I summarize theory of PHS running and technology of PHS adopting, expatiate work of PHS network optimized from three primary aspect of network?
简要介绍“小灵通”工作原理和采用的技术，从网络的主要三个方面阐述小灵通的网络优化工作。
With the popularity of PHS and the applications of additional service such as message, the location service of PHS will be another new one in the wireless data additional service.
随着PHS无线市话业务的普及，继短消息服务等附加业务后，PHS无线市话定位业务将成为无线数据增值业务的一个新亮点。
Basing on the local charging and accounting system, PHS real-time charging and accounting system which is suitable to the accounting, charging and settlement of PHS is developed.
小灵通实时计费帐务系统是为了适应小灵通业务计费、收费、结算的要求在本地计费帐系统基础上开发的应用系统。
RAS is a network access server based on PHS and locates between PSTN and IP network. It realizes the functions of data communication with PHS.
RAS是基于PHS系统的网络接入服务器，位于PSTN网和IP网之间，它实现了使用PHS进行数据通信的功能。
At present, more than 10 countries and regions offer PHS service in the whole world, advanced technology and remarkable concept of PHS have already been accepted extensively.
目前，全世界有10多个国家和地区提供PHS服务，PHS的技术和概念已经被广泛接受。
Yet with the increasingly fierce competition, the fee of telecommunications was plummeting, so the advantages of PHS generally disappear and the PHS market was smaller.
但随着竞争的不断加剧，资费持续下降，削弱了小灵通的资费优势，也不断打压了小灵通市场空间。
There are many PHS manufactures in the market who use different accesses technology, network exchange link parameters. It's very difficult to make PHS inter-communicate in the technology field.
市场上生产小灵通的厂商很多，各自采用的接入技术、网络交换、接口参数等互不相同，要实现PHS的互通具有一定的技术难度。
There are many PHS manufactures in the market who use different accesses technology, network exchange link parameters. It's very difficult to make PHS inter-communicate in the technology field.
市场上生产小灵通的厂商很多，各自采用的接入技术、网络交换、接口参数等互不相同，要实现PHS的互通具有一定的技术难度。
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