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For most of us, a mobile phone is part of our lives, but surely your curious minds have always wondered 'how does your mobile phone actually work?' How does a mobile phone make a call, and why are there different generations of mobile communication.

Basically, a mobile phone communicates with cellular towers that are strategically placed to give coverage across a telephone service area, with each area divided up into cells. Each cell uses a different set of frequencies from neighbouring cells, and will typically be covered by three towers placed at different locations.

The cell towers are usually interconnected to each other, the phone network and the internet by wired connections. Due to bandwidth limitations, each cell will have a maximum number of cell phones it can handle at once.

Let's explore the technology behind mobile communications. Watch the video from Learn Engineering to learn more about how your mobile phone works.

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