Basic  Call  Features 
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To mute the conference participants by organizer or presenters: 
1.  Tap More->Participants.   
 
2.  Tap     next to the participant to forbid the participant from speaking. 
A mute icon          is displayed next to each person who is muted. 
To unmute the conference participants by organizer or presenters: 
1.  Tap        next to each person who is muted. 
2.  The muted participants tap Unmute or the mute touch key on the phone to unmute.   
Promoting or Demoting Conference Participants 
The organizer and presenters can promote other conference participants from attendees to 
presenters, or demote conference participants from presenters to attendees. But they cannot 
demote or promote themselves. The presenters cannot demote or promote the organizer. The 
attendees cannot promote or demote anyone. 
To demote or promote conference participant: 
1.  Tap More->Participants. 
2.  Do one of the following: 
-  Tap (              ) to demote a presenter to an attendee. 
-  Tap (              ) to promote an attendee to a presenter. 
Enabling or Disabling the Announcement 
Only the organizer and presenters can enable or disable the announcement. When the 
announcement feature is enabled, the phone will issue a voice message to announce that a 
participant joins or leaves the conference. 
To enable or disable conference announcements: 
1.  During a conference call, do one of the following: 
-  Tap More->E.Anc to enable announcements. 
An icon            appears on the touch screen.   
-  Tap More-> U.Anc to disable announcement.