Sonus Networks Announces 2012 Investor Day

Sonus to Ring NASDAQ Stock Market Opening Bell Prior to the Event

WESTFORD, Mass. – (BUSINESS WIRE) – Sonus Networks, Inc. (Nasdaq: SONS), a global leader in SIP communications, today announced it will host its 2012 Investor Day for analysts and investors on Thursday, September 13, 2012 at the NASDAQ MarketSite in New York City . The company will also preside over the NASDAQ Stock Market Opening Bell prior to the event.

Presentations from Sonus Networks' President and CEO Raymond P. Dolan and members of the company's senior management team will begin at 10:00 am ET .

Event: Sonus Networks 2012 Investor Day
Date: Thursday, September 13, 2012
Opening Bell Ceremony: 9:30 am ET
Management Presentations: 10:00 am to 1:00 pm ET , followed by lunch
Location: NASDAQ MarketSite, New York, NY

Attendance at the 2012 Investor Day is by invitation only. Interested sell-side analysts and institutional investors may request an invitation by contacting Sonus Networks' Vice President of Investor Relations Patti Leahy at pleahy@sonusnet.com.

Opening Bell Live Webcast:

A live webcast of the NASDAQ Opening Bell will be available at:
http://www.nasdaq.com/about/marketsitetowervideo.asx.

Investor Day Live Webcast:

The Investor Day webcast will be available live on the Investor Relations page of the company's website http://investors.sonusnet.com/. Presentations will also be available on the website. A recorded replay of the webcast will be available on the same Investor Relations page shortly after the conclusion of the Investor Day.

Tags:

Sonus Networks , Sonus, SONS, Investor Day, Analyst Day, Technology, Internet, Communications, Conference, IP-based network solutions, SBC, Sonus SBC 5100, Sonus SBC 5200, Sonus SBC 9000, session border controller, session management, SIP trunking, Cloud VoIP communications, unified communications, UC, VoIP, IP, TDM.

About Sonus Networks :

Sonus helps the world's leading communications service providers and enterprises embrace the next generation of SIP-based solutions including VoIP, video and Unified Communications through secure, reliable and scalable IP networks. With customers around the globe and 15 years of experience transforming networks to IP, Sonus has enabled service providers and enterprises to capture and retain users and generate significant ROI. Sonus products include session border controllers, policy/routing servers, subscriber feature servers and media and signaling gateways. Sonus products are supported by a global services team with experience in design, deployment and maintenance of some of the world's largest and most complex IP networks. For more information, visit www.sonus.net or call 1-855-GO-SONUS.

Important Information Regarding Forward-Looking Statements:

The information in this release may contain certain forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995 regarding future events that involve risks and uncertainties. Although Sonus believes that its expectations are based on reasonable assumptions, readers are cautioned that these forward-looking statements are only predictions and are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict. All statements other than statements of historical facts contained in this report are forward-looking statements. Our actual results may differ materially from those contemplated by the forward-looking statements. For further information regarding risks and uncertainties associated with Sonus' business, please refer to the "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Risk Factors" sections of Sonus' filings with the Securities and Exchange Commission . Any forward-looking statements represent Sonus' views only as of the date on which such statement is made, 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.

Sonus Networks, Inc.
Patti Leahy, 978-614-8440
pleahy@sonusnet.com

Source: Sonus Networks, Inc.