at&T EL52303 3-Handset Cordless Answering System with Caller ID/Call Waiting Full duplex handset speakerphone Extra large display Digital answering system DECT 6.0 technology Caller ID call waiting stores 50 calls Backlit keypad and display Expandable up to 5 handsets (uses EL50003) 50 name and number phonebook directory 9 number speed dial Intercom between handsets Conference between and outside line and up to 4 cordless handsets Table and wall mountable Up to 14 minutes digital recording time Message retrival from handset Message time and date stamp Remote access ECO mode Quiet mode Mute Last 10 number redial Any key answer