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
- EG – 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
- PC – 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)
- SW – Software
- TTL – Transistor-Transistor Logic – a standard digital technology defining voltage for levels 0 and 1
- PSTN – Public Switched Telephone Network