Appendix H - Integration Into Microsoft Environments
Polycom®, Inc. 761
Guidelines
The maximum resolution for content sharing via the Polycom CSS plug-in is HD720p5.
The Polycom CSS plug-in supports H.263 and H.264 video protocols for content sharing.
SVC-enabled endpoints use the AVC (H.264) protocol for sharing content.
Content can be shared between different types of endpoints, using different network protocols
(H.323, SIP and ISDN/PSTN).
TIP content is not supported.
Lync 2013 is supported.
ICE is not supported.
Configuring the MCU for Content Sharing via the Polycom CSS Plug-in
You can configure the MCU for content sharing via the Polycom CSS plug-in by setting the following
parameters:
Setting the BLOCK_CONTENT_LEGACY_FOR_LYNC system flag
Setting the Content parameters in the conference Profile

Setting the System Flag

By configuring the system flag BLOCK_CONTENT_LEGACY_FOR_LYNC you control the system
behavior in an environment where some Lync clients use the Polycom CSS plug-in and some do not. This
flag must be manually added to the system configuration to change its value.
When set to NO (default), Content is sent to all Lync clients over the video channel, including those
with the Polycom CSS plug-in installed, even when the Send Content to Legacy Endpoints is
disabled.
Other, non-Lync legacy endpoints will not be affected by this flag and will receive content according
to the Send Content to Legacy Endpoints settings in the conference Profile.
When set to YES, Content is not sent to Lync clients over the video channel including those with the
Polycom CSS plug-in installed, even when the Send Content to Legacy Endpoints is enabled.
Other, non-Lync legacy endpoints will not be affected by this flag and will receive content according
to the Send Content to Legacy Endpoints settings in the conference Profile.