[多选] What are three factors used to determine the amount of bandwidth that is required for a single VoIP call?()
A . codec B . link speed C . Layer 2 encapsulation D . packet overhead (IP/UDP/RTP) E . link delay F . total number of simultaneous calls that are allowed
根据以下的叉车仪表选择对应的名称?() 左转向指示灯。 发动机转速表。 水温表。 此指示灯常亮机油压力低。
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What are three factors used to determine the amount of bandwidth that is required for a single VoIP call?()