Samsung SGH-X400 User Manual

Also see for SGH-X400: Service manual Manual

Contents

Glossary150PIN (Personal Identification Number)Security code that protects the phone/SIM againstunauthorised use. The PIN is supplied by theservice provider with the SIM card. It may be a fourto eight-digit number and can be changed, asrequired.PUK (PIN Unblocking Key)Security code used to unlock the phone when anincorrect PIN has been entered three times insuccession. The eight-digit number is supplied bythe service provider with the SIM card.RoamingUse of your phone when you are outside your homearea (when travelling for example).SDN (Service Dialling Numbers)Telephone numbers supplied by your networkprovider and giving access to special services, suchas voice mail, directory inquiries, customer supportand emergency services.SIM (Subscriber Identification Module)Card containing a chip with all the informationrequired to operate the phone (network andmemory information, as well as the subscriber’spersonal data). The SIM card fits into a small sloton the back of the phone and is protected by thebattery.Glossary151SMS (Short Message Service)Network service sending and receiving messages toand from another subscriber without having tospeak to the correspondent. The message createdor received can be displayed, received, edited orsent.Soft KeysTwo keys marked and on the phone, thepurpose of which:• Varies according to the function that you arecurrently using• Is indicated on the bottom line of the display justabove the corresponding keyTri BandAbility to handle any of the following types ofnetwork: GSM 900, GSM 1800, combined GSM 900/1800 and GSM 1900 MHz bands, for greater callsuccess and wider roaming.Your phone automatically searches for the lastnetwork used. If, for any reason, this network isunavailable, your phone will attempt to registerwith a different network.Voice MailComputerised answering service that automaticallyanswers your calls when you are not available,plays a greeting (optionally in your own voice) andrecords a message.