N-ISDN的建设和业务开放(下)

The Development of N ISDN and the Provision of its Service(PartⅡ)

介绍了综合业务数字网 (ISDN)及我国窄带综合业务数字网 (N - ISDN )的建设、组网及业务发展情况 ,对比了七号信令 TU P(电话用户部分 )与 ISU P(综合业务用户部分 )

This article introduces the construction,network and development of ISDN,compares the differences between TUP and ISUP of SS7,and discusses the development of N ISDN.