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<div>Do you have the traces? Calling and called number please :D</div>
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<div>Regards,</div>
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<div>Divin</div>
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<span style="font-weight:bold">From: </span>"Jason Aarons (AM)" <<a href="mailto:jason.aarons@dimensiondata.com">jason.aarons@dimensiondata.com</a>><br>
<span style="font-weight:bold">Date: </span>Thursday, 1 August 2013 11:38 PM<br>
<span style="font-weight:bold">To: </span>Erick Wellnitz <<a href="mailto:ewellnitzvoip@gmail.com">ewellnitzvoip@gmail.com</a>>, cisco-voip <<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [cisco-voip] fast busy when phone CFA via CUBE<br>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">Ah no. Capabilities mismatch requires either MTP/Transcoder.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125); ">You should be able to see in Wireshark your SDP being sent and what codecs to confirm. AVP 0 is G711 and AVP 18 is G729.
<a href="http://en.wikipedia.org/wiki/RTP_Audio_Video_Profiles">http://en.wikipedia.org/wiki/RTP_Audio_Video_Profiles</a><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size: 11pt; font-family: Calibri, sans-serif; ">From:</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif; "> cisco-voip [<a href="mailto:cisco-voip-bounces@puck.nether.net">mailto:cisco-voip-bounces@puck.nether.net</a>]
<b>On Behalf Of </b>Erick Wellnitz<br>
<b>Sent:</b> Thursday, August 01, 2013 10:35 AM<br>
<b>To:</b> cisco-voip<br>
<b>Subject:</b> [cisco-voip] fast busy when phone CFA via CUBE<o:p></o:p></span></p>
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<p class="MsoNormal">I have an issue which is probably very easy to fix but I think I'm making it more complex than I need to.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">I have a Nortel that we are migrating to CUCM 9.1 from. In the interim, we have interated the two using SIP via CUBE. PSTN gateway is H323. I wouldn't normally do this but decisions get made and we have to deal with it.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Call from Nortel to IP Phone works fine. Call forward that same IP Phone to a PSTN number and the call connects to the external number as if nothing was wrong but the Nortel phone gets dropped with a 'fast busy'.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Traces and TAC (626731957) that my colleague opened seem to show a codec /capabilities mismatch but I can't find a codec mismatch in the system at all and our reporting/monitoring tool shows the call trying to connect as G711u on both sides.<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Is this a situation where an MTP is gong to be necessary or is there a way to avoid mandatory MTP?<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Thanks in advance! <o:p></o:p></p>
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<p class="MsoNormal"><br>
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<span style="color:white">itevomcid</span> <o:p></o:p></p>
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