42 design, and mapping and documentation, namely, layout, drafting and blueprinting of hybrid optical fiber and coaxial cable television networks for others; integration of telecommunications networks for hybrid optical fiber and coaxial cable television systems, namely, integration of third party content, implementation of emergency alert systems, integration of advertisement insertion systems and network management systems, integration of design and testing systems, integration of fiber hubs and wiring centers; telecommunication network testing and certification services for others in the field of hybrid optical fiber and coaxial television systems, namely, network certification of two-way broadband testing, equipment bench testing, sweep and balance certification, system acceptance testing and proof of performance certification