SIP/2.0 200 OK
Via: SIP/2.0/UDP nm;branch=foo
Contact: <sip:7992242@78.132.79.10:5060>
To: <sip:nm2@nm2>;tag=7a82b8bf
From: <sip:nm@nm>;tag=root
Call-ID: 50000
CSeq: 42 OPTIONS
User-Agent: CareIP 7992242 v1.3.2.4
Content-Type: application/sdp
Content-Length: 189

v=0
o=- 0 0 IN IP4 78.132.79.10
s=CareTech RTP-stack
c=IN IP4 78.132.79.10
t=0 0
m=audio 10000 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15