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无绳电话机由于副机(手机)能在距主机一定范围内自由移动使用,即可向外拨打电话,又能受话,因而较传统电话机方便得多。但无绳电话机容易被人窃听或窃打,只要窃打者使用的副机工作频率及产生的导频信号与你的副机相同,并且,在有效的范围内当你的副机未置于主机位置时,他就可以通过你的主机向外拨打电话或受话。
Cordless Phones Since the accessory (cellphone) can move freely within a certain range of the host computer, it can dial out and receive calls, making it much more convenient than a traditional telephone. However, cordless phones can be easily eavesdropped or tampered with, as long as the batterer uses the slave operating frequency and the resulting pilot signal is the same as your slave, and in the valid range when your slave is not in the master Position, he can call out or talk through your host.