BT Busy Tone


  • 翻译:占线音,忙音

同义词

1)BT Busy Tone,占线音,忙音2)busy tone,忙音,占线音3)busy-back tone,忙音,蜂音,占线音4)busy-buzz,忙蜂音,占线音5)Busy signal,忙音;占线信号6)audible busy signal,busy back,忙音信号(占线信号)

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