Norstar T7208 Telephone Charcoal Supports up to 6 lines and 8 programmable memory buttons with LCD indicator. Tilt-display with integrated visual ring/message waiting indicator. 1 line, 16-character LCD window. Large dial pad, Handsfree operation, Built-in headset jack. A proprietary phone that is not compatible for home use and will only operate with the Nortel PBX office system