在最近几年，电话也加入了这一阵营，通过普通电话线路使用Web程序的呼声也越来越高。
In more recent years, telephony has entered this fray, and the desire to make Web programs accessible over normal phone lines has come into vogue.
像俄罗斯和中国这两个国家，人们在没有普通电话的地方使用手机。
In countries like Russia and China, people use mobile phones in places where there is no ordinary telephone.
ADSL是DSL技术的一个分支，同样也是使用普通电话线路来传输数据，但它使用的频率要比语音波段高。
ADSL is a branch of DSL technology, but also the use of ordinary telephone lines to transmit data, but it is used in high frequency band than the voice.
ADSL利用了普通电话线中未使用的高频频段，采用先进的调制技术，提供宽带接入。
ADSL USES the high frequency band which has not been used in the common telephone line and the advanced modulating technique to provide broadband access.
所以普通电话越来越不能适合保密性更高的要求的部门使用，为此开发出高性能保密电话显得非常重要了。
Not ordinary telephone increasingly higher for the confidentiality requirements of the occasion use. That developed high-performance telephone confidentiality is very important.
所以普通电话越来越不能适合保密性更高的要求的部门使用，为此开发出高性能保密电话显得非常重要了。
Not ordinary telephone increasingly higher for the confidentiality requirements of the occasion use. That developed high-performance telephone confidentiality is very important.
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