestern
                Bell Telephone Company and Birch Telecom of Missouri, Inc.
  +10.14    --  Software License Agreement between Birch Telecom, Inc. and
                Saville Systems Inc.
 **12.1     --  Statement of Computation of Ratio of Earnings to Fixed
                Charges.
 **21.1     --  Subsidiaries of Birch Telecom, Inc.
 **23.1     --  Consent of Latham & Watkins (included in their opinion filed
                as Exhibit 5.1 hereto).
</TABLE>
    
 
                                      II-2
<PAGE>   4
 
   
<TABLE>
<CAPTION>
EXHIBIT
  NO.                              DESCRIPTION OF EXHIBIT
- --------                           ----------------------
<C>        <C>  <S>
 **23.2     --  Consent of Ernst & Young LLP.
 **24.1     --  Power of Attorney of Birch Telecom, Inc. (included on
                signature page to this Registration Statement on Form S-4).
 **25.1     --  Statement of Eligibility and Qualification (Form T-1) under
                the Trust Indenture Act of 1939 of Norwest Bank Minnesota,
                National Association.
 **27.1     --  Financial Data Schedule.
 **99.1     --  Form of Letter of Transmittal and related documents to be
                used in conjunction with the Exchange Offer.
</TABLE>
    
 
- ---------------
 * To be filed by amendment.
 
 + Indicates that portions of the exhibit have been omitted pursuant to a
   request for confidential treatment and such portions have been filed with the
   Commission separately.
** Previously filed
 
     (b) Financial Statement Schedules:
 
        ** Schedule II.  Valuation of Qualifying Accounts.
 
                                      II-3
<PAGE>   5
 
                               SCHEDULES OMITTED
 
     Schedules not listed above are omitted because of the absence of the
conditions under which they are required or because the information required by
such omitted schedules is set forth in the financial statements or the notes
thereto.
 
ITEM 22.  UNDERTAKINGS.
 
     The undersigned Registrant hereby undertakes that insofar as
indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to directors, officers and controlling persons of the Registrant
pursuant to the foregoing provisions described under Item 20 above, or
otherwise, the Registrant has been advised that in the opinion of the Securities
and Exchange Commission such indemnification is against public policy as
expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the
event that a claim of indemnification against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling person of the Registrant in the successful defense of any action,
suit paid by a director, officer or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted against the
Registrant by such director, officer or controlling person in connection with
the securities being registered, the Registrant will, unless in the opinion of
its counsel the matter has been settled by controlling precedent, submit to a
court of appropriate jurisdiction the question of whether such indemnification
by it is against public policy as expressed in the Securities Act of 1933 and
will be governed by the final adjudication of such issue.
 
     The undersigned Registrant hereby undertakes (i) to respond to requests for
information that is incorporated by reference into this Prospectus pursuant to
Items 4, 10(b), 11, or 13 of Form S-4, within one business day of receipt of
such request, and to send the incorporated documents by first class mail or
other equally prompt means. This undertaking also includes documents filed
subsequent to the effective date of the Registration Statement through the date
of responding to the request.
 
     The undersigned Registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in the Registration Statement when it became effective.
 
     The undersigned Registrant hereby undertakes to file, during any period in
which offers or sales are being made, a post-effective amendment to this
registration statement: (i) to include any prospectus required by Section
10(a)(3) of the Securities Act of 1933; (ii) to reflect in the prospectus any
facts or events arising after the effective date of the registration statement
(or the most recent post-effective amendment thereof) which, individually or in
the aggregate, represent a fundamental change in the information set forth in
the registration statement (notwithstanding the foregoing, any increase or
decrease in volume of securities offered (if the total dollar value of
securities offered would not exceed that which was registered) and any deviation
from the low or high end of the estimated maximum offering range may be
reflected in the form of prospectus filed with the Commission pursuant to Rule
424(b) if, in the aggregate, the changes in volume and price represent no more
than 20 percent change in the maximum aggregate offering price set forth in the
"Calculation of Registration Fee" table in the effective registration
statement); and (iii) to include any material information with respect to the
plan of distribution not previously disclosed in the registration statement or
any material change to such information in the registration statement.
 
     The undersigned Registrant hereby undertakes as follows: that prior to any
public reoffering of the securities registered hereunder through use of a
prospectus which is a part of this Registration Statement, by any person or
party who is deemed to be an underwriter within the meaning of Rule 145(c), the
undersigned undertakes that such reoffering prospectus will contain the
information called for by the applicable registration form with respect to
reofferings by persons who may be deemed underwriters, in addition to the
information called for by the other Items of the application form.
 
     The undersigned Registrant hereby undertakes that every prospectus: (i)
that is filed pursuant to the immediately preceding paragraph or (ii) that
purports to meet the requirements of Section l0(a)(3) of the Securities Act of
1933 and is used in connection with an offering of securities subject to Rule
415, will be filed
 
                                      II-4
<PAGE>   6
 
as a part of an amendment to the registration statement and will not be used
until such amendment is effective, and that, for purposes of determining any
liability under the Securities Act of 1933, each such post-effective amendment
shall be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.
 
     The undersigned Registrant hereby undertakes to remove from registration by
means of a post-effective amendment any of the securities being registered which
remain unsold at the termination of the Exchange Offer.
 
                                      II-5
<PAGE>   7
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act of 1933, as amended, the
Registrant has duly caused this Registration Statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Kansas
City, State of Missouri, on November 17, 1998.
    
 
                                          BIRCH TELECOM, INC.
 
                                          By:     /s/ GREGORY C. LAWHON
                                            ------------------------------------
                                                     Gregory C. Lawhon
                                                  Senior Vice President of
                                             Public Policy and General Counsel
 
     KNOW ALL MEN BY THESE PRESENTS, that each of the undersigned officers and
directors of Birch Telecom, Inc., a Delaware corporation (the "Company"), for
himself and not for one another, does hereby constitute and appoint David E.
Scott and Gregory C. Lawhon and each of them, his true and lawful
attorneys-in-fact and agents, with full power of substitution and resubstitution
for him and in his name, place and stead, in any and all capacities, to sign any
and all amendments to this Registration Statement with respect to the proposed
issuance, sale and delivery by the Company of 14% Senior Notes due 2008, or any
registration statement for this offering that is to be effective upon the filing
pursuant to rule 462(b) under the Securities Act of 1933, and to file the same,
with all exhibits thereto, and other documents in connection therewith, with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, as fully to all
intents and purposes as he might or could do in person, hereby ratifying and
confirming all that each of said attorneys-in-fact or his substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.
 
     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and as of the dates indicated.
 
   
<TABLE>
<CAPTION>
              SIGNATURE                                 TITLE                            DATE
              ---------                                 -----                            ----
<S>                                    <C>                                         <C>
 
                  *                    President and Chief Executive Officer       November 17, 1998
- ------------------------------------     (Principal Executive Officer)
           David E. Scott
 
*                                      Chief Financial Officer (Principal          November 17, 1998
- ------------------------------------     Financial and Accounting Officer)
Bradley A. Moline
 
*                                      Director                                    November 17, 1998
- ------------------------------------
Henry H. Bradley
 
*                                      Director                                    November 17, 1998
- ------------------------------------
Stephen L. Sauder
 
*                                      Director                                    November 17, 1998
- ------------------------------------
Ian R. N. Bund
 
*                                      Director                                    November 17, 1998
- ------------------------------------
David W. Bergmann
 
*By: /s/ GREGORY C. LAWHON
- ------------------------------------
     Gregory C. Lawhon
     Attorney-in-fact
</TABLE>
    
 
                                      II-6
<PAGE>   8
 
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
 EXHIBIT
   NO.                                   DESCRIPTION
 -------                                 -----------
<C>         <S>  <C>
   **2.1    --   Agreement and Plan of Merger among Birch Telecom, Inc.,
                 Valu-Line Companies, Inc., Stephen L. Sauder, Paula K.
                 Sauder, Richard L. Tidwell, Sarah J. Tidwell, Stormy Supiran
                 and Carla S. Supiran.
   **3.1    --   Amended and Restated Certificate of Incorporation of Birch
                 Telecom, Inc.
   **3.2    --   Restated Bylaws of Birch Telecom, Inc.
   **4.1    --   Indenture, dated as of June 23, 1998, between Birch Telecom,
                 Inc. and Norwest Bank Minnesota, National Association, as
                 trustee, relating to $115,000,000 aggregate principal amount
                 of 14% Senior Notes due 2008.
   **4.2    --   Specimen Certificate of 14% Senior Notes due 2008 (the
                 "Private Notes") (included in Exhibit 4.1 hereto).
   **4.3    --   Specimen Certificate of 14% Senior Notes due 2008 (the
                 "Exchange Notes") (included in Exhibit 4.1 hereto).
   **4.4    --   Registration Rights Agreement, dated as of June 23, 1998,
                 between Birch Telecom, Inc. and Lehman Brothers Inc. and BT
                 Alex. Brown Incorporated.
   **4.5    --   Collateral Pledge and Security Agreement, dated as of June
                 23, 1998 from Birch Telecom, Inc., Pledgor, to Norwest Bank
                 Minnesota, National Association, Trustee.
   **5.1    --   Opinion of Latham & Watkins regarding the validity of the
                 Exchange Notes.
  **10.1    --   Birch Telecom, Inc. Securities Purchase Agreement.
  **10.2    --   Birch Telecom, Inc. Purchasers Rights Agreement.
  **10.3    --   Employment Agreement dated as of February 10, 1998 between
                 Birch Telecom, Inc. and David E. Scott.
  **10.4    --   Employment Agreement dated as of February 10, 1998 between
                 Birch Telecom, Inc. and Gregory C. Lawhon.
  **10.5    --   Employment Agreement dated as of February 10, 1998 between
                 Birch Telecom, Inc. and Gary L. Chesser.
  **10.6    --   Employment Agreement dated as of February 10, 1998 between
                 Birch Telecom, Inc. and David W. Vranicar.
  **10.7    --   Employment Agreement dated as of February 10, 1998 between
                 Birch Telecom, Inc. and Stephen L. Sauder.
  **10.8    --   Stock Purchase Agreement, dated as of May 21, 1998, among
                 Birch Telecom, Inc., Dunn & Associates, Inc. and Patricia A.
                 Dunn.
  **10.9    --   Stock Purchase Agreement, dated as of May 28, 1998, among
                 Birch Telecom, Inc., Telesource Communications Inc., Michael
                 W. Hicks and Marjorie G. Hicks.
  **10.10   --   Resale Agreement between Southwestern Bell Telephone Company
                 and Birch Telecom of Missouri, Inc.
  **10.11   --   Resale Agreement between Southwestern Bell Telephone Company
                 and Valu-Line of Kansas, Inc.
   +10.12   --   General Agreement between Birch Telecom, Inc. and Lucent
                 Technologies Inc.
  **10.13   --   Interconnection Agreement under Sections 251 and 252 of the
                 Telecommunications Act of 1996 by and between Southwestern
                 Bell Telephone Company and Birch Telecom of Missouri, Inc.
   +10.14   --   Software License Agreement between Birch Telecom, Inc. and
                 Saville Systems Inc.
  **12.1    --   Statement of Computation of Ratio of Earnings to Fixed
                 Charges.
</TABLE>
    
<PAGE>   9
 
   
<TABLE>
<CAPTION>
 EXHIBIT
   NO.                                   DESCRIPTION
 -------                                 -----------
<C>         <S>  <C>
  **21.1    --   Subsidiaries of Birch Telecom, Inc.
  **23.1    --   Consent of Latham & Watkins (included in their opinion filed
                 as Exhibit 5.1 hereto).
  **23.2    --   Consent of Ernst & Young LLP.
  **24.1    --   Power of Attorney of Birch Telecom, Inc. (included on
                 signature page to this Registration Statement on Form S-4).
  **25.1    --   Statement of Eligibility and Qualification (Form T-1) under
                 the Trust Indenture Act of 1939 of Norwest Bank Minnesota,
                 National Association.
  **27.1    --   Financial Data Schedule.
  **99.1    --   Form of Letter of Transmittal and related documents to be
                 used in conjunction with the Exchange Offer.
</TABLE>
    
 
- ---------------
 * To be filed by amendment.
 
 + Indicates that portions of the exhibit have been omitted pursuant to a
   request for confidential treatment and such portions have been filed with the
   Commission separately.
 
** Previously filed

<PAGE>   1
                                                                   Exhibit 10.12

                                GENERAL AGREEMENT

                                     BETWEEN

                               BIRCH TELECOM, INC.

                                       AND

                            LUCENT TECHNOLOGIES INC.



   
PLEASE NOTE: CERTAIN TERMS CONTAINED HEREIN (REPRESENTED BY A "****") HAVE BEEN 
OMITTED PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT. SUCH TERMS HAVE BEEN 
FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION.
    
<PAGE>   2

      The mailing, delivery or negotiation of this Agreement by Lucent or its
agent or attorney shall not be deemed an offer by Lucent to enter into any
transaction or to enter into any other relationship, whether on the terms
contained herein or on any other terms. This Agreement shall not be binding upon
Lucent, nor shall Lucent have any obligations or liabilities or Customer any
rights with respect thereto, or with respect to the transactions contemplated by
the Agreement, unless and until the Agreement has been approved by the executive
officers and/or Board of Directors of Lucent and Lucent has executed and
delivered this Agreement. Until such execution and delivery of this Agreement,
Lucent may terminate all negotiation and discussion of the subject matter
hereof, without cause and for any reason, without recourse or liability.
<PAGE>   3

                                TABLE OF CONTENTS
                                GENERAL AGREEMENT

Section                                                                   Page
- -------                                                                   ----

1. ARTICLE I GENERAL TERMS AND CONDITIONS ...................................1
1.1 DEFINITIONS: ............................................................1
1.2 TERM OF AGREEMENT: ......................................................3
1.3 SCOPE: ..................................................................3
1.4 CUSTOMER RESPONSIBILITY: ................................................4
1.5 ORDERS: .................................................................4
1.6 CHANGES IN CUSTOMER'S ORDERS: ...........................................6
1.7 CHANGES IN PRODUCTS: ....................................................6
1.8 PRICES: .................................................................6
1.9 INVOICES AND TERMS OF PAYMENT: ..........................................7
1.10 PURCHASE MONEY SECURITY INTEREST: ......................................8
1.11 TAXES: .................................................................9
1.12 TRANSPORTATION AND PACKING: ............................................9
1.13 TITLE AND RISK OF LOSS: ................................................9
1.14 WARRANTY: ..............................................................9
1.15 INFRINGEMENT: .........................................................12
1.16 CUSTOMER'S REMEDIES: ..................................................13
1.17 USE OF INFORMATION: ...................................................14
1.18 DOCUMENTATION: ........................................................14
1.19 5ESS(R) DOCUMENTATION: ................................................14
1.20 NOTICES: ..............................................................15
1.21 FORCE MAJEURE: ........................................................15
1.22 ASSIGNMENT: ...........................................................16
1.23 TERMINATION OF AGREEMENT FOR BREACH: ..................................16
1.24 ARBITRATION: ..........................................................17
1.25 NON-SOLICITATION: .....................................................17
1.26 INDEPENDENT CONTRACTOR: ...............................................17
1.27 RELEASES VOID: ........................................................17
1.28 PUBLICITY: ............................................................17
1.29 CONFIDENTIALITY OF AGREEMENT: .........................................18
1.30 AMENDMENTS: ...........................................................18
1.31 SEVERABILITY: .........................................................18
1.32 WAIVER: ...............................................................18
1.33 SURVIVAL: .............................................................18
1.34 SECTION HEADINGS: .....................................................19
1.35 CHOICE OF LAW: ........................................................19
1.36 AMBIGUITIES: ..........................................................19
2. .........................................................................20
2. ARTICLE II PROVISIONS APPLICABLE TO LICENSED MATERIALS ..................20
2.1 LICENSE FOR LICENSED MATERIALS: ........................................20
2.2 CHANGES IN LICENSED MATERIALS: .........................................20
2.3 CANCELLATION OF LICENSE: ...............................................20
2.4 OPTIONAL SOFTWARE FEATURES: ............................................21
2.5 ADDITIONAL RIGHTS IN LICENSED MATERIALS: ...............................21
2.6 INSTALLATION OF SOFTWARE: ..............................................21
2.7 SOFTWARE ACCEPTANCE: ...................................................21
2.8 MODIFICATIONS BY CUSTOMER TO USER CONTROLLED MODULES: ..................22
2.9 ADDITIONAL SOFTWARE RIGHTS FOR 5ESS(R) SWITCH LICENSED MATERIALS .......22
<PAGE>   4

Section                                                                   Page
- -------                                                                   ----

ARTICLE III
PROVISIONS APPLICABLE TO ENGINEERING, INSTALLATION AND OTHER SERVICES ......24
3.1 SITE REQUIREMENTS: .....................................................24
3.2 ADDITIONAL ITEMS TO BE PROVIDED BY CUSTOMER: ...........................25
3.3 ITEMS TO BE FURNISHED BY SELLER ........................................28
3.3.1 ENGINEERING: .........................................................28
3.3.2 INSTALLATION: ........................................................28
3.4 ACCEPTANCE .............................................................31
3.5 WORK OR SERVICES PERFORMED BY OTHERS: ..................................32
4. ARTICLE IV ENTIRE AGREEMENT: ............................................33
4.1 ENTIRE AGREEMENT .......................................................33
<PAGE>   5

This General Agreement Number LNM092697DASBTI (hereinafter "General Agreement"
or "Agreement") is made effective the _______day of __________________,19____
("Effective Date") by and between Birch Telecom, Inc., a corporation, with
offices located at 1000 Walnut Street, Suite 1220, Kansas City MO 64106
(hereinafter "Customer"), and Lucent Technologies Inc., a Delaware corporation,
acting through its Network Systems Group, with offices located at 600 Mountain
Avenue, Murray Hill, New Jersey 07974 (hereinafter "Seller").

WHEREAS, Seller desires to supply to Customer and Customer desires to procure
from Seller the products and services described herein, pursuant to the terms
and conditions contained herein.

NOW, THEREFORE, in consideration of the mutual promises herein contained and
other good and valuable consideration, the receipt and sufficiency of which is
hereby acknowledged, the parties intending to be lawfully bound agree as
follows:

                                  1. ARTICLE I

                          GENERAL TERMS AND CONDITIONS

1.1 DEFINITIONS:

For the purpose of this Agreement, the following definitions will apply:

(a)   "Affiliate" of a corporation means its Subsidiaries, any company of which
      it is a Subsidiary, and other Subsidiaries of such company.

(b)   "Bill and Hold Products" means Products, Licensed Materials, and/or parts
      thereto which the Customer requests and Seller agrees to inventory or
      warehouse, at a price mutually agreed to by the parties, until final
      delivery to the Customer.

(c)   "Customer Price List" means Sellers published "Ordering and Price Guides"
      or other price notification releases furnished by Seller for the purpose
      of communicating Sellers prices or pricing related information to
      Customer; however, this does not include firm price quotations.

(d)   "Cutover" means, the verification by Seller and Customer of actual usage
      over the installed Products. This function occurs after Turnover and is
      not performed by Seller unless specifically requested by Customer and is
      usually covered under a separate Professional Services Agreement.

(e)   "Delivery Date" means the date required under this Agreement by which all
      deliverables ordered by Customer are to be delivered to the destination
      specified in the order.

(f)   "Designated Processor" means the Product for which licenses to Use
      Licensed Materials are granted.


                         Lucent Technologies Proprietary

                                        1
<PAGE>   6

(g)   "Firmware" means a combination of (1) hardware and (2) Software
      represented by a pattern of bits contained in such Hardware.

(h)   "Fit" means physical size or mounting arrangement (e.g., electrical or
      mechanical connections).

(i)   "Form means physical shape.

(j)   "Function" means the operation the Product performs.

(k)   "Hazardous Materials" means material designated as a "hazardous chemical
      substance or mixture" pursuant to Section 6 of the Toxic Substance Control
      Act; a "hazardous material" as defined in the Hazardous Materials
      Transportation Act (49 U.S.C.1801, et seq.); "hazardous substance" as
      defined in the Occupational Safety and Health Act Hazard Communication
      Standard (29 CFR 1910.1200) or as defined in the Comprehensive
      Governmental Response, Compensation and Liability Act, 42 U.S.C. 9601
      (14), or other pollutant or contaminant.

(l)   "Installation Complete Date" means the date on which OS Software or
      transmission systems Software is installed by Seller at the location
      specified in the order and determined by Seller to be ready for Use by
      Customer.

(m)   "Licensed Materials" means the Software and Related Documentation for
      which licenses are granted by Seller under this Agreement; no Source Code
      versions of Software are included in Licensed Materials.

(n)   "OS Software" means the object code Software, for operations systems,
      embodied in any medium, including firmware.

(o)   "Product" means equipment hardware, and parts thereof, but the term does
      not mean Software whether or not such Software is part of Firmware.

(p)   "Related Documentation" means materials useful in connection with Software
      such as, but not limited to, flowcharts, logic diagrams and listings,
      program descriptions and Specifications.

(q)   "Sellers Standard Charges" means Sellers applicable rates and charges for
      labor and materials as determined from Sellers Customer Price Lists and
      other pricing information provided by Seller to Customer, less any
      discounts applicable thereto.

