Elton Leung wrote:
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Rob,



very interesting.

However, I don't know if it can go out to 33.6K/s. I believe this circuit can act as a low speed modem but not a high speed one.



We have an expression in English
"You can't make a silk-purse from a sow's ear" - if you want teleco approved 33k plus modem, you have to buy it in.

Steve