1
John T Boatwright, David G Prince, William F Haskett, Helmut Koch: Special services add-on for dial pulse activated telephone switching office. Summa Four, Cesari & McKenna, November 4, 1980: US04232199 (167 worldwide citation)

A special services add-on specifically adapted for use in a dial pulse activated telephone switching office such as a step-by-step office to enable the addition of various modern features thereto, thereby extending the economic life of the office. The add-on is a stored program, processor based syst ...


2
Chuck Kolbenson, Paul Nelson, Kenneth St Hilaire, Alan Tingley, Gerry Tenuta, Peter Sandstrom: Telephone switch providing dynamic allocation of time division multiplex resources. Summa Four, Cesari and McKenna, January 14, 1997: US05594727 (63 worldwide citation)

A switch, which connects ports on a customer port module to ports on a network port module via time slots on a dime division multiplexing bus, determines for each connection a number of required time slots, based on the current switch configuration and/or the signal traffic at the associated port. T ...


3
Michael E Cote, David J Luneau, Paul R Schechinger: Flexible call-processing apparatus for ISDN telephone channels. Summa Four, Cesari and McKenna, June 20, 1995: US05426634 (14 worldwide citation)

A call processor (10) for processing integrated-services digital-network (ISDN) calls is subject to real-time control by a host computer (28) but stores rules specified ahead of time by a manual input device (32). By changing the entered rules, a user can adapt the call processor to a wide variety o ...