Exhibit 99.1 UTStarcom Reports Unaudited Financial Results for Second Half and Full Year 2022 Hangzhou, March 24, 2023— UTStarcom ("UT," "UTStarcom" or the "Company") (NASDAQ: UTSI), a global telecommunications infrastructure provider, today reported its unaudited financial results for the six months and full year ended December 31, 2022, and provided a business update. Business Update • Progress in Collaboration with China Unicom Research Institute on Development of 5G Transport Network Solution. Following ...