Telecommunications products, namely hardware and software utilizing Ethernet, DSL, and SONET to deliver voice and data services, the hardware being modular chassis with interface slots that receive Ethernet and telecom modules, and fixed configuration channel service units that provide Ethernet and telecom interfaces

Network interface devices, namely, packet assurance demarcation units for use by telecom service providers, carriers and cable operator to create, monitor and assure the performance of their services

Telecommunication equipment to facilitate the delivery of Ethernet services, namely, Ethernet switches, Ethernet multiplexers, Ethernet cross connect devices, Ethernet aggregators, Ethernet demarcation devices, and their accessories, namely, Ethernet cables