Inter-tel Axxess 550.4100

Features: 6 line X 16 character alphanumeric LCD with "soft" key prompting. LCD integration with Axxess/Axxent Voice Processing Unit. 8 "soft" menu driven keys. 6 special features keys. 23 programmable keys. 12 key "hot" push button dial pad. Full duplex speakerphone with volume control. Red LED functionality. Ringer/Handset volume control. User programmable ring tone. Hands free answer back on intercom. Self test function. Hearing aid compatible electric handset. Reversible base plate for wall mounting.