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随着长途直拨业务范围的扩大 ,利用“1 1 3”长途台人工转接的话务量日趋减少 ,于是相继撤消了地区话务台 ,与异地话务台合并 ,从而引出了 YG-1型铁路专用各站 /养路电话与异地话务台相联的技术问题。为此研制生产的各站 /养路遥控放大器和各站 /养路转换器 ,解决了联网问题 ,?
With the extension of the long-distance direct dialing service, the number of handsets using “1 1 3” long-distance desks dropped gradually. As a result, the district consoles were successively canceled and merged with the remote consoles, thus leading to the YG-1 Railway dedicated stations / road maintenance telephone and remote console associated technical issues. To develop and produce for this station / road maintenance remote control amplifiers and stations / road maintenance converter to solve the networking problem?