Up to 4 Lines Expands to 16 Stations 3 Way Conference Speakerphone Flash Hold Mute Transfer Selectable Ring Tones (7) Memory Dial Toll Restriction Call Privacy On/Off Intercom Paging Do Not Disturb Redial List Automatic Line Selection Backlit LCD Type II CID Call Timer Directory (40 number) Line Reserve Static memory Volume Control Headset (2.5mm) 5 Direct Memories-Black