I worked in customer service over the phone, I supported a piece of software, I have to say it's not nice being on the other end when people decide to take it out on you... I didn't make the software I'm just here to help, but hey there was still people who were really thankful when you helped them too.

The only people I ever call is my internet provider, who I do find rather unhelpful, where I worked in a call centre we did a lot to make sure we solved problems quickly, not put people on hold etc,(I actually felt bad putting people on hold lol) but when I call my ISP they just stick me on hold and then give me instructions that sound like they're being read from a screen, I'd really question the training some of them get.