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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We’re dialing a disconnected number via Level 3’s
vector network, and are receiving this. The response has SDP in it. Apparently,
Level 3 is playing early media. Asterisk doesn’t seem to know what to do
with SDP in a 180 RINGING, and just plays ringing. What am I missing here? How
can Asterisk see there’s SDP, early media, in the response and act
accordingly?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>SIP/2.0 180 Ringing.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>Via: SIP/2.0/UDP xxx.yyy.34.195:5060;branch=z9hG4bK591743a1;rport=5060.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>From: "Test Phone
2" <sip:+19256002182@xxx.yyy.34.195>;tag=as7e76044e.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>To:
<sip:+12059512018@4.55.16.99>;tag=gK0cc2d5ab.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>Call-ID:
4d1db18c7d86e9e733f9f8b64c28c020@xxx.yyy.34.195.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>CSeq: 102 INVITE.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>Contact:
<sip:+12059512018@4.55.16.99:5060>.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>Allow:
INVITE,ACK,CANCEL,BYE,PRACK,UPDATE,OPTIONS.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>Content-Length:
231.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>Content-Disposition:
session; handling=required.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>Content-Type:
application/sdp.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>v=0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>o=Sonus_UAC 22562
17424 IN IP4 4.55.16.99.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>s=SIP Media
Capabilities.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>c=IN IP4 4.55.16.66.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>t=0 0.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>m=audio 6288 RTP/AVP 0
101.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>a=rtpmap:0 PCMU/8000.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>a=rtpmap:101
telephone-event/8000.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>a=fmtp:101 0-15.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>a=sendrecv.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#339966" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#339966'>a=maxptime:20.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Doug.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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