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Polycom RMX 1000 User Guide
4-7
and the conference video can be displayed with the best HD resolution of
1280x720 (720p). However, all the endpoints must support the H.264 protocol
and 720p resolution, and the bandwidth cannot be lower than 832Kbps, or
else the display of conference video will be, depending on the capability of
the participant's endpoint, degraded to the resolution of 4CIF or CIF, or
H.263 code.
The RMX supports a maximum of 20 video resources and 20 audio resources. The
number of connection resources supported by the device in the actual conference
depends on the number of resources purchased by the user.
Defining Content Video Quality
When the endpoint sends dual streams, the RMX 1000 system applies
different encoding and decoding policies to the people video stream and
content video stream. See the table below, which provides the video
parameters for setting the second channel of content image.
Table 4-8 Video Quality Parameters – Second-channel Video Dual-stream Definition
Parameter Description
Content Setting
Set the video protocol used for the dual-stream video. You can
select the H.264 or H.263 coding/decoding algorithm based on
the endpoint capability and network bandwidth. When None is
selected, it indicates dual streams are not enabled.
Note:
If this setting is H.264, when an endpoint that only
supports H.263 protocol joins in the conference, an H.264
endpoint that originally sent dual streams will terminate sending
dual streams and resend them using the H.263 protocol.
H.239 Setting
The H.239 protocol is used to send dual streams. You can
select three kinds of video quality as needed:
Graphics: For the standard video display
High-resolution graphics: For the graphic detail display of high
quality broader bandwidth is required.
Live Video: For full-motion of dynamic video display. The
broadest bandwidth is required.
Send Content to
Legacy
Endpoints
When this option is enabled, legacy endpoints that do not
support the H.239 protocol will still be able to view Content in
the conference. However, the Content video will be sent to
these endpoints instead of the People video when Content is
introduced to the conference. Legacy endpoints will not be able
to share content – they will only be able to view. Modern
endpoints which support H.239 will continue to view dual
streams (People and Content simultaneously) and be able to
share content.
Video Settings
To set the screen layout of conference on the endpoint screen, click the Video
Settings tab on the New Profile interface.