User manual
MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111
Issue 1
February 1998
Glossary
Page GL-15
I
Home screen Display normally shown on an MLX display telephone;
shows time, date, and call information, and shows when
some features are in use.
host Telephone company or other switch providing features and
services to the system users, usually when the system is
operating in
Behind Switch mode
.
hub system In
private network
that is arranged in a
star configuration
,
the communications system through which all calls across
the network pass.
Hybrid/PBX mode One of three modes of system operation, in which the
system uses line/trunk
pool
s and
ARS
in addition to
personal lines
. Provides a single interface (SA buttons) to
users for both internal and external calling. See also
Behind
Switch mode
and
Key mode
.
ICLID (Incoming Call Line Identification) See
Caller ID
.
ICOM buttons (intercom buttons) Telephone buttons that provide access
to inside system lines for calling other extensions or
receiving calls from them.
immediate-start
tie trunk
Tie trunk
on which no start signal is necessary; dialing can
begin immediately after the trunk is seized.
in-band signaling See
robbed-bit signaling
.
inside dial tone A tone users hear when they are off-hook on an
SA
or
ICOM
button
.
Inspect screen Display screen on an MLX display telephone that allows the
user to preview incoming calls and see a list of the features
programmed on line buttons.
Integrated
Administration
Capability of
IS III
that simplifies the programming of
common information for the system,
AUDIX Voice Power
,
and, if it is also installed,
Fax Attendant System
.
Integrated
Services Digital
Network
See
ISDN
.
Integrated
Solution II/III
See
IS II/III
.
Integrated Voice
Power Automated
Attendant
IS II
application that automatically answers incoming calls
with a recorded announcement and directs callers to a
department, an extension, or the system operator.
intercom buttons See
ICOM buttons.
interface Hardware and/or software that links systems, programs, or
devices.
intersystem calls In a
private network
, calls between a local extension and a
local or non-local dial plan
extension.