You are configuring an auto-attendant on Cisco Unity Express. You are using the default aa.aef script. The company is family owned, so many users have the same surname. In addition, the business…

The businessOpen and businessClosed prompts are configurable audio parameters within the aa.aef script that play when the business is open or closed, allowing administrators to re-record or upload updated announcements each time the hours of operation change throughout the year.

Although dialbyfirstname is a parameter in the aa.aef script, it enables dial-by-first-name for the directory feature and is not one of the settings that addresses the business hours or closure day requirements described in the question.

The businessSchedule is a system-level setting in Cisco Unity Express used to define open/closed time windows, not a parameter configurable directly within the aa.aef script's application parameters interface.

The holidayPrompt parameter in the aa.aef script specifies a prompt that plays on defined holiday or irregular closure days, directly addressing the need to handle frequent schedule changes without restructuring the entire auto-attendant configuration.

Cisco Unity Express does not have a userid alias setting designed to prevent overlapping names in the auto-attendant dial-by-name directory; this option describes a feature that does not exist in CUE.