Previewing A Participant's Video - Polycom RealPresence 1800 Administration Manual

● The participant entering the DTMF code to activate the Mute All Except Me option. To do this, the
participant must be authorized to do so in the IVR Services properties). In this case, the lecturer's
audio is muted and the authorized participant's audio is unmuted until you reactive the Mute
Participants Except Lecturer option again.
When the Mute Participants Except Lecturer option is enabled, the mute indicator on the participant video
endpoint display are not visible because the mute participants was initiated by the MCU. You may wish to
inform participants that their audio is muted by using the Message Overlay functions. For more information
on this function, see Sending a Message to Participants During a Conference
To mute all participants other than the lecturer during the ongoing conference:
1 In the RMX Manager Conferences List, select the active conference of interest.
2 Right-click and select Profile Properties.
3 Go to Audio Settings and enable the Mute Participants Except Lecturer option.
4 If a lecturer is not identified in the Lecturer field, select the lecturer from the list of the connected
participants.
5 Click OK.
When the Mute Participants Except Lecturer option is enabled and a conference has started, the
Mute by MCU icon is displayed in the Participants pane.

Previewing a Participant's Video

You can preview the video sent from a participant to the conference (MCU) and the video sent from the
conference to a participant by selecting the appropriate option from the Participant pop-up menu. This allows
you to monitor the quality of the video sent and received by participant's in conference and identify possible
quality degradation. The video preview is displayed in a separate independent window with no disruption to
the conference and the video preview window size and resolution are adjusted to the resolution of the PC
on which it is displayed.
Polycom, Inc.
Working with Active Conferences
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