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Interconnection Agreement-Kansas - Southwestern Bell Telephone Co. and Birch Telecom of Kansas inc.

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                        INTERCONNECTION AGREEMENT-KANSAS

                                     between

                       Southwestern Bell Telephone Company

                                       and

                          BIRCH TELECOM OF KANSAS, Inc.

<PAGE>

                        INTERCONNECTION AGREEMENT-KANSAS

                                     between

                       Southwestern Bell Telephone Company

                                       and

                          Birch Telecom of Kansas, Inc.

<PAGE>

                                TABLE OF CONTENTS

                        INTERCONNECTION AGREEMENT-KANSAS

                                     BETWEEN

                       SOUTHWESTERN BELL TELEPHONE COMPANY

                                       AND

                          BIRCH TELECOM OF KANSAS, INC.


                                                                           
1.       INTRODUCTION..........................................................1
2.       EFFECTIVE DATE........................................................2
3.       INTERVENING LAW.......................................................2
4.       TERM OF AGREEMENT.....................................................3
5.       ASSIGNMENT............................................................4
6.       CONFIDENTIALITY AND PROPRIETARY INFORMATION...........................4
7.       LIABILITY AND INDEMNITY...............................................6
8.       PAYMENT OF RATES AND CHARGES.........................................12
9.       DISPUTE RESOLUTION...................................................12
10.      TERMINATION OF SERVICE TO CLEC.......................................15
11.      NOTICES..............................................................16
12.      TAXES................................................................17
13.      FORCE MAJEURE........................................................18
14.      PUBLICITY............................................................19
15.      NETWORK MAINTENANCE AND MANAGEMENT...................................19
16.      LAW ENFORCEMENT AND CIVIL PROCESS....................................20
17.      CHANGES IN SUBSCRIBER CARRIER SELECTION..............................20
18.      AMENDMENTS OR WAIVERS................................................21
19.      AUTHORITY............................................................22
20.      BINDING EFFECT.......................................................22
21.      CONSENT..............................................................22
22.      EXPENSES.............................................................22
23.      HEADINGS.............................................................22
24.      RELATIONSHIP OF PARTIES..............................................23
25.      CONFLICT OF INTEREST.................................................23
26.      MULTIPLE COUNTERPARTS................................................23
27.      THIRD PARTY BENEFICIARIES............................................23
28.      REGULATORY APPROVAL..................................................23
29.      TRADEMARKS AND TRADE NAMES...........................................23
30.      REGULATORY AUTHORITY.................................................24
31.      VERIFICATION REVIEWS.................................................24
32.      COMPLETE TERMS.......................................................26
33.      COOPERATION ON PREVENTING END USER FRAUD.............................26
34.      NOTICE OF NETWORK CHANGES............................................26
35.      GOOD FAITH PERFORMANCE...............................................27
36.      RESPONSIBILITY OF EACH PARTY.........................................27
37.      TRANSMISSION OF TRAFFIC TO THIRD PARTIES.............................27
38.      GOVERNMENTAL COMPLIANCE..............................................27

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                                                    General Terms and Conditions
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39.      RESPONSIBILITY FOR ENVIRONMENTAL CONTAMINATION.......................28
40.      SUBCONTRACTING.......................................................30
41.      REFERENCED DOCUMENTS.................................................30
42.      SEVERABILITY.........................................................30
43.      SURVIVAL OF OBLIGATIONS..............................................31
44.      GOVERNING LAW........................................................31
45.      PERFORMANCE CRITERIA.................................................31
46       OTHER OBLIGATIONS OF CLEC............................................31
47.      DIALING PARITY; LOCAL NUMBER PORTABILITY.............................31
48.      BRANDING.............................................................32
49.      CUSTOMER INQUIRIES...................................................32
50.      DISCLAIMER OF WARRANTIES.............................................32
51.      NO WAIVER............................................................32
52.      EFFECT OF OTHER AGREEMENTS...........................................32
53.      DEFINITIONS..........................................................33
54.      RESALE...............................................................33
55.      UNBUNDLED NETWORK ELEMENTS...........................................33
56.      ORDERING AND PROVISIONING, MAINTENANCE, CONNECTIVITY BILLING
         AND REORDERING, AND PROVISION OF CUSTOMER USAGE DATA.................33
57.      NETWORK INTERCONNECTION ARCHITECTURE.................................34
58.      COMPENSATION FOR DELIVERY OF TRAFFIC.................................34
59.      ANCILLARY FUNCTIONS..................................................34
60.      RETENTION OF APPELLATE RIGHTS........................................34
61.      INSURANCE............................................................34
62.      INTENTIONALLY LEFT BLANK.............................................34
63.      OTHER REQUIREMENT AND ATTACHMENTS....................................35

         ATTACHMENTS..........................................................35


         RESALE

         Attachment 1:  Resale
               Appendix Services/Pricing

                      Exhibit A:  SWBT's Telecommunications Services Available
                                  for Resale
                      Exhibit B:  SWBT's Other Services Available for Resale

               Appendix Customized Routing-Resale
               Appendix DA-Resale
               Appendix OS-Resale
               Appendix White Pages (WP)-Resale

         Attachment 2:  Ordering and Provisioning-Resale
         Attachment 3:  Maintenance-Resale
         Attachment 4:  Connectivity Billing-Resale
         Attachment 5:  Provision of Customer Usage Data-Resale

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         UNBUNDLED NETWORK ELEMENTS

         Attachment 6:  Unbundled Network Elements (UNE)
               Appendix Pricing-UNE
               Appendix Pricing-UNE Schedule of Prices

         Attachment 7:  Ordering and Provisioning-UNE
         Attachment 8:  Maintenance-UNE
         Attachment 9:  Billing-Other
         Attachment 10:  Provision of Customer Usage Data-UNE

         NETWORK INTERCONNECTION ARCHITECTURE AND COMPENSATION

         Attachment 11:  Network Interconnection Architecture
               Appendix Interconnection Trunking Requirement (ITR)
               Appendix Network Interconnection Methods (NIM)
               Appendix SS7 Interconnection
         Attachment 12:  Compensation
               Appendix Cellular
               Appendix FGA

         ANCILLARY FUNCTIONS

         Attachment 13:  Ancillary Functions
               Appendix Collocation
               Appendix Poles, Conduit, ROW

         OTHER REQUIREMENTS

         Attachment 14:  Interim Number Portability
               Appendix Location Routing Number-Permanent Number Portability
         Attachment 15:  E911
         Attachment 16:  Network Security and Law Enforcement
         Attachment 17:  Performance Measurements
         Attachment 18:  Mutual Exchange of Directory Listing Information
         Attachment 19:  White Pages-Other (WP-O)
         Attachment 20:  Clearinghouse
         Attachment 21:  Numbering
         Attachment 22:  DA-Facilities Based
         Attachment 23:  OS-Facilities Based
         Attachment 24:  Recording-Facilities Based
         Attachment 25:  DSL

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                       INTERCONNECTION AGREEMENT - KANSAS

         This Interconnection Agreement - Kansas (Agreement) is between Birch
Telecom of Kansas, Inc. (CLEC) a Delaware Corporation, having an office at 1004
Baltimore Avenue, Suite 900, Kansas City, Missouri 64105, and Southwestern Bell
Telephone Company (SWBT), a Missouri corporation, having an office at 1010 Pine
Street, St. Louis, Missouri 63101, (collectively the Parties).

         WHEREAS, pursuant to Section 252(i) of the Federal Telecommunications
Act of 1996, CLEC and SWBT have entered into an agreement on the same terms and
conditions contained in the SWBT/AT&T Communications of the Southwest, Inc.
Agreement for the State of Kansas ("the underlying Agreement.").

         WHEREAS, pursuant to the Telecommunications Act of 1996 (the Act), the
Parties wish to establish terms for the resale of SWBT services and for the
provision by SWBT of Interconnection, unbundled Network Elements, and Ancillary
Functions as designated in the Attachments hereto.

         NOW, THEREFORE, in consideration of the premises and the mutual
covenants of this Agreement CLEC and SWBT hereby agree as follows:

1.0      INTRODUCTION

1.1      This Agreement sets forth the terms, conditions and prices under which
         SWBT agrees to provide (a) services for resale (hereinafter referred to
         as Resale services), (b) unbundled Network Elements, or combinations of
         such Network Elements (Combinations), ( c ) Ancillary Functions and (d)
         Interconnection to CLEC This Agreement also sets forth the terms and
         conditions for the interconnection of Birch Telecom of Kansas Inc.'s
         network to SWBT's network and reciprocal compensation for the transport
         and termination of telecommunications.

1.2      The Network Elements, Combinations or Resale services provided pursuant
         to this Agreement may be connected in any lawful manner to other
         Network Elements, Combinations or Resale services provided by SWBT or
         to any network components provided by CLEC itself or by any other
         vendor. Subject to the requirements of this Agreement, CLEC may at any
         time add, delete, relocate or modify the Resale services, Network
         Elements or Combinations purchased hereunder.

1.3      During the term of this Agreement, SWBT will not discontinue, as to
         CLEC, any Network Element, Combination, or Ancillary Functions offered
         to CLEC hereunder. During the term of this Agreement, SWBT will not
         discontinue any Resale services or features offered to CLEC hereunder
         except as provided in Attachment 1: Resale hereto

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         and subject to the provisions of Section 30.2 of the General Terms and
         Conditions of this Agreement. This Section is not intended to impair
         SWBT's ability to make changes in its Network, so long as such changes
         are consistent with the Act and do not result in the discontinuance of
         the offerings of Network Elements, Combinations, or Ancillary
         Functions made by SWBT to CLEC as set forth in and during the term of
         this Agreement.

1.4      SWBT may fulfill the requirements imposed upon it by this Agreement by
         itself or may cause its Affiliates to take such actions to fulfill the
         responsibilities.

1.5      This Agreement includes and incorporates herein the Attachments listed
         in Section 62 of this Agreement, and all accompanying Appendices,
         Addenda and Exhibits.

1.6      Unless otherwise provided in the Agreement, SWBT will perform all of
         its obligations concerning its offering of Resale services and
         unbundled Network Elements under this Agreement throughout the entire
         service area where SWBT is the incumbent local exchange carrier;
         provided, that SWBT's obligations to provide Ancillary Functions or to
         meet other requirements of the Act covered by this Agreement are not
         necessarily limited to such service areas.

1.7      This Agreement incorporates a number of interconnection arrangements,
         UNE arrangements, and other provisions that were not voluntarily
         negotiated by SWBT, but instead resulted from determinations made in
         arbitrations under section 252 of the Act or from other requirements of
         regulatory agencies or state law. Such arrangements and provisions of
         this Agreement shall not be available to other parties or beyond the
         scope of this contract, except as may be required by law.

2.0      EFFECTIVE DATE

2.1      This Agreement  becomes  effective (1) when executed by each Party and
         approved by the State  Commission;  or (2) by operation of law
         pursuant to the Order of the State Commission, whichever is earlier.

3.0      INTERVENING LAW

3.1      This Agreement is entered into as a result of both private negotiation
         between the Parties and arbitration by the State Commission, acting
         pursuant to FTA96. If the actions of Kansas or federal legislative
         bodies, courts, or regulatory agencies of competent jurisdiction
         invalidate, modify, or stay the enforcement of laws or regulations that
         were the basis for a provision of the contract required by the
         Arbitration Award approved by the State Commission, the affected
         provision will be invalidated, modified, or stayed as required by the
         legislative body, court, or regulatory agency. In such event, the
         Parties will expend diligent efforts to arrive at an agreement
         respecting the modifications to the Agreement required. If negotiations
         fail, disputes between the Parties concerning the interpretation of the
         actions required or provisions affected by such governmental actions

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         will be submitted to the Kansas Corporation Commission for resolution,
         pursuant to FTA96, Sec. 252(b), (c) and (d), provided that either party
         may request expedited resolution by the Kansas Corporation Commission
         with both parties retaining all rights of appeal.

