Who called from 4108753759

This number keeps calling and no one is there.  Call back and busy signal.

constantly calling but leaves no message on answering machine

This is a "Home Solar" company. They are annoying. I tell them to take me off their list but they keep calling. I'm going to find them and punch them in the face

calls and hangs up after I answer

This number calls but when you pick up the phone nobody answers. I call back and get busy signal.  This is constant and annoying.