175
OTHER FUNCTIONS
174
DTMF (Dual-tone Multi Frequency)
You send DTMF signals when you enter
numbers by pressing the digit keys.
Hands-Free
A feature that permits a driver to use a wireless
phone without lifting or holding the handset
an important safety feature for automobiles,
tractors and most other motorized vehicles.
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.
LCD (Liquid Crystal Display)
Commonly used to refer to the screen display
on the wireless phone.
LED (Light Emitting Diode)
Commonly used to refer to a small light on the
wireless phone or on the Desktop Charger. The
lights on the charger indicate that battery
charging is taking place.
PIN (Personal Identification Number)
Security code that protects the phone against
unauthorized 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 traveling for example).
SIM (Subscriber Identification Module)
A card containing an integrated circuit. The
circuit contains the information about the
phone operation.
SMS (Short Message Service)
A network service sending and receiving
messages to and from other persons without
the need to call. The incoming messages
immediately appear on the display, and you
can edit, receive and send the messages.
