Hi TechGuy,<br> Not sure if you have already rectified this problem but i can let you know that I had exactly the same problem about 6 month ago with a Cisco 3845 + NM-HDV2 + PVDM-32 x 2.<br><br>At the time I was running IOS
12.3.14T2 IP-voice Feature set. Looking at your "debug isdn q931" debug, the cause code is exactly the same as what I had.<br><br>Basically, the problem is to do with the E1/T1 controller's clocking getting out of sync with the Carrier's T1/E1. If you do a "show controllers e1" and check whether you have excessive Line Code Violations (LCVs), Path Code Violations (PCV), Slip Secs, etc. These should be minimal.
<br><br>Cisco may point you to the following BugID but I can assure that the work around did nothing to fix my problems.<br><br><a href="http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCef89288">http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCef89288
</a><br><br>Make sure that you follow the "Clocking Configurations On Voice-Capable IOS-Based Platforms" (<a href="http://www.cisco.com/en/US/products/hw/routers/ps259/products_tech_note09186a008031a072.shtml">http://www.cisco.com/en/US/products/hw/routers/ps259/products_tech_note09186a008031a072.shtml
</a>).<br><br>Also make sure you follows the "Configuring MGCP PRI Backhaul and T1 CAS Support for Cisco CallManager" (<a href="http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/callc_c/ccm_c/intcnf3.htm">
http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/callc_c/ccm_c/intcnf3.htm</a>) and that you do not add the "application mgcpapp" command to dial peers that support PRI backhaul.<br>
<br>Lastly, the most important step that I undertook was to roll-back (yes, beleive it or not) to IOS 12.3.11T6 IP-Voice or above and I've never had any problems since.<br><br>Hope this helps, other Cisco Bugs of interest are:
<br><br><a href="http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCEG90199">http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCEG90199</a><br><br><a href="http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCEG89017">
http://www.cisco.com/cgi-bin/Support/Bugtool/onebug.pl?bugid=CSCEG89017</a><br><br>Good Luck,<br><br>Serg<br><br><br><div><span class="gmail_quote">On 12/19/05, <b class="gmail_sendername"><a href="mailto:cisco-voip-request@puck.nether.net">
cisco-voip-request@puck.nether.net</a></b> <<a href="mailto:cisco-voip-request@puck.nether.net">cisco-voip-request@puck.nether.net</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Send cisco-voip mailing list submissions to<br> <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br><br>To subscribe or unsubscribe via the World Wide Web, visit<br> <a href="https://puck.nether.net/mailman/listinfo/cisco-voip">
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<br>than "Re: Contents of cisco-voip digest..."<br><br><br>Today's Topics:<br><br> 1. Call rings phones once and then drops (TechGuy)<br> 2. Re: Call rings phones once and then drops (TechGuy)<br> 3. RE: Call rings phones once and then drops (Mark Snow)
<br> 4. Tech Prefix from ATA186 (Ciscozest)<br> 5. Re: Call rings phones once and then drops (Teodor Georgiev)<br><br><br>----------------------------------------------------------------------<br><br>Message: 1<br>Date: Sat, 17 Dec 2005 13:33:40 -0600
<br>From: TechGuy <<a href="mailto:techguy@gmail.com">techguy@gmail.com</a>><br>Subject: [cisco-voip] Call rings phones once and then drops<br>To: <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net
</a><br>Message-ID:<br> <<a href="mailto:a1b07ea60512171133i79723eecs2d95643eaa5f034f@mail.gmail.com">a1b07ea60512171133i79723eecs2d95643eaa5f034f@mail.gmail.com</a>><br>Content-Type: text/plain; charset="iso-8859-1"
<br><br>Calls ring in on local PRI trunks on 3845 router, makes its way to<br>callmanager, makes its way to phone and rings once on the phone. But that<br>is it, calls instantly drop after first ring of the phone. Does not give
<br>person chance to answer just drops without any user intervention.<br><br>Using MGCP between 3845 and callmanager.<br><br>Any ideas?<br>-------------- next part --------------<br>An HTML attachment was scrubbed...<br>URL:
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<br><br>Message: 2<br>Date: Sat, 17 Dec 2005 14:19:32 -0600<br>From: TechGuy <<a href="mailto:techguy@gmail.com">techguy@gmail.com</a>><br>Subject: Re: [cisco-voip] Call rings phones once and then drops<br>To: <a href="mailto:cisco-voip@puck.nether.net">
cisco-voip@puck.nether.net</a><br>Message-ID:<br> <<a href="mailto:a1b07ea60512171219p288d1552qddda2d4820ebba47@mail.gmail.com">a1b07ea60512171219p288d1552qddda2d4820ebba47@mail.gmail.com</a>><br>Content-Type: text/plain; charset="iso-8859-1"
<br><br>Here is the debug:<br><br>emb3845#debug isdn q931<br>debug isdn q931 is ON.<br>emb3845#<br>*Dec 17 20:07:23.806: ISDN Se0/1/1:23 Q931: RX <- SETUP pd = 8 callref =<br>0x00D2<br> Bearer Capability i = 0x8090A2
<br> Standard = CCITT<br> Transer Capability = Speech<br> Transfer Mode = Circuit<br> Transfer Rate = 64 kbit/s<br> Channel ID i = 0xA98381<br> Exclusive, Channel 1
<br> Calling Party Number i = 0x2183, '3375015555'<br> Plan:ISDN, Type:National<br> Called Party Number i = 0x80, '4080'<br> Plan:Unknown, Type:Unknown<br>*Dec 17 20:07:24.830: ISDN Se0/1/1:23 Q931: TX -> RELEASE_COMP pd = 8
<br>callref = 0x80D2<br> Cause i = 0x80A9 - Temporary failure<br>emb3845#<br><br><br>More info on the problem. This router has two local PRI trunks coming in to<br>a 2MFT card. It also has two CAS (E&M Wink) trunks coming into a 2MFT card
<br>for long distance and incoming toll free.<br><br>The two CAS trunks work fine. We are able to get incoming calls via the CAS<br>trunks mentioned above with no problems. Also, we have another gateway<br>configured on the same callmanager in a similiar fashion and all works
<br>fine. This was all working earlier this morning. No known changes occured<br>between when it worked and stopped working.<br><br>Quite an interesting problem, we have TAC on the line now but thought I<br>would see what others think.
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