| 摘要 |
<p>A communications system includes a server and a direct mode network having nodes defined by a plurality of client mobile devices, wherein each client mobile device is capable of forming a connection to one or more of the other client mobile devices of the direct mode network independently of an infrastructure to provide a connection between the nodes of the direct mode network. Some or all of the client mobile devices are also able to form a connection to the server via the infrastructure.</p> |
