INVITE sip:9198@172.18.1.72 SIP/2.0
Via: SIP/2.0/UDP 172.16.254.24;rport;branch=z9hG4bKrebupeuh
Max-Forwards: 70
To: <sip:9198@172.18.1.72>
From: "zecke" <sip:1000@sysmocom.de>;tag=wmycl
Call-ID: ofcwnpmulmceasg@xiaoyu
CSeq: 982 INVITE
Contact: <sip:1000@172.18.254.25>
Content-Type: application/sdp
Allow: INVITE,ACK,BYE,CANCEL,OPTIONS,PRACK,REFER,NOTIFY,SUBSCRIBE,INFO,MESSAGE
Supported: replaces,norefersub,100rel
User-Agent: Twinkle/1.4.2
Content-Length: 310

v=0
o=twinkle 2038576622 441641029 IN IP4 172.18.254.24
s=-
c=IN IP4 172.18.254.24
t=0 0
m=audio 8000 RTP/AVP 98 97 8 0 3 101
a=rtpmap:98 speex/16000
a=rtpmap:97 speex/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20