Skype became one of the most widely used internet calling and messaging apps, and its Linux version carried the same familiar notification sounds as the desktop service. When a caller left a voicemail, this brief alert told the recipient a message was waiting, a small but useful cue in an era before push notifications were everywhere. The clip now circulates on soundboards as a piece of early internet audio, kept alive by creators who use its dated, understated tone to signal missed calls, old technology and a slower online era.