Academic Papers - Dual-tone multi-frequency signaling

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Bids
8
Avg Bid (USD)
$234
Project Budget (USD)
$30 - $250

Project Description:
Hi Freelancers. I'm looking for a paper on Dual-tone multi-frequency signaling.

I'm looking for definitive resources on the above with a much more comprehensive look then you would get from a Wikipedia page. You can discuss technology, evolution, history, current state, applications, etc. I don't like to cite word cound as it should be as long to create a comprehensive product but 4000-6000 should be appropriate.

Please respond with outline, past work, and credentials.

Thanks!

Skills required:
Academic Writing, Research, Technical Writing
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