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本文对EWSD交换机软件版本V15的计费文件(AMA)格式进行了分析,给出了AMA话单固定部分和可变部分数据包的含义;并对四种不同类型的话单数据进行了具体分析;最后提出了编写AMA文件预处理程序时需要注意的几个问题。
This paper analyzes the format of accounting file (AMA) of EWSD switch software version V15 and gives the meanings of the fixed part and variable part data packet of AMA phone bill. It also analyzes the four different types of CDR data specifically. Finally, several problems that should be paid attention to when preparing the AMA preprocessing program are presented.