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Chapter 3-Video Protocols and Resolution Configuration for CP Conferencing
Polycom, Inc. 3-15
Flag Settings
Setting the Maximum CP Resolution for Conferencing
The MAX_CP_RESOLUTION flag value is applied to the system during First-time Power-up
and after a system upgrade. The default value is HD1080.
All subsequent changes to the Maximum CP Resolution of the system are made by selections
in the Max CP Resolution pane of the Resolution Configuration dialog box.
Minimum Frame Rate Threshold for SD Resolution
The MINIMUM_FRAME_RATE_THRESHOLD_FOR_SD System Flag can be added and
set to prevent low quality, low frame rate video from being sent to endpoints by ensuring
that an SD channel is not opened at frame rates below the specified value. For more
information see "Modifying System Flags” on page 20-1.
Additional Video Resolutions
The following higher video quality resolutions are available with the Collaboration Server
• CIF 352 x 288 pixels at 50 fps.
• WCIF 512 x 288 pixels at 50 fps.
• WSD 848 x 480 pixels at 50 fps.
• W4CIF 1024 x 576 pixels at 30 fps.
• HD 720p 1280 x 720 pixels at 60 fps.
• HD 1080p 1920 x 1080 pixels at 30 fps.
• HD 1080p 1920 x 1080 pixels at 60 fps.
Two higher quality, intermediate video resolutions replace the transmission of CIF (352 x
288 pixels) or SIF (352 x 240 pixels) resolutions to endpoints that have capabilities between:
• CIF (352 x 288 pixels) and 4CIF (704 x 576 pixels) – the resolution transmitted to these
endpoints is 432 x 336 pixels.
• SIF (352 x 240 pixels) and 4SIF (704 x 480 pixels) – the resolution transmitted to these
endpoints is 480 x 352 pixels.