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Polycom® RealPresence Collaboration ServerVirtual Edition Administrator’s Guide
3-20 Polycom, Inc.
Content Sharing via the Polycom CCS Plug-in for Microsoft Lync Clients
From version 8.1, Polycom CCS (Content Collaboration Solution) 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.
For more information, see Appendix 3, “Exclusive Content Mode”on page 3-15.
Video Preview (AVC Only Participants)
Collaboration Server users can preview the video sent from the participant to the conference
(MCU) and the video sent from the conference to the participant. It enables the
Collaboration Server users to monitor the quality of the video sent and received by the
participant and identify possible quality degradation.
The video preview is displayed in a separate window independent to the Collaboration Server
Web Client. All Web Client functionality is enabled and conference and participant
monitoring as well as all other user actions can be performed while the video preview
window is open and active. Live video is shown in the preview window as long as the
window is open. The preview window closes automatically when the conference ends or
when participant disconnects from the conference. It can also be closed manually by the
Collaboration Server user.
Video Preview Guidelines
• Video preview is available for AVC participants. It is not available for SVC participants.
• Video preview window size and resolution are adjusted to the resolution of the PC that
displays the preview.
• Video Preview of the video sent from the conference to the participant is shown
according to the line rate and video parameters of the level threshold to which the
participant is connected.
• All users can view a video preview.
• Only one preview window can be displayed for each Collaboration Server Web Client
connection (workstation).
• Only one preview window can be displayed for a single conference and up to four
preview windows can be displayed for each system on different workstations (one per
workstation and one per conference).
• Live video that is shown in the preview window does not include the Content when it
is sent by the participant.
• Video Preview is supported in cascaded conferences.
• If the video preview window is opened when the IVR slide is displayed to the
participant, it will also be displayed in the video preview window.
• Video Preview is supported with H.264 High Profile.
• Video Preview is not supported for endpoints using the RTV protocol.
• Video Preview is disabled in encrypted conferences.
• Video preview cannot be displayed when the participant’s video is suspended.
• Participant’s video preview and the CMAD window cannot be open and running
simultaneously on the same PC as both require the same DirectDraw resource.