( ) Achieves the Switching Between the Number, Name, Etc

Q46: Use intelligence system to send conference double

Q47: What is the main function of the

Q48: Which of the following way of upgrade

Q49: Which of the following can realize face

Q50: Each system must have operating billing system.

Q52: HD terminal setup wizard can complete the

Q53: Large capacity multipoint generally cross-regional, level larger

Q54: How many service slots the MCU8660 supported?<br>A)

Q55: What is high-definition video input terminal interface

Q56: In H.323 systems, which of the following