DESC: Improved Super-Twist LCD Screen: improved viewing and reduced glare Ratchet-Type LCD Display: allows user to select viewing angle Both 90 Volt and 24 Volt Message Waiting Lamps Headset Jacks (2.5mm and RJ type) Features Include:Line Powered Caller ID with Call Waiting 60 Message CID Memory Extra Large 3-line LCD Panel Voice Message Indication: FSK 24 Volt and 90 Volt Speakerphone Mute with LED Electronic Hold 11 Direct and 10 Keypad Memories Flash Redial High Profile Ring Indicator Multi-Step Volume Control Data Port DTMF Dialing Desk/Wall Mountable