DECT 6.0 TECHNOLOGY; CONNECTS A BLUETOOTH CELLULAR PHONE TO MAKE & RECEIVE CELLULAR CALLS; SWAPS BETWEEN CELLULAR & HOME LINE CALLS; EXPANDABLE TO 12 HANDSETS; INTEGRATED ANSWERING SYSTEM; CALLER ID/CALL WAITING CAPABLE; 50-NAME/NUMBER CALLER ID HISTORY; SPEAKERPHONE IN HANDSET; 3 HANDSET SYSTEM