Chapter 3-Video Protocols and Resolution Configuration for CP Conferencing
Polycom, Inc. 3-3
—For Content Sharing
—As an RSS Recording link
—With Video Preview
• HD1080p60 is supported
—In Continuous Presence (CP) mode:
• At bit rates of up to 4Mbps.
•HD1080p60 is supported asymmetrically: The RMX receives HD720p60 and
sends HD1080p60.
•HD1080p60 is only selectable when Video Quality is set to Motion. System
behavior when Video Quality is set to Sharpness is unchanged.
—In Video Switching (VSW) mode:
• At bit rates of up to 6Mbps.
•HD1080p60 is supported symmetrically: The RMX receives and sends
HD1080p60.
•In Telepresence environments the RMX sends HD1080p60 to all endpoints except for
those with 1x1 Video Layouts, which receive the same resolution and frame rate from the
RMX as they send. TIP endpoints are not supported
• PAL endpoints are supported at a frame rate of 50 fps.
•Each HD1080p60 participant consumes 9 system resources.
(For comparison: Each HD720p60 participant consumes 6 system resources.)
•HD1080p60 is not supported:
—For ISDN participants.
—For Content sharing.
—With RTV

CP Conferencing with H.263 4CIF

The video resolution of 4CIF in H.263 endpoints is only supported for conferences in which
the video quality is set to sharpness and for line rates of 384 Kbps to 1920 Kbps as shown in
Table 3-1.
The RMX Web Client supports monitoring of H.263 4CIF information. The H.245 or SDP tab
includes the additional information.
Table 3-1 Video Quality vs. Line Rate
Endpoint
Line Rate Kbps
Video Quality
Motion Sharpness
Resolution Frame Rate Resolution Frame Rate
128 QCIF 30 CIF 30
256 CIF 30 CIF 30
384 - 1920+ CIF 30 4CIF 15