U 2010/06/27 18:46:38.236142 220.224.129.21:5060 -> 87.106.166.145:5060
SIP/2.0 183 Session Progress.
Via: SIP/2.0/UDP 87.106.166.145;branch=z9hG4bK776b.e75322f4.0.
Via: SIP/2.0/UDP 66.234.138.73:5061;received=66.234.138.73;branch=z9hG4bKa9617065067df792e26a5ed65105dad0;rport=5061.
From: <sip:18182557014@66.234.138.73>;tag=cb03c668354a2033d2da31f4f053bb0f.
To: <sip:37410546747@87.106.166.145>;tag=97.56.30.751064+1+72cb0041+305c70f4.
Call-ID: BB2ECAED-814A11DF-8DD39643-3FD0180@66.234.138.68.
CSeq: 200 INVITE.
Record-Route: <sip:87.106.166.145;lr=on>.
Server: DC-SIP/2.0.
Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, PRACK, INFO, REFER, UPDATE.
Contact: <sip:37410546747@220.224.129.21:5060;transport=udp>.
Expires: 300.
Content-Type: application/sdp.
Content-Length: 200.
.
v=0.
o=- 3486649596 3486649596 IN IP4 220.224.129.21.
s=-.
c=IN IP4 220.224.129.21.
t=0 0.
m=audio 41456 RTP/AVP 0 13.
a=ptime:20.
a=rtpmap:0 PCMU/8000.
a=rtpmap:13 CN/8000.
a=silenceSupp:on - - - -.