All,<div><br></div><div>I am trying to set up a SIP trunk between CUCM 6.1 and Freeswitch. I only need calls outbound from Cisco to Freeswitch at the moment but am having some difficulties.</div><div><br></div><div>The Cisco side never sends an SDP, either in the INVITE or the ACK, and Freeswitch needs this to operate. I have tried using "require media termination point" and "disable early media" options but there appears to be no difference, which is strange. I include a pastebin of the conversation:</div>
<div><br></div><div><span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; background-color: rgb(255, 255, 255); "><a href="http://pastebin.com/T3eqms8N" target="_blank" style="color: rgb(6, 88, 181); ">http://pastebin.com/T3eqms8N</a></span></div>
<div><br></div><div>and a couple of screenshots of the CUCM config for the trunk.</div><div><br></div><div><a href="http://img200.imageshack.us/img200/9405/siptrunk.png">http://img200.imageshack.us/img200/9405/siptrunk.png</a></div>
<div><br></div><div><a href="http://img191.imageshack.us/img191/3863/sipprofile.png">http://img191.imageshack.us/img191/3863/sipprofile.png</a></div><div><br></div><div>Any thoughts on where to start looking? I was wondering if CUCM will continue to attempt the call if there is a problem with the MTP( I am using software MTP on CUCM at the moment). If this is the case then I can see why the SDP does not appear in the INVITE (assuming the MTP is broken), but not why it does not appear in the ACK.</div>
<div><br></div><div>Thanks in advance.</div><div><br></div><div>David</div>