Sonus Networks Announces Participation in Upcoming Financial Conferences

WESTFORD, Mass., Nov. 9 /PRNewswire-FirstCall/ -- Sonus Networks, Inc. (Nasdaq: SONS), providing network transformation through IP communications technology, announced today that Company executives will participate in the following upcoming events with the financial community:

    Second Annual Needham Broadband TechDay
    Date:         Thursday, November 12, 2009
    Time:         8:45 a.m. ET
    Location:     New York, NY
    Speakers:     Richard Nottenburg, President & Chief Executive Officer, and
                  Richard Gaynor, Chief Financial Officer.

    Credit Suisse Annual Technology Conference 2009
    Date:         Thursday, December 3, 2009
    Time:         10:00 a.m. ET
    Location:     Scottsdale, AZ
    Speakers:     Richard Gaynor, Chief Financial Officer, and
                  Shailin Sehgal, Vice President, Marketing & Product
                  Management.

Instructions on how to access a webcast of the presentations will be available on the Investor Relations section of the Sonus Networks website at www.sonusnet.com.

About Sonus Networks
Sonus Networks Inc., providing network transformation through IP communications technology, is leading the evolution of communications networks to support the multi-device demands of today's digital lifestyle. Sonus solutions and services enable fixed, mobile and cable operators to gain network awareness and new multi-media capabilities essential to retaining and expanding their subscriber base. Through standards based interoperable solutions and services, Sonus extends the investments made in traditional networks by enabling operators to seamlessly migrate to next generation technology and deliver the secure, reliable, scalable and cost-effective network needed to grow their business. For more information visit www.sonusnet.com.

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. For a discussion of the risks and uncertainties which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in our Annual Report on Form 10-K for the fiscal year ended December 31, 2008 and Quarterly Reports on Form 10-Q for the quarters ended March 31, 2009, June 30, 2009 and September 30, 2009. Any forward-looking statements represent Sonus's views only as of today and should not be relied upon as representing Sonus's views as of any subsequent date. While Sonus may elect to update or revise 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.

    For more information, please contact:

    Lucy Millington                    Beth Panfil
    Sonus Networks                     Sonus Networks
    978-614-8240                       978-614-8034
    lmillington@sonusnet.com           bpanfil@sonusnet.com