That 128Kbps on ISDN was the like the gold standard back then! I knew some sysadmins who had that installed to their homes so they could be available at any time. All paid for by the company they worked for.
We could do this since local loops to most folks were about $150-200/mo, and we already had a channelized DS3 terminated at our rack at a local datacenter for our phone banks. If you bought your own DS1 retail you'd be paying upwards of $1k/mo back then to a provider.
It was by far the best "stickiness for dollar" investment into employee benefits I've ever found back then or since.
And I accessed the heck out of that connection (until the ISP went bust, wonder why?), and was very much a Q3A LPB during that time.
Fast-forward to 2025, and I now have dual 1Gbps symmetric fiber connections (AT&T, GFiber) into my home from opposite sides of the house. (It's totally gratuitous and I'll probably cancel GFiber in a few months, but I wanted to have it wired up so I could more quickly start service in the future.)
https://en.wikipedia.org/wiki/Ricochet_(Internet_service)
Wireless 56k baud. So you could take your luggable laptop circa 1994 with you and dial in to work... given you lived in SF.
One of my internships in college was at Sun Microsystems in the org that provided this connectivity to employees. My job was to automate pushing updates to connection software and modem firmware down to clients, but I ended up doing a lot of technical support as well.
The other (often overlooked) benefit that ISDN provided was 24/7 connectivity in an age of dialup.
Oh and you could spoof your outgoing phone number for caller ID ]:D