Which of the following protocols belongs to the encapsulated transport protocol ( ).
Answer : A, B, C
What does the response message "1xx" in the SIP protocol mean?
Answer : D
Which of the following is not included in the main functions of the gateway gateway?
Answer : D
[Judgment Questions].
Video IVR, on the basis of audio IVR, adds a video interactive interface, which can more easily and intuitively guide users to join a conference or create a conference on the terminal side. ()
Answer : A
At what level is the SIP protocol located?
Answer : C
At what protocol layer does NAT primarily work? ( )
Answer : D
After the endpoint enables the NAT setting, it can change the packet content and can be used for static NAT networking mode and DNAT/NAPT networking mode.
Answer : B