摘要
程控交换机数字中继主要采用No.7信令。在数字中继组网和日常设备维护中,经常出现各种呼叫失败的情况。针对这个问题,利用信令分析,对数字中继可能出现的各种故障进行判断,从中继信令配合等方面说明SEC,CGC,ADI,CFL等信令产生的原因及处理方法。
Most of Digital trunk of PBX （Private Branch Exchange） adopts No. 7 signaling. Aiming at solving the problems of call failure occurring during digital trunk networking and daily equipment maintenance, this paper discusses the judgment methods on failures. It analyzes the causes of SEC ,CGC,ADI, CFL signaling from the aspect of signaling cooperation of digital trunk and puts forward some solutions for improvement.
出处
《电力系统通信》
2008年第12期62-65,72,共5页
Telecommunications for Electric Power System
