I was on in the early 90s via my university's 56k frame relay rig. Maybe the most exciting thing I can ever remember doing was that, because this was way before

I was on in the early 90s via my university's 56k frame relay rig. Maybe the most exciting thing I can ever remember doing was that, because this was way before dialup TCP/IP, I'd use my 2400 baud modem to dial the university's modem pool, which was attached to a DECnet terminal server. Since this was a state university, if you knew the name of any other terminal server on that DECnet network, you could attach to it and issue commands. We had a few local BBSs, but the city where the larger state university was located had many more (I couldn't dial them direct because it was long distance and $$$), but once I found the name of a terminal server in the other city, I could connect to it, and if any of the attached modems were not in use, you could send AT commands to dial out. The first time I was able to log in to one of the BBSs in the other city by dialing my local terminal server, hopping over decnet to Morgantown and then dialing out to a BBS with no long distance charges, I thought I would die of joy. Closest thing to magic I ever experienced I think, despite how low tech it sees now.