<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">CSCsc64303 shows it was fixed in 4.1(3)ES64 which was posted June 22 of 2006. My best guess is that this fix did make it into 4.2. There was also a slightly different description for that bug, where a call was up between a Cisco and Nortel phone and the Nortel phone transferred the call to a second Nortel phone. It's not a big difference but it is different.<div><br></div><div>You'd have to look at traces to see when the Nortel sends the updated RTP information (SIP SDP) and if CCM actually tells the phone of the new RTP destination or not.</div><div><br><div> <p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="3" style="font: 12.0px Helvetica">-Ryan</font></p> </div><br><div><div>On Sep 8, 2008, at 12:49 PM, Aman Chugh wrote:</div><br class="Apple-interchange-newline"><div dir="ltr"><div>Ok, I am little confused as per the interoperability portal ,It mentions that call transfers work between Nortel CS1K running release 4 and CM 4.1 .</div> <div> </div> <div>Then I found CSCsc64303 which says call transfer results in No audio and is fixed in CM 5. If Cisco guys can verify that I am hitting this it would help.</div> <div> </div> <div>Aman<br><br></div> <div class="gmail_quote">On Mon, Sep 8, 2008 at 9:56 PM, Aman Chugh <span dir="ltr"><<a href="mailto:aman.chugh@gmail.com">aman.chugh@gmail.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"> <div dir="ltr"> <div> </div> <div>I have integration between Nortel CS 1000 running release 5 and CallManager 4.2 sr4 , I am able to make calls between Nortel and Cisco Ip phones. The issue occurs when ever a call between two nortel phones is transferred to a cisco IP phone over the SIP trunk , I have no audio between Cisco and Nortel. I am using G711 codec over the SIP trunk. The Cisco IP Phone rings and the call is established but have no audio either side. I can see the SIP invite message and ACK messages in the CCM trace but not sure what I am missing here. </div> <div> </div> <div>TIA</div> <div> </div><font color="#888888"> <div>Aman</div></font></div></blockquote></div><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">cisco-voip mailing list</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a></div> </div><br></div></body></html>