4 list of abbreviations, List of abbreviations 6.4 – 2N Analogue GSM gateway 2N EasyGate PRO - Manual, 1749 v1.03 User Manual
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List of Abbreviations
6.4
75
6.4 List of Abbreviations
n
APN
Access Point Name – necessary for the GPRS service
n
CLIP
Calling Line Identification Presentation
n
CSD
Circuit Switched Data
n
COM
PC serial port
n
DTMF
Dual Tone Multifrequency - tone dialing
n
EG
EasyGate
n
FSK
Frequency Shift Keying
n
FXO
an interface electrically identical with a standard telephone (opposite side =
FXS interface)
n
FXS
a telephone interface allowing standard telephone connection (opposite side
= FXO interface)
n
FW
Firmware - similar to SW, a term for the central microprocessor program
n
GSM
Group Switched Mobile system - the present standard digital mobile telephone
network
n
GPRS
General Packet Radio Service - high-speed data transmission for GSM
networks
n
HW
Hardware - an electronic device, circuit, board, component, etc. in this context
n
HSDPA
High-Speed Downlink Packet Access – mobile network protocol for high speed
data transmit to the user (download)
n
P(A)BX
Private (Automatic) Branch Exchange
n
PC
Personal Computer (based on the IBM PC standard)
n
PIN
Personal Identification Number - a SIM card securing password
n
PUK
Personal Unblocking Key - a password used to unblock a blocked SIM card
after repeated wrong PIN entering