A user of a combined mobile telephone and IPDC receiver (10) accesses a WAP portal (16) through the Internet (82) and/or a mobile telephone network (81). The WAP portal (16) provides a service menu, comprising a number of links to service menus further down in the hierarchy or to IPDC services. The WAP portal (16) is provided with information relating to IPDC services by an IPDC operator (80). This information includes at least the name of the service, the IP address and the port number relating to each service. The information may additionally include a Network Information Table, IP/MAC Notification Table and Program Mapping Table, although this information may be provided to the mobile terminal instead by broadcast from a DVB transmitter (13). When a user of the mobile terminal (10) selects an item on the service menu presented by the WAP portal (16) which relate to IPDC service, the WAP portal pushes information relating to that service to the mobile terminal (10), allowing the mobile terminal to open an appropriate IP channel and consequently receive and consume the IPDC service.