Otis has made elevators since the company was founded in 1853, and its lifts are installed in offices, hotels and apartment blocks around the world. Modern Otis cars use automated floor announcements to help passengers, especially visually impaired riders, know where they have arrived. Short recordings like this third floor call are shared online by lift enthusiasts who film and archive different models, chimes and voice types. The clip has since been reused outside that hobby as a familiar, everyday sound that instantly signals an elevator journey.