When a user attempts to sign with a Jabber Video for Cisco Telepresence, which SIP message is the first that is sent?
A. REGISTER
B. NOTIFY
C. SUBSCRIBE
D. INFO
When a user attempts to sign with a Jabber Video for Cisco Telepresence, which SIP message is the first that is sent?
A. REGISTER
B. NOTIFY
C. SUBSCRIBE
D. INFO