DASAN Zhone Solutions, Inc. announced it has appointed Charlie Vogt as president and director effective August 1, 2020. Vogt joins DZS from ATX Networks, where he remains a member of the board. He succeeds Yung Kim, who has retired after a successful 40-year international telecommunications career and nearly four years at the helm of DZS. Vogt was most recently president and CEO of ATX Networks.