This is a list of telephony terminology and acronyms which relate to telephony networks.
A
edit- Advanced Intelligent Network, (AIN), see also IN or Intelligent Network
- Automatic number announcement circuit (ANAC)
- Automated Attendant
- ACD - Automatic Call Distribution
- Articulation score
B
edit- Blue box - a device that was used to bypass the normal long-distance call switching tones typically used to obtain free calls.
C
edit- 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 - (or callee or B-party)
- Caller
- Calling party
- Conference call (multi-party call)
- COCOT
- Cut – unexpected, and usually sudden, termination of call, line or service
D
editE
editF
edit- Fax - (contraction of facsimile) a device connected to the telephone network to enable documents to be scanned and sent to a receiving fax machine
- Frame - A distribution frame, a set of open wiring racks where circuits are cross connected to trunks and equipment
H
edit- Handoff
- Handover
- Help desk
- Howler tone (see ROH tone)
- Hunt Group
I
edit- Infrastructure
- Intelligent Network (IN)
- Interface functionality
- Inside plant
- Intelligent Network Interface Device (iNID) - replaces the Network Interface Device outside a subscriber's house like when customers subscribe to AT&T's U-verse brand of services.
- Interactive voice response (IVR)
- ISDN User Part (ISUP)