ISO/IEC 13869:2003
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call Transfer supplementary service
发布时间:2003-03-21 实施时间:


私有综合服务网络(PISN)是一种专门为企业或组织内部通信而设计的网络。PISN可以提供多种语音和数据通信服务,如呼叫保持、呼叫等待、呼叫转移、会议呼叫等。呼叫转移是PISN中的一项重要功能,它可以将正在进行的呼叫从一个终端转移到另一个终端,以便用户在不同的终端上接听呼叫。

为了确保不同厂家的PISN设备之间可以互相通信,需要制定一套互换信令协议。ISO/IEC 13869:2003标准就是这样一套协议,它规定了呼叫转移补充服务的功能、消息格式、消息交换过程和错误处理等方面的内容。

ISO/IEC 13869:2003标准中定义了两种呼叫转移补充服务:用户呼叫转移和网络呼叫转移。用户呼叫转移是由用户自己发起的呼叫转移,而网络呼叫转移是由PISN网络自动发起的呼叫转移。用户呼叫转移可以分为三种类型:无条件呼叫转移、有条件呼叫转移和无应答呼叫转移。无条件呼叫转移是指无论被叫方是否应答,呼叫都会被转移;有条件呼叫转移是指只有满足一定条件(如被叫方忙、无应答等)时才会进行呼叫转移;无应答呼叫转移是指只有被叫方未应答时才会进行呼叫转移。

ISO/IEC 13869:2003标准中定义了多个消息类型,包括呼叫转移请求、呼叫转移确认、呼叫转移完成、呼叫转移挂机等。这些消息类型都有特定的消息格式和消息交换过程,以确保不同厂家的PISN设备之间可以正确地解析和处理这些消息。

此外,ISO/IEC 13869:2003标准还规定了错误处理的方法。如果在呼叫转移过程中发生错误,PISN设备需要向对方发送错误消息,以便对方可以及时处理错误。

总之,ISO/IEC 13869:2003标准是PISN中呼叫转移补充服务的重要规范,它确保了不同厂家的PISN设备之间可以互相通信,为企业或组织内部通信提供了更加便捷和高效的服务。

相关标准
- ISO/IEC 11579-1:1995 Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Part 1: Protocol specification
- ISO/IEC 11579-2:1995 Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Part 2: Protocol implementation conformance statement (PICS) proforma
- ISO/IEC 11579-3:1995 Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Part 3: Abstract test suite (ATS) and protocol implementation extra information for testing (PIXIT)
- ISO/IEC 11579-4:1995 Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Part 4: Protocol Implementation eXtra Information for Testing (PIXIT) for the QSIG basic call control supplementary services
- ISO/IEC 11579-5:1995 Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Part 5: Protocol Implementation eXtra Information for Testing (PIXIT) for the QSIG supplementary services