For most of us, a mobile phone is a part of our lives, but I am sure your curious minds have always been struck by such questions as to how a mobile phone makes a call, and why there are different generations of mobile communications. Let’s explore the technology behind mobile communications. Be a Learn Engineering supporter or contributor : https://www.youtube.com/channel/UCqZQJ4600a9wIfMPbYc60OQ/join instagram : https://www.instagram.com/sabinzmathew/ Twitter : https://twitter.com/sabinsmathew Telegram : https://t.me/sabinmathew