( )defines between the call signaling (Q.931) and node and GK(RAS)

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When you log in to the web page of the MCU, the ip address of the () port is entered by default.

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The venue terminal can through calling the ( ) to join the meeting

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Multifunction Telepresence main scenario( )

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The Video Systerm is a new generation of interactive multimedia communication system, which is set ( ), ( ) and ( ) at one unit. It is a kind of value added service based on the communications network. (Please choose 3 answers)

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