The 'Sicoob fone' ringtone circulates on Brazilian soundboards and WhatsApp audio compilations as a ready-made telephone ring, where the Sicoob name likely comes from whoever first uploaded or labelled the file rather than any official release. With just over ten seconds of clean ringing, it became a handy filler for prank-call videos and comedy sketches built around an interrupting phone. It sits alongside other alert sounds such as a discord call tone and a discord notification ping on meme soundboards, and its staying power comes from pure utility: everyone instantly recognises a ringing phone, so the gag needs no setup.