Telecommunication networks and services. Measuring and control devices. Electronic equipment for cable television. Radio data transmission services. Communications. Service for electronic equipment. Trade representative.
Telecommunication networks and services. Communications. Radio data transmission services. Satellite telecommunications services. Telecommunications designing.
Radio data transmission services. Communications. Installation and maintenance of telephone exchanges. Mobile telecommunications. Service/maintenance of communications equipment. Internet services. Satellite telecommunications services.
Radio data transmission services. Communications. Telecommunication networks and services. Service/maintenance of communications equipment. Radio communications - network troubleshooting and design.
