And as with digital cellular, the talk and standby time are longer than analog, and the risk of someone overhearing your conversation or swiping your phone number is lower.
And as with digital cellular, the talk and standby time are longer than analog, and the risk of someone overhearing your conversation or swiping your phone number is lower.
数字移动电话的通话时间、待机时间都比模拟机长；电话被窃听、被盗用的风险要低一些。