Just a heads up from the inside on state legalities:
1. Mass & Mich- no check by phone fees
2. Outbound laws in Mass and Tex are most stringent
3. read the FDCPA (fair debt credit protection act) if you feel like you are being harrassed do something about it.
4. unless you are in certain states call time is from 9am to 9pm in your time zone. (outbound)
hope this is helpful. (work in an inbound call center. i won't say for whom, but its because of my debt that i am working in this place.)