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<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959">What’s the IOS version of the CUBE?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959">After the transfer of the call, when there is on-way audio, if you do a Hold and Resume on the IP Phone, does this solve the problem of one way audio?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959">When you do a show voip rtp connection on the CUBE, do you see it transmit RTP to the older phone IP even after the transfer?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959">We’ve seen deployments of CUBE where it does CUCM --- EO --- CUBE --- DO ---- ITSP and blind transfers result in one-way audio. There are also ringback issues.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959">Is it a delayed offer from CUCM to CUBE?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959">If so, I’d suggest you to navigate to SIP Profiles on CUCM and check the following box, and try the call again.<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.5pt">Early Offer support for voice and video calls (insert MTP if needed)<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959">Sreekanth<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:#595959"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Dana Tong [mailto:Dana_Tong@bridgepoint.com.au]
<br>
<b>Sent:</b> Wednesday, April 30, 2014 2:01 PM<br>
<b>To:</b> Sreekanth Narayanan (sreenara)<br>
<b>Subject:</b> RE: One-way audio after BLIND transfer to SIP Trunk<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU" style="color:#1F497D">Thanks. Will try this now.
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU" style="color:#1F497D">It’s not invoking an MTP. But even so there are MTP resources on the CUBE.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU" style="color:#1F497D">Will let you know how I get on.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU" style="color:#1F497D"><br>
Cheers<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU" style="color:#1F497D">Dana<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Sreekanth Narayanan (sreenara) [<a href="mailto:sreenara@cisco.com">mailto:sreenara@cisco.com</a>]
<br>
<b>Sent:</b> Wednesday, 30 April 2014 6:26 PM<br>
<b>To:</b> Dana Tong; <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a> (<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>)<br>
<b>Subject:</b> RE: One-way audio after BLIND transfer to SIP Trunk<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.5pt;color:#595959">Hi Dana,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.5pt;color:#595959"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.5pt;color:#595959">Have you tried to take packet captures from the back of the phone and see if the stream is reaching the phone from the remote-end?<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.5pt;color:#595959">If there is no MTP/Xcoder invoked, you will see the RTP stream coming directly from the CUBE (assuming that cube is in flow-through mode).<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.5pt;color:#595959"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.5pt;color:#595959">If the SIP traces look fine and IP and ports are exchanged correctly, it’s usually something in the network that’s not letting the RTP stream pass between the phone and
the other end.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.5pt;color:#595959"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.5pt;color:#595959">Thanks<br>
Sreekanth<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><span style="font-size:10.5pt;color:#595959"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:1.0in"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","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>Dana Tong<br>
<b>Sent:</b> Wednesday, April 30, 2014 1:45 PM<br>
<b>To:</b> <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a> (<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>)<br>
<b>Subject:</b> [cisco-voip] One-way audio after BLIND transfer to SIP Trunk<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-left:1.0in"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">Good evening all,<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">A colleague and myself have discovered an issue where a Blind transfer has one-way audio.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">The scenario is as follows:<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">IP Phone to IP phone call<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">Transfer to off-net mobile via SIP Trunk (via CUBE)<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">Blind Transfer<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">When the remote person answers the phone, there is audio heard on the remote party, but nothing on the IP phone.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">The SIP trace SDP appears OK. The IP addresses seem to be c=IN IP is correct.
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">The web page for the phone reports Stream = Not Ready.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">Does anyone have any tips or thoughts on this issue? Have tried a number of config changes with respect to supplementary services on the CUBE, and MTP etc on the CUCM Trunk.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU"><br>
Cheers<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU">Dana<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:1.0in"><span lang="EN-AU"><o:p> </o:p></span></p>
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