DIN ETS 300901:2001 数字移动电话远程通信系统(阶段2).短信息服务点对点技术的实现 (英文版本核准本 ETS 300901:1998-12 作为德国标准)
Digital cellular telecommunications system (Phase 2+) - Technical realization of Short Message Service (SMS) Point-to-Point (PP) (Endorsement of the English version ETS 300901:1998-12 as German standard)