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.
@thomasfuchs These were made from the mid '90s through the early '00s. The company, Ultratec, has been making similar stuff since earlier then that. Not quite sure what the switches are but I've enclosed a pic. I can't find a brand on them.
"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