随着我国“四化”建设的发展,广大用户肘民用移动通讯提出了新的要求,要求使用先进的自动拨号系统进行灵活的组网。这些先进的系统大多数都使用便于集成化和微机化的数字信令方式。本文就无中心台的自动拨号系统中的数字信令进行介绍和讨论。这些数字信令方式经实践证明是有效的。在国内已有一些厂家引进使用这种数字信令系统。本文的发表,相信会有助于对这种系统进行分析、消化和吸收。关于此类系统的结构、流程和应刚,本刊以后会继续发表,同时也欢迎在这些方面有心得的同志来稿。——编者 With the development of the “four modernizations” in our country, many users have put forward new requirements for civilian mobile communications and require the use of advanced automatic dialing systems for flexible networking. Most of these advanced systems use digital signaling that is easy to integrate and computerize. This article describes and discusses the digital signaling in an automatic dialing system without a central station. These digital signaling methods have proved to be effective. Some domestic manufacturers have introduced the use of this digital signaling system. This article’s publication, I believe will help to analyze, digest and absorb such a system. With regard to the structure, procedures and implementation of such systems, we will continue to publish them later, and we also welcome contributions from those who have experience in these fields. --editor