This is a List of telephony terminology and acronyms which relate to telephony networks.
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B[]
- Blue box - a device that was used to bypass the normal long distance call switching tones typically used to obtain free calls.
C[]
- call originator - (or calling party, caller or A-party) a person or device that initiates a telephone call by dialling a telephone number.
- call waiting - a system that notifies a caller of another incoming telephone call by sounding a sound in the earpiece.
- called party
- Caller
- calling party
- conference call (multi-party call)
- COCOT
E[]
- emergency telephone number
- end instrument
- Engset calculation
- Erlang unit
F[]
- fax - (contraction of facsimile) a device connected to the telephone network to enable documents to be scanned and sent to a receiving fax machine.
H[]
- Handoff
- Handover
- help desk
- Hunt Group
I[]
- infrastructure
- interactive voice response (IVR)
L[]
- line
- local loop
- long-distance operator
O[]
- operator assistance
P[]
- person-to-person
- Pupinization
- Plain old telephone service, or "POTS"
R[]
- red telephone box
- Red box
- ringer equivalency number (REN)
- Ringing signal
- rural radio service
S[]
- Smartphone
- station-to-station
T[]
- Tandem switch
- telemarketing
- telephone
- telephone booth
- telephone call
- telephone card
- telephone directory
- telephone exchange
- telephone tapping
- Teletraffic engineering
- trap and trace
- TWX
V[]
- vertical service code
- voicemail
W[]
- Western Union
- Wide Area Telephone Service (WATS)
- WATS line
- wireless network
- Wi-Fi
Z[]
- Zenith number
Acronyms[]
Acronym | Name | Notes |
---|---|---|
1ESS | Number 1 Electronic Switching System | US |
1FR | Flat rate service | US |
2G | second-generation mobile telephone | |
2.5G | Enhanced 2G mobile telephone | |
3G | third-generation mobile telephone | |
4WTS | Four-wire termination set | US |
ACD | Automatic Call Distribution/Director | |
ACTS | Advanced Coin Telephone Service | US |
ADSL | Asymmetric Digital Subscriber Line | |
ANI | Automatic Number Identification | US |
AMA | Automatic Message Accounting | US |
BOK | Unblocking | UK |
CCIS | Common Channel Interoffice Signaling | |
CID | Caller ID | |
CLI | Caller Line Identification | Europe |
CLID | Caller Line ID | UK |
CTI | Computer telephony integration | |
COSMOS | Wire records | |
DDCO | Direct Dial Central Office (Opposite of DID) | US |
DDD | Direct Distance Dialing | US |
DDI | Direct Dialing In | UK |
DECT | Digital Enhanced Cordless Telecommunications | |
DID | Direct Inward Dialing | US |
DMS | Digital Multiplex System | Can |
DNIS | Dialed Number Identification System | US |
DSL | Digital Subscriber Line | |
DTMF | dual-tone multi-frequency | |
FDM | Frequency-division multiplexing | |
GPRS | General Packet Radio Service | |
GSM | Global system for mobile communications | |
IDDD | International Direct Distance Dialing | US |
ILEC | Incumbent Local Exchange Carrier | US |
ISD | International Subscriber Dialling | UK and India |
ISDN | Integrated Services Digital Network | |
IVR | interactive voice response | |
MDF | Main Distribution Frame | |
MF | Multi-frequency | US |
PABX | Private Automatic Branch eXchange | Europe |
PBX | Private Branch eXchange | US |
PMBX | Private Manual Branch eXchange | UK |
POTS | plain old telephone service | |
PSTN | Public Switched Telephone Network | |
RCMAC | Recent Change Memory Administration Center | US |
REN | ringer equivalency number | |
SMS | Short Message Service or text messages | |
SF | Single Frequency supervision tone (2600) | US |
SP Lock | Unlocking | UK |
SS7 | Signaling System 7 | |
STD | Subscriber trunk dialling | UK and India |
T-CXR | T-carrier | US |
TAPI | Telephony Application Programming Interface | |
TSPS | Traffic Service Position System | |
TXE | Telephone eXchange Electronic | UK |
UAX | Unit Automatic eXchange | UK |
WAP | Wireless Application Protocol | |
WATS | Wide Area Telephone Service | US |
WTAI | Wireless Telephony Applications Interface | |
VOIP | Voice over Internet Protocol |