This brings back memories of my ISP days. I haven't worked with T1s in almost 25 years. Point-to-point T1's, frame relay, 56K dedicated lines, even ISDN. That w

This brings back memories of my ISP days. I haven't worked with T1s in almost 25 years. Point-to-point T1's, frame relay, 56K dedicated lines, even ISDN. That was all fun stuff.