AT&T 3.0 manual Ii/Iii

Glossary

immediate-start tie	Tie trunk on which no start signal is necessary; dialing can
trunk	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	Capability of IS III that simplifies the programming of
Administration	common information for the system, AUDIX Voice Power,
	and, if it is also installed, Fax Attendant System.
Integrated Services	See ISDN.
Digital Network
Integrated Solution	See IS II/III.
II/III
Integrated Voice	IS II application that automatically answers incoming calls
Power Automated	with a recorded announcement and directs callers to a
Attendant	department, an extension, or the system operator.
intercom buttons	See ICOM buttons.
interface	Hardware and/or software that links systems, programs, or
	devices.
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 Ill) Set of
	UNIX System-based applications that augments and
	provides additional services using the system.

GL–18Maintenance and Troubleshooting