 HUNTSVILLE, Ala.--BUSINESS WIRE--ADTRAN, Inc., NASDAQ: ADTN, a leading provider of next-generation networking solutions, announced today that ADTRAN representatives will present at the Needham Virtual Security, Networking Communications Conference on November 16, 2021. ADTRAN representatives will provide an update on the company, the proposed business combination with ADVA Optical Networking and discuss industry trends that can impact the market and ADTRANs business. ADTRAN will web 