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RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator’s Guide
Polycom®, Inc. 165
If only HD720p30 content is provided, 1.5 HD video resources are allocated to the conference.
If HD1080p15 is provided, 2 HD video resources are allocated to the conference.
● Optionally, content can be sent at multiple resolutions to H.263 endpoints and H.264 endpoints whose
resolution is lower than HD and support H.263 content. In this case an additional resource is
allocated.
● Optionally, content can be sent to cascaded RealPresence Collaboration Servers.
An additional resource is allocated to the conference, based on the content resolution selected.
The resolution sent is set in the Conference Profile when H.264 Cascade is selected.
All cascading conferences must be defined with the same content settings (content line rate,
resolution and frame rate).
A link that does not support the content settings cannot receive content.
● If there are not enough resources available, Multiple Content Resolutions is disabled and the
conference does not include cascading links, content sharing mode reverts to Content Video
Switching mode.
If the conference includes cascading links, and the conference is set to H.264 Cascade and SVC
Optimized:
H.264-capable endpoints will share content using these settings.
H.263-capable endpoints will not share content and will receive the content over the video
(people) channel.
If H.264 Cascade was not selected for the conference, the H.264 HD protocol will be used.
● H.264 endpoints that are not HD capable and do not support H.263 will receive content over the video
(people) channel.
● TIP endpoints are not supported. Content will be displayed over the video (people) channel.
● If AS SIP is enabled for the conference, Multiple Resolutions will be checked. H.264 will be enabled,
and both H.263 and H.264 Cascade will be hidden. This can improve AS SIP performance in
high-traffic environments. In this case, resources are allocated immediately when the conference is
started.