Basic Operations 
27 
To turn the handset on via the handset: 
Do one of the following: 
-  Long press        until the LCD screen lights up. 
-  Place the handset in the charger cradle. 
The handset will be turned on automatically. 
To turn the handset off via the handset: 
1.  Long press     again when the handset is idle. 
You can adjust the ringer volume of your handset according to the noise level of the 
surrounding environment. The ringer volume can be adjusted using the menu or the 
predefined shortcuts (left and right navigation keys) on the keypad when the handset is 
idle. The handset supports 5 different ringer volume levels. The default level is 3. 
For more information on adjusting the ringer volume using the menu, refer to Ring Tones 
on page 33. 
To adjust ringer volume using the predefined shortcuts via the handset: 
1.  Press      or    when the handset is idle. 
Press    to decrease the ringer volume, or press    to increase the ringer volume. 
2.  Press the Save soft key to accept the change or the Back soft key to cancel. 
Note 
You can lock the handset keypad to prevent keys from being accidentally pressed. 
To lock the keypad via the handset: 
1.  Long press            when the handset is idle until the LCD screen prompts “Keypad 
Locked, Press and hold „#‟ to unlock!”.   
The keypad is locked and the        icon appears on the status line. 
You can still answer or reject incoming calls as usual. You can also end the 
answered call by pressing          .