Which two statements are true about the protocols that are used for transmitting voice traffic?()
A. RTP multiplexing is used to keep multiple phone conversations separate
B. RTP provides end-to-end delivery services for voice traffic.
C. UDP is used to ensure a reliable transmission from sender to receiver.
D. RTP is used to provide resource reservation for the voice stream.
E. UDP provides multiplexing of multiple phone conversations.
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室内覆盖系统要求在设计范围内任何地点(不含电梯)所测得的手机接收信号强度不得低于()dBm。
A. -90
B. -85
C. -80
D. -75
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A. 正确
B. 错误
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