Nokia 2720 - Manual (Page 14)

Mute the ringing tone of an incoming call
Press a volume key.
Reject an incoming call
Press and hold a volume key.
Keypad lock
Lock the keypad
Select Menu , and press * within 3.5 seconds to lock the
keypad.
Unlock the keypad
Select Unlock , and press * within 1.5 seconds. If the
security keyguard is activated, enter the security code
when requested.
Set automatic keypad lock
Select Menu > Settings > Phone > Automatic
keyguard
>
On , and set the length of time, after which
the keypad locks.
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