42 Consultancy in the field of telecommunications engineering; Consultancy in the field of telecommunications technology; Design and development of wireless networks; Design and development of wireless data transmission apparatus; Design, deployment and management of wireless computer networks for others; Analysis of technical data; Data mining services; Testing, analysis and monitoring of system algorithms for generating telecommunications and navigation data; testing, analysis and monitoring of system algorithms for processing telecommunications and navigation data; testing, analysis and monitoring of telecommunication and navigation signals; testing, analysis and monitoring of telecommunication signals