Computer software for use in the operation of mobile and wireless voice and data communications networks; [computer microchips;] telecommunication apparatus and instruments, namely, cordless, mobile, cellular, and [digital telephones,] base transceiver stations, base station controllers, [antennas, and mobile switching centers; radio telephones; modems; multiplexers; insulated telecommunication cables; pre-recorded magnetic data carriers and pre-recorded recording discs,] both used in the ope...