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Setting Conferences for Telepresence Mode (AVC CP)

Creating Multiple Cascade Links Between Telepresence Conferences

You can create multiple Cascading links between Collaboration Servers hosting conferences that include Immersive Telepresence Rooms (ITP) such as Polycom’s OTX and RPX Room Systems.

Guidelines for Creating Multiple Cascading Links between Conferences

●Basic Cascading topology is used. For more information see Basic Cascading Using IP Cascaded Link.

●Multiple Cascade Links between conferences are implemented by creating a Link Participant which consists of a main link and sub-links which are automatically generated and sequentially numbered. For more information see Creating a Link Participant, Creating a Link Participant.

●All cascaded links must use H.323 protocol.

●Multiple Cascade Links are supported in CP conferencing mode.

●The number of cascading links is defined manually according to the maximum number of Room System cameras in the cascaded conference.

●When the active speaker is in an Immersive Telepresence Room, Multiple Cascade Links are used, one link for each of the Room System’s cameras.

An RPX 4xx Room System requires 4 Cascaded Links to carry the video of its 4 cameras.

An RPX 2xx Room System requires 2 Cascaded Links to carry the video of its 2 cameras.

An OTX 3xx Room System requires 3 Cascaded Links to carry the video of its 3 cameras. The OTX Room System must be configured as Room Switch in order to send multiple streams. When configured in CP Mode, its cameras zoom out and all 3 screens are sent as one stream.

●The number of links is defined when creating the Link Participant. Each conference in the cascade must have a Link Participant with the same number of Multiple Cascade Links defined. Calls from Link Participants not defined with the same number of links are rejected. Number of cascading links is not identical for all conferences is listed as the Call Disconnection Cause. For more information see Creating a Link Participant and Monitoring Multiple Cascade Links.

●Although it is possible to disconnect and reconnect specific Multiple Cascade Links using the RealPresence Collaboration Server Web Client / RealPresence Collaboration Server Manager it not advisable to do so.

If the main link is disconnected all sub-links are disconnected and deleted. Reconnecting the main link reconnects all sub-links.

If a sub-link is disconnected it remains disconnected until it is manually reconnected.

The number of Multiple Cascade Links cannot be modified while any of the links are in a disconnected state. All previous links must be deleted before modification is possible. For more information see Monitoring Multiple Cascade Links.

●A Link Participant can be dragged from the address book into a conference.

If it is the first Link Participant in the conference, the number of Multiple Cascade Links defined for the participant are created and connected.

If it is not the first Link Participant in the conference, the number of Multiple Cascade Links defined for the participant is ignored.

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