Sonus Networks, Inc. (d/b/a Ribbon Communications) (Nasdaq: SONS) to Ring The Nasdaq Stock Market Closing Bell

ADVISORY, Nov. 28, 2017 --

What: 
Sonus Networks, Inc. (d/b/a Ribbon Communications) (Nasdaq:SONS), a company with two decades of leadership in real-time communications, will visit the Nasdaq MarketSite in Times Square.

In honor of the occasion, Raymond Dolan, Chief Executive Officer, will ring the Closing Bell. 

In connection with Sonus Networks, Inc.’s corporate name change to “Ribbon Communications Inc.,” the ticker symbol of the company’s common stock on the NASDAQ Global Select Market will change to “RBBN” effective upon the commencement of trading on Wednesday, November 29, 2017.

Where:
Nasdaq MarketSite – 4 Times Square – 43^rd & Broadway – Broadcast Studio

When:
Wednesday, November 29, 2017 – 3:45 p.m. to 4:00 p.m. ET     

Ribbon Communications Contact:

Media Relations
Bita Milanian
310-210-3582
[email protected]

Investor Relations
Sara Leggat
+1 (978) 614-8841
[email protected]            

Nasdaq MarketSite Media Contact:
Emily Pan
(646) 441-5120
[email protected]

Feed Information:
Fiber Line (Encompass Waterfront): 4463

Gal 3C/06C 95.05 degrees West
18 mhz Lower
DL 3811 Vertical
FEC 3/4
SR 13.235
DR 18.295411
MOD 4:2:0
DVBS QPSK

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Webcast:
A live stream of the Nasdaq Closing Bell will be available at:
https://new.livestream.com/nasdaq/live or http://www.nasdaq.com/about/marketsitetowervideo.asx

Photos:
To obtain a hi-resolution photograph of the Market Close, please go to http://business.nasdaq.com/discover/market-bell-ceremonies and click on the market close of your choice.

About Ribbon Communications
Sonus Networks, Inc. (d/b/a Ribbon Communications) is a company with two decades of leadership in real-time communications. Built on world class technology and intellectual property, the company delivers intelligent, secure, embedded real-time communications for today’s world. The company transforms fixed, mobile and enterprise networks from legacy environments to secure IP and cloud-based architectures, enabling highly productive communications for consumers and businesses. With 64 locations in 27 countries around the globe, the company’s innovative, market-leading portfolio empowers service providers and enterprises with rapid service creation in a fully virtualized environment. The company’s Kandy Communications Platform as a Service (CPaaS) delivers a comprehensive set of advanced embedded communications capabilities that enables this transformation. To learn more, visit ribboncommunications.com.

Sonus Networks, Inc. is currently registered to do business as Ribbon Communications in various jurisdictions but is formally changing its legal name to Ribbon Communications Inc., effective as of 5:00 p.m. Eastern Time, today, November 28, 2017.  In connection with the corporate name change, the ticker symbol of the company’s common stock on the NASDAQ Global Select Market will change to “RBBN” effective upon the commencement of trading on Wednesday, November 29, 2017.

About Nasdaq:
Nasdaq (Nasdaq:NDAQ) is a leading global provider of trading, clearing, exchange technology, listing, information and public company services. Through its diverse portfolio of solutions, Nasdaq enables customers to plan, optimize and execute their business vision with confidence, using proven technologies that provide transparency and insight for navigating today's global capital markets. As the creator of the world's first electronic stock market, its technology powers more than 90 marketplaces in 50 countries, and 1 in 10 of the world's securities transactions. Nasdaq is home to approximately 3,900 total listings with a market value of approximately $12 trillion. To learn more, visit: http://business.nasdaq.com  

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