 PLANO, Texas, Feb. 12, 2021 GLOBE NEWSWIRE -- DZS Inc. NASDAQ: DZSI or the Company or DZS, a global leader of intelligent, packet-based mobile transport and broadband access converged edge solutions representing communications service providers and enterprise customers in more than 100 countries, will release its financial results for the fourth quarter of 2020 before the market opens on Monday, February 22, 2021 via the posting of a news release and its stockholder letter to the DZS Investor Relations website at 