(r)   "Services" means any engineering, installation or repair services to be
      performed by Seller under this Agreement, but the term "Services" does not
      include any services provided by the Professional Services Division of
      Seller's Network Systems Group unless otherwise expressly agreed to in
      writing by the parties.


                         Lucent Technologies Proprietary

                                        2
<PAGE>   7

(s)   "Software" means a computer program consisting of a set of logical
      instructions and tables of information that guide the functioning of a
      processor. Such program may be contained in any medium whatsoever,
      including hardware containing a pattern of bits, representing such
      program. However, the term "Software" does not mean or include such
      medium.

(t)   "Source Code" means any version of Software incorporating high-level or
      assembly language that generally is not directly executable by a
      processor.

(u)   "Specifications" means Seller's or its vendor's technical specifications
      for particular Products or Software furnished hereunder.

(v)   "Statement of Work" (SOW) means the detailed description of the actual
      Services to be performed.

(w)   "Subsidiary" of a company means a corporation the majority of whose shares
      or others securities entitled to vote for election of directors is now or
      hereafter owned or controlled by such company either directly or
      indirectly, but such corporation shall be deemed to be a Subsidiary of
      such company only as long as such ownership or control exists.

(x)   "Turnover" means, with respect to Products and Software to be installed by
      Seller, the point at which Seller has completed the installation and
      notifies Customer that the installation is completed and that Seller has
      confirmed that the installed Product and/or Software comply with Seller's
      specifications. This term does not mean Cutover which is separately
      defined herein.

(y)   "Use," with respect to Licensed Materials means loading the Licensed
      Materials, or any portion thereto into a Designated Processor for
      execution of the instructions and tables contained in such Licensed
      Materials.

1.2 TERM OF AGREEMENT:

      The term of this Agreement shall commence on the Effective Date and shall
continue in effect thereafter until the later of (i) five (5) years following
the Effective Date, or (ii) five (5) years following the Turnover of the last
5ESS Switch or the last initial RSM, ORM or EXM purchased by Customer under this
Agreement within five (5) years following the Effective Date ("Term").

1.3 SCOPE:

(a) The terms and conditions of this Agreement shall apply to all transactions
occurring during the Term whereby Products, Licensed Materials or Services are
provided by Seller's Network Systems Group to Customer. Except as expressly
stated in this Agreement, this Agreement shall not apply to any products,
licensed materials or services offered for supply by any of the following
business units or divisions of Seller: Microelectronics, Consumer Products,
Business Communications Systems, Network Wireless division of Network Systems
Group, or the Professional Services division of Network Systems Group. By
placing orders with Seller,


                         Lucent Technologies Proprietary

                                        3
<PAGE>   8

including change and/or addition orders, or using any Products, Licensed
Materials, or Services provided hereunder, Customer agrees to be bound to the
terms of this Agreement. Customer understands and agrees that all Products,
Licensed Materials, or Services furnished by Seller to Customer pursuant to this
Agreement shall be for Customer's own internal use in the United States only.
Products, Licensed Materials or Services furnished under this Agreement are not
being supplied for resale and shall not be resold by Customer.

(b) All firm price quotes made by Seller to Customer shall incorporate the terms
and conditions of this Agreement. Any conflicting terms and conditions of a firm
price quote, signed by an authorized representative of Seller and Customer and
dated after the effective date of this Agreement, will supersede the comparable
terms of this Agreement.

1.4 CUSTOMER RESPONSIBILITY:

      Customer shall, at no charge to Seller, provide Seller with such technical
information, data, technical support or assistance as may reasonably be required
by Seller to fulfill its obligations under this Agreement, any subordinate
agreement or order. If Customer fails to provide the technical information,
data, support or assistance, Seller shall be discharged from any such
obligation.

1.5 ORDERS:

(a) All orders submitted by Customer for Products, Licensed Materials, and
Services shall incorporate and be subject to the terms and conditions of this
Agreement. Any order submitted pursuant to a firm price quotation shall include
such firm price quotation number. All orders, including electronic orders, shall
contain the information as detailed below:

      (i)   Complete and correct ship to and bill to address;
      (ii)  The quantity and type of Products, Licensed Materials, and Services
            being ordered;
      (iii) The price;
      (iv)  The requested Delivery Date in accordance with Seller's standard
            interval for the Products, Licensed Materials, and Services being
            ordered. In the event a non standard interval has been mutually
            agreed to by the parties, reference to the specific document
            agreeing to the interval needs to be included;
      (v)   The requested completion date in accordance with Seller's standard
            interval for the Products, Licensed Materials, and Services being
            ordered;
      (vi)  Reference to this Agreement;
      (vii) If an order is for Bill and Hold Products, the phrase "Bill and
            Hold" must be clearly and conspicuously stated in the order.

      The requested Delivery Date of any order must be in accordance with
Seller's published standard order intervals in effect on the date of receipt of
order by Seller. The current standard order interval is contained herein. Seller
reserves the right to change such standard order intervals without notification
to Customer but only with respect to future orders. Such change shall not affect
orders accepted by Seller prior to the change to the standard order intervals.
Electronic orders shall be binding on Customer notwithstanding the absence of a
signature. All


                         Lucent Technologies Proprietary

                                        4
<PAGE>   9

orders are subject to acceptance by Seller. Once an order is accepted by Seller,
Seller shall have the right to place such order on hold, delay shipment, and/or
reject such order only due to the breach or default by Customer of its
obligations under this Agreement or Customers insufficient credit limits. Terms
and conditions on Customers purchase order which are inconsistent with the
provisions of this Agreement and any pre-printed terms and conditions on
Customer's purchase order shall be ineffective, void and of no force and effect.
Orders shall be sent to the following address:

     Lucent Technologies Inc.
     Customer Service
     6701 Roswell Road
     Building D - 3rd Floor
     Atlanta, GA 30328-2501

(b) If an order is for Bill and Hold Products, the phrase "Bill and Hold" must
clearly and conspicuously appear on the Order. In the event Customer orders Bill
and Hold Products, Seller will defer final shipment of such Product(s) until the
final ship date indicated on the purchase order or such final ship date as is
mutually agreed between the parties provided that in no event shall Seller be
obligated to hold Bill and Hold Products longer than one (1) year from the date
of the applicable purchase order. Customer agrees to pay to Seller a monthly
stocking fee for any Bill and Hold Products held beyond the final ship date
indicated on the purchase order or otherwise mutually agreed to date.

<TABLE>
<CAPTION>
================================================================================
          SELLER'S MANUFACTURED PRODUCTS AND SOFTWARE STANDARD ORDERING
                            INTERVALS (Furnish Only)
- --------------------------------------------------------------------------------
<S>                                               <C>                           
- --------------------------------------------------------------------------------
Switching Systems Products                        Twenty Two Weeks
- --------------------------------------------------------------------------------
E-AIU System Products                             TBD
- --------------------------------------------------------------------------------
Central Office Power Equipment                    Twenty Two Weeks
- --------------------------------------------------------------------------------
Transmission Systems Products:
- --------------------------------------------------------------------------------
DACS-IV 2000                                      Two Weeks
- --------------------------------------------------------------------------------
FT-2000 OC-48                                     Two Weeks
- --------------------------------------------------------------------------------
DDM-2000 OC-3/OC-12                               Two Weeks
- --------------------------------------------------------------------------------
DDM-2000 FIBER REACH                              Two Weeks
- --------------------------------------------------------------------------------
SLC 2000 Access System                            One Week
- --------------------------------------------------------------------------------
SLC 2000 MSDT                                     One Week
- --------------------------------------------------------------------------------
SLC Series 5 (System and Plug In)                 Two Weeks
- --------------------------------------------------------------------------------
Other Transmission Products (i.e., DDM Plus,      One Week
Repeater Cases)
- --------------------------------------------------------------------------------
Network Cable Systems Products                    Contact Lucent Sales Person
- --------------------------------------------------------------------------------
All Other Products                                Contact Lucent Sales Person
- --------------------------------------------------------------------------------
Software:
- --------------------------------------------------------------------------------
Switching System Software                         Same as associated Product
- --------------------------------------------------------------------------------
Transmission Systems Software                     Same as associated Product
================================================================================
</TABLE>


                         Lucent Technologies Proprietary

                                        5
<PAGE>   10

<TABLE>
<CAPTION>
================================================================================
        SELLER'S MANUFACTURES PRODUCTS AND SOFTWARE STANDARD ORDERING
                            INTERVALS (Furnish Only)
- --------------------------------------------------------------------------------
<S>                                          <C>                                
- --------------------------------------------------------------------------------
Operations Systems Software                  Same as associated Product
- --------------------------------------------------------------------------------
All other Software                           Contact Lucent Sales Person
================================================================================
</TABLE>

1.6 CHANGES IN CUSTOMER'S ORDERS:

      Changes by Customer to an order which has been previously accepted by
Seller (a "Change Order") are subject to acceptance by Seller. Change Orders
shall be treated as a separate order and shall follow Seller's change order
process. In the event Seller accepts a Change Order and such change affects
Seller's ability to meet its obligations under the original order, any price (or
discount, if applicable), shipment date or Services completion date quoted by
Seller with respect to such original order is subject to change. Seller will
provide to Customer written quotations and expected completion dates for any
requested Change Orders.

1.7 CHANGES IN PRODUCTS:

      Prior to shipment, Seller may at any time make changes in Products. Seller
may modify the Product(s) drawings and Specifications or substitute Products of
later design. Seller agrees that such modifications or substitutions will not
impact upon Form, Fit, or Function under normal and proper use of the ordered
Product as provided in Seller's Specifications. With respect to changes,
modifications, and substitutions that do impact the Form, Fit, or Function of
the ordered Product, Seller shall notify Customer in writing thirty (30) days
prior to the date the changes become effective. In the event the Customer
objects to the change, Customer shall notify Seller within thirty (30) days from
the date of notice. Upon receipt of notice, Seller shall not furnish modified
Products to Customer on any orders in process with respect to which Customer has
objected to the modifications made by Seller.

1.8 PRICES:

(a) To the extent Customer's order is subject to a firm price quotation made by
Seller, prices, fees and charges (hereinafter "Prices") shall be as set forth in
Seller's firm price quotation. Prices contained in firm price quotations for any
Product or Licensed Materials described in Addendum One to this Agreement shall
not exceed Prices determined in accordance with Addendum One.

(b) Except as expressly stated in this Agreement, or in accordance with Addendum
One to this Agreement, in all other cases, Prices shall be those contained in
Seller's Customer Price Lists. The applicable Customer Price List shall be the
issue that is in effect on the date of Seller's receipt of the order. The
requested Delivery Date of such order must be in accordance with Seller's
published shipping or planning interval or thirty (30) days from the date of
order receipt, whichever is longer. Prices for Products and license fees for
Licensed Materials to be shipped, or Services to be performed beyond the
published shipping interval will be based upon


                         Lucent Technologies Proprietary

                                        6
<PAGE>   11

the date required for order entry by Seller in accordance with Customer's
requested date and applying the price from the Customer Price List as of that
date.

(c) Seller may amend its Prices, other than those subject to firm price
quotations and, except when applicable Prices are adjusted for changes in raw
material prices, Seller agrees to provide thirty (30) days written notice of any
increase in Prices contained in Seller's Customer Price Lists. When prices
contained in Seller's Customer Price Lists are adjusted for changes in raw
material prices, Seller's new Prices will be revised effective the first day of
any given month. The basis for raw material adjustments will be provided to
Customer upon request.

1.9 INVOICES AND TERMS OF PAYMENT:

(a) Products and Licensed Materials (including transportation charges and taxes,
if applicable) will be billed by Seller when shipped, or as soon thereafter as
practicable. Engineering will be billed with the initial shipment of Product(s).
Installation will be billed as performed or as soon thereafter as practical.
Payment in full for all invoiced or billed amounts is due for receipt by Seller
within thirty (30) days of the invoice or bill date. All payments other than EFT
payments described in subsection (c) below shall be forwarded to Seller at the
following address:

If by regular mail:      Lucent Technologies Inc.
                         P.O. Box 100317
                         Atlanta, GA 30384-0317
                         Attn: Accounts Receivable

If by overnight courier: NationsBank
                         Account Number 143049062
                         6000 Feldwood Road
                         P.O. Box 100317
                         College Park, GA 30349

(b) Bill and Hold Products will be invoiced by Seller upon the earlier of (i)
completion of assembly at Seller's facility or (ii) upon stocking at Customer's
designated location. Such invoice will serve as Seller's notification that Bill
and Hold Products are complete and ready to be released by Customer for final
shipment. The date of the invoice, which shall be the stocking date, shall be
deemed the warranty start date.

(c) Customer shall have the right to pay any amounts due Seller hereunder using
Electronic Funds Transfer ("EFT") Seller reserves the right to cancel the
Customer's right to pay using EFT with thirty (30) days notice to the Customer.

(d) EFT payments by Customer shall be made to the following account of Seller or
such other account as is subsequently designated by Seller in writing and,
concurrent with the EFT payment, Customer shall fax a copy of the [federal wire
instructions/remittal]to Seller's Manager Cash Operations at 770-7504288.


                         Lucent Technologies Proprietary

                                        7
<PAGE>   12

Customer will EFT funds to the following location:

       Chase Manhattan Bank
       New York, New York
       Lucent Technologies Inc.
       ACCT. 910144-9099
       ABA 021000021

(e) If Customer fails to pay any invoiced amount when due, the invoiced amount
will be subject to a late payment charge at the rate of one and one half percent
(1-1/2%) per month, or portion thereof, of the amount due (but not to exceed the
maximum lawful rate). Customer agrees to pay Seller's attorneys' fees and other
costs incurred by Seller in the collection of any amounts invoiced hereunder.

(f) Customer agrees to review invoice upon receipt and if necessary, initiate
billing inquires within fifteen (15) days of receipt of invoice. Inquiries can
be initiated in writing or by telephone and shall be directed to the address or
telephone number identified on the invoice.

(g) A sample invoice is provided in Exhibit A for informational purposes only.

1.10 PURCHASE MONEY SECURITY INTEREST:

(a) Seller reserves and Customer agrees that Seller shall have a purchase money
security interest in all Products and Licensed Materials heretofore supplied or
hereafter supplied to Customer by Seller under this Agreement until any and all
payments and charges due Seller under this Agreement including, without
limitation, shipping and installation charges, are paid in full. Seller shall
have the right, at any time during the Term and without notice to Customer, to
file in any state or local jurisdiction such financing statements (e.g., UCC-l
financing statements) as Seller deems necessary to perfect its purchase money
security interest hereunder. Upon request by Seller, Customer hereby agrees to
execute all documents necessary to secure Seller's purchase money security
interest including without limitation, UCC-1 or such other documents Seller
deems reasonably necessary. Notwithstanding the foregoing obligation of Customer
to execute required security interest documents, Customer hereby irrevocably
appoints Seller as its attorney-in-fact for purposes of executing and filing
such financing statements and such other documents prepared by Seller or its
designated agent for purposes of perfecting Seller's security interest
hereunder. Customer also agrees that this Agreement may be filed by Seller in
any state or local jurisdiction as a financing statement (or as other evidence
of the Seller's purchase money security interest).

(b) In addition to any other remedy available to Seller as provided herein, by
common law and by statute, Seller may exercise its right to reclaim all Products
and Licensed Materials sold to Customer pursuant to UCC-702 or such other
applicable provision as it may exist from state to state, upon discovery of
Customer's insolvency, provided Seller demands in writing reclamation of such
goods before ten (10) days after receipt of such goods by Customer, or if such
ten (10) day period expires after the commencement of a bankruptcy case, before
twenty (20) days after receipt of such goods by the Customer.


                         Lucent Technologies Proprietary

                                        8
<PAGE>   13

1.11 TAXES:

      Customer shall be liable for all taxes and related charges, however
designated, imposed upon or based upon the provision, sale, license or Use of
Products, Licensed Materials or Services levied upon the sale, excluding taxes
on Seller's net income, unless Customer provides Seller with a valid tax exempt
certificate. Seller's failure to collect taxes in accordance herewith shall not
be deemed to be an authorization to resell Products or Services or sublicense
Licensed Materials.

1.12 TRANSPORTATION AND PACKING:

      Seller, in accordance with its normal practices, shall arrange for prepaid
transportation to destinations in the contiguous United States and shall invoice
transportation charges to Customer. Premium transportation will be used only at
Customer's request. Seller shall pack Products for delivery in the contiguous
United States, in accordance with its standard practices for domestic shipments.
Where, in order to meet Customer's requests, Seller packs Products in other than
its normal manner or for destinations outside the contiguous United States,
Customer shall pay the additional charges for such packing and transportation.

1.13 TITLE AND RISK OF LOSS:

      Title to Products only and risk of loss to Products and Licensed Materials
shall pass to Customer upon delivery to the Customer. Title to all Licensed
Materials (whether or not part of Firmware) furnished by Seller, and all copies
thereof made by Customer, including translations, compilations, and partial
copies are, and shall remain, the property of Seller. Title to Products only and
risk of loss for Products and Licensed Material for Bill and Hold Products shall
pass to Customer upon stocking at Seller's facility or Customer's designated
location, whichever occurs earlier. Customer shall notify Seller promptly of any
claim with respect to loss which occurs while Seller has the risk of loss and
shall cooperate in every reasonable way to facilitate the settlement of any
claim. For purposes of this section, "delivery" shall mean the point at which
Seller or Seller's supplier or agent turns over possession of the Product or
Licensed Materials to Customer, Customers employee, Customer's designated
carrier, Customer's warehouse, or other Customer's agent and not necessarily the
final destination shown on the order.

1.14 WARRANTY:

(a) Seller warrants to Customer only, that during the applicable Warranty
Periods set forth below (i) Seller's manufactured products (exclusive of
Software) will be free from defects in material and workmanship and will conform
to Seller's Specifications for such Products which Specifications shall be
included in the documentation to be provided to Customer in accordance with
Articles 1.18 and 1.19 of this Agreement; (ii) Software developed by Seller will
be free from those defects which materially affect performance in accordance
with Seller's Specifications which Specifications shall be included in the
documentation to be provided to Customer in accordance with Articles 1.18 and
1.19 of this Agreement; and (iii) Services will be performed in


                         Lucent Technologies Proprietary

                                        9
<PAGE>   14

a workmanlike manner and in accordance with good usage and accepted practices in
the community in which Services are provided. With respect to Products or
Software or partial assembly of Products furnished by Seller but neither
manufactured by Seller nor purchased by Seller pursuant to its procurement
specifications ("Vendor Items"), Seller, to the extent permitted, does hereby
assign to Customer the warranties given to Seller by its vendor(s) of such
Vendor Items.

(b) For purposes of this Agreement the term "Warranty Period" means the period
of time listed below which, unless otherwise stated, commences on date of
shipment or, if installed by Seller the earliest of either: (i) acceptance by
Customer; or (ii) thirty (30) days from the date Seller submits its notice of
completion of its installation; or (iii) the date Customer first puts Products
and/or Licensed Materials into service. For Bill and Hold Products the warranty
will commence upon the date of stocking at Sellers facility or Customer's
designated location. The Warranty Period for any Product or Software (or part
thereof) repaired or replaced under this Section 1.14 is the period listed in
the right column below or the unexpired portion of the new Product Warranty
Period, whichever is longer.

