Skype launched in 2003 and became the default way many people made video calls through the late 2000s and 2010s, especially on MacBooks where this softer MacOS ring was part of everyday work and family life. As Skype faded and apps changed, the sound survived as a nostalgia cue, shared on soundboards and reused in edits long after most users had moved on to a Discord call or a phone FaceTime. Its clean loop and unmistakable rhythm now instantly signal an incoming online call, which is why creators still reach for it in memes, skits and throwback montages.