SDP (Session Description Protocol) is a transport layer control protocol used to describe multimedia sessions.

In a one-way live conference scenario, the TE60 can be used as an auditor to connect to the conference.()

The default value for the conference service number is ()

In cascading meetings, meeting control operations on subordinate venues are not supported. ()

Radio and television is a one-way transmission and cannot communicate with each other, while video conferencing can be transmitted in both directions and communicate with each other "face to face". ()