Seriously, the scammers have more ways of scamming than we can keep up with.
Legal?
No, but there ain't a whole lot you can do about it.
Just keep on feeding it to the FCC.
Not that it'll accomplish anything, but if their "in" box gets too full of this type crap, they might..."might", do something.
And the "Do Not Call" list is simply useless...so there ya go.
Give her my number, nobody calls me, I'm lonely and I'd like someone to talk to.........