Nokia 6555 0029488 Benutzerhandbuch

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Select Menu or Unlock (1), and press * (2) 
within 1.5 seconds to lock or unlock the keypad.

If the security keyguard is activated, enter the 
security code if requested.

To answer a call when the keyguard is on, press 
the call key or open the phone. When you end or 
reject the call, the keypad automatically locks.

For Security keyguard, see Phone p. 52.

When the keyguard is on, calls may be possible 
to the official emergency number programmed 
into your device.

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Several functions of your phone may be used without installing a SIM card (for 
example, the data transfer with a compatible PC or another compatible device). 
Without a SIM card, some functions appear dimmed in the menus and cannot be 
used.

For an emergency call, some networks may require that a valid SIM card is 
properly inserted in the device.

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1. Enter the phone number, including the area code.

For international calls, press * twice for the international prefix (the + 

character replaces the international access code), enter the country code, the 

area code without the leading 0, if necessary, and the phone number.

2. To call the number, press the call key.

To increase the volume in a call, press the volume up key and to decrease 

press the volume down key.