标准摘要
[中文适用范围]： 本国际标准规定了附加网络功能呼叫拦截（ANF-CINT），适用于专用综合业务网络（PISN）支持的各种基础业务。 ISO/IEC 11574 中规定了基本服务。 ANF-CINT 是一项附加网络功能，可以将由于某些条件而无法完成的呼叫重定向到预定义的拦截用户。 ANF 规范根据 ETS 300 387 中描述的方法分三个阶段制定。 本国际标准包含 ANF-CINT 的第 1 阶段和第 2 阶段规范。 第一阶段规范（第 6 条）指定了 PISN 用户所看到的功能。 第 2 阶段规范（第 7 条）标识了特性中涉及的功能实体以及它们之间的信息流。 [外文原描述]： ISO/IEC 15053:2003 specifies Additional Network Feature Call Interception (ANF-CINT), which is applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574. ANF-CINT is an additional network feature which enables calls that cannot be completed due to certain conditions to be redirected to a pre-defined intercepted-to user. ANF specifications are produced in three stages, according to the method described in ETS 300 387. ISO/IEC 15053:2003 contains the stage 1 and stage 2 specifications of ANF-CINT. The stage 1 specification (clause 6) specifies the feature as seen by users of PISNs. The stage 2 specification (clause 7) identifies the functional entities involved in the feature and the information flows between them.
英文名称Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Specification, functional model and information flows - Call Interception additional network feature