基于IMS的固定网语音业务计费系统计费性能技术要求和检测方法
Technical requirements and testing methods for billing performance of billing system of fixed network voice services based on IMS
2015-10-14
YD/T 1328-2015
数字蜂窝移动通信网语音业务计费系统计费性能技术要求和检测方法
Technical requirements and testing methods for billing performance of billing system of digital cellular mobile communication network voice service
2015-07-14
YD/T 1278-2003
在用局用交换设备计费技术要求和检测方法----固定电话网部分
The technical demand and testing method for the charging performance of SPC --telephone network part