TELECOM Digest OnLine - Sorted: Re: History of Hayes Modem

Re: History of Hayes Modem

Jeff Sutter (
27 Jan 2006 00:47:25 -0800

John Levine wrote:

>> 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.

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