Skype grew into one of the most widely used desktop calling apps of the 2000s and 2010s, and its Windows version used a small set of distinctive notification sounds for signing in, receiving messages, and logging out. The logout chime became familiar to regular users because it marked the exact moment a session ended. As Skype faded from everyday use, the sound survived on soundboards and in nostalgia edits, where creators reuse it as shorthand for leaving a call, closing a chat, or ending an online era.