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RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator’s Guide
Polycom®, Inc. 1055
Sharing Content via the Polycom CSS Plug-in for Lync
Clients
From version 8.1, Polycom CSS (Content Sharing Suite) Plug-in for Lync clients allows Lync clients to
receive and send Content on a separate channel, without having to use the video channel. Content is
transmitted using SIP BFCP.
When Lync clients connect, each endpoint is represented twice in the RMX Manager or Collaboration Server
Web Client. One connection represents the actual Lync client, while the second connection represents the
content channel via the Polycom plug-in.
The name of the plug-in “participant” is derived from the name of the Lync client with the suffix “_cssplugin”.
When a Lync client connects to a conference, the plug-in connects automatically, regardless of whether the
Lync client dials into a conference or is called from the MCU.
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