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ITU-T Q.731.4 (04/2019)

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使用7号信令系统的号码识别辅助业务的第3阶段描述 – 呼叫线路识别限制
ITU-T Q.731.4建议书为主叫线路识别限制提供了信令程序(CLIR)。该建议书规定了CLIR的服务描述、编码要求和操作要求。建议书还介绍了始发本地交换、中转交换、国际网关交换和目的地本地交换的信令要求。建议书还包括与其他补充服务的交互、与其他网络的交互以及动态描述。
Citation: https://handle.itu.int/11.1002/1000/13879
Series title: Q series: Switching and signalling, and associated measurements and tests
  Q.700-Q.799: Specifications of Signalling System No. 7
  Q.730-Q.739: ISDN supplementary services
Approval date: 2019-04-29
Approval process:AAP
Status: In force
Maintenance responsibility: ITU-T Study Group 11
Further details: Patent statement(s)
Development history