Skype launched in 2003 and became the default voice and video calling app for many desktop users, with a dedicated client for Linux alongside Windows and Mac versions. Its incoming call ringtone became embedded in internet culture through years of daily use, screen recordings, and early YouTube videos. As Skype declined and users moved to apps like the discord call sound for gaming and group chats, the original ringtone survived as a nostalgic reference, still used to instantly set a scene in the era of early VoIP calls.