> It's funny that we used to all blame WinModem vendors for making WinModems instead of blaming open source for not being able to write DSP code. From what I r

> It's funny that we used to all blame WinModem vendors for making WinModems instead of blaming open source for not being able to write DSP code. From what I recall, the main issue was not with writing DSP code; the main issue was (and usually still is) the lack of documentation on the hardware. Knowing how to write DSP code does not help if you don't know how to run it. With a normal hardware modem, all you needed to know was how to talk with the UART (and these not only were publicly documented, but also were mostly backwards compatible with the original PC UART), and the Hayes command set variant used by the modem (which was also usually publicly documented, and also backwards compatible with ancient modems).