ISO/IEC 13873:2003 信息技术-系统间通讯和信息交换-专业综合服务网络-互换信号发送协议-呼叫转移辅助服务

标准编号：ISO/IEC 13873:2003

中文名称：信息技术-系统间通讯和信息交换-专业综合服务网络-互换信号发送协议-呼叫转移辅助服务

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

发布日期：2003-04

标准范围

ISO/IEC 13873:2003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(PINX)之间的Q参考点处支持呼叫转移补充业务(SS-DIV)的信令协议。呼叫转移补充业务是呼叫转移无条件(SS-CFU)、呼叫转移忙(SS-CFB)、呼叫转移无应答(SS-CFNR)和呼叫转移(SS-CD)。SS-CFU、SS-CFB、SS-CFNR和SS-CD是允许被服务用户使PISN将寻址到被服务用户的PISN号码的所有或特定传入呼叫发送到另一号码的补充业务。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 13873:2003包含Q参考点的第3阶段规范，并满足ISO/IEC 13872中第1阶段和第2阶段规范确定的要求。用于SS-DIV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程序的某些方面。ISO/IEC 13873:2003还规定了用于支持在Q参考点处SS-DIV与其他补充业务和ANF之间的交互的附加信令协议要求。ISO/IEC 13873:2003适用于可以互连以形成PISN的PINX。

ISO/IEC 13873:2003 specifies the signalling protocol for the support of Call Diversion supplementary services (SS-DIV) at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within a Private Integrated Services Network (PISN). The Call Diversion supplementary services are Call Forwarding Unconditional (SS-CFU), Call Forwarding Busy (SS-CFB), Call Forwarding No Reply (SS-CFNR) and Call Deflection (SS-CD).

SS-CFU, SS-CFB, SS-CFNR and SS-CD are supplementary services which permit a served user to have the PISN send all or specific incoming calls addressed to the served user's PISN number to another number.

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 13873:2003 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 13872.

The signalling protocol for SS-DIV 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 13873:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between SS-DIV and other supplementary services and ANFs.

ISO/IEC 13873:2003 is applicable to PINXs which can be interconnected to form a PISN.

标准预览图