Robocalls are more than just an inconvenience.  They can also cost you money and even your identity.  Here is a link to my latest column for the Saturday Evening Post in which I tell you what you can do to stop robocalls.
http://www.saturdayeveningpost.com/2017/04/26/health-and-family/business-and-technology/con-watch-protect-robocalls.html