ISO/IEC 13872:2003
Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Specification, functional model and information flows -- Call Diversion supplementary services
发布时间：2003-03-21 实施时间：


私有综合服务网络（PISN）是一种基于数字传输技术的通信网络，它可以提供多种通信服务，如语音、数据、图像等。PISN通常由一组私有交换机和其他通信设备组成，这些设备可以通过专用线路或公共网络进行连接。PISN的主要优点是可以提供高质量的通信服务，并且可以根据用户的需求进行定制。

ISO/IEC 13872:2003标准规定了PISN中的呼叫转移补充服务的功能模型和信息流。呼叫转移是一种通信服务，它可以将来电转移到用户指定的另一个号码，以便用户可以在不同的位置或设备上接听来电。呼叫转移补充服务是一种可选的服务，用户可以根据自己的需求选择是否开通。

ISO/IEC 13872:2003标准规定了呼叫转移补充服务的功能模型，包括呼叫转移的类型、呼叫转移的条件、呼叫转移的目的地等。此外，该标准还规定了呼叫转移补充服务的信息流，包括呼叫转移请求、呼叫转移确认、呼叫转移取消等。

ISO/IEC 13872:2003标准的实施可以提高PISN的通信效率和可靠性，同时也可以提供更多的通信服务选择。该标准适用于各种类型的PISN，包括企业内部通信网络、公共交换电话网络等。

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 -- Call-related supplementary services -- 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 -- Call-related supplementary services -- 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 -- Call-related supplementary services -- Part 3: 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 -- Call-related supplementary services -- Part 4: Protocol implementation extra information for testing (PIXIT) for the support of intelligent network capability set 1 (INCS1)
- ISO/IEC 11579-5:1995 Information technology -- Telecommunications and information exchange between systems -- Private Integrated Services Network -- Inter-exchange signalling protocol -- Call-related supplementary services -- Part 5: Protocol implementation extra information for testing (PIXIT) for the support of intelligent network capability set 2 (INCS2)