ISO/IEC 15052:2003 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 内部交换信号协议 重复呼叫辅助装置.

标准编号：ISO/IEC 15052:2003

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 内部交换信号协议 重复呼叫辅助装置.

英文名称：Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Recall supplementary service

发布日期：2003-04

标准范围

ISO/IEC 15052:2003规定了在专用综合业务网络(PISN)内连接在一起的专用综合业务网络交换机(PINXs)之间的Q参考点处支持回叫补充业务(SS-RE)的信令协议。SS-RE是一种补充业务，它提供在呼叫未被应答的情况下将转移的呼叫重定向回被服务的用户。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。Q参考点在ISO/IEC 11579-1中定义。根据ETS 300 387中规定的方法，分三个阶段制定服务规范。本国际标准包含Q参考点的阶段3规范，并满足ISO/IEC 15051中阶段1和阶段2规范确定的要求。用于SS-RE的信令协议在用于基本电路交换呼叫控制的信令协议之上运行，如在ISO/IEC 11572中所规定的，并且使用用于控制在ISO/IEC 11582中所规定的补充业务的通用过程的某些方面。ISO/IEC 15052:2003还规定了用于支持SS-RE和其它补充业务与ANF之间的Q参考点处的交互的附加信令协议要求。然而，与呼叫转移补充服务的交互被指定为SS-RE信令程序的一部分，因为它是召回补充服务的基本方面。注:对Q参考点处的信令协议没有影响的其他交互可以在相关的第1阶段规范中找到。ISO/IEC 15052:2003适用于可以互连形成PISN的PINX。

ISO/IEC 15052:2003 specifies the signalling protocol for the support of Recall supplementary service (SS-RE) at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within Private Integrated Services Network (PISN).

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

The Q reference point is defined in ISO/IEC 11579-1.

Service specifications are produced in three stages and according to the method specified in ETS 300 387. This International Standard contains the stage 3 specification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISO/IEC 15051.

The signalling protocol for SS-RE operates on top of the signalling protocol for basic circuit switched call control, as specified in ISO/IEC 11572, and uses certain aspects of the generic procedures for the control of supplementary services specified in ISO/IEC 11582.

ISO/IEC 15052:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between SS-RE and other supplementary services and ANFs. However, the interaction with the Call Transfer supplementary service is specified as part of SS-RE signalling procedures as it is the essential aspect of the Recall supplementary service.

NOTE Additional interactions that have no impact on the signalling protocol at the Q reference point can be found in the relevant stage 1 specifications.

ISO/IEC 15052:2003 is applicable to PINXs which can be interconnected to form a PISN.

标准预览图