ISO/IEC 15051:2003 信息技术 系统间的无线电通信和信息交换 专用集成服务网络 规范,功能模数和信息流 重复呼叫辅助装置.

标准编号：ISO/IEC 15051:2003

中文名称：信息技术 系统间的无线电通信和信息交换 专用集成服务网络 规范,功能模数和信息流 重复呼叫辅助装置.

英文名称：Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Recall supplementar

发布日期：2003-04

标准范围

ISO/IEC 15051:2003规定了补充业务召回（SS-RE），适用于专用综合业务网络（PISN）支持的各种基本业务。在ISO/IEC 11574中规定了基本服务。SS-RE是一种补充服务，如果呼叫未被应答，它提供由被服务用户转移的呼叫重定向回被服务用户。SS-RE仅适用于通过join传输后，不适用于通过重新路由传输后。根据ETS 300 387中描述的方法，服务规范分三个阶段产生。ISO/IEC 15051:2003包含SS-RE的阶段1和阶段2规范。第1阶段规范（第6条）规定了PISN用户所看到的补充服务。第2阶段规范（条款7）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。

ISO/IEC 15051:2003 specifies supplementary service Recall (SS-RE), which is applicable to various basic services supported by Private Integrated Services Networks (PISN). Basic services are specified in ISO/IEC 11574.

SS-RE is a supplementary service which provides for the redirection of a call transferred by the served user back to the served user if the call is unanswered. SS-RE is only applicable after transfer by join, not after transfer by rerouteing.

Service specifications are produced in three stages, according to the method described in ETS 300 387. ISO/IEC 15051:2003 contains the stage 1 and stage 2 specifications of SS-RE. The stage 1 specification (clause 6) specifies the supplementary service as seen by users of PISNs. The stage 2 specification (clause 7) identifies the functional entities involved in the supplementary service and the information flows between them.

标准预览图