This phone has a Caller ID with Call Waiting feature that lets you see who's calling while you're on another call.

AT&T HS8270 900MHz Cordless Speakerphone with Answering System Form Factor: Desktop, Wall Mountable Screen Type: LCD Wireless Technology: RF Form Factor: Desktop, Wall Mountable Wireless Technology: RF Headset Port: Yes Total Number of Phone Lines: 3 Number of Analog Phone Lines: 3 Frequency Band: 900 MHz Frequency Band: 900 MHz