Which of the following messages indicates that the SIP server failure could not complete the processing of the correct message. ( )
The software format for HD video terminal upgrades is ( ).
In the Early state, the caller can end dialog0 by sending ( ).
RRJ sendto [ ( 218.5.64.98:18616 )] [5928509444] [[0x00000065:err reg wrong account or passwork]] From the above logs, you can tell that the reason for the failure of registration is ( ).
The following socket on the MCU is the default service network port. ()
Under static NAT networking, the SRC address of the terminal under the private network changes to ().
The MCU node number after the meeting, consisting of ( ).
The SIP protocol is a ( ) protocol.
The following description of the relationship between the RTCP port number and the RTP port number is correctly ( ).
Intelligent control system includes video system, audio system and others, which of the following does not belong to the video system. ( )
931 Loaded on the ( ) layer.
The color temperature range for warm colors is ( ).
H.460 In networking, the communication between the terminal and the clientGK follows the protocol ( ).
Which of the following is part of the conference room design ( ).
The color rendering index affects the color of the video image. ( )
