See Function Key Programming on page 25. 2. Pressing Expl? to switch to longhand programming mode. 3. Press Next until the required feature required is shown, then press Selct . 4. If the feature requires some data to be entered, [ is shown at the bottom of the display. Enter the data using the normal telephone keypad. 5. The upper part of the display reverts to showing the features currently assigned to each and key. 6. Use the or keys to move between the pages of display keys. 7. Select the di