Coupling method for service channels of a transmission network and device for implementation

摘要

The present invention relates to transmission networks, for example digital networks, able to establish point to point links between a multitude of stations and more particularly the production of fail-safe auxiliary equipment for such networks. The invention consists essentially in arranging, for each service channel, a backup service channel and in effecting, in each station, the choice of transmission of service information over the normal path or the backup path as a function of specific criteria provided by the receiver portion of each station. Application to the setting up of a conference for the various stations of the network and to the connecting to the external switched network. IMAGE