Called my cell phone twice around 9:00 CDT this morning.  Did not answer two of the times, no VM left..
Called me again a couple mins ago, this time I answered.  No one there, hung up after 3 seconds.
Called them back from my MagicJack app on my tablet (NOT the number they actually called, which is my cell).  The guy answered -- VERY courteously and professionally -- as an insurance company (didn't catch the name, although he was very obviously an American).
When I stated they had called me 3 times and wanted to know what they wanted, He said they were calling to "follow up on medicare insurance request for Mr. Pitello [spelling?]".. I told them there's no such person.