Pros
Generous when hiring people. Will train you with no experience. If you have zero call center experience and need a job, this is where you start. Depends a lot on the campaign you work for, but my training was pretty good, the client flew in their own people to train us.
Kontras
Low pay, little interest in keeping people. In fact, I've seen a few people coming up on their annual review/raise suddenly get fired, including myself. I called in one and spoke to a manager, explaining that a family issue had come up and I couldn't make it into work the next day, the prescribed procedure when you need to call off for emergencies. First thing the next morning I got a voice mail telling me I was terminated for a no call, no show. My hours so far that week would be in my last direct deposit payment, my 25+ hours of PTO was forfeit, and not to show up on the premises again or I would be removed by security. No one would take my calls. This happened two weeks before my review. No one seems to be interested in keeping people, because it's just assumed you will do your six months, and then go to a different call center now that you have experience on the phone, so that's what almost everyone does.