AbbreviationsADN Abbreviated Dialling NumbersALS Alternate Line ServiceAoC Advice of ChargeCLI Calling Line IdentificationCSD Circuit Switched DataDTMF Dual Tone Multi FrequencyEMS Enhanced Message ServiceFDN Fixed Dialling NumbersGPRS General Packet Radio ServiceGSM Global System for Mobile communicationsLCD Liquid Crystal DisplayLED Light Emitting DiodeMMS Multimedia Message ServicePIN Personal Identification NumberPUK Personal Unlocking KeySDN Service Dialling NumbersSHF Simple Hands Free kitSIM Subscriber Identity ModuleSMS Short Message Service
