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6月25日,北京电话局ISDN服务中心和3Com公司联合举办了“ISDN技术及3Com ISDN解决方案”研讨会。这是在5月北京电话局正式向社会推出包括承载业务、用户终端业务和补充业务等ISDN服务后,首次面向用户的大型ISDN介绍活动。研讨会上,北京电话局ISDN服务中心讲解了有关资费标准、申请方式、相关业务及应用。64K ISDN的市内资费与普通电话相同,128K线路的费用是电话的2倍;在长话方面,若是用ISDN电话与普通电话通话,则费用不变,而若两端皆为ISDN电话,则会有50％至100％的费用增加。目
On June 25, ISDN Service Center of Beijing Telephone Bureau and 3Com Company jointly held the seminar of “ISDN Technology and 3Com ISDN Solution”. This is the first large-scale introduction of ISDN to users after Beijing Telephone Bureau formally introduced to society the ISDN service including bearer service, user terminal service and supplementary service in May. Seminar, Beijing Telephone Service ISDN service center to explain the tariff standards, application methods, related businesses and applications. 64K ISDN city charges the same as ordinary telephone, 128K line is twice the cost of the telephone; in the long talk, if the ISDN telephone and ordinary telephone calls, the cost remains unchanged, and if both ends are ISDN telephone, then There will be a 50% to 100% fee increase. Head