Other InformationGlossary of TermsDTMF Dual Tone Multiple Frequency tones. The numeric keys 0 to 9, and* and # will generate different DTMF tones when pressed duringconversation. These are used to access voice mail, paging andcomputerised home banking.GSM Global System for Mobile communications. The name given to theadvanced digital technology 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 Centre Where messages are sent before they are forwarded onto theirdestination. The Message Centre number may be programmedinto your SIM or supplied by your Service Provider.Networkoperator The organisation responsible for operating a GSM network. Eachcountry will have a different network operator.Password Used for the control of the call bar. Supplied by your ServiceProvider.PIN Personal Identification Number used for SIM security. Supplied byyour Service Provider.PIN2 Personal Identification Number used for the control of Fixed DialStore and call charge metering. Supplied by your Service Provider.PUK/ PUK2 PIN/PIN2 Unblocking Key. Used to unblock the PIN/PIN2. Suppliedby your Service Provider.Registration The act of locking on to a GSM network. This is usually performedautomatically by your telephone.Roaming The ability to use your telephone on networks other than yourHome network.Service Provider The organisation responsible for providing access to the GSMnetwork.22Other Information