Skype was launched in 2003 as a messaging and calling app and became a familiar part of desktop computing, especially on Windows, where its short notification sounds marked incoming calls, messages and sent chats. The sent message sound circulated online as users shared app sounds for edits, memes and soundboards, often alongside other chat alerts such as a Discord notification. It remains in use because it is instantly recognisable, brief enough to drop into a scene without breaking pacing, and tied to a period when instant messaging shaped everyday online communication.