آیا میدانید تلفن همراه شما چگونه کار میکند؟

آیا میدانید تلفن همراه شما چگونه کار میکند؟
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.