AT&T System 85 - Manual (Page 7)

CHAPTER 2. DESCRIPTION
CHAPTER
Terms You Need To Know
2. DESCRIPTION
Certain terms used in this guide have meanings unique to DEFINITY Generic 2 and System
85 console operation. For your convenience, these terms are defined here.
Audible Ring— The ring you hear at the console when an incoming call has been connected
to an idle loop and the call is waiting to be answered.
Extension Number— The number assigned to a voice terminal within the system.
Feature— A specifically defined function or service provided by the system.
Loop— An appearance button on the console. An idle loop button must be depressed to
answer or originate calls. A loop gets you “into the system.”
Console— A voice terminal equipped with several appearance buttons for the same extension
number. This terminal allows the user to handle more than one call, on that extension
number, at the same time.
Queue— An ordered sequence of calls waiting to be processed.
Trunk Group— Telecommunications channels assigned as a group for certain functions.
Tones
You will hear the following tones when you are operating the console:
ATTENDANT RELEASE LOOP (ARL) TIMED-REMINDER TONE
A high-pitched tone, on for about 1/3 second and off for about 1 second—an ARL call has
been held off the console for longer than the timed interval established for your system.
RINGBACK TONE
A low-pitched tone repeated 15 times a minute—the electronic version of the conventional
signal you hear when the telephone you have dialed is ringing.
AUTOMATIC ROUTE SELECTION (ARS) WARNING TONE
A short burst of tone—the call is being completed on a toll trunk.
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