信息技术.系统间远程通信和信息交换.专用综合业务网.交换信令协议.私人用户移动性(PUM).呼叫处理附加网络特性

[中文适用范围]： 本国际标准规定了在专用综合业务内连接在一起的专用综合业务网络交换机（PINX）之间的 Q 参考点处支持专用用户移动呼叫处理附加网络功能（ANF-PUMI 和 ANF-PUMO）的信令协议网络（PISN）。 ANF-PUMI 是一种将传入呼叫定向到 PISN 内的 PUM 用户的功能，无论 PUM 用户在 PISN 内的地理位置如何，前提是 PUM 用户的位置已知。 如果需要，ANF-PUMO 允许 PISN 处理来自本地 PUM 用户的呼叫请求。 Q 参考点在 ISO/IEC 11579-1 中定义。 服务规范按照 ITU-T Rec. 中规定的方法分三个阶段制定。 I.130。 该国际标准包含 Q 参考点的第 3 阶段规范，并满足 ISO/IEC 17877 中第 1 阶段和第 2 阶段规范确定的要求。 ANF-PUMI 和 ANF-PUMO 的信令协议在信令协议之上运行用于 ISO/IEC 11572 中规定的基本电路交换呼叫控制，并使用 ISO/IEC 11582 中规定的补充服务控制通用过程的某些方面。 该国际标准还规定了支持交互的附加信令协议要求在 ANF-PUMI / ANF-PUMO 和其他补充服务和 ANF 之间的 Q 参考点。 本国际标准适用于可以互连形成 PISN 的 PINX。 [外文原描述]： ISO/IEC 17878:2003 specifies the signalling protocol for the support of the Private User Mobility call handling additional network features (ANF-PUMI and ANF-PUMO) at the Q reference point between Private Integrated services Network eXchanges (PINX) connected together within a Private Integrated Services Network (PISN). ANF-PUMI is a feature that directs incoming calls to a PUM user within the PISN regardless of the PUM user's geographical location within the PISN, provided that the PUM user's location is known. ANF-PUMO permits the PISN to process call requests from a PUM user at the home location, if required. 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 ITU-T Rec. I.130. ISO/IEC 17878:2003 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 17877. The signalling protocol for ANF-PUMI and ANF-PUMO 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 17878:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between ANF-PUMI/ANF-PUMO and other supplementary services and ANFs. ISO/IEC 17878:2003 is applicable to PINXs which can interconnect to form a PISN.