Outside dial tone preference

If you make mostly outside calls, you may find this setting helpful. It tells your station to connect automatically to an available outside line; i.e., you don’t have to dial 9 (or 8 or 71–76) before the phone number. Therefore, when you lift the handset or (except on a 12-Key Feature Phone) press SPEAKER, you will immediately receive an outside dial tone from the highest-numbered line available to you. (This aspect — i.e., that it’s always the highest line available to you — can’t be changed.)