INVITE sip:6500@192.168.36.180:5060;user=phone SIP/2.0
Via: SIP/2.0/UDP blah:blah
From: 6400<sip:6400@192.168.36.80:5060>
To: 6500<sip:6500@192.168.36.180:5060;user=phone>
Call-ID: 247515495@192.168.36.80
CSeq: 1 INVITE
Subject: VovidaINVITE
Contact: <sip:6400@192.168.36.80:5060>
Content-Length: 0
