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What are the fundamentals of DTMF functioning?

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mengghee

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DTMF Questions

Hi,

I am making a small project identifying signal from my phone to my pc via modem. I am told that this can be achieved using DTMF where certain tone generates specific frequency that enables the buttons to be identified. can anybody tell me the fundamentals of workings of such DTMF ? perhaps book recomendation and ebooks ? thank you.

regards,
mengghee
 

Re: DTMF Questions

I am actually looking for more specific details of designing ... perhaps methods of designing the system. Thanks
 

DTMF Questions

you can have single chip decoder Mitel 8870
**broken link removed**

regards

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