A microwave network is like a giant telephone line in the sky! Instead of using underground cables like regular phone lines, microwave networks use radio signals that travel through the air.
British Telecom is a company in the UK that has built a big microwave network to help people make phone calls and access the internet. They put up special towers called microwave radio towers that can send and receive radio signals.
The way it works is that when you make a call or access the internet on your phone, that information is turned into tiny radio signals that travel through the air to the nearest microwave tower. The tower then sends your signals to another tower closer to where the person you're calling or website you're accessing is.
Just like the game of telephone, the signals are constantly being passed along from tower to tower until they reach their destination. This all happens really quickly, so you can talk on the phone or use the internet in real-time!
Overall, a British Telecom microwave network is a way for people to communicate wirelessly using radio signals sent through towers in the sky instead of underground cables.