Will not work without an NEC SL1100 phone system controller. Will not work on a plain phone line. This is a digital phone, not IP or VoIP, despite IP being in the model name. It wires directly to the SL1100 phone system controller.

Black, aka charcoal, IP4WW-24TXH-Tel-(BK) SL1100 phone by NEC. New cords and blank label. This phone will work in place of a IP4WW-12TXH without reprogramming. The bottom 2 rows will not work unless you program procedure 15-7.

Please note: The clip that holds the receiver when used as a wall phone is missing.

Tested on an NEC SL1100 phone system prior to shipment.

Cleaned. 90 day warranty.