摘要
ISDN风风雨雨走了20多年,但它的市场应用却不尽人意.德国是ISDN业务应用最广的国家,ISDN在欧洲的发展比在美国要好一些.但是随着Internet的兴起,ISDN获得了新的发展机遇,它是目前真正可广泛实用的一种较高速的远程接入方式.另一种是56K modem.此外,美国ISDN制造商协会(VIA)提出的AO/DI也为ISDN注入了新的活力,它使用户可以一直保持与Internet网的低速连接/在需要的时候才增加B信道,降低了线路使用费,而且也为电信运营公司带来充分利用交换机资源和减轻网络拥塞等好处.总的看来如果把握好时机,并从价格上给予支持,未来ISDN还是会有很大发展空间的.
This paper analyzes the development trends of ISDN. With the rising of Internet, ISDN obtains its new opportunity as a practical high-speed remote access method. Besides that, AO/DI (always on/dynamic ISDN) proposed by the American Vendors' ISDN Association (VIA) also injects new life into ISDN. It allows the user to keep low-speed connection with Internet and B channels are added only when they are needed, thus lowering the line use fee and allowing the telecom operators to make good use of the switch resources and decrease network congestion. In general, if we seize the right time and give our support on price, there will be large space for ISDN to progress.
出处
《现代电信科技》
1999年第1期24-28,共5页
Modern Science & Technology of Telecommunications
