Operation Manual

28
D380-D380A
Adjusting the volume
• To increase the volume, press .
• To decrease the volume, press .
Enabling/Disabling the secret mode
Or
The secret mode allows you to temporarily mute the line so that you are not heard
by the caller. Once enabled, the SECRET MODE message flashes on the screen.
(during a call)
Contextual menu > SECRET > ACTIV. or DISABLE