# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Cellular Back-Up | 蜂窝备用通讯

The use of stationary cellular telephone equipment to replace or supplement other means of alarm signal communication between the alarm system and the monitoring facility.

 

使用固定的蜂窝电话设备替换或补充报警系统和监视设施之间的报警信号的通信方式。

 

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