Got a call - found out it was a law firm:  Brachfield & Associates, PC claiming to be collecting a debt.  They have called 12 times in the last 10 days.  All but one call:  "This is an important for 'Your Name Here'. This is not a telemarketing call.  Please have 'Your Name Here' to call us at 713-579-7066."
They never give information about who they are, why they are calling, who they are representing.  
One call was a guy named Mike Carlson at ext 6088.  I called back and he has no voice mail, so the extension just rang forever.
They also use 866-837-4406.  Sounds phishy to me.

A recorded message in Spanish cut in and out.  I do not speak Spanish.