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82 Glossary
GSM 900
The GSM system family includes GSM 900, GSM 1800
and GSM 1900. There are different phases of roll-out for
the GSM system and GSM phones are either phase 1 or
phase 2 compliant.
GSM 1800
Also known as DCS 1800 or PCN, this is a GSM digital
network working on a frequency of 1800 MHz. It is used
in Europe and Asia-Pacific.
GSM 1900
Also known as PCS. Refers to a GSM system running in
the 1900MHz band. Used in the USA and Canada, for
instance.
Hotspot
An area in which a WLAN service exists.
HSCSD
High Speed Circuit Switched Data.
HTML
HyperText Markup Language.
HTTP
HyperText Transfer Protocol.
IEEE
Institute of Electrical and Electronic Engineers.
ISDN
Integrated Services Digital Network. Can provide
circuit-switched data connections in multiples of
64 kbps.
ISP
Internet Service Provider.
kbps
Kilobits per second - rate of data flow.
LAN
Local Area Network.
MAC
Media Access Control.
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.
NDIS
Network Driver Interface Specification. A Windows
device driver interface enabling a single NIC to support
multiple network protocols. For example, TCP/IP and IPX.
NIC
Network Interface Card.
OTP
One Time Password. A security procedure where the
user is given a new password for each login.
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 GC79 is type II.
PCMCIA
Personal Computer Memory Card International
Association – defines specifications for PC Cards.
www.pcmcia.org