@sunnySkys - Your comment kind of highlighted what I thought when I was reading the article. There are so many different kinds of telecom jobs! If you don't like one, you could simply train and switch to another.
I personally would not want to have to work as a "billing specialist." I know I've been unable to pay my cell phone bill a few times, and I've gotten pretty testy with the billing people. Even though I know it's my own fault, it makes me so mad that they call my phone 15 times a day! By the time I actually decide to pick up, I'm already upset!