Question 11
Video conferencing has certain requirements for lamps, and the lamps used require strong light efficiency, uniform and soft light, and make full use of diffuse reflection.
Question 12
Shown in the figure is an example of a message in the RTCP protocol ( ).
Question 13
Common SIP calls the SDP negotiation process includes (). (3 answers).
Question 14
Adhoc meetings are instant meetings, users can activate the meeting and join the meeting on the terminal side, and the operation process has video and audio prompts.
Question 15
The HD terminal provides remote control interface, web management, remote SSH function, and assigns a user name and password to each service.