Automatic telephone system

Claim 1

IN AN AUTOMATIC TELEPHONE SYSTEM HAVING CROSS-BAR SWITCHING STAGES FOR EXTENDING CONNECTIONS BETWEEN STATIONS CONNECTED TO SUBSCRIBER LINES, INCLUDING A FIRST SWITCHING STAGE CONNECTED FOR SEIZURE BY A CALLING ONE OF SAID LINES FOR USE IN THE EXTENSION OF A CONNECTION TOWARD A CALLED LINE, A REGISTER MEANS CONNECTED FOR SEIZURE BY SAID FIRST SWITCHING STAGE INCLUDING REGISTER CIRCUITS FOR REGISTERING AT LEAST CERTAIN OF THE DIGITS TRANSMITTED BY THE CALLING SUBSTATION, A SELECTOR SWITCH FOR EXTENDING THE CONNECTION THEREOVER IN THE DIRECTION OF THE CALLED LINE, A SELECTOR CONTROL CIRCUIT FOR SAID SELECTER SWITCH CONNECTED FOR SEIZURE BY SAID REGISTER MEANS, A NUMBER GROUP CIRCUIT CONNECTED FOR SEIZURE BY SAID REGISTER MEANS IN RESPONSE TO THE REGISTRATION OF DIGITS INDICATING A CALL TO A LOCAL LINE, A BY-PATH LINK CIRCUIT CONNECTED FOR SEIZURE BY SAID NUMBER GROUP CIRCUIT INCLUDING MEANS IN SAID NUMBER GROUP FOR EXTENDING INFORMATION TO THE BY-PATH CIRCUIT INDICATING THE LINE GROUP IN WHICH THE CALLED LINE IS LOCATED, A SWITCHING STAGE INCLUDING A CONNECTOR CIRCUIT FOR A GROUP OF LINES INCLUDING THE CALLED LINE, A CONNECTOR CONTROL CIRCUIT FOR USE WITH SAID CONNECTOR CIRCUIT, MEANS IN SAID BY-PATH CIRCUIT INCLUDING MEANS FOR SEIZING SAID CONNECTOR CONTROL CIRCUIT AND MEANS FOR TRANSMITTING A CALL SIGNAL OVER THE ORIGINATING REGISTER TO SAID SELECTOR CONTROL CIRCUIT RESPONSIVE TO SEIZURE OF AN IDLE CONNECTOR CONTROL CIRCUIT, AND MEANS IN SAID NUMBER GROUP CIRCUIT FOR EXTENDING CERTAIN OF THE INFORMATION RELATIVE TO THE CALLED LINE LOCATION OVER THE BY-PATH LINK CIRCUIT TO THE CONNECTOR CONTROL CIRCUIT FOR USE IN CONTROLLING THE CONNECTOR CIRCUIT TO EXTEND THE CONNECTION TO THE CALLED LINE.