| 摘要 |
A communications system comprises a beacon (10) storing a portion of available data (20) and having access to all of the available data over a first network (60). The beacon (10) is arranged to communicate with a client terminal (30) over a second network (35, 40) to supply data from said stored portion (20) of available data. The client terminal (30) has access to all of the available data (70) over a third network (80, 90). Upon a request by the client terminal (30) for data of the available data not within the stored portion (20), a network is selected from the first network (30) and the third network (80, 90) in dependence on one or more predetermined criteria, the requested data being accessed over the selected network. |
