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Chapter 5-Cascading Conferences
Polycom, Inc. 5-27
• Significant call cost savings to be realized by having participants call local MCUs which
in turn call remote MCUs, long distance.
MIH Cascading Levels
The cascading hierarchy topology can extend to up to four levels (Figure 5-9), where the
most common configuration includes up to three levels.
Figure 5-8 MIH Cascade - a Sample 3-Level Cascading Configuration
Cascading Topologies
The cascading hierarchy topology should be deployed according to the following
guidelines:
• If an RMX is deployed on level 1 (recommended deployment):
— Any RMX can be used on level 2, 3 and 4 (recommended deployment),
— MGC version 9.0.4 can be used on level 2 and level 3,
— DST MCS 4000 and other MCUs can be deployed on levels 3 and 4.
• If an MGC is deployed on level 1:
— MGC or RMX can be used on level 2,
— DST MCS 4000 and other MCUs can be deployed on levels 3 and 4.
Although participants in MIH Cascading conferences can connect using H.323, SIP and ISDN, the
MIH Cascading Links must connect via H.323.