Plural service telephone connectors controlled by common markers

Claim 1

IN A TELEPHONE SYSTEM AND THE LIKE, INCLUDING CONNECTOR SWITCHES HAVING ACCESS TO LINES OF DIFFERENT SERVICE CLASSES INCLUDING INDIVIDUAL LINES AND PRIVATE BRANCH EXCHANGE LINES AND ALSO PARTY LINES, AND HAVING MARKER DEVICES COMMON TO A PLURALITY OF CONNECTOR SWITCHES FOR CONTROLLING THE OPERATION THEREOF IN EXTENDING CALLS, THE COMBINATION OF A TRANSMISSION DEVICE INDIVIDUAL TO A CONNECTOR SWITCH AND DISPOSED IN THE CONNECTION PATH INVOLVED SEPARATELY FROM THE CONNECTOR AND AHEAD THEREOF FOR EXECUTING ALL FUNCTIONS REQUIRED IN THE BUILDING UP OF AND EXTENSION OF CONNECTIONS TO ANY OF THE NAMED SUBSCRIBER LINES OF THE DIFFERENT SERVICE CLASSES, A CIRCUIT ARRANGEMENT COMPRISING SWITCHING MEANS FOR DIFFERENTLY MARKING BY WAY OF THE CONTACT BLANK OF THE CONNECTOR OVER WHICH THE DESIRED SUBSCRIBED LINE IS MARKED BY A MARKER, THE KIND OF SERVICE CLASS OF THE DESIRED SUBSCRIBER LINE TO WHICH A CALL IS TO BE EXTENDED, MEANS CONTROLLED BY SAID SWITCHING MEANS FOR TRANSMITTING TO THE RESPECTIVE TRANSMISSION DEVICE A CRITERION CORRESPONDING TO THE KIND OF SERVICE CLASS OF THE DESIRED SUBSCRIBER LINE, SAID CRITERION BEING IDENTICAL IN THE EXTENSION OF CALLS TO INDIVIDUAL LINES AND TO PRIVATE BRANCH EXCHANGE LINES, RESPECTIVELY, FURTHER SWITCHING MEANS IN SAID TRANSMISSION DEVICE, SAID CRITERION BEING EFFECTIVE IN SAID TRANSMISSION DEVICE, TO ENERGIZE SAID FURTHER SWITCHING MEANS FOR INITIATING TRANSMISSION OF RINGING CURRENT TO A CALLED INDIVIDUAL LINE AND TO A CALLED PRIVATE BRANCH EXCHANGE LINE, RESPECTIVELY, MEANS FOR TRANSMITTING TO SAID TRANSMISSION DEVICE A DIFFERENT CRITERION SIGNIFYING EXTENSION OF A CALL TO A PARTY LINE STATION, SAID DIFFERENT CRITERION BEING IN SAID TRANSMISSION DEVICE EFFECTIVE TO PREPARE TRANSMISSION OF CODED FREQUENCY RINGING TO A CALLED PARTY LINE.