5.8 GHz / Caller ID / 50# phone book / 50# Caller ID history / For use with AT&T TL71108 - 71208 - 71308 - 72108 - 72208 - 72308 - 78108 - 78208 - 78308 Keep in touch with friends and family with this AT&T Accessory Handset with Caller ID. A large, easy-to-read blue LCD screen on the handset displays the Caller-ID and Call-Waiting feature. With a 50-number Caller ID history and 50 Phone Book locations, you can keep track of your favorite friends and family. You can also dial the last 5 numbers you've called. With your choice of English, Spanish, or French prompts, it's easy to set up this phone. # 5.8 GHz Digital spread spectrum frequency hopping technology provides superior security, clarity and range # 50-number Phone Book, 50-number Caller ID history # Call Waiting/Caller ID (Service required from your local telephone company) # Large blue-lighted display # Blue lighted keypad on handset # New Call/Missed Call indicators # Trilingual voice prompts - choose between English, Spanish or French # Last 5 number redial # Handset volume control # Speakerphone allows hands-free conversations # Intercom between handsets # Conference Between an Outside Line and up to 2 Handsets # Display dial