U 10.211.55.2:5002 -> 10.0.0.1:5060
REGISTER sip:vorpalcloud.org SIP/2.0.
CSeq: 9 REGISTER.
Via: SIP/2.0/UDP 10.211.55.2:5002;branch=z9hG4bK66b522de-38be-db11-8df0-f0ed0a1e4fe9;rport.
User-Agent: XMeeting/0.3.4.
From: <sip:storm@vorpalcloud.org>;tag=02b022de-38be-db11-8df0-f0ed0a1e4fe9.
Call-ID: aabe461d-38be-db11-8df0-f0ed0a1e4fe9@ecco.vorpalcloud.org.
To: <sip:storm@vorpalcloud.org>.
Contact: <sip:storm@10.211.55.2:5002;transport=udp>.
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,NOTIFY,REFER,MESSAGE,INFO,PING.
Expires: 3600.
Content-Length: 0.
Max-Forwards: 70.