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无绳电话一般可以将提供低移动性、低功耗,双向无线话音的通信划归无绳电话。它在通信范围和用户速度上移动性都较低。无绳电话应用了20世纪70年代末出现的模拟无线电技术,取得了巨大进展,它已经演变成了第二代无绳电话(CT-2),数字化欧洲无绳电话(DECT)标准和美国几种不同的工业科学和医学(ISM)分支技术①,它们都采用了数字无线电技术。
Cordless phones are generally classified as cordless phones that provide low-mobility, low-power, two-way wireless voice. It has low mobility in communication range and user speed. Significant advances have been made in the use of analog radio technology that emerged in the late 1970s in cordless phones, which have evolved into the second generation of cordless phones (CT-2), the digital European cordless telephone (DECT) standard and several different U.S. Industrial Scientific and Medical (ISM) branch technology, 1, all using digital radio technology.