SIP/2.0 404 Not Found
Via: SIP/2.0/UDP nm;branch=foo;received=224.192.147.179;rport=26810;ingress-zone=DefaultZone
Call-ID: 50000
CSeq: 42 OPTIONS
From: <sip:nm@nm>;tag=root
To: <sip:nm2@nm2>;tag=d90c9b9fc6a60606
Server: TANDBERG/4145 (X15.2)
Warning: 399 23.89.192.85:5060 "Policy Response"
Session-ID: 00000000000000000000000000000000;remote=e0e4b79900255000a00007f8150e0000
Content-Length: 0