How to handle out-of-band processing in personal communication switching systems

摘要

The present invention relates to an outgoing call processing method in a personal communication switching system in which an outgoing call from a local mobile subscriber can be relayed to a PSND fixed subscriber accommodated in a foreign exchange in a plurality of mobile subscriber stations, A personal communication switching system in which a plurality of ASS-Ws connected through a controller are connected to an HLR via an ASS-T to which an INS and another mobile communication switching center are connected, the system comprising: The mobile subscriber station translating the station number in the state that the mobile subscriber is set up and occupying the outgoing call corresponding to the personal communication number corresponding to the dialed call, A third step of connecting a TST switch for relay call processing, a second step of transmitting a first message according to the third step, A fourth step of notifying the originating base station controller of the reception state when the called reception completion message is received, a fifth step of notifying the originating base station controller of the reception subscriber response when the reception response message from the other station exchange is received, And a sixth step of disconnecting the corresponding TST switch when the relay call is released, and then recovering the trunk line and releasing the outgoing call.