Att Atcrl32102 Dect 6.0 Big Button Cordless Phone System With Digital Answering System & Caller Id DECT 6.0 technology; High-contrast black text on extra-large white display; Big buttons; Talking digits; Visual ringer; Audio Assist(R) temporarily increases volume to make speech easier to understand; Caller ID announce; Push-to-talk; 50-name/number directory; Visual ringer on base & handset; Expandable up to 12 handsets; Handset speakerphone; Up to 14 min record time; Message retrieval from handset; Backlit message counter; Message time & date stamp; Single-handset system;