| 摘要 |
In a mobile telephone system (100), the plurality of users (101) are able to connect to a plurality (in this example, three) of different mobile networks (102) each operated by a different network operator (103) an thence to a plurality of service providers (105) or secondary service providers (106). The service provider's (105) are each connected to the network operator's (103) via one or more aggregator's (104). In the present invention a message distribution management system (110) is positioned between the network operators (103) and the aggregators (104). The message distribution management system (110) is operable to combine, the message source and destination identifiers as a key used as a lookup device to apply one or more filters to particular messages travelling between the aggregators (104) and the network operators (103). If any messages do not comply with the applied filter criteria, they are halted. |
