Polycom RMX 1500 Administrator's Manual page 177

• Defining the dial-in ISDN participant in MCU B and Dial-out ISDN
participant in MCU A (for MCU-to-MCU cascading conferences).
A dial out ISDN participant is defined (added) to conference A. The
participant's dial out number is the dial-in number of the Entry
Queue or conference running on MCU B (for example 54145106).
MCU A dials out to an Entry Queue or conference B running on MCU
B using the Entry Queue number (for example 54145106) or the
conference number.
Conference Profile Definition
The following table lists the recommended Meeting Room/Conference
Profile parameters setting when routing ISDN cascaded calls.
Table 3-1 Recommended Conference Profile Options Setting
Line Rate Motion

128
128
Sharpness Encryption

Chapter 3-Cascading Conferences
LPR
3-13