Polycom RealPresence 4000 Administrator's Manual page 160

Polycom® RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator's Guide
Table 4-7
Cascade
Content
Resolution/
Settings
fps
HD720/5
Hi Resolution
HD720/30
Graphics
HD1080/15
HD720/5
Live Video HD720/30
HD1080/15
The selection of the appropriate Content Resolution option, when several options are
available, should be based on the line rate and capabilities that can be used by most or all
endpoints connecting to the conference.
Examples:
•
•
4-14
Bit Rate Allocation to Content Channel by Line Rate, Content Settings & Content Resolution
in AVC CP Conferencing (Continued)
Content Bit Rate Allocation per Conference Line Rate (kbps)
64 128
96 256
If the conference Line Rate is 1024 kbps.
and
If the Content Settings selection is Graphics.
— Content Resolutions of HD720/5 and HD1080/15 are selectable with 256 kbps and
768 kbps allocated as the Conference Content Rate respectively.
The higherContent Resolution, HD1080/15 should be selected only if most of the
endpoints connecting to the conference can support a Content Rate of 768Kbps,
which requires the participant to connect to the conference at a Line Rate of
1024kbps.
When the lower Content Resolution HD720/5 is selected, the conference Content Rate
is set to 256 kbps. This will enable the endpoints that connect to the conference at a
Line Rate of at least 768 kbps to receive content in the Content channel. Endpoints
that connect to the conference at a line rate lower than 768Kbps, will receive
content in the video channel.
768
384 512
823
192 256 384
256 384 512
512
1472
1024
1728 2048
1152
1920
384 512 768
512 768
768
768 768 768
768 768 768
768 768 1152
4096
512
768
1152
768
768
1152
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