Two-Line Caller ID with Call Waiting 99 CID Memory Wide Angle LCD 3-Line Liquid Crystal Display Wide Angle (Super Twist) Tri-Lingual: English, Spanish and French Displays Caller Name, Phone Number and Time/Date Real Time Clock and Conversation Duration Timer (CID Service Not Required) Displays Active Line Voice Mail Indication FSK 90 Volt Stutter 24 Volt Mute Hold Hold (PBX) On Hook Predial Directory Name Match 10 Direct Memories Flash Redial - Last 10 Numbers Conference Data Port Speakerphone 2.5 mm / RJ Type Headset Jack Desk / Wall Mountable 9V DC Adaptor