ISO/IEC 18051:2007 信息技术 系统间远程通信和信息交换 用于计算机支持的远程通信应用（CSTA）III阶段的服务

标准编号：ISO/IEC 18051:2007

中文名称：信息技术 系统间远程通信和信息交换 用于计算机支持的远程通信应用（CSTA）III阶段的服务

英文名称：Information technology — Telecommunications and information exchange between systems — Services for Computer Supported Telecommunications Applications (CSTA) Phase III

发布日期：2007-12

标准范围

ISO/IEC 18051:2007规定了计算机支持的电信应用的服务和事件报告，第三阶段（CSTA）。ISO/IEC 18051:2007专注于为交换功能、计算功能和特殊资源功能提供应用服务接口。CSTA应用接口与CSTA应用可以服务、观察或操纵的各种用户-网络接口和网络-网络接口解除关联。因为CSTA间接地与现有的电信接口一起操作，所以它一般地操作，使得各种现有接口之间的差异对CSTA应用是隐藏的。对用户到网络接口的支持超出了CSTA的范围。尽管大多数终端设备（TE）适合与CSTA一起使用，但是在某些情况下TE将不适合。例子有:当呼叫建立期间通过CSTA向双方报警时，无法调整其传输模式以防止载波冲突的传真终端和调制解调器；在交换功能的控制之外执行电信功能的功能终端。ISO/IEC 18051:2007中定义的服务允许计算网络和电信网络之间的功能集成。支持这种功能集成应用的计算平台（即应用编程接口-API）不在ISO/IEC 18051:2007的范围之内。计算和交换(即，电信)网络之间的通信可以经由从简单的点对点连接到本地或广域电信网络的中间网络发生。ISO/IEC 18051:2007是一套CSTA标准和技术报告的一部分，这些标准和技术报告全面描述了应用、实施和利用基于CSTA的计算机电话集成（CTI）应用程序所涉及的架构和实际问题。

ISO/IEC 18051:2007 specifies the Services and Event Reports for Computer-Supported Telecommunications Applications, Phase III (CSTA).ISO/IEC 18051:2007 is focused on providing application service interfaces to a Switching Function, Computing Function and a Special Resource Function. A CSTA application interface is disassociated from the various user-network interfaces and network-network interfaces CSTA applications may serve, observe or manipulate. Because CSTA operates with existing telecommunications interfaces indirectly, it operates generically, so that differences among various existing interfaces are hidden from CSTA applications. Support of user-to-network interfaces is outside the scope of CSTA.Although most terminal equipment (TE) is suitable for use with CSTA, there will be instances of TE that will not be suitable in certain circumstances. Examples are:

• FAX terminals and modems that are unable to adjust their transmission modes to prevent carrier conflict when both parties are alerted via CSTA during call establishment;
• functional terminals that perform telecommunication functions outside the control of the Switching Function.

Services defined in ISO/IEC 18051:2007 allow functional integration between a computing network and a telecommunications network. Computing platforms (i.e. application programming interfaces - APIs) that support such functionally-integrated applications are outside the scope of ISO/IEC 18051:2007.Communication between the computing and switching (i.e. telecommunications) networks may take place via intervening networks ranging from simple point-to-point connections to local- or wide-area telecommunications networks.ISO/IEC 18051:2007 is part of a suite of CSTA Standards and Technical Reports that provide a comprehensive description of the architectural and practical issues involved in applying, implementing, and utilizing CSTA-based computer telephony integration (CTI) applications.

标准预览图