Clear-Com ICS-21, Instruction Manual

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I C S - 2 1 / 2 1 D T S P E A K E R S T A T I O N
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Figure 1: Front Panel
Answer-Back Facility
The answer-back facility answers calls from stations or interfaces that the station
has not currently selected.
Call-Waiting Light
This dual-function light:
• is steadily lit when a call signal is received.
• flashes to indicate a call-waiting signal, which has priority over a call signal.
Answer-Back Button
This three-function button:
• sends a call signal to programmed label when the call-waiting light is off.
• directs audio to the longest-waiting call in the call-waiting stack when the
call-waiting light is flashing.
• ends the current conversation from the call-waiting stack when the
call-waiting light is steadily on.
Answer-Back Stack
The answer-back stack tracks incoming calls from any label that is not assigned
to the station. These calls are available in the order they were received. The
length of time the calls are available before they are automatically removed is set
in the configuration program.
Note: The label assigned to the station will never appear in the answer-back stack
and duplicate labels are never added.
ro
Intercom Level
Answer Back
Talk
Program Level
Mic
Call Waiting
• The answer-back facility
offers several features
including an answer-back
button, a call-waiting
light, and the ability to
answer subsequent calls
from unselected labels.
• The ICS-21/21DT
features intercom and
program-level controls.
• The internal microphone
provides hassle-free use.