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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Glossary and Abbreviations
Page GL-26
I2
The second information channel of DCP.
I2 Interface
A proprietary interface used for the DEFINITY Wireless Business System for the radio-controller
circuit packs. Each interface provides communication between the radio-controller circuit pack
and up to two wireless fixed bases.
I3 Interface
A proprietary interface used for the DEFINITY Wireless Business System for the cell antenna units.
Each wireless fixed base can communicate to up to four cell antenna units.
IAS
Inter-PBX Attendant Service
ICC
Intercabinet cable or intercarrier cable
ICD
Inbound Call Director
ICDOS
International Customer-Dialed Operator Service
ICHT
Incoming call-handling table
ICI
Incoming call identifier
ICM
Inbound Call Management
IDDD
International Direct Distance Dialing
IDF
Intermediate distribution frame
IE
Information element
immediate-start tie trunk
A trunk on which, after making a connection with a distant switching system for an outgoing call,
the system waits a nominal 65 ms before sending the digits of the called number. This allows time
for the distant system to prepare to receive digits. On an incoming call, the system has less than
65 ms to prepare to receive the digits.
IMT
Intermachine trunk
in
Inch
INADS
Initialization and Administration System
incoming gateway
A PBX that routes an incoming call on a trunk
not
administered for Supplementary Services
Protocol B to a trunk
not
administered for
Supplementary Services Protocol B.