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多选题
Which two statements are true about Voice over IP （VoIP） packet delivery in a digital infrastructure？ （）
A
Packets can arrive out of order.
B
Packets must take the same path to the destination.
C
Once packets are received at the destination router， the router performs sampling to ensure the quality of the voice traffic.
D
Packets can experience varying delays across the network.
E
Packets containing voice samples are sequentially numbered by default， allowing for reordering upon arrival at the terminal router along the path.
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更多 “多选题Which two statements are true about Voice over IP （VoIP） packet delivery in a digital infrastructure？ （）APackets can arrive out of order.BPackets must take the same path to the destination.COnce packets are received at the destination router， the router performs sampling to ensure the quality of the voice traffic.DPackets can experience varying delays across the network.EPackets containing voice samples are sequentially numbered by default， allowing for reordering upon arrival at the terminal router along the path.” 相关考题
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单选题Which statement is true about IP telephony calls？（）A
A Voice over IP （VoIP） packet consists of the voice payload， IP header， TCP header， RTP header， and Layer 2 link header.B
The voice carrier stream uses H323 to set up， maintain， and tear down call endpoints.C
Call control signaling uses Real-Time Transport Protocol （RTP） packets that contain actual voice samples.D
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