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3.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 Forwarding
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 swap between the two calls, as required.
Call Waiting
A Network service to inform users that the user has another call
during a call.
CLI (Caller Line Identification) Services
Services allowing subscribers to view or block the telephone numbers of
callers.
GPRS (General Packet Radio Service)
New non-voice value-added service that allows information to be sent and
received across a mobile telephone network. GPRS guarantees continuous
connection to the Internet for mobile phone and computer users. It is based
on the Global System for Mobile Communication (GSM) circuit-switched
mobile phone connections and the Short Message Service (SMS).
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 eight-digit number and can be changed, as required.
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.
Roaming
Use of your phone when you are outside your home area (when travelling
for example).
