How does a phone know when another phone is calling them? How do they not get interrupted by other phone signals?

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Sorry if the question doesn’t make any sense, I’ll try my best to restate it if it’s unclear.

In: Technology

3 Answers

Anonymous 0 Comments

Your phone is only in contact with the cell tower, and its always in contact with a cell tower.

When you’re not using it there are just a few packets that go back and forth, but when you get a call your phone starts sending and receiving packets more regularly. When you get a second call the cell tower sends some packets that say “yo, you got another call coming in!”. The whole time the phone is just talking to the single cell tower, its not getting a second set of signals for the second call.

This is different from walkie talkies which broadcast and receive from anything talking on their frequency. Since it is looking at radio signals rather than packets transmitted via the radio it gets noised up if two walkie talkies in range start transmitting different messages. Your phone is dealing with packets and it does get all the packets that get sent through the air but it throws away any that aren’t addressed to it so you end up with a much clearer call.

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