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User’s Guide for Polycom HDX Desktop Systems
Polycom, Inc. 27
Using Chair Control for Multipoint Calls
During some multipoint calls, you can use chair control to manage the video.
In this type of call, the chair controller can choose the site whose video is sent
to other sites in the conference. The chair controller can also disconnect a site
or end the conference. Any participant can choose to view a specific site,
request to be the broadcaster, or request to be chair controller.
Only one site at a time can be the chair controller. Before a site can become the
controller, the site with control must give up control.
Setting Description
Video images from multiple sites can be automatically combined on one monitor in
a display known as continuous presence.
Auto The view switches between continuous presence and
full screen, depending on the interaction between the
sites.
If multiple sites are talking at the same time,
continuous presence is used. If one site speaks
uninterrupted for at least 15 seconds, that site appears
in full screen on the monitor.
Discussion Multiple sites are displayed in continuous presence.
The current speaker’s image is highlighted.
Presentation The speaker sees continuous presence while the other
sites see the speaker in full screen on the monitor.
Full Screen The site that is speaking is shown in full screen to all
other sites. The current speaker sees the previous
speaker.