3.2      In the event a court or regulatory agency of competent jurisdiction
         should determine that modifications of this Agreement are required to
         bring the services being provided hereunder into compliance with the
         Act, the affected Party will promptly give the other Party written
         notice of the modifications deemed required. Upon delivery of such
         notice, the Parties will expend diligent efforts to arrive at an
         agreement respecting such modifications required, and if the Parties
         are unable to arrive at such agreement within sixty (60) days after
         such notice, either Party may invoke the Dispute Resolution process set
         forth in Section 9.4.2 of this Agreement.

3.3      Without limiting the foregoing, the Parties further agree that, should
         the United States Court of Appeals for the Eighth Circuit issue a
         decision on remand from the Supreme Court's decision in IOWA UTILITIES
         BOARD V. FCC, 142 L.ED. 2d 134 (U.S. 1999), that an ILEC cannot be
         required under FTA96 to combine network elements for a CLEC that are
         not already combined in the ILEC's network, then on the date such
         decision becomes final and not subject to further judicial review,
         including any subsequent review of such decision by the Supreme Court,
         SWBT shall no longer be required to combine network elements on behalf
         of CLEC that are not already combined in SWBT's network,
         notwithstanding anything in this Agreement to the contrary.

4.0      TERM OF AGREEMENT

4.1      This Agreement will become effective as of the Effective Date stated
         above, and will expire on October 29, 2001 plus two one year
         extensions, unless written Notice of Non Renewal and Request for
         Negotiation (Non Renewal Notice) is provided by either Party in
         accordance with the provisions of this Section. Any such Non Renewal
         Notice must be provided not later than 180 days before the day this
         Agreement would otherwise renew for an additional year. The noticing
         Party will delineate the items desired to be negotiated. Not later than
         30 days from receipt of said notice, the receiving Party will notify
         the sending Party of additional items desired to be negotiated, if any.
         Not later than 135 days from the receipt of the Non Renewal Notice,
         both parties will commence negotiations.

4.2      The same terms, conditions, and prices will continue in effect, on a
         month-to-month basis as were in effect at the end of the latest term,
         or renewal, so long as negotiations are continuing without impasse and
         then until resolution pursuant to this Section. The Parties agree to
         resolve any impasse by submission of the disputed matters to the State
         Commission for arbitration. Should the State Commission decline
         jurisdiction, the Parties will resort to a commercial provider of
         arbitration services.

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4.3      Upon termination of this Agreement, CLEC's liability will be limited to
         payment of the amounts due for Network Elements, Combinations,
         Ancillary Functions and Resale Services provided up to and including
         the date of termination and thereafter as reasonably requested by CLEC
         to prevent service interruption, but not to exceed one (1) year. The
         Network Elements, Combinations, Ancillary Functions and Resale services
         provided hereunder are vital to CLEC and must be continued without
         interruption. When CLEC provides or retains another vendor to provide
         such comparable Network Elements, Combinations, Ancillary Functions or
         Resale services, SWBT and CLEC agree to co-operate in an orderly and
         efficient transition to CLEC or another vendor. SWBT and CLEC further
         agree to coordinate the orderly transition to CLEC or another vendor
         such that the level and quality of the Network Elements, Combinations,
         Ancillary Functions and Resale Services is not degraded and each Party
         will exercise its best efforts to effect an orderly and efficient
         transition.

5.0      ASSIGNMENT

5.1      Neither Party hereto may assign or otherwise transfer its rights or
         obligations under this Agreement, except with the prior written consent
         of the other Party hereto, which consent will not be unreasonably
         withheld; provided, that SWBT may assign its rights and delegate its
         benefits and delegate its duties and obligations under this Agreement
         without the consent of CLEC to a 100 per cent owned affiliate of SWBT,
         provided the performance of any such assignee is guaranteed by the
         assignor. Nothing in this Section is intended to impair the right of
         either Party to utilize subcontractors.

5.2      Each Party will notify the other in  writing not less than 60 days in
         advance of anticipated assignment.

6.0     CONFIDENTIALITY AND PROPRIETARY INFORMATION.

6.1      For the purposes of this Agreement, "Confidential Information" means
         confidential or proprietary technical or business information given by
         the Discloser to the Recipient. All information which is disclosed by
         one party to the other in connection with this Agreement, during
         negotiations (also see the Confidentiality Agreement between the
         Parties dated April 27, 2000) and the term of this Agreement, will
         automatically be deemed proprietary to the Discloser and subject to
         this Agreement, unless otherwise confirmed in writing by the Discloser.
         In addition, by way of example and not limitation, all orders for
         Resale Services, Network Elements or Combinations placed by CLEC
         pursuant to this Agreement, and information that would constitute
         Customer Proprietary Network Information of CLEC's customers pursuant
         to the Act and the rules and regulations of the Federal Communications
         Commission (FCC), and Recorded Usage Data as described in Attachments 5
         and 10 concerning Recorded Usage Data, whether disclosed by CLEC to
         SWBT or otherwise acquired by SWBT in the course of the performance of
         this Agreement, will be deemed Confidential Information of CLEC for all
         purposes under this Agreement.

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6.2      For a period of five (5) years from the receipt of Confidential
         Information from the Discloser, except as otherwise specified in this
         Agreement, the Recipient agrees (a) to use it only for the purpose of
         performing under this Agreement, (b) to hold it in confidence and
         disclose it to no one other than its employees having a need to know
         for the purpose of performing under this Agreement, and (c) to
         safeguard it from unauthorized use or disclosure using at least the
         same degree of care with which the Recipient safeguards its own
         Confidential Information. If the Recipient wishes to disclose the
         Discloser's Confidential Information to a third-party agent or
         consultant, such disclosure must be agreed to in writing by the
         Discloser, and the agent or consultant must have executed a written
         agreement of nondisclosure and nonuse comparable in scope to the terms
         of this Section.

6.3      The Recipient may make copies of Confidential Information only as
         reasonably necessary to perform its obligations under this Agreement.
         All such copies will be subject to the same restrictions and
         protections as the original and will bear the same copyright and
         proprietary rights notices as are contained on the original.

6.4      The Recipient agrees to return all Confidential Information in tangible
         form received from the Discloser, including any copies made by the
         Recipient within thirty (30) days after a written request is delivered
         to the Recipient, or to destroy all such Confidential Information if
         directed to do so by Discloser except for Confidential Information that
         the Recipient reasonably requires to perform its obligations under this
         Agreement. If either Party loses or makes an unauthorized disclosure of
         the other Party's Confidential Information, it will notify such other
         party immediately and use reasonable efforts to retrieve the lost or
         wrongfully disclosed information.

6.5      The Recipient will have no obligation to safeguard Confidential
         Information: (a) which was in the possession of the Recipient free of
         restriction prior to its receipt from the Discloser; (b) after it
         becomes publicly known or available through no breach of this Agreement
         by the Recipient; (c) after it is rightfully acquired by the Recipient
         free of restrictions on its disclosure; or (d) after it is
         independently developed by personnel of the Recipient to whom the
         Discloser's Confidential Information had not been previously disclosed.
         In addition, either Party will have the right to disclose Confidential
         Information to any mediator, arbitrator, state, or federal regulatory
         body, or a court in the conduct of any mediation, arbitration or
         approval of this Agreement, so long as, in the absence of an applicable
         protective order, the Discloser has been promptly notified by the
         Recipient and so long as the Recipient undertakes all lawful measures
         to avoid disclosing such information until Discloser has had reasonable
         time to negotiate a protective order with any such mediator,
         arbitrator, state or regulatory body or a court, and complies with any
         protective order that covers the Confidential Information.

6.6      The Parties acknowledge that an individual end user may simultaneously
         seek to become or be a customer of both Parties. Nothing in this
         Agreement is intended to limit the

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         ability of either Party to use customer specific information lawfully
         obtained from end users or sources other than the Disclosing Party.

6.7      Each Party's obligations to safeguard Confidential Information
         disclosed prior to expiration or termination of this Agreement will
         survive such expiration or termination.

6.8      Except as otherwise expressly provided elsewhere in this Agreement, no
         license is hereby granted under any patent, trademark, or copyright,
         nor is any such license implied solely by virtue of the disclosure of
         any Confidential Information.

6.9      Each Party agrees that the Discloser may be irreparably injured by a
         disclosure in breach of this Agreement by the Recipient or its
         representatives and the Discloser will be entitled to seek equitable
         relief, including injunctive relief and specific performance, in the
         event of any breach or threatened breach of the confidentiality
         provisions of this Agreement. Such remedies will not be deemed to be
         the exclusive remedies for a breach of this Agreement, but will be in
         addition to all other remedies available at law or in equity.

7.0      LIABILITY AND INDEMNIFICATION

7.1      LIMITATION OF LIABILITIES

7.1.1    The Parties' liability to each other during any Contract Year resulting
         from any and all causes, other than as specified below in Sections
         7.3.1, 7.3.2, 7.6.2 and 7.6.9, and other than for willful or
         intentional misconduct (including gross negligence) will not exceed the
         total of any amounts due and owing to CLEC pursuant to Section 45
         (Performance Criteria) and the Attachment referenced in that Section,
         plus the amounts charged to CLEC by SWBT under this Agreement during
         the Contract Year in which such cause accrues or arises. For purposes
         of this Section, the first Contract Year commences on the first day
         this Agreement becomes effective and each subsequent Contract Year
         commences on the day following that anniversary date.

7.1.2    Except as otherwise provided in specific appendices, in the case of any
         loss alleged or made by a third party arising under the negligence or
         willful misconduct or omission of both Parties, each Party shall bear,
         and its obligation under this section shall be limited to, that portion
         (as mutually agreed to by the Parties) of the resulting expense caused
         by its own negligence or willful misconduct or omission or that of its
         agents, servants, contractors, or others acting in aid or concert with
         it.

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7.2      NO CONSEQUENTIAL DAMAGES

7.2.1    NEITHER CLEC NOR SWBT WILL BE LIABLE TO THE OTHER PARTY FOR ANY
         INDIRECT, INCIDENTAL CONSEQUENTIAL, RELIANCE, OR SPECIAL DAMAGES
         SUFFERED BY SUCH OTHER PARTIES (INCLUDING WITHOUT LIMITATION DAMAGES
         FOR HARM TO BUSINESS, LOST REVENUES, LOST SAVINGS, OR LOST PROFITS
         SUFFERED BY SUCH OTHER PARTIES), REGARDLESS OF THE FORM OF ACTION,
         WHETHER IN CONTRACT, WARRANTY, STRICT LIABILITY, OR TORT, INCLUDING
         WITHOUT LIMITATION NEGLIGENCE OF ANY KIND WHETHER ACTIVE OR PASSIVE,
         AND REGARDLESS OF WHETHER THE PARTIES KNEW OF THE POSSIBILITY THAT
         SUCH DAMAGES COULD RESULT. EACH PARTY HEREBY RELEASES THE OTHER PARTY
         (AND SUCH OTHER PARTY'S SUBSIDIARIES AND AFFILIATES, AND THEIR
         RESPECTIVE OFFICERS, DIRECTORS, EMPLOYEES, AND AGENTS) FROM ANY SUCH
         CLAIM. NOTHING CONTAINED IN THIS SECTION WILL LIMIT SWBT'S OR CLEC'S
         LIABILITY TO THE OTHER FOR (i) WILLFUL OR INTENTIONAL MISCONDUCT
         (INCLUDING GROSS NEGLIGENCE); (ii) BODILY INJURY, DEATH, OR DAMAGE TO
         TANGIBLE REAL OR TANGIBLE PERSONAL PROPERTY PROXIMATELY CAUSED BY SWBT
         OR CLEC'S NEGLIGENT ACT OR OMISSION OR THAT OF THEIR RESPECTIVE
         AGENTS, SUBCONTRACTORS OR EMPLOYEES, NOR WILL ANYTHING CONTAINED IN
         THIS SECTION LIMIT THE PARTIES INDEMNIFICATION OBLIGATIONS, AS
         SPECIFIED BELOW.

