Polycom Version 8.1 Server User Manual


 
Polycom, Inc. 2-1
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Conference Profiles
Profiles stored on the MCU enable you to define all types of conferences. Profiles include
conference parameters such as Conferencing Mode, Conference Session Type, Conference
Line Rate, Video Layout, Encryption, Lost Packet Recovery etc.
The maximum number of Conference Profiles that can be defined is 80.
Conference Profiles are assigned to Conferences, Meeting Rooms, Reservations and Entry
Queues. The same Profile can be assigned to different conferencing entities. When modifying
the Profile parameters, the changes will be applied to all the conferencing entities to which
the profile is assigned.
Conference Profile options differ according to the selected Conferencing Mode and Conference
Type. Profiles can be defined for AVC (Advanced Video Codec) CP conferencing Mode or
SVC (Scalable Video Codec) conferencing Mode. AVC Conferencing Mode, offers two Video
session types: Continuous Presence (CP) conferences and Video Switching (VSW)
Conferences, and a special functional conference - Operator Conferences.
Conference Profiles can be saved to Conference Templates along with all participant parameters,
including their Personal Layout and Video Forcing settings, enabling administrators and
operators to create, save, schedule and activate identical conferences. For more information
see Chapter 11, “Using Conference Templates” .
Conferencing Modes
The MCU system offers the following Conferencing Modes:
Transcoding - AVC Conferencing
Media Relay - SVC Conferencing
Mixed Mode - Mixed AVC (CP) and SVC Conferencing
CP Transcoding - AVC-based Conferencing
A transcoded CP (Continuous Presence) conference is also described as an AVC (Advanced
Video Coding) conference. It supports the standard video protocols. In this mode, video is
received from all the endpoints using different line rates, different protocols (SIP, H.323)
and video parameters:
Video protocols: H.263, H.264 Base and High profile and RTV
Video Resolutions: from QCIF, CIF and up to 720p
Frame rates up to 30 fps
All endpoints that do not support the H.264 SVC protocol such as H.263, H.264, or RTV, are
considered AVC endpoints.
The MCU process the received video, transcodes it and send the resulting video streams to
the endpoints. The video processing that is required differs according to the video session
set for the conference, with all the processing performed by the MCU. For more details, see ,
"AVC Conferencing - Video Session Types” on page 2-4.