<TABLE>
<CAPTION>
================================================================================
                   SELLER'S MANUFACTURED PRODUCTS AND SOFTWARE
                                 WARRANTY PERIOD
- --------------------------------------------------------------------------------
                                                 Base
                                                 ----
                                                 Period           Repaired
                                                 ------           --------
                                                 New              Product or
                                                 ---              ----------
                                                 Product          Part
                                                 -------          ----
- --------------------------------------------------------------------------------
<S>                                              <C>              <C>
Switching Systems Products                         ****                 ****
- --------------------------------------------------------------------------------
E-AIU Systems Products                             ****                 ****
- --------------------------------------------------------------------------------
Central Office Power Equipment:
- --------------------------------------------------------------------------------
Associated with Switching Systems                  ****                 ****
- --------------------------------------------------------------------------------
Not Associated with Switching Systems              ****                 ****
- --------------------------------------------------------------------------------
Transmission Systems Products:
- --------------------------------------------------------------------------------
DACS-IV 2000,                                      ****                 ****
- --------------------------------------------------------------------------------
FT-2000 OC-48                                      ****                 ****
- --------------------------------------------------------------------------------
DDM-2000 OC-3/OC-12                                ****                 ****
- --------------------------------------------------------------------------------
DDM-2000 FIBER REACH                               ****                 ****
- --------------------------------------------------------------------------------
SLC 2000 Access System                             ****                 ****
- --------------------------------------------------------------------------------
SLC 2000 MSDT                                      ****                 ****
- --------------------------------------------------------------------------------
SLC Series 5 (System and Plug In)                  ****                 ****
- --------------------------------------------------------------------------------
Other Transmission Products (i.e., DDM Plus        ****                 ****
Repeater Cases)
- --------------------------------------------------------------------------------
Network Cable Systems Products                     ****                 ****
- --------------------------------------------------------------------------------
All Other Products                                 ****                 ****
- --------------------------------------------------------------------------------
Software:
- --------------------------------------------------------------------------------
Switching System Software                          ****                 ****
- --------------------------------------------------------------------------------
Transmission Systems Software                      ****                 ****
================================================================================
</TABLE>


                         Lucent Technologies Proprietary

                                       10
<PAGE>   15

<TABLE>
<CAPTION>
================================================================================
                   SELLER'S MANUFACTURED PRODUCTS AND SOFTWARE
                                 WARRANTY PERIOD
- --------------------------------------------------------------------------------
                                                 Base
                                                 ----
                                                 Period           Repaired
                                                 ------           --------
                                                 New              Product or
                                                 ---              ----------
                                                 Product          Part
                                                 -------          ----
- --------------------------------------------------------------------------------
<S>                                              <C>              <C>           
Operations Systems Software                        ****                 ****
- --------------------------------------------------------------------------------
All Other Software                                 ****                 ****
================================================================================
</TABLE>

(c) If, under normal and proper use, a defect or non-conformity appears in
Seller's manufactured products or Software during the applicable Warranty Period
and Customer promptly notifies Seller in writing of such defect or
non-conformance and follows Seller's instructions regarding return of defective
or non-conforming Product or Software, Seller, at its option, will either
repair, replace or correct the same without charge at its manufacturing or
repair facility or provide a refund or credit based on the original purchase
price or license fee. If engineering or installation Services prove not to be
performed as warranted within a six (6) month period commencing on the date of
completion of the Services, Seller, at its option, either will correct the
defect or non-conforming Services or render a full or pro-rated refund or credit
based on the original charges for the Services. No Product or Software will be
accepted for repair or replacement without the written authorization of and in
accordance with instructions of Seller. Customer's removal and reinstallation
expenses as well as any transportation expenses associated with returning such
Product or Software to Seller shall be borne by Customer. Seller shall pay the
costs of transportation of the repaired or replacing Product or Software to any
United States destination designated by Customer. If Seller determines that
returned Product or Software is not defective, Customer shall pay Seller's costs
of handling, inspecting, testing and transportation and, if applicable, travel
and related expenses. In repairing or replacing any Product, part of Product, or
Software medium under this warranty, Seller may use either new, remanufactured,
reconditioned, refurbished or functionally equivalent Products or parts.
Replaced Products or parts shall become Seller's property.

(d) With respect to Seller's manufactured products which Seller has ascertained
are not readily returnable for repair, Seller, at its option, may elect to
repair or replace the Products at Customer's site. Customer, at its expense,
shall make the Products accessible for repair or replacement and shall restore
the site after Seller has completed its repairs or replacement.

(e) Seller makes no warranty with respect to defective conditions or
non-conformities resulting from any of the following: Customer's modifications,
misuse, neglect, accident or abuse; Customer's improper wiring, repairing,
splicing, alteration, installation, storage or maintenance; use in a manner not
in accordance with Seller's or its vendor's Specifications, or operating
instructions or failure of Customer to apply previously applicable Seller's
modifications or corrections. In addition, Seller makes no warranty with respect
to Products which have had their serial numbers or month and year of manufacture
removed, altered and with respect to expendable items, including, without
limitation, fuses, light bulbs, motor brushes and the like. No warranty is made
that Software will run uninterrupted or error free, and in addition Seller makes
no warranty with respect to defects related to Customer's data base errors.


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(f) THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER EXPRESS
AND IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMER'S SOLE AND
EXCLUSIVE REMEDY SHALL BE SELLER'S OBLIGATION TO REPAIR, REPLACE, CREDIT, OR
REFUND AS SET FORTH ABOVE IN THIS WARRANTY.

1.15 INFRINGEMENT:

(a) In the event of any claim, action, proceeding or suit by a third party
against Customer alleging an infringement of any United States patent, United
States copyright, or United States trademark, or a violation in the United
States of any trade secret or proprietary rights by reason of the use, in
accordance with Seller's Specifications, of any Product or Licensed Materials
furnished by Seller to Customer under this Agreement, Seller, at its expense,
will defend Customer, subject to the conditions and exceptions stated below.
Seller will reimburse Customer for any cost, expense or attorneys' fees,
incurred at Seller's written request or authorization, and will indemnify
Customer against any liability assessed against Customer by final judgment on
account of such infringement or violation arising out of such use.

(b) If Customer's use shall be enjoined or in Seller's opinion is likely to be
enjoined, Seller will, at its expense and at its option, either (1) replace the
enjoined Product or Licensed Materials furnished pursuant to this Agreement with
a suitable substitute free of any infringement; (2) modify it so that it will be
free of the infringement; or (3) procure for Customer a license or other right
to use it. If none of the foregoing options are practical, Seller will remove
the enjoined Product or Licensed Materials and refund to Customer any amounts
paid to Seller therefor less a reasonable charge for any actual period of use by
Customer.

(c) Customer shall give Seller prompt written notice of all such claims,
actions, proceedings or suits alleging infringement or violation and Seller
shall have full and complete authority to assume the sole defense thereof,
including appeals, and to settle same. Customer shall, upon Seller's request and
at Seller's expense, furnish all information and assistance available to
Customer and cooperate in every reasonable way to facilitate the defense and/or
settlement of any such claim, action, proceeding or suit.

(d) No undertaking of Seller under this section shall extend to any such alleged
infringement or violation to the extent that it: (1) arises from adherence to
design modifications, specifications, drawings, or written instructions which
Seller is directed by Customer to follow, but only if such alleged infringement
or violation does not reside in corresponding commercial Product or Licensed
Materials of Seller's design or selection; or (2) arises from adherence to
instructions to apply Customer's trademark, trade name or other company
identification; or (3) resides in a Product or Licensed Materials which are not
of Seller's origin and which are furnished by Customer to Seller for use under
this Agreement; or (4) relates to uses of Product or Licensed Materials provided
by Seller in combinations with other Product or Licensed Materials, furnished
either by Seller or others, which combination was not installed, recommended or
otherwise approved by Seller. In the foregoing cases numbered (1) through


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<PAGE>   17

(4), Customer will defend and save Seller harmless, subject to the same terms
and conditions and exceptions stated above, with respect to the Seller's rights
and obligations under this section.

(e) The liability of Seller and Customer with respect to any and all claims,
actions, proceedings or suits by third parties alleging infringement of patents,
trademarks or copyrights or violation of trade secrets or proprietary rights
because of, or in connection with, any Products or Licensed Materials furnished
pursuant to this Agreement shall be limited to the specific undertakings
contained in this section.

1.16 CUSTOMER'S REMEDIES:

(a) CUSTOMER'S EXCLUSIVE REMEDIES AND THE ENTIRE LIABILITY OF SELLER, ITS
AFFILIATES AND THEIR EMPLOYEES, AND AGENTS, AND ITS SUPPLIERS FOR ANY CLAIM,
LOSS, DAMAGE OR EXPENSE OF CUSTOMER OR ANY OTHER ENTITY ARISING OUT OF THIS
AGREEMENT, OR THE USE OR PERFORMANCE OF ANY PRODUCT, LICENSED MATERIALS, OR
SERVICES, WHETHER IN AN ACTION FOR OR ARISING OUT OF BREACH OF CONTRACT, TORT,
INCLUDING NEGLIGENCE, INDEMNITY, OR STRICT LIABILITY, SHALL BE AS FOLLOWS:

      1) FOR INFRINGEMENT--THE REMEDY SET FORTH IN THE "INFRINGEMENT" SECTION;

      2) FOR THE NON-PERFORMANCE OF PRODUCTS, SOFTWARE, AND SERVICES DURING THE
      WARRANTY PERIOD--THE REMEDY SET FORTH IN THE APPLICABLE "WARRANTY"
      SECTION;

      3) FOR TANGIBLE PROPERTY DAMAGE AND PERSONAL INJURY CAUSED BY SELLER'S
      NEGLIGENCE--THE AMOUNT OF THE PROVEN DIRECT DAMAGES;

      4) FOR EVERYTHING OTHER THAN AS SET FORTH ABOVE--THE AMOUNT OF THE PROVEN
      DIRECT DAMAGES NOT TO EXCEED $100,000 PER OCCURRENCE INCLUDING AWARDED
      COUNSEL FEES AND COSTS.

(b) NOTWITHSTANDING ANY OTHER PROVISION OF THIS AGREEMENT, SELLER, ITS
AFFILIATES AND THEIR EMPLOYEES, AND AGENTS, AND ITS SUPPLIERS SHALL NOT BE
LIABLE FOR ANY INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES OR LOST PROFITS,
REVENUES OR SAVINGS ARISING OUT OF THIS AGREEMENT, OR THE USE OR PERFORMANCE OF
ANY PRODUCT, LICENSED MATERIALS, OR SERVICES, WHETHER IN AN ACTION FOR OR
ARISING OUT OF BREACH OF CONTRACT, TORT, INCLUDING NEGLIGENCE, OR STRICT
LIABILITY. THIS SECTION, 1.16(B), SHALL SURVIVE FAILURE OF AN EXCLUSIVE OR
LIMITED REMEDY.

(c) CUSTOMER SHALL GIVE SELLER PROMPT WRITTEN NOTICE OF ANY CLAIM. ANY ACTION OR
PROCEEDING AGAINST SELLER MUST BE BROUGHT WITHIN TWENTY-FOUR (24) MONTHS AFTER
THE CAUSE OF ACTION ACCRUES.


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1.17 USE OF INFORMATION:

      All technical and business information in whatever form recorded which
bears a legend or notice restricting its use, copying, or dissemination or, if
not in tangible form, is described as being proprietary or confidential at the
time of disclosure and is subsequently summarized in a writing so marked and
delivered to the receiving party within thirty (30) days of disclosure to the
receiving party (all hereinafter designated "Information") shall remain the
property of the furnishing party. The furnishing party grants the receiving
party the right to use such Information only for purposes expressly permitted in
this section. Such Information (1) shall not be reproduced or copied, in whole
or part, except for use as authorized in this Agreement; and (2) shall, together
with any full or partial copies thereof, be returned or destroyed when no longer
needed. Moreover, when Seller is the receiving party, Seller shall use such
Information only for the purpose of performing under this Agreement, and when
Customer is the receiving party, Customer shall use such Information only (1) to
order; (2) to evaluate Seller's Products, Licensed Materials and Services; or
(3) to install, operate and maintain the particular Products and Licensed
Materials for which it was originally furnished. Unless the furnishing party
consents in writing, such Information, except for that part, if any, which is
known to the receiving party free of any confidential obligation, or which
becomes generally known to the public through acts not attributable to the
receiving party, shall be held in confidence by the receiving party. The
receiving party may disclose such Information to other persons, upon the
furnishing party's prior written authorization which authorization shall not be
unreasonably withheld or delayed (but in any event not to exceed ten (10)
business days), but solely to perform acts which this section expressly
authorizes the receiving party to perform itself and further provided such other
person agrees in writing (a copy of which writing will be provided to the
furnishing party at its request) to the same conditions respecting use of
Information contained in this section and to any other reasonable conditions
requested by the furnishing party.

1.18 DOCUMENTATION:

      Seller shall furnish to Customer, at no additional charge, one (1) copy of
the documentation for Products and/or one (1) copy of the Related Documentation
for Software licensed to Customer for each Product or Software purchased by
Customer as well as one (1) duplicate copy for use at Customer's corporate
headquarters. Such documentation shall be that which is customarily provided by
Seller to its Customers at no additional charge. Such documentation shall be
sufficient to enable Customer to operate and maintain such Products and Software
in accordance with Seller's specifications. Such documentation shall be provided
either prior to, included with, or shortly after shipment of Products and/or
Software from Seller to Customer. Additional copies of such documentation are
available at prices set forth in Seller's Customer Price Lists.

1.19 5ESS(R) DOCUMENTATION:

      Seller will provide to Customer at no charge one (1) copy each of the most
recent text and drawing CD-ROM or one (1) login to the 5ESS(R) Switch
Documentation Dial-Up Service for


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<PAGE>   19

each new host/standalone Switch site, as well as one (1) duplicate copy for use
at Customer's corporate headquarters. Such documentation will include, at a
minimum, Seller's document numbers 235-400-112, 235-400-103 (expanded version)
and 254-303-100 (in CD-ROM form when available). No documentation will be
provided to RSMs (Remote Site Module) or ORMs (Optical Remote Module). In
addition, Seller will provide updates at no charge for a period of two (2) years
following Switch turnover. After the initial two (2) year update period,
Customer may purchase an update subscription at the standard subscription rate.

1.20 NOTICES:

(a) Any notice, demand or other communication (other than an order) required, or
which may be given, under this Agreement shall, unless specifically otherwise
provided in this Agreement, be in writing and shall be given or made by
nationally recognized overnight courier service, confirmed facsimile, or
certified mail, return receipt requested and shall be addressed to the
respective parties as follows:

If to Seller

      Lucent Technologies Inc.
      Global Commercial Markets
      5440 Millstream Road, E2N32
      I-85 & Mt. Hope Church Road
      McLeansville, North Carolina 27301
      Attn: Contract Manager

If to Customer:

            1. Vice President, Engineering
               Birch Telecom, Inc.
               1000 Walnut Street
               Suite 1220
               Kansas City, MO 64106

            2. General Counsel
               Birch Telecom, Inc.
               1000 Walnut Street
               Suite 1220
               Kansas City, MO 64106

(b) Any such notice shall be effective upon receipt. Each party may change its
designated representative who is to receive communications and notices and/or
the applicable address for such communications and notices by giving notice
thereof to the other party provided herein.

1.21 FORCE MAJEURE:

      Except for payment obligations, neither party shall be held responsible
for any delay or failure in performance to the extent that such delay or failure
is caused by fires, strikes,


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<PAGE>   20

embargoes, explosions, earthquakes, floods, wars, water, the elements, labor
disputes, government requirements, civil or military authorities, acts of God or
by the public enemy, inability to secure raw materials or transportation
facilities, acts or omissions of carriers or suppliers, or other causes beyond
its control whether or not similar to the foregoing.

1.22 ASSIGNMENT:

      Except as provided in this section, neither party shall assign this
Agreement or any right or interest under this Agreement, nor delegate any Work
or obligation to be performed under this Agreement, (an "assignment") without
the other party's prior written consent. Any attempted assignment in
contravention of this shall be void and ineffective. Nothing shall preclude a
party from employing a subcontractor in carrying out its obligations under this
Agreement. A party's use of such subcontractor shall not release the party from
its obligations under this Agreement. Notwithstanding the foregoing, Seller has
the right to assign this Agreement and to assign its rights and delegate its
duties under this Agreement, in whole or in part, at any time and without
Customer's consent, to any present or future subsidiary or "Affiliate" of Seller
or to any combination of the foregoing. Such assignment or delegation shall
release Seller from any further obligation or liability thereon. Notwithstanding
the foregoing, Customer has the right to assign this Agreement and to assign its
rights and delegate its duties under this Agreement, in whole or in part, at any
time and without Seller's consent, to any present or future subsidiary or
"Affiliate" of Customer (except for direct competitors of the Seller, i.e.,
companies which market network Products and Licensed Materials similar to those
provided by seller under this Agreement.) or to any combination of the
foregoing. Such assignment or delegation shall not release Customer from any
further obligation or liability thereon. Seller shall give Customer prompt
written notice of the assignment. For the purposes of this section, the term
"Agreement" includes this Agreement, any subordinate agreement placed under this
Agreement and any order placed under this Agreement or subordinate agreement.

1.23 TERMINATION OF AGREEMENT FOR BREACH:

      In the event either party is in material breach or default of the terms of
this Agreement and such breach or default continues for a period of ten (10)
days with respect to payment obligations or thirty (30) days with respect to any
other obligations after the receipt of written notice from the other party, then
the party not in breach or default shall have the right to terminate this
Agreement without any charge, obligation or liability except for Products or
Licensed Materials already delivered and Services already performed. The party
not in breach or default shall provide full cooperation to the other party in
every reasonable way to facilitate the remedy of the breach or default hereunder
within the applicable cure period. Notwithstanding the foregoing, if the nature
of the material breach or default is such that it is not a payment obligation
and it is incapable of cure within the foregoing thirty (30) day period, then
the thirty (30) day cure period may be extended for a reasonable period of time
(in no event to exceed an additional thirty (30) days), provided that the party
in breach or default is proceeding diligently and in good faith to effectuate a
cure.


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<PAGE>   21

1.24 ARBITRATION:

      If a dispute arises out of or relates to this Agreement, or its breach,
the parties agree to escalate such dispute to their respective senior executives
for good faith negotiations seeking a mutually agreeable resolution. This demand
for escalation shall be in writing and notice shall be served in accordance with
the notice provision of this Agreement. If the dispute is not resolved through
such escalation within fifteen (15) days after the date of escalation, either
party shall have the right to submit the dispute to a sole mediator selected by
the parties or, at any time at the option of a party, to mediation by the
American Arbitration Association ("AAA"). If not thus resolved, it shall be
referred to a sole arbitrator selected by the parties within thirty (30) days of
the mediation or, in the absence of such selection, to AAA arbitration which
shall be governed by the United States Arbitration Act, and judgment on the
award may be entered in any court having jurisdiction. The arbitrator may
determine issues of arbitrability, but may not award punitive damages or limit,
expand or otherwise modify the terms of this Agreement. The parties, their
representatives, other participants and the mediator and arbitrator shall hold
the existence, content and result of mediation and arbitration in confidence,
except as such disclosure may be necessary for the purpose of recording or
otherwise acting upon the arbitrator's award.

1.25 NON-SOLICITATION:

      During the term of this Agreement and for a period of one (1) year from
the termination of this Agreement or a Statement of Work, the parties agree not
to employ, make an offer of employment to, or enter into a consulting
relationship with any employee of the other party who is directly involved with
the delivery of Services under this Agreement, except upon the prior written
consent of the affected party.

1.26 INDEPENDENT CONTRACTOR:

      All work performed by either party under this Agreement shall be performed
as an independent contractor and not as an agent of the other, and no persons
furnished by the performing party shall be considered the employees or agents of
the other.

1.27 RELEASES VOID:

      Neither party shall require releases or waivers of any personal rights
from representatives or employees of the other in connection with visits to its
premises, nor shall such parties plead such releases or waivers in any action or
proceeding.

1.28 PUBLICITY:

      Neither party shall issue or release for publication any articles,
advertising, or publicity material relating to Products, Licensed Materials, or
Services under this Agreement or mentioning or implying the name, trademarks,
logos, trade name, service mark or other company identification of the other
party or any of its Affiliates or any of its personnel without the prior written
consent of the other party.


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<PAGE>   22

1.29 CONFIDENTIALITY OF AGREEMENT:

      Notwithstanding the obligations contained in Section 1.17 (Use of
Information) of this Agreement the parties shall keep all provisions of this
Agreement and any order submitted hereunder (including, without limitation,
prices and pricing related information) confidential except: (i) as reasonably
necessary for performance by the parties hereunder, (ii) as authorized by Seller
as provided in this Article 1.29, or (iii) to the extent disclosure may be
required by applicable laws or regulations, in which latter case, the party
required to make such disclosure shall promptly inform the other prior to such
disclosure in sufficient time to enable such other party to make known any
objections it may have to such disclosure. The Customer may disclose such
information to (a) consultants or advisors previously authorized by the Seller,
solely for the purpose of providing consulting services or advice with respect
to Customer's network and operations, or (b) potential investors or lenders
previously authorized by the Seller, solely for the purpose of evaluating
possible financial transactions with the Customer, but in each event only after
each of those persons or entities shall have agreed to maintain the information
in confidence in accordance with the terms of this Article. The Seller's
authorization shall not be unreasonably withheld or delayed (but in any event
not to exceed ten (10) business days). The disclosing party shall take all
reasonable steps and exercise all reasonable efforts directed by Seller to
secure a protective order, seek confidential treatment, or otherwise assure that
this Agreement and/or any order will be withheld from the public record.

1.30 AMENDMENTS:

      Any supplement, modification or waiver of any provision of this Agreement
must be in writing and signed by authorized representatives of both parties.

1.31 SEVERABILITY:

      If any portion of this Agreement is found to be invalid or unenforceable,
the parties agree that the remaining portions shall remain in effect. The
parties further agree that in the event such invalid or unenforceable portion is
an essential part of this Agreement, they will immediately begin negotiations
for a replacement.

1.32 WAIVER:

      If either party fails to enforce any right or remedy available under this
Agreement, that failure shall not be construed as a waiver of any right or
remedy with respect to any other breach or failure by the other party.

1.33 SURVIVAL:

      The rights and obligations of the parties which by their nature would
continue beyond the termination cancellation, or expiration of this Agreement,
shall survive such termination, cancellation or expiration.


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<PAGE>   23

1.34 SECTION HEADINGS:

      The section headings in this Agreement are inserted for convenience only
and are not intended to affect the meaning or interpretation of this Agreement.

1.35 CHOICE OF LAW:

      The construction and interpretation of, and the rights and obligations of
the parties pursuant to this Agreement, shall be governed by the laws of the
State of New York without regard to its conflict of laws provision.

1.36 AMBIGUITIES:

      The parties represent that they are sophisticated businesses with access
to their own legal, financial and business advisors and that each party has had
the opportunity to consult with advisors and that each party has had the
opportunity to consult with advisors of their own choosing before entering into
this Agreement. The parties therefore acknowledge and agree that the rule of law
that ambiguities are construed against the drafter shall not apply to the
interpretation of this Agreement.


