PIN codes

The personal identification number (PIN) code and the universal personal identification number (UPIN) code (4 to 8 digits) help to protect your SIM card against unauthorized use. See "Security," p. 46.

The PIN2 code (4 to 8 digits) may be supplied with the SIM card and is required for some functions.

The module PIN is required to access the information in the security module. See "Security module," p. 61.

The signing PIN is required for the digital signature. See "Digital signature," p. 62.

PUK codes

The personal unblocking key (PUK) code and the universal personal unblocking key (UPUK) code (8 digits) is required to change a blocked PIN code and UPIN code, respectively. The PUK2 code (8 digits) is required to change a blocked PIN2 code. If the codes are not supplied with the SIM card, contact your local service provider for the codes.

Restriction password

The restriction password (4 digits) is required when using the Call restrictions. See "Security," p. 46.

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.

To search for a name or phone number that you have saved in Contacts, see "Search for a contact," p. 36.

To access the list of dialed numbers, press the call key once in the standby mode. To call the number, select a number or name, and press the call key.

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Nokia 3555 manual Call functions, Make a voice call, PIN codes, PUK codes, Restriction password