3.14 Glossary of TermsDTMFDual Tone Multiple Frequency tones. The numeric keys 0 to 9, and ∗ and # will generatedifferent DTMF tones when pressed during conversation. These are used to access voicemail, paging and computerised home banking.GSM Global System for Mobile communications. The name given to the advanced digitaltechnology that your telephone uses.Home country The country where your home network operates.Home network The GSM network on which your subscription details are held.Lock code Used for security of your telephone. Factory set to “0000”.Message CentreWhere messages are sent before they are forwarded onto their destination. The MessageCentre telephone number may be programmed into your SIM or supplied by your serviceprovider.NetworkoperatorThe organisation responsible for operating a GSM network. Each country will have at leastone network operator.Password Used for the control of the call bar function. Supplied by your service provider.PIN Personal Identification Number used for SIM security. Supplied by your service provider.PIN2 Personal Identification Number used for the control of Fixed Dial Memory and call chargemetering. Supplied by your service provider.PUK/ PUK2 PIN/PIN2 Unblocking Key. Used to unblock the PIN/PIN2. Supplied by your service provider.Registration The act of locking on to a GSM network. This is usually performed automatically by yourtelephone.Roaming The ability to use your telephone on networks other than your Home network.Service provider The organisation responsible for providing access to the GSM network.SIMSubscriber Identification Module. A small smart-card which stores unique subscriber anduser-entered information such as Phone Book, Fixed Dial Memory and short messages.Supplied by your service provider.SupplementaryserviceNetwork-controlled GSM functions which your telephone will support. Supplementary servicesmay only be available on a subscription bases.Wild numbers Spaces in a stored telephone number. When the telephone number is recalled pressing anumeric key will fill in a space. This can be used to restrict dialling to a specific area.MCUK980101C8 Section 3 Issue 1Service Manual 3 - 15 Revision 0OPERATING INSTRUCTIONS