Skype grew into one of the most familiar internet calling and messaging services on Windows computers during the 2000s and 2010s, and its short notification sounds became part of everyday desktop life for millions of users. The new contact chime marked a small social moment, someone joining a contact list or appearing online, rather than a call or message. As Skype use declined, the sound survived in edits and memes as shorthand for dated technology, awkward online friendships and the era when adding someone online felt like a small event.