NOTIFY sip:sip@pfnguyen.best.vwh.net:5060 SIP/2.0
From: <sip:sip@ares.gofti.com>
To: <sip:sip@pfnguyen.best.vwh.net>
Event: check-sync
Date: Wed, 18 Aug 2004 17:09:23 -0700
Call-ID: 79d0b621da64dba86827e013f659b4c1@ares.gofti.com
CSeq: 1300 NOTIFY
Contact: <sip:sip@ares.gofti.com>
Content-Length: 0