I've been getting calls on my cell phone for weeks from "Jeff".  I called them back last week, only to find it is a scam trying to sell you timeshares.  I asked them to take me off of their calling list.  They have not, as I got a call yesterday.  I've got my phone number registered on the do not call site, yet these folks are calling.  I will be looking to report them to do not call and any other gov agency I can.