7.3      OBLIGATION TO INDEMNIFY

7.3.1    Each Party will and hereby agrees to defend at the other's request,
         indemnify, and hold harmless the other Party and each of its officers,
         directors, employees, and agents (each, an Indemnitee) against and in
         respect of any loss, debt, liability, damage, obligation, claim,
         demand, judgment, or settlement of any nature or kind, known or
         unknown, liquidated or unliquidated, including without limitation all
         reasonable costs and expenses incurred (legal, account or otherwise)
         (collectively, Damages) arising out of, resulting from, or based upon
         any pending or threatened claim, action, proceeding or suit by any
         third party (a Claim) (i) alleging any omissions, breach of any
         representation, warranty, or covenant made by such indemnifying Party
         (the Indemnifying Party) in this Agreement, (ii) based upon injuries
         or damages to any person or property or the environment arising out of
         or in connection with this Agreement that are the result of the
         Indemnifying Party's actions, breach of Applicable Law, or the
         actions, omissions or status of its employees, agents, and
         subcontractors.

7.3.1.1  Intentionally Left Blank.

7.3.2    Each Party will and hereby agrees to defend at the other's request,
         indemnify, and hold harmless the other Party and each of its officers,
         directors, employees, and agents (each,

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         an "Indemnitee") against and in respect of any loss, debt, liability,
         damage, obligation, claim, demand, judgment, or settlement of any
         nature or kind, known or unknown, liquidated or unliquidated,
         including without limitation all reasonable costs and expenses
         incurred (legal, account or otherwise) arising out of, resulting from,
         or based upon any pending or threatened claim, action, proceeding or
         suit by any third party for actual infringement of any patent,
         copyright, trademark, service mark, trade name, trade dress, trade
         secret or any other intellectual property right now known or later
         developed to the extent that such claim or action arises from the
         actions of the respective Parties, or failure to act, as required
         pursuant to this Agreement or applicable Commission Orders.

7.3.3    SWBT makes no warranties, express or implied, concerning CLEC's (or any
         third party's) rights with respect to intellectual property (including
         without limitation, patent, copyright and trade secret rights) or
         contract rights associated with CLEC's rights to interconnect with
         SWBT's network and to Unbundled Network Elements and/or combine SWBT's
         network elements (including combining with CLEC's Network Elements)
         such interconnection or unbundling and/or combining of Elements
         (including combining with components of CLEC's network) in SWBT's
         network. Section 7 applies solely to this Agreement. Nothing in this
         Section will be deemed to supersede or replace any other agreements, if
         any, between the Parties with respect to CLEC's intellectual property
         or contract rights.

7.4      OBLIGATION TO DEFEND; NOTICE; COOPERATION

7.4.1    Whenever a Claim will arise for indemnification under this Section,
         the relevant Indemnitee, as appropriate, will promptly notify the
         Indemnifying party and request the Indemnifying Party to defend the
         same. Failure to so notify the Indemnifying Party will not relieve the
         Indemnifying Party of any liability that the Indemnifying Party might
         have, except to the extent that such failure prejudices the
         Indemnifying Party's ability to defend such Claim. The Indemnifying
         Party will have the right to defend against such liability or
         assertion in which event the Indemnifying Party will give written
         notice to the Indemnitee of acceptance of the defense of such Claim
         and the identity of counsel selected by the Indemnifying Party. Except
         as set forth below, such notice to the relevant Indemnitee will give
         the Indemnifying Party full authority to defend, adjust, compromise,
         or settle such Claim with respect to which such notice will have been
         given, except to the extent that any compromise or settlement might
         prejudice the Intellectual Property Rights of the relevant
         Indemnities. The Indemnifying Party will consult with the relevant
         Indemnitee prior to any compromise or settlement that would affect the
         Intellectual Property Rights or other rights of any Indemnitee, and
         the relevant Indemnitee will have the right to refuse such compromise
         or settlement and, at the refusing Party's or refusing Party's cost,
         to take over such defense, provided that in such event the
         Indemnifying Party will not be responsible for, nor will it be
         obligated to indemnify the relevant Indemnitee against any cost or
         liability in excess of such refused compromise or settlement. With
         respect to any defense accepted by the Indemnifying Party, the
         relevant Indemnitee will be entitled to participate with the
         Indemnifying Party in such defense if the Claim requests equitable

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         relief or other relief that could affect the rights of the Indemnitee
         and also will be entitled to employ separate counsel for such defense
         at such Indemnitee's expense. In the event the Indemnifying Party does
         not accept the defense of any indemnified Claim as provided above, the
         relevant Indemnitee will have the right to employ counsel for such
         defense at the expense of the Indemnifying Party. Each Party agrees to
         cooperate and to cause its employees and agents to cooperate with the
         other Party in the defense of any such Claim.

7.5      OSHA STATEMENT

7.5.1    CLEC, in recognition of SWBT's status as an employer, agrees to abide
         by and to undertake the duty of compliance on behalf of SWBT with all
         federal, state and local laws, safety and health regulations relating
         to CLEC's activities concerning Collocated Space, and to indemnify and
         hold SWBT harmless for any judgments, citations, fines, or other
         penalties which are assessed against SWBT as the result solely of
         CLEC's failure to comply with any of the foregoing. SWBT, in its status
         as an employer, will comply with all federal, state and local laws,
         safety and health standards and regulations with respect to all other
         portions of the Premises, and agrees to indemnify and hold CLEC
         harmless for any judgments, citations, fines or other penalties which
         are assessed against CLEC as a result solely of SWBT's failure to
         comply with any of the foregoing.

7.6      ALLOCATION OF RISKS ASSOCIATED WITH OUTSIDE PLANT OPERATIONS

7.6.1    APPLICATION. Sections 7.6-7.6.12 apply to the allocation of risks
         associated with the outside plant operations described in Appendix
         Poles. The Liability and Indemnification provisions of Sections
         7.1-7.5.1 above shall also apply to such allocation of risks except as
         expressly provided to the contrary in this Section 7.6. Further, in the
         event of an ambiguity or conflict between the provisions of
         Sections7.6.1-7.6.12 and the provisions of Sections 7.1-7.5.1, the
         provisions of Sections 7.6.1-7.6.12 shall govern.

7.6.2    WORKPLACE INJURIES. Except as expressly provided in this Agreement to
         the contrary, or except as otherwise prohibited by Kansas law, each
         party shall indemnify, on request defend, and hold the other party
         harmless from any and all suits, claims, demands, losses, damages,
         liabilities, fines, penalties, or expenses of every kind and
         character, on account of or in connection with any injury, loss, or
         damage suffered by any person, which arises out of or in connection
         with the personal injury, sickness, disease, or death of any employee
         of the indemnifying party (or other person acting on the indemnifying
         party's behalf) if such injury, sickness, disease, or death results,
         from any occurrence or condition on, within, or in the vicinity of
         SWBT's poles, ducts, conduits, and rights-of-way that is the result of
         the indemnifying party's actions, breach of Applicable Law, or the
         actions, omissions or status of its employees, agents, and
         subcontractors; provided, however, that CLEC's indemnification duties
         under this section shall arise only if the person injured, sick,
         diseased or dead is present at such site in connection with the
         performance or anticipated performance of any act required or
         permitted to be performed by CLEC or by

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         persons acting on CLEC's behalf pursuant to this Agreement.
         Indemnities provided by this section shall be subject to the
         exclusions set forth in Section 7.6.12.

7.6.3    Intentionally Left Blank

7.6.4    Intentionally left blank.

7.6.4.1  Intentionally left blank.

7.6.5    Intentionally left blank.

7.6.6    ASSERTION OF LIMITATION OF LIABILITY DEFENSES. Each party shall assert
         the limitations of liability provisions of any applicable tariff or
         contract in any case involving injury, loss, or damage to any customer
         of such party for which the other party is not exempt from
         indemnification liabilities to the indemnified party under this
         Agreement.

7.6.7    Intentionally left blank.

7.6.8    LIABILITY FOR ACTS OF THIRD PARTIES OR ACTS OF GOD. By affording CLEC
         access to poles, ducts, conduits, and rights-of-way owned or
         controlled by SWBT, SWBT does not warrant, guarantee, or insure the
         uninterrupted use of such facilities by CLEC. Except as specifically
         provided in Section 7.6.12 of this Agreement, CLEC assumes all risks
         of injury, loss, or damage (and the consequences of any such injury,
         loss, or damage) to CLEC's facilities attached to SWBT's poles or
         placed in SWBT's ducts, conduits, or rights-of-way, and SWBT shall not
         be liable to CLEC for any damages to CLEC's facilities other than as
         provided in Section 7.6.12. In no event shall SWBT be liable to CLEC
         under this Agreement for any injury, loss, or damage resulting from
         the acts or omissions of (1) any joint user or any person acting on a
         joint user's behalf, (2) any governmental body or governmental
         employee, (3) any third-party property owner or persons acting on
         behalf of such property owner, or (4) any licensee, invitee,
         trespasser, or other person present at the site or in the vicinity of
         any SWBT pole, duct, conduit, or right-of-way in any capacity other
         than as a SWBT employee or person acting on SWBT's behalf. In no event
         shall SWBT be liable to CLEC under this Agreement for injuries,
         losses, or damages resulting from acts of God (including but no
         limited to storms, floods, fires, and earthquakes), wars, civil
         disturbances, espionage or other criminal acts committed by persons or
         entities not acting on SWBT's behalf, cable cuts by persons other than
         SWBT's employees or persons acting on SWBT's behalf, or other causes
         beyond SWBT's control which occur at sites subject to this Agreement.

7.6.9    DAMAGE TO FACILITIES

7.6.9.1  Each party (the "responsible party"), and persons acting on behalf of
         the responsible party, shall exercise due care to avoid damaging the
         facilities of the other party (the "injured party"). In the event such
         damage occurs, the responsible party or persons acting

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         on behalf of the responsible party shall immediately report such
         damages to the injured party, and the injured party shall promptly
         make such arrangements as may be necessary to restore service to its
         customers using the facilities affected.

7.6.9.2  The responsible party shall reimburse the injured party for the actual
         costs incurred by the injured party for repair of facilities damaged by
         the willful misconduct, grossly negligent acts, grossly negligent
         omissions, and negligent acts (but not negligent omissions) of
         employees of the responsible party or independent contractors acting on
         the responsible party's behalf; provided, however, that the injured
         party shall be limited to recovery of those costs which cannot be
         recovered from the independent contractor causing the damage. The
         responsible party shall not be liable to the injured party under this
         section until the injured party's claims against the independent
         contractor causing the damage have been adjudicated or settled and the
         amount of the indemnified party's claim against the indemnifying party
         is determinable.

7.6.10   NO LIMITATIONS OF LIABILITY IN CONTRAVENTION OF FEDERAL OR STATE LAW.
         Nothing contained in this Agreement shall be construed as exempting
         either party from any liability, or limiting such party's liability, in
         contravention of federal law or in contravention of the laws of this
         State.

