The system constructed a family security service platform based on present fixed phone network and PRI Signaling.
本系统利用现有的固定电话网络，基于PRI信令构建了一个关于家庭安防业务的服务平台。
The system constructed a family security service platform based on present fixed phone network and PRI Signaling.
本系统利用现有的固定电话网络，基于PRI信令构建了一个关于家庭安防业务的服务平台。
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