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<PAGE>   24

                                  2. ARTICLE II

                  PROVISIONS APPLICABLE TO LICENSED MATERIALS

2.1 LICENSE FOR LICENSED MATERIALS:

(a) Upon delivery of Licensed Materials pursuant to this Agreement, Seller
grants to Customer a personal, nontransferable, and nonexclusive license to Use
Licensed Materials on a Designated Processor in the United States for its own
business operations. No license is granted to Customer to Use the Licensed
Materials outside the United States or to sublicense such Licensed Materials
furnished by Seller. Customer shall not reverse engineer, decompile or
disassemble Software furnished as object code to generate corresponding Source
Code. Unless otherwise agreed in writing by Seller, Customer shall not modify
Software furnished by Seller under this Agreement. If the Designated Processor
becomes temporarily inoperative, Customer shall have the right to Use the
Licensed Materials temporarily on a backup processor until operable status is
restored and processing on the backup processor is completed.

(b) Customer shall not copy Software embodied in Firmware. Customer shall not
make any copies of any other Licensed Materials except as necessary in
connection with the rights granted hereunder. Customer shall reproduce and
include any Seller copyright and proprietary notice on all such necessary copies
of the Licensed Materials. Customer shall also mark all media containing such
copies with a warning that the Licensed Materials are subject to restrictions
contained in an agreement between Seller and Customer and that such Licensed
Materials are the property of Seller. Customer shall maintain records of the
number and location of all copies of the Licensed Materials. Customer shall take
appropriate action, by instruction, agreement, or otherwise, with the persons
permitted access to the Licensed Materials so as to enable Customer to satisfy
its obligations under this Agreement. If Customer's license is canceled or
terminated, or when the Licensed Materials are no longer needed by Customer,
Customer shall return all copies of such Licensed Materials to Seller or follow
written disposition instructions provided by Seller.

2.2 CHANGES IN LICENSED MATERIALS:

      Prior to shipment, Seller at its option may at any time modify the
Specifications relating to its Licensed Materials, provided the modifications,
under normal and proper Use, do not materially adversely affect the Use,
function, or performance of the ordered Licensed Materials. Unless otherwise
agreed in writing, such substitution shall not result in any additional charges
to Customer with respect to licenses for which Seller has quoted fees to
Customer.

2.3 CANCELLATION OF LICENSE:

      Notwithstanding any other section in this Agreement to the contrary, if
Customer fails to comply with any of the material terms and conditions of this
Agreement with respect to the Use of Licensed Materials, and such failure is not
corrected within thirty (30) days of receipt of written


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<PAGE>   25

notice thereof by Customer, Seller, upon written notice to Customer, may cancel
any affected license for Licensed Materials without further notification.

2.4 OPTIONAL SOFTWARE FEATURES:

      Software provided to Customer under this Agreement may contain optional
features which are separately licensed and priced. Customer understands and
agrees that such optional features will not be activated without written
authorization from Seller and Customer's payment of the appropriate license
fees. If, in spite of Customer's best efforts to comply with this restriction,
such features are intentionally activated by Customer, Customer agrees to so
notify Seller within five (5) business days from the date of Customer's
knowledge that such features were activated and to pay Seller the current
license fees charged by Seller for the activated features, as well as the
reasonable cost of money for the period in which such features were activated.

2.5 ADDITIONAL RIGHTS IN LICENSED MATERIALS:

(a) Upon thirty (30) days advance written notice, Customer may relocate the
Software permanently to a new processor of Customer. This new processor shall
then become the Designated Processor in lieu of the former Designated Processor.

(b) Customer may retain an archival copy of the Software for as long as such
Software is relevant to Customer's operations.

2.6 INSTALLATION OF SOFTWARE:

(a) Where Customer is responsible for Software installation, Seller's sole
responsibility is to deliver the Software to Customer on or before the scheduled
Delivery Date agreed to by Seller. However, if the order specifies that Seller
is responsible for such installation, Seller shall deliver the Software to
Customer in sufficient time for it to be installed on or before the scheduled
Installation Complete Date agreed to by Seller, and Seller shall complete its
installation and associated testing on or before such date.

(b) Where Customer has assumed responsibility for the installation of newly
licensed Software and in the event that Customer encounters installation
difficulties, at Customer's request, Seller will, at the standard rate in effect
at the time of the request, provide technical assistance.

2.7 SOFTWARE ACCEPTANCE:

(a) Prior to Software acceptance by Customer, Customer has the right to operate
the Software furnished by Seller on the Designated Processor solely for the
purpose of conducting an Acceptance Test (means the test which may be performed
by Customer during the Acceptance Test Period to determine whether Software will
be free from defects which materially affect performance in accordance with the
Seller's Specifications). Unless otherwise agreed by the parties, the Acceptance
Test Period (means the period of time in days agreed to by the


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<PAGE>   26

parties and specified in this section) for Software shall be thirty-five (35)
consecutive calendar days from the delivery date if Customer performs
installation or from the Installation Complete Date if Seller performs
installation. The Software shall be deemed accepted by Customer unless Customer
notifies Seller in writing to the contrary within the applicable Acceptance Test
Period described above. If Seller receives written notice from Customer during
the Acceptance Test Period that the Software failed the Acceptance Test, the
Acceptance Date (the date on which the Software successfully completes the
Acceptance Test) shall be extended on a day-to-day basis until such time as the
Software passes the Acceptance Test.

(b) If Customer elects in the order not to perform Acceptance Tests for any
Software, the Acceptance Date for such Software shall be the Delivery Date if
not installed by Seller or the Installation Complete Date if installed by
Seller, as applicable.

(c) For any Acceptance Test conducted by Customer on newly licensed Software,
and in the event that Customer encounters difficulties, Seller will, at
Customer's request and for the standard rate in effect at the time of the
request, provide technical assistance to Customer.

(d) If Customer performs installation and elects to perform applicable tests for
any Software, the warranty for such Software shall commence on the Delivery
Date.

2.8 MODIFICATIONS BY CUSTOMER TO USER CONTROLLED MODULES:

      Customer may add to, delete from, or modify user controlled Software
modules or menus as contemplated in the Seller's Related Documentation. Such
changes or modifications, however extensive, shall not affect Seller's title to
the licensed Software. Seller shall have no liability for Customer's errors in
making such changes or modifications.

2.9 ADDITIONAL SOFTWARE RIGHTS FOR 5ESS(R) SWITCH LICENSED MATERIALS

      The following provisions also apply to the granting of licenses by Seller
to Customer for 5ESS(R) Switch Licensed Materials.

(a) Customer may transfer its right-to-use 5ESS(R) Switch Software furnished
under this Agreement without the payment of an additional right-to-use fee by
transferee, except where size sensitive units are a factor. Such transfer can be
made to an end user for their own internal use and only under the following
conditions:

      (i)   Such software shall be used only within the United States; however,
            Seller will not unreasonably withhold its consent to Use outside the
            United States provided that, in the sole opinion of the Seller, the
            proprietary information associated with the Use can be adequately
            protected and any other reasonable concerns of Seller are adequately
            addressed;


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<PAGE>   27

      (ii)  Except as otherwise provided in the agreement, the right to use such
            Software may be transferred only together with the 5ESS(R) Switch
            Product with which customer has a right to use such Software, and
            such right to use the Software shall continue to be limited to Use
            with such Product;

      (iii) Before any such Software shall be transferred, Customer shall notify
            Seller of such transfer and the transferee shall have agreed in
            writing (a copy of which will be provided to Seller at its request)
            to keep such Software in confidence and to comply with corresponding
            conditions respecting Use of Licensed Materials as those imposed on
            customer; and

      (iv)  Within the United States, the transferee shall have the same right
            to Software warranty or Software maintenance for such Software as
            the transferor, provided the transferee continues to pay the fees,
            if any, associated with such Software or Software maintenance.

      (v)   In no event shall such transfer be made to any competitor of Seller
            who is in the business of manufacturing comparable systems or to any
            other party who presents a competitive or strategic conflict to
            Seller.

(b) Upon advance written notice to Seller, Customer may remove 5ESS(R) Switch
Software or optional feature packages, which Customer has the right to Use under
this Agreement from one Customer-owned 5ESS(R) Switch Product and relocate them
to another Customer-owned 5ESS(R) Switch Product within the same company as
Customer. Customer shall not be required to pay additional right-to-use fees as
a result of such relocation, except where size sensitive units are a factor.
Seller may charge customer for services requested by customer in support of such
relocation. Such Software shall not be used or transferred to Customer's
affiliate that is a manufacturer of telecommunication products in direct
competition with Seller.

(c) If Seller ceases to maintain a standard, supported version of Software for
the 5ESS(R) Switch Product furnished pursuant to this Agreement, and these
support services are not available from another entity (either working with or
independently from Seller), then Seller shall furnish Customer, under a
confidentiality agreement acceptable to Seller, Seller's then existing Software
Source Code, Software development programs, and associated documentation for
such standard version to the extent necessary for Customer to maintain and
enhance for its own use the standard version of that Software which it has the
right to use under this Agreement.


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<PAGE>   28

                                 3. ARTICLE III

          PROVISIONS APPLICABLE TO ENGINEERING, INSTALLATION AND OTHER
                                    SERVICES

      GENERAL: The provisions of this Article III shall apply to the Services
ordered by Customer and furnished by Seller under this Agreement.

3.1 SITE REQUIREMENTS:

(a) Customer is solely responsible for ensuring that the installation site is
compliant with any site requirements identified by Seller for the installation
and/or operation of any Products, Licensed Materials, or Services furnished by
Seller under this Agreement. Such site requirements shall include, without
limitation, those site requirements set forth in this Section 3.1 below. Seller
agrees to cooperate with Customer to ensure compliance with all site
requirements, provided that such cooperation shall not require Seller to incur
any out-of-pocket costs unless the parties expressly agree otherwise in writing.

(b) Customer shall be solely responsible for ensuring that the installation site
complies with all applicable laws, orders, and regulations of federal, state and
local governmental entities including, without limitation, those relating to
environmental conditions.

(c) Notwithstanding anything contained in this Agreement to the contrary, Seller
shall have no liability to Customer, its employees, agents, and customers for
any delay by Seller in completion of any installation or other Service to be
provided by Seller under this Agreement if such delay is attributable to the
failure by Customer to comply with any site requirements or to provide any other
items which are the responsibility of Customer under this Article II.

(d) The site requirements which are solely the Customer's responsibility shall
include but are not limited to the following:

      (i)   Participate in a joint site survey with Seller
      (ii)  Interior Space -Clears ten feet (10') from floor to bottom of lowest
            obstruction
      (iii) Floor Loading(minimum requirements) Structural Analysis always
            required
      (iv)  Power Room 150 lb. per sq. ft
      (v)   Switch Room 100 lb. per sq. ft.
      (vi)  Floor Thickness: In accordance with local seismic requirements for
            the equipment
      (vii) Conduit access to all floors in building
     (viii) Local exchange carrier cable available
      (ix)  Commercial electrical current
      (x)   Existing building grounding is 5 ohm or less metered
      (xi)  Battery room ventilation in accordance with local requirements
      (xii) Fire suppression system
     (xiii) Freight access for a 48' trailer off loading equipment.


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<PAGE>   29

3.2 ADDITIONAL ITEMS TO BE PROVIDED BY CUSTOMER:

(a) Customer will also be responsible for furnishing the items described in this
Section 3.2 as required by the conditions of the particular installation or
other on-site Service at no cost to Seller and such items are not included in
Seller's price for the Services. Seller shall have the right to invoice Customer
for any costs or expenses incurred by Seller as a result of Customer's failure
to provide any of these items described in this Section 3.2 and all such
invoices shall be paid by Customer in accordance with this Agreement.

      (i)   Access to Building and Work Site Customer shall provide employees of
            Seller and its subcontractors free access to premises and facilities
            at all hours during the scheduled Service or at such other times as
            are requested by Seller. Customer shall obtain for Seller's
            employees and its subcontractors' employees any identification and
            clearance credentials which are necessary to enable Seller and its
            subcontractors to have access to the work site.

      (ii)  Site Coordination At Seller's request Customer shall coordinate with
            Customer's subcontractors, property managers, Regional Bell
            Operating Company, Local Exchange Carrier and any other parties and
            tenants having rights to the work site or whose participation is
            necessary in order for Seller to perform the applicable Services.

      (iii) Environmental Conditions Prior to the Services start date, Customer
            shall insure that the premises will be dry and free from dust and
            Hazardous Materials, including but not limited to asbestos, and that
            the premises are in such condition as not to be injurious to
            Seller's or its subcontractors' employees or to the Products and
            Licensed Materials to be installed. Prior to Services start date and
            during the performance of the Services, Customer shall, if requested
            by Seller, provide Seller with sufficient data to assist Seller and
            its subcontractors in evaluating the environmental conditions at the
            work site (including without limitation, the presence of Hazardous
            Materials). The price quoted by Seller for Services does not include
            the cost of removal or disposal of the Hazardous Materials from the
            work site. Customer is responsible for the removal and disposal in
            accordance with applicable laws, rules and regulation of the
            Hazardous Materials, including but not limited to asbestos, prior to
            commencement of Services.

      (iv)  Sensitive Equipment Prior to the Services start date, Customer shall
            inform Seller of the presence of any sensitive equipment at the work
            site (e.g., equipment sensitive to static electricity or light).

      (v)   Repairs to Buildings Prior to the Services start date, Customer
            shall make such alterations and repairs to the work site as are
            necessary for proper installation of Products and Licensed
            Materials.

      (vi)  Building Readiness Prior to the Services start date, Customer shall
            provide extraordinary hauling and hoisting services such as, rigging
            or crane services, if


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<PAGE>   30

            applicable, and shall arrange for traffic control, if necessary for
            the delivery of Products.

      (vii) Openings in Buildings - Customer shall furnish suitable openings in
            buildings, including, without limitation, elevators and windows as
            needed to allow Products to be placed in position, and shall provide
            necessary openings and ducts for cable and conductors in floors and
            walls as designated on engineering drawings furnished by Seller.
            Customer shall fireproof (with steel covers and as otherwise
            required by applicable laws, rules, regulations, and codes) all
            unopened paths throughout such buildings.

     (viii) Surveys Prior to the Services start date, Customer shall provide to
            Seller (and, if requested by Seller, to Seller's subcontractors)
            surveys (describing the physical characteristics, legal limitations,
            and utility locations for the work site) and a legal description of
            the site.

      (ix)  Electrical Current, Heat, Light, and Water Customer shall, in
            amounts no less than that ordinarily furnished for similar purposes
            in a working office, provide electric power, run all leads to
            Seller's power board; provide temperature control and general
            illumination (regular and emergency) in rooms in which services are
            to be performed or Products stored, provide exit lights; and provide
            water and other necessary utilities for the proper execution of
            Services.

      (x)   Building Evacuation Prior to the Services start date, Customer shall
            provide building evacuation plans in case of a fire or other
            emergency.

      (xi)  Material Furnished by Customer Unless expressly stated to the
            contrary, Seller's prices do not include costs for any Customer
            furnished material nor do they include any Seller charges for
            engineering, installation, modification, or repair Services to
            Customer furnished material. New or used material furnished by
            Customer shall be in such condition that it requires no repair and
            no adjustment or test effort in excess of that normal for new
            equipment. Customer assumes all responsibility for the proper
            functioning of such material. Customer shall also provide the
            necessary technical assistance and information for Seller to
            properly install such material.

      (xii) Floor Space and Storage Facilities Customer shall provide, for the
            duration of Services, suitable and easily accessible floor space and
            storage facilities to permit storing of Products and other material,
            tools and other property of Seller and its subcontractors in close
            proximity to where they will be used. Where the Services are to be
            performed outside of a building or in a building under construction,
            Customer shall, in addition to the above requirements, permit or
            secure any necessary permission for Seller and its subcontractors to
            maintain at the work site, storage facilities for Products,
            material, tools, and equipment needed to complete the Services. As
            appropriate Customer shall provide Seller's and its subcontractors'
            personnel access to toilet facilities.


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<PAGE>   31

     (xiii) Easements, Permits, and Rights of Way Customer shall secure prior
            to the Services start date and shall maintain for the duration of
            the Services all rights-of-way, easements, licenses, and permits and
            such other rights and approvals as are necessary to enable Seller to
            perform the Services including, without limitation, all construction
            and building permits for work to be performed at the work site and
            other areas ancillary to the work site such as sidewalks, streets,
            alleys, and highways.

      (xiv) Security Service Customer shall provide such levels of security as
            are necessary to prevent admission of unauthorized persons to
            building and other areas where installation Services are performed
            and to prevent unauthorized removal of the Products and other
            materials. Seller will inform Customer as to which storage
            facilities at the work site Seller will keep locked. Such storage
            facilities will remain closed to Customer's building surveillance.

      (xv)  Access to Existing Equipment Customer shall permit Seller reasonable
            use of such portions of the existing equipment as are necessary for
            the proper completion of such tests as require coordination with
            existing equipment. Such use shall not interfere with the Customer's
            normal maintenance of equipment.

      (xvi) Grounds Customer shall provide access to suitable and isolated
            building ground as required for Seller's standard grounding of
            equipment. Where installation is performed outside or in a building
            under construction, Customer shall also furnish lightning protection
            ground.

     (xvii) Requirements for Customer Designed Circuits Customer shall furnish
            information covering the proper test and readjust requirements for
            apparatus and shall furnish requirements for circuit performance
            associated with circuits designed by Customer or standard circuits
            modified by Customer's drawings such as alarm and environmental
            circuits.

    (xviii) Cross-Connecting Main Distributing Frames and Installing Heat
            Coils Customer shall install such cross-connections and heat coils
            as are necessary in connection with the Services.

      (xix) Clearing Equipment for Modifications Customer shall remove
            cross-connections, transfer service on trunks and sundry working
            equipment, and make other arrangements required to permit Seller to
            modify existing equipment.

(b) In the event the joint site survey conducted by the parties pursuant to
Section 3.3.2(a) determines that the necessary requirements are not met at the
commencement of the installation of the Products and the Customer needs to
arrange for alterations and/or repairs, the order will be placed on hold until
such time as requirements are met. During such interval, Seller reserves the
right to determine any schedule and price impacts, to treat such product as Bill
and

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<PAGE>   32

Hold, or, with the consent of the Customer, to cancel such order. Customer shall
be responsible for and agrees to pay the applicable cancellation fee if such
order is canceled by Seller.

3.3 ITEMS TO BE FURNISHED BY SELLER

3.3.1 ENGINEERING:

(a) General Review Seller will review the following items as Seller deems
appropriate; switching Products (Products and Software); transmission Products
(Products and Software); power/energy equipment hardware; engineering drawings;
site survey; grounding of the switch; appliance outlets; front and rear aisle
lighting as required; timing cables; distributing frame engineering and
equipment; cable rack and hardware; stanchions; end guards auxiliary framing;
existing cable holes; fiber cable protection systems.

(b) Needs Analysis Seller will perform a needs analysis of the Telephone
Equipment Order (TEO) and the Customer's specified requirements to determine the
equipment solution that meets those requirements.

(c) Records Upon Installation Complete, Seller will turn over to Customer a
complete set of records. Such records include but are not limited to wiring
lists, front equipment drawings, assignment drawings, and interface schematics.

3.3.2 INSTALLATION:

(a) Site Survey Prior to the commencement of installation Services, Seller and
Customer will perform a joint site survey to determine whether the installation
site meets the site requirements referenced in Section 3.1 and whether Customer
has provided the items in Section 3.2. Should Seller determine that the site
does not comply with such site requirements or that Customer has not provided
any item required under Section 3.2, Seller shall specify such deficiencies to
Customer in writing. Seller and Customer shall jointly agree on a course of
action to correct such deficiencies prior to the start of installation Services.
During the joint site survey, Seller and Customer shall also jointly agree upon
the layouts and arrangements for the Products and Licensed Materials to be
installed. Upon the start of installation all changes shall be subject to
additional charges.

(b) Method of Procedure Seller shall prepare a detailed Method of Procedure
("MOP") and review with Customer before starting work. Customer shall review the
MOP prepared by Seller and shall give Seller written acceptance of the MOP by
signing a copy thereof prior to the Services start date. Any changes to the MOP
requested by Customer shall be agreed upon subject to the Change Order process.


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<PAGE>   33

The MOP shall contain the following details:

      (i)   A concise statement that covers the installation Services to be
            performed including the equipment that will be affected and the
            hours that such Services are to be performed;
      (ii)  Specific responsibilities of Seller and Customer;
      (iii) Service protection procedures that include, general service
            protection rules and special service precautions for the specific
            project;
      (iv)  A time and release schedule of the work operations involving working
            equipment and/or circuits in service and;
      (v)   A method of identifying equipment and cabling to ensure that the
            circuits are "cleared" before start of work
      (vi)  A detailed account of the work operations that the installer will
            follow
      (vii) The methodology to be used to halt installation Services if trouble
            occurs and a general procedure to correct/resume work operations;
     (viii) Provide environmental safety concerns, if applicable;
      (ix)  Obtain Customer signature.

