A call forwarding service is accessible through a common service management system using a graphical user interface (GUI) via the Internet and an interactive voice response system via the public switched telephone network. Using the GUI, the subscriber builds and edits service data, including a screening list and weekly schedule. The GUI displays a forward-to number field and multiple activation fields. The call forwarding service is activated in response to an ON indication of a first activation field, implementing call forwarding functionality to forward calls to the forward-to number; the screening list is activated in response to an ON indication of a second activation field, forwarding only calls from the listed telephone numbers to the forward-to number; and the weekly schedule is activated in response to an ON indication of a third activation field, enabling the call forwarding functionality only during the listed time periods.