Universal Pro Call Blocker

In this day and time we have People that Call Us That are trying to SELL A PRODUCT...when WE Do Not Want these type of Calls...so this Device does a very good job of Blocking these calls as they get Dead Air the next time they call when you have previously hit the Blacklist Button on this Device ...this works on Robo Caller Machines as well...

Didn't work with Comcast line and a two number phone.Our teen IT gave up after a couple of weekends.

This product works great. in fact I have ordered a second one for my office.

Failed after 10 weeks. Previous unit lasted for four years before failure.

It's garbage stripped down to nothing. Don't recommend at all