GDT

Engineering in the field of voice and data communications, networks, and communications infrastructures; consulting in the field of telecommunications technology related to voice and data communications, networks, and communications infrastructures; design of equipment, computer software, computer hardware for voice and data communications, networks, and communications infrastructures; technical support services, namely, technical advice related to the installation of computer software, trouble shooting of computer software problems, and monitoring of network systems, in the field of voice and data communications, networks, and communications infrastructures