In the conference call flow, the tasks of the H.245 Competency Negotiation section are ().

Negotiate the video codec protocol

Negotiate whether to negotiate the H.323 protocol or the SIP protocol

Negotiate the video codec protocol

In peer-to-peer meetings, the distal image of T1 is blue and T2 is normal, possibly because of ().

Decoding question answer for T2

Multi-functional conference table

The recorded video and audio protocol of the recorded meeting and the video and audio protocol of the playback are inconsistent

The video-audio format of the recorded meeting and the video-audio format of the playback are inconsistent with

The recorded video and audio protocol of the recorded meeting and the video and audio protocol of the playback are inconsistent

The video-audio format of the recorded meeting and the video-audio format of the playback are inconsistent with

Hardware requirements for recording and broadcasting servers

The ethernet port is transmitting data

Corresponding to the Gigabit Ethernet port

of the back panel The Network Port connection is normal

The ethernet port is transmitting data

Closer to the original sound effect

A.

323 Which organization developed the standard ().

B.

ITU_T

C.

IEEE

D.

NSI

E.

ISO