Out-of-band signaling is signaling that does not take place over the same path as the conversation.
带外信号则不发作在同一途径作为交谈。
Altman likened hearing half a phone conversation to the difference between walking on a smooth sidewalk to an uneven, rock-strewn path.
阿尔曼特把听一方的电话通话类比为在一条平坦的人行道上行走与在一条高低不平的、布满卵石的小径上行走之间的不同。
Altman likened hearing half a phone conversation to the difference between walking on a smooth sidewalk to an uneven, rock-strewn path.
阿尔曼特把听一方的电话通话类比为在一条平坦的人行道上行走与在一条高低不平的、布满卵石的小径上行走之间的不同。
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