Calls and no one says anything-it hangs up. When you call it back, they say they will call you back within the next 24 hours or press "1" to opt out of calls/be added to the do not call list. I have pressed the button several times because they keep calling me randomly and I have yet to NOT receive calls from them.
This number call us 4 times yesterday and that was after we got home. We didn't answer & they don't leave a message. We can block them on our cell, but not on our Verizon home connect phone.