GSM 04.11-1995 Digital Cellular Telecommunication System (Phase 2+); Point-to-Point (PP) Short Message Service (SMS) Support on Mobile Radio Interface (GSM 04.11)
1997GSM 04.11-1997 See PRETS 300 942 Version 5.2.0; Second Edition
1996GSM 04.11-1996 Digital Cellular Telecommunication System (Phase 2+); Point-to- Point (PP) Short Message Service (SMS) Support on Mobile Radio Interface (Version 5.1.0)
1995GSM 04.11-1995 Digital Cellular Telecommunication System (Phase 2+); Point-to-Point (PP) Short Message Service (SMS) Support on Mobile Radio Interface (GSM 04.11)
1994GSM 04.11-1994 European Digital Cellular Telecommunications System (Phase 2); Point-to-Point (PP) Short Message Service (SMS) Support on Mobile Radio Interface