Comdial DSU II SCS84125J Station User's Manual page 113

E
E&M Tie Lines
In telephony, a separate pair of leads to your station which are
used by system operators for signaling and supervisory pur-
poses.
Exclusive Hold
Only the telephone placing the call on hold can retrieve it.
Executive Override Breaking into a conversation at a busy
called telephone. This intrusion is announced by several quick
tone bursts over the conversation.
H
Hands free Answer Inhibit
A telephone can be set to block voice calls sent to it over the
speaker.
Hookflash
Action that occurs when the TAP button is pressed. Needed for
activating host system features.
Hookswitch
The switch on a telephone which, when depressed manually or
by the handset, disconnects a call.
I
IMIST
Module which allows the connection of an external device to a
Comdial digital telephone.
Industry Standard Telephone (IST)
Analog telephone with only a basic 12 button keypad and no
advanced features
Intercom
An internal communication system that allows you to dial
another station at your office or location without connecting to
the outside telephone system.
August, 03
DSUII LCD Speakrphone User's Guide
Comdial 103