In the field next to the feature that you want to change, type a new FAC that conforms to your dial plan over the existing FAC.
You might have to scroll through several pages of the Feature Access Code (FAC) screen to find the telephone feature that you want.
Some features require more than one FAC. type a FAC in each required field. For example, type a separate FAC in the Call Forwarding Activation Busy/DA field, the All field, and the Deactivation field.
To remove a FAC, delete the existing FAC and leave the field blank.
Press Enter to save your changes.
Ensure that you notify all users about the changed FACs.
