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Telephone user interface   143
Nortel Integrated Conference Bridge Service Implementation Guide
While the system is announcing the list of conference participants after 
the chairperson enters *69, the chairperson can execute the 
commands in Table 35.
Features available to all participants
Self mute/unmute toggle
All conference participants, including the chairperson, can put 
themselves on mute by dialing *19. While on mute, the participant can 
listen to the conference. To unmute, the participant dials *19 again. 
Because there is one command for mute and unmute, the system 
announces to the participant one of two possible voice messages: 
“Muted” or “Unmuted.” Only the participant that activates the command 
hears the mute/unmute announcement. The mute/unmute command is 
available to those participants who dial into the conference and who the 
chairperson brings into the conference using the dial-out command.
Stop or start music
This feature stops or starts the initial conference music, which is 
possible only when the conferee is the first person joining the 
conference. Dial *99. The first entry stops it, the second entry starts it.
Table 35  
 
Chairperson commands during count command 
Chairperson dials ...
In order to ...
#
Stop and start the playlist.
0
Consult privately with the conferee.
1
Mute/unmute the conferee.
2
Play the current conferee name greeting.
*3
Return to the conference.
4
Select the previous conferee and play name.
6
Select the next conferee and play name.
9
Disconnect the current conferee.
**
Start and stop the help menu.