Cortelco 1220 122000TP227S 2-Line CID Business Telephone Category_Cameras Frequency Response: 80-20KHz

Frequency Response: 80-20KHz

Optimum sealed: 2

Integrated Rechargeable Lithium Ion Batteries

RMS: 17 watts x 4 channels

Handles 100 Watts Per Channel With Speaker Systems That Have A Minimum Impedance Of 8 Ohms

Cortelco 1220 122000TP227S 2-Line CID Business Telephone Category_Cameras Frequency Response: 80-20KHzFlash (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 Five Two Touch Speed Dial Programmable Flash Time (100 120 300 600 mSec) Handset Receive Volume Control (8 Levels)