ISDN DEFINITY
Extender 2300EU/2100EU
71
Glossary
L
LED
Light-emitting diode. A semiconductor diode which
emits light when a current is passed through it,
indicating that the power is on.
P
PBX
Private Branch Exchange.
R
Remote Module
The DEFINITY
Extender module that connects to the
remote DEFINITY telephone.
S
Service Profile Identifier
A Service Profile Identifier (SPID) is a number that
identifies to the ISDN network the type of service to
be provided. Each SPID is attached to a Directory
Number. Each module must be programmed with two
SPIDs, one for each Directory Number. See Directory
Number.
Switch Module
The DEFINITY Extender module that connects to the
DEFINITY ECS.