In '86 I was logging onto Bulletin Boards with my Atari 800 & (if my memory serves me correctly) a 1200 (!) baud modem. One BBS I frequented was in Chicago which I accessed toll free from Canada.
One day, the owner set up a conference call with a bunch of users from all over North America & we chatted for several hours. About a week later, I got a phone call from someone claiming to be from AT&T demanding to know who set the call up: I told her to pound sand.
As it turned out, the guy who ran the BBS was a major phone phreak who was making free long distance calls all over the world.
Not sure if he was caught but the BBS disappeared a few months later.