Polycom realpresence 1800 Administrator's Manual page 213

To create a Link Participant in the dial-out RMX:
1 In the General tab:
 In the Dialing Direction drop-down menu, select Dial out.
 In the Type drop-down menu, select H.323.
For more information see the
2 In the Advanced tab:
(This field is only enabled if the RMX system is licensed for Telepresence Mode.)
 The Cascade dial-out participant must be defined as Slave. (The dial-in undefined participant
should be defined as the Master.)
 In the Number of cascaded links (for ITP) drop-down menu, select the maximum number of
Multiple Cascade Links required according to the number of Room System endpoints in the
cascaded conference.
This field enables the administrator to select the maximum number of Multiple Cascade Links
required according to the number of Room System endpoints in the cascaded conference.
For example if an RPX 4xx is included, the number of links required is 4.
Polycom®, Inc.
Setting Conferences for Telepresence Mode (AVC CP)
Creating a Cascade Enabled Dial-out/Dial-in Participant Link.
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