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综合业务数字网(ISDN)是电信网络的先进技术,它是通过网络为用户提供包括数据、话音、图像和传真等各类业务的技术手段.无论从网络建设和运营的角度看,还是从用户利益出发,使用ISDN都具有较好的经济效益.建设N-ISDN网,最终实现B-ISDN是现有通信网向综合化、智能化发展的必然趋势.
Integrated Services Digital Network (ISDN) is an advanced technology in telecom network, which provides users with various technical means including various services such as data, voice, image and fax, etc. From the perspective of network construction and operation, Interests, using ISDN have good economic benefits.N-ISDN network construction, the final realization of B-ISDN is the inevitable trend of the development of integrated and intelligent communications network.