Universