Glossary
Bearer
Path over which data flows. Specifically in CSD and HSCSD, the type of telephony link from the GSM network to the server - V PSTN or ISDN.
bps
Bits per second - rate of data flow.
COM Port
Defines a serial/RS
of the PC) or virtual (COM5 port communicating with
a PC card modem)
CS
Circuit Switched. Connection from A to B which has
a fixed bandwidth and is maintained over a period of time, for example a voice telephone call.
Coding Scheme. Determines the data rate per timeslot
in GPRS.
CSD
Circuit Switched Data. CSD is a GSM service providing
a CS data connection at a rate of 9.6 or 14.4 kbps.
DUN
e-GSM
Extended GSM. New frequencies specified by the European Radio Communications Committee (ERC)
for GSM use when additional spectrum is needed
GPRS
General Packet Radio Services.
GSM
Global System for Mobile Communications. GSM is the
world’s most
now operating in over 160 countries around the world.
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
GSM 1900
Also known as PCS. Refers to a GSM system running
in the 1900MHz band. Used in the USA and Canada,
for instance.
HSCSD
High Speed Circuit Switched Data.
HTML
HyperText Markup Language.
HTTP
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