I used to work in a call center. I'm not female, but I knew a female or two who worked there. There was no dress code. There was aggressive monitoring, but there was a script and the cordial demeanor becomes automatic very quickly. The pay and job security wouldn't justify taking off for a month, though the turnover was high enough that after coming back, if they were still in business you could probably return to work right away.
True, I worked in a number of call centres a few years back.
There is a variety of cultures in these places, from having to turn up in a suit and tie and account for your time down to 10 second intervals to super laid back.
More formal places did tend to pay better and provide better equipment though. I had experiences in some where you had to twiddle with the headphone wire and hold it in the right position or you wouldn't be able to hear the customer.
The market for call centre workers back in ~2007 was highly liquid, if you got sick of one job after a few months it was no big deal to just quit on the spot and be able to walk into another one within a week or two.
