<--- SIP read from 65.110.29.195:5060 --->
REGISTER sip:seattle.voip.ms SIP/2.0
Via: SIP/2.0/UDP 10.0.1.2:5060;branch=z9hG4bK2bd11f9f;rport
Max-Forwards: 70
From: <sip:125209@seattle.voip.ms>;tag=as1510d8c7
To: <sip:125209@seattle.voip.ms>
Call-ID: 4d39b6b62227fa7c1108b5ec04f9406d@127.0.0.1
CSeq: 115 REGISTER
User-Agent: Asterisk PBX 1.6.2.13
Expires: 120
Contact: <sip:s@10.0.1.2>
Content-Length: 0