Adjusting The Volume; Muting/Unmuting A Call - Dell UC150 User Manual

Adjusting the volume

Use the + and – button located at the center of the call control unit to adjust
the volume. Press + to increase the volume level and – to decrease the volume
as shown below.

Muting/unmuting a call

Press the mute button to mute and unmute the microphone as shown below.
Whenever the microphone is muted, a red LED glows indicating that the
microphone is muted, and whenever the microphone is unmuted, the red LED
stops.
Setting up your headset 15
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