1) NOC technician for an ISP/telco. I take calls from residential and business customers, and figure out why their email won't work, or why they pick up their phone and hear conversations from a business 3 blocks away. Takes quite a bit of knowledge of switches, DSLAMs, PBX, HPBX, T1s, PRIs, etc, etc. Have to be good at troubleshooting and problem solving. And neffing.
2) I have a BS, but my degree has nothing to do with my line of work. There's a ton to learn in my line of work, and it takes years for anybody to get a firm grasp on all of it. Meanwhile, I get paid to learn it all and gain experience. Part of me kind of likes that it's different from what I went to school for, because on one hand I have my BS in web media, with an ever expanding portfolio. And on the other hand I have ISP/telco technician experience, which is also pretty valuable.
3) Like I said, I didn't go to school for it. I'm stuck in this area until my girlfriend finishes up her degree, so it's good enough for now. I do like it though. My boss and coworkers are great. It is a phone support job, but it's not the usual call center type stuff. It's about 10% "call center" work, and about 90% troubleshooting/networking/figuring out wtf broke.