AT&T E2555 2.4 GHz DSS Expandable Cordless Phone with Answering System 2.4 GHz frequency-hopping digital spread spectrum signal Expandable to 8 handsets, 1 included Digital answering machine, 25 minutes of recording time Caller ID/call waiting, 50-call history; 50-number phone directory Base and handset speakerphones, dual keypads