> That's true. I felt the original posting implied that Hayes invented
>> something entirely new; which wasn't quite true.
> As far as I know, his was the first modem to use in-band signalling.
> It was really rather clever to build a UART into the modem and use it
> to let the computer control the modem over the same channel as it used
> to communicate with the remote system.
Nope, that honor goes to Bizcomp, who predated Hayes by two years.