SIP/2.0 404 Not Found
Call-ID:50000
Content-Length:0
CSeq:42 OPTIONS
From:<sip:nm@nm>;tag=root
To:<sip:nm2@nm2>;tag=7d-381772669
User-Agent:Home&Life HUB/1.1.26.00
Via:SIP/2.0/UDP nm;rport=26810;received=224.250.4.140;branch=foo