Operators, System Administrators and system attendants can use Operator Settings (Feature 982) to change operator settings from a telephone that has a Feature button.
You can use Operator Settings to:
set the system attendant extension
change the Operator password
change the Attendant Available status
change the Business Open status
change the Answer Lines status
set the Service Mode for Call Center skillsets to Day, Night or 24 hour
Feature 982 (0perator Settings) gives a system attendant equivalent functionality from a telephone set.