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34 Avaya 3720 DECT Telephone - User Guide 02/2009
Basic Operation
Switch the Telephone On/Off
The telephone is switched off:
1. Press and hold On-hook key.
The telephone will vibrate when it is on and the display lights up.
The telephone is in idle mode:
1. Press On-hook key long.
A control question will be displayed.
2. Confirm with Soft key Yes.
Note:
Note: The telephone returns to idle mode when pressing the On-hook key while in a
menu.
Turn the Audible Signal On/Off
The telephone is in idle mode or rings.
1. Press the #-key long. The status of the telephone changes between ring signal on/off. To
locate the button, see
Keys and Buttons on page 24.
The icon indicates a silenced telephone.
Lock/Unlock the Keypad
To prevent accidentally pressing keys and making a call, the keys can be locked.
Lock keypad
1. Press * key.
2. Press Soft key Lock.
Unlock keypad
1. Press * key.
2. Press Soft key Yes.