DP-SW20 User Manual
Appendix
© 2008 Pirelli Broadband Solutions S.p.A. All Rights Reserved.
89
A.5
G
LOSSARY
T
ERM
D
ESCRIPTION
Dual Mode Telephone
Telephone that operates with two standar elements: GSM and
WLAN
Protection
Messages that are sent as protected messages can only be read
by certain people.
Messages sent to a portable telephone by a digital telephone
are often protected if operated wirelessly.
IMEI
The identification number of GSM telephones. This number can
be used to block stolen cellular telephones.
ISP
A company that offers special services.
GPRS
Allows users to more quickly access and send data from a
cellular telephone.
GSM
Internationally recognized element for digital communication
with a field of 800 MHz, 1800 MHz and 1900 MHz. It was
introduced in 1991 and is used predominantly in Asia and
Europe but not in the USA. GSM telephones use a SIM card that
contains the user‟s information. Every GSM is programmed
immediately after the SIM card is assigned, a feature that
makes GSM telephones easy to rent or loan to others. The GSM
offers and SMS service for sending text messages of up to 160
characters to other telephones that also operate with a SIM
card.
MMS
MMS allows users to communicate multimedia data such as
images, voice messages and video clips.
PIN
This code (from 4 to 8 characters) protects the SIM card from
unauthorized users. The PIN code is usually assigned with the
SIM card.
PIN2
This code (from 4 to 8 characters) is assigned with the SIM
card. It is useful for special functions and telephone security.
Proxy
The proxyserver is a secondary server that is active between
the host server and the user server.
PUK
This code (8 characters) is an additional safety code (making it
useful for unblocking a telephone in the event that a wrong PIN
code is entered).