European Digital Cellular Telecommunications Systems (Phase 2) - Interworking Between the Public Land Mobile Network (PLMN) and the Packet Switched Public Data network (PSPDN) for Packet Assembly
欧洲数字蜂窝通信系统(第2阶段).分组组装用公共陆地移动网(PLMN)和分组交换公共数据网(PSPDN)之间的互通