off-hook signal 中文意思是什麼
off-hook signal
解釋
摘機信號-
Interface circuits include auto - routing, load switch, polarity - reverting signal inverting and on - off hook checking
埠電路包括自動路由切換,負載轉換,反極跳轉,摘掛機檢測等部分。 -
They fulfill communication with the gsm modem, read ring signal, and check on - off hook timely respectively
分別執行與無線通信模塊的通信,讀取來電信號,定時查詢話機的摘掛機狀態功能。
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