AT&T CRL81212 DECT 6.0 Phone with Caller ID/Call Waiting, 2 Cordless Handsets, Black/Silver DECT 6.0 digital technology Extra-large LCD display Extra-large buttons with backlit keys make the keypad easy to use Visual ringing indicator and expandable to 12 handsets 50 name and number phone book directory . Please refer the User Manual before use.