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单项选择题860Asig-3板两个子单元可以配置成什么？（）

A、DTMF/MFC/CID+DTMF/MFC/CID

B、TONE/DTMF/MFC/CID +DTMF/MFC/CID

C、TONE/DTMF/MFC/CID +DTMF/MFC/CID/TONE

D、TONE/DTMF/MFC/CID/CONF+TONE/DTMF/MFC/CID /CONF

  • B

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