Sonus Networks, Inc. provides networked solutions for communications service providers and enterprises in the United States, Europe, the Middle East, Africa, and the Asia Pacific. Its solutions address the need to link and leverage multivendor, multiprotocol communications systems and applications across customers networks. The company offers a portfolio of session border controllers (SBC) that address the network requirements; and voice over Internet protocol (VoIP) switches for converting any type of voice signal into Internet protocol (IP) packets and transmitting those IP packets over a data network. Its products also include policy and routing server, a central routing and policy engine that provides call routing intelligence and policy intelligence for session initiation protocol sessions across the network, as well as act as a central control and provisioning point for various switches or SBCs. In addition, the company provides Sonus ASX Call Feature Server that offers residential VoIP call features to time division multiplexing and IP devices in a geo-redundant architecture; and network management solutions to help manage and integrate its networked solutions with internal provisioning and billing systems. Further, it offers consulting, end-to-end design, integration, deployment, migration, and operation support services; and customized engagements, training workshops, and interoperability/verification testing services. The company serves long distance carriers, local exchange carriers, Internet service providers, wireless operators, cable operators, telephone companies, carriers that provide services to other carriers, financial institutions, retailers, state and local governments, and other multinational corporations. Sonus Networks, Inc. was founded in 1997 and is headquartered in Westford, Massachusetts.

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