Among the following videos, the smoothest picture is ()

A large training institution intends to build a set of Huawei video conference system. According to the construction plan, the system must be able to provide one-way live conference function for remote training, when selecting CU equipment, you can consider:

Which organization set the standard of H.323 ? ( )

For SMC2.0 system, if the user forgets the password, the system administrator can reset the password, the important SMC will automatically generate a new password. ( )

() Support creating and joining meetings through IVR.

When MCU using built-in Web management interface upgrade, upgrade file format is ( ).

TE Desktop can import excel format address book. ()

MCU main control board GCCX primarily responsible for video, audio, signaling and other information exchange process, and execute control commands business management center.

Multi-channel cascading, 3 terminals on the main MCU 2Mbps join, from the MCU 3 terminals 3Mbps join, each cascaded channel bandwidth is 2Mbps()

When adding TE series terminals in manageable mode in SHC2.0, the "user name" and "password" in the authentication information must be consistent with the username and password of the terminal () user.

AAC-LD () KHz sampling hi-fi CD quality support dual track.

GE ports and optical ports simultaneously harness, priority GE mouth, but try not to simultaneously harness.

The default H.323 call listening port is ( ).

Regarding the H323 protocol, which of the following descriptions is correct? ()