| 摘要 |
<p>The invention relates to a telecommunication system and a method for authenticating a subscriber in a telecommunication system. The system comprises a transmission network having subscriber identity codes of a first format and a first subscriber authentication procedure. An exchange (MSC1, MSC2) of the transmission network is connected to a subsystem having subscriber identity codes of a second format and a second subscriber authentication procedure. The calls of the subscribers (MT1 to MT6) of the subsystem are routed through the transmission network and said exchange (MSC1, MSC2). In the invention, the authentication of both subscriber types is enabled in the transmission network by locating the parameter generation algorithms of both the first and the second authentication procedure in a transmission network authentication centre (AC). The proper algorithm for each subscriber to be authenticated is selected on the basis of the type of the subscriber (MS, MT1 to MT6).</p> |
