Polycom G7500 Reference Manual page 16

call.escalate2MCU.enable
If set to "1", a point-to-point call on your system can escalate to an impormptu conference call
on an external Polycom MCU.
Calls converted through a RealPresence DMA system gateway (H.323 to SIP or vice versa)
won't join an impromptu conference call.
To use this feature, make sure you set the relevant voIpProt.SIP.* parameters to register your
system with a Polycom RealPresence Distributed Media Application (DMA) system. You also
must set call..escalate2MCU.conferenceId.
0 (default)
1
call.escalate2MCU.conferenceId
Specifies the conference factory ID associated with the SIP conference factory on your
RealPresence DMA system.
Integer (0-128)
Note: The conference factory ID should come from the same RealPresence DMA
system your video-conferencing system uses for SIP registration. Calls won't
escalate if the ID you provide isn't recognized by your RealPresence DMA
system.
Polycom, Inc.
Call Parameters
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