Specifications

General Information
2-8 Issue 11 December 1999
Figure 2-1. Call Appearance/Feature Buttons
Associated with each call appearance/feature button is a pair of lights that provide
information on the availability and status of the appearance. These lights are
described in the next part of this manual (titled “Lights”).
Any button that can be administered and is not used for a call appearance can be
assigned to an optional feature. Included in this category are buttons with two
lights (call appearance/feature buttons) and buttons with one or no lights,
intended specifically for features. Some features require light feedback to inform
the terminal user when the feature is active; others are simple, one-time
operations for which light feedback would be meaningless. Good feature
administration matches features to appropriate buttons whenever possible.
Lights
Indicator lights provide silent visual reminders to the voice terminal user regarding
lines, features, and messages taken at other locations. The lights on voice
terminals connected to a DEFINITY G1, G2, and G3, a DEFINITY ECS,
System 75, or System 85 are light-emitting diodes (LEDs) or neon lights.
On all multi-appearance voice terminals, each call appearance/feature button has
two indicator lights: a red light and a green status light. When a call
appearance/feature button is used for a feature, only the status light is
1
Usually
2
3
4
5
Administered as
Call Appearances
of Terminal’s Primary
Extension Number
Administrable
as Call Appearances
or Features
Call Appearance/Feature Buttons
6
7
8
9
10
Administrable as
Call Appearances
or Features
NOTE: Example shows button field of
7410 Plus voice terminal.
Other terminals may have different
arrangements, but Buttons 1, 2,
and 3 are always present.