135
Glossary
134
Glossary
Dual Band
Ability to operate with both DCS (1800 MHz)
and GSM (900 MHz) networks. The phone
automatically uses the network with the
strongest signal and even switches networks
during a call within the same operator’s
network.
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.
Phone 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.
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.
SDN (Service Dialling Numbers)
Telephone numbers supplied by your network
provider and giving access to special services,
such as voice mail, directory inquiries, customer
support and emergency services.
SIM (Subscriber Identification Module)
Card containing a chip with all the information
required to operate the phone (network and
memory information, as well as the subscriber’s
personal data). The SIM card fits into a small
slot on the back of the phone and is protected
by the battery.
SMS (Short Message Service)
Network service sending and receiving messages
to and from another subscriber without having to
speak to the correspondent. The message
created or received can be displayed, received,
edited or sent.
Soft Keys
Two keys marked and on the phone, the
purpose of which:
• Varies according to the function that you are
currently using.
• Is indicated on the bottom line of the display
just above the corresponding key.
Voice Mail
Computerised answering service that
automatically answers your calls when you are
not available, plays a greeting (optionally in your
own voice) and records a message.
