Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) Version 2 for the International Interface; Part 18: Completion of Calls to Busy Subscriber (CCBS) Supplementary Service
标准号:ETSI ETS 300 356- 18-1995
标准名称: 综合业务数字网(ISDN).7号信令系统.用于国际接口的综合业务数字网用户部分(ISUP).第2版.第18部分:忙时用户呼叫接通(CCBS)补充业务
英文名称:Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) Version 2 for the International Interface; Part 18: Completion of Calls to Busy Subscriber (CCBS) Supplementary Service
标准类型:国外标准
标准状态:现行
中国标准分类号(CCS):M12