This works because each Bluetooth radio chip has a unique identifying code that can be used to look up a person's information.
这之所以能运作，因为每一个蓝牙无线电芯片都拥有奇特的识别代码，而这些代码能被用于查找一个人信息。
ISUP messages carry both call control and bearer control information, identifying the physical bearer circuit by a circuit Identification Code (CIC).
ISUP消息携带呼叫控制和不记名控制信息，识别的物理载体电路由一个电路识别代码(CIC)。
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