7.6.11   CLAIMS AGAINST THIRD PARTIES. Nothing contained in this Agreement shall
         be construed as requiring either party to forego any claims that such
         party may have against third parties, including but not limited to
         contractors, subcontractors, or persons (other than the other party's
         employees) acting on the other party's behalf.

7.6.12   INDEMNITIES EXCLUDED. Except as expressly provided above, neither party
         (as an "indemnifying party") shall be required to indemnify or defend
         the other party (as an "indemnified party") against, or hold the
         indemnified party harmless from, any suit, claim, demand, loss, damage,
         liability, fine, penalty, or expense except to the extent proximately
         caused by or resulting from:

          (a)  any breach by the indemnified party of any provision of this
               Agreement or any breach by the indemnified party of the parties'
               interconnection agreement, if any;

          (b)  the violation of any law by any employee of the indemnified party
               or other person acting on the indemnified party's behalf;

          (c)  willful or intentional misconduct or gross negligence committed
               by any employee of the indemnified party or by any other person
               acting on the indemnified party's behalf, or

          (d)  any negligent act or acts committed by any employee of the
               indemnified party or other person acting on the indemnified
               party's behalf.

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8.0      PAYMENT OF RATES AND CHARGES

8.1      Except as otherwise specifically provided elsewhere in this Agreement,
         the Parties will pay all rates and charges due and owing under this
         Agreement within thirty (30) days of receipt of an invoice. Except as
         otherwise specifically provided in this Agreement interest on overdue
         invoices will apply at the six (6) month Commercial Paper Rate
         applicable on the first business day of each calendar year.

9.0      DISPUTE RESOLUTION

9.1      FINALITY OF DISPUTES

9.1.1    Except as otherwise specifically provided in this Agreement, no claims
         will be brought for disputes arising from this Agreement more than 24
         months from the date the occurrence which gives rise to the dispute is
         discovered or reasonably should have been discovered with the exercise
         of due care and attention.

9.2      ALTERNATIVE TO LITIGATION

9.2.1    The Parties desire to resolve disputes arising out of this Agreement
         without litigation. Accordingly, except for action seeking a temporary
         restraining order or an injunction related to the purposes of this
         Agreement, or suit to compel compliance with this Dispute Resolution
         process, the Parties agree to use the following Dispute Resolution
         procedure with respect to any controversy or claim arising out of or
         relating to this Agreement or its breach.

9.3      INFORMAL RESOLUTION OF DISPUTES

9.3.1    In the case of any dispute and at the written request of a Party, each
         Party will appoint a knowledgeable, responsible representative to meet
         and negotiate in good faith to resolve any dispute arising under this
         Agreement. The location, form, frequency, duration, and conclusion of
         these discussions will be left to the discretion of the
         representatives. Upon agreement, the representatives may utilize other
         alternative dispute resolution procedures such as mediation to assist
         in the negotiations. Discussions and the correspondence among the
         representatives for purposes of settlement are exempt from discovery
         and production and will not be admissible in the arbitration described
         below or in any lawsuit without the concurrence of both parties.
         Documents identified in or provided with such communications, which
         are not prepared for purposes of the negotiations, are not so exempted
         and, if otherwise admissible, may be admitted in evidence in the
         arbitration or lawsuit. Unless otherwise provided herein, or upon the
         Parties' agreement, either Party may invoke formal dispute resolution
         procedures including arbitration or other procedures as appropriate,
         not earlier than sixty (60) days after the date of the letter
         initiating dispute resolution under this paragraph.

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9.4      BILLING DISPUTES

9.4.1    The Parties agree that all unresolved billing disputes which involve
         amounts which represent one (1) percent or less of the amounts charged
         to CLEC by SWBT under this Agreement during the Contract Year in which
         the dispute arises will be submitted to binding arbitration pursuant to
         the provisions of Section 9.6. During the first Contract Year the
         Parties will annualize the initial months up to one year.

9.4.2    The Parties agree that if they are unable to resolve billing disputes
         which involve amounts which represent more than one (1) percent of the
         amounts charged to CLEC by SWBT under this Agreement during the
         Contract Year in which the dispute arises, then either party may
         proceed with any remedy available to it pursuant to law, equity or
         agency mechanisms; provided, that upon mutual agreement of the Parties
         such disputes may also be submitted to binding arbitration pursuant to
         Section 9.6. During the first Contract Year the Parties will annualize
         the initial months up to one year.

9.4.3    The Parties agree that all bills, including bills disputed in whole or
         in part, are to be paid when due, that interest applies to all overdue
         invoices as set forth in Section 8.1 to this Agreement, and that no
         other late payment fee or charge applies to overdue invoices. The
         Parties further agree that if any billing dispute is resolved in favor
         of the disputing Party the disputing Party will receive, by crediting
         or otherwise, interest applied to the disputed amount as set forth in
         Section 8.1.

9.4.4    To the extent that any other portions of this Agreement provide for a
         bill closure process between the parties, or if such a process is
         mutually agreed to by the Parties, the procedures involved in such
         processes will not be deemed to place a particular billing item in
         dispute for purposes of this Section.

9.4.5    Each Party agrees to notify the other Party of a billing dispute and
         may invoke the informal dispute resolution process described in Section
         9.3. The parties will endeavor to resolve the dispute within sixty (60)
         calendar days of the Bill Date on which such disputed charges appear,
         or, if the charges have been subject to the bill closure process
         described in Section 9.4.4, above, within sixty (60) calendar days of
         the closure of the billing period covered by such bill closure process.

9.5      OTHER DISPUTES

9.5.1    DISPUTE RESOLUTION PROCEDURE (DRP) 1 - Except as otherwise specifically
         set forth in the Agreement, the Parties agree that for all other
         disputes which arise under this Agreement, the dispute will be
         submitted to binding arbitration under Section 9.6 of this Agreement if
         the matter which is in dispute represents one (1) percent or less of
         the amounts charged to CLEC by SWBT under this Agreement during the
         Contract Year in which the matter which is disputed arises, whether
         measured by the disputing Party in terms of actual amounts owed or
         owing, or as amounts representing its business or other

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         risks or obligations relating to the matter in dispute. During the
         first Contract Year the Parties will annualize the initial months up
         to one year.

9.5.2    DISPUTE RESOLUTION PROCEDURE (DRP) 2 - Except as otherwise specifically
         set forth in the Agreement, for all other disputes involving matters
         which represent more than one (1) percent of the amounts charged to
         CLEC by SWBT under this Agreement during the Contract Year in which the
         dispute arises, whether measured by the disputing Party in terms of
         actual amounts owed or owing, or as amounts representing its business
         or other risks or obligations relating to the matter in dispute, then
         either Party may proceed with any remedy available to it pursuant to
         law, equity or agency mechanisms; provided that upon mutual agreement
         of the Parties, the dispute may be submitted to binding arbitration
         under Section 9.6. During the first Contract Year the Parties will
         annualize the initial months up to one year.

9.5.3    DISPUTE RESOLUTION PROCEDURE (DRP-3) - Except as otherwise specifically
         set forth in this agreement, for all disputes involving changes
         (including additions) to this Agreement under the Telecommunications
         Act of 1996, the Parties agree that such disputes will be submitted to
         the Kansas Corporation Commission for resolution pursuant to FTA96,
         provided that either Party may request expedited resolution by the
         Kansas Corporation Commission, with both Parties retaining all rights
         to appeal, and provided that both parties reserve the right to dispute
         whether such changes are appropriate.

9.5.4    The Parties agree that the Dispute Resolution procedures set forth in
         this Agreement are not intended to conflict with applicable
         requirements of the Act or the state commission with regard to
         procedures for the resolution of disputes arising out of this
         Agreement.

9.6      ARBITRATION

9.6.1    Disputes subject to binding arbitration under the provisions of this
         Agreement will be submitted to a single arbitrator pursuant to the
         Commercial Arbitration Rules of the American Arbitration Association
         or pursuant to such other provider of arbitration services or rules as
         the Parties may agree. The place where each separate arbitration will
         be held will alternate between Dallas, Texas, and St. Louis, Missouri.
         The arbitration hearing will be requested to commence within sixty
         (60) days of the demand for arbitration. The arbitrator will control
         the scheduling so as to process the matter expeditiously. The Parties
         may submit written briefs upon a schedule determined by the
         arbitrator. The Parties will request that the arbitrator rule on the
         dispute by issuing a written opinion within thirty (30) days after the
         close of hearings. The arbitrator has no authority to order punitive
         or consequential damages. The times specified in this Section may be
         extended or shortened upon mutual agreement of the Parties or by the
         arbitrator upon a showing of good cause. Each Party will bear its own
         costs of these procedures. The Parties will equally split the fees of
         the arbitration and the arbitrator. Judgment upon the award rendered
         by the arbitrator may be entered in any court having jurisdiction.

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10.0     TERMINATION OF SERVICE TO CLEC

10.1     Failure of CLEC to pay charges may be grounds for termination of this
         Agreement. If CLEC fails to pay when due, any and all charges billed to
         them under this Agreement, (Unpaid Charges), and any portion of such
         charges remain unpaid more than fifteen (15) calendar days after the
         due date of such Unpaid Charges, SWBT will notify CLEC in writing that
         in order to avoid having service disconnected, CLEC must remit all
         Unpaid Charges, whether disputed or undisputed, to SWBT within fifteen
         (15) calendar days after receipt of said notice. Disputes hereunder
         will be resolved in accordance with the Dispute Resolution Procedures
         set out in Section 9 of this Agreement.

10.2     If any CLEC charges remain unpaid at the conclusion of the time period
         as set forth in Section 10.1 above (30 calendar days from the due date
         of such unpaid charges), SWBT will notify CLEC, the appropriate
         commission(s) and the end user's IXC(s) of Record in writing, that
         unless all charges are paid within fifteen (15) calendar days, CLEC's
         service will be disconnected and CLEC's end users may be switched to
         SWBT local service. SWBT will also suspend order acceptance at this
         time.

10.3     If any CLEC charges remain unpaid or undisputed thirty (30) calendar
         days past the due date of the unpaid charges as described in Section
         10.2 above, CLEC will, at its sole expense, notify its end users, the
         Commission and the end user's of Record that their service may be
         disconnected for CLEC failure to pay unpaid charges, and that its end
         users must select a new local service provider within fifteen (15)
         calendar days. The notice will also advise the end user that SWBT will
         assume the end user's account at the end of the fifteen (15) calendar
         day period should the end user fail to select a new local service
         provider.

10.4     If any CLEC charges remain unpaid or undisputed forty-five (45)
         calendar days past the due date, SWBT will disconnect CLEC and transfer
         all CLEC's end users who have not selected another local service
         provider directly to SWBT's service. These end users will received the
         same services provided through CLEC at the time of service. These end
         users will receive the same services provided through CLEC at the time
         of transfer. SWBT will inform the Commission and the end user's IXC(s)
         of Record of the names of all end users transferred through this
         process. Applicable service establishment charges for switching end
         users from CLEC to SWBT will be assessed to CLEC.

10.5     Within five (5) calendar days of the transfer (50 calendar days past
         CLEC's due date), SWBT will notify all affected end users that because
         of CLEC's failure to pay, their service is now being provided by SWBT.
         SWBT will also notify the end user that they have thirty (30) calendar
         days to select a local service provider. If the end user does not
         select an LSP within 30 calendar days the customer will remain a SWBT
         local customer.

