A call forwarding service forwards calls placed to a subscriber's number to a forward-to number. Enabling an interface with the call forwarding service includes transmitting display data from a call forwarding service server through a packet switched data network to the subscriber's graphical user interface. At least a portion of the display data is displayed on a first screen of the graphical user interface, which includes a forward-to number field and at least one of multiple activation fields. The activation fields include a first activation indicator corresponding to the call forwarding service, a second activation indicator corresponding to the screening list and a third activation indicator corresponding to the schedule. Selection data is entered by the subscriber in response to the first screen, the selection data indicating one of an ON condition and an OFF condition corresponding to the at least one of the activation fields.