RCA - ViSYS - 4 line Multihandset Office System Accessory handset available for base models 25413RE3, 25414RE3, 25415RE3. Handset provides cord-free flexibility to move from the office and still have access to all 4 lines. 4-Line Access-handset provides access to all four lines on base system Call waiting /caller ID with 40 name and number memory-display shows name and number of incoming call even if you're on the phone Easy to Read LCD display-clearly displays clock time and day, number dialed, memory verification and call timer Call Conference capability allows you to conference the handset with an additional station within the system with one outside line, or handset with two outside lines