Digital cellular telecommunications system (Phase 2) - General on supplementary services (Endorsement of the English version ETS 300503:1996-05 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Types of Mobile Stations (MS) (Endorsement of the English version ETS 300504:1998-01 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Types of Mobile Stations (MS) (Endorsement of the English version ETS 300505:1998-01 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Security aspects (Endorsement of the English version ETS 300506:2000-08 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - Service accessibility (Endorsement of the English version ETS 300507:1996-09 as German standard)
Edition 2001-04

Digital cellular telecommunications system (Phase 2) - International Mobile station Equipment Identities (IMEI) (Endorsement of the English version ETS 300508:2000 as German standard)
Edition 2000-12

European digital cellular telecommunications system (Phase 2) - Subscriber Identity Modules (SIM), Functional characteristics; English version ETS 300509:1994
Edition 1995-01

European digital cellular telecommunications system (Phase 2) - Description of Charge Advice Information (CAI); English version ETS 300510:1996
Edition 1996-10

European digital cellular telecommunications system (Phase 2) - Man-Machine Interface (MMI) of the Mobile Station (MS); English version ETS 300511:1995
Edition 1995-12

European digital cellular telecommunications system (Phase 2) - Procedure for call progress indications; English version ETS 300512:1996
Edition 1996-08