calls then hangs up

Called, no message.

phone rang as I walked into the house late evening, immediately hung up after I said, "hello"

Got the call 11-14-14 and its Venture Data Survey.

You can go to their page and be removed, www.venturedata.com/NoCallList.htm as well as https://www.donotcall.gov/

Annoying they call,but now you know.

They have called 3 times in 2 days and haven't left a message.