carrier signaling 中文意思是什麼
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Ecsa telecommunications - exchange - interexchange carrier interfaces - 950 xxxx ec - to - ic access signaling protocols
電信.交換-互換載體介面. 950 xxxxec至ic的訪問信令發送協議 -
Telecommunications - exchange - interexchange carrier interfaces - individual channel signaling protocols
電信.交換-互換載體介面.單通道信號協議
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