(c) Warehousing, Delivery, Receipt & On-site Storage of Equipment, and General
Cleaning Seller will stage the delivery of Products. Seller's personnel will be
on-site at the time the Products are delivered. Such personnel will accept the
Products, unpack for inventory purposes and inspect such Products for damage.
Seller will resolve all shipping errors inventory discrepancies and damage
issues. This function shall be performed in an area previously designated for
the storage and unpacking of equipment and Product(s). Such area will be
selected based on a location that minimizes movement of material and personnel
through the work site. In the event storage is limited or inadequate, as
determined by Seller, temporary storage facilities such as trailers or
containers may be required. Any fees associated with the procurement of
temporary storage facilities are not included in Seller's quoted prices and
shall be solely the responsibility of the Customer. Materials such as plywood or
masonite will be utilized as necessary, to prevent cable reels, iron work and
other heavy objects from damaging floors, walls and doors. Seller shall perform
general cleaning of the equipment and storage areas (e.g. clearing floors of
debris, packing material, etc.) on a regular basis throughout the installation
period. Rubbish shall be disposed of at Seller's expense and in compliance with
local requirements.

(d) Hardware Assembly Hardware assemblies and overhead cable rack, iron work and
conduit (collectively "Components") will be delivered for specific bays and
cabinets as identified in the firm price quote provided or in the Statement of
Work, attached hereto. Unless included in the SOW, additions of these components
to provide access to other locations (i.e. power rooms, computer rooms,
distributing frames not located with Products, or Products located on separate
floors) will be specifically excluded from the installation Services. Such
additions will only be included in the installation Services for an additional
charge. Seller will place and secure all


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<PAGE>   34

ordered Products in the location specified in the engineering specifications.
Such activity includes but is not limited to:

      (i)   Mark and drill floors
      (ii)  Assemble and place floor mounted Products
      (iii) Assemble distribution frames
      (iv)  Erect frames
      (v)   Align and junction frames
      (vi)  Install end guards and covers
      (vii) Assemble and install fiber protection ductwork
     (viii) Mount units and apparatus
      (ix)  Place batteries

      Seller will also erect supporting hardware compatible with purchased
Products. Such activity includes but is not limited to:

      (i)   Fabricate and install cable racks, bars, rod or stations as
            identified in Statement of Work attached hereto
      (ii)  Erect ladder rack and ladders
      (iii) Open and close existing cable holes and slots. Any new cable to
            facilitate Products designs the responsibility of the Customer
      (iv)  Fabricate and install framing aisle lighting conduit and fittings

      In addition, Seller will place and designate connecting appliances (MDF
terminal blocks, DSX panels, etc.) provided with order. Such as but not limited
to:

      (i)   Stamp and/or affix aisle, shelf and unit designations
      (ii)  Mount and stencil terminal strips

      Seller will also extend lighting, A/C circuits and grounding to include
added Products if Products is ordered in job specification. Such activities
include but are not limited to:

      (i)   Assemble and install lighting fixtures
      (ii)  Install switches and receptacles

(e) Cable and Wire For cable and wire to be installed by Seller, Seller will
run, tag, and secure metallic and fiber optic cables in an unobstructed
environment a maximum of one hundred (100) feet and power cables a maximum of
fifty (50) feet for the Products and apparatus (this specifically excludes
primary power cables, except on power equipment orders) identified in the
Product order or Statement of Work attached hereto. Seller will wire, attach,
terminate and affix (lock stitched) all cable and wire including fiber optic
cables supplied with purchased Products. This may include but is not limited to
mechanical wire wrapping, soldering, crimping, plugging in of pre-terminated
cables or polishing of fiber optics for purchased Product. Seller will run alarm
cabling, terminate and test for the identified equipment including Customer
provided


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<PAGE>   35

environmental scan points of fire detection and door entry which are less than
fifty (50) feet away and pre-terminated. Seller will verify all copper wiring
placed by the Seller for continuity to detect and analyze opens, shorts,
reversals, and incorrect wiring. Where pairs, quads or groupings are indicated,
the grouping will be verified. Seller will ensure the functionality and
integrity of all fiber directly associated with the installed Products and the
fiber optic cables installed by Seller within the building structure. Seller
will "Dress" all cabling and wiring and provide physical protection. Seller will
properly protect cables at all "break-off" locations, such as the vertical turns
from the overhead cable rack to bay frame work.

(f) Testing Specific test procedures are dependent upon the type of Product
installed and are identified in the installation guide for the particular
product. To ensure that technical design and performance criteria are being met,
testing shall be performed by Seller to obtain an evaluation of the functional,
operational, electrical and mechanical integrity of all Products installed by
Seller. In general the following tests are required for all Product types
furnished and installed by Seller: Seller's activities associated with testing
will include, but not be limited to the following:

      (i)   Turn on and verify power to installed Products
      (ii)  Load product software and default parameters required to conduct
            local unit loop-back testing to demarcation points.
      (iii) Run and connect test specific cross-connects. Remove upon completion
            of test(s).
      (iv)  Perform all unit and system-level tests to ensure Products pass
            system and technician evoked diagnostics
      (v)   Test functionality of circuit packs required by job, at time of
            original installation, within the installed unit. Testing of spares
            is specifically excluded and will be included only for an additional
            charge.
      (vi)  Test functionality and integrity of Seller installed local alarms.
      (vii) Resolve troubles encountered with Products purchased on order. Refer
            to Customer any trouble found in Customer provided equipment.
     (viii) Maintain test logs and trouble reports and turn over to Customer.

(g) Seller will perform the following Turnover procedures for all installation
Services provided by Seller

      (i)   Inform Customer of completion of installation cycle
      (ii)  Provide Customer with all drawings, invoices, logs and test results
            per the contract.
      (iii) Remove from Customer premises tools and scrap generated from
            installation effort.
      (iv)  Issue job completion notice to Customer.

3.4 ACCEPTANCE


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<PAGE>   36

(a) All installation Services shall be considered complete and ready for
acceptance by Customer on Turnover. Upon completion of the installation, Seller
will submit to Customer a notice of completion or, if Customer has elected
advance-turnover of subsystems, a notice of completion of advance-turnover.

(b) Customer shall promptly make its final inspection of substantial conformance
with the Specifications and do everything necessary to expedite acceptance of
the job. Seller will promptly correct any defects for which it is responsible.
All work will be considered as fully accepted unless Seller receives
notification to the contrary within thirty (30) days after submitting its notice
of completion. Notwithstanding the foregoing, Customer shall be deemed to have
accepted any Products and Licensed Materials upon the placement of the same into
service.

3.5  WORK OR SERVICES PERFORMED BY OTHERS:

      Work or services performed at the site by Customer or its other vendors or
contractors shall not interfere with Seller's performance of Services. Seller
shall have no responsibility or liability with respect to such work or Services
performed by others. If Customer or its other vendors or contractors fail to
timely complete the site readiness or if Customer's or its other vendors' or
contractors' work interferes with Seller's performance, the scheduled completion
date of Seller's Services under this Agreement shall be extended as necessary to
compensate for such delay or interference.


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<PAGE>   37

                                 4. ARTICLE IV

                               ENTIRE AGREEMENT:

4.1 ENTIRE AGREEMENT

      The terms and conditions contained in this General Agreement supersede all
prior oral or written understandings between the parties with respect to the
subject matter hereof and constitute the entire agreement between the parties
with respect to such subject matter. The preprinted terms and conditions on
Customer's purchase orders or Seller's sales forms are deleted. The typed or
handwritten provisions of an order which are consistent with the terms of this
General Agreement along with the terms of this General Agreement shall
constitute the entire Agreement between the parties relating to said order.

IN WITNESS WHEREOF, the parties have caused this Agreement to be executed by
their duly authorized representatives on the date(s) indicated.

Lucent Technologies, Inc.                 Birch Telecom, Inc.


By: /s/ Bill Plunkett                     By: /s/ David E. Scott
   -----------------------------             --------------------------

Name: Bill Plunkett                       Name: David E. Scott
     
Title: VP Sales -- CLEC                   Title: President

Date: 2/17/98                             Date: 2/16/98


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<PAGE>   38

The mailing, delivery or negotiation of this Agreement by Seller or its agent or
attorney shall not be deemed an offer by Seller to enter into any transaction or
to enter into any other relationship, whether on the terms contained herein or
on any other terms. This Agreement shall not be binding upon Seller, nor shall
Seller have any obligations or liabilities or Customer any rights with respect
thereto, or with respect to the transactions contemplated by the Agreement,
unless and until the Agreement has been approved by the executive officers
and/or Board of Directors of Seller and Seller has executed and delivered this
Agreement. Until such execution and delivery of this Agreement, Seller may
terminate all negotiation and discussion of the subject matter hereof, without
cause and for any reason, without recourse or liability.

                         PRODUCT PURCHASE ADDENDUM ONE

                                     TO THE

                               GENERAL AGREEMENT

                                    BETWEEN

                              BIRCH TELECOM, INC.

                                      AND

                            LUCENT TECHNOLOGIES INC.

This Addendum One (Contract Number LNMO92697DASBTI (hereafter "Addendum") is
made this ___________ day of, __________ 1998, ("Effective Date") by and between
Birch Telecom, Inc. a corporation, with offices located at 1000 Walnut Street,
Suite 1220, Kansas City, MO 64106 (hereafter "Customer"), and Lucent
Technologies Inc., a Delaware corporation, acting through it's Network Systems
group, with offices located at 600 Mountain Avenue, Murray Hill, NJ 07974
(hereafter "Seller").

WHEREAS, Customer and Seller have entered into a General Agreement (Contract
Number LNM092697DASBTI (hereafter "General Agreement") setting forth the terms
and conditions pursuant to which Seller agrees to sell and Customer agrees to
buy Seller's products, licensed materials and services; and

WHEREAS, Customer and Seller desire to simultaneously enter into an addendum to
the General Agreement to govern certain conditions relating to the purchase or
license for use by Customer of Seller's 5ESS(R)-2000 Switching Systems,
Transmission Systems, and related Licensed Materials.


                         LUCENT TECHNOLOGIES PROPRIETARY                      1
<PAGE>   39

NOW THEREFORE, in consideration of the mutual promises hereinafter set forth and
other good and valuable consideration, the receipt and sufficiency of which is
hereby acknowledged, the parties agree as follows:

A-1.1 SCOPE OF ADDENDUM ONE

This Addendum One (hereinafter "Addendum") shall govern any purchase order
placed by Customer during the Term for Seller's switching and transmission
products and related Licensed Materials. This Addendum is issued pursuant to and
incorporates the non-conflicting terms and conditions of the General Agreement.
In the event of any conflict or inconsistency between the terms of this Addendum
and the terms of the General Agreement, the terms of this Addendum shall
prevail.

A-1.2 DEFINITIONS

For the purpose of this Addendum, the following definitions will apply:

a)    "5ESS(R)-2000 Products" means the 5ESS(R)-2000 Switch, Growth and related
      Licensed Materials including, without limitation, Base Software.

b)    "5ESS(R)-2000 Switch" means any 5ESS(R)-2000 system containing, at a
      minimum, an Administrative Module (AM), Communications Module (CM), at
      least one (1) switch module, and Base Software. Any such Switch can act as
      a host for Optically Remote Modules ("ORMs"), Remote Switch Modules
      ("RSMs") and/or Extended Switch Modules ("EXMs").

c)    "Base Software" means the operating system and related Software, and
      operations, administration and maintenance features and functions, for all
      Seller's switch-based platforms.

d)    "E-AIU Products" means any of the products described on Attachment A to
      this Addendum and related Software.

e)    "Growth" means any 5ESS(R)-2000 hardware or software not purchased with
      the associated initial 5ESS(R)-2000 Switch and required to support the
      expansion of such 5ESS(R)-2000 Switch, and any ORM, RSM, or EXM hardware
      or software not purchased with the associated initial ORM, RSM, or EXM and
      required to support the expansion of such ORM, RSM, or EXM.

f)    "List Price" means the price set forth on the Customer Price List.

g)    "SLC-2000 Products" means any of Seller's SLC-2000 family of transmission
      products, including, but not limited to, the products described on
      Attachment B to this Addendum and related Software.


                         LUCENT TECHNOLOGIES PROPRIETARY                      2
<PAGE>   40

h)    "Switch Module" means a Module Control/Time Slot Interchange Unit and its
      associated Peripheral units working with the embedded 5ESS(R)-2000 Switch
      or with an existing Remote Switch Module site and related Software.

i)    "Total Paid Direct Purchases" means all Customer purchases ordered under
      this Addendum for which Seller has received payment, including hardware,
      Software, engineering, installation, training and documentation which have
      been purchased from Seller without the intervention of any third party,
      including but not limited to distributors or resellers.

Any capitalized terms used but not separately defined in this Addendum shall
have the meanings set forth in the Agreement.

A-1.3 PRICING PLAN FOR 5ESS(R)-2000 SWITCHES, E-AIU PRODUCTS AND SLC-2000
PRODUCTS

Seller will provide the following discounts off the List Price for all purchases
by Customer directly from Seller of the following 5ESS(R)-2000 Products:

5ESS(R)-2000 DISCOUNT TABLE

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
    SWITCH TYPE              INITIAL SWITCH      GROWTH AND ADDITIONS
                             DISCOUNT PERIOD       SWITCH DISCOUNTS
- --------------------------------------------------------------------------------
<S>                          <C>                 <C>
5ESS(R)-2000 Switch               ****                   ****
- --------------------------------------------------------------------------------
RSM/ORM/EXM                       ****                   ****
- --------------------------------------------------------------------------------
Switch Module for                 ****                   ****
5ESS(R)-2000 Switch
- --------------------------------------------------------------------------------
Switch Module for                 ****                   ****
RSM/ORM/EXM
- --------------------------------------------------------------------------------
</TABLE>

The Customer may elect to purchase one or more 5ESS(R)-2000 Switches, one or
more Switch Module(s)-2000, or one or more initial RSMs, ORMs, or EXMs at any
one given location, at the discount off List Prices set forth for the Initial
Switch Discount Period in the table above, at any time during the period of five
years following the Effective Date. The Customer may elect to purchase any
Growth items at the discount off List Prices set forth for the Growth and
Additions Switch Discount in the table above, at any time during the Term of
this Agreement.

During the period of five years following the Turnover of any 5ESS(R)-2000
Switch or following Turnover of any RSM, ORM, or EXM, Customer may elect to
purchase Growth and related Licensed Materials with respect to that Switch or
RSM, ORM, or EXM, as the case may be, at the following discounts: (a) during any
three periods of six months selected by Customer in the five-year period
following Turnover, Customer's purchases shall be at the discount off List
Prices set forth for the Initial Switch Discount

                         LUCENT TECHNOLOGIES PROPRIETARY                      3
<PAGE>   41

Period in the table above, and (b) for purchases that are made in the five-year
period following Turnover but that are not made during any of the three periods
of six months Customer is entitled to the discounts for the Initial Switch
Discount Period, then the Growth And Additions Switch Discounts in the table
above shall apply. The following restrictions apply: The first two six-month
periods must be used within three years after Turnover of the 5ESS(R)-2000
Switch, RSM, ORM, or EXM, as the case may be, and the third six-month period
must be used during years four or five following Turnover of the 5ESS(R)-2000
Switch, RSM, ORM, or EXM, as the case may be.

E-AIU Products and associated components may be purchased by the Customer for
the prices listed in Attachment A to this Addendum One. That pricing structure
will be in effect for the Term of the Agreement. Customer may purchase
5ESS(R)-2000 Circuit Line Packs (including Analog Line Packs and ISDN Line
Packs) at the prices specified in Attachment A during the Term of this
Agreement.

SLC-2000 Products purchased in substitution for E-AIU Products that are
unavailable to fulfill Customer's order may be purchased by the Customer for the
prices listed in Attachment B to this Addendum One until E-AIU Products become
generally available.

Should growth Peripheral Interface Data Buses (PIDB) be required for an E-AIU to
provide service beyond the 13 Call Completion Seconds (CCS) configured in the
proposal, additional PIDB pairs #10 and 12 shall be provided at the following
price:

<TABLE>
<CAPTION>
       Description              Price
<S>                             <C>                
       PIDB pair 10             ****
       IDB pair 12              ****
</TABLE>

Any purchase order placed pursuant to this Addendum will reference Contract
Number LMN092697DASBTI to qualify for the discounts, allowances and incentives
incorporated herein. The applicable merchandise class for Seller's 5ESS(R)-2000
Products and related Licensed Materials shall determine the applicable discount
level. Engineering and Installation services are excluded from the discounted
pricing in this Addendum.

A-1.4 PRICING PLAN FOR SWITCH SOFTWARE RELEASES

For purposes of this section, the fees for Base Software releases shall mean the
Software Right-to-Use (RTU) and Office Data Administration (ODA). During the
Term, Customer's purchase of an initial 5ESS(R)-2000 Switch will include the
then-current Base Software release. However, if Customer orders an initial
5ESS(R)-2000 Switch which is shipped within forty-five (45) days prior to the
published general availability of the next Base Software release, Seller will
provide such Base Software release at no charge. Additional Base Software
releases licensed by Customer will be at a cost of $80,000 per initial
5ESS(R)-2000 Switch for Base Software releases. Seller will be responsible for
all engineering and installation charges associated with the Base Software
release furnished by Seller under this Addendum. The above price and services
are for the software retrofit

                      LUCENT TECHNOLOGIES PROPRIETARY                         4
<PAGE>   42

only, any hardware requirements to support a release will be quoted separately
for product, engineering and installation.

A-1.5 5ESS(R)-2000 SWITCH TRAINING INCENTIVE

Seller will provide forty (40) tuition-free days for three (3) persons for its
initial 5ESS(R)-2000 Switch. An additional forty (40) days each of tuition free
training will be provided for one (1) person per 5ESS(R)-2000 Switch ordered
after the initial 5ESS(R)-2000 Switch. An additional forty (40) days each of
tuition free training will be provided for one (1) person for every three
5ESS(R)-2000 Switches ordered after the initial 5ESS(R)-2000 Switch. This
training may be used any time during the first twelve (12) months after Switch
installation. Customer is responsible for all associated travel and living
expenses for Customer personnel. Seller, at its option, shall offer training at
the Altamonte Springs Training Center. While Seller recommends core courses from
its Seller's Training Catalog, any 5ESS(R)-2000 Switch-related courses may be
taken at Customer discretion.

A-1.6 FIVE FACILITY ACCESS INCENTIVE

Seller will provide Customer access to Seller's Feature Interactive Verification
Environment (FIVE) facility in Lisle, Illinois so that Customer may test the
following: new Seller features, verification of new applications, and simulation
of call scenarios. Customer may use such facility on a billable basis to
integrate equipment for Customer-specific applications, subject to Seller's
General Agreement respecting use of that facility. Such access is given on a
reservation basis. Customer agrees to be reasonable in its requests for
reservations and will provide reasonable notice of any cancellation.

A-1.7 FEATURE ACTIVATION AND RECONCILIATION

All 5ESS(R)-2000 Switch software furnished under this Addendum will include free
Feature Activation Counting and Reconciliation (FACR). This feature will be used
for the sole purpose of tracking and billing optional RTU features which are
activated by Customer. Customer hereby agrees to the implementation of this
feature in the 5ESS(R)-2000 Switch office. The purpose of the implementation is
to facilitate a semi-annual network audit of RTU features activated by Customer,
with the cooperation of Customer. Contractual prices and billing terms will be
applied to the results of the semi-annual audit.

Records and information gathered from the semi-annual audits will be used
exclusively for the sole purpose of billing Customer for any activated optional
RTU features.

RTU Fees that are activated, tracked by FACR, and are reported in the
Semi-Annual audit will be discounted 50% as described in section 1.7 of this
Addendum. Any features not tracked by FACR and purchased outside the initial
discount period will be discounted 25% (i.e. maintenance features are not
tracked by FACR).

A-1.8 ENTIRE AGREEMENT

                         LUCENT TECHNOLOGIES PROPRIETARY                      5
<PAGE>   43

Except as specifically modified herein, all terms and conditions of the General
Agreement shall remain in frill force and effect. The terms and conditions
contained in this Addendum and those non-conflicting terms and conditions of the
General Agreement supersede all prior oral and written understandings between
the parties and shall constitute the entire agreement between the parties with
respect to the subject matter herein. This Addendum shall not be modified or
amended except by a writing signed by an authorized representative of both
parties.

IN WITNESS WHEREOF, the parties have caused this Addendum to be executed by
their duly authorized representatives on the date(s) indicated.

Birch Telecom, Inc.                   Lucent Technologies, Inc.                 

                                      
By: /s/ David E. Scott                By: /s/ Bill Plunkett                     
   --------------------------            -----------------------------          
                                      
Typed Name: David E. Scott            Typed Name: Bill Plunkett          
                                           
Title: President                      Title: Vice President, Sales 
                                      
Date: 2/16/98                         Date: 2/17/98                             

                         LUCENT TECHNOLOGIES PROPRIETARY                      6
<PAGE>   44

            Attachment A to Addendum One of Contract LNMO92697DASBTI

                                 E-AIU Pricing

Incentive E-AIU Pricing

Customer may purchase the following E-AIU Products for its initial E-ART
deployment at one collocation site for the special price of ****

600 Type AIU Cabinet e/w
    1472 Analog
    160 ISDN

<TABLE>
<CAPTION>
Description                     NSEP      Quantity
- --------------------------------------------------
<S>                            <C>        <C>
6 Shelf Empty EAIU Cabinet     EAIU600        1
Controller Pack                DAC624         6
Ringing Control Pack           RGP100         2
Analog Line Pack               LPZ100        46
ISDN Line Pack                 LPANSI        10
Subscriber Loop Measurement    SLIM2          1
                 Total Price                ****
</TABLE>

This is a one-time only price for the first E-AIU system.

