Panasonic KX-TS4300

Features: 4 Line Corded Speakerphone, Caller ID, Answering System (60 Minutes of Record Time), Expandable up to 16 Stations, 3 Way Conferencing, 4 Line Backlit LCD for Display Dialing, 2.5mm Headset Jack, Speakerphone with In-Use Indicator, Handset/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 (9 Volt Battery Sold Separately), Wall Mountable.