March 27, 2015 (Shareholders Foundation) - An investigation on behalf of investors of Sonus Networks, Inc. (NASDAQ:SONS) shares over potential securities laws violations by Sonus Networks, Inc and certain of its directors and officers in connection certain financial statements was announced.

The investigation by a law firm focuses on possible claims on behalf of purchasers of the securities of Sonus Networks, Inc. (NASDAQ:SONS) concerning whether a series of statements by Sonus Networks, regarding its business, its prospects and its operations were materially false and misleading at the time they were made.

Sonus Networks, Inc. reported that its annual Total Revenue rose from $254.13 million in 2012 to $296.33 million in 2014 and that its respective Net Loss declined from $50.17 million to $16.86 million. Shares of Sonus Networks, Inc. (NASDAQ:SONS) declined to as low as $8.26 per share on March 25, 2015.

On March 24, 2015, Sonus Networks, Inc. announced that it is updating its previous guidance and initiated a company-wide cost reduction review. Sonus Networks, Inc. lowered its previously issued guidance. Sonus Networks, Inc. said that it expects revenue to be in the range of $47 million to $50 million and non-GAAP loss per share in the range of $0.29 to $0.34 for the first quarter ending March 27, 2015 as compared to previous guidance of $74 million in revenue and non-GAAP diluted earnings of $0.03 per share. Sonus Networks, Inc. said that it also expects its revenue for the full year will be up to 25% below the midpoint of its previous annual guidance of $326 million to $330 million.