在TCH信道上收到下面哪条消息时计一次MC739掉话（）
- A、Connetion Failure Indication (cause'radio link failure')
- B、Connetion Failure Indication(cause'remmote transcoder failure')
- C、Connetion Failure Indication(cause'equipment failure')
- D、Connetion Failure Indication(cause'YY_TXPWR_M')
正确答案:B
答案解析:有
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