IC卡公话漫游话费省内结算的实现方案

随着IC卡公话的发展，全国各省IC卡公话漫游话费结算的需求日益突出，我省在全国率先实现了IC卡公话省内漫游话费结算，本文就结合我省实际，对我省结算工作的实现方式进行了深入的分析和介绍。     

公用电话计费方式

公用电话计费手段随着电信事业的发展而发展，从最早的手动计时计费发展至今的单机计费器、集中管理计费系统、磁卡电话机、IC卡电话机计费等多种形式。多样化计费方式的形成与技术发展和人们的需求息息相关。1．公用电话计费分类（1）有人值守：①人工计时计费；②单机计费器计费（第1代，第2代）；③联网计费：集中管理型，集中计费型。（2）无人值守：①投币电话；②磁卡电话；③IC卡电话；④记帐方式（200业务）。2．有人值守计费公话发展的初期，由于缺少计费设备，基本上是电话机旁放一个钟表，用户打电话时计时，通话完毕用笔计算…     

浅谈有人值守公话集中管理系统（终端）存在的问题及其解决办法

有人值守公话是中国电信的一项传统业务,在通信市场竞争十分激烈的今天,它们仍占有一席之地。目前我省开通使用的有人值守立即计费终端大多是集中管理(系统)的,其最大优点是代办户不能随意更改计费费率,可避免代办户恶意蒙骗用户,减少投诉。同时代办户与用户发生话费争议时,公话主管部门可随时调阅其话单,查明并及时处理。然而就我省目前开通的有人值守公话集中管理系统来说在通信方式上大都存在一些问题,致使集中管理系统不能发挥出其应有的作用。一、存在的问题下面就有人值守公话集中管理系统(终端)普遍使用的两种通信方式存在的问题…     

困境中的IC卡公话业务的发展

随着移动通信的迅猛发展,人们的通信消费行为发生了较大的变化.低价移动终端的普及,移动通信资费的大幅度降低,VoIP的迅速发展使IC卡公话的消费群体急剧萎缩,IC卡公话业务进入了衰退期.如何延长IC卡公话业务的生命周期,本文从IC卡公话业务面临的困难、创新发展的措施两个方面分析了IC卡公话业务下一步的发展方向,希望对IC卡公话业务运营者有所启发.     

两种IC卡管理电话机主要功能简介

IC卡管理电话是针对电话费支出不合理,管理困难而设计的。目前我国已有许多生产厂家生产IC卡管理电话机,本文以步步高、一路升IC卡管理电话为例介绍IC卡管理电话机的主要功能和特点。     

话机新品——IC卡智能管理电话机

电话费超支一直是许多人头痛的问题。因为电话管得太死影响工作,管得不严又要枉会大笔电话费。尽管也有电话锁上市,但不是有漏洞,就是不方便。为此,这里向大家介绍一种IC卡智能管理电话机。这种IC卡智能管理电话机适合做非公用电话使用,它是在普通话机的基础上增加了单片机智能控制部分,话费的管理通过智能卡(IC卡)将话费承包到人(亦可称限费通活)来实现。该话机主要由普通电话电路和智能控制电路两大部分组     

通信展专题

天津兰吉尔佳音室内型ＩＣ卡话机 它适用于医院、大学、写字楼、公寓和商店等场所,不需要外线电源线供电。在电话上能使用多种ＩＣ卡,包括预付费卡、Ｅｕｒｏｃｈｉｐ卡、Ｔ２Ｇ卡和电子钱包卡。它能接入远程管理系统。该机有防并线盗打的功能,保证普通话机不能接入公话线,公话线路被自动监管,不需要线路保护装置。话机中的安全模块能识别ＩＣ卡真伪。捷视２０００彩色可视电话系统 它采用普通电话线,在进行可视通话时,只需支付普通话费。系统操作非常简便,主机和电话基座可分离,可选择显示对方、双方、同屏等模式。隐私模式能使对…     

IC卡付费电话系统

ＩＣ卡付费电话系统由ＩＣ电话卡、ＩＣ卡话机和ＩＣ卡付费电话管理系统组成。本文简介了ＩＣ卡定义及应用、ＩＣ卡话机功能，并着重从ＩＣ卡付费电话管理系统的系统构成、系统功能、与ＩＣ卡话机之间的通信等方面进行了介绍。阐述了ＩＣ卡付费电话系统的现状与未来。最后对我国应如何发展ＩＣ卡付费电话系统提出了几点设想。     

基于移动智能网的移动公用电话系统

传统固定IC卡公用电话在快速发展的同时 ,由于电话线路的限制 ,还有很多特殊场合是传统IC卡公用电话的空白点 ,如何真正实现公用电话成为身边的备用手机的目标和开拓新的公话市场 ,是摆在公话运营面前的一个重大课题。文章全面介绍了一种基于移动智能网的移动公用电话系统的构成 ,以及完整的呼叫处理流程     

浅谈有人值守公话集中管理系统(终端)存在的问题及其解决方法

有人值守公话是中国电信的一项传统业务,在通信市场竞争十分激烈的今天,它们仍占有一席之地.目前我省开通使用的有人值守立即计费终端大多是集中管理(系统)的,其最大优点是代办户不能随意更改计费费率,可避免代办户恶意蒙骗用户,减少投诉.     

