ETSI GSM 09.05-1994 欧洲数字蜂窝通信系统(第2阶段).用于分组拆/装(PAD)设备接入的公共陆地移动网(PLMN)和分组交换公用数据网(PSPDN)间的互通
European Digital Cellular Telecommunications System (Phase 2); Interworking between the Public Land Mobile Network (PLMN) and the Packet Switched Public Data Network (PSPDN) for Packet Assembly/Disassembly (PAD) Facility Access