2 list of abbreviations – 2N StarGate/BlueTower v5.5 User Manual

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7.2 List of Abbreviations

List of Abbreviations in the document:

APN – Access Point Name – necessary for the GPRS service
CLIP – Calling Line Identification Presentation
CSD – Circuit Switched Data

COM

PC serial port

–

DTMF

Dual Tone Multi Frequency – tone dialling

–

StarGate/BlueTower

–

ESME –

External Short Messaging Entity

FSK

Frequency Shift Keying

–

FXO

an interface electrically identical with a standard telephone (opposite side

–

= FXS interface)
FXS

a telephone interface allowing standard telephone connection (opposite

–

side = FXO interface)
FW

Firmware – similar to SW, a term for the central microprocessor program

–

GSM

Group Switched Mobile system – the present standard digital mobile

–

telephone network
GPRS

General Packet Radio Service – high–speed data transmission for GSM

–

networks
HW

Hardware – an electronic device, circuit, board, component, etc. in this

–

context
P(A)BX

Private (Automatic) Branch Exchange

–

Personal Computer (based on the IBM PC standard)

–

PIN

Personal Identification Number – a SIM card securing password

–

POP3 – Post Office Protocol v3
PUK

Personal Unblocking Key – a password used to unblock a blocked SIM card

–

after repeated wrong PIN entering
RS-232C

a PC serial port standard

–

SIM

Subscriber Identity Module – a chip-equipped module to be inserted in a

–

GSM device for identification
SMPP –

Short Message Peer to Peer

–

SMSC

Short message service center

SMTP –

Simple Mail Transfer Protocol

SMS

Short Message Service, a term for the system and one unit (message)

–

Software

–

TTL

Transistor-Transistor Logic – a standard digital technology defining voltage

–

for levels 0 and 1
PSTN

Public Switched Telephone Network

–

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