标准号:ETSI ETS 300 357-1995
中文标准名称:ETSI ETS 300 357-1995 综合业务数字网(ISDN). 忙时用户呼叫接通(CCBS)补充业务.业务描述
英文标准名称:Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) Supplementary Service Service Description
发布日期:1995-01-01
中国标准分类号:M21