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分组网接通率低的原因分析江苏省数据通信局田丽娟沈旭辉陈其研究分组网的接通率问题，重点在于研究分析各用户无效呼叫的原因，最终归属于一点，就是要研究Ｘ．２５基本协议，看通信的全过程是否符合Ｘ．２５协议规程．我们知道，分组交换网的通信有３个阶段：呼叫建立、...
Analysis of the causes of low packet network connection rate Jiangsu Provincial Bureau of Communications Tian Lijuan Shen Xuhui Chen Qi research on the connection rate of the packet network, the focus is on the analysis of the reasons for each user invalid call, and ultimately belong to one point, is to study X. 25 basic agreement, see whether the whole process of communication accord with X. 25 protocol rules. We know, packet-switched network communication has three stages: call establishment, ...