Cisco Unified border element is configured to support RSVP-based CAC. When is the RSVP path and reservation message sent and received?
A.
Immediately after the call setup message is received and the reservation message is received after H.245 capabilities negotiation is completed.
B.
The path and reservation messages are sent and received after the H.245 capabilities negotiation is completed.
C.
The path and reservation messages are sent and received immediately after the call setup message is received.
D.
The path is setup once the global command call rsvp-sync is configured.