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10.6     SWBT may discontinue service to CLEC upon failure to pay undisputed
         charges as provided in this section, and will have no liability to
         CLEC in the event of such disconnection.

10.7     After disconnect procedures have begun, SWBT will not accept service
         orders from CLEC until all unpaid charges are paid. SWBT will have the
         right to require a deposit equal to one month's charges (based on the
         highest previous month of service from SWBT) prior to resuming service
         to CLEC after disconnect for nonpayment.

10.8     Beyond the specifically set out limitations in this section, nothing
         herein will be interpreted to obligate SWBT to continue to provide
         service to any such end users or to limit any and all disconnection
         rights SWBT may have with regard to such end users.

11.0     NOTICES

11.1     In the event any notices are required to be sent under the terms of
         this Agreement, they may be sent by mail and are deemed to have been
         given on the date received. Notice may also be effected by personal
         delivery or by overnight courier, and will be effective upon receipt.
         Notice may also be provided by facsimile, which will be effective on
         the next business day following the date of transmission; provided,
         however, notices to a Party's 24-hour maintenance contact number will
         be by telephone and/or facsimile and will be deemed to have been
         received on the date transmitted. The Parties will provide the
         appropriate telephone and facsimile numbers to each other. Unless
         otherwise specifically provided in this Agreement, notice will be
         directed as follows:

11.2     If to CLEC:
                           Greg Lawhon
                           Sr. Vice President and General Counsel
                           Birch Telecom of Kansas, Inc.
                           1004 Baltimore Avenue, Suite 900
                           Kansas City, MO 64105
                           816-842-7507 (FAX); 816-842-7560 x225 (voice contact)

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11.3     If to SWBT:
                           Executive Director-Industry Markets
                           Southwestern Bell Telephone Company
                           Room 640
                           Four Bell Plaza
                           Dallas, Texas 75202
                           214-858-0281 (FAX); 214-464-1068 (voice contact)

         Either Party may unilaterally change its designated representative
         and/or address, telephone contact number or facsimile number for the
         receipt of notices by giving seven (7) days' prior written notice to
         the other Party in compliance with this Section. Any notice or other
         communication will be deemed given when received.

12.0     TAXES

12.1     With respect to any purchase of service under this Agreement, if any
         Federal, state or local government tax, fee, surcharge, or other
         tax-like charge (a "Tax") is required or permitted by applicable law,
         ordinance or tariff to be collected from a purchasing Party by the
         providing Party, then (i) the providing Party will bill, as a
         separately stated item, the purchasing Party for such Tax, (ii) the
         purchasing Party will timely remit such Tax to the providing Party, and
         (iii) the providing Party will remit such collected Tax to the
         applicable taxing authority.

12.2     If the providing Party does not collect a Tax because the purchasing
         Party asserts that it is not responsible for the tax, or is otherwise
         excepted from the obligation which is later determined by formal action
         to be wrong then, as between the providing Party and the purchasing
         Party, the purchasing Party will be liable for such uncollected Tax and
         any interest due and/or penalty assessed on the uncollected Tax by the
         applicable taxing authority or governmental entity.

12.3     If either Party is audited by a taxing authority or other governmental
         entity the other Party agrees to reasonably cooperate with the Party
         being audited in order to respond to any audit inquiries in a proper
         and timely manner so that the audit and/or any resulting controversy
         may be resolved expeditiously.

12.4     If applicable law excludes or exempts a purchase of services under this
         Agreement from a Tax, and if such applicable law also provides an
         exemption procedure, such as an exemption certificate requirement,
         then, if the purchasing Party complies with such procedure, the
         providing Party, subject to Section 12.2, will not collect such Tax
         during the effective period of the exemption. Such exemption will be
         effective upon receipt of the exemption certificate or affidavit in
         accordance with Section 12.7.

12.5     If applicable law excludes or exempts a purchase of services under this
         Agreement from a Tax, but does not also provide an exemption procedure,
         then the providing Party will not

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         collect such Tax if the purchasing Party (i) furnishes the providing
         Party with a letter signed by an officer of the purchasing Party
         claiming an exemption and identifying the applicable law which allows
         such exemption, and (ii) supplies the providing Party with an
         indemnification agreement, reasonably acceptable to the providing
         Party, which holds the providing Party harmless on an after-tax basis
         with respect to forbearing to collect such Tax.

12.6     With respect to any Tax or Tax controversy covered by this Section 12,
         the purchasing Party will be entitled to contest, pursuant to
         applicable law, and at its own expense, any Tax that it is ultimately
         obligated to pay. The purchasing Party will be entitled to the benefit
         of any refund or recovery resulting from such a contest. The providing
         Party will cooperate in any such contest.

12.7     All notices, affidavits, exemption certificates or other communications
         required or permitted to be given by either Party to the other under
         this Section 12, will be made in writing and will be delivered by
         certified mail, and sent to the addresses stated in Section 11 and to
         the following:

         To SWBT:          Executive Director - Tax
                           Southwestern Bell - Room 34/L/1
                           One Bell Center
                           St. Louis, Missouri 63101

To CLEC:                   Greg Lawhon
                           Sr. Vice President and General Counsel
                           Birch Telecom of Kansas, Inc.
                           1004 Baltimore Avenue, Suite 900
                           Kansas City, MO 64105
                           816-842-7507 (FAX); 816-842-7560 x225 (voice contact)

         Either Party may from time-to-time designate another address or
         addressee by giving notice in accordance with the terms of this Section
         12.7.

         Any notice or other communication will be deemed to be given when
         received.

13.0     FORCE MAJEURE

         Except as otherwise specifically provided in this Agreement, neither
         Party will be liable for any delay or failure in performance of any
         part of this Agreement caused by a Force Majeure condition, including
         acts of the United States of America or any state, territory, or
         political subdivision thereof, acts of God or a public enemy, fires,
         floods, labor disputes such as strikes and lockouts, freight embargoes,
         earthquakes, volcanic actions, wars, civil disturbances, cable cuts, or
         other causes beyond the reasonable control of the Party claiming
         excusable delay or other failure to perform. Provided, Force Majeure
         will

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         not include acts of any Governmental Authority relating to
         environmental, health, or safety conditions at work locations. If any
         Force Majeure condition occurs the Party whose performance fails or is
         delayed because of such Force Majeure conditions will give prompt
         notice to the other Party, and upon cessation of such Force Majeure
         condition, will give like notice and commence performance hereunder as
         promptly as reasonably practicable.

14.0     PUBLICITY

14.1     The Parties agree not to use in any advertising or sales promotion,
         press releases or other publicity matters, any endorsements, direct or
         indirect quotes or pictures implying endorsement by the other Party or
         any of its employees without such Party's prior written approval. The
         Parties will submit to each other for written approval, prior to
         publication, all such publicity endorsement matters that mention or
         display the other's name and/or marks or contain language from which a
         connection to said name and/or marks may be inferred or implied.

14.2     Neither Party will offer any services using the trademarks, service
         marks, trade names, brand names, logos, insignia, symbols or decorative
         designs of the other Party or its affiliates without the other Party's
         written authorization.

15.0     NETWORK MAINTENANCE AND MANAGEMENT

15.1     The Parties will work cooperatively to implement this Agreement. The
         Parties will exchange appropriate information (e.g., maintenance
         contact numbers, network information, information required to comply
         with law enforcement and other security agencies of the Government,
         etc.) to achieve this desired reliability.

15.2     Each Party will provide a 24-hour contact number for Network Traffic
         Management issues to the other's surveillance management center. A
         facsimile (FAX) number must also be provided to facilitate event
         notifications for planned mass calling events. Additionally, both
         Parties agree that they will work cooperatively to ensure that all such
         events will attempt to be conducted in such a manner as to avoid
         disruption or loss of service to other end users. Each party will
         maintain the capability of respectively implementing basic protective
         controls such as "Cancel To" or "Call Gap."

15.3     Neither Party will use any service provided under this Agreement in a
         manner that impairs the quality of service to other carriers or to
         either Party's subscribers. Either Party will provide the other Party
         notice of said impairment at the earliest practicable time.

16.0     LAW ENFORCEMENT AND CIVIL PROCESS

16.1     INTERCEPT DEVICES

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16.1.1   Local and federal law enforcement agencies periodically request
         information or assistance from local telephone service providers. When
         either Party receives a request associated with a customer of the other
         Party, the receiving Party will refer such request to the appropriate
         Party, unless the request directs the receiving Party to attach a pen
         register, trap-and-trace or form of intercept on the Party's own
         facilities, in which case that Party will comply with any valid
         request, to the extent the receiving party is able to do so; if such
         compliance requires the assistance of the other Party such assistance
         will be provided.

16.2     SUBPOENAS

16.2.1   If a Party receives a subpoena for information concerning an end user
         the Party knows to be an end user of the other Party, the receiving
         Party will refer the subpoena to the requesting entity with an
         indication that the other Party is the responsible company. Provided,
         however, if the subpoena requests records for a period of time during
         which the receiving Party was the end user's service provider, the
         receiving Party will respond to any valid request to the extent the
         receiving party is able to do so; if response requires the assistance
         of the other party such assistance will be provided.

16.3     LAW ENFORCEMENT EMERGENCIES

16.3.1   If a Party receives a request from a law enforcement agency to
         implement at its switch a temporary number change, temporary
         disconnect, or one-way denial of outbound calls for an end user of the
         other Party, the receiving Party will comply so long as it is a valid
         emergency request. Neither Party will be held liable for any claims or
         damages arising from compliance with such requests, and the Party
         serving the end user agrees to indemnify and hold the other Party
         harmless against any and all such claims.

17.0     CHANGES IN SUBSCRIBER CARRIER SELECTION

17.1     With respect to Resale services and unbundled Network Elements provided
         to end users, each Party must obtain end user authorization prior to
         requesting a change in the end users' provider of local exchange
         service (including ordering end user specific Network Elements) and
         must retain such authorizations for twelve (12) months. The
         authorization must conform with federal rules regarding changes of
         presubscribed interexchange carriers until such time as there are
         federal or state rules applicable to changes of local exchange service
         providers. Thereafter, the authorization must comply with each such
         rule. The party submitting the change request assumes responsibility
         for applicable charges as specified in Section 258(b) of the
         Telecommunications Act of 1996.

17.2     Only an end user can initiate a challenge to a change in its local
         exchange service provider. In connection with such challenges each
         party will follow procedures which conform with federal rules regarding
         challenges to changes of presubscribed

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         interexchange carriers, if any, until such time as there are federal
         or state rules applicable to challenges to changes of local exchange
         service providers. Thereafter, the procedures each Party will follow
         concerning challenges to changes of local exchange service providers
         will comply with such rule. If an end user notified SWBT or CLEC that
         the end user requests local exchange service, the Party receiving such
         request shall be free to immediately provide service to such end user.
         The party receiving such request shall be free to connect the end user
         to any local service provider based upon the local service provider's
         request and assurance that proper end user authorization has been
         obtained. Either Party shall make authorizations available to the
         other Party upon request and at no charge only when such request is
         made in order to investigate claims of unauthorized changes involving
         CLECs other than SWBT, initiated by an end user.

17.3     When an end user changes or withdraws authorization, each Party will
         release customer specific facilities in accordance with the end user
         customer's directions, or the directions of the end user's agent.
         Further, when an end user abandons the premise, SWBT is free to reclaim
         the facilities for use by another customer and is free to issue service
         orders required to reclaim such facilities.

17.4     Neither Party shall be obligated by this Agreement to investigate any
         allegations of unauthorized changes in local exchange services
         (slamming) on behalf of the other Party or a third Party. If either
         Party, on behalf of the other Party, agrees to investigate an alleged
         incidence of slamming, the requesting party will provide the billed
         telephone number and information adequate to allow the other Party to
         investigate the incidence, and that Party shall charge the other Party
         a mutually agreed investigation fee.

