Just got called myself. I almost never answer the phone. I screen them through the answer machine or flash 'em if I don't want to hear it. Otherwise I shut the machine off and go check it on Cox's digital phone call history feature, when or shortly after the phone rings. If you don't have that kind of setup, oh well. Don't care. Just putting it out there.
You could be getting alot more calls without the registry, so why get in a twist over the little stuff. Bottom line is if you're going to sign up for something, maybe you should read the information on how it works.
I did most of the leg work for ya'. Go to this page, line 28. http://www.ftc.gov/bcp/edu/pubs/consumer/alerts/alt107.shtm Welcome to reality.