To deactivate the flight mode, select any other profile.

Note: In the flight profile, you may need to unlock the device and change to the calling profile before making a call.

Keypad lock (keyguard)

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. 59.

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

Functions without a SIM card

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). 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 phone.

3. Call functions

Make a voice call

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.

3.To end the call, or to cancel the call attempt, press the end key, or close the phone.

21

Page 22
Image 22
Nokia 3555 manual Call functions, Keypad lock keyguard, Functions without a SIM card, Make a voice call