18.0     AMENDMENTS OR WAIVERS

18.1     Except as otherwise provided in this Agreement, no waiver of any
         provision of this Agreement and no consent to any default under this
         Agreement will be effective unless the same is in writing and signed by
         an officer of the Party against whom such waiver or consent is claimed.
         In addition, no course of dealing or failure of a Party strictly to
         enforce any term, right or condition of this Agreement will be
         construed as a waiver of such term, right, or condition. No amendment
         of any provision of this Agreement will be effective unless the same
         (a) is in a writing that expressly states that it amends this
         Agreement, (b) has been signed by a person with authority to bind SWBT
         and a person with authority to bind CLEC, and (c) has been filed with
         and approved by the State Commission. By entering into this Agreement,
         the Parties do not waive any right granted to them pursuant to the Act;
         however, the Parties enter into this Agreement without prejudice to any
         positions they have taken previously, or may take in the future in any
         legislative, regulatory or other public forum addressing any matters,
         including matters related to the types of arrangements prescribed by
         this Agreement.

         Without limiting the general applicability of the foregoing, this
         Agreement is without prejudice to any position being taken, or to be
         taken, by the Parties in the arbitration

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         proceeding before the Commission styled PETITION BY AT&T
         COMMUNICATIONS OF THE SOUTHWEST, INC. FOR COMPULSORY ARBITRATION OF
         UNRESOLVED ISSUES WITH SOUTHWESTERN BELL TELEPHONE COMPANY KCC Docket
         No. 97-AT&T-290-ARB ("the Arbitration Proceeding") and the generic
         cost proceeding styled IN THE MATTER OF THE JOINT APPLICATION OF
         SPRINT COMMUNICATION COMPANY, L.P., UNITED TELEPHONE COMPANY OF
         KANSAS, UNITED TELEPHONE COMPANY OF EASTERN KANSAS, UNITED TELEPHONE
         COMPANY OF SOUTH CENTRAL KANSAS, AND UNITED TELEPHONE COMPANY OF
         SOUTHEASTERN KANSAS FOR THE COMMISSION TO OPEN A GENERIC PROCEEDING ON
         SOUTHWESTERN BELL TELEPHONE COMPANY'S RATES FOR INTERCONNECTION,
         UNBUNDLED ELEMENTS, TRANSPORT AND TERMINATION, AND RESALE; KCC Docket
         No. 97-SCCC-149-GIT ("Cost Docket"), including any appeals of the
         Arbitration Proceeding or Cost Docket.

19.0     AUTHORITY

19.1     Each person whose signature appears below represents and warrants that
         he or she has authority to bind the Party on whose behalf he or she
         has executed this Agreement.

20.0     BINDING EFFECT

20.1     This Agreement will be binding on and inure to the benefit of the
         respective successors and permitted assigns of the Parties.

21.0     CONSENT

21.1     Where consent, approval, or mutual agreement is required of a Party,
         it will not be unreasonably withheld or delayed.

22.0     EXPENSES

22.1     Except as specifically set out in this Agreement, each party will be
         solely responsible for its own expenses involved in all activities
         related to the subject of this Agreement.

23.0     HEADINGS

23.1     The headings in this Agreement are inserted for convenience and
         identification only and will not be considered in the interpretation
         of this Agreement.

24.0     RELATIONSHIP OF PARTIES

24.1     This Agreement will not establish, be interpreted as establishing, or
         be used by either party to establish or to represent their relationship
         as any form of agency, partnership or joint venture. Neither Party will
         have any authority to bind the other or to act as an agent for the
         other unless written authority, separate from this Agreement, is
         provided. Nothing in the Agreement will be construed as providing for
         the sharing of profits or losses arising

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         out of the efforts of either or both of the Parties. Nothing herein
         will be construed as making either Party responsible or liable for the
         obligations and undertakings of the other Party.

25.0     CONFLICT OF INTEREST

25.1     The Parties represent that no employee or agent of either Party has
         been or will be employed, retained, paid a fee, or otherwise received
         or will receive any personal compensation or consideration from the
         other Party, or any of the other Party's employees or agents in
         connection with the arranging or negotiation of this Agreement or
         associated documents.

26.0     MULTIPLE COUNTERPARTS

26.1     This Agreement may be executed in multiple counterparts, each of which
         will be deemed an original but all of which will together constitute
         but one, and the same document.

27.0     THIRD PARTY BENEFICIARIES

27.1     Except as may be specifically set forth in this Agreement, this
         Agreement does not provide and will not be construed to provide third
         parties with any remedy, claim, liability, reimbursement, cause of
         action, or other privilege.

28.0     REGULATORY APPROVAL

28.1     Each Party agrees to cooperate with the other and with any regulatory
         agency to obtain regulatory approval. During the term of this
         Agreement, each Party agrees to continue to cooperate with each other
         and any regulatory agency so that the benefits of this Agreement may be
         achieved.

29.0     TRADEMARKS AND TRADE NAMES

29.1     Except as specifically set out in this Agreement, nothing in this
         Agreement will grant, suggest, or imply any authority for one Party to
         use the name, trademarks, service marks, or trade names of the other
         for any purpose whatsoever, absent written consent of the other Party.

30.0     REGULATORY AUTHORITY

30.1     SWBT will be responsible for obtaining and keeping in effect all
         Federal Communications Commission, state regulatory commission,
         franchise authority and other regulatory approvals that may be required
         in connection with the performance of its obligations under this
         Agreement. CLEC will be responsible for obtaining and keeping in effect
         all Federal Communications Commission, state regulatory commission,
         franchise

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         authority and other regulatory approvals that may be required in
         connection with its offering of services to CLEC Customers
         contemplated by this Agreement. CLEC will reasonably cooperate with
         SWBT in obtaining and maintaining any required approvals for which
         SWBT is responsible, and SWBT will reasonably cooperate with CLEC in
         obtaining and maintaining any required approvals for which CLEC is
         responsible.

30.2     SWBT will not, of its own volition, file a tariff or make another
         similar filing which supersedes this Agreement in whole or in part.
         SWBT will make no filings which are inconsistent with this commitment.
         This Section is not intended to apply to any SWBT tariffs or filings
         which do not affect CLEC's rights or SWBT's obligations to CLEC under
         this Agreement. This Section does not impair SWBT's right to file
         tariffs nor does it impair SWBT's right to file tariffs proposing new
         products and services and changes in the prices, terms and conditions
         of existing products and services, including discontinuance or
         grandfathering of existing features or services, of any
         telecommunications services that SWBT provides or hereafter provides to
         CLEC under this Agreement pursuant to the provision of Attachment 1:
         Resale, nor does it impair CLEC's right to contest such tariffs before
         the Commission.

30.3     In the event that SWBT is required by any governmental authority to
         file a tariff or make another similar filing in connection with the
         performance of any action that would otherwise be governed by this
         Agreement, SWBT will provide CLEC notice of the same.

30.4     If any tariff referred to in Section 30.3 becomes ineffective by
         operation of law, through deregulation or otherwise, the terms and
         conditions of such tariffs, as of the date on which the tariffs became
         ineffective, will be deemed incorporated if not inconsistent with this
         Agreement.

31.0     VERIFICATION REVIEWS

31.1     Subject to each Party's reasonable security requirements and except as
         may be otherwise specifically provided in this Agreement, either Party
         may audit the other Party's books, records and other documents once in
         each Contract Year for the purpose of evaluating the accuracy of the
         other Party's billing and invoicing. The Parties may employ other
         persons or firms for this purpose. Such audit will take place at a time
         and place agreed on by the Parties no later than thirty (30) days after
         notice thereof.

31.2     Each Party will promptly correct any billing error that is revealed in
         an audit, including making refund of any overpayment by the other Party
         in the form of a credit on the invoice for the first full billing cycle
         after the Parties have agreed upon the accuracy of the audit results.
         Any disputes concerning audit results will be resolved pursuant to the
         Dispute Resolution procedures described in Section 9 of this Agreement.

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31.3     Each Party will cooperate fully in any such audit, providing reasonable
         access to any and all appropriate employees and books, records and
         other documents reasonably necessary to assess the accuracy of the
         Party's bills.

31.4     Either Party may audit the other Party's books, records and documents
         more than once during any Contract Year if the previous audit found
         previously uncorrected net variances or errors in invoices in the other
         Party's favor with an aggregate value of at least two percent (2%) of
         the amounts payable by CLEC for Resale services, Network Elements or
         Combinations provided during the period covered by the audit.

31.5     Audits will be at the auditing Party's expense.

31.6     Upon (i) the discovery by either Party of overcharges not previously
         reimbursed to the other Party or (ii) the resolution of disputed
         audits, the affected Party will promptly reimburse the other Party the
         amount of any overpayment times the commercial paper rate applicable on
         the last day of the month preceding the month of discovery or
         resolution as above. In no event, however, will interest be assessed on
         any previously assessed or accrued late payment charges.

31.7     CLEC may require that, at the end of the first year of implementation
         of this Agreement, SWBT submit to an audit or examination of services
         performed under the interconnection agreement. Subsequent to the first
         year of implementation, CLEC may require that audits or examinations be
         performed if: (1) CLEC can show cause that it has a commercially
         reasonable basis to seek an audit or examination; and (2) the request
         for audit or examination specifically defines the particular services
         that it seeks to audit or examine. All audits requested by CLEC under
         this section shall be conducted at its expense. The dispute resolution
         provisions of this Agreement shall be used to resolve disputes arising
         concerning requests for audits or examinations, or the results of the
         audits or examinations.

31.8     From the Effective Date of this Agreement through April 1, 1998, SWBT
         may audit CLEC's operations, books, records, and other documents
         related to the development of the percent local usage (PLU) to be used
         to measure and settle untransmitted calling party numbers (CPN) in
         connection with Attachment 12: Compensation. SWBT will bear the
         reasonable expenses associated with this inspection.

31.9     Information obtained or received by CLEC in conducting the inspections
         described in Section 31.7 and information obtained or received by
         either Party in connection with Sections 31.1 through 31.6 and 31.8
         will be subject to the confidentiality provisions of Section 6 of this
         Agreement.

32.0     COMPLETE TERMS

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32.1     This Agreement constitutes the entire agreement between the parties
         concerning the subject matter hereof and supersedes any prior
         agreements, representations, statements, negotiations, understandings,
         proposals or undertakings, oral or written, with respect to the subject
         matter expressly set forth herein.

32.2     Neither Party will be bound by an amendment, modification or additional
         term unless it is reduced to writing signed by an authorized
         representative of the Party sought to be bound.

33.0     COOPERATION ON PREVENTING END USER FRAUD

33.1     The Parties agree to cooperate with one another to investigate,
         minimize, and take corrective action in cases of fraud. The Parties'
         fraud minimization procedures are to be cost-effective and implemented
         so as not to unduly burden or harm one Party as compared to the other.

33.2     In cases of suspected fraudulent activity by an end user, at a minimum,
         the cooperation referenced in the above paragraph will include
         providing to the other Party, upon request, information concerning end
         users who terminate services to that Party without paying all
         outstanding charges. The Party seeking such information is responsible
         for securing the end user's permission to obtain such information.

