Abstract: A mobile telephone handset (1) has its circuitry (11) to be driven by a rechargeable battery (17). The handset can to perform a data processing operation such as a download or a memory defragmentation, which requires battery power over a considerable period of time and a battery sensor (20) is coupled to the circuitry for indicating whether the battery has sufficient capability to complete the data operation. The circuitry (11) is configured to cease the data processing operation in the event that the battery is indicated to have insufficient capability to complete the operation. A battery charging sensor (19) indicates when an external battery charger is connected and the download or defragmention process is preferably carried out using the power of the charger rather than the battery.

Abstract: 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).

Abstract: A mobile telephone handset (1) has its circuitry (11) to be driven by a rechargeable battery (17). The handset can to perform a data processing operation such as a download or a memory defragmentation, which requires battery power over a considerable period of time and a battery sensor (20) is coupled to the circuitry for indicating whether the battery has sufficient capability to complete the data operation. The circuitry (11) is configured to cease the data processing operation in the event that the battery is indicated to have insufficient capability to complete the operation. A battery charging sensor (19) indicates when an external battery charger is connected and the download or defragmention process is preferably carried out using the power of the charger rather than the battery.

Abstract: 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).