You can administer any multiappearance display telephone to have a caller information (callr-info) button. This button displays digits that were collected for the last collect digits command.
Procedure
Type change station n, where n is the extension of the telephone that you want to change. Press Enter.
On the Station screen, click Next until you see the Button Assignments area.
If all the buttons are assigned in this area, click Next until you see the Feature Button Assignments area.
In the Button Assignments area or in the Feature Button Assignments area, assign callr-info to an available button.
