私有综合服务网络(PISN)是一种专用的通信网络,用于在组织内部提供各种通信服务。PISN可以提供语音、数据和视频通信服务,以及其他高级功能,如呼叫转移、呼叫等待和呼叫保持等。PISN可以通过有线或无线方式连接到终端设备,如电话、传真机、计算机和移动设备等。
ISO/IEC 15430:1999标准规定了PISN的功能模型和信息流,并提供了一些额外的网络功能,以支持无线终端的呼叫处理。这些额外的网络功能包括:
1. 呼叫等待:当用户正在通话时,如果有另一个呼叫进来,PISN可以通知用户有另一个呼叫,并让用户选择是否接听。
2. 呼叫转移:当用户无法接听呼叫时,PISN可以将呼叫转移到另一个终端设备或另一个用户。
3. 呼叫保持:当用户需要暂时中断通话时,PISN可以将通话保持在一个状态,直到用户再次恢复通话。
4. 呼叫拒绝:当用户不想接听呼叫时,PISN可以拒绝呼叫并通知呼叫方。
5. 呼叫转接:当用户需要将通话转移到另一个用户时,PISN可以将通话转移到另一个用户。
6. 呼叫等待取消:当用户不想接听等待中的呼叫时,PISN可以取消等待呼叫。
7. 呼叫转移取消:当用户不想将呼叫转移到另一个终端设备或另一个用户时,PISN可以取消呼叫转移。
8. 呼叫保持取消:当用户想恢复通话时,PISN可以取消通话保持状态。
除了这些额外的网络功能外,ISO/IEC 15430:1999标准还规定了PISN的功能模型和信息流。该标准定义了PISN的各种功能,如呼叫控制、呼叫管理、用户身份验证和安全性等。此外,该标准还规定了PISN的信息流,包括呼叫请求、呼叫确认、呼叫振铃、呼叫接听和呼叫结束等。
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 (INC1)
- 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 (INC2)