REGISTER sip:bell-tel.com SIP/2.0
Via: SIP/2.0/UDP saturn.bell-tel.com
From: <sip:watson@bell-tel.com>;tag=19
To: sip:watson@bell-tel.com
Call-ID: 70710@saturn.bell-tel.com
CSeq: 2 REGISTER
Content-Type: application/sdp
Expires: 0
Contact: *

v=0
o=- 12sc33.atla3456 654321 ININ IP4 167.1.1
t=0 0
m=audio 8000 RTP/A0
