CT2(第二代无绳电话)从酝酿、诞生、发展到现在已经有五年多了。在其发展道路上既有成功也有挫折.国内外对于CT2系统十分关注却意见不一。本文主要研究CT2系统在国外的发展情况,以便借鉴国际上相关技术的经验和教训,探讨发展我国个人通信的路子。 CT2 (second generation cordless phones) from brewing, birth, development has now more than five years. There are both successes and setbacks in the development of this system.It is disagreeable to pay close attention to the CT2 system at home and abroad. This paper mainly studies the development of CT2 system in foreign countries in order to draw lessons from the experience and lessons of international related technologies to explore ways to develop personal communication in our country.