Information technology Telecommunications and information exchange between systems Corporate Telecommunication Networks Signalling interworking between QSIG and H.323 Call completion supplementary services ISO/IEC 21991:2002
标准号:CSA ISO/IEC 21991-04-CAN/CSA-2004
标准名称: 信息技术 — 系统间电信和信息交换 —总体电信网络在QSIG 和H.323间信令互通—呼叫接通补充业务,ISO/IEC 21991:2002
英文名称:Information technology Telecommunications and information exchange between systems Corporate Telecommunication Networks Signalling interworking between QSIG and H.323 Call completion supplementary services ISO/IEC 21991:2002
标准类型:国外标准
标准状态:现行
中国标准分类号(CCS):L78