VTech i5881 5.8 GHz DSS Expandable Cordless Speakerphone with Answering System 5.8 GHz digital spread spectrum operation Digital answering system with 3 mailboxes Expandable to 6 handsets, 1 included; dual keypads Speakerphone in handset and base; remote charger stand Supports caller ID with call waiting, 50 name-and-number memory