Polycom DOC2702A User Manual

Polycom RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide 

Polycom, Inc.

When the Mute Participants Except Lecturer option in the Conference Profile is enabled, the 
audio of all participants in the conference except for the lecturer can be automatically muted 

upon connection to the conference. This prevents other conference participants from 

accidentally interrupting the lecture, or from a noisy participant affecting the audio quality 

of the entire conference. Muted participants cannot unmute themselves unless they are 

unmuted from the RMX Web Client/RMX Manager.

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Both Administrators and Operators (users) are allowed to set the Mute Participants 

Except Lecturer option.

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When the Mute Participants Except Lecturer option is enabled, the mute indicator on the 

participant endpoints are not visible because the mute participants was initiated by the 

MCU. Therefore, it is recommended to inform the participants that their audio is muted 

by using the Closed Caption or Message Overlay functions.

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When the Mute Participants Except Lecturer option is enabled in the Conference Profile 

settings, all conferences to which this profile is assigned will start with this option 

enabled. All participants, except for the designated lecturer, are muted.

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The Mute Participants Except Lecturer option can be enabled at any time after the start of 

the conference. It allows all the conference participants to converse before the lecturer 

joins the conference or before they are muted.

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The Mute Participants Except Lecturer option can be disabled during an ongoing 

conference, thereby unmuting all the participants in the conference.

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If the endpoint of the designated lecturer is muted when the lecturer connects to the 

conference, the lecturer remains muted until the endpoint has been unmuted.

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When you replace a lecturer, the MCU automatically mutes the previous lecturer and 

unmutes the new lecturer.

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When you disconnect a lecturer from the conference or the lecturer leaves the 

conference, all participants remain muted but are able to view participants in regular 

video layout until the you disable the Mute Participants Except Lecturer option.

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A participant can override the Mute Participants Except Lecturer option by activating the 

Mute All Except Me option using the appropriate DTMF code, provided the participant 

has authorization for this operation in the IVR Services properties. The lecturer audio is 

muted and the participant audio is unmuted. You can reactivate the Mute Participants 

Except Lecturer option after a participant has previously activated the Mute All Except 

Me option. The participant is muted and the lecturer, if designated, is unmuted.

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In cascaded conferences, all participants (including the link participants) except the 

lecturer are muted. Only the lecturer is not muted.