Abstract: This paper introduces the design and implementation of the ISDN communication subsystem of a tri-level multimedia surveillance system. The ISDN subsystem is based on the standard programming interface Common-ISDN-API to realize the support for various ISDN devices. After introducing the character and structure of CAPI, this paper discusses the method of software implementation of multi B-channels. Besides, the components and architecture of the ISDN communication system are also presented.

摘要： 介绍了一个三级多媒体监控系统中ISDN通信子系统的设计和实现。该系统采用了标准接口Common-ISDN-API实现对ISDN通信设备支持。该文在讨论了CAPI的特点及其结构后，分析了如何利用软件实现ISDN多B信道连接的技术，并给出了利用该结构实现的ISDN通信子系统的组成和系统架构。

关键词: 监控系统, Common-ISDN-API, CAPI, 综合业务数字网, MP

CLC Number: 

• TN915.14