TOKYO, Mar 7, 2025 – (JCN Newswire) – Japan’s eight telecommunications companies — Nippon Telegraph and Telephone Corporation, NTT East, NTT West, NTT DOCOMO and NTT Communications (the NTT Group), KDDI Corporation, SoftBank Corp. and Rakuten Mobile — conducted on-site training for the joint use of marine vessels from March 4 to 7…
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