Polycom realpresence 1800 Administrator's Manual page 1021

The following table summarizes current and legacy (non DMA) conferencing modes within the deployment
architectures:
Conference Modes by Deployment Architecture
RealPresence Hosted Conferences
Conference
Mode
With No DMA
AVC Only Supported.
Dial Out is supported.
RTV is utilized as the
video protocol.
Mixed Mode
Polycom
Supported
SVC
Polycom®, Inc.
Single Premise Deployments
(Direct Dial In/Out)
With DMA
Supported.
Dial Out is not
supported.
For backward
compatibility, Dial out
from the RMX Web
Client or RMX
Manager can be used.
In regular mode,
H.264/SVC is utilized
as the video protocol.
In backward
compatibility mode,
RTV is utilized,
provided it is not
disabled on the
Collaboration Server
configuration via
system flags (covered
later in this section).
Supported
Appendix H - Deployment Into Microsoft Environments
Lync 2013 AVMCU Cascaded Conferences
(Indirect Dial In)
With DMA
Supported.
Simulcast transmitted.
Multiple participants
received.
Not Supported
Not Supported
Non DMA
(Backward
Compatibility)
Supported.
One transmitted RTV
stream. One received
RTV stream.
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