A dialog is uniquely identified by Call-ID, From tag, and To tag. Once a dialog is established, the three identifier cannot be changed. ( )
A. TRUE
B. FALSE
An MCU belongs to one service areas. A service area can have multiple MCUs. ( )
A. TRUE
B. FALSE
In the following descriptions, which are belong to audio mixing policies. ( ) (Select 3 answers)
A. Audio mixing is performed for the several channels with large sound, to prevent noise.
B. Audio mixing is performed for the several channels with small sound, to prevent noise.
C. The sound can be prevented from sending to an endpoint
D. You can configure the system not to process sound from one endpoint
The MP can provide the following functions.( ) (Select 2 answers) A. Stream forwarding
B. Call
C. Rate adaptation
D. Conference control
For Response Messages, 3XX meansO-
A. Indicates that the request is received and under processing
B. Indicates that the response is received and successfully processes.
C. Indicates that further operations are required to complete this request.
D. Indicates that the server is faulty and consequently cannot process correct messages.
The signaling "setup" means the calling endpoint sends a call request to the called endpoint.( )
A. TRUE
B. FALSE
The audio test on the video terminal checks whether the audio output of the video terminal is correct. ( )
A. TRUE
B. FALSE
ARQ carries information about the MCU including the IP address and port number and number about the endpoint to be called.( )
A. TRUE
B. FALSE
The MCU needs to decode videos of all endpoints involved in the continuous presence, code the video into one channel of video, and transmit the video to all endpoints that need to view the continuous presence.( )
A. TRUE
B. FALSE
A GK responds to a gateway's access authentication and address resolution request with a/an ( ) message for request rejection with resolution results.
A. RRJ
B. GRJ
C. URJ
D. ARJ
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