ETSI

ETSI stands for the European Telecommunications Standards Institute. This is a group of people who work together to create rules for how things should work in the world of telecommunication. They make sure all the things we use to talk to each other (like phones and internet connections) are safe, work well, and are easy to use. Think of it like a group of grown-ups who make sure your toys are safe to play with and work properly. They make sure that companies who make these things follow their rules, so that when you pick up a phone, you know how to use it, and it works the way it's supposed to!