121100TP227S SL Line Pwr. CID Tel. lash (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 Predial Directory Button (Save up to 99 Names & Numbers) Five OneTouch/15 TwoTouch 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 71011 Button Contrast Button Three Languages English/French/Spanish) Programmable Area Code Programmable LDS Code Programmable PBX Access Code Programmable VIP Alert Clock Call Timer