Extended public switched telephone network architecture with enhanced subscriber control on call setup

摘要: A telephone call setup technique, based on an expanded originating subscriber dialing procedure, utilizing existing Public Switched Telephone Network (PSTN) facilities, provides a remote control means to directly instruct customer premise switching module at the end of terminating loop, which automatically routes subscriber's station specified by subscriber. This technique essentially expands definition PSTN's automatic system boundary every loop. Not only individuals residential can be reached separately, but also on-demand switched data communications routed through PSTN specific terminals without concern disturbing occupants premise. The architecture this PABX functions single line services. replaces basic auto-attendant PABX's. Furthermore, with addressing procedure (secondary dialing) converged back central office, subscribers using decadic pulse instruments, could not perform end-to-end signalling, now access stations, as if they were connected individually.