The call ended tone comes from everyday mobile and voice call interfaces, where a short beep confirms the line has disconnected. As short form video and soundboard culture grew, creators lifted that familiar everyday signal and began using it out of context as a joke in itself. Because almost everyone recognises the sound from their own phone, it needs no setup and works across languages. It remains popular for prank calls, gaming lobbies and reaction edits where an abrupt ending says more than dialogue.