SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.2.135:5060;rport=5060;branch=z9hG4bK160355227
From: <sip:34020000002000000001@3402000000>;tag=922355227
To: <sip:34020000001320000264@3402000000>;tag=1587723040
Call-ID: 633355227
CSeq: 18 MESSAGE
User-Agent: IP Camera
Content-Length: 0