TrueCall is a device which sits between your phone line and phone. It acts as a virtual secretary to protect you from calls that you do not wish to receive. It works by you telling it what numbers are good and when it answers the phone it immediately allows those calls through. However, if you are unknown to the system then the robot will take over the call.
When an untrusted number calls an automated message is played to the caller. It asks the person who called who they are. When it gets this information it then calls your phone in which you answer. You then have the option to take the call or tell the TrueCall to reject it.
The TrueCall device is available in the UK for £99.99.
Via: Engadget
This is a great idea. I’m on the National Do Not Call list, but I still get way to mant annoying calls. I know there are products like this, available here in the U.S., as well.