| 摘要 |
PURPOSE: A call direction switching method is provided to be capable of automatically switching a call into terminating according to request of a user when call terminating is caused at call dispatching. CONSTITUTION: A call direction switching method is described in which when call transmission is caused by the first subscriber(400), a TMSI buffer is assigned and a call process progressing state is stored in the assigned buffer(401). After completion of information request and authentication to whether the originating subscriber is a valid subscriber(402), TMSI information assigned at a database of a corresponding subscriber is stored. If terminating request for calling the first subscriber is generated by the third subscriber, the stored information is searched and whether an assignment requesting message by call sending of the first subscriber is send to the first subscriber is checked(411,412,413,420). If the message is not sent, a call manipulation procedure of the first subscriber is switched into call terminating(430,432). |
