| 摘要 |
<p>The invention relates to an interface for change of state (CE), connected to an allocator (AL) which allocates a network address to a terminal (T1), for preparation of a connection as reply to a first identifier (I1a) for the first terminal transmitted by the access network (R1) of the same. The interface places a terminal indicator (ET1) in first and second states when the terminal is connected or disconnected respectively, for a packet network of the internet type (RP). A database server (GE, BE, DE) records at least a second status indicator (ET1) for the terminal (T1), transmitted by the interface (CE) each time that the indicator (ET1) for the terminal (T1) is altered such that each second terminal (T2) receives the status indicator of the first terminal (T1) by broadcast or on request.</p> |
