<div dir="ltr">Interesting. I had to set that setting for the first time ever, when I enabled the new Conference Now IVR in CUCM. I'd never heard of that parameter before then. What are the side affects or negatives with using this param? Or can we just turn it on all the time as best practice, like one might do with OPTIONS PING or Run on All Nodes.*<div><br></div><div>*I realize some speific situations call for other-than-best-practice configuration. YMMV.</div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Jan 12, 2017 at 1:35 PM Pavan Dave (pavdave) <<a href="mailto:pavdave@cisco.com">pavdave@cisco.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple" class="gmail_msg">
<div class="m_7174097729706159510WordSection1 gmail_msg">
<p class="MsoNormal gmail_msg"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="gmail_msg">To piggy back on this, if you are going to be in situations where calls are going on and off hold and transferring, setting duplex streaming to “True” on CUCM will also help.<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="m_7174097729706159510pntnotetable gmail_msg" style="text-indent:.5in"><b class="gmail_msg">Note </b><img width="1" height="2" style="width:.0119in;height:.0238in" id="m_7174097729706159510Picture_x0020_1" src="cid:image002.png@01D26CD8.CAE97940" alt="http://www.cisco.com/c/dam/en/us/td/i/templates/blank.gif" class="gmail_msg">To prevent
the SDP mode from being set to inactive in a multiple-hold scenario, set the Duplex Streaming Enabled clusterwide service parameter (<b class="gmail_msg">System > Service Parameters</b>) to
<em class="gmail_msg">True</em>. <u class="gmail_msg"></u><u class="gmail_msg"></u></p>
<p class="MsoNormal gmail_msg"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="gmail_msg"><a href="http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/8_5_1/ccmsys/accm-851-cm/a08trnk.html#wp1149990" class="gmail_msg" target="_blank">http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/8_5_1/ccmsys/accm-851-cm/a08trnk.html#wp1149990</a>
(Step 10 under Table 41-1)<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="m_7174097729706159510pntnotetable gmail_msg">Regards,<span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="gmail_msg">Pavan Davé<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="gmail_msg">Contact Center TAC Engineer<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="gmail_msg">Cisco Systems – Richardson, TX, USA<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><b class="gmail_msg"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="gmail_msg">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif" class="gmail_msg"> cisco-voip [mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net" class="gmail_msg" target="_blank">cisco-voip-bounces@puck.nether.net</a>]
<b class="gmail_msg">On Behalf Of </b>Anthony Holloway<br class="gmail_msg">
<b class="gmail_msg">Sent:</b> Thursday, January 12, 2017 12:51 PM<br class="gmail_msg">
<b class="gmail_msg">To:</b> Dana Tong <<a href="mailto:dana.tong@yellit.com.au" class="gmail_msg" target="_blank">dana.tong@yellit.com.au</a>>; <a href="mailto:cisco-voip@puck.nether.net" class="gmail_msg" target="_blank">cisco-voip@puck.nether.net</a><br class="gmail_msg">
<b class="gmail_msg">Subject:</b> Re: [cisco-voip] Audio cut-through delays upon transfer<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p></div></div><div lang="EN-US" link="blue" vlink="purple" class="gmail_msg"><div class="m_7174097729706159510WordSection1 gmail_msg">
<p class="MsoNormal gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></p>
<div class="gmail_msg">
<p class="MsoNormal gmail_msg">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.<u class="gmail_msg"></u><u class="gmail_msg"></u></p>
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<p class="MsoNormal gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></p>
</div>
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<p class="MsoNormal gmail_msg">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:<u class="gmail_msg"></u><u class="gmail_msg"></u></p>
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<p class="MsoNormal gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></p>
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<div class="gmail_msg">
<p class="MsoNormal gmail_msg"><span style="font-family:"Courier New"" class="gmail_msg">voice service voip</span><u class="gmail_msg"></u><u class="gmail_msg"></u></p>
</div>
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<p class="MsoNormal gmail_msg"><span style="font-family:"Courier New"" class="gmail_msg"> sip</span><u class="gmail_msg"></u><u class="gmail_msg"></u></p>
</div>
<div class="gmail_msg">
<p class="MsoNormal gmail_msg"><span style="font-family:"Courier New"" class="gmail_msg"> mid-call signaling passthru media-change</span><u class="gmail_msg"></u><u class="gmail_msg"></u></p>
</div>
<div class="gmail_msg">
<p class="MsoNormal gmail_msg"><span style="font-family:"Courier New"" class="gmail_msg">!</span><u class="gmail_msg"></u><u class="gmail_msg"></u></p>
</div>
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<p class="MsoNormal gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></p>
</div>
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<p class="MsoNormal gmail_msg">You can read more about it here:<u class="gmail_msg"></u><u class="gmail_msg"></u></p>
</div>
<div class="gmail_msg">
<p class="MsoNormal gmail_msg"><a href="http://www.cisco.com/en/US/docs/ios-xml/ios/voice/cube_proto/configuration/15-2mt/cube-midcall-reinvite.html" class="gmail_msg" target="_blank">http://www.cisco.com/en/US/docs/ios-xml/ios/voice/cube_proto/configuration/15-2mt/cube-midcall-reinvite.html</a><u class="gmail_msg"></u><u class="gmail_msg"></u></p>
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<p class="MsoNormal gmail_msg"><u class="gmail_msg"></u> <u class="gmail_msg"></u></p>
<div class="gmail_msg">
<div class="gmail_msg">
<p class="MsoNormal gmail_msg">On Wed, Jan 11, 2017 at 10:00 PM Dana Tong <<a href="mailto:dana.tong@yellit.com.au" class="gmail_msg" target="_blank">dana.tong@yellit.com.au</a>> wrote:<u class="gmail_msg"></u><u class="gmail_msg"></u></p>
</div>
<blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in" class="gmail_msg">
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<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:11.0pt" class="gmail_msg">Hi all,</span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:11.0pt" class="gmail_msg"> </span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;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.</span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#434343" class="gmail_msg">There doesn’t appear to be any delays in the signalling.
</span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#434343" class="gmail_msg"> </span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;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.</span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;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.
</span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#434343" class="gmail_msg"> </span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#434343" class="gmail_msg">Has anyone seen this before at all?</span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span class="m_7174097729706159510gmailmsg gmail_msg"><span lang="EN-GB" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#434343" class="gmail_msg"> </span></span><span lang="EN-GB" class="gmail_msg"><u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span lang="EN-GB" class="gmail_msg">Cheers<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span lang="EN-GB" class="gmail_msg">Dana<u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
<p class="MsoNormal gmail_msg"><span lang="EN-GB" class="gmail_msg"> <u class="gmail_msg"></u><u class="gmail_msg"></u></span></p>
</div>
</div>
<p class="MsoNormal gmail_msg">_______________________________________________<br class="gmail_msg">
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<a href="https://puck.nether.net/mailman/listinfo/cisco-voip" class="gmail_msg" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a><u class="gmail_msg"></u><u class="gmail_msg"></u></p>
</blockquote>
</div>
</div></div></blockquote></div>