Dial Up Solutions
Stephen Satchell
list at satchell.net
Mon Oct 19 00:21:46 UTC 2015
On 10/18/2015 03:38 PM, Aaron Hopkins wrote:
> It appears to be limited to 14.4k due to patent issues and handles faxes
> only, but its existence suggests writing a software-only data modem should
> be possible.
That's exactly what WinModems were, back in the day. The board was
nothing more than a DAA, a codec, and an ASIC to transmit and receive
the raw data. For V.34, the software required about 60 MHz of clock;
for V.32 bis the load was closer to 24 MHz.
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