It took long enough but we both now have a blog and a write-up for the AT&T Sceptre work (which is on the blog, back-dated to when we released the server software)!

Come check it out, we even have RSS!

https://dialup.world/blog/att-sceptre-revival.html

It's #modemmonday again so here is another interesting #modem, the US Robotics I-Modem. Sure, it looks like your normal Courier but this modem was designed for those with an ISDN connection who could get cray 128Kbps speeds, though it could also work with analog data at speeds up to 56K/V90.

Be sure to share your modems for #modemmonday!

Poking around in the USR NETServer tonight over telnet. The commands seem understandable enough and it shouldn't take much to get a minimal config for dial-in users based on what I'm reading from the manual.

I plan on resetting it to create a fresh configuration, but first I need to make sure I have an appropriate console cable!

It's #modemmonday again! Here are three Ultratec Intele-Modems. These modems will operate normally at 300 baud (Bell 103), but they also have the option to do 45.45bps baudot to be compatible with TTY/TDD devices for the deaf! I believe these will also work for RTTY communications amongst other things.

I also have several portable TDD devices and thought it would be a lot of fun to couple these with remote modems so I could browse BBSes or play zork from any public payphone.

Homemade hydra cable works just fine with the Cisco IAD2432! I ordered an RJ-21 cable with 3ft of unterminated wires (25 pairs total) and stripped down the outer jacket before crimping on RJ-11 connectors to each pair. The IAD supports 24 analog lines so I'll almost utilize the whole cable.

I figured that using a 66 block or patch panels would be more trouble than they're worth when the longest run I'll be doing is a few feet long.

I have ordered three replacement fans that I hope to swap out to make this quieter. Ultimately I'll rack it, likely with some universal 1U ears I've found that sort of fit. If anyone has a lead on some older Cisco ears let me know, I'd love some original ones that properly fit.

Work on the Cisco IAD 2432 is coming along well. I was able to get the SIP peers defined in Asterisk and then do basic configuration on the IAD to get each analog port mapped and registered!

Tomorrow I will test out my homemade hydra cable and see if calls are flowing properly!

For #modemmonday let me show you a few Gandalf LDS 120 modems. These short-haul modems were originally designed to connect remote terminals to computers up to a few miles away over four-conductor wire. This was popular in office and university campuses back when computers were gigantic and kept in their own rooms. Essentially you can use two of these and some wire as a really long serial cable!

Gandalf operated from 1971 until 1997.