OPERATING INSTRUCTIONSIssue 1 Section 3 MCUK000601C8Revision 0 – 18 – Service Manual3.16. Glossary of TermsTerm DefinitionDTMF Dual Tone Multiple Frequency tones. The numeric keys 0 to 9, and * and # will generate differentDTMF tones when pressed during conversation. These are used to access voice mail, paging andhome banking services.GSM Global System for Mobile communications. The name given to the advanced digital technology that thetelephone uses.Home country The country in which the home network operates.Home network The GSM network on which subscription details are held.Hot Key Dial Hot Key Dial allows quick access to numbers stored in the Phonebook of Service Dial Number list. Thesource of the Hot Key Dial may be defined by the user or preprogrammed by the Service Provide. It ismost likely to be preprogrammed to the Service Dial Numbers by the Service Provider.Lock code Used for security of the telephone. Factory set to “0000”.Message Centre Where messages are sent before they are forwarded onto their destination. The Message Centretelephone number may be programmed into the SIM or supplied by the service provider.Network operator The organisation responsible for operating a GSM network. Each country will have at least onenetwork operator.Password Used for the control of the call bar function. Supplied by the service provider.PIN Personal Identification Number used for SIM security. Supplied by the service provider.PIN2 Personal Identification Number used for the control of Fixed Dial Memory and call charge metering.Supplied by the service provider.PUK/ PUK2 PIN/PIN2 Unblocking Key. Used to unblock the PIN/PIN2. Supplied by the service provider.Registration The act of locking on to a GSM network. This is usually performed automatically by the telephone.Roaming The ability to use the telephone on networks other than the Home network.Service DialNumbersService Dial Numbers are predefined numbers that allow the user to access a set of special servicesprovided by the Service Provider. For example billing information or access to Voice Mail.Service provider The organisation responsible for providing access to the GSM network.SIM Subscriber Identification Module. A small smart-card which stores unique subscriber and user-enteredinformation such as Phone Book, Fixed Dial Memory and short messages. Supplied by the serviceprovider.SupplementaryserviceNetwork-controlled GSM functions supported by the telephone. Supplementary services may only beavailable on a subscription bases.Wild numbers Spaces in a stored telephone number. When the telephone number is recalled pressing a numeric keywill fill in a space. This can be used to restrict dialling to a specific area.