INVITE sip:100@192.168.0.230 SIP/2.0
Via: SIP/2.0/UDP 192.168.0.202:5060;rport;branch=z9hG4bK435
From: <sip:telefon1@192.168.0.230>;tag=26257
To: <sip:100@192.168.0.230>
Call-ID: 23149
CSeq: 20 INVITE
Contact: <sip:telefon1@192.168.0.202:5060>
Content-Type: application/sdp
Max-Forwards: 70
User-Agent: Linphone/3.2.0 (eXosip2/3.3.0)
Subject: Phone call
Content-Length: 319
v=0
o=telefon1 123456 654321 IN IP4 192.168.0.202
s=A conversation
c=IN IP4 192.168.0.202
t=0 0
m=audio 7078 RTP/AVP 111 110 0 3 8 101
a=rtpmap:111 speex/16000/1
a=rtpmap:110 speex/8000/1
a=rtpmap:0 PCMU/8000/1
a=rtpmap:3 GSM/8000/1
a=rtpmap:8 PCMA/8000/1
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-11