Japanese behemoth Nippon Telegraph and Telephone Corporation (NTT Corp) has announced plans to introduce a flat rate for all domestic landline calls, starting in 2024. The Asahi Shimbun writes that NTT regional units NTT East and NTT West will remove long-distance call charges on all domestic fixed line calls and replace them with a flat rate of JPY8.5 (USD0.08) per three minutes at that date. It is understood the change in strategy is a reaction to the increasing difficulty and cost of maintaining an aging network that is being used by less people in a world of near ubiquitous mobile and VoIP communications. As it stands, NTT designates any call of greater than 100km as domestic long-distance (DLD) – charging JPY80 per three minutes – a levy that will fall by around 90% under the new proposal; the move will, however, see the closure of NTT’s Myline service which allows subscribers to register with rival carriers that offer low-cost DLD calls. Furthermore, NTT has announced that its regional operating units will complete a shift to an all-IP network by 2025.