| 铁路电话网向软交换的演进方式 |
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| 引用本文： | 刘正自.铁路电话网向软交换的演进方式[J].铁道通信信号,2009,45(2):45-48. |
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| 作者姓名： | 刘正自 |
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| 作者单位： | 中铁第四勘察设计院集团有限公司,430063,武汉 |
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| 摘 要： | 电话网从SPC（程控交换机）发展到软交换是大势所趋，铁路电话网也不例外。演进过程中涉及面广，技术复杂，如何平滑、平稳地对现有SPC组成的电话网进行软交换技术升级改造，将是铁路通信建设和运维不可回避的问题，文章结合某节点更新改造实例，对铁路电话网的演进思路及步骤、注意事项、既有和新资源的充分利用以及网络融合进行了探讨。
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| 关 键 词： | 铁路 电话网 软交换 演进 多业务 |
Evolution of Railway Telephone Network to Soft-switching |
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| Liu Zhengzi.Evolution of Railway Telephone Network to Soft-switching[J].Railway Signalling & Communication,2009,45(2):45-48. |
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| Authors: | Liu Zhengzi |
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| Abstract: | It is a trend for telephone networks to evolve from SPC to soft-switching. There is no exception for railway telephone networks and its evolution involves wide ranges and complicated technologies. How to renovate the existing SPC telephone networks to upgrade to soft-switching ones smoothly and stably is an inevitable problem for the construction, operation and maintenance of railway communication systems. Combined with an example of upgrading a certain node, we discussed the solution, process, precautions, full utilization of the existing and new resources, and network convergence regarding the evolution of rail- way telephone networks. |
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| Keywords: | Railway Telephone network Soft-switching Evolution Multi - service |
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