I can't get cable or DSL where I am (SUCKS) and have 2 dual channel ISDN modems. One thing I don't think you are looking at is the ISDN lines with the phone company. I pay aroung $35 per month to the phone company (and it cost $200 each to have them installed) PLUS having to pay the ISP's $39.95 for each. Added together it's about $75 per dual channel ISDN line, and I have two so that's $150 per month (OUCH). Wish I could get cable/DSL. As for speed, I clocked it when I first got it and it was around 4 times faster than a 56k dialup, dialup is analog and ISDN is digital. I have had them for 1 1/2 years and would not go back to dialup. Just my
