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

Ethernet network termination, aggregation, and switching equipment, namely, hardware and software for utilizing Ethernet, DSL, PDH, and SONET/SDH to deliver voice, data, and Ethernet services