Polycom RealPresence Group Series Release Notes page 11

Release Notes
Polycom RealPresence Group Series, Version 4.1.1.1
People+Content™ IP Compatibility with Microsoft Windows 8
New Features in 4.0.2
Support for SVC-Based Conferencing
Polycom, Inc.
This release ensures that People+Content IP is compatible with Microsoft
Windows 8. This allows you to use your Windows 8 computer to send content
to the RealPresence Group system using the People+Content IP application.
For information on setting up People+Content IP, refer to the Administrator's
Guide for the Polycom RealPresence Group Series. For information on using
People+Content IP, refer to the User's Guide for the Polycom RealPresence
Group Series.
The version 4.0.2 software includes the features and functionality of version
4.0.1, with the following additions.
Version 4.0.2 of the Polycom RealPresence Group Series software adds
support for the SVC (Scalable Video Codec) protocol. In an SVC-based
conference, each SVC-enabled endpoint transmits multiple bit streams, called
simulcasting, to the Polycom RealPresence Collaboration Server (RMX). The
RealPresence Collaboration Server sends or relays selected video streams to
the endpoints without sending the entire video layout. The streams are
assembled into a layout by the SVC-enabled endpoints according to each of
their different display capabilities and layout configurations.
Advantages and Configuration Examples
SVC-based conferencing provides several benefits, including fewer video
resource requirements, better error resiliency, lower latency, and more
flexibility with display layouts. For example, on RealPresence Group Series
systems in a four-way call, the layout is 1+3, which is the current speaker in a
large window and the other participants in smaller windows below the current
speaker.
The following table shows the layout, resolutions, and frame rates for four-way
calls at different call speeds.
Call Speed Layout
1920 kbps 1+3
1472 kbps 1+3
1024 kbps 1+3
768 kbps 1+3
Current Speaker Participants
720p30 360p15
720p30 360p7.5
720p15 180p15
720p7.5 180p7.5
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