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List of telephony terminology

This is a List of telephony terminology and acronyms which relate to telephony networks.

Contents: Top - 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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

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

I

infrastructure
interactive voice response (IVR)

L

O

operator assistance

P

R

S

T

V

W

Z

Zenith number

Acronyms

Acronym Name Notes 1ESS Number 1 Electronic Switching System US 1FR Flat rateservice 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 IdentificationUS AMA Automatic Message AccountingUS BOK Unblocking UK CCIS Common Channel Interoffice Signaling CID Caller ID CLI Caller Line IdentificationEurope CLID Caller Line IDUK CTI Computer telephony integration COSMOS Wire records DDCO Direct Dial Central Office (Opposite of DID) US DDD Direct Distance DialingUS DDI Direct Dialing InUK DECT Digital Enhanced Cordless Telecommunications DID Direct Inward DialingUS DMS Digital Multiplex SystemCan DNIS Dialed Number Identification SystemUS 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 UKand IndiaISDN Integrated Services Digital Network IVR interactive voice response MDF Main Distribution Frame MF Multi-frequencyUS PABX Private Automatic Branch eXchangeEurope PBX Private Branch eXchangeUS PMBX Private Manual Branch eXchange UK POTS plain old telephone service PSTN Public Switched Telephone Network RCMAC Recent Change Memory Administration CenterUS REN ringer equivalency number SMS Short Message Serviceor text messages SF Single Frequency supervision tone (2600) US SP Lock UnlockingUK SS7 Signaling System 7 STD Subscriber trunk diallingUK and India T-CXR T-carrierUS 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 ServiceUS WTAI Wireless Telephony Applications Interface VOIP Voice over Internet Protocol

Categories: Telephony | Telecommunications terms

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