RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator’s Guide
Polycom®, Inc. 278
For more details, see MGC to Collaboration Server Cascading.

Defining the Cascading Conferences

The table below lists the line rates and the video settings that should be used when defining the conferences
on the MGC. The same line rates should be selected when defining the Conference Profiles on the
Collaboration Server, as well as whether the conference is HD Video Switching. However, the video settings
will be automatically selected by the system.
In addition, the conference running on the MGC should be set as Meet Me Per Conference and select the
H.239 option in the Dual Stream Mode field. For more details on conference definition on the MGC, refer
to the MGC Manager User’s Guide, Volume I, Chapter 5.

Defining the Dial-out Participant on the Collaboration Server

If the dialing is done from a conference running on the Collaboration Server to the conference running on
the MGC, the dial-out participant is defined in the conference running on the Collaboration Server, setting
the Cascade field to Slave. This participant dials the Cascade-enabled Entry Queue defined on the MGC.
1Display the list of participants in the linked conference (Slave conference).
Recommended Conference Line Rates for Cascaded Conferences
Topology Video Session Mode Conference Line Rate
MGC
Collaboration
Server
MGC - CIF 263
Collaboration Server - CIF 264 CP
768Kb/s, 2Mb/s
MGC - HD VSW
Collaboration Server - HD VSW
1.5Mb/s