If you are logged in to a conference bridge as a leader you can utilize various star code conference actions shown below:

Star Code
Application
Description
[*]6Toggle MuteToggle Mute On/Off
[*]32 + [10-Digit]Add a ParticipantOn-Net or Off-net 10 Digits
[*]33 + [3-Digit Extension]Add a ParticipantOn-Net User 3 Digit Extension
[*]34 + [4-Digit Extension]Add a ParticipantOn-Net User 4- Digit Extension
[*]80Start RecordingRecording On
[*]81Stop RecordingRecording Off
[*]74Dec Rx GainDecrease volume to participant
[*]75Reset Rx GainReset volume to participant
[*]76Inc Rx GainIncrease volume to participant
[*]77Dec Tx GainDecrease volume to conference
[*]78Reset Tx GainReset volume to conference
[*]79Inc Tx GainIncrease volume to conference
[*]91List ParticipantsTo announce the list of active participants
[*]92Toggle Announce On/OffToggle Announcement On/Off
[*]93Disconnect AllDisconnect All Other Participants
[*]94Toggle Conference LockToggle Conference Lock
[*]95Count ParticipantsTo announce the count of active participants
[*]96Mute AllMute All Other Participants
[*]97UnmuteAllUn-mute All Other Participants