How do wireless signals get to its destination?

Question

There are billions of mobile phones all communicating with each other sending wireless signals across the globe. How does each signal know where to go exactly, and how are they not intercepted by other signals?

In: 9

Answer 1

Your mobile phone has an identifier that’s used to track which tower it’s connected to. So when someone calls you, your cell network says “OK, 555-1234 is connected to tower 123456789, so I’ll tell that tower to send a message to 555-1234 telling it to ring.”