Method and system for setting up connections between a plurality of telephone devices (8, 9) of a switched telephone network (1), for establishing a conference call, comprising connecting a web client terminal (18) to a web server (15, 24) of the internet (2), on request by the terminal (18) running a conference application (26) on the web server (15, 24) to serve the client terminal (18) with a web page to return a plurality of telephone numbers corresponding to respective ones of the plurality of telephone devices (8, 9), in response to receipt of the plurality of telephone numbers by the web server (15, 24) uploading the plurality of telephone numbers by the web server (15, 24) to a service control point (4) of the switched telephone network (1) thereby initiating a conference call script (10) of a service management system (6) supporting the service control point (4) for setting up said telephone connections.