Sonus Networks Ushers in New Generation of IP Voice Services

Investor Relations:
Jocelyn Philbrook
Media Relations:
Lucy Millington

At NXTComm 2008, Industry Leader Sets the Global Stage for Enhanced Consumer Experiences

WESTFORD, Mass., June 12, 2008 – Sonus Networks, Inc. (Nasdaq: SONS), a market leader in IP communications infrastructure, today announced its plans to demonstrate at NXTComm 2008 held in Las Vegas from June 17-19 how operators around the globe can launch a new consumer experience that promises to redefine the telecommunications industry. In booth SU9208, Sonus will show operators how they can deliver a consumer or enterprise experience that bridges traditional telecommunication with the revolutionary world of IP. Visitors to the Sonus booth will see firsthand the edge that Sonus provides in the marketplace with a comprehensive array of products and solutions targeted at today's always on lifestyle.

"Sonus has been focused on the future of voice for over ten years," said Hassan Ahmed, chairman and CEO at Sonus Networks. "Now, our vision is being realized as operators across the globe are rolling out IP-based networks to deliver the next generation of voice services. NXTcomm08 validates the idea that subscribers are ready for new multimedia services. Sonus is uniquely positioned to provide those services with our end-to-end, IP-based infrastructure solutions." Sonus will showcase its vision of the future at booth SU9208 with live demonstrations of solutions and applications that depict the experience in each crucial element of the network including:

  • Residential and Business Services: Sonus solutions open up a new world of IP-voice opportunities beyond the traditional network edge to business and residential customers. At NXTcomm, Sonus will demonstrate how it's Voice over Broadband (VoBB) solutions can deliver IP voice/multimedia over copper, cable, DSL and WiMAX
  • Connectivity: Sonus will demonstrate how it's changing the way networks connect, by reaching out to the past with PSTN interconnectivity and looking forward to the future with centralized call routing, number portability solutions, international gateways and more
  • Security: The Sonus Network Border Switch is the evolution of border security. See how Sonus' unique solution combines softswitch functionality with advanced session border control features for a low-cost, high-security solution to secure peering

This year, Sonus will have an extended presence at NXTComm, exhibiting for the first time in the OSS/BSS Technology Pavilion, booth # SL1623F. Sonus now offers a variety of operational support system (OSS) solutions to help operators overcome the provisioning-related challenges in launching advanced IP-services. The Sonus Insight Customer Portal is a customer care system which allows operators to improve customer care by offering web-based access for customers. The system has been designed to improve an operator's immediate customer care needs while providing a full migration path to Sonus Activator, a carrier-grade provisioning OSS, which enables operators to streamline the delivery of IP-voice and a wide range of IP-service bundles. When used together, the Portal and Activator solutions allow operators to turn-up and manage their Sonus services in a quick, cost-effective and customer-friendly manner.

In addition to the Company's presence on the show floor, Clarke Ryan, general manager of Sonus' Wireless Business will be participating in a panel discussion, "Mobile Unified Communications - The Next Big Thing" on Thursday, June 19th, at 3.30 pm in Room S-233.

Editors Note

To arrange a media interview or booth visit with Sonus Networks at NXTComm 2008, please contact Lucy Millington at

About Sonus Networks

Sonus Networks, Inc. is a leading provider of IP-voice infrastructure solutions for wireline and wireless service providers. With its comprehensive IP Multimedia Subsystem (IMS) solution, Sonus addresses the full range of carrier applications, including residential and business voice services, wireless voice and multimedia, trunking and tandem switching, carrier interconnection and enhanced services. Sonus' voice infrastructure solutions are deployed in service provider networks worldwide. Founded in 1997, Sonus is headquartered in Westford, Massachusetts. Additional information on Sonus is available at

This release may contain forward-looking statements regarding future events 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 Item 1A "Risk Factors" of Sonus' Quarterly Report on Form 10-Q for the period ended March 31, 2008, filed with the SEC, which identifies important risk factors that could cause actual results to differ from those contained in the forward-looking statements. Risk factors include among others: the impact of material weaknesses in our disclosure controls and procedures and our internal control over financial reporting on our ability to report our financial results timely and accurately; the unpredictability of our quarterly financial results; risks and uncertainties associated with the Company's restatement of its historical stock option granting practices and accounting including regulatory actions or litigation; risks associated with our international expansion and growth; consolidation in the telecommunications industry; and potential costs resulting from pending securities and patent litigation against the Company. Any forward-looking statements represent Sonus' views only as of today and should not be relied upon as representing Sonus' views as of any subsequent date. While Sonus may elect to update forward-looking statements at some point, Sonus specifically disclaims any obligation to do so, except as required by law.

Sonus is a registered trademark of Sonus Networks, Inc. All other company and product names may be trademarks of the respective companies with which they are associated.

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