With the AT&T DLP73510 DECT 6.0 5-Handset Cordless Phone featuring Unsurpassed Range Bluetooth Connect to Cell 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. Bluetooth Connect to Cell technology on the AT&T DLP73510 DECT 6.0 Cordless Phone lets you receive a call and/or landline calls from one home phone system. With a touch of a button enjoy the high-tech benefits your smartphone offers. Even if your smartphone is in a different room you can still access Siri or Google Now from the cordless handsets. Place a call write or read a text and perform all the other actions these services offer.