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Glossary of Terms
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.
Line Identification Services
Service allowing subscribers to view or block the
telephone numbers of callers.
Multi-party Calling
Ability to establish a conference call involving up to
five additional parties.
Phone’s Password
Security code used to unlock the phone when you
have selected the option to lock it automatically each
time it switches on.
PIN (Personal Identification Number)
Security code that protects the phone 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.