15 November 2018
Wolf Haldenstein Adler Freeman & Herz LLP announces that a federal securities class action class action lawsuit has been filed in the United States District Court for the District of Massachusetts against that a class action lawsuit has been filed against Ribbon Communications, Inc. (f/k/a Sonus Networks, Inc.) (“Ribbon” or the “Company”) (NASDAQ: RBBN) and certain of its officers, on behalf of shareholders who purchased or otherwise acquired Ribbon securities between January 8, 2015 through March 24, 2015, inclusive (the “Class Period”).