A.Secondary 2-way, mainstream 2-way

B.Secondary 3-way, mainstream 1-way

C.Subflow 1 way, mainstream 3 way

D.Mainstream 4 each

A.SNC2.0 supports up to 5 levels of cascading conference templates,Meet the needs of government departments and other multi-administrative conferences.

B.Multi-level conferences support splitting and merging conferences.

C.When a multi-level conference is held, the root conference can be "added to add a venue" operation.

D.When holding a multi-level conference, you cannot set up multi-screen polling for a certain site in a sub-conference.

A.Conference Monitoring

B.Resource Monitoring

C.System Monitoring

D.Device Monitoring

A.All of the above

B.4E1

C.IP

D.E1

A.Desktop installation

B.Bracket installation

C.Flip

D.Wall installation