Inter-Tel 550.4400 Features:

Speakerphone (Full Duplex w/ add’l hardware), 12 Programmable Buttons. 2-line LCD display, Red and Green LED’s (Processor must be version 4.0 or higher for both Red and Green LED’s to work), Reversible Base for Wall Mounting, Compatible with Inter-tel Axxess/ Axxent phone system. Includes new line cord, and new handset cord.