GEMNET: a generalized, shuffle-exchange-based, regular, scalable,modular, multihop, WDM lightwave network

GEMNET is a generalization of shuffle-exchange networks and it can represent a family of network structures (including ShuffleNet and de Bruijn graph) for an arbitrary number of nodes. GEMNET employs a regular interconnection graph with highly desirable properties such as small nodal degree, simple routing, small diameter, and growth capability (viz. scalability). GEMNET can serve as a logical (virtual), packet-switched, multihop topology which can be employed for constructing the next generation of lightwave networks using wavelength-division multiplexing (WDM). Various properties of GEMNET are studied     

Thermodynamics of copper matte converting: Part III. Steady-state volatilization of Au,Ag, Pb,Zn, Ni,Se, Te,Bi, Sb,and As from slag,matte, and metallic copper

A comprehensive compilation of various thermodynamic data required for a complete analysis of copper matte converting reactions is presented. The data comprise estimated free energies of formation for such gases as SeO, SeS, TeO, TeS, BiO, BiS, SbO, SbS, AsO, and AsS, as well as activity coefficients in dilute copper alloys and vapor pressures of various elements and compounds. The volatilization of minor elements in steady-state reactors comprising gas and several condensed phases is mathematically formulated, and a parameter which governs the volatilization in such reactors is defined and named volatilization constant. The vapor pressures of various volatile species are calculated thermodynamically for the Noranda Process reactor by assuming equilibrium conditions. The volatilization constants of various minor elements are expressed explicitly as functions of oxygen and sulfur activities. Formerly Associate Professor, Department of Metallurgical Engineering, University of Utah, Salt Lake City, UT     

Bits, symbols, bauds, and bandwidth

The use of clear, concise, and unambiguous language in telecommunications engineering is vital to communicate a desired meaning and understanding. Terminology should be based on rigorous engineering principles and traceable to well known and dependable sources. This article deals with four everyday terms commonly encountered in the popular semi-technical press as well as in serious engineering periodicals. The misuse of these and other terms can lead to low-balled cost proposals, court litigation, and patent infringement cases. Imagine how an engineering student can be confused when she/he typically encounters bandwidth measured in bits per second     

Novel planar, square-shaped, dielectric-waveguide, single-, and dual-mode filters

This paper presents a novel concept of a square-shaped dielectric-waveguide resonator, which can easily realize a dielectric-waveguide cross-coupled filter or a dielectric-waveguide dual-mode filter, using the conventional printed circuit board (PCB) process. This planar dielectric-waveguide resonator has a higher Q value than a microstrip resonator. The physical mechanisms of both single- and dual-mode filters are elucidated. Some new coupling structures are developed for undergoing the PCB process. Filter design procedures are detailed. Design curves for the coupling coefficients of internal- and external-coupling structures are determined by full-wave finite-element-method electromagnetic calculations. Measurement results are highly consistent with theory for all trial filters. This study offers an effective means of producing low-cost high-performance planar circuit filters.     

PBX技术.市态.营销.选购

本文介绍了ＰＢＸ交换机的技术及市场需求态势。并提出ＰＢＸ产品的营销要素及其用户在选购时应遵循的原则。     

Dilemmas,uncertainty, risks,and board performance

This paper traces the origins of the words risk, uncertainty, governance and development and argues that a deeper understanding of each allows more effective decision taking in the boardroom. It argues that the role of the board of directors is to balance and rebalance continuously their irresolvable dilemma — ‘how do we drive our enterprise forward while keeping it under prudent control?’ It argues that it is the board’s role to focus on uncertainty, rather than risk, and this requires a different set of intellectual skills from board members to be able to cope with monitoring a range of diverse scenarios. This is crucial for a board to develop stronger ways of both leading their organisation and of ensuring the connectedness of the learning within and between the board and the operational unit’s risk taking. It advocates that to achieve this a board must develop new ways of learning — especially of thinking strategically and becoming more sensitised to the dynamics of their changing external environments. This will take them well beyond the comforts of their specialist managerial disciplines and into the true world of directing. The paper demonstrates the importance of continuous learning in reducing organisational uncertainty and risk. It uses the ‘Learning Board’ process and model as the central processor of both strategic and operational learning to create an annual rhythm for the board’s year.