Panasonsic KX-TS4100

Features: 4 Line corded speakerphone and backlit LCD for display dialing, Expandable up to 16 stations, 3 Way conferencing, 16 x 2 keys one touch operation, Dual language (English/Spanish), 2.5mm Headset jack with control and indicator button, Speakerphone with in-use indicator, Handset and headset receiver volume control, Speakerphone and Ringer volume control, 4 Selectable ring tones, Ringer on/off control, Auto line selection, Prime line preference, Line group selection, Last 6 numbers redial capability, Intercom, Voice paging, Call transfer, Do not disturb, Real time clock AM/PM format, Battery backup system (9V battery sold separately), Wall mountable, 2 Desktop angle choices for easier viewing, AC powered.

Compatible with KX-TS4200B and KX-TS4300B