Polycom Version 8.1 Server User Manual


 
Polycom® RealPresence Collaboration Server 800s Administrator’s Guide
2-2 Polycom, Inc.
Media Relay - SVC Conferencing
Media Relay SVC Conferencing is based on the SVC (Scalable Video Codec) video protocol
and SAC audio protocol. It offers high resolution video conferencing with low end-to-end
latency, improved Error Resiliency and higher system capacities.
The Polycom multipoint media server, serves as an integrated media relay engine that
provides media streams for displaying conferences at low latency video experience in video
conferences. For more details, see , "SVC-based Conferencing” on page 2-9.
Mixed CP and SVC Conferencing
This type of conference enables participants with SVC-enabled endpoints and AVC
endpoints to participate in the same conference.
Each endpoint connects according to its capabilities. The MCU processes the AVC video
streams and converts them into SVC video Streams and relays them to the SVC participants
that constructs the video layout on the endpoint.
In the same way, the MCU processes the video streams received from the SVC participants,
converts them into AVC video and then transcodes all the video streams to compose the
video layout that is sent to the AVC endpoints.
Conferencing Capabilities in the Various Conferencing Modes
The following table summarizes the conferencing capabilities and options available in the
different Conferencing Modes.
Table 2-1 Conferencing Capabilities in the Different Conferencing Modes
Feature CP Only Mixed CP & SVC SVC Only
Reservations

Operator
Conferences

Entry Queues
* * *
Dial Out
(AVC Only)
Cascading
** **
IVR

Reduced IVR set for
SVC endpoints
Permanent
Conference

LPR
*** ***
Auto Redial
