Device for the packet-based access of classical isdn/pstn subscribers to a switching system

Abstract

The invention relates to a device for the packet-based access of classical ISDN/PSTN subscribers to a switching system. The convergence of packet-based networks and TDM networks leads to a situation where classical analogous and ISDN subscribers and private branch exchanges have to be accessed via packet-based transmission methods. This problem is solved by the present invention by integrating the devices of a subscriber network that according to the state of the art are located outside the switching systems and that provide the main functions such as addressing, message routing for signaling messages and TDM interface for local branch exchange into the periphery of the switching system. The functionality of the interlace that focuses on the subscriber-side is thus also integrated into the periphery of the switching system. At the same time, the approach to the subscriber network and the mode of using it remain the same for the internal devices (kernel) of the switching system.