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68 Glossary
LAN
Local Area Network.
ME
Mobile Equipment.
MO
Mobile Origination. For example, an SMS message sent
from a mobile terminal.
MMI
Man-Machine Interface.
MS
Mobile Station.
MT
Mobile Termination.
PC
Personal Computer.
PCS
Personal Communications Services, often used to describe
GSM1900 networks.
PC Card
A card having physical and electrical characteristics
specified by PCMCIA providing extra functionality
when inserted into a laptop PC. Typical examples are
modems and network cards. Type refers to the thickness
of the card. The EDGE PC Card is type II.
PCMCIA
Personal Computer Memory Card International
Association – defines specifications for PC Cards.
www.pcmcia.org.
PDP
Packet Data Protocol.
Phone book
A memory in the SIM card where phone numbers can
be stored and accessed by name or position.
PSTN
Public Switched Telephone Network, for example ordinary
analogue phone line for speech and/or computer modem.
RADIUS
Remote Access Dial-In Service. Facility at the ISP
or corporation to manage remote data connections.
RX
Receive
SC
Service Centre (for SMS).
Service Provider
A company that provides services and subscriptions
to EDGE PC Card users.
SIM card
Subscriber Identity Module card – a card that must be
inserted in any GSM-based mobile terminal. It contains
subscriber details, security information and memory for
a personal directory of numbers. The card can be a small
plug-in type or credit card-sized, but both types have the
same functions. The EDGE PC Card uses the small plug-
in card.
SMS
Short Message Service. Allows messages of up to 160
characters to be sent and received via the network operator's
message centre to a EDGE PC Card.
TCP/IP
Transmission Control Protocol/Internet Protocol.
TCP/IPv4
TCP/IP Version 4. Most widely implemented form of
TCP/IP today having a 4 byte address format such as
212.161.127.136.
TE
Terminal Equipment. Generic term for GSM terminals
such as phones and PC cards.
Terminal Adaptor
Generic term for the equipment terminating a digital comms
line such as an ISDN2 line. The EDGE PC Card is a
Terminal Adaptor since it interfaces to GSM digital data
services.
TLS
Transport Layer Security. Used by Web browsers,
for example.