Motorola MCS 2000 User Manual page 253

Detections Required Use the UP/DOWN arrow keys to scroll through the available choices
or directly enter the desired value. This field dictates the number of
valid tone detections (per observation window) required within the
last 8 observation windows to qualify a Quik-Call II tone detection.
Valid values are integers ranging from 1 to 7.
The default is 6.
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