发展中的无绳电话所谓无绳电话，不是指日益广泛使用的手提电话，即俗称大哥大，而是专指在室内使用的无绳电话，即人们常说的＂子母机＂。无绳电话是伴随着通信技术的发展而诞生和发展起来的。早期的无绳电话存在着诸如主机体积大、通话时间短、杂音多、通话保密性并或功... The development of cordless phones The so-called cordless phones, not refers to the increasingly widespread use of mobile phones, commonly known as the big brother, but specifically refers to the use of cordless phones indoors, that is, people often say that “child machine.” Cordless phones are born and developed along with the development of communication technologies. Earlier cordless phones such as the host volume, talk time is short, more noise, call privacy and or ...