ICS-2003 INTERCOM STATION
1-6
Answer-Back Facility
The primary function of answer-back facility is to answer or call other stations or
interfaces not assigned to a station’s selectors. Stations and interfaces that are
assigned to a station’s selectors also can be answered or called with the
answer-back facility.
The following sections describe the use of the answer-back facility.
Answer-Back Window
The answer-back window is located above the “Answer Back” selector. It displays
a list of as many as five incoming calls. The first caller’s label is closest to the
“Answer Back” selector and is highlighted. Subsequent calls are placed to the
right of the first in the window. This list is called the answer-back stack.
Answer-Back Selector
The “Answer Back” selector answers calls from stations and interfaces that are
both assigned and unassigned to the station.
When a call arrives from a station or interface:
• The calling station’s label will be placed in the answer-back stack and be
highlighted in the answer-back window.
• The red LED will flash.
These two conditions will continue until the call is answered, or until the
answer-back time-out period lapses and the caller’s label is automatically
removed. To answer the call, push the “Answer Back” selector. The LED will stay
on steady, indicating an active talk path to the caller. The talk path is active for as
long as the selector is held.
Note: The “Answer Back” selector cannot be latched; it is a momentary-only function.
Calls from stations or interfaces assigned to station selectors will also be indicated
by their associated LEDs.
Answer-Back Label Selection
If another call or calls comes in while using the answer-back selector:
• The user will hear the caller’s voice
• The label will be placed in the answer-back stack.
To answer the next caller:
1. Push up on the “Answer Back” selector to highlight the desired label in the
answer-back stack.
2. Once the desired label is highlighted, press the selector down to talk.
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