| 摘要 |
A method and system for controlling the scope of user participation in an ongoing communication session. A communication controller receives a predefined control signal, such as from one of the conference participants, during the ongoing session. The control signal indicates a request to change the scope of participation of at least one user in the session. In response, the server changes the scope of participation of at least one user, while retaining participation of that user in the session. For instance, the request may be to switch one of the users to a listen-only mode, and the server may respond accordingly.
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