Polycom 2000/4000 manual Content Protocol, Endpoint Capabilities

Polycom RMX 2000/4000 Administrator’s Guide

The following table shows the bit rate allocated to the Content channel from the video channel in each of the three Content modes:

Table 2-4Bit Rate Allocation to Content Channel

Conf	64/							1472/1920/
Kbps /		128	256	384	512	768	1024
	96							4096-VSW
Mode
Graphics	0	64	64	128	128	256	256	256
Hi-res	0	64	128	192	256	384	384	512
Graphics
Live	0	64	128	256	384	512	768	768
Video

Content Protocol

H.263 Annex T and H.264 protocols are supported for the Content transmission.

H.264 provides higher video quality at video resolutions of up to HD.

Endpoint Capabilities

•If an endpoint that supports only H.263 for Content Sharing connects to a conference with an Up to H.264 Content sharing Profile:

—H.263 is used for Content if that participant is the first to connect to the conference

—Content sharing is stopped for all participants if the connection occurs after Content sharing has started. When Content sharing is restarted by the user, Content is shared using H.263.

•If an endpoint that does not support H.264 Content sharing disconnects from a conference with an Up to H.264 Content Sharing Profile, the Content sharing continues using H.263. This is true even if all the remaining connected endpoints support H.264. If Content sharing is stopped and restarted by the user, Content sharing is automatically upgraded to use H.264.

•The H239_FORCE_CAPABILITIES System Flag in system.cfg gives additional control over Content sharing.

When the flag is set to NO, the RMX only verifies that the endpoint supports the content protocols: Up to H.264 or H.263.

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