Supplemental Conferencing Features - Polycom realpresence 1800 Administrator's Manual

 H.261 CIF/QCIF – Supported in Continuous Presence (CP) conferences at resolutions of 288 x
352 pixels (CIF) and 144 x 176 pixels (QCIF). Both resolutions are supported at frame rates of up
to 30 frames per second.
 H.263 4CIF - A high video resolution available to H.263 endpoints that do not support H.264. It is
only supported for conferences in which the video quality is set to sharpness and for lines rates
of 384kbps to 1920kbps.
 Standard Definition (SD) - A high quality video protocol which uses the H.264 and H.264 High
Profile video algorithms. It enables compliant endpoints to connect to Continuous Presence
conferences at resolutions of 720 x 576 pixels for PAL systems and 720 x 480 pixels for NTSC
systems.
 High Definition (HD) – HD is an ultra-high quality video resolution that uses the H.264 and H.264
High Profile video algorithms. Depending on the RealPresnce Collaboration Server's type,
compliant endpoints are able to connect to conferences at the following resolutions:
 720p - 1280 x 720 pixels
 1080p - 1920 x 1080 pixels
● Lost Packet Recovery (LPR) - LPR creates additional packets that contain recovery information
used to reconstruct packets that are lost during transmission.

Supplemental Conferencing Features

In addition to basic parameters that determine the quality of the video, additional features can be enabled,
adding capabilities to the conference, or enabling special conferencing modes:
● Content Sharing (H.239) – Allows compliant endpoints to transmit and receive two simultaneous
streams of conference data to enable Content sharing. H.239 is also supported in cascading
conferences. Both H.263 and H.264 Content sharing protocols are supported. If all endpoints
connected to the conference have H.264 capability, Content is shared using H.264, otherwise
Content is shared using H.263.
For more information, see
● Video Clarity (CP Conferences only) - Video Clarity applies video enhancing algorithms to
incoming video streams of resolutions up to and including SD.
Video Clarity is not supported by Collaboration Server (RMX) 1800 with no DSP cards.
● Encryption – Used to enhance media security at conference and participant levels.
For more information, see
● Conference Recording and Webcasting - The Collaboration Server enables audio and video
recording, streaming, and webcasting of conferences using the Polycom® RealPresence® Media
Suite.
● Lecture Mode (CP Conferences only) – The lecturer is seen by all participants in full screen while
the lecturer views all conference participants in the selected video layout.
For more information, see
● Presentation Mode (CP Conferences only) – When the current speaker's speech exceeds a
predefined time (30 seconds), the conference layout automatically changes to full screen, displaying
the current speaker as the conference lecturer on all the participants' endpoints. During this time the
speaker's endpoint displays the previous conference layout. When another participant starts talking,
the Presentation Mode is cancelled and the conference returns to its predefined video layout.
Presentation mode is available with Auto Layout and Same Layout.
Polycom®, Inc.
Sharing Content During
Implementing Media Encryption for Secured
Lecture Mode.
Conferencing Modes Overview
Conferences.
Conferencing.
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