With the AT&T BL102 DECT 6.0 Expandable Cordless Phone featuring Unsurpassed Range and Smart Call Blocker you won t have to worry about unwanted calls waking you up in the middle of the night or tying up the line. Robocalls are automatically blocked from ever ringing through-even the first time. You can also permanently blacklist any number you want with one touch. A digital answering system that can record up to 22 minutes of incoming messages outgoing announcements and memos to help you stay organized. This reliable cordless system brings you long range audio assist and extra features like caller ID announce and visual ringer. Plus the large buttons and extra-large screen make it easy to see and dial calls. Easily add accessory handsets-up to 5 total-with just one phone jack.