MSN Messenger, later renamed Windows Live Messenger, was Microsoft's instant messaging service that dominated online chat in the 2000s before shutting down in 2013. Its call sounds were built into the desktop client for voice and video chats. Clips like this one survived through soundboards and meme edits after the service closed, often paired with the Discord Notification for then-and-now jokes, or used instead of a modern Discord call sound to signal an old-school internet moment that older viewers instantly recognise.