Glossary
To help you understand the main technical terms and abbreviations used in this booklet and take full advantage of the features of your mobile phone, here are a few definitions.
Call Barring
Ability to restrict outgoing and incoming calls.
Call Diverting
Ability to re-route calls to another number.
Call Holding
Ability to put one call on standby while answering or making another call; you can then switch between the two calls, as required.
Call Waiting
Ability to inform users that they have an incoming call while engaged on another call.
CLI (Caller Line Identification) Services
Services allowing subscribers to view or block the telephone numbers of callers.
EMS (Enhanced Message Service)
Network service sending and receiving messages that include images, sounds and animations to and from another user without having to speak to the correspondent.
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Glossary 
GPRS (General Packet Radio Service)
New
GSM (Global System for Mobile Communication)
International standard for mobile phone communication, guaranteeing compatibility between the various network operators. GSM covers most European countries and many other parts of the world.
Multiparty Calling
Ability to establish a conference call involving up to five additional parties.
PIN (Personal Identification Number)
Security code that protects the phone/SIM against unauthorised use. The PIN is supplied by the service provider with the SIM card. It may be a four to
PUK (PIN Unblocking Key)
Security code used to unlock the phone when an incorrect PIN has been entered three times in succession. The eight- digit number is supplied by the service provider with the SIM card.
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