UPDATE -- SHAREHOLDER ALERT: Bronstein, Gewirtz & Grossman, LLC Reminds Investors of Class Action Against Ribbon Communications, ...
NEW YORK, Jan. 03, 2019 (GLOBE NEWSWIRE) -- Attorney Advertising -- Bronstein, Gewirtz & Grossman, LLC reminds investors that a class action lawsuit has been filed against Ribbon Communications, Inc. f/k/a Sonus Networks, Inc. ("Ribbon" or …