A web server implements a call service, including call service data corresponding to a directory number of a user. The web server includes a first interface for communicating with a call processor that processes telephone calls in a telecommunications network. The processor communicates with a database that includes the call service data. The web server further includes a second interface for communicating with the user's computer via a packet switching network, the user computer including a display for displaying activation fields, which include a first activation indicator corresponding to the call service and a second activation indicator corresponding to a first feature of the call service. Each of the activation indicators enables selection of one of an ON and an OFF condition.