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据介绍,我国的铁路通信已有120多年的发展历史,长途电话、载波电话、自动电话都是铁路通信率先使用的。目前,铁路通信传输网除拉萨、海口外,基本形成覆盖全国主要大中城市的全国性长途通信网。铁路通信网拥有通信线路12万铁路公里,长途通信线路6.6万铁路公里,干线光缆通信线路4.2万铁路公里,数字微波4593铁路公里。
According to reports, China’s railway communications has 120 years of development history, long distance calls, carrier phones, automatic telephone are the first to use railway communications. At present, except for Lhasa and Haikou, the railway communication transmission network basically forms a national long-distance communication network covering major cities in China. The railway communication network owns 120,000 railway lines, 66,000 railway kilometers of long-distance communication lines, 42,000 railway kilometers of trunk optical fiber communication lines and 4593 railway kilometers of digital microwaves.