Integrated Services Digital Network (ISDN); Application of the ISDN User Part (ISUP) of CCITT Signalling System No. 7 for International ISDN Interconnections (ISUP Version 1)
标准号:ETSI ETS 300 121-1992
标准名称: 综合业务数字网(ISDN).国际ISDN互连用CCITT 7号信令系统的ISDN用户部分(ISUP)的应用(ISUP版本1)
英文名称:Integrated Services Digital Network (ISDN); Application of the ISDN User Part (ISUP) of CCITT Signalling System No. 7 for International ISDN Interconnections (ISUP Version 1)
标准类型:国外标准
标准状态:现行
中国标准分类号(CCS):M12