BIRCH TELECOM INC /MO
EXHIBIT 10.37
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<TYPE>EX-10.37
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<DESCRIPTION>EXHIBIT 10.37
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<P ALIGN="RIGHT"><FONT SIZE=2><A
NAME="ka4835_exhibit_10.37"> </A></FONT> <FONT SIZE=2><B>EXHIBIT 10.37         </B></FONT></P>

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<P ALIGN="CENTER"><FONT SIZE=2><A
NAME="ka4835_amendment_no._1_to_interconnec__ame05043"> </A></FONT> <FONT SIZE=2><B>AMENDMENT NO. 1<BR>       TO INTERCONNECTION AGREEMENT<BR>       BY AND BETWEEN<BR>       SOUTHWESTERN BELL TELEPHONE COMPANY<BR>       AND<BR>       BIRCH TELECOM OF
OKLAHOMA, INC.         </B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;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: </FONT></P>

<UL>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;Addition
of </FONT><FONT SIZE=2><B>Appendix Oklahoma Alternative Regulation Transition Plan</B></FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;Table
of Contents modified to add additional Appendix </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;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. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;(4)&nbsp;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. </FONT></P>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;(5)&nbsp;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. </FONT></P>

</UL>

<P><FONT SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;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. </FONT></P>

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<TD WIDTH="49%" COLSPAN=2><FONT SIZE=2><B>BIRCH TELECOM OF OKLAHOMA, INC.</B></FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="49%" COLSPAN=2><FONT SIZE=2><B>SOUTHWESTERN BELL TELEPHONE COMPANY</B></FONT></TD>
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<TD WIDTH="8%"><FONT SIZE=2>&nbsp;<BR>
&nbsp;</FONT></TD>
<TD WIDTH="41%" ALIGN="CENTER"><FONT SIZE=2>&nbsp;<BR>
&nbsp;</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;<BR>&nbsp;</FONT></TD>
<TD WIDTH="49%" COLSPAN=2><FONT SIZE=2>&nbsp;<BR></FONT> <FONT SIZE=2><B>By:&nbsp;SBC Telecommunications, Inc.,</B></FONT></TD>
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<TD WIDTH="41%" ALIGN="CENTER"><FONT SIZE=2>&nbsp;</FONT></TD>
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<TD WIDTH="49%" COLSPAN=2><FONT SIZE=2><B>Its authorized agent</B></FONT></TD>
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By:</FONT></TD>
<TD WIDTH="41%" ALIGN="CENTER"><FONT SIZE=2>&nbsp;<BR>
/s/&nbsp;</FONT><FONT SIZE=2>RINA HARTLINE</FONT><FONT SIZE=2>&nbsp;&nbsp;&nbsp;</FONT><HR NOSHADE></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;<BR>&nbsp;</FONT></TD>
<TD WIDTH="8%"><FONT SIZE=2>&nbsp;<BR>
By:</FONT></TD>
<TD WIDTH="41%" ALIGN="CENTER"><FONT SIZE=2>&nbsp;<BR>
/s/&nbsp;</FONT><FONT SIZE=2>WILLENA D. SLOCUM</FONT><FONT SIZE=2>&nbsp;&nbsp;&nbsp;</FONT><HR NOSHADE></TD>
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<TR VALIGN="TOP">
<TD WIDTH="8%"><FONT SIZE=2>Title:</FONT></TD>
<TD WIDTH="41%" ALIGN="CENTER"><FONT SIZE=2><I>Director State Regulation</I></FONT><HR NOSHADE></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="8%"><FONT SIZE=2>Title:</FONT></TD>
<TD WIDTH="41%" ALIGN="CENTER"><FONT SIZE=2><I>President&#151;Industry Markets</I></FONT><HR NOSHADE></TD>
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<TD WIDTH="8%"><FONT SIZE=2>Name:</FONT></TD>
<TD WIDTH="41%" ALIGN="CENTER"><FONT SIZE=2>Rina Hartline</FONT><HR NOSHADE><FONT SIZE=2> (Print or Type)</FONT></TD>
<TD WIDTH="2%"><FONT SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH="8%"><FONT SIZE=2>Name:</FONT></TD>
<TD WIDTH="41%" ALIGN="CENTER"><FONT SIZE=2>Willena D. Slocum</FONT><HR NOSHADE><FONT SIZE=2> (Print or Type)</FONT></TD>
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<FONT SIZE=2><A HREF="#ka4835_exhibit_10.37">EXHIBIT 10.37</A></FONT><BR>
<FONT SIZE=2><A HREF="#ka4835_amendment_no._1_to_interconnec__ame05043">AMENDMENT NO. 1 TO INTERCONNECTION AGREEMENT BY AND BETWEEN SOUTHWESTERN BELL TELEPHONE COMPANY AND BIRCH TELECOM OF OKLAHOMA, INC.</A></FONT><BR>
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