Hi we inherited this phone from my wifes office. It was used with a computer terminal. Anyhow,hooked it up and it will ring in but cannot dial out.(no tones when keys depressed)I opened it up and found two wires from the pad disconnected (orange and lavender) covered in electrical tape. Two other wires are disconnected ( blue and white) from the line imput (from the wall jack). Can anyone tell me where to connect all if not just some of them so we can dial out. This is a great vintage phone and we want to use it.