<div dir="ltr">This sounds like the old too-many-messages-are-required-to-make-the-transfer-happen scenario.  Ok, I just made up that name, but basically the SIP messages are just busy doing whatever SIP messages do, to make the transfer happen.  From stopping media, to invoke MOH, to tearing down MOH, to transferring, to establishing media, it's just a lot, and takes a long time.<div><br></div><div>You can cut down on the amount of messages in a few ways, but the one I see used most often is the command on the CUBE:</div><div><br></div><div><font face="monospace">voice service voip</font></div><div><font face="monospace"> sip</font></div><div><font face="monospace">  mid-call signaling passthru media-change</font></div><div><font face="monospace">!</font></div><div><br></div><div>You can read more about it here:</div><div><a href="http://www.cisco.com/en/US/docs/ios-xml/ios/voice/cube_proto/configuration/15-2mt/cube-midcall-reinvite.html">http://www.cisco.com/en/US/docs/ios-xml/ios/voice/cube_proto/configuration/15-2mt/cube-midcall-reinvite.html</a><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, Jan 11, 2017 at 10:00 PM Dana Tong <<a href="mailto:dana.tong@yellit.com.au">dana.tong@yellit.com.au</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">







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<div class="m_-8811615734268575318WordSection1 gmail_msg">
<p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg">Hi all,<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:11.0pt" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:9.0pt;font-family:Arial;color:#434343" class="gmail_msg">I have a customer who is reporting a (one-way) audio delay after transferring calls with Cisco Jabber. They are almost all soft-phone users.<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:9.0pt;font-family:Arial;color:#434343" class="gmail_msg">There doesn’t appear to be any delays in the signalling.
<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:9.0pt;font-family:Arial;color:#434343" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:9.0pt;font-family:Arial;color:#434343" class="gmail_msg">I’ve just asked them to clarify if this is for all calls or just external calls. PSTN access is via CUBE which is configured for early offer.<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:9.0pt;font-family:Arial;color:#434343" class="gmail_msg">When I tested I couldn’t see a problem but the customer insists that there is a delay for media being transmitted to the person who receives the transferred
 call. <u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:9.0pt;font-family:Arial;color:#434343" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:9.0pt;font-family:Arial;color:#434343" class="gmail_msg">Has anyone seen this before at all?<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:9.0pt;font-family:Arial;color:#434343" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg">Cheers</p>
<p class="MsoNormal gmail_msg">Dana</p>
<p class="MsoNormal gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></p>
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