How do you block calls from a telemarketer that uses multiple area codes and phone lines? I have looked many up on the internet and get the usual "for a fee" the name and/or company calling. Calling the number to have them stop calling does not work since they have "invalid" phone numbers. They listen long enough for the answering machine to begin then hangup. However, this (to my system) an unanswered call and a message is waiting. I'm not sure that a land line is worth the irritation.
