[TUHS] Anyone have a modem wired up?

[John Floren]

On Wednesday, October 27th, 2021 at 11:17 AM, Chris Hanson <cmhanson at eschatologist.net> wrote:

> Obihai makes some decent, cheap-on-eBay, unlockable/hackable analog VoIP boxes that work just fine with not-super-fast modems. You won’t get 56K or even 33.6, but 9600-14.4K should be fine and a Telebit Trailblazer probably would be too if you want to use UUCP over dialup…
>
> — Chris

I've got a Grandstream HT801 through my ISP (Sonic.net) which works fine for voice, and it previously did ok with the modem, but now when I try, I start to get garbage soon after the connection establishes (see http://jfloren.net/noise.jpg for an example). It happens regardless of who I connect to, and seemingly without regard for the connection speed--although at 9600, the garbage fills up the screen quite rapidly compared to a rather sedate trickle at 4800.

My modem-fu is rather weak, so if anyone recognizes what's going on, please let me know. I worry that it's just a noisy phone connection, but I was under the impression that modems had some sort of error-correction built in (this is a SupraFaxModem 288).

john