Sonus Networks Continues to Build and Expand Open Services Partner Alliance

SUPERCOMM 2001 BOOTH #2312

Twelve Additional Partners Help Sonus Bring Diverse Set of Enhanced Services and Solutions to Carrier Market

WESTFORD, Mass., June 4, 2001 – Sonus Networks (Nasdaq: SONS), a leading provider of voice infrastructure solutions for the new public network, today announced twelve companies have joined the Open Services Partner Alliance(TM) (OSPA), further increasing the range and scope of the telecom partner initiative. The OSPA includes more than 140 companies that offer products and applications that are complementary to Sonus' product line and provide integrated packet network solutions to the service provider market. The newest OSPA members include ADTech, Connexn Technologies, Continuous Computing, IP Unity, ipVerse, MagNetPoint, NxNetworks, Pulsar Communications, Raviant Networks, Riverstone Networks, SynapSys and Vicorp.

"The rapid growth of our partner program underscores the industry's escalating demand for complete packet voice solutions that can be applied to next-generation networks," said Terri Griffin, vice president of marketing programs, Sonus Networks. "Our partners help us offer end-to-end network solutions and services that carriers require to meet the competitive pressures within the telecom industry today. Ultimately, these comprehensive solutions benefit our carrier customers because they can be integrated quickly and cost effectively into the packet voice network."

The most recent companies to join the OSPA offer enhanced services and solutions for carriers and service providers:

  • ADTech offers a portfolio of products including IP phones, multimedia switches and gateways, as well as VoIP security solutions based on the unique characteristics of the Smart Card. For example, the company's tipcome SI-150 is a high performance IP phone that operates at 10/100 megabits per second. ADTech's IP phone uses a built-in Smart Card reader (patent pending), which facilitates value-added services such as on-line payment, authentication, voice encryption and management of prepaid cards. The tipcome IP Phone is available in SIP or H.323 versions. (www.adtech.be)   
  • Connexn Technologies offers a wide range of software applications to the service provider market. Through the use of quantitative models, Connexn Technologies connects and automates business processes to help service providers correct process problems and improve revenue. The CONNEXn application platform is an integrated application development platform upon which more than 50 customer solutions have been built. (www.cnnxn.com)   
  • Continuous Computing is a leading provider of high-availability platform solutions for telecom equipment manufacturers. Continuous Computing designs, develops, and manufactures high-availability platforms for voice-over-packet, wireless infrastructure, and IP optical control applications. The company's Hi-5(TM) Network Bus Platform provides communication between standalone CompactPCI cards via Ethernet rather than the PCI bus. The company's upSuite(TM) middleware takes advantage of the Hi-5 to provide over five-9's of availability by featuring sub-second failover and transparent file system replication over TCP/IP. (www.ccpu.com)   
  • IP Unity enables service providers to deliver enhanced voice, data and web-enabled applications and services over IP and PSTN networks. The Harmony6000TM product family, comprising a media server and an application server, works in conjunction with softswitch platforms to deliver enhanced services. (www.ipunity.com)   
  • ipVerse is a softswitch supplier that enables multi-vendor solutions to empower service providers to rapidly deploy new, revenue-generating services. For example, ipVerse ControlSwitch acts as an open, intelligent operating system for converged communications services that work seamlessly across both traditional and next-generation networks. (www.ipverse.com)    
  • MagNetPoint develops software applications that enable communications and messaging service providers, ISPs, hosting service providers and large enterprises to build, test, change and deploy customized mobile telephony products and services. MagNetPoint's SCE software architecture enables access to business data, web commerce applications, calls and messages. The MagNetWorks offering consists of hosted data centers, communications software, a secure developer's testing "playground," and integration services. (www.magnetpoint.com)    
  • NxNetworks provides Internet telephony and data networking solutions for enterprises, ISPs, CLECs, and telcos. For example, the company's Nx 6000 is a media gateway router that packetizes, encrypts, and routes voice traffic over IP and ATM networks and scales from entry level to traditional and next generation telephony service provider levels. The Nx 6000 enables the delivery of new converged IP applications and solutions, ranging from dial tone services to advanced carrier-class switching functionality. (www.nxnetworks.com)   
  • Pulsar Communications develops applications and integrated solutions for both Tier 1 carriers and smaller emerging carriers. The applications are intuitively accessible and controlled by voice activation or a user's personal computer. Pulsar's applications are integrated into a common call control layer of a software platform, called WavPort, that enables a seamless delivery of products to subscribers of legacy switching networks, new generation networks that employ media gateways and servers and support MGCP or H.248, and packet-based networks that support H.323 and SIP. The company's Voice Activated feature server and its complementary Web Portal permit voice and web activation of both Class 4 and Class 5 call control features and applications from wireline phones, wireless handsets, PDAs and computer terminals. (www.pulsarcomm.com)
  • Raviant Networks provides telecommunications service providers and network element manufacturers with software solutions that enable the rapid development and delivery of innovative products and services. Raviant's Preform(TM) DE Development Kit, PDK(TM) , provides a software framework that enables the rapid creation and deployment of high performance call-path Preform Data Engine applications. The Raviant eXtensible Dial-Plan Toolkit, XDP(TM) , is a set of reusable Preform Data Engine building blocks that can be used to assemble sophisticated high-performance dial-plan applications without low-level coding. (www.raviant.com)   
  • Riverstone Networks builds routers that deliver packetized voice traffic to the core of metropolitan area networks. Riverstone's flagship product line, the RS series of Metro Routers, provides hardware-based service creation technologies including dynamic provisioning and MPLS VPNs, unparalleled interface versatility for service delivery over any network, and hardware-based, connection-oriented accounting services. (www.riverstonenet.com)   
  • SynapSys develops leading edge "turnkey" enhanced solutions for the telecommunications industry utilizing a next-generation, carrier-class architecture. The company offers a complete enhanced services platform solution that runs on its proprietary NUCLEUS software. NUCLEUS is a modular, enhanced services platform for processing voice traffic. The platforms' primary feature sets include call validation, caller authentication, rating, routing and billing. Other notable platform benefits include the reduction in network utilization costs, IP-based control of network edge devices, reduction in call set-up/teardown overhead, total protocol independence, and the utilization of browser-based interfaces. (www.synapsysinc.com)   
  • Vicorp is a global software development company that specializes in offering enhanced services platforms across a variety of networks (wireline, wireless, IP, cable). Vicorp has four product offerings including BETEX-ESP (enhanced services platform), Enhanced Payment Services (for pre-paid, post-paid and calling card services), a full range of media servers and a new middleware platform called the Communications Convergence Engine (CCE).  (www.vicorp.com)

