viiGeneral information■ Access codes• Security code: The security code isprovided with the phone. It helpsto protect your phone againstunauthorised use. The pre-set codeis 12345.• Change the code, and keep the newcode secret and in a safe placeseparate from your phone. Tochange the code, and to set thephone to request the code, see"Security settings" on page 21.• PIN code: The PIN (PersonalIdentification Number) codeprotects your SIM card againstunauthorised use. The PIN code isusually supplied with the SIM card.Set the phone to request the PINcode each time the phone isswitched on, see "Security settings"on page 21.■ Overview of thefunctions of the phoneThe Nokia 3128 phone providesvarious practical functions, such asCalendar, Clock, and Alarm clock,which are handy for your everydayuse. Your phone also supports, forexample:• GPRS (General Packet RadioService) technology, for sendingand receiving data over a networkusing IP (Internet Protocol).• The Multimedia messaging service(MMS). Refer to "Multimediamessages" on page 13.• Polyphonic sounds can be used asringing tones. Your phone supportsboth MIDI and SMAF formatpolyphonic tones.9235874_3128_en.book Page vii Monday, November 29, 2004 2:17 PM