ETSI TS 122 066-2000 数字蜂窝通信系统(第2+阶段)(GSM).全球移动通信系统(UMTS).支持手机带号转网(MNP).业务描述-第1阶段.3G TS 22.066(版本3.2.0,1999年发布)
Digital Cellular Telecommunications System (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Support of Mobile Number Portability (MNP); Service Description - Stage 1 3G TS 22.066 Version 3.2.0 Release 1999