ETSI TS 122 024-2017 数字蜂窝通信系统(第2+阶段)(GSM全球移动通信系统);通用移动通信系统(UMTS);长期演进技术(LTE);收费信息说明(CAI)(V14.0.0;3GPP TS 22.024,版本14.0.0 发行版本14)
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Description of Charge Advice Information (CAI) (V14.0.0; 3GPP TS 22.024 version 14.0.0 Release 14)