A 'Joseph from FFT & Associates' has also been trying to reach me. On both occasions (01/24/11 and 01/25/11), this Joseph has left me a voice message with requests to call him back at 877-683-5490.
I've heard in my circle that there is a phone number that asks you to call back. If you call it back, it navigates you by pressing numbers and buttons to reach someone. It turns out, the minutes one spends navigating through the number, the phone company charges an outstanding amount on your bill they cannot remove from your account and you must pay it.
Simple rule of thumb- don't answer or call back numbers you do not recognize.
https://www.donotcall.gov/ Is the National Do Not Call Registry; it prevents telemarketers and scammers from calling the phones you list on this government website.