Reply to Voice modems (from Computers Are Bad) on Sat, 09 May 2026 14:05:51 GMT

tychotithonus@infosec.exchange — Sat, 09 May 2026 14:05:51 GMT

I'm a big fan of this project, which uses "hard" USB modems with voice features as Caller-ID-aware call filtering. It's the only way my parents could keep their landline.

GitHub - thess/callattendant: A python-based automated call attendant, call blocker, and voice messaging system running on a Raspberry Pi or equivalent. Screens callers and block robocalls and scams with a low-cost system and modem.

A python-based automated call attendant, call blocker, and voice messaging system running on a Raspberry Pi or equivalent. Screens callers and block robocalls and scams with a low-cost system and modem. - thess/callattendant

GitHub (github.com)

Passively listens on another extension in the house, so the first ring will come through, but if you have a modern cordless phone, you can often program it to suppress the first ring.

I have my own resources for the project here, including how to adopt a "default mostly deny" policy by using publicly available telecom exchange data.

GitHub - roycewilliams/callattendant-resources: grab-bag of callattendant-related materials

grab-bag of callattendant-related materials. Contribute to roycewilliams/callattendant-resources development by creating an account on GitHub.

GitHub (github.com)

Reply to Voice modems (from Computers Are Bad) on Sat, 09 May 2026 13:41:20 GMT

arcaneoverflow@techhub.social — Sat, 09 May 2026 13:41:20 GMT

@lproven I remember being told that my phone* at the time made a good voice modem. I never got a round twit!

*might have been a Nookie 2140 with data cable, or a 6310i maybe?