MESSAGE sip:x@bat.iptel.org SIP/2.0
Via: SIP/2.0/UDP bat.iptel.org:9
From: sip:msilo@iptel.org;tag=16df4fe56e8782ecaa5d53ae36fb9240
To: sip:dcm@iptel.org
Call-ID: 02b1191c-447e-4bd0-b771-c039fc0d9d84@195.37.78.169
CSeq: 7 MESSAGE
Contact: <sip:195.37.78.169:11457>
User-Agent: Windows RTC/1.0
text/plain
Content-Length: 013

one two three