Regular E-AIU Pricing

Once the first E-AIU system is purchased at the above special incentive price,
future E-AIU Products shall be priced as identified below.

600 Type AIU Cabinet e/w
    1472 Analog
    160 ISDN

<TABLE>
<CAPTION>
                                                  Global
                                                  List     Discounted   Extended
Description                     NSEP     Quant.   Price       Price       Price
- --------------------------------------------------------------------------------
<S>                            <C>       <C>      <C>      <C>          <C>
6 Shelf Empty EAIU Cabinet     EAIU600     1      66000       ****         **** 
Controller Pack                DAC624      6      6500        ****         ****
Ringing Control Pack           RGP100      2      3000        ****         ****
Analog Line Pack               LPZ100      46     2820        ****         ****
ISDN Line Pack                 LPANSI      10     9426        ****         ****
Subscriber Loop Measurement    SLIM2       1      3900        ****         ****
                Total Price                                                ****
</TABLE>

While the quantities and extended prices set forth in the table above reflect a
particular size and configuration, Customer may purchase any quantity of E-AIU
Products at the unit prices set forth in the Discounted Price column of the
table above.


                                       1
<PAGE>   45

        Attachment B to Addendum One of Contract LNMO92697DASBTI 

                        Interim SLC-2000 Product Pricing

Until E-AIU Products are generally available in quantities sufficient to meet
Customer's orders, Seller shall sell the following SLC-2000 Products to Customer
for the total purchase price of **** plus engineering, installation and
shipping:

      1.    7' Bay Frame Configuration
      2.    Metallic DS1 Feeder Interface
      3.    8 DS1 Feeders (2 ELIUs + 1 protect)
      4.    e/w 672 POTS (168 SPQ40l Channel Units)
      5.    e/w 96 ISDN (24 ISDN Channel Units)

<PAGE>   1
   
PLEASE NOTE: CERTAIN TERMS CONTAINED HEREIN (REPRESENTED BY A "****") HAVE BEEN 
OMITTED PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT. SUCH TERMS HAVE BEEN 
FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION.
    

                                                                   Exhibit 10.14

                                                                  Execution Copy

                               SAVILLE SYSTEMS INC

                           Software License Agreement

BIRCH TELECOM, INC.
1000 Walnut, Suite 1220
Kansas City, Missouri 64106

Thank you for choosing SAVILLE SYSTEMS INC. ("Saville"). The terms appearing
below and on the attached Schedule A, which is incorporated by this reference,
form Saville's Agreement with BIRCH TELECOM, INC. ("Customer") for licensing
software and documentation. Please read carefully and sign this Agreement in
duplicate. Both executed copies (including Schedules) should be returned to
Saville for written acceptance. Once accepted, Saville will sign both copies and
then return one of those copies to you.

1.    License Term:

The license term starts on the date on which Saville executes this Agreement and
shall continue for a period of ninety-nine (99) years unless terminated earlier
in accordance with this Agreement.

2.    License Grant:

a.    Saville grants Customer a license to use Saville's software in object code
      form (the "Software"), and the associated user documentation (the
      "Documentation" and, collectively with the Software, the "Software
      Products") described in Schedule A under the terms of this Agreement. This
      license is non-exclusive. Customer may not make any copies unless Customer
      has paid the applicable fees and is otherwise authorized by Schedule A to
      do so, except that Customer may make one complete backup copy of the
      Software Products for emergency or archival use. Customer may not use more
      than the number of copies nor utilize the Software Products to bill more
      than the number of Subscribers (which shall mean the monthly aggregate
      number of billing telephone numbers or call record identifiers as
      applicable), which Customer has licensed hereunder. Initially, the
      Customer's license shall include up to **** Subscribers. If upon quarterly
      review of the number of Subscribers, Customer exceeds the number of
      Subscribers licensed hereunder at that time, Customer shall so notify
      Saville of its need to increase the number of Subscribers licensed
      hereunder (the "Additional Subscriber Notification") and shall pay the
      applicable additional License Fee in accordance with Paragraph 3 hereof.
      Customer agrees to keep records of the number and location of copies in
      its possession and to permit Saville to audit such records and Customer's
      use of the Software Produce during normal business hours upon reasonable
      notice to Customer. Customer shall not remove or alter any trademark,
      copyright, or other proprietary notice contained on or in any Software
      Product. Saville's copyright notice and other proprietary legends and
      labels affixed on the Software Product as delivered by Saville must also
      be affixed on and in all copies. The inclusion of a copyright notice on
      any software product or documentation shall not cause, or be construed to
      cause, it to be a published work.


                                        1
<PAGE>   2

b.    Use of the Software Products is restricted to residence and use on the
      equipment on Schedule A. Customer may use the Software Products in
      multi-processor environments, provided that Customer has paid all
      applicable License Fees. All installation and use of the Software Products
      is restricted to the locations specified in Schedule A or at such other
      locations as may be approved by Saville in writing (the "Permitted
      Locations"); provided that use at any such Permitted Location shall
      include reasonable remote access to such Software Products installed at
      such Permitted Location. Saville will not unreasonably withhold its
      consent to the movement to or use of the Software Products at another
      location or on different equipment. All Software Products may only be used
      with the operating environment specified in the Documentation. These
      restrictions are in addition to any set forth in the Schedules.

c.    This license may not be transferred or sublicensed by Customer, except
      that Customer may sublicense the Software Products (without making any
      additional copies, except as permitted in this Agreement) to its
      Affiliates so long as: (i) each such Affiliate acknowledges in writing
      that it will comply with all terms and conditions of this Agreement and
      will use the Software Products only for the same application as Customer;
      (ii) Saville immediately receives a copy of that acknowledgement; and
      (iii) Customer remains fully liable for such Affiliate's compliance. As
      used in this Section, "Affiliate" shall mean an entity controlled by,
      controlling or under common control with Customer. Any other attempted
      assignment, sublicense or transfer by Customer of this Agreement or the
      Software Products shall be void. Customer may use the Software Products
      only to process its own data and only for internal operations. Customer
      may not use the Software Products to offer timesharing or other
      computer-based services to third parties.

d.    Saville may terminate Customer's license only in the event of a material
      breach by Customer not cured within 30 days after Saville gives notice of
      such breach to Customer. However, no notice will be required in the event
      of a material breach by Customer of Paragraph 8 below (Ownership and
      Confidentiality). Upon termination for any reason, Customer shall
      immediately return the Software Products, destroy all copies (including
      those in computer memory), and stop all usage.

e.    Customer agrees to allow Saville to monitor compliance with these
      conditions in a manner which does not interfere with normal business
      operations.

3.    Pricing and Payment Terms:

Schedule A sets forth the current fees that apply to Customers license of the
Software Products (the "License Fees"), exclusive of applicable taxes. The
Initial License Fee, as defined in Schedule A, shall be invoiced upon shipment
of the Software Products. Unless otherwise provided in Schedule A hereto, all
additional license fees shall be invoiced at Saville's then current License Fees
upon Saville's receipt of the Additional Subscriber Notification. Fees for
services hereunder, including installation or training, shall be invoiced
monthly during rendition of such services. In addition, Customer will be
responsible for reimbursing Saville for reasonable out-of-pocket travel and
living expenses related to on-site services for installation or training. Other
than the Initial License Fee which shall be due fifteen (15) days from the date
of invoice, all payments hereunder shall be due thirty (30) days from the date
of the applicable


                                        2
<PAGE>   3

invoice. Customer agrees to pay all sales, use, personal property, value added
or other taxes associated with this Agreement or the Software Products and
services, except taxes on Saville's net income. Past due payments bear interest
from the due date at the rate of the lesser of 1 1/2% per month or the highest
rate permitted by applicable law. All amounts due shall be paid in U.S. Dollars.
All other pricing and payment terms are as described in the applicable separate
agreement, if and when executed by Saville and Customer.

4.    Delivery and Installation:

a.    Schedule A sets forth the delivery dates for the Software Products. Risk
      of loss will not pass to Customer until delivery to Customers designated
      address. Software Products cannot be returned once shipped. Replacement
      copies of the Software Products may be obtained on Saville's standard
      media with a physical preparation charge if Customer's copies become lost
      or damaged while in Customer's possession.

b.    If Customer chooses to have Saville install the Software Products, such
      installation work shall be charged to Customer based on Saville's hourly
      rates then in effect, plus reimbursement for materials and other related
      expenses incurred by Saville in performing such work. During any such
      installation work, Customer will let Saville use Customer's system and
      equipment in order to test and install the Software Products. Customer
      must provide the necessary operating environment, as specified in the
      Documentation. The rendition of services hereunder shall not confer upon
      Customer any greater rights in the Software Products nor enlarge any of
      Saville's liabilities or warranties beyond those which are specified under
      this Agreement. Saville reserves the right to provide similar services for
      others.

5.    Maintenance and Training:

Support Services, as defined in the Software Maintenance Agreement attached as
Schedule B hereto (the "Maintenance Agreement"), are provided at no cost for the
initial period of one hundred eighty (180) days beginning with the first day of
the month in which the Software Product was delivered to the Customer (the
"initial Period"). After the Initial Period, Customer may purchase Support
Services at the prices and on the terms set forth in the Maintenance Agreement.
The foregoing and the Maintenance Agreement, if and when executed, set forth
Saville entire maintenance obligation. Saville shall have the right to charge
reasonable fees if Saville spends time investigating or fixing a problem which
is not caused by a current standard release of a Software Product. Due to
difficulties in providing maintenance on a piecemeal or component basis, Saville
reserves the right to refuse to provide maintenance for less than all systems
and components under license. See Schedule A for information on training.

6.    Customization Services:

Customization services will not be performed unless Saville and Customer enter
into a separate written Customization Services Agreement in the form which is
attached as Schedule C hereto.

7.    Warranty and Remedy:

a.    Saville warrants that it has the right to grant Customer this license.
      Saville further warrants that the Software Products delivered to Customer
      will at time of delivery (or


                                        3
<PAGE>   4

      installation if Saville installs it) perform substantially in accordance
      with the Documentation, provided that Customer supplies the operating
      environment specified in the Documentation. If Saville is unable, after
      reasonable efforts, to correct or replace such non-conforming Software
      Product, Customer's sole remedy shall be the refund of an amount not to
      exceed the actual payments received by Saville for such non-conforming
      Software Product, and Customer shall have no rights in respect of such
      non-conforming Software Product. If Saville determines that the Software
      Product for which Customer's requested warranty service is not eligible
      for warranty service, for any reason, Customer shall pay or reimburse
      Saville for all costs of investigating and responding to such request at
      Saville's then prevailing time and materials rates. Saville shall have no
      obligation to make repairs, replacements or corrections which result, in
      whole or in part, from normal wear and tear, catastrophe, fault or
      negligence of Customer, improper or unauthorized use of the Software
      Products, causes external to the Software Products or use of the Software
      Products in a manner for which they were not designed.

b.    Saville represents and warrants that the Software Products licensed under
      this Agreement are designed to be used prior to, during, and after the
      calendar year 2000 A.D., and without human intervention will correctly
      recognize, calculate, process, sequence, store and transmit Date Data
      without error or interruption, including leap years, and including errors
      or interruptions from functions which may involve Date Data from more than
      one century. The term "Date Data" shall mean any data or input which
      includes an indication of or reference to date and that is stored
      information and internal to fructionality. Date calculations involving
      either a single century or multiple centuries will neither cause an
      abnormal ending nor generate incorrect or unexpected results. When sorting
      by date, all records will be sorted in accurate sequence and when the date
      is used as a key, records will be read and written in accurate sequence.
      As used in the previous sentence, accurate sequence means, by way of
      example, that records will be read, written, and sorted in ascending order
      so that the year 1999 is before the year 2000. The Software Products will
      calculate, process, and display leap year information according to the
      following algorithm: (i) a leap year will have twenty-nine (29) days in
      the month of February; and (ii) a leap year occurs in all years divisible
      by 400 and all years evenly divisible by 4 and not evenly divisible by
      100. Saville makes no representation or warranty nor takes any
      responsibility for errors or omissions caused by third party systems,
      devices, interfaces or software.

c.    SAVILLE'S SOLE OBLIGATION AND CUSTOMER'S EXCLUSIVE REMEDY FOR ANY WARRANTY
      FAILURE IS THE CORRECTION OR REPLACEMENT OF THE NONCONFORMING SOFTWARE
      PRODUCTS OR SERVICES OR THE REFUND OF AN AMOUNT NOT TO EXCEED THE ACTUAL
      PAYMENTS RECEIVED BY SAVILLE FOR SUCH SOFTWARE PRODUCTS, ALL AS PROVIDED
      IN SECTION 7(a).

c.    THE WARRANTIES CONTAINED IN THIS AGREEMENT ARE EXCLUSIVE. THEY ARE IN LIEU
      OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT
      LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
      PARTICULAR PURPOSE, TITLE OR NON-INFRINGEMENT, OR ARISING BY STATUTE OR
      OTHERWISE IN LAW OR FROM A COURSE OF DEALING OR USAGE OF TRADE.


                                        4
<PAGE>   5

8.    Ownership and Confidentiality:

a.    All Software Products and the media on which they are delivered to
      Customer remain the sole and exclusive property and trade secret of
      Saville and its licensors. Customer shall not modify, adapt, translate,
      reverse engineer, decompile, disassemble, or create derivative works based
      on the Software Products.

      Customer agrees to take reasonable security precautions to prevent
      disclosure of the Software Products to third parties and to protect and
      maintain confidentiality of the Software Products. Customer shall
      immediately notify Saville of any unauthorized disclosures. Saville will
      have the same confidentiality obligation to Customer for any specific
      confidential information Customer supplies to Saville.

b.    The recipient of confidential material or information will have no
      confidentiality obligations with regard to such material or information to
      the extent it is: (i) generally disclosed by the disclosing party without
      restrictions on confidentiality, (ii) rightfully supplied to the recipient
      by a third party without restrictions on confidentiality; or (iii)
      otherwise becomes generally publicly known without any fault on the part
      of the recipient.

c.    Injunctive relief, in addition to any other right or remedy, shall be an
      appropriate remedy to enforce the provisions of this Paragraph 8.

9.    Responsibility:

a.    Customer will be responsible for establishing reasonable backups, accuracy
      checks, and security precautions to guard against possible malfunctions,
      loss of data or unauthorized access.

b.    Subject to Saville obligations under Paragraph 11, Customer agrees to
      indemnify and hold Saville harmless from any claim, loss or liability
      arising out of Customer's use of the Software Products or services, except
      to the extent caused by Saville's gross negligence or willful misconduct.

10.   LIMITATION OF LIABILITY:

a.    EXCEPT AS OTHERWISE PROVIDED IN PARAGRAPH 11, SAVILLE'S LIABILITY AND THAT
      OF ITS AGENTS, REPRESENTATIVES, AND EMPLOYEES TO CUSTOMER FOR DAMAGES WITH
      RESPECT TO THIS AGREEMENT, THE SOFTWARE PRODUCTS, OR SERVICES SHALL NOT
      EXCEED IN THE AGGREGATE THE FEE OR PRICE FOR THE PARTICULAR SOFTWARE
      PRODUCTS OR SERVICES INVOLVED IN THE CLAIM. IN NO EVENT SHALL SAVILLE HAVE
      ANY LIABILITY FOR INCIDENTAL, CONSEQUENTIAL OR, SPECIAL DAMAGES INCLUDING,
      WITHOUT LIMITATION, LOST REVENUES, DATA OR PROFITS. THE LIMITATIONS AND
      EXCLUSIONS IN THIS PARAGRAPH SHALL APPLY TO ALL CLAIMS OF EVERY NATURE,
      KIND AND DESCRIPTION WHETHER ARISING FROM BREACH OF CONTRACT, BREACH OF
      WARRANTY, NEGLIGENCE OR OTHER


                                      5
<PAGE>   6

      TORT, OR OTHERWISE. DAMAGES AS LIMITED BY THIS PARAGRAPH IS CUSTOMER'S
      SOLE AND EXCLUSIVE ALTERNATIVE REMEDY IN THE EVENT THAT ANY OTHER REMEDY
      PROVIDED IN THIS AGREEMENT FAILS OF ITS ESSENTIAL PURPOSE.

b.    Saville will not be responsible for any delay or failure in performance
      for causes beyond its reasonable control, including without limitation,
      acts of God, any government, its suppliers, or any other similar or
      dissimilar cause.

11.   Patents and Copyrights:

a.    Saville will defend and indemnify Customer, at Saville's expense, against
      any claim or suit against Customer based on alleged violation of a United
      States patent or copyright through Customer's use of the Software Products
      in accordance with this Agreement and will pay all costs, settlements, or
      judgement finally awarded, provided Saville has the right to control the
      defense of the litigation, Customer takes such actions as Saville may
      reasonably request at Saville's expense, and Customer gives Saville prompt
      and timely written notice of any claim. If a judgement is obtained against
      Customer's use of any part of the Software Products, or if a lawsuit has
      been filed or threatened against Saville or any of its customers and
      Saville believes in good faith that there is a likelihood of an adverse
      judgment, Saville shall, at in option and expense: (i) modify or
      substitute the Software Products (but provide Customer with substantially
      the same functionality); (ii) obtain for Customer the right to continued
      use of the Software Products; or (iii) upon written notice to Customer as
      much before such termination as is reasonably practical in the given
      situation, terminate the license and take back the Software Products. In
      the event of termination, Saville will refund Customer its license fees,
      less a reasonable charge for use to the date of termination. Saville will
      have no obligation to defend and indemnify Customer to the extent that
      the claim or liability is based upon use of a noncurrent release of the
      Software Products and could have been avoided by use of a current release,
      or if the claim or liability is based upon modifications made by Customer
      or work performed to Customer's specifications.

b.    THIS PARAGRAPH 11 STATES SAVILLE'S ENTIRE LIABILITY FOR PATENT AND
      COPYRIGHT INFRINGEMENT.

12.   Employees:

In the event that either party directly or indirectly (other than through the
other party) hires, whether as an employee, independent contractor, or in any
other capacity, any person who was, within one year prior to the hiring an
employee of the other party or any of its subsidiaries, such party agrees to pay
the other party a finder's fee equal to 26 times that employee's bi-weekly gross
compensation at the time he or she left the employment of the other party or its
subsidiary. This provision shall apply only to those employees who either worked
for the other party in some capacity or worked with software or applications
which were in some fashion generally similar to any offered or provided
hereunder.


                                       6
<PAGE>   7

13.   General:

a.    This Agreement shall be governed by and construed under the laws of the
      Commonwealth of Massachusetts, exclusive of its choice of law rules. This
      is an integrated Agreement. It contains the full understanding of the
      parties and supersedes all other understandings, agreements,
      representations or correspondence, written or oral, regarding its subject
      matter. This Agreement may be amended, modified or waived only by another
      writing signed by the authorized representatives of both parties. Headings
      are for convenience; they shall not be used to construe this Agreement. In
      the event Customer issues a purchase order or other document covering the
      subject matter of this Agreement, it is agreed that in the event of a
      discrepancy between such purchase order and this Agreement, the terms and
      conditions of this Agreement shall prevail. No license under this
      Agreement, including the initial license, shall be effective unless
      accepted in writing by an authorized representative of Saville, Paragraphs
      7(c) through 13 and the record keeping and audit provisions of Paragraph 2
      shall survive termination of this Agreement. Any action against Saville
      under this Agreement or related to its subject matter must be brought
      within one year after the cause of action accrues.

b.    All notices shall be in writing and shall be sent by personal delivery, by
      a reputable nationwide overnight courier service, or by facsimile with
      confirmed answerback. Notices to Customer shall be sent to Customer's
      billing address shown above, attention Senior Vice President Business
      Development with a copy to General Counsel at the same address. Notices to
      Saville shall be sent to the attention of the President, Saville Systems,
      One Van de Graaff Drive, Burlington, Massachusetts 01803. Notices shall be
      effective upon delivery in the case of personal delivery, on receipt in
      the case of facsimile, and one day after it is sent via overnight courier.
      Unless otherwise provided in Schedule A hereto, prices of the Software
      Products and other items and services are subject to change in the future
      with thirty (30) days prior notice. Current pricing schedules will be
      supplied upon request.

c.    All disputes arising out of or relating to this Agreement shall be finally
      settled by arbitration conducted in Boston, Massachusetts, U.S.A. under
      the rules of commercial arbitration of the American Arbitration
      Association ("Rules"). Both parties shall bear equally the cost or the
      arbitration (exclusive of legal fees and expenses, all of which each party
      shall bear separately). All decision, of the arbitrator(s) shall be final
      and binding on both parties and enforceable in any court of any court of
      competent jurisdiction. Notwithstanding the foregoing, in the event of
      breach by a party of its obligations hereunder, the non-breaching party
      may seek injunctive or other equitable relief in any court of competent
      jurisdiction.

d.    Nothing in this license shall be construed to constitute or create a joint
      venture, partnership, or formal business organization of any kind and the
      rights and obligations of each party shall be only those expressly set
      forth herein. Neither party shall have authority to bind the other, and
      neither party assumes any liabilities of the other party.

e.    If during the term of this Agreement, Saville agrees to license, transfer
      or otherwise provide to any other customer products, including without
      limitation Software, (a) with substantially similar specifications as the
      software provided to Customer under this Agreement, (b) at quantities
      equal to or less than the quantities being purchased by


                                       7
<PAGE>   8

      Customer hereunder, (c) under substantially similar circumstances as
      provided hereunder and (d) for selling prices lower than the prices to
      Customer for products hereunder, then the prices to Customer for such
      products under this Agreement shall be automatically reduced to such lower
      prices for that period of time which Saville is offering the lower prices
      to such other customer.

