During a point-to-point number call, the called terminal does not send a call request to GK until it receives setup signaling.
Answer : A
GK must support BRQ, BCF r BRJ messages, and accept all bandwidth modification requests. ( )
Answer : A
Which of the following signaling signalings can the gatekeeper issue address resolution requests to other gatekeepers?
Answer : B
The SIP protocol is the session initiation protocol for establishing, controlling, and releasing sessions. ( )
Answer : A
Which of the following belongs to the extension request ( ).
Answer : A, B, D
The HD terminal provides remote control interface, web management, remote SSH function, and assigns a user name and password to each service.
Answer : A
Multicast is a networking technique that allows one or more senders (multicast sources) to send a single packet to multiple receivers (once, simultaneously).
Answer : A