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Thread: A Question

  1. #1
    Network|Geek kidzer's Avatar
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    A Question

    Right, i've a question that has been bugging me for about two weeks now.

    I know that telephone calls are sampled 8,000 times per second, each sample being one bit - therefore POTS telephone calls are 64Kbps, correct?

    I also know that POTS uses the 300-3400Hz frequency range (or thereabouts, thats the figure I was given by my lecturer, other sources say its 0-4000Hz).

    My question is - how does a bandwidth of (around) 3.1/4KHz translate into being able to carry 64Kbps of Data?

    Cheers, David

    Edit: confused myself a bit with Hz/Mhz/Khz justnow, i'll check 'em later and correct any mistakes!
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    Fried Chip Extremist alsenior's Avatar
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    between your exchange and the phone it is all analogue and after that point it is routed over digital networks i think.
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