Flash 100/300/600 mSec Hold with Indicator Redial Pause Mute with Indicator Desk/Wall Mountable 2.5 mm Headset Jack Speakerphone Caller ID/Call Waiting Memory for 50 Calls Wide Angel, Adjustable LCD Voice Mail Indication FSK/Stutter/90V/24V On Hook Pre dial Directory Button Save up to 99 Names Numbers Five One Touch/15 Two Touch Speed Dial Programmable Flash Time 100/120/300/600 mSec Handset Receive Volume Control 8 Levels Programmable Ring Cadence 5 Positions Programmable Ring Volume 4 Levels/Off Data Port Headset Button, Release Button 7 10 11 Button Contrast Button Three Languages English/French/Spanish Programmable Area Code Programmable LDS Code Programmable PBX Access Code Programmable VIP Alert Clock Call Timer 7.5V DC Adaptor