Got a call from that number at 1:40 p.m. today, 7/24/12. I'm in upstate N.Y. I took my answering machine off line a long time ago, and few bother with me more than once or twice. I can tell legitimate calls by my caller ID. If I am really annoyed with them, I make sure there is no background noise near me and I just pick up and don't say anything. I hold as long as I can until they have to disconnect. Two can play that.
rec'd call today @ 10 am., I decided not to answer. I called them back several hrs. Later. I got an answering machine stating they are from a fundraising org. And if I wanted a call back or to have my number off their list. Of course I did the latter. I am in Al.