Polycom RMX 1500 Administrator's Manual page 161

When Lecturer View Switching is activated, it enables automatic switching
between the conference participants in the lecturer's video window. The
switching in this mode is not determined by voice activation and is
initiated when the number of participants exceeds the number of
windows in the selected video layout. In this case, when the switching is
performed, the system refreshes the display and replaces the last active
speaker with the current speaker.
When one of the participants is talking, the automatic switching is
suspended, showing the current speaker, and it is resumed when the
lecturer resumes talking.
If the lecturer is disconnected during an Ongoing Conference, the
conference resumes standard conferencing.
Forcing is enabled at the Conference level only. It applies only to the
video layout viewed by the lecturer as all the other conference
participants see only the lecturer in full screen.
If an asymmetrical video layout is selected for the lecturer (i.e. 3+1, 4+1,
8+1), each video window contains a different participant (i.e. one cannot
be forced to a large frame and to a small frame simultaneously).
When Lecture Mode is enabled for the conference, the lecturer is indicated
by an icon ( ) in the Role column of the Participants list.
Participant designated as the
Lecturer
To control the Lecture Mode during an Ongoing Conference:
During the Ongoing Conference, in the Conference Properties - Video
Settings dialog box you can:
• Enable or disable the Lecture Mode and designate the conference
lecturer in the Lecturer list; select None to disable the Lecture Mode or
select a participant to become the lecturer to enable it.
Polycom RMX 1500/2000/4000 Administrator's Guide
2-99