Yealink T48S Skype For Business Edition User Manual page 137

To mute all conference participants by organizer or presenters:
Tap
1.
A notification is displayed on the participants' phones informing them that a presenter
has muted the audience.
To unmute all conference participants by organizer or presenters:
Tap
1.
A notification is displayed on the participants' phones informing them that the presenter
has unmuted the audience.
The muted participants press
2.
Muting or Unmuting Individual Conference Participants
The organizer and presenters can mute and unmute individual participants during conferences.
To mute the conference participants by organizer or presenters:
Tap .
1.
.
.
to unmute.
Basic Call Features
135