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和许多其它国家一样,意大利正在进行电信网的数字化,并且已经完成了数字传输的有效普及。数字交换已在汇接级和本地级采用,目前有大约450部交换机在工作。分组交换和电路交换数据网已投入使用,目前正在引入CCITT No.7信令.在这样的网络背景下,意大利已经规划的朝ISDN发展计划将包括:1986年准备64kb/s数字连接,两年后开始提供试验性的ISDN业务。本文讨论这些业务的主要性能综合介绍一下ISDN研究方面的进一步发展。
As in many other countries, Italy is digitizing the telecommunications network and has completed the effective diffusion of digital transmissions. Digital switching has been adopted at the tandem level and at the local level, with about 450 switches currently in operation. Packet-switched and circuit-switched data networks are in use and CCITT No.7 signaling is currently being introduced In the context of such a network, the planned DP-ISDN development in Italy will include a 64kb / s digital connection in 1986 and a two-year After the trial to provide experimental ISDN business. This article discusses the main performance of these services a comprehensive overview of ISDN research further development.