The tone comes from Skype, the long-running voice and video calling app, in its Linux desktop client during a dropped call reconnection attempt. Unlike the familiar Skype ringtone, this lesser-known loop was heard in moments of failure, which is why it survived as a niche soundboard clip after Skype lost ground to apps like Zoom and Discord. It is now shared alongside sounds like the discord call tone for edits about lag, unstable internet and people vanishing mid-conversation, where the audio alone explains the problem without any dialogue.