THE ABOVE TERMS AND CONDITIONS ARE AGREED TO AND ACCEPTED AND ARE HEREBY
EXECUTED BY THE PARTIES UNDER SEAL.
(Please sign and return two copies of this agreement).

BIRCH TELECOM, INC.                          Accepted at Saville Systems Inc.   
                                             
                                             
By: /s/ David W. Vranicar                    By:                                
    ---------------------------                  ---------------------------    
                                                                                
Name: David W. Vranicar                      Name: John Kiley                   
                                                                                
Title: Senior Vice President                 Title: Senior Vice President       
                                                                                
Date: June 9, 1998                           Date:                              
                                                                                
                                             
                                       8
<PAGE>   9

      Customer hereunder, (c) under substantially similar circumstances as
      provided hereunder and (d) for selling prices lower than the prices to
      Customer for products hereunder, then the prices to Customer for such
      products under this Agreement shall be automatically reduced to such lower
      prices for that period of time which Saville is offering the lower prices
      to such other customer.

THE ABOVE TERMS AND CONDITIONS ARE AGREED TO AND ACCEPTED AND ARE HEREBY
EXECUTED BY THE PARTIES UNDER SEAL.
(Please sign and return two copies of this agreement.)

BIRCH TELECOM, INC.                          Accepted at Saville Systems Inc.   


By:                                          By: /s/ John Kiley                 
    ---------------------------                  ---------------------------    
                                                                                
Name: David W. Vranicar                      Name: John Kiley                   
                                                                                
Title: Senior Vice President                 Title: Senior Vice President       
                                                                                
Date: June 9, 1998                           Date:                              


                                       8
<PAGE>   10

                                   Schedule A

I.    Licensed Software Products

      Saville CBP AS/400 3.2 for up to **** Subscribers, including Updates as
described in the Software Maintenance Agreement, if such Software Maintenance
Agreement is in full force and effect between Saville and Customer at the time
of the release of such Update, and all associated Documentation License for
greater than **** Subscribers will be granted upon payment of the applicable
additional License Fees as provided in Section 3 of the License Agreement.

II.   Equipment Operating Environment and Permitted Location

      IBM AS/400 at Customer's premises located at 324 East 11th Street, Suite
1500, Kansas City, Missouri 64l06, or such other equipment or locations as may
be approved by Saville, in writing.

III.  License Fees

                                        North America
Number      of         Subscribers*     License Fee**

****       ****            ****              ****
****       ****            ****              ****
****       ****            ****              ****
****       ****            ****              ****
****       ****            ****              ****
****       ****            ****              ****
****       ****            ****              ****
****       ****            ****              ****
                                         
* Subscriber counts will be reviewed quarterly for the life of the contract.

** All License Fees are in United States Dollars and apply cumulatively, i.e.,
the additional License Fee to move from one Subscriber level to the next is the
difference between the previous level and the new level. The above License Fees
shall be in effect for two years from the date of execution of this Agreement
and shall not increase by more than 10% in each of the third and fourth years
after the date of execution of this Agreement. Thereafter, License Fees shall be
at Saville's then current levels.

*** The "Initial License Fee."


                                       9
<PAGE>   11

IV.   Delivery

      Saville shall deliver Saville AS/400 3.2 for up to **** Subscribers to
Customer's principal place of business within seven (7) days after the date of
execution of this Agreement.

V.    Training

      This will be delivered in the Statement of Work.

VI.   Permitted Use

      Except as may otherwise be agreed to by Saville and Customer in writing,
Customer shall be permitted to use three (3) copies of the Software Products -
one for production, one for training and testing and one for backup or archiving
to be integrated with Customer's disaster recovery system.


                                       10
<PAGE>   12

                                   Schedule B

                         SOFTWARE MAINTENANCE AGREEMENT

BIRCH TELECOM, NC.
1000 Walnut, Suite 1220
Kansas City, Missouri 64106

Thank you for choosing SAVILLE SYSTEMS INC. ("Saville") to provide you
("Customer") with maintenance services. The terms appearing below form our
Agreement for maintaining the Software Products, as that term is defined in a
Software License Agreement between Saville and Customer (the "Software License
Agreement"). Please read carefully, and sign this Agreement in duplicate. Both
copies should be returned to Saville for written acceptance. Once accepted,
Saville will sign both copies and then return one of those copies to you.

These maintenance services will be provided by Saville only with respect to
Software Products.

1. Definitions. Capitalized terms used herein that are not defined shall have
the meaning given to such term in the Software License Agreement.

      (a) Commencement Date. The later of (i) the date upon which Saville and
Customer have executed this Agreement and (ii) the date following the expiration
of the Initial Period as such term is defined in Section 5 of the Software
License Agreement.

      (b) Licensed Software. All Software Products licensed to Customer under
the Software License Agreement.

      (c) Maintenance Period. A period of twelve (12) consecutive months
commencing on the Commencement Date of this Agreement, and each twelve month
period thereafter.

      (d) Support Service. The Licensed Software support service ordered by
Customer and furnished under this Agreement, as such service is available and
constituted from time to time in accordance with this Agreement.

      (e) Updates. Product updates, problem corrections, modifications or
enhancements to the Licensed Software.

2. Term. The term of this Agreement shall commence on the Commencement Date and
shall be for a period of one year. This Agreement shall continue thereafter in
full force and effect on a year-to-year basis unless sooner terminated in
accordance with Section 4 hereof.

3. Services to be Provided.

      Saville shall provide the following services during a Maintenance Period:

      (a) Problem Correction. Saville shall use reasonable efforts to diagnose
and correct documented problems which Customer reports in using the Licensed
Software. However, under


                                       11
<PAGE>   13

no circumstances does Saville warrant or represent that all problems can or will
be connected. Saville will respond to Customer and initiate problem resolution
activities within one hour of a reported CRITICAL problem, within 24 hours of a
MAJOR problem, within 48 hours of a SERIOUS problem, prior to the next Update
for a MINOR problem;

              (i) A CRITICAL problem is one which causes a substantial system
failure or renders the Software Products substantially unusable, and an
immediate fix is required;

             (ii) A MAJOR problem is one which causes a system or Software
Products feature failure that cannot be avoided by alternate methods by the
user;

            (iii) A SERIOUS problem is one which causes a Software Products
feature or system failure that can be avoided by alternate methods by the user;
and

             (iv) A MINOR problem is one which causes an inconvenience to the
user of the Software Products, including but not limited to message and
Documentation errors.

      The following sets forth the escalation of Saville management involvement
during the period a CRITICAL problem that has not been corrected. The Involved
Manager Listed below will present Customer's designated representative with a
status update on the CRITICAL problem at the time listed next to such Involved
Manager's name.

HOURS AFTER REPORTED CRITICAL PROBLEM        INVOLVED SAVILLE MANAGER
- -------------------------------------        ------------------------
            4                                Customer Service Manager
            8                                Project Manager
           12                                Consulting Manager
           16                                Vice President Operations
           20                                Senior Vice President Operations
           24                                Chief Operating Officer

      The following sets forth the escalation of Saville management involvement
during the period a MAJOR problem has not been corrected. The Involved Manager
listed below will present Customer's designated representative with a status
update on the MAJOR problem at the time listed next to such Involved Manager's
name.

HOURS AFTER REPORTED MAJOR PROBLEM           INVOLVED SAVILLE MANAGER
- ----------------------------------           ------------------------
            8                                Customer Service Manager
           16                                Project Manager
           24                                Consulting Manager
           32                                Vice President Operations
           40                                Senior Vice President Operations
           48                                Chief Operating Officer

      If Customer reports a problem to Saville, Customer shall give Saville
reasonable access to the equipment on which the Licensed Software operates, the
Licensed Software and all relevant documentation and records, and shall provide
such reasonable assistance as Saville may request, including sample output and
other diagnostic information in order to assist Saville in providing maintenance
service.


                                       12
<PAGE>   14

      (b) Updates. Saville shall provide Customer, at no additional cost,
Updates for the Licensed Software under maintenance when such Updates are
developed or published by Saville. Any other software or documentation developed
or published by Saville will be offered to Customer at Saville's ten current
published rates. All Updates shall become part of the Licensed Software.

      Any changes to program logic made under this Agreement shall be provided
to Customer on any machine-readable media specified by Saville. All work carried
out by Saville under this Maintenance Agreement will be chargeable to Customer
at Saville's then current hourly rate if it is found that no problem or
programming error in the Licenses Software exists.

      (c) Hotline Service. From 07:00 to 19:00 Eastern Time, Saville shall
provide Customer remote access to Saville personnel to help Customer in
answering routine questions with respect to use of the Licensed Software.
Customer's access to Saville personnel shall include both telephone access and
access by means of Saville's electronic mail service when made available by
Saville, provided, however, that all common carrier charges incurred by Customer
and all costs of telephone and terminal equipment incurred by Customer shall be
the responsibility of Customer. Saville shall make available to Customer a
reasonable mechanism for prompt notification of CRITICAL and MAJOR problems 24
hours per day.

4. Support Service Term.

      (a) Commencement. Saville will begin Support Service for the Licensed
Software on the Commencement Date.

      (b) Continuation. Saville will furnish Support Service for the Licensed
Software for successive Maintenance Periods until terminated by written notice
from one party to the other.

      (c) Termination. Except as otherwise provided herein.

            (i) Notice. Either party may terminate this Agreement as of the end
of any Maintenance Period by giving written notice to the other, such notice to
be given by the party wishing to terminate this Agreement at least sixty (60)
days prior to the end of any Maintenance Period.

            (ii) Default. Either party may terminate this Agreement at any time
if the other party fails or default, in the performance of any of its
obligations hereunder, effective upon such party giving written notice of
termination to the defaulting party. In the event Customer terminates this
Agreement under this Section 4(c)(ii), Saville shall reimburse Customer the
Maintenance Charge associated with the remaining months in the Maintenance
Period, such reimbursement to be calculated as the number of months remaining in
the Maintenance Period at the time of the termination divided by 12 multiplied
by the Maintenance Charge.

            (iii) License Expiration. This Agreement shall terminate
automatically upon termination or expiration of the software license that is the
subject of the Software License Agreement.


                                       13
<PAGE>   15

5. Customer Responsibilities

      (a) Interface. Except as otherwise provided in this or any other written
agreement between Customer and Saville, Customer shall be responsible for the
interface between Licensed Software for which Support Service is available and
all other software used by Customer.

      (b) Installation and Operation. Except as otherwise provided in this or
any other written agreement between Customer and Saville, Customer is
responsible for installing, managing and operating the Licensed Software.

      (c) Software License Limitations. Customer agrees that the rights granted
to Customer, the use limitations and Customer's responsibilities to prevent
unauthorized disclosure specified in the Software License Agreement apply
equally to all Support Services and the end product of such support services,
such as corrective code, enhancements end Updates furnished under this
Agreement.

      (d) Modifications by Customer. In no event shall Saville have any
responsibility to correct any problems or damage resulting from changes to or
modification of Licensed Software made by Customer.

      (e) Uninstalled Updates. Saville shall not be responsible for correcting
any alleged problem if Customer fails to incorporate in Licensed Software any
Update that Saville has provided to Customer other than the two most recent
updates that Saville has provided to Customer as part of the Support Services.

6. Charges.

      (a) The charge for Support Service pursuant to this Agreement for each
Maintenance Period (the "Maintenance Charge") will be eighteen percent (18%) of
the aggregate License Fee charged pursuant to the Software License Agreement.
The Maintenance Charge shall be invoiced at the commencement of the Maintenance
Period to which such Maintenance Charge applies, with all payments hereunder due
thirty (30) days from the date of the applicable invoice. Past due payments bear
interest from the due date at the rate of the lesser of 1 1/2% per month or the
highest rate permitted by applicable law. All amounts due shall be paid in U.S.
Dollars.

      (b) Maintenance Charges and all other fees in this Agreement are exclusive
of all taxes and Customer shall pay any sales, use, goods and services, personal
property, consumption VAT or other tax and any duties or tariffs that may be
assessed whether based upon the delivery, possession, sale or use of these
maintenance services or otherwise, except for tax based on the income of
Saville.

      (c) Unless otherwise specified, all charges are exclusive of customs or
brokers fees or duties for tools and repair or replacement parts which must be
exported from the United States of America and imported into another country to
enable Saville to fulfill its responsibilities as defined in Sections 3 hereof.
Saville reserves the right to bill Customer for such charges.


                                       14
<PAGE>   16

7. Warranty; Limitation of Remedies.

      (a) Saville warrants that the Support Service rendered hereunder shall be
performed in a professional and workmanlike manner consistent with this
Agreement. The Customer's remedy hereunder is correction of such Support
Service, provided that if Saville is unable, after reasonable efforts, to
correct such Support Service, Customer's sole remedy shall be the refund of an
amount equal to payments made by Customer to Saville under this Agreement for
such Support Service.

      (b) EXCEPT FOR THIS EXPRESS WARRANTY, SAVILLE GRANTS NO WARRANTIES, EITHER
EXPRESSED OR IMPLIED, ON ANY SERVICES INCLUDING, BUT NOT BY WAY OF LIMITATION,
ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR
ARISING BY STATUTE OR OTHERWISE IN LAW OR FROM A COURSE OF DEALING OR USAGE OR
TRADE. THE STATED EXPRESS WARRANTY IS IN LIEU OF ALL LIABILITIES OR OBLIGATIONS
OF SAVILLE FOR DAMAGES INCLUDING, BUT NOT LIMITED TO, INCIDENTAL OR
CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, OCCURRING OUT OF OR IN CONNECTION
WITH THE SERVICES HEREUNDER, EVEN IF SAVILLE HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES.

      (c) SAVILLE'S ENTIRE LIABILITY FOR DAMAGES FOR ANY CAUSE WHATSOEVER AND
REGARDLESS OF THE FORM OF ACTION SHALL BE LIMITED TO THE AGGREGATE AMOUNT OF
FEES (EXCLUDING REIMBURSED EXPENSES) PAID TO SAVILLE FOR SERVICES RENDERED
HEREUNDER.

8. General.

      (a) This Agreement shall be governed by and construed under the laws of
the Commonwealth of Massachusetts, exclusive of its choice of law rules. This is
an integrated Agreement. It contains the full understanding of the parties and
supersedes all other understandings, agreements, representations, or
correspondence, written or oral, regarding its subject matter. This Agreement
may be amended, modified, or waived only by another writing signed by the
authorized representatives of both parties. In the event Customer issues another
document covering the subject matter of this Agreement, it is agreed that in the
event of a discrepancy between such other document and this Agreement, the terms
and conditions of this Agreement shall prevail. Any action against Saville under
this Agreement or related to its subject matter must be brought within one year
after the cause of action accrues.

      (b) All disputes arising out of or relating to this Agreement shall be
finally settled by arbitration conducted in Boston, Massachusetts, U.S.A. under
the rules of commercial arbitration of the American Arbitration Association
("Rules"). Both parties shall bear equally the cost of the arbitration
(exclusive of legal fees and expenses, all of which each party shall bear
separately). All decisions of the arbitrator(s) shall be final and binding on
both parties and enforceable in any court of competent jurisdiction.
Notwithstanding the foregoing, in the event of breach by a party of its
obligations hereunder, the non-breaching party may seek injunctive or other
equitable relief in any court of competent jurisdiction.

      (c) Paragraph 2(c) (assignments) of the Software License Agreement shall
also apply to this Agreement.


                                       15
<PAGE>   17

IN WITNESS WHEREOF Customer and Saville have executed this Software Maintenance
Agreement under seal.

BIRCH TELECOM, INC.                  Accepted at Saville Systems Inc.


By: /s/ David W. Vranicar            By:
    -------------------------            ----------------------------

Name: David W. Vranicar              Name: John Kiley

Title: Senior Vice President         Title: Senior Vice President

Date: June 9, 1998                   Date:


                                       16
<PAGE>   18

IN WITNESS WHEREOF Customer and Saville have executed this Software Maintenance
Agreement under seal.

BIRCH TELECOM, INC.                  Accepted at Saville Systems Inc.


By:                                  By: /s/ John Kiley
    -------------------------            ----------------------------

Name: David W. Vranicar              Name: John Kiley

Title: Senior Vice President         Title: Senior Vice President

Date:                                Date:


                                     16
<PAGE>   19

                                   Schedule C

                        Customization Services Agreement
                              Terms and Conditions

BIRCH TELECOM, INC.
1000 Walnut, Suite 1220
Kansas City, Missouri 64106

Thank you for choosing SAVILLE SYSTEMS INC. ("Saville") to provide you
("Customer") with customization services (the "Project"). The terms appearing
below and on the attached appendices (Appendices 1 and 2), which are
incorporated by this reference, form our Agreement for developing software and
documentation. Please read carefully, and sign this Agreement in duplicate. Both
copies (including Appendices) should be returned to Saville for written
acceptance. Once accepted, Saville will sign both copies and then return one of
those copies to you.

Saville and Customer have also entered into a Software License Agreement
commencing on ______________ (the "Software License").

1.    DEFINITIONS

When used in this Agreement, the following terms shall have the meaning
specified below:

1.1   "Base Software" means the Software Products, as that term is defined in
      the Software License.

1.2   "Billing System" means the Software Products and the Software
      Developments.

1.3   "Documentation" means any printed material in the English language related
      to the Software Developments provided by Saville for use in connection
      with the Billing System.

1.4   "Future Software Developments" means any future developments to the
      Billing System specifically requested by Customer in accordance with
      Section 2.2 hereof.

1.5   "Intellectual Property" means all intellectual and industrial property,
      including copyright, trademarks, patents, industrial designs, mask works
      and integrated circuit topographies, created, developed or reduced by
      practice by a Party under this agreement.

1.6   "Project Plan" means the timetable for accomplishing the Project, as set
      out in the Statement of Work.

1.7   "Software Developments" means the enhancements and developments made by
      Saville in order to adapt the Base Software to the specific requirements
      of Customer, all as listed in the Statement of Work.


                                     17
<PAGE>   20

1.8   "Statement of Work" means the initial statement of work to be
      completed and mutually agreed by the parties pursuant to Appendix 1
      hereto.

1.9   "Technical Specifications" means the detailed design specifications for
      the Software Developments as listed in the Statement of Work, as well as
      the detailed description of the other services to be provided by Saville
      under this Agreement.

2.    SOFTWARE DEVELOPMENTS

2.1.  Initial Implementation

(a)   Based on the Technical Specifications, Saville shall develop the Software
      Developments. These will be done at Saville's premises end at Customer's
      premises as required.

(b)   After acceptance of the Statement of Work by Customer, this document and
      the Statement of Work shall supersede all other definitions or
      descriptions of the Software Developments, both written or oral, whether
      made by Customer or Saville.

(c)   Each Party shall appoint a primary contact and a secondary contact, who
      shall be the contact point for every issue concerning the Project and who
      shall be informed of the progress of the Project. The names of the
      contacts will be exchanged in writing by the Parties. Using the contacts,
      the Parties shall report to each other as mutually agreed upon as to the
      progress being made by each of them in relation to their various
      responsibilities set our in the Project Plan, any delays being encountered
      and the actions being taken to recover from such delays.

      All Software Developments must be authorized by the primary contact - or
      the secondary contact in the absence of the primary contact. The
      authorization will initially be a verbal notification, with a written
      follow-up within 24 hours for sizable developments (i.e. in excess of
      5,000 U.S. Dollars).

      All other work must be authorized by the primary contact - or the
      secondary contact in the absence of the primary contact. The authorization
      will initially be a verbal notification, with a written follow-up within
      24 hours for sizable support request (i.e., in excess of 5,000 U.S.
      Dollars).

(d)   Any additions, modifications or changes to the Technical Specifications
      requested by Customer shall first be submitted to Saville by Customer.
      Within fourteen (14) days, Saville shall reply setting forth the effort,
      if any, on the Project Plan, on the performance of the Billing System end
      on any additional fees payable by Customer. If Customer notifies Saville
      within seven days of receipt from Saville of such reply of its desire that
      such additions, modifications or changes be implemented, this Agreement
      shall be deemed to be amended to reflect any change to the Project Plan
      and to the fees to be paid.

