I got a call from this number same time each day for days and days. Same thing, no one on the other end. So I dared to call it back and a person answered it was for some firefighters fund for injured people or something, didn't get the whole name but I think it sounds a bit scammish. They are hanging up until you get frustrated and call them back at which point they make their pitch, do it gets around the do not call rules. I asked to get off the list and the man sounded nice but we'll see.
These people call and I answer usually within the firs two rings and I find a dead line. I called back twice to get five minutes of Chopin and then it says "Good Bye" and hangs up. I do not know who these people are but if this is some kind of joke it is very unkind to senior citizens.