Polycom 2000 User Manual

The following table shows the bit rate allocated to the Content channel 

from the video channel in each of the three Content modes: 

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.

0

64

64

128

128

256

256

256

0

64

128

192

256

384

384

512

0

64

128

256

384

512

768

768