Sonus Networks Showcases End User Voice Services for Residential and Enterprise Networks at Wireless Japan 2007


Sonus Chief Executive Officer Gives a Keynote Speech on All-IP in Wireless

WESTFORD, Mass. and TOKYO, July 12 - Sonus Networks (NASDAQ:SONS), a leading supplier of service provider Voice over IP (VoIP) infrastructure solutions, announced that at Wireless Japan 2007 (Booth #A407), the company will showcase its award-winning suite communications solutions, including applications supported by Sonus' IP Multimedia Subsystem (IMS)-based architecture. Sonus applications are designed to showcase the potential of IP-enabled voice and multimedia services to transform the communications experience. Demonstrations include:

o Residential Services: Many of today's most popular consumer services
are being packaged as bundled offerings. Now that bundles are
commonplace, many network operators are looking to include
functionality that goes beyond the established services such as caller
ID and call waiting. Sonus will show how capabilities such as ring-
back tones, parental controls, and broadcast messaging can be added to
consumer bundles to create a differentiated service.
o National Business Services: The Internet has reduced the geographic and
temporal constraints associated with connecting buyers and sellers.
Unfortunately, the move to e-commerce has left behind the "comfort
level" most users have when conducting business face to face. As a
result, many web transactions are aborted prematurely or result in
customer frustration. Sonus will show how the combination of Sonus
voice technology and web services can be used to improve the Internet
user experience and generate additional revenue opportunities.
o Local Business Services: In the past, most people turned to their
"yellow pages" to find goods and services close to their home or
business, a model that enabled network operators to generate
advertising revenues in addition to usage-based revenues. Sonus will
demonstrate how carriers can supercharge this model with interactive
advertising that combines location and web services to deliver
customers directly to the merchant's storefront.

In addition to the Company's presence on the show floor, Sonus CEO & Chairman, Hassan Ahmed, will be giving a keynote speech on "All-IP in Wireless - Sonus Networks Strategy," Thursday, July 19th, at 11:50 am.

Wireless Japan is the largest tradeshow specializing on the wireless and mobile industry in Japan. Since its first show in 1997, Wireless Japan has been focusing on the growing wireless market in Japan from both mobile network and handset points of views. For more information, go to http://www8.ric.co.jp/expo/wj2007/en/index.html

About Sonus Networks
Sonus Networks, Inc. is a leading provider of voice over IP (VoIP) 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 http://www.sonusnet.com/.

Source: Sonus Networks

CONTACT:US Media Relations, Sarah McAuley, +1-978-614-8745, smcauley@sonusnet.com; Japan Media Relations, Miki Matsubara, +81-3-5457-8210, mmatsubara@sonusnet.com

Web site: http://www.sonusnet.com/
http://www8.ric.co.jp/expo/wj2007/en/index.html

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