Basic Operation 21
Turn the Audible Signal On/Off
A long press on the Sound off key or Mute button changes between ring signal on/off.
The icon indicates a silent handset.
If a handset is shared and one of the users logs off the shared phone, the lock that prevents
the handset from unauthorized use is deactivated. For additional information, see "Lock and
Unlock the Handset" on page 22.
The handset must be in idle mode. While in a menu, press the End key to return to idle
mode.