This recording comes from the BlackBerry Torch 9800, one of the slider phones released during BlackBerry's peak as a business and messaging device. The startup chime was part of BlackBerry OS, the operating system that ran from 1999 until it was finally discontinued on January 4, 2022. After that shutdown, the sound survived online as a piece of mobile nostalgia, shared by former owners and used by creators to signal a bygone era of physical keyboards and secure messaging.