34.0     NOTICE OF NETWORK CHANGES

         SWBT agrees to provide CLEC reasonable notice consistent with
         applicable FCC rules of changes in the information necessary for the
         transmission and routing of services using SWBT's facilities or
         networks, as well as other changes that affect the interoperability of
         those respective facilities and networks. This Agreement is not
         intended to limit SWBT's ability to upgrade its network through the
         incorporation of new equipment, new software or otherwise so long as
         such upgrades are not inconsistent with SWBT's obligations to CLEC
         under the terms of this Agreement.

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35.0     GOOD FAITH PERFORMANCE

35.1     In the performance of their obligations under this Agreement the
         Parties will act in good faith and consistently with the intent of the
         Act. Where notice, approval or similar action by a Party is permitted
         or required by any provision of this Agreement, (including, without
         limitation, the obligation of the parties to further negotiate the
         resolution of new or open issues under this Agreement) such action will
         not be unreasonably delayed, withheld or conditioned.

36.0     RESPONSIBILITY OF EACH PARTY

36.1     Each Party is an independent contractor, and has and hereby retains the
         right to exercise full control of and supervision over its own
         performance of its obligations under this Agreement and retains full
         control over the employment, direction, compensation and discharge of
         its employees assisting in the performance of such obligations. Each
         Party will be solely responsible for all matters relating to payment of
         such employees, including compliance with social security taxes,
         withholding taxes and all other regulations governing such matters.
         Each party will be solely responsible for proper handling, storage,
         transport and disposal at its own expense of all (i) substances or
         materials that it or its contractors or agents bring to, create or
         assume control over at Work Locations or, (ii) Waste resulting
         therefrom or otherwise generated in connection with its or its
         contractors' or agents' activities at the Work Locations. Subject to
         the limitations on liability and except as otherwise provided in this
         Agreement, each Party will be responsible for (i) its own acts and
         performance of all obligations imposed by applicable law in connection
         with its activities, legal status and property, real or personal and,
         (ii) the acts of its own affiliates, employees, agents and contractors
         during the performance of the Party's obligations hereunder.

37.0     TRANSMISSION OF TRAFFIC TO THIRD PARTIES

37.1     CLEC will not send to SWBT local traffic that is destined for the
         network of a third party unless CLEC has the authority to exchange
         traffic with that third party.

38.0     GOVERNMENTAL COMPLIANCE

38.1     CLEC and SWBT each will comply at its own expense with all applicable
         law related to i) its obligations under or activities in connection
         with this Agreement; of ii) its activities undertaken at, in connection
         with or relating to Work Locations. CLEC and SWBT each agree to
         indemnify, defend, (at the other party's request) and save harmless the
         other, each of its officers, directors and employees from and against
         any losses, damages, claims, demands, suits, liabilities, fines,
         penalties, and expenses (including reasonable attorneys' fees) that
         arise out of or result from i) its failure or the failure of its
         contractors or agents to so comply or ii) any activity, duty or status
         of it or its contractors or agents that triggers any legal obligation
         to investigate or remediate environmental contamination. SWBT, at

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         its own expense, will be solely responsible for obtaining from
         governmental authorities, building owners, other carriers, and any
         other persons or entities, all rights and privileges (including, but
         not limited to, space and power), which are necessary for SWBT to
         provide the Network Elements and Resale services pursuant to this
         Agreement.

39.0     RESPONSIBILITY FOR ENVIRONMENTAL HAZARDS AND CLAIMS

39.1     DISCLOSURE OF POTENTIAL HAZARDS: When and if CLEC notifies SWBT that
         CLEC intends to enter or perform work pursuant to this Agreement in,
         on, or within the vicinity of any particular SWBT building, manhole,
         pole, duct, conduit, right-of-way, or other facility (hereinafter "Work
         Location"), SWBT shall timely notify CLEC of any Environmental Hazard
         at that Work Location of which SWBT has actual knowledge, except that
         this duty shall not apply to any Environmental Hazard (i) of which CLEC
         already has actual knowledge or (ii) was caused solely by CLEC or (iii)
         would be obvious and apparent to anyone coming to the Work Location.
         For purposes of this Agreement, "Environmental Hazard" shall mean (i)
         the presence of petroleum vapors or other gases in hazardous
         concentrations in a manhole or other confined space, or conditions
         reasonably likely to give rise to such concentrations; (ii) the
         presence of electrical cable in a conduit system; (iii)
         asbestos-containing materials; (iv) emergency exit routes and warning
         systems, if and to the extent owned or operated by SWBT; and (v) any
         potential hazard that would not be obvious to an individual entering
         the Work Location or detectable using work practices standard in the
         industry.

39.2     EVALUATION OF POTENTIAL HAZARDS: Without limiting the foregoing, after
         providing prior notice to SWBT, CLEC shall have the right to inspect,
         test, or monitor any Work Location for possible Environmental Hazards
         as necessary or appropriate to comply with law or to protect its
         employees, contractors or others from the possible effects of
         Environmental Hazards. CLEC shall be responsible for conducting such
         inspections, testing or monitoring in a way that does not unreasonably
         interfere with SWBT's business operations after consultation with SWBT,
         and shall return SWBT's property to substantially the same condition as
         it would have been without such inspections, testing or monitoring.

39.3     MANAGING DISTURBED MATERIALS AND MEDIA: If and to the extent that
         CLEC's activity at any Work Location involves the excavation,
         extraction, or removal of asbestos or other manmade materials or
         contaminated soil, groundwater, or other environmental media, then CLEC
         rather than SWBT shall be responsible in the first instance for the
         subsequent treatment, disposal, or other management of such materials
         and media.

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39.4     INDEMNIFICATION:

39.4.1   Each party shall indemnify, on request defend, and hold harmless the
         other party and each of its officers, directors and employees from any
         and all suits, claims, demands, losses, damages, liabilities, fines,
         penalties, or expenses, of every kind and character (including
         reasonable attorneys' fees), on account of or in connection with any
         injury, loss, or damage to any person or property, or to the
         environment, to the extent any of them arise out of or in connection
         with the violation or breach, by any employee of the indemnifying party
         or other person acting on the indemnifying party's behalf, of this
         Section 39.0 or any federal, state, or local environmental statute,
         rule, regulation, ordinance, or other applicable law or provision of
         this agreement dealing with hazardous substances or protection of human
         health or the environment.

39.4.2   CLEC shall indemnify, on request defend, and hold harmless SWBT and
         each of its officers, directors and employees from any and all suits,
         claims, demands, losses, damages, liabilities, fines, penalties, or
         expenses, of every kind and character (including reasonable attorneys'
         fees), on account of or in connection with any injury, loss, or damage
         to any person or property, or to the environment, to the extent any of
         them arise out of or in connection with (i) the release or discharge,
         onto any public or private property, of any hazardous substances,
         regardless of the source of such hazardous substances, by any employee
         of CLEC, or by any person acting on CLEC's behalf, while at a Work
         Location or (ii) the removal or disposal of any hazardous substances
         by any employee of CLEC or by any person acting on CLEC's behalf, or
         the subsequent storage, processing or other handling of such hazardous
         substances by any person or entity, after such substances have thus
         been removed from a Work Location or (iii) any environmental
         contamination or Environmental Hazard or release of a hazardous
         substance caused or created by CLEC or its contractors or agents.

39.4.3   SWBT shall indemnify, on request defend, and hold harmless CLEC and
         each of its officers, directors and employees from any and all suits,
         claims, demands, losses, damages, liabilities, fines, penalties, or
         expenses, of every kind and character (including reasonable attorneys'
         fees), asserted by any government agency or other third party on
         account of or in connection with any injury, loss, or damage to any
         person or property, or to the environment, to the extent any of them
         arise out of or in connection with (i) the release or discharge, onto
         any public or private property, of any hazardous substances,
         regardless of the source of such hazardous substances, by any employee
         of SWBT or by any person acting on SWBT's behalf, at a Work Location
         or (ii) the removal or disposal of any hazardous substances by any
         employee of SWBT or by any person acting on SWBT's behalf, or the
         subsequent storage, processing or other handling of such hazardous
         substances by any person or entity, after such substances have thus
         been removed from a Work Location or (iii) any environmental
         contamination or Environmental Hazard or release of a hazardous
         substance either (x) existing or occurring at any Work Location on or
         before the date of this agreement or (y) caused or created by SWBT or
         its contractors or agents.

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39.4.4   In the case of any conflict between this section 39.0 and section 7.6,
         the provisions of this section 39.0 shall control. This section 39.4
         shall not be subject to 7.6.12.

40.0     SUBCONTRACTING

40.1     If any obligation is performed through a subcontractor, each party will
         remain fully responsible for the performance of this Agreement in
         accordance with its terms, including any obligations either party
         performs through subcontractors, and each party will be solely
         responsible for payments due the party's subcontractors. No contract,
         subcontract or other Agreement entered into by either Party with any
         third party in connection with the provision of Resale services or
         Network Elements hereunder will provide for any indemnity, guarantee or
         assumption of liability by, or other obligation of, the other Party to
         this Agreement with respect to such arrangement, except as consented to
         in writing by the other Party. No subcontractor will be deemed a third
         party beneficiary for any purposes under this Agreement. Any
         subcontractor who gains access to CPNI or Confidential Information
         covered by this Agreement will be required by the subcontracting Party
         to protect such CPNI or Confidential Information to the same extent the
         subcontracting Party is required to protect the same under the terms of
         this Agreement.

41.0     REFERENCED DOCUMENTS

41.1     Whenever any provision of this Agreement refers to a technical
         reference, technical publication, CLEC Practice, SWBT Practice, any
         publication of telecommunications industry administrative or technical
         standards, or any other document specifically incorporated into this
         Agreement, it will be deemed to be a reference to the most recent
         version or edition (including any amendments, supplements, addenda, or
         successors) of each document that is in effect, and will include the
         most recent version or edition (including any amendments, supplements,
         addenda, or successors) of each document incorporated by reference in
         such a technical reference, technical publication, CLEC Practice, SWBT
         Practice, or publication of industry standards.

42.0     SEVERABILITY

42.1     If any term, condition or provision of this Agreement is held to be
         invalid or unenforceable for any reason, such invalidity or
         unenforceability will not invalidate the entire Agreement, unless such
         construction would be unreasonable. The Agreement will be construed as
         if it did not contain the invalid or unenforceable provision or
         provisions, and the rights and obligations of each party will be
         construed and enforced accordingly; provided, however, that in the
         event such invalid or unenforceable provision or provisions are
         essential elements of this Agreement and substantially impair the
         rights or obligations of either Party, the Parties will promptly
         negotiate a replacement provision or provisions.

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         If impasse is reached, the Parties will resolve said impasse under the
         dispute resolution procedures set forth in Section 9.5.2.

43.0     SURVIVAL OF OBLIGATIONS

43.1     Any liabilities or obligations of a Party for acts or omissions prior
         to the cancellation or termination of this Agreement, any obligation of
         a Party under the provisions regarding indemnification, Confidential
         Information, limitations on liability, and any other provisions of this
         Agreement which, by their terms, are contemplated to survive (or to be
         performed after) termination of this Agreement, will survive
         cancellation or termination thereof.

44.0     GOVERNING LAW

44.1     The validity of this Agreement, the construction and enforcement of its
         terms, and the interpretation of the rights and duties of the Parties
         will be governed by the laws of the State of Kansas other than as to
         conflicts of laws, except insofar as federal law may control any aspect
         of this Agreement, in which case federal law will govern such aspect.
         The Parties submit to personal jurisdiction in Topeka, Kansas, and
         waive any and all objections to a Kansas venue.

45.0     PERFORMANCE CRITERIA

45.1     Specific provisions governing failure to meet Performance Criteria are
         contained in Attachment 17: Failure to meet Performance Criteria.

