Digital cellular telecommunications system (Phase 2+) - Specification of the Subscriber Identity Module - Mobile Equipment (SIM-ME) interface (Endorsement of the English version ETS 300977:1998-12 as German standard)
Edition 2001-06

Digital cellular telecommunications system (Phase 2 & Phase 2+) - Base Station System (BSS) equipment specification - Radio aspects (GSM 11.21 V 8.2.1)
Edition 2005-11-01

Digital cellular telecommunications system (Phase 2) - Specification of the Subscriber Identity module - Mobile Equipment (SIM-ME) interface (GSM 11.11 version 4.20.1)
Edition 1999-12-01

Digital cellular telecommunications system (Phase 2) - Base Station System (BSS) equipment specification - Part 1: radio aspects (GSM 11.21, version 4.14.1)
Edition 2000-03-01

Digital cellular telecommunications system (Phase 2) - Base Station System (BSS) equipment specification - Part 2: signalling aspects (GSM 11.23, version 4.9.1)
Edition 2000-08-01

Digital cellular telecommunications system (Phase 2) - Base Station System (BSS) equipment specification - Part 3: transcoder aspects (GSM 11.24, version 4.3.1)
Edition 2000-03-01

Digital cellular telecommunications system (phase 2) - Network Management (NM) - Part 1: objectives and structure of Network Management (GSM 12.00 version 4.5.1)
Edition 2000-08-01

Digital cellular telecommunications system (phase 2) - Network Management (NM) - Part 2: common aspects of GSM/DCS 1800 Networks Management (GSM 12.01, version 4.4.1)
Edition 2000-08-01

Digital cellular telecommunications system (Phase 2) - Subscriber, Mobile Equipment (ME) and services data administration (GSM 12.02)
Edition 2000-09-01

Digital cellular telecommunications system (Phase 2) - Security management (GSM 12.03, version 4.2.1)
Edition 2000-10-01