ISO/IEC 14844:2003
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Do Not Disturb and Do Not Disturb Override supplementary services
发布时间:2003-03-21 实施时间:


私有综合服务网络(PISN)是一种专用的通信网络,用于在企业或组织内部提供各种通信服务,如电话、传真、数据传输等。PISN通常由私有交换机、路由器、网关等设备组成,这些设备之间需要进行互换信令以实现各种通信服务。ISO/IEC 14844:2003标准规定了PISN中的勿扰和勿扰覆盖补充服务的信令协议。

勿扰和勿扰覆盖是PISN中常用的补充服务之一。勿扰服务可以让用户在某些情况下暂时关闭自己的电话,以免被打扰。勿扰覆盖服务则是在勿扰服务开启的情况下,允许某些特定的电话呼叫用户。这些服务可以提高用户的通信效率和保密性,因此在PISN中得到广泛应用。

ISO/IEC 14844:2003标准规定了勿扰和勿扰覆盖服务的信令流程。当用户需要开启勿扰服务时,需要向PISN发送一个开启勿扰服务的请求消息。PISN收到请求消息后,会向用户发送一个确认消息,表示勿扰服务已经开启。当用户需要关闭勿扰服务时,需要向PISN发送一个关闭勿扰服务的请求消息。PISN收到请求消息后,会向用户发送一个确认消息,表示勿扰服务已经关闭。当用户需要开启勿扰覆盖服务时,需要向PISN发送一个开启勿扰覆盖服务的请求消息,并指定允许呼叫的电话号码。PISN收到请求消息后,会向用户发送一个确认消息,表示勿扰覆盖服务已经开启。当用户需要关闭勿扰覆盖服务时,需要向PISN发送一个关闭勿扰覆盖服务的请求消息。PISN收到请求消息后,会向用户发送一个确认消息,表示勿扰覆盖服务已经关闭。

ISO/IEC 14844:2003标准还规定了勿扰和勿扰覆盖服务的消息格式和参数。勿扰和勿扰覆盖服务的请求消息和确认消息都包含了服务的类型、状态、呼叫方向、呼叫类型、呼叫标识等参数。这些参数可以帮助PISN正确地处理勿扰和勿扰覆盖服务的请求和确认消息。

ISO/IEC 14844:2003标准的实现可以提高PISN的通信效率和保密性,使得用户可以更加方便地使用PISN提供的各种通信服务。

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 - Call Transfer supplementary service - 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 Transfer supplementary service - 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 Transfer supplementary service - 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 Transfer supplementary service - Part 4: Test suite structure and test purposes

ISO/IEC 11579-5:1995 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Call Transfer supplementary service - Part 5: Abstract test suite