Polycom RMX 1500 Administrator's Manual page 169

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.
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Defining the Cascade Enabled Entry Queue on the RMX
If the dialing is done from the conference running on the MGC that is the Master MCU, a
Cascade-enabled Entry Queue must be defined on the RMX setting it as Slave.
For more details, see RMX to RMX Cascading.
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the HD Video Switching conference running on the MGC. In such case, the
conference can include IP and ISDN participants.
— IP_LINK_ENVIRONMENT=NO
Setting this flag to YES will adjust the line rate of HD Video Switching conferences
run on the RMX 2000/4000 from 1920Kbps to 18432Kbps to match the actual rate of
the IP Only HD Video Switching conference running on the MGC. In such case, the
conference can include IP Only participants.
— 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.
If the MGC is dialing the RMX and the cascaded link connects to the conference via the
Cascade-enabled Entry Queue without being prompted for the conference password,
set the flag to YES as follows:
— ENABLE_CASCADED_LINK_TO_JOIN_WITHOUT_PASSWORD=YES
Click OK.
Reset the MCU to apply the changes.
Chapter 3-Cascading Conferences
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