METHOD FOR SETTING UP VIRTUAL CONNECTIONS IN PACKET SWITCHING NETWORKS

摘要

Method for setting up virtual connections in packet switching networks. In response to a call request with which the set up a virtual connection is requested and that is supplied to an originating switching center (for example, Verm1) of a first packet switching network (PVN1), the appertaining call request is modified when a suitable transmission path within the first packet switching network is not present. The modified call request is then transmitted via a network interface location (UE1) to a second packet switching network (PVN2) in order to set up an alternate route upon involvement of a further network interface location (UE2), to the destination switching equipment (Verm1) of the first packet switching network (PVN1) that participates in the virtual connection that was just requested.