BellCommander 5.0

It' s an Easy-to-use system for school bells, factory bells, paging, intercom, and emergency notification.

You can play school/factory bells, announcements, and music over your existing PA or intercom system

Also you can play scheduled audio and send live audio pages to PCs or Macs around your organization. You can use network audio players to play scheduled audio and live pages in classrooms and other buildings.