Stop calling I am not interested in anything you have to sell me

Have received about 20-30 calls from this number since last night - no answer when I pick up, they will not identify themselves and leave no msg. When I call back it rings and then I get a fast busy signal.

So, I have this great little ap on my smartphone called "dead to me" and by using this ap and blocking these idiots - I have experienced relief. They have about 4 #'s they call from, every time I would answer, they hung up. Anyways, use a blocking ap of some sort. I have blocked all their #'s.... I think. Good Luck!

getting called from 4178002537.When I call the number back all i get is a busy signal

I got already at least 15 callas from 417 800 2537. I never could pick up, just I got the number from the receiver. I do not want to get it more.