The Binatone Shield 6015 Call Blocker is a sleek and stylish home phone that offers a 15 minute digital answer machine. The Shield 6015 has a 100 name and number phonebook memory, view up to 20 last number redials with the Caller Display storing information for the last 30 calls. Enjoy your conversations with the long 10 hours talk time and 100 hours on standby with the convenient handset speakerphone for you to take your conversations away from your sofa. The Shield 6015 comes with 10 ringer melodies and LCD backlit display. The Call Blocker function will block all unwanted calls including Withheld, International and other Specific Numbers. The call blocker feature allows you to save up to 20 numbers on your Black List and a further 20 on your White List to help distinguish between your unwanted and wanted calls. You are able to block all calls and only allow your White List calls to come through, making sure you only receive the calls that matter.