Summary: I had an earlier version of this from 3 years ago that performed flawlessly but only blocked 30 numbers. This blocks 250. The features and sound quality are excellent. No complaints at all. Great connections from the handsets to the base right out of the box.
Summary: To be special, it needs an amplified HEADSET Jack on the base unit. Why? Every day we need a hands free situation... especially, when working on the computer or taking notes. It does have headset jacks on the Handsets, however, they do not amplify! Poor at best.