U 2013/10/18 18:03:06.386867 79.109.112.3:5063 -> 5.13.14.16:5060
INVITE sip:979721729@5.13.14.16:5060 SIP/2.0.
Via: SIP/2.0/UDP 79.109.112.3:5063;rport;branch=z9hG4bKPjWlwXQ-RNFY4qN7iIF8E.VbbB5CkXl1N3.
Max-Forwards: 70.
From: "CABINA 3" <sip:99892323163@5.13.14.16:5060>;tag=mqxNUe.NtzyN-czH2lvbhKfpY4v5eLkt.
To: <sip:979721729@5.13.14.16:5060>.
Contact: <sip:99892323163@79.109.112.3:5063;transport=UDP>.
Call-ID: W.DIh-0TaT4nfVsKPXSGZd8FMQauOn3Z.
CSeq: 7548 INVITE.
Allow: INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, SUBSCRIBE, NOTIFY, REFER, OPTIONS, MESSAGE.
Supported: replaces, 100rel.
User-Agent: AT810 V2.2.0.
Content-Type: application/sdp.
Content-Length:   258.
.
v=0.
o=ATCOM 3591104586 3591104586 IN IP4 192.168.1.20.
s=ATCOM Audio Call.
c=IN IP4 192.168.1.20.
t=0 0.
m=audio 13042 RTP/AVP 18 101.
c=IN IP4 192.168.1.20.
a=sendrecv.
a=rtpmap:18 G729/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=ptime:20.