The group's principal activity is to provide voice infrastructure products for the new public network. The products of the group include carrier-class switching equipment and software that help voice services to be delivered over packet-based networks. The voice infrastructure products include the gsx9000-tm- open services switch, the insignus-tm- softswitch and the sonus insight-tm- management system. The customers of the group include long distance carriers, local exchange carriers, Internet service providers, cable operators, international telephone companies and carriers that provide services to other carriers. The group operates in the United States, Europe and Asia.
