Chapter 4-Additional Conferencing Information
Polycom, Inc. 4-43
Muting Participants Except the Lecturer 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 Collaboration Server Web Client/RMX Manager.
Guidelines
• Both administrators and operators (users) are allowed to set the Mute Participants Except
Lecturer option.
• 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 Message Overlay functions.
• 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.
•The Mute Participants Except Lecturer option can be enabled or disabled at any time after
the start of the conference. When enabled, it allows all the conference participants to
converse before the lecturer joins the conference or before they are muted. When
disabled, it unmutes all the participants in the conference.
• 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.
• When you replace a lecturer, the MCU automatically mutes the previous lecturer and
unmutes the new lecturer.
• 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.
• 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.
• In cascaded conferences, all participants (including the link participants) except the
lecturer are muted. Only the lecturer is not muted.