Digital Enhanced Cordless Telecommunications (DECT) - Global System for Mobile communications(GSM) - Attachment requirements for DECT/GSM dual-mode terminal equipment (Endorsement of the English version EN 301439 V 1.1.1 (1999-03) as German standard)
数字增强无绳通信(DECT).全球移动通信系统(GSM).DECT/GSM双模终端设备的附件要求(作为德国标准认可英文版EN 301439 V 1.1.1(1999-03))