Polycom 1500/1800/2000/4000 manual Setting Flags on the RealPresence Collaboration Server

Defining Cascading Conferences

Set up Procedures according to the Dialing Direction

Dialing		RealPresence Collaboration Server (RMX)
Direction	MGC Level 1	1500/1800/2000/4000 Level 2

RealPresence 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	Define the conference setting and its line rate to
rate to be the same as the one set on the	be the same as the one set on the MGC.
RealPresence Collaboration Server.
	Define the dial-out participant (Cascaded Link) to
	the conference running on the MGC, setting the
	participant Cascade parameter to Slave.

Setting Flags on the RealPresence Collaboration Server

When running conferences in mixed environment (RealPresence Collaboration Server and MGC) there may be small differences between the line rates each MCU is sending. In the RealPresence 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 RealPresence Collaboration Server.

To modify the flags:

1In the RealPresence 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 18432 Kbps 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

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.

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 network are not to

If the MGC is functioning as a Gateway and participant layouts on the other be forced to 1X1.

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