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Sonus Networks’ Support of HD Voice Sets Stage for Accelerated Market Adoption

WESTFORD, Mass. Feb. 14, 2011 Sonus Networks, Inc. IP-based network solutions High-Density Media Gateway Network Border Switch, HD Voice Europe

As Sonus has many of the largest carriers in the world among its customers, this new software creates an immediate and significant on-ramp for these companies to implement HD Voice-ready networks. In fact, by opening this road for HD Voice to its installed base, Sonus is enabling a significant percentage of the market to immediately offer this service to their subscribers.

HD Voice

The key HD Voice codecs that Sonus supports are ITU-standard G.722, the oldest of wideband voice codecs, and AMR-WB, also known as G.722.2.

Joe McGarvey

In an increasingly globalized society, HD Voice plays a critical role because it delivers richer, more nuanced conversations. This improves a listener’s comprehension, helps to identify speakers on conference calls, improves the understanding of accents and prevents inaccuracies and misunderstandings. Service providers can use HD Voice to improve customer satisfaction and retain customers. Enterprises benefit from improved speech recognition in call centers and other noisy environments as well as text-to-speech applications. Aside from improving the quality of general business and personal conversations, HD Voice is viewed as a cost-effective way for broadcasters to eliminate ISDN lines and reduce the need for in-studio interviews.

Each time a call is transcoded from one codec to another, however, the quality degrades. By passing through HD calls without transcoding, or by properly transcoding between different HD codecs, Sonus keeps call quality high. In addition, Sonus HD Voice intelligently re-orders the codecs when setting up SIP sessions to align them with the end points of the call, and supports sessions that involve a mix of HD and non-HD endpoints, such as conference calls. Without Sonus’ solution, calls on different HD Voice codecs will default to a poorer quality, non-HD call.

David Tipping

High-Density Media Gateway Network Border Switch,

About Sonus Networks

December 31, 2009

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.

For more information, please contact:

Aline Kaplan
[email protected]
+1 978-614-8167

Paul Roberts

[email protected]

+1 781-418-2418

SOURCE Sonus Networks, Inc.

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