Nokia C3-00 - Manual (Page 16)

Keypad lock
Lock the keypad
Select Menu , and press the function key within 3.5 seconds.
Unlock the keypad
Select Unlock , and press the function key within 3 seconds. If requested, enter the lock
code.
Answer a call when the keypad is locked
Press the call key. When you end or reject a call, the keypad locks automatically.
Set automatic keypad lock
Select Menu > Settings > Phone > Automatic keyguard > On , and set the length of
time, after which the keypad locks.
When the device or keypad is locked, calls may be possible to the official emergency
number programmed into your device.
Use your device without a SIM card
Some features of your device may be used without inserting a SIM card, such as games.
Features that are unavailable in the offline profile cannot be selected in menus.
Applications running in background
Leaving applications running in the background increases the demand on battery power
and reduces the battery life.
Applications that usually run in the background are, for example, the Radio and Music
player applications.
Calls
Make and answer a call
Make a call
Enter the phone number, including the country and area code if necessary, and press
the call key.
Answer an incoming call
Press the call key.
Reject a call
Press the end key.
16 Calls