Polycom RealPresence 1500 Administrator's Manual page 88

Auto Layout – Default Layouts in CP Conferences
Number of Video Participants
0–2
3
4–5
6–7
8-10
11
12+
In layout 2+8, the two central windows display the last two speakers in the conference: the current
speaker and the "previous" speaker. To minimize the changes in the layout, when a new speaker is
identified the "previous" speaker is replaced by the new speaker while the current speaker remains
in his/her window.
Polycom®, Inc.
Auto Layout Default Settings
Defining AVC-Based Conference Profiles
58