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ISDN是英文Integrated Service Digital Network的缩写,它的意思是综合业务数字网,具体地说,就是将采用数字技术的各类电信业务综合起来进行传输和处理。在经历了多次发展和坎坷以后,已逐渐成熟起来,成为适用低速数据传输、同时应用语音与数据接入、因特网或企业数据网的选择技术。 一、ISDN的基本概念 ISDN是从电话的综合数字网(Integrated DigitalNetwOrk)发展起来的,在电话网上实现了数字传输和数字交换后,就是电话的综合数字网,即IDN。在电话网
ISDN is an abbreviation of English Integrated Service Digital Network. It means Integrated Services Digital Network. Specifically, ISDN integrates all types of telecommunication services using digital technologies for transmission and processing. After several development and ups and downs, it has gradually matured and become a suitable technology for low-speed data transmission, voice and data access, Internet or enterprise data network selection. First, the basic concept of ISDN ISDN is developed from the integrated digital network (Integrated Digital Network) of the telephone. After the digital transmission and digital exchange are realized on the telephone network, it is the integrated digital network of the telephone, namely IDN. On the telephone network