Computer hardware and software, used alone or in combination, for interconnecting, establishing, managing, securing, monitoring, controlling, operating, and accessing local, wide, and global area networks; computer hardware and software, used alone or in combination, for routing, switching, transmitting, processing, filtering, analyzing, securing, and storing data, video or voice traffic, packets, or other forms of communications; computer hardware and software, used alone or in combination, for providing security functionality for networks or electronic devices, such as providing firewall filters, virtual private networks, and protection against network intrusion and viruses; computer hardware and software, used alone or in combination, for use in or with a network; downloadable instructional materials, namely, manuals and guides in the fields of networking, telecommunications, and network security, and establishing, managing, and operating local and wide area networks

Installation, maintenance, and repair services in the fields of computers, telecommunications, networking, communications, and network security

Consulting in the fields of computers, networking, communications, and network security; security services for computer and telephony systems; computer support services in connection with hardware and software for interconnecting, managing, securing, monitoring, controlling, operating, and accessing local and wide area networks and telephony systems; design, testing, engineering, research and advisory services relating to computers, telecommunications, networks, computer software, computer programming, and network security