Polycom 4000, (RMX) 1500, 1800, 2000 Setting Flags on the Collaboration Server, To modify the flags:

RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator’s Guide
Polycom®, Inc. 273
Setting Flags on the Collaboration Server
When running conferences in mixed environment (Collaboration Server and MGC) there may be small
differences between the line rates each MCU is sending. In the Collaboration Server, several flags must be
set to ensure that these differences will not cause the cascaded link to connect as Secondary and that
Content flows correctly between the cascaded conferences. This procedure is performed once per
Collaboration Server.
To modify the flags:
1In the Collaboration Server Web Client menu, click Setup>System Configuration.
2In the System Flags dialog box, add the following new flags and values:
MIX_LINK_ENVIRONMENT=YES
Setting this flag to YES will adjust the line rate of HD Video Switching conferences run on the
RealPresence Collaboration Server 1800 from 1920Kbps to 17897Kbps to match the actual rate
of the HD Video Switching conference running on the MGC. In such case, the conference can
include IP and ISDN participants.
IP_ ENVIRONMENT_LINK=NO
H263_ANNEX_T=YES (default)
This flag enables/disables the use of Annex T with H263. Set it to NO if the endpoints connecting
to the conference do not support this mode. In such a case, you must also change the MGC flag
ENABLE_H239_ANNEX_T setting to NO.
FORCE_1X1_LAYOUT_ON_CASCADED_LINK_CONNECTION=YES (default).
Set this flag to NO If the MGC is functioning as a Gateway and participant layouts on the other
network are not to be forced to 1X1.
Collaboration
Server to MGC
Set the appropriate flags (done once only) Set the appropriate flags (done once only)
Define the cascade-enabled Entry Queue.
Define the conference setting and its line
rate to be the same as the one set on the
Collaboration Server.
Define the conference setting and its line rate to
be the same as the one set on the MGC.
Define the dial-out participant (Cascaded Link) to
the conference running on the MGC, setting the
participant Cascade parameter to Slave.
If the flag MIX_LINK_ENVIRONMENT is set to YES, the IP_LINK_ENVIRONMENT flag must be set
to NO.
If the flag MIX_LINK_ENVIRONMENT is set to NO, the IP_LINK_ENVIRONMENT flag must be set to
YES.
Set up Procedures according to the Dialing Direction
Dialing
Direction MGC Level 1
RealPresence Collaboration Server (RMX)
1500/1800/2000/4000 Level 2