REGISTER sip:[serverip] SIP/2.0
CSeq:[seq] REGISTER
Call-ID:[callid]@[myip]
User-Agent:CtiAgent/1.0.0
Max-Forwards:70
Via:SIP/2.0/UDP [myip]:[myport]
From:<sip:[myno]@[serverip]>;tag=[tag]
To:<sip:[myno]@[serverip]>
Contact:<sip:[myno]@[myip]:[myport]>;expires=[expire]
Authorization:Digest username="[uid]",realm="[realm]",nonce="[nonce]",uri="sip:[serverip]",response="[response]",algorithm=MD5,opaque=""
Expire:[expire]
Content-Length:0

