标准摘要
[中文适用范围]： 本国际标准规定了附加网络功能（ANF）呼叫识别和呼叫链接（CIDL），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-CIDL 是一项附加网络功能，通过为每个新呼叫分配明确的标识符，以及作为一个选项，为转换后的和逻辑链接的呼叫分配明确的标识符，允许在整个 PISN 中识别和关联呼叫。 注 1 – 本 ANF 的开发是为了支持在网络环境（即 PISN）中使用 CSTA（ISO/IEC 18051）。 不排除将该 ANF 用于其他应用。 根据ETS 300 387中描述的方法，补充服务规范分三个阶段产生。 该国际标准包含ANF-CIDL的第一阶段和第二阶段规范。 第一阶段规范（第 6 条）指定了一般功能原则和功能。 第 2 阶段规范（第 7 条）标识了补充服务中涉及的功能实体以及它们之间的信息流。 [外文原描述]： This International Standard specifies the Additional Network Feature (ANF) Call Identification and Call Linkage (CIDL), which is applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574. ANF-CIDL is an additional network feature which allows the identification and correlation of calls throughout a PISN by assigning unambiguous identifiers to each new call and also, as an option, to transformed and logically linked calls. NOTE 1 - This ANF has been developed to support the use of CSTA (ISO/IEC 18051) in a networked environment, i.e. in a PISN. Use of this ANF for other applications is not precluded. Supplementary service specifications are produced in three stages, according to the method described in ETS 300 387. This International Standard contains the stage 1 and stage 2 specifications of ANF-CIDL. The stage 1 specification (clause 6) specifies the general feature principles and capabilities. The stage 2 specification (clause 7) identifies the Functional Entities involved in the supplementary service 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 Identification and Call Linkage Additional Network Feature