AT&T Merlin II Feature Module 2 System Manual page 75

4-46 Selecting Exceptions
6 The CMS administrator sets exception thresholds for various groups and
splits.
7 The CMS administrator assigns the alert numbers to any of the splits or
line groups for which thresholds are set and for which visual alerts are to
light Up when the thresholds are met or exceeded.
NOTE: If all external alert wiring and administration procedures are
complete, alerts may be assigned to specific exceptions (from the
Exception Setting screen) while CMS is managing calls.