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)。
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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