Kevin, Thanks for trying this. I'm going to begin with the idea that the bug is on the USR end (like last time). I did a packet trace at the time of the disconnection and saw nothing. But "show isdn" offers this clue: the session going up: NL: CALL REQUEST: 64K, #2572513 NL: CALL CONNECTED B1 #2572513 NL: CALL REQUEST: 64K, #2572513 NL: CALL CONNECTED B2 #2572513 the mysterious disconnect on the second B channel: NL: CALL CLEARED WITH CAUSE: 16 B2 #2572513 the P50 timing out and disconnecting the first B channel: NL: CLEAR REQUEST: B1 NL: CALL CLEARED WITH CAUSE: 16 B1 #2572513 Am I correct in thinking that if the P50 were disconnecting B2, it would say "clear request" like it does when disconnecting B1? Also the disconnection time is within 5 seconds of 15 minutes, 10 seconds into the call as reported by the P50's connection timer, but it's variable. If the P50 were causing the disconnection, I'd expect to see it disconnect closer to precisely at the same time every time (and probably at a rounder number). I'll try to get my ISP to try to get USR to fix it. Doug -- Doug Wyatt software development, Opcode Systems Inc. work: doug@opcode.com <A HREF="http://www.opcode.com/">http://www.opcode.com/</A> personal: doug@sonosphere.com <A HREF="http://www.sonosphere.com/doug/">http://www.sonosphere.com/doug/</A> new streaming audio samples: <A HREF="http://www.sonosphere.com/doug/music.html">http://www.sonosphere.com/doug/music.html</A> ++ Ascend Users Mailing List ++ To unsubscribe: send unsubscribe to ascend-users-request@bungi.com To get FAQ'd: <<A HREF="http://www.shore.net/~dreaming/ascend-faq">http://www.shore.net/~dreaming/ascend-faq</A>> or <<A HREF="ftp://ftp.shore.net/members/dreaming/ascend-faq.txt">ftp://ftp.shore.net/members/dreaming/ascend-faq.txt</A>> </PRE> <!--X-MsgBody-End--> <!--X-Follow-Ups--> <!--X-Follow-Ups-End--> <!--X-References--> <HR> <STRONG>References</STRONG>: <UL> <LI><STRONG><A HREF="msg05180.html">Re: (ASCEND) P50/USR 2B aggravation</A></STRONG></LI> <UL> <LI><EM>From</EM>: Kevin Smith <kevin@ascend.com></LI> </UL> <LI><STRONG><A HREF="msg05179.html">Re: (ASCEND) P50/USR 2B aggravation</A></STRONG></LI> <UL> <LI><EM>From</EM>: Doug Wyatt <doug@sonosphere.com></LI> </UL> <LI><STRONG><A HREF="msg05181.html">Re: (ASCEND) P50/USR 2B aggravation</A></STRONG></LI> <UL> <LI><EM>From</EM>: Kevin Smith <kevin@ascend.com></LI> </UL> </UL> <!--X-References-End--> <!--X-BotPNI--> <HR> <UL> <LI>Prev by Date: <STRONG><A HREF="msg05242.html">Re: (ASCEND) Feedback!</A></STRONG> </LI> <LI>Next by Date: <STRONG><A HREF="msg05241.html">Re: (ASCEND) 56K Modem Throughput Degradation</A></STRONG> </LI> <LI>Prev by thread: <STRONG><A HREF="msg05181.html">Re: (ASCEND) P50/USR 2B aggravation</A></STRONG> </LI> <LI>Next by thread: <STRONG><A HREF="msg05150.html">(ASCEND) Firewall resources</A></STRONG> </LI> <LI>Index(es): <UL> <LI><A HREF="mail146.html#05243"><STRONG>Main</STRONG></A></LI> <LI><A HREF="thrd28.html#05243"><STRONG>Thread</STRONG></A></LI> </UL> </LI> </UL> <!--X-BotPNI-End--> <!--X-User-Footer--> <!--X-User-Footer-End--> </BODY> </HTML>