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信息技术 系统间的电信和信息交换 专用综合服务网络 电路模式多速率承载服务 服务描述、功能能力和信息流

Information Technology - Telecommunications and Information Exchange between Systems - Private Integrated Services Network - Circuit-Mode Multi-Rate Bearer Services - Service Description, Functional Capabilities and Information Flows

信息技术 系统间的电信和信息交换 专用综合服务网络 规范、功能模型和信息流 收费补充服务的通知

Information Technology - Telecommunications and Information Exchange between Systems - Private Integrated Services Network - Specification, Functional Model and Information Flows - Advice of Charge Supplementary Services

信息技术 系统间远程通信和信息交换 专用综合业务网 电路方式多速率承载服务 服务描述、功能能力和信息流

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Circuit-mode multi-rate bearer services - Service description, functional capabilities and information flows

信息技术.系统间远程通信和信息交换.专用综合业务网.交换间信令协议.路由限制类附加网络特性

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Route Restriction Class additional network feature

信息技术.系统间远程通信和信息交换.专用综合业务网.规范、功能模型和信息流.标识辅助服务

Information technology - Telecommunications and information exchange between systems - Private integrated services network - Specification, functional model and information flows - Identification supplementary services

信息技术 系统间远程通信和信息交换 专用综合业务网 规范、功能模型和信息流 呼叫提供者辅助服务

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call offer supplementary service

信息技术 系统间远程通信和信息交换 专用综合业务网 规范、功能模型和信息流 无干扰和无干扰补偿辅助服务

Information technology - Telecommunications and information exchange between systems - Private integrated services network - Specification, functional model and information flows - Do not disturb and do not disturb override supplementary services

信息技术.系统间的远程通信与信息交换.专用综合业务网(PISN).规范、功能模型和信息流.呼叫占用补充业务

Information technology - Telecommunications and information exchange between systems - Private integrated services network - Specification, functional model and information flows - Call intrusion supplementary service

信息技术 系统间远程通信和信息交换 专用综合业务网 规范、功能模型和信息流 支付辅助服务的建议

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Advice of charge supplementary services

信息技术 系统间通信和信息交换 个人综合业务网 规范、功能模型和信息流 呼叫识别和呼叫连接补充网络特征

Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network; Specification, functional model and information flows; Call Identification and Call Linkage Additional Network Feature