Called at 9:38 AM while I was at work.  Doubt they call again since I don't have my answering machine on and all they get is a ringing phone.  Nor do I ever call back unless it's someone I know - WITH THEIR NAME.  I don't answer when at home either and have the ringer turned down very low so it doesn't bother me.  I refuse to let these f***tards interrupt my dinner or any of my time with their crap.