The 347 area code is NYC outside Manhattan.  To my New Yorker ears, it sounds like a heavy Brooklyn accent (it's a female answering).  Maybe that will help locate these idiots.  In the meantime, I managed to get in "I don't have any carpets" before she hung up.  And yeah, between the loopholes the politicians put in and the robocallers who don't give a rat's you--know-what about laws, the Do Not Call registry is a big, fat joke -- only no one's laughing.  So every time you get a robocall, send the number to your congressional reps and your senators.  Maybe if we annoy THEM enough they'll do something effective for once.