construction services, namely, the construction of buildings, towers, antennas and electrical equipment for fixed sites used in providing mobile telephone service

engineering and design services, namely, site acquisition, surveying, environmental assessment, structural analysis, cost estimating and project scheduling for fixed sites used in providing mobile telephone service

antenna supporting towers and enclosures for use in fixed sites for providing mobile telephone service, the enclosures being for - radio transmitters and receivers and controls therefor, for tower light controls, for generators and for DC power converters