ETSI TS 123 072-2004 数字蜂窝通信系统(第2+阶段).全球移动通信系统(UMTS).呼叫改发补充业务.第2阶段.3G TS 23.072(版本6.0.0,第6次发布)
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Call Deflection Supplementary Service; Stage 2 3G TS 23.072 Version 6.0.0 Release 6