DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506 Issue 1
April 2000
Glossary and abbreviations
1637
IASInter-PBX Attendant Service
ICCIntercabinet cable or intercarrier cable
ICDInbound Call Director
ICDOS
International Customer-Dialed Operator Service
ICHT
Incoming call-handling table
ICI Incoming call identifier
ICMInbound Call Management
IDDD
International Direct Distance Dialing
IDFIntermediate 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 dig-
its.
IMTIntermachine trunk
in Inch
INADS
Initialization and Administration System
ICLID
Incoming Caller ID
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.
information exchange
The exchange of data between users of two different systems, such as the switch and a host computer, over a
LAN.
Information Systems Network (ISN)
A WAN and LAN with an open architecture combining host computers, minicomputers, word processors,
storage devices, PCs, high-speed printers, and nonintelligent terminals into a single packet-switching system.