46.0     OTHER OBLIGATIONS OF CLEC

46.1     For the purposes of establishing, provisioning and billing services,
         CLEC is required to provide to SWBT its state-specific authorized and
         nationally recognized OCN for facilities-based business
         (interconnection and/or unbundled network elements) in each SWBT state
         and a single separate and distinct OCN for resale services in any SWBT
         state. CLEC's name associated with specific resale OCN must be
         consistent among SWBT states.

47.0     DIALING PARITY; INTERIM NUMBER PORTABILITY

47.1     SWBT will ensure that all CLEC Customers experience the same dialing
         parity as similarly-situated customers of SWBT services, such that, for
         all call types: (i) an CLEC Customer is not required to dial any
         greater number of digits than a similarly-situated SWBT customer; (ii)
         the post-dial delay (time elapsed between the last digit dialed and the
         first network response), call completion rate and transmission quality
         experienced by a CLEC Customer is at least equal in quality to that
         experienced by a similarly-situated SWBT customer; and (iii) the CLEC
         Customer may retain its local telephone number.

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         SWBT further agrees to provide Interim Number Portability in
         accordance with the requirements of the Act. Specific requirements
         concerning Interim Number Portability are set forth in Attachment 14:
         Interim Number Portability.

48.0     BRANDING

48.1     Specific provisions concerning the branding of services provided to
         CLEC by SWBT under this Agreement are contained in the following
         Attachments and Appendices to this Agreement: Attachment 1: Resale;
         Appendix OS-Resale; Appendix DA-Resale; Attachment 2: Ordering &
         Provisioning-Resale; Attachment 3: Maintenance-Resale; Attachment 7:
         Ordering & Provisioning-Unbundled Network Elements; Attachment 8:
         Maintenance-Unbundled Network Elements.

49.0     CUSTOMER INQUIRIES

49.1     Each Party will refer all questions regarding the other Party's
         services or products directly to the other Party at a telephone number
         specified by that Party.

49.2     Each Party will ensure that all of their representatives who receive
         inquiries regarding the other Party's services: (i) provide the numbers
         described in Section 49.1 to callers who inquire about the other
         Party's services or products; and (ii) do not in any way disparage or
         discriminate against the other Party or its products or services.

50.0     DISCLAIMER OF WARRANTIES

50.1     TO THE EXTENT CONSISTENT WITH ITS OBLIGATIONS UNDER THE ACT, SWBT MAKES
         NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
         LIMITED TO ANY WARRANTY AS TO MERCHANTABILITY OR FITNESS FOR INTENDED
         OR PARTICULAR PURPOSE WITH RESPECT TO SERVICES PROVIDED HEREUNDER.

51.0     NO WAIVER

51.1     CLEC's agreement herein to accept less than fully operational
         electronic interfaces to operations support systems functions on and
         after January 1, 1997, will not be deemed a waiver of Section 251(c)(3)
         of the Act to receive such interfaces on that date.

52.0     EFFECT OF OTHER AGREEMENTS

52.1     The Parties shall comply with Section 252 (i) of the Act.

53.0     DEFINITIONS

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53.1     For purposes of this Agreement, certain terms have been defined in this
         Agreement to encompass meanings that may differ from, or be in addition
         to, the normal connotation of the defined word. Unless the context
         clearly indicates otherwise, any term defined or used in the singular
         will include the plural. The words "will" and "shall" are used
         interchangeably throughout this Agreement and the use of either
         connotes a mandatory requirement. The use of one or the other will not
         mean a different degree of right or obligation for either Party. A
         defined word intended to convey its special meaning is capitalized when
         used. Other terms that are capitalized and not defined in this
         Agreement will have the meaning in the Act.

54.0     RESALE

54.1     At the request of CLEC, and pursuant to the requirements of the Act,
         any telecommunications service that SWBT currently provides or
         hereafter offers to any customer in the geographic area where SWBT is
         the incumbent LEC will be made available to CLEC by SWBT for Resale in
         accordance with the terms, conditions and prices set forth in this
         Agreement. Specific provisions concerning Resale are addressed in
         Attachment 1: Resale, and other applicable Attachments.

55.0     UNBUNDLED NETWORK ELEMENTS

55.1     At the request of CLEC and pursuant to the requirements of the Act,
         SWBT will offer in the geographic area where SWBT is the incumbent LEC
         Network Elements to CLEC on an unbundled basis on rates, terms and
         conditions set forth in this Agreement that are just, reasonable, and
         non-discriminatory. Specific Provisions concerning Unbundled Network
         Elements are addressed in Attachment 6: Unbundled Network Elements, and
         other applicable Attachments.

56.0     ORDERING AND PROVISIONING, MAINTENANCE, CONNECTIVITY BILLING AND
         RECORDING, AND PROVISION OF CUSTOMER USAGE DATA

56.1     In connection with its Resale of services to CLEC, SWBT agrees to
         provide to CLEC Ordering and Provisioning Services, Maintenance
         Services, Connectivity Billing and Recording Services and Provision of
         Customer Usage Data Services pursuant to the terms specified in
         Attachments 2, 3, 4 and 5, respectively.

56.2     In connection with its furnishing Unbundled Networks Elements to CLEC,
         SWBT agrees to provide to CLEC Ordering and Provisioning Services,
         Maintenance services, Connectivity Billing and Recording services and
         Provision of Customer Usage Data services pursuant to the terms
         specified in Attachments 7, 8, 9 and 10, respectively.

57.0     NETWORK INTERCONNECTION ARCHITECTURE

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57.1     Where the Parties interconnect their networks, for purposes of
         exchanging traffic between their networks, the Parties agree to utilize
         the interconnection methods specified in Attachment 11: Network
         Interconnection Architecture. SWBT expressly recognizes that this
         provision and said Attachment are in no way intended to impair in any
         way CLEC's right to interconnect with unbundled Network Elements
         furnished by SWBT at any technically feasible point within SWBT's
         network, as provided in the Act.

58.0     COMPENSATION FOR DELIVERY OF TRAFFIC

58.1     The Parties agree to compensate each other for the transport and
         termination of traffic as provided in Attachment 12: Compensation.

59.0     ANCILLARY FUNCTIONS

59.1     Ancillary Functions may include, but are not limited to, Collocation,
         Rights-of-Way, Conduit and Pole Attachments. SWBT agrees to provide
         Ancillary Functions to CLEC as set forth in Attachment 13: Ancillary
         Functions.

60.0     RETENTION OF APPELLATE RIGHTS

60.1     Anything ordered by a court, regulatory agency or other adjudicative
         body to be included herein does not constitute a waiver by either
         Party of its appellate rights.

61.0     INSURANCE

61.1     At all times during the term of this Agreement, each Party shall keep
         and maintain in force at each Party's expense all insurance required by
         law (e.g. workers' compensation insurance) as well as general liability
         insurance for personal injury or death to any one person, property
         damage resulting from any one incident, automobile liability with
         coverage for bodily injury or property damage. Upon request from the
         other Party, each Party shall provide to the other Party evidence of
         such insurance (which may be provided through a program of self
         insurance).

62.0     INTENTIONALLY LEFT BLANK.

62.1     INTENTIONALLY LEFT BLANK.

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63.0     OTHER REQUIREMENTS AND ATTACHMENTS

63.1     This Agreement incorporates a number of listed Attachments which,
         together with their associated Appendices, Exhibits, and Addenda,
         constitute the entire Agreement between the Parties. In order to
         facilitate use and comprehension of the Agreement, the Attachments have
         been grouped under the following broad headings: Resale; Unbundled
         Network Elements; Network Interconnection Architecture; Ancillary
         Functions; and Other Requirements. It is understood that these
         groupings are for convenience of reference only, and are not intended
         to limit the applicability which any particular Attachment may
         otherwise have.

63.2     Appended to this Agreement and incorporated herein are the Attachments
         listed below. To the extent that any definitions, terms or conditions
         in any given Attachment differ from those contained in the main body of
         this Agreement, those definitions, terms or conditions will supersede
         those contained in the main body of this Agreement, but only in regard
         to the services or activities listed in that particular Attachment. In
         particular, if an Attachment contains a term length that differs from
         the term length in the main body of this Agreement, the term length of
         that Attachment will control the length of time that services or
         activities are to occur under the Attachment, but will not affect the
         term length of the remainder of this Agreement, except as may be
         necessary to interpret the Attachment.

         RESALE
         Attachment 1:  Resale
               Appendix Services/Pricing
                      Exhibit A:  SWBT's Telecommunications Services Available
                                  for Resale
                      Exhibit B:  SWBT's Other Services Available for Resale
               Appendix Customized Routing-Resale
               Appendix DA-Resale
               Appendix OS-Resale
               Appendix White Pages (WP)-Resale
         Attachment 2:  Ordering and Provisioning-Resale
         Attachment 3:  Maintenance-Resale
         Attachment 4:  Connectivity Billing-Resale
         Attachment 5:  Provision of Customer Usage Data-Resale

         UNBUNDLED NETWORK ELEMENTS
         Attachment 6:  Unbundled Network Elements (UNE)
               Appendix Pricing-UNE
               Appendix Pricing-UNE Schedule of Prices
               Appendix -UNE-NCS
               Appendix -UNE-NCS Schedule of Prices

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         Attachment 7:  Ordering and Provisioning-UNE
               Exhibit A-Electronic Ordering and Provisioning-UNE
         Attachment 8:  Maintenance-UNE
         Attachment 9:  Billing-Other
         Attachment 10:  Provision of Customer Usage Data-UNE

         NETWORK INTERCONNECTION ARCHITECTURE AND COMPENSATION
         Attachment 11:  Network Interconnection Architecture
               Appendix Interconnection Trunking Requirement (ITR)
               Appendix Network Interconnection Methods (NIM)
               Appendix SS7 Interconnection
         Attachment 12:  Compensation
               Appendix Cellular
               Appendix FGA

         ANCILLARY FUNCTIONS
         Attachment 13:  Ancillary Functions
               Appendix Collocation
               Appendix Poles, Conduit, ROW

         OTHER REQUIREMENTS
         Attachment 14:  Interim Number Portability
               Appendix Location Routing Number-Permanent Number Portability
         Attachment 15:  E911
         Attachment 16:  Network Security and Law Enforcement
         Attachment 17:  Performance Measurements
         Attachment 18:  Mutual Exchange of Directory Listing Information
         Attachment 19:  White Pages-Other (WP-O)
         Attachment 20:  Clearinghouse
         Attachment 21:  Numbering
         Attachment 22:  DA-Facilities Based
         Attachment 23:  OS-Facilities Based
         Attachment 24:  Recording-Facilities Based
         Attachment 25:  DSL

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      THIS AGREEMENT CONTAINS A BINDING ARBITRATION PROVISION WHICH MAY BE
ENFORCED BY THE PARTIES.


BIRCH TELECOM OF KANSAS, INC.          SOUTHWESTERN BELL TELEPHONE COMPANY
                                       BY SBC TELECOMMUNICATIONS, INC.,
                                       ITS AUTHORIZED AGENT


Signature: /S/ Gregory C. Lawhon       Signature:  /S/ John T. Stankey
           -------------------------               ----------------------------

Name:    Gregory C. Lawhon             Name:  John Stankey
       -----------------------------          ---------------------------------
(Print or Type)                               (Print or Type)

Title:  Senior Vice President          Title: President - Industry Markets
        ----------------------------          ---------------------------------
(Print or Type)

Date:    8/28/00                       Date:  8/30/00
       -----------------------------          ---------------------------------

AECN/OCN#           8856
          -------------------------
(Facility Based - if applicable)

AECN/OCN#
           ------------------------
(Resale - if applicable)