ISO/IEC 14844:2003 信息技术,电信和系统间的信息交换,专业综合服务网络,互换信号发送协议,非干扰和非干扰超控追加服务

标准编号：ISO/IEC 14844:2003

中文名称：信息技术,电信和系统间的信息交换,专业综合服务网络,互换信号发送协议,非干扰和非干扰超控追加服务

英文名称：Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Do Not Disturb and Do Not Disturb Over

发布日期：2003-04

标准范围

ISO/IEC 14844:2003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参考点处支持不干扰和不干扰覆盖补充业务(SS-DND和SS-DNDO)的信令协议。SS-DND是一种补充业务，它使被服务用户能够使PISN拒绝任何寻址到被服务用户的PISN号码的呼叫，或仅拒绝与指定的基本业务相关联的呼叫。给主叫用户一个指示。只要服务处于活动状态，来电就会被拒绝。SS-DNDO是一种补充服务，它使被服务用户能够覆盖被叫号码的SS-DND；也就是说，允许呼叫继续进行，就好像被叫用户没有激活SS-DND.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 14844:2003包含Q参考点的第3阶段规范，并满足ISO/IEC 14842中第1阶段和第2阶段规范确定的要求。用于SS-DND(O)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操作，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程序的某些方面。ISO/IEC 14844:2003还规定了用于支持在Q参考点处SS-DND和其他补充业务与ANF之间以及SS-DNDO和其他补充业务与ANF之间的交互的附加信令协议要求。

ISO/IEC 14844:2003 specifies the signalling protocol for the support of the Do Not Disturb and Do Not Disturb Override supplementary services (SS-DND and SS-DNDO) at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within a Private Integrated Services Network (PISN).

SS-DND is a supplementary service which enables a served user to cause the PISN to reject any calls, or just those associated with a specified basic service, addressed to the served user's PISN number. The calling user is given an indication. Incoming calls are rejected as long as the service is active. The served user's outgoing service is unaffected.

SS-DNDO is a supplementary service which enables a served user to override SS-DND at a called number; that is, to allow the call to proceed as if the called user had not activated SS-DND.

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 14844:2003 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 14842.

The signalling protocols for SS-DND(O) operate on top of the signalling protocol for basic circuit switched call control, as specified in ISO/IEC 11572, and use certain aspects of the generic procedures for the control of supplementary services specified in ISO/IEC 11582.

ISO/IEC 14844:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between SS-DND and other supplementary services and ANFs and between SS-DNDO and other supplementary services and ANFs.

标准预览图