ISO/IEC 19460:2003 信息技术-系统间通讯和信息交换-专用集成服务网络-交换信号协议-单步执行呼叫转移补充服务

标准编号：ISO/IEC 19460:2003

中文名称：信息技术-系统间通讯和信息交换-专用集成服务网络-交换信号协议-单步执行呼叫转移补充服务

英文名称：Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Single Step Call Transfer supplementar

发布日期：2003-04

标准范围

ISO/IEC 19460:2003规定了用于支持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(PINX)之间的Q参考点处的单步呼叫转移补充业务(SS-SSCT)的信令协议。SS-SSCT是一种补充业务，它使用户(用户A)能够将用户A和用户B之间的现有呼叫转换为用户B和用户C之间的新呼叫，由此用户A在呼叫转移之前不具有与用户C建立的呼叫。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。ISO/IEC 19460:2003包含Q参考点的第3阶段规范，并满足ISO/IEC 19459中第1阶段和第2阶段规范确定的要求。用于SS-SSCT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 19460:2003还规定了用于支持单步呼叫转移和其他补充业务与ANF之间在Q参考点处的交互的附加信令协议要求。ISO/IEC 19460:2003适用于可以互连以形成PISN的PINX。

ISO/IEC 19460:2003 specifies the signalling protocol for the support of the Single Step Call Transfer supplementary service (SS-SSCT) at the Q reference point between Private Integrated Network services eXchanges (PINXs) connected together within a Private Integrated Services Network (PISN).

SS-SSCT is a supplementary service which enables a user, user A, to transform an existing call between user A and user B into a new call between user B and a user C whereby user A does not have a call established with user C prior to call transfer.

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. ISO/IEC 19460:2003 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 19459.

The signalling protocol for SS-SSCT 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 19460:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between Single Step Call Transfer and other supplementary services and ANFs.

ISO/IEC 19460:2003 is applicable to PINXs which can interconnect to form a PISN.

标准预览图