About Sonus' OSPA

Founded on the combination of Sonus' Open Services Partner Alliance (OSPA) Program and the INIP PoweredSM Partner Program from the acquisition of telecom technologies, inc., the OSPA has gained significant industry momentum, with membership of more than 140 leading independent vendors. The OSPA provides a framework that offers service providers end-to-end packet-based network solutions using best-of breed technologies and applications. The goal of the OSPA is to empower standards-based interoperability between applications, hardware vendors, and the Sonus product suite. An integral part of the Sonus OSPA, the Interoperability Laboratory is the first in the industry where product interoperability is verified, trial testing is performed, and complete solutions are ultimately produced. Additional information on the OSPA is available at http://ospa.sonusnet.com.

About Sonus Networks

Sonus Networks, Inc. is a leading provider of voice infrastructure products for the new public network. Sonus' solutions enable service providers to deploy an integrated network capable of carrying both voice and data traffic, and to deliver a range of innovative, new services. The Sonus Open Services Architecture (OSA) and award-winning Packet Telephony suite cut the time-to-market for competitive new service products, allowing carriers and third-party developers to expand marketshare and build important new revenue streams. Its highly scalable products fully interoperate with and extend the life and utility of today's public network. Sonus embodies in its management and staff decades of experience in developing carrier-class voice, data and multimedia solutions for implementation in the world's largest networks. Sonus, founded in 1997, is headquartered in Westford, Massachusetts. Additional information on Sonus is available at http://www.sonusnet.com.

This release may contain projections or other forward-looking statements regarding future events or the future financial performance of Sonus that involve risks and uncertainties. Readers are cautioned that these forward-looking statements are only predictions and may differ materially from actual future events or results. Readers are referred to Sonus' Annual Report on Form 10-K, dated March 28, 2001, filed with the SEC, which identifies important risk factors that could cause actual results to differ from those contained in the forward-looking statements. These risk factors include, among others, the Company's ability to grow its customer base, dependence on new product offerings, market acceptance of its products, rapid technological and market change, integration risks relating to the acquisition of telecom technologies and manufacturing and sourcing risks.

Open Services Partner Alliance and Open Services Architecture are trademarks of Sonus Networks. INtelligentIP is a registered trademark of Sonus Networks. INIP Powered is a service mark of Sonus Networks. All other company and product names may be trademarks of the respective companies with which they are associated.

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