Driving me absolutely batty at work! I receive 3 or 4 of these a week!  I do not have any warantee on my cars that is expiring. When you dial back the number that has called you, it's a "remove" from list voicemail that does absolutely NOTHING!!!!!!!!!!!!!!  

I just press one and let the people answer the phone. THEN I hang up. See if they get a little annoyed too!