First off whats the config?<br><br>Versions?<br>MGCP, H323, SIP?<br><br>It sounds like somewhere along the line someone is properly responding to the CONNECT-ACK message<br><br>Craig<br>
<br><br><div class="gmail_quote">On Sat, Dec 19, 2009 at 10:10 AM, Huffman, Tim <span dir="ltr"><<a href="mailto:thuffman@rosettastone.com">thuffman@rosettastone.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">I haven’t yet been able to re-create the issue, but if the
problem is on my side, what would be some things I need to check on?</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);">Thanks,</span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><i><span style="font-size: 13.5pt; color: rgb(31, 73, 125);">Tim Huffman</span></i><span style="color: rgb(31, 73, 125);"></span></p>
<p class="MsoNormal"><span style="font-size: 11pt; color: rgb(31, 73, 125);"> </span></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span style="font-size: 10pt;"> <a href="mailto:cmstaffin@gmail.com" target="_blank">cmstaffin@gmail.com</a>
[mailto:<a href="mailto:cmstaffin@gmail.com" target="_blank">cmstaffin@gmail.com</a>] <b>On Behalf Of </b>Craig Staffin<br>
<b>Sent:</b> Saturday, December 19, 2009 9:41 AM<br>
<b>To:</b> Huffman, Tim<br>
<b>Cc:</b> <a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b> Re: [cisco-voip] Random call disconnects</span></p>
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<p class="MsoNormal" style="margin-bottom: 12pt;">Tim,<br>
<br>
ON a call that is having the issue run a Debug ISDN q931. Watch and see
if the Disconnect is a TX or RX. If it is TX then it is in fact your
issue. If it is a RX then it is a carrier issue.<br>
<br>
<br clear="all">
Craig Staffin<br>
<br>
<br>
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<p class="MsoNormal">On Sat, Dec 19, 2009 at 8:11 AM, Huffman, Tim <<a href="mailto:thuffman@rosettastone.com" target="_blank">thuffman@rosettastone.com</a>>
wrote:</p>
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<p class="MsoNormal">We
have a single CUCM with one 2821 VGW and one E1 PRI in our UK office.
We’re seeing issues with random call disconnects. About 25% of the time,
a call will drop within a minute. The call connects, you can talk to the
person on the other end, you then hear dead silence on our end and the person
on the other end gets a fast busy. After checking all of the config
settings we believe it’s a carrier issue, but the carrier claims the
disconnects are coming from our system. Is there anything I can do to
confirm where the problem is?</p>
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<p class="MsoNormal">Thanks,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><i><span style="font-size: 13.5pt; color: rgb(31, 73, 125);">Tim Huffman</span></i></p>
<p class="MsoNormal"> </p>
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<p class="MsoNormal" style="margin-bottom: 12pt;"><br>
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