AtlasIED makes commercial audio and paging equipment for schools, offices, and other large buildings, and its IPX range uses network-connected speakers to deliver bells, announcements, and alerts throughout a campus. A tone like this replaces older wired bell systems with a scheduled digital chime that can be timed to the school day. Because it sounds instantly familiar to anyone who has attended school, short recordings have become useful for creators making classroom sketches, school memes, and back-to-school edits, where one ring is enough to set the scene.