D-AMPS

telecommunications equipment, namely telephone switches, telephone or radio base stations for transmission of voice and data, computer based telephone switches for mobile switching center (MSC), home location register (HLR), or service control point (SCP) for implementing intelligent network services, computer based telephone switches used as multi-media platforms enabling messaging applications, mobile telephones, telephone modems, antennas, digital and analog radio transmitters and receivers, facsimile machines; computer programs for traffic handling within a mobile telephone system, for provision of voice channels and hand-offs between radio cells, for keeping information about the radio subscriber location, for provision of data for communication between telephone switches, for administration of mobile subscriber data, for maintenance of base stations for telephone or data communications, and for radio network performance supervision and statistics

telecommunications services, namely cellular telephone services; long distance or local distance telephone services; electronic transmission of messages and images; providing information about management, operation, or maintenance of cellular telephone systems