Polycom RealPresence RMX 4000, Administrator'S Manual

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Defining AVC-Based Conference Profiles
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13 Optional. To video force a participant in a window, select the participant’s name from the drop-down
list of conference participants.
When a participant is forced to a layout window, switching between participants is suspended for that
window and only the assigned participant is viewed. Video Forcing works on Conference Level or
Participant Level:
 Conference Level – When forcing a participant to a window, all conference participants will see
that participant in the selected window.
 Participant Level – When forcing a participant to a window, only the participant’s video layout
display is affected. All other participants see the conference layout.
Video Forcing Guidelines:
 A participant cannot appear in two or more windows at the same time.

Participant level video forcing overrides conference level video forcing.
 In Same Layout mode, participant can view him/herself in a layout window.
 When different size video windows are used in video layouts such as 1+2, 1+3, 1+4, etc., a
participant can only be forced, in Personal Layout, to a video window of the same size as that
selected for him/her in Conference Layout.
 When changing the Video Layout at the conference level, the video forcing settings are not
applied to a new layout, and switching between participants is audio-activated. The video forcing
setting is saved and applied the next time that layout is selected.

Windows that are not assigned any participant display the current speaker and last speakers, but
appear at random.
 Video Forcing doesn’t change the conference profile.
Video Forcing can be implemented through Media Sources Tab when adding a new Conference or a
new Meeting Room.
For information about preventing the MCU from reassigning cells in a forced layout that were
assigned to endpoints that have disconnected through a system flag named
PRESERVE_PARTY_CELL_ON_FORCE_LAYOUT , see System Configuration Flags .