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VCE
In the converged conference MCU central networking mode, what method does the eSpace PC support to join the conference directly with the chairman authority? () (multiple choice)
A. Key in the conference list
B. Dial in
C. Join by email link
D. Invitation from outside
Regarding the upgrade method of eSpace IP phones, which of the following statements is correct () Multiple choice
A. Support unified upgrade on the U1900 series unified gateway web management interface
B. Support automatic upgrade
C. Support single upgrade on the eSight interface
D. Support manual upgrade
RSE6500 supports synchronous recording of three screens and telepresence for synchronous playback. The correct description of its implementation principle is () (single choice)
A. The three-screen telepresence synthesizes a three-screen by itself, and then sends RSE to record
B. Three-screen telepresence directly sends three streams to RSE for recording
C. With the help of MCU, the three-screen telepresence is combined into a three-screen, and then sent to RSE for recording
D. With the help of an analog video synthesizer, the three-screen telepresence is combined into a three-screen, and then sent to RSE for recording