All system features are available on all types of telephones.
The feature buttons on ITE sets are labeled with their functions, but many features not assigned to a specific button are available by following these steps. To use any of these features on an STE telephone, simply follow the instructions given below. Features that are accessed by flashing the switchhook must be designated on a feature button to be used on an ITE telephone set. Do Not Disturb Prevents the telephone from ringing. If your directory number is forwarded to Voice Mail or another extension all calls will be automatically forwarded.