同义词
1)integrated digital network,综合数字通信网络2)Integrated digital mobile Communication network,综合数字移动通信网络3)integratedservices digital network (ISDN),综合业务数字通信网4)network,integrated digital (IDN),综合数字网络5)N-ISDN Narrowband C Integrated Services Digital Network,窄带综合服务数字网络，"一线通"6)Mobile ISDN,移动综合业务数字网络
