NTTYY - Nippon Telegraph and Telephone Corporation 2021 Q4 - Results - Earnings Call Presentation May, 12 2021 08:00 AM Nippon Telegraph & Telephone Corp ADR The following slide deck was published by Nippon Telegraph and Telephone Corporation in conjunction with their 2021 Q4 earnings call. For further details see: Nippon Telegraph and Telephone Corporation 2021 Q4 - Results - Earnings Call Presentation