This sound is associated with Skype, the internet calling and messaging app that became widely used on computers and mobile devices in the 2000s and 2010s. Its ringtone and notification sounds became instantly recognisable through voice calls, family video chats, online gaming, and work meetings. Online, the clip still appears in memes because it quickly signals an incoming call without any explanation. It also fits nostalgic edits about early social apps and the era of desktop communication.