(e)   Customer will certify full acceptance of all Software Developments no
      later than thirty (30) days after delivery of the Software Developments,
      provided that the Software Developments perform substantially in
      conformance with the Statement of Work. In this respect, it is understood
      and agreed upon by both Parties that all Software Developments


                                     18
<PAGE>   21

      shall have been tested by Saville prior to delivery and by Customer after
      delivery in accordance with the testing schedule set forth in the
      Statement of Work.

2.2.  Future Software Developments

(a)   Customer may in the future determine that Future Software Developments
      should be made to the Billing System. Customer will initiate Future
      Software Developments by delivering a draft set of user requirements to
      Saville detailing the general functionality required of the Future
      Software Developments and any other general requirements to be met.

(b)   Saville shall respond within thirty (30) days, unless otherwise agreed by
      the parties, to user requirements received by it under Section 2.2(a)
      above by providing Customer with a written best estimate of the days of
      effort required to carry out the Future Software Developments, together
      with any general comments on the user requirements that may be
      appropriate. The days of effort estimate shall be inclusive of the time
      required to produce Documentation as required under this Agreement,
      project management consultancy work and all Saville internal testing.

(c)   Upon receipt of Saville's estimate under Section 2.2(b) above, Customer
      will review the user requirements for the Future Software Developments and
      shall make any changes that it deems necessary. Customer will then prepare
      a detailed functional specification and a project timetable specifying
      dates for completion of the relevant phases of the Future Software
      Developments based on Saville's days of effort estimate. Customer, may, at
      its discretion, request Saville to complete the project timetable on its
      behalf based on Customer's delivery requirements.

(d)   Upon receipt of the functional specification for the Future Software
      Developments (as prepared under Section 2.2(c) above) and upon completion
      of the project timetable, Saville shall review its days of effort estimate
      and shall advise Customer of the extent to which it can comply with the
      functional specification and the project timetable. The parties shall then
      agree upon any changes to the functional specification or to the project
      timetable which may be necessary to enable Saville to complete the Future
      Software Developments in accordance with both of those documents.

(e)   Upon completion and written agreement by the Parties of the documentation
      referred to in Section 2.2(d) above in the form of a statement of work,
      Saville shall carry out and implement the Future Software Developments in
      accordance with the agreed functional specification and project timetable
      all as set forth in such statement of work.

(f)   The work carried out by Saville to produce a statement of work for Future
      Software Developments will be charged to Customer on a time and material
      basis at an hourly rate equal to Saville's then-current rate for producing
      such quotations.

(g)   Customer will certify full acceptance of all Future Software Developments
      no later than thirty (30) days after the delivery of the Future Software
      Developments, provided that the Future Software Developments perform
      substantially in conformance with the applicable statement of work. In
      this respect, it is understood and agreed upon by both Parties that all
      Future Software Developments shall have been tested by Saville prior to


                                     19
<PAGE>   22

      delivery and by Customer after delivery in accordance with the testing
      schedule set forth in the applicable statement of work.

3.    DEVELOPMENTS AND TESTING EQUIPMENT - SPACE

Customer agrees to provide facilities for Saville, the equipment, Billing System
and the Future Software Developments, at no charge, and Customer will ensure
that Saville has sufficient access to such equipment, Billing System and Future
Software Developments, so long as the security requirements of Customer are met.
Each Party will also provide reasonable work space for the other party's
employees who require work space to furnish the services to be provided under
this Agreement. If development work requires the use of Saville provided
software or hardware environment, there will be an additional charge of $l0 per
developer hour.

4.    CUSTOMER ASSISTANCE

Customer shall assist Saville in the performance of its services under this
Agreement by making available all equipment, software, documentation,
information and personnel required for the execution of this Agreement on a
timely basis. Customer shall also ensure that those of its personnel who are
assigned to assist Saville are familiar with Customer's requirements and have
the expertise and capabilities necessary to permit Saville to undertake and
complete the services under this Agreement.

5.    OWNERSHIP OF SOFTWARE DEVELOPMENTS AND FUTURE SOFTWARE DEVELOPMENTS

5.1 Upon payment of the amounts specified in Section 7, the Software
Developments and all Intellectual Property related to it and, in accordance with
Section 2 of this Agreement, the Future Software Developments and all
Intellectual Property related to it, shall belong and become the joint ownership
of Customer and Saville.

5.2 This ownership by both Parties shall imply that each party will be entitled
to exercise all Intellectual Property rights on these Software Developments and
Future Software Developments (including without Limitation the rights to
disclose, use, sell, license, and adapt) without any interference of the other
Party or any duty to account to the other Party, except that Customer shall not
license any third party to use any of the Software Developments, the Future
Software Developments or the Intellectual Property rights related to them.

6.    DELIVERY SCHEDULE

6.1 The Billing System shall be tested and implemented according to the time
schedule provided in the Statement of Work, on the understanding that if any of
the time-frames are delayed, the other time-frames will be postponed by an equal
number of days.

6.2 From the date of delivery of the Billing System and from the date of
delivery of any Future Software Developments until the end of the Warranty
Period, as defined under Section 9.2 hereof, Saville will immediately correct at
Customer's request free of charge, all reported, reproducible errors, bugs or
any other problems because of which the Billing System and/or any Future
Software Developments does not conform to the applicable statement of work
("Problems") upon notification by Customer.


                                     20
<PAGE>   23

6.3 On the date of the delivery of the Billing System and on the date of
delivery of any Future Software Developments, Customer will initiate acceptance
testing. If Customer is satisfied with the results of the Billing System on the
date which is 15 days after such delivery, a statement of provisional receipt
will be drawn up and signed by Customer and delivered to Saville. In any event
Customer will certify full acceptance of the Billing System no later than thirty
(30) days after delivery of the Billing System or the Future Software
Development as the case may be, provided that the Billing System or Future
Software Developments perform substantially in conformance with the applicable
statement of work.

7.    PRICES, PAYMENT AND PENALTIES

7.1   Fee for Software Developments

Subject to the Statement of Work, work to be performed by Saville on Software
Developments shall be charged to Customer based on Saville's hourly rates which
are from time to time in effect, plus reimbursement for materials and other
related expenses reasonably incurred by Saville in performing such work.
Saville's current hourly rates are set forth in Appendix 2 attached hereto. To
the extent that the aggregate hourly fees charged by Saville for the Software
Developments set forth in the Statement of Work, are greater than **** of the
estimate set forth in the Statement of Work due solely to the acts or omissions
of Saville, the hourly fees set forth in Appendix 2 shall be reduced by **** for
all customization work required to complete such Software Developments beyond
such aggregate expenditure. In addition, provided that no delay or overrun is
caused by the acts or omissions by a party other than Saville or, provided
further that the Statement of Work is not amended or expanded by the parties
hereto, Saville agrees that the aggregate hourly fees charged by it for the
Software Developments in the Statement of Work shall not exceed ****

7.2   Fee for Future Software Developments

Subject to any then effective statement of work or agreement, work to be
performed by Saville on Future Software Developments shall be charged to
Customer based on Saville's hourly rates which are from time to time in effect,
plus reimbursement for materials and other related expenses incurred by Saville
in performing such work. Saville's current hourly rates are set forth in
Appendix 2 attached hereto.

7.3   Expenses

(a)   Customer agrees to reimburse Saville for the cost of travel, at coach
      class or equivalent rate, and time involved in necessary visits to its
      premises to carry out and/or to install the Software Developments and
      future Software Developments, subject to a maximum limit of four (4) hours
      for travel to and from Saville to Customer. Travel time charges will be
      paid at Saville's then-current hourly rate for travel related to
      customization services for its other customers.

(b)   All reasonable accommodation and subsistence expenses incurred by Saville
      will also be reimbursed by Customer. Such expenses must be expressly
      requested by Customer in relation with the Project and for the services
      provided by Saville.


                                       21
<PAGE>   24

(c)   All telecommunication expenses incurred by Saville in relation with the
      Project and for services provided by Saville will also be reimbursed by
      Customer upon presentation by Saville of sufficient written proof of
      reasonable expenses incurred.

(d)   These expenses, except telecommunication expenses, must receive Customer's
      prior written authorization and will be reimbursed upon receipt of an
      invoice with the related vouchers.

7.4   Taxes

Prices in this Agreement are exclusive of all taxes and Customer shall pay any
sales, use, goods and services, personal property, consumption, VAT or other tax
and any duties or tariffs that may be assessed whether based upon the delivery,
possession, sale or use of these customization services or otherwise, except for
tax based on the net income of Saville.

7.5   Invoicing and Payment Terms

(a)   Any payments due Saville from Customer will be invoiced monthly in arrears
      and will be paid thirty (30) days after Customer's receipt of such
      invoice, provided that the payment of the invoice for the final full
      calendar month of implementation of the Software Developments under the
      Statement of Work, shall be due at the end of user acceptance pursuant to
      the Statement of Work, but no later than December 15, 1998. If payment is
      delayed by Customer, other than in accordance with Section 7.5(b) below,
      Saville shall be entitled to charge interest at a rate equal to the lesser
      of: (i) eighteen (18%) per annum; or (ii) the maximum lawful interest rate
      under applicable law. Each such invoice delivered to Customer will provide
      details of the charges to Customer, including Agreement reference numbers,
      applicable rates and hours of Saville personnel providing services to
      Customer and will be supported by proper invoices and vouchers in respect
      of all expenses for which reimbursement is claimed.

(b)   All payments under this Agreement shall be made in U.S. Dollars, and
      Customer shall have the right to withhold payments for any amounts under
      dispute by Customer, but shall pay any other amounts invoiced that are not
      in dispute. If such dispute is resolved in favor of Saville, Customer
      shall pay interest on such disputed amount from the date it originally
      became due until the date it is paid to Saville at a rate equal to the
      lesser of: (i) eighteen percent (18%) per annum; or (ii) the maximum
      lawful interest rite under applicable law.

8.    DURATION AND TERMINATION

8.1 This Agreement may be terminated forthwith by either Party on written notice
if the other Party is in significant breach of its obligations and fails to
remedy the breach within thirty (30) days of receipt of notice in writing
thereof. In the event that the terminating Party can demonstrate that such
breach has involved it in additional costs, then it shall have the right to
recover such costs from the breaching Party.

8.2 Either Party may terminate this Agreement forthwith on written notice if the
other Party shall become insolvent or bankrupt or make an arrangement with its
creditors or go into liquidation.


                                     22
<PAGE>   25

8.3 Upon termination of this Agreement, howsoever occasioned, Saville shall
forthwith deliver to Customer (without retaining copies of the same) all
correspondence, drawings, specifications, accounts documents and papers of any
description elating to affairs and business of Customer (or any subsidiary or
associated company) whether or not the same were prepared by Saville, were
supplied by Customer (or any subsidiary or associated company), and all other
property of Customer or any subsidiary or associated company (other than
property jointly owned of Saville or Customer) within its possession or under
its control.

8.4 Termination of this Agreement shall not prejudice any rights of either Party
which have arisen on or before the date of termination and shall not prejudice
the Software License Agreement or any rights of either Party thereunder.

9.    WARRANTY

9.1 Saville warrants and represents to Customer that it has full right and
authority to enter into this Agreement.

9.2 Saville warrants that the Software Developments and the Future Software
Developments will perform the facilities and functions set out in their
respective statements of work as of the date of acceptance, and shall continue
to provide such facilities and functions and shall be free from programming
errors for a period of ninety (90) days from the date of acceptance of such
Software Development or Future Software Development, as the case may be (the
"Warranty Period").

Notwithstanding anything contained in this Agreement to the contrary, Saville
shall not be liable for any correction of programming errors or non-conformity
of the Billing System and/or the Future Software Developments required because
of:

(a)   any changes made to the Billing System and/or the Future Software
      Developments which were not authorized by Saville nor carried out under
      the supervision and control of Saville; or

(b)   any computer program created by Customer or any third pasty retained by
      Customer, which computer program adversely affects the performance of the
      Billing System and/or the Future Software Developments; or

(c)   accident, neglect, misuse of the Billing System and/or the Future Software
      Developments by Customer.

During the Warranty Period, Saville shall, at its own cost, immediately correct
and remedy any Problem and any programming errors notified to it by Customer and
shall carry out modification to and/or correction of the Billing System and/or
any Future Software Developments, such that these will be able to provide the
facilities and functions set out in the applicable statement of work. If Saville
is unable, after reasonable best efforts, to correct any Problem with a Software
Development or Future Software Development under this warranty, Customer's sole
remedy shall be the refund of an amount not to exceed the actual payments
received by Saville for the hourly fees relating to such non-conforming Software
Development or Future Software Development. This shall constitute Customer's
exclusive remedy for any such Problem.


                                     23
<PAGE>   26

Notification by Customer under the terms of this Section shall include a listing
of output and such data as Saville may reasonably require in order to reproduce
the operating conditions in which the Problem, the programming error or
non-conformity was discovered. All work carried our by Saville under this
warranty will be chargeable to Customer at Saville's then-current hourly rate if
it is found that no Problem or programming error exists.

9.3 Saville warrants that the Software Developments and Future Software
Developments developed under this Agreement will be designed to be used prior
to, during, and after the calendar year 2000 A.D., and without human
intervention will correctly recognize, calculate, process, sequence, store and
transmit Date Data without error or interruption, including leap years, and
including errors or interruptions from functions which may involve Date Data
from more than one century. The term "Date Data" shall mean any data or input
which includes an indication of or reference to date and that is stored
information and internal to functionality. Date calculations involving either a
single century or multiple centuries will neither cause an abnormal ending nor
generate incorrect or unexpected results. When sorting by date, all records will
be sorted in accurate sequence and when the date is used as a key, records will
be read and written in accurate sequence. As used in the previous sentence,
accurate sequence means, by way of example, that records will be read, written,
and sorted in ascending order so that the year 1999 is before the year 2000. The
Software Developments and Future Software Developments will calculate, process,
and display leap year information according to the following algorithm; (i) a
leap year will have twenty-nine (29) days in the month of February; and (ii) a
leap year occurs in all years divisible by 400 and all years evenly divisible by
4 and not evenly divisible by 100. Saville, however, makes no representation or
warranty nor takes any responsibility for errors or omissions caused by third
party systems, devices, interfaces or software, or for errors or omissions
caused by functional or technical requirements specified by Customer.

9.4 THE WARRANTIES CONTAINED IN THIS AGREEMENT ARE IN LIEU OF ANY OTHER
WARRANTIES OR CONDITIONS, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, TITLE OR NON-INFRINGEMENT, AND THOSE ARISING BY STATUTE OR OTHERWISE IN
LAW OR FROM A COURSE OF DEALING OR USAGE OF TRADE.

10.   LIABILITY

10.1 Saville is liable for the Software Developments and the Future Software
Developments performed under this Agreement. HOWEVER, IN ANY CASE SAVILLE'S
ENTIRE LIABILITY UNDER ANY PROVISION OF THIS AGREEMENT WITH RESPECT TO A
SOFTWARE DEVELOPMENT OR A FUTURE SOFTWARE DEVELOPMENT SHALL BE LIMITED TO THE
AGGREGATE AMOUNT OF HOURLY FEES (EXCLUDING REIMBURSED EXPENSES) PAID TO SAVILLE
FOR SUCH SOFTWARE DEVELOPMENT OR FUTURE SOFTWARE DEVELOPMENT, AS THE CASE MAY
BE, IN ACCORDANCE WITH THIS AGREEMENT.

10.2 In no event shall Saville be liable fur indirect damages (even if Saville
have been advised of the possibility of such loss) including, but not limited
to, lost business revenue, lost data, failure to realize expected profits or
savings or other commercial or economic loss of any kind.


                                     24
<PAGE>   27

11.   GENERAL

11.1 Paragraph 2(c) (assignments and sublicenses) and 8(b) and (c)
(confidentiality) of the Software License Agreement shall also apply to this
Agreement.

11.2 This Agreement shall be governed by and construed under the laws of the
Commonwealth of Massachusetts, exclusive of its choice of law rules. This is an
integrated Agreement. It contains the full understanding of the parties and
supersedes all other understandings, agreements, representations, or
correspondence, written or oral, regarding its subject matter. This Agreement
may be amended, modified, or waived only by another writing signed by the
authorized representatives of both parties. Headings are for convenience; they
shall not be used to construe this Agreement. Any action against Saville under
this Agreement or related to its subject matter must be brought within one year
after the cause of action accrues.

11.3 All notices shall be in writing and shall be sent by personal delivery, by
a reputable nationwide overnight courier service prepaid, or by facsimile with
confirmed answerback. Notices to Customer shall be sent to Customer's billing
address shown above, attention Senior Vice President Business Development, with
a copy to General Counsel at the same address. Notices to Saville shall be sent
to the attention of the President, Saville Systems, One Van de Graaff Drive,
Burlington, Massachusetts 01803. Notices shall be effective upon delivery in the
case of personal delivery, on receipt in the case of facsimile, and one day
after it is sent via overnight couriers.

11.4 All disputes arising out of or relating to this Agreement shall be finally
settled by arbitration conducted in Boston, Massachusetts, U.S.A. under the
rules of commercial arbitration of the American Arbitration Association
("Rules"). Both parties shall bear equally the cost of the arbitration
(exclusive of legal fees and expenses, all of which each party shall bear
separately). All decisions of the arbitrator(s) shall be final and binding on
both parties and enforceable in any court of competent jurisdiction.
Notwithstanding the foregoing, in the event of breach by a party of its
obligations hereunder, the non-breaching party may seek injunctive or other
equitable relief in any court of competent jurisdiction.

11.5 Saville employees shall be deemed not to be at any time employees or
servants of Customer and Saville is and shall remain an independent contractor
for all purposes. Unless otherwise agreed to in a written agreement, Saville
does not undertake to perform any obligation of Customer, whether regulatory or
contractual, or to assume any responsibility for Customer's business or
operations.

11.6 Nothing in this Agreement shall be construed to constitute or create a
joint venture, partnership, or formal business organization of any kind and the
rights and obligations of each Party shall be only those expressly set forth
herein. Neither Party shall have authority to bind the other Party, and neither
Party assumes any liabilities of the other Party.

11.7 Neither Party shall be liable for any delay or failure to perform its
obligations, other than payment obligations, due to any case of "force majeure".

11.8 Each Party agrees not to hire their respective staff members assigned to
perform the services listed in this Agreement, without the prior and written
agreement of the other Party,


                                     25
<PAGE>   28

even if the request for hiring is initiated by the staff member her/himself.
This non-hiring covenant is valid for the period of the Project increased by a
period of one (1) year.

11.9 The Parties have requested that this Agreement and all communications and
documents relating hereto be expressed in the English language.

IN WITNESS WHEREOF Customer and Saville have executed this Software Maintenance
Agreement under seal.

BIRCH TELECOM, INC.                  Accepted at Saville Systems Inc.


By: /s/ David W. Vranicar            By:
    -------------------------            ----------------------------

Name: David W. Vranicar              Name: John Kiley

Title: Senior Vice President         Title: Senior Vice President

Date: June 9, 1998                   Date:


                                     26
<PAGE>   29

even if the request for hiring is initiated by the staff member her/himself.
This non-hiring covenant is valid for the period of the Project increased by a
period of one (1) year.

11.9 The Parties have requested that this Agreement and all communications and
documents relating hereto be expressed in the English language.

IN WITNESS WHEREOF Customer and Saville have executed this Software Maintenance
Agreement under seal.

BIRCH TELECOM, INC.                  Accepted at Saville Systems Inc.


By:                                  By: /s/ John Kiley
    -------------------------            ----------------------------

Name: David W. Vranicar              Name: John Kiley

Title: Senior Vice President         Title: Senior Vice President

Date:                                Date:


                                     26
<PAGE>   30

                          APPENDIX 1: STATEMENT OF WORK

Specification Study:      **** plus travel and living expenses (payment terms
                          are 30 days from completion of Study)

The Specification Study will enable our companies to fully define the BIRCH
TELECOM requirements and Saville CBP AS/400 convergent billing solution. This
on-site Study and Operational Review will provide a report summarizing the
findings and recommendations regarding the functional scope of the project and
the standard capabilities of the System. This review will clearly define the
deliverables and potential modifications and/or customizations related to the
scope of the project. This Study will establish a clear definition of the
project to include the cost and time frames for the delivery of the component
pieces.

The Specification Study will result in a Statement of Work, complete with the
required hardware/software architecture, and a firm investment proposal for the
BIRCH TELECOM solution. It is anticipated that the Study would be completed
within one month from commencement. The start date is anticipated to be June 8,
1998. As discussed, we will require active participation from BIRCH TELECOM
within the period during which we are completing the Study.

The parties hereby agree that the Project Statement attached to this Agreement
as Appendix shall be the basis for the Statement of Work and that the not to
exceed price of **** set forth in Section 7.1 of this Agreement applies to the
functionality set forth in such Project Statement.


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<PAGE>   31

                        APPENDIX 2: CURRENT HOURLY RATES

        TITLE DESCRIPTION           HOURLY          DAILY

Executive                            ****           ****

Industry Consultant                  ****           ****

Consulting Manager                   ****           ****

Consultant - Project Leader          ****           ****

Consultant - Level IV                ****           ****

Consultant - Level III               ****           ****

Consultant - Level II                ****           ****

Consultant - Level I                 ****           ****

Project Administrator                ****           ****


Daily rates based on an 8 hour day


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