ETSI TS 132 225-2005 数字蜂窝通信系统(第2+阶段).全球移动通信系统(UMTS).通信管理.计费管理.IP多媒体子系统(IMS)的计费数据描述.3GPP TS 32.225(版本5.9.0,第5次发布)
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Telecommunication management; Charging management; Charging data description for the IP Multimedia Subsystem (IMS) (3GPP TS 32.225 Version 5.9.0 Rele