The article introduces the constituent, functions, technical characteristics and application of railway subscriber service system and discusses its tendency for development.

本文介绍了铁通客户服务系统的构成、功能、技术特点和应用情况，并对其发展趋势进行了探讨。

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Both the service provider and the subscriber access the billing system for the current usage charges.

服务提供者和订户都通过访问计费系统获知当前的使用费用。

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Establishing perfect ADSL broadband access maintenance and test management system and improving subscriber service quality have become urgent issues for carriers to popularize ADSL service.

建立完善的ADSL宽带接入维护测试与管理系统、提高用户服务质量已成为运营商在积极推广ADSL业务中迫切需要解决的问题。

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