Polycom 3725-74600-004 Manuale Utente

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Chapter 3-Additional Conferencing Information
Polycom, Inc.
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YES - only the designated Lecturer can be the Content Token holder.
In Exclusive Content Mode, if an endpoint attempts to send Content a few seconds after 
another endpoint sent Content, the Content stream it is receiving is momentarily 
interrupted by a slide which is displayed for a few seconds before the normal Content 
stream is resumed. 
Stopping a Content Session
In some cases, when one participant ends the Content session from his/her endpoint, the 
Content token is not released and other participants cannot send Content.
The Collaboration Server User can withdraw the Content token from the current holder and 
to return it to the MCU for assignment to other endpoints.
To end the current Content session:
>> 
In the Conferences list pane, right-click the conference icon and then click Abort H.239 
Session.
Content Broadcast Control
Content Broadcast Control prevents the accidental interruption or termination of H.239 
Content that is being shared in a conference.
Content Broadcast Control achieves this by giving Content Token ownership to a specific 
endpoint via the Collaboration Server Web Client. Other endpoints are not able to send content 
until Content Token ownership has been transferred to another endpoint via the Collaboration 
Server Web Client
.
Guidelines
Content Broadcast Control is supported in CP conferences.
Content Broadcast Control is supported in H.323 environments.
Only the selected Content Token owner may send content and Content Token requests 
from other endpoints are rejected.
Content Token ownership is valid until:
It is canceled by the Collaboration Server User via the Collaboration Server Web 
Client.
The owner releases it.
The endpoint of the Content Token owner disconnects from the conference.
The Collaboration Server User can cancel Content Token ownership.
In cascaded conferences, a participant functioning as the cascade link cannot be given 
token ownership.