在日本,乘坐东北新干线列车的旅客利用列车无线电话可以与国内的任何一台电话直接进行通话。据讲,一九八二年十一月开通的上越新干线的列车上也安装使用了这种通信设备。与此同时,东海道和山阳新干线的有线电话设备也进行了改进。沿铁路埋设的同轴电缆代替了架空明线,并可将收集到 In Japan, travelers taking the northeastern Shinkansen train use a train wireless phone to talk directly to any domestic phone. It is said that the communication equipment was installed and used on the train of the Joetsu More Shinkansen opened in November 1982. In the meantime, the telephone equipment for the Tokaido and Sanyo Shinkansen has also been improved. Coaxial cable buried along the railway instead of the overhead line, and can be collected