AT&T 2385 Cordless 2.4 GHz 4 Handset System Multihandset phone system includes four handsets - Not expandable Integrated digital answering system and caller ID/call waiting display option - with up to 15 minutes recording space for incoming messages with 3 individual voicemail boxes with separate access codes Each handset has selectable speakerphone ability Caller ID/Call Waiting (requires a subscription from your local telephone company) Time/day stamp - Know day and time message was received