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If you have a TTY/TTD device and want to give it a try, I have one set on auto-answer mode at 484.996.1337. Feel free to leave a message!

Here is a photo of me connecting to it via a baudot-compatible modem.

My stack of blank M-Disc DVD's is getting thin 😕 and they don't make them anymore. The Cloud conquers all it seems.

I tried Netbsd on the pi back in the 7.x days and it wasn’t really working. But they have come a long way now and 9.2 works great so far. Way better fit on the $5 Pi Zero then the heavy official Linux distro.


Helped a family member set up a OOma Telo voip device and noticed it talked about "DATA and FAX" mode. You can select ulaw and alaw codac's with prefix *98 or *99

Hmm.. Yep! it works for dialup modem. Was able to dial in to SDF at 1200baud and it was rock stable!

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The ISS International Space Station is doing SSTV Slow Scan TV. Here is my setup.

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With everything else going up I hope they don’t raise the telephone rent 😥

The joys of systemD 🤔

"Qualsys has found an ugly Linux systemd security hole that can enable any unprivileged user to crash a Linux system. The patch is available, and you should deploy it as soon as possible"


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sdf has expanded its dialup service. these are direct dialup lines and do not require ppp/slip to use. they are also freely available for everyone.


please dialup today!

OK DTMF is working. I had to set it to inband audio since rfc2833 doesn't seem to be working with callcentric and my setup. The PBX seems to be talking to the voice system and everything seems to work OK.

Reading through the manual I see a nice feature that will really make my life better.

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Oh ya I forgot. Inbound DTMF doesn't seem to work with my SIP service. Going to need to figure that out before people can interact with my voicemail robot.🤔

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Mastodon @ SDF

"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko