Sony Ericsson GC75 Manuel d'utilisateur télécharger pdf (Page 26)

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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-232 port within the Windows®

environment. May be physical (COM1 port on the

rear

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.

CS-1 to CS-4

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

Dial-Up Networking.

e-GSM

Extended GSM. New frequencies specified by the

European Radio Communications Committee

(ERC)

for GSM use when additional spectrum is needed

(Network-dependent). It allows operators to

GPRS

General Packet Radio Services.

GSM

Global System for Mobile Communications. GSM

is the

world’s most widely-used digital mobile phone

system,

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 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.

HSCSD

High Speed Circuit Switched Data.

HTML

HyperText Markup Language.

HTTP

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