2010ETSI TS 101 855-2010 Digital cellular telecommunications system (Phase 2+); Technical Specifications and Technical Reports for a GERANbased 3GPP system
2008ETSI TS 101 855-2008 Digital cellular telecommunications system (Phase 2+); Technical Specifications and Technical Reports for a GERAN-based 3GPP system V8.19.0; 3GPP TS 01.01 version 8.19.0 Release 1999
2007ETSI TS 101 855-2007 Digital cellular telecommunications system (Phase 2+); Technical Specifications and Technical Reports for a GERAN-based 3GPP system V8.18.0; 3GPP TS 01.01 version 8.18.0 Release 1999
2005ETSI TS 101 855-2005 Digital cellular telecommunications system (Phase 2+); Technical Specifications and Technical Reports for a GERAN-based 3GPP system 3GPP TS 01.01 Version 8.17.0 Release 1999
2004ETSI TS 101 855-2004 Digital cellular telecommunications system (Phase 2+); Technical Specifications and Technical Reports for a GERAN-based 3GPP system 3GPP TS 01.01 Version 8.14.0 Release 1999
2003ETSI TS 101 855-2003 Digital cellular telecommunications system (Phase 2+); Technical Specifications and Technical Reports for a GERAN-based 3GPP system 3GPP TS 01.01 Version 8.11.1 Release 1999
2002ETSI TS 101 855-2002 Digital Cellular Telecommunications System (Phase 2+); GSM Release 1999 Specifications 3GPP TS 01.01 Version 8.7.0 Release 1999
2001ETSI TS 101 855-2001 Digital Cellular Telecommunications System (Phase 2+); GSM Release 1999 Specifications 3GPP TS 01.01 Version 8.3.0 Release 1999
2000ETSI TS 101 855-2000 Digital Cellular Telecommunications System (Phase 2+); GSM Release 1999 Specifications GSM 01.01 Version 8.0.0 Release 1999