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164
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.
ALS (Alternate Line Service)
Capability of associating two lines with one SIM
card. With this service, you can make and receive
calls on either line, as required.
Call Barring
Ability to restrict outgoing and incoming calls.
Call Diverting
Ability to reroute 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 when 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.
Glossary
165
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 guaranties continuous
connection to the Internet for mobile phone and
computer users. It is based on the Global System
for Mobile Communication (GSM) circuit-switched
cellular phone connections and the Short Message
Service (SMS).
GSM
(Global System for Mobile Communication)
International standard for cellular 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.