Question 41
Horizontal viewing is the angle between the audience's eyebrows and the ends of the screen in a horizontal direction.
Question 42
T.140 Subtitles support sending and receiving subtitles from SIP, H.323 type terminals.
Question 43
Which of the following in the header domain is used to represent the SIP entity through which the request passes and the route response?
Question 44
The MCU node number after the meeting, consisting of ( ).
Question 45
Under the H. 323 protocol, the signaling required to complete the master-slave decision process is. ( )