Polycom RealPresence 2000, Руководство администратора

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Chapter 2-Conference Profiles
Polycom, Inc.
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The following diagram illustrates an example of a mixed CP and SVC conferencing mode:
In this example, an SVC endpoint ( 1 ) receives three video streams at different frame rates
and resolutions, and creates the conference layout with the received video streams. The
video bit stream that the SVC endpoint receives from the AVC endpoint ( 3 ) is transcoded in
the Collaboration Server and then encoded into an SVC bit stream in the required
resolution.
Alternatively, an AVC endpoint (
4 ) sends a single resolution video stream to the
Collaboration Server. The Collaboration Server first converts the SVC bit stream into AVC,
then transcodes the video received from the other endpoints to the required resolution. The
Collaboration Server composes the video layout for the AVC endpoint and sends a single
resolution video stream with the video layout to the participant. In the displayed example,
the Collaboration Server creates different video layouts for each AVC endpoint.
Default Profile Settings in a Mixed CP and SVC Conferencing Mode
The RMX is shipped with a default Conference Profile (CP and SVC) for mixed CP and SVC
conferences which enables users to immediately start a standard ongoing mixed CP and
SVC conference. These are also the default settings when creating a new Profile. (During
mixed SVC & CP conferences, PSTN (Audio Only) calls are supported.) Dial-out is not
available in Mixed CP and SVC conferences.
The default settings are as follows:
Table 2-8 Default Mixed CP and SVC Conference Profile Settings
Setting Value
Profile Name Factory_Mix_SVC_CP_Video_Profile