ETSI TR 123 911-2001 数字蜂窝通信系统(第2+阶段)(GSM).全球移动通信系统(UMTS).带外代码转换器控制的技术报告3GPP TR 23.911(版本4.0.0,第4次发布)
Digital Cellular Telecommunications System (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Technical Report on Out-of-Band Transcoder Control (3GPP TR 23.911 Version 3.0.1 Release 1999)