Subj : Re: USR USB Modem woes
To : Gamgee
From : Moondog
Date : Mon Jan 30 2023 02:51 pm
Re: Re: USR USB Modem woes
By: Gamgee to Ted Long on Sun Jan 29 2023 08:56 am
> -=> Ted Long wrote to All <=-
>
> TL> I've been toying about with a retro BBS, targeted at hams and
> TL> electronics hobbyists. Wanted to add a true dialup node, so I
> TL> picked up a 56k USR 525 voice/data/fax modem. Has both DB-25 and
> TL> USB ports. Claimed to work with Win 95/98/2000. Unfortunately, my
> TL> Debian Linux box refuses to recognize it. I've tried mgetty,
> TL> vgetty, and agetty, and the modem simply won't recognize the ATZ
> TL> or ATDT7195551212 strings, or respond with an error code. It's
> TL> got a new USB cable and a DB25-to-DB9, so its not the
> TL> cable....plugged it into my old ThinkPad, and it works great. I
> TL> should mention that the Linux box is a Raspberry Pi 4B, 8 GB RAM,
> TL> 500GB SSD.
>
> What OS is running on the Thinkpad?
>
> Some of those type of modems are what used to be called "Winmodems", and
> only work with Windows.
>
>
>
> ... Daddy, what does "now formatting drive C:" mean?
Winmodems used a digital sound processor to generate tones, and relied on
software to work.
Back in the dialup days I set up a dial on demand server/ router with a
modem that had a DB25 port. This was being done with a lightweight linux
distro called Coyote linux, but the most important thing was selecting the por
t being used. It was like that in the DOS days. An external modem is just
that - an external device the PC doesn't have to detect or see. It is
assumed it is there to accept send and receive requests. If you're
connecting via USB I imagine you should see a connection if you list usb
devices.
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