CHAPTER 11. GLOSSARY

Enhanced Attendant Console

This model has warning and control lamps on 12 of its trunk group select buttons (versus 6 for the basic console). The Enhanced Console may be used with V1, V2, V3, and G1; but in V1, V2, and V3, only the left six trunk group select buttons use the warning and control lamps.

Extension Number

A 1 through 5-digit number assigned to each voice terminal, certain system groups, data modules, 510 Personal Terminal, or 515 Business Communications Terminal within the system. A 1- or a 5-digit extension number is available for Version 2 and Version 3 only.

External Call

A connection between a system user and a party on the public telephone network or on a tie trunk; also referred to as an outside call.

Feature

A specifically defined function or service provided by the system.

Feature Button

A labeled button on a voice terminal or attendant console designating a specific feature.

Intercept Tone

An alternating high and low tone; indicates a dialing error or denial of the service requested.

Interface

A common boundary between two systems or pieces of equipment.

Internal Call

A connection between two users within the system; also referred to as an inside call.

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AT&T 75 Enhanced Attendant Console, Extension Number, External Call, Feature Button, Interface, Internal Call, 11-4