One Missed Call is a horror film centred on people who receive chilling voicemails from their own future selves, and its distinctive ringtone became inseparable from that premise. As clips of the tone circulated on soundboards and video platforms, creators began reusing it outside the film as a shorthand for dread, a cursed call or an unexpected scare. It remains popular because the sound is short, instantly recognisable and immediately unsettling, even for viewers who have never seen the film.