ETSI PRTBR 32-1997 数字蜂窝通信系统(第2阶段).在DCS 1,800频段和附加GSM 900频段内运行的移动台的附加要求.电话.第2版
Digital Cellular Telecommunications System (Phase 2); Attachment Requirements for Mobile Stations in the DCS 1800 Band and Additional GSM 900 Band; Telephony Second Edition