Amendment No. 1 to Interconnection Agreement between Southwestern Bell Telephone Company and Birch Telecom of Oklahoma, Inc.

Summary

This amendment updates the Interconnection Agreement between Southwestern Bell Telephone Company and Birch Telecom of Oklahoma, Inc. by adding an appendix related to the Oklahoma Alternative Regulation Transition Plan and updating the table of contents. The amendment does not change the original agreement’s effective date or term, except for the new appendix, which has its own termination date. The amendment takes effect upon approval by the Oklahoma Corporations Commission. All other terms of the original agreement remain unchanged.

EX-10.37 2 a2030704zex-10_37.htm EXHIBIT 10.37 Prepared by MERRILL CORPORATION www.edgaradvantage.com QuickLinks -- Click here to rapidly navigate through this document

EXHIBIT 10.37

AMENDMENT NO. 1
TO INTERCONNECTION AGREEMENT
BY AND BETWEEN
SOUTHWESTERN BELL TELEPHONE COMPANY
AND
BIRCH TELECOM OF OKLAHOMA, INC.

The Interconnection Agreement ("the Agreement") by and between Southwestern Bell Telephone Company ("TELCO") and Birch Telecom of Oklahoma, Inc. ("CLEC") is hereby amended as follows:

(1) Addition of Appendix Oklahoma Alternative Regulation Transition Plan

(2) Table of Contents modified to add additional Appendix

(3) This Amendment shall not modify or extend the Effective Date or Term of the underlying Agreement, but rather, contains a termination date specific to the Appendix Oklahoma Alternative Regulation Transition Plan adopted into the Interconnection Agreement which may or may not be coterminous with the underlying Agreement.

(4) EXCEPT AS MODIFIED HEREIN, ALL OTHER TERMS AND CONDITIONS OF THE UNDERLYING AGREEMENT SHALL REMAIN UNCHANGED AND IN FULL FORCE AND EFFECT, and such terms are hereby incorporated by reference and the Parties hereby reaffirm the terms and provisions thereof.

(5) This Amendment shall be filed with and is subject to approval by the Oklahoma Corporations Commission and shall become effective upon approval of the Commission.

IN WITNESS WHEREOF, this Amendment to the Agreement was exchanged in triplicate on this 15th day of June, 2000, by TELCO, signing by and through its duly authorized representative, and CLEC, signing by and through its duly authorized representative.

BIRCH TELECOM OF OKLAHOMA, INC.		SOUTHWESTERN BELL TELEPHONE COMPANY
		By: SBC Telecommunications, Inc.,
		Its authorized agent
By:	/s/ RINA HARTLINE	By:	/s/ WILLENA D. SLOCUM
Title:	Director State Regulation	Title:	President—Industry Markets
Name:	Rina Hartline (Print or Type)	Name:	Willena D. Slocum (Print or Type)

QuickLinks
EXHIBIT 10.37
AMENDMENT NO. 1 TO INTERCONNECTION AGREEMENT BY AND BETWEEN SOUTHWESTERN BELL TELEPHONE COMPANY AND BIRCH TELECOM OF OKLAHOMA, INC.