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Glossary
GL-2
Issue 2 July 1997
Dial Line
A telephone line which is part of the Public Switched Telephone Network
and is accessed through the DEFINITY Extender’s automatic dial-up
function.
F
Facility
Transmission facilities. Usually a two metallic pair set of cords, but can be
Telco carriers, T-1, microwave or dial-up telecommunications lines.
L
LED
Light-emitting diode. A semiconductor diode which emits light when a
current is passed through it, indicating that the power is on.
O
On-premise Lines
Communication lines (usually twisted-pair) that are used to connect the
PBX to the DEFINITY telephone.