MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111 Issue 1
February 1998
Glossary
PageGL-16
JK
Intuity
CONVERSANT Voice response application that automatically answers and
routes calls and executes telephone transactions.
I/O device (input/output device) Equipment that can be attached to a
computer internally or externally for managing a computer
system’s input and output of information.
IROB protector (In-Range Out-of-Building protector) Surge-protection
device for off-premises telephones at a location within 1000
feet (305 m) of cable distance from the control unit.
IS II/III (Integrated Solution II or Integrated Solution III) Set of UNIX
System-based applications that augments and provides
additional services using the system.
ISDN (Integrated Services Digital Network) Public or private
network that provides end-to-end digital connectivity for all
services to which users have access by a limited set of
standard multipurpose user and

network

interfaces

;
provides digital circuit-switched or packet-switched
connections within the network and to other networks for
national and international digital connectivity.
ISDN 7500B Data
Module Data communications device that allows connection
between an RS-232

DTE

device and the control unit by
MLX extension jacks on the 008 MLX or 408 GS/LS-M LX
module.
ISDN terminal
adapter (Integrated Services Digital Network terminal adapter) A
device that connects the communications system with

data

terminal equipment (DTE)

; for example, an

ISDN terminal

adapter

or
modem
acting as

data communications

equipment (DCE)

for a PC.
ISDN terminal
adapter data
station
A type of data station that includes an ISDN terminal
adapter as its DCE. It may also include an MLX telephone
for simultaneous voice and data (ISDN terminal adapter
data-only station). These data stations connect to MLX
extension jack modules for digital transmission of data over
a DS1 facility.
jack Physical connection point to the system for a telephone,
line/trunk, or other device. Also called “port.”
kbps (kilobits per second)
Key mode One of three modes of system operation, in which the
system uses personal lines on line buttons for outside calls,
with a separate interface (

ICOM buttons

) for inside calling.
See also

Behind Switch mode

and

Hybrid/PBX mode.