Features: Expands up to 10 handsets total Caller ID, call waiting caller ID 100# Programmable phonebook/caller ID history locations w/ alphabetical search Large 3-line backlit LCD on handset and base Speakerphone on handset and base Keypads on handset and base Lighted handset keypad Hold/redial/pause/flash Handset to base intercom New message waiting indicator Easy navigation Personalized ringers 5 Way conferencing 10# Speed dial Intercom Trilingual menu Backlit keypad Line 1 and 2 displays Call transfer DirectLink 2 way radio communication Room/baby monitoring 2.5mm Headset jack Earpiece and ringer volume control Any key answer Privacy mode Find lost handset/paging key Wall mountable Box dimensions: 8.25 inch L x 7.5 inch W x 4.25 inch H Includes belt clip Silver with gray trim and orange LCD's ACCESSORY HANDSETS: TCX905 and TWX977 Product Support Information: Customer Service 1-800-297-1023 Monday-Friday 7:00A.M. to 7:00P.M. C.S.T Sat-Sun-Holidays 9:00A.M. to 5:00P.M. C.S.T