37 Consulting in the field of installation, integration, operation, maintenance, repair and decommissioning of telecommunications networks; consulting in the field of installation, integration, operation, maintenance, repair and decommissioning of telecommunications products; consulting in the field of installation, integration, operation, maintenance, repair and decommissioning of television, electrical, fiber optic, and marine cable lines; consulting in the field of installation, integration, operation, maintenance, management, repair and decommissioning of satellite communications systems; installation and maintenance of telecommunication networks; installation and maintenance of telecommunication products; installation of telephone lines; installation, testing, optimization, and maintenance of wireless broadband networks; installation, testing, optimization, and maintenance of video networks; installation, testing, optimization, and maintenance of voice communication networks; providing enhanced 911 (E-911) sustainment services, namely, installation, testing, optimization, and maintenance of enhanced 911 communication networks; construction project management services in the field of telecommunications; electrical and cable television contracting; telecommunications equipment refurbishing; construction of cellular phone towers, communication antennae, communication towers, telephone lines, fiber optic transmission lines, and satellite receiving stations; waste disposal services for others in the field of telecommunication equipment