Patent ID: 7092383

Claim:
A method for switching on a subscriber signal, the method comprising the steps of: defining a transmission path from a calling terminal device of a switched-through telecommunications network to a called terminal device of a packet transmission network using a network gateway function; indicating, via a signaling message which is defined for the packet transmission network and which comes from the called terminal device end, that the called terminal device is signaling the call to a subscriber; generating, when the signaling message which is defined for the packet transmission network occurs, a following signaling message which indicates that a subscriber signal has not yet been generated for the calling terminal device; processing the following signaling message, wherein the switching-on of the subscriber signal for the calling terminal device is brought about; and generating a standard signaling message which is defined for the switched-through telecommunications network and which indicates that the subscriber signal has already been generated for the calling terminal device, wherein signaling messages with a same structure as the following signaling message are transmitted, within a switching office of the switched-through network, to at least one of connecting units for connecting subscribers, connecting units for connecting user data transmission paths to other switching offices of the switched-through network, and connecting units for providing the network gateway function.