The marimba-style tone became widely known as the default ringtone on the original iPhone, released by Apple in 2007, and it remained closely associated with the phone as iPhones spread around the world. Because millions of people heard it every day, the sound quickly became shorthand in films, television and online videos for any incoming mobile call, even when no iPhone was on screen. Its simple, cheerful melody and instant recognition keep it useful for creators who want a phone to ring without needing to explain what is happening.