| 摘要 |
Method for connecting of AGW terminations and PSTN terminations using alpha telephone exchange(EX) and a media gateway ontroller (MGC), and gateways (AGW, TGW). An extend mechanism for providing of advanced call services is executed comprising the steps of detecting call conditions for applying the extend mechanism, inserting of a gateway (eTGW) for providing advanced call services, in a bearer connection of the involved terminations (T1, T2, T3, T4), wherein the gateway is connected with a port of the exchange (EX), routing the bearer to a digital switching device (ACSF) of the exchange (EX) via the inserted gateway (eTGW) and providing the advance call service. A media gateway controller (MGC) and a exchange (EX) for executing the method comprises components for controlling the inserting and removing of said extend gateway (eTGW) and providing the advanced call service to the subscriber. <IMAGE> |
