This invention relates to a telecommunication system including a conference information SYSTEM INCLUDING A NUMBER OF ENTRIES each equipped with a separate node (2, 4, 8). These nodes CONFERENCE BE interconnected via a switching network (1), as it is a Public Switched Telephone Network, and where each participant node (2, 4, 8) includes means for receiving an information signal CONFERENCE Summation OTHER PARTICIPANTS FROM NODE, means for adding the signal generated at each node CONFERENCE ON SIGNAL summation, AND MEANS FOR CONTROLLING THE FUNCTIONS OF CONFERENCE. According to this invention all nodes (2, 4, 8) of the conference connection are interconnected in a ring FULL CONFERENCE (11) by connecting UNICA (12) in which information signals are transmitted from one node to another one direction (arrow 12). SOME ADVANTAGES OF THIS SYSTEM IS POSSIBLE BUT THE EXCHANGE IS NOT SUPPLIED CENTRALLY ARRANGED appropriate services for a conference. OS CONFERENCE SERVICES SUITABLE FOR DISTRIBUTED BY ENTERING EACH NODE TERMINAL EQUIPMENT. RIMIENTO of lines Halves, BUT STILL THE SAME traffic capacity can be manipulated by the system. ORA all nodes GET IN THE RING SAME STATE, AND THEREFORE all nodes can be designated as CIRCUITS almost identical.
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