Telephone Call Filter — Keep out Telemarketers!

Tired of picking up the phone you’re so sick of telemarketers, and other businesses hassling you for money. Now anyone who wants to call you will have to know the code. It’s like having a gatekeeper for your telephone line, and if the caller doesn’t have the right password, then your gatekeeper keeps them out. Only the people who have your four-digit pass code will be able to ring your phone line once you put this on the line.