随着 N- ISDN的业务发展 ,要求 N- ISDN与 PSPDN互连的呼声越来越高 ,为此 ,就江苏省内两网的现状及互连的可行性 ,三种技术方案等几方面进行论述和探讨。 With the development of the N-ISDN service, calls for the interconnection of N-ISDN and PSPDN are getting louder and louder. In this connection, the status quo of the two networks in Jiangsu Province and the feasibility of the interconnection and the three technical solutions are taken into consideration Discussion and discussion.