Abstract: A time division multiplex system is provided with a conference link to a common transmission highway. The conference link includes a plurality of incoming conference lines with in-gates disposed therein, and a plurality of outgoing conference lines with respective out-gates disposed therein. A common control containing a cyclic memory controls the in-gates for sequentially connecting the incoming conference lines to the common transmission highway during specific time slots, and controls the out-gates to connect an outgoing conference line to the common highway during a specific time slot to establish the conference connection. Each outgoing conference line is connected to a sample and hold circuit for reconstruction of the sampled signal transmitted thereto from the transmission highway, and thereafter to a common adder before being coupled to the incoming lines of the conference link.An operator's console is provided from which the conference connections are established.