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程控交换机除具备一般功能外,应能提供各种优异的新服务性能,体现程控技术的优越性,使之具有较好的性能价格比。因而,开发新服务性能是研制程控交换系统必须解决的主要问题之一。本文首先对程控小交换机可能提供的新服务性能作一综合介绍,进而说明软件设计的步骤和一般原则。并以几种新服务性能为例,较详细地介绍了程序流程图和处理过程,这些新服务性能已包含在所研制的由Z80微处理机控制的小交换机的软件系统中。在这些新服务性能中,不少也能用于局用程控交换系统。
Program-controlled switches in addition to the general functions, should be able to provide a variety of excellent new service performance, embodies the advantages of program-controlled technology, so that it has a better cost performance. Therefore, the development of new service performance is one of the major problems that must be solved in developing a program-controlled switching system. This article first introduces the new service capabilities that PBX may provide to provide a comprehensive introduction, and then illustrates the steps and general principles of software design. Taking several new service performance as an example, the program flow chart and the process are introduced in detail. The new service performance is included in the software system of the developed Z80 microprocessor-controlled small switch. Among these new service capabilities, many of them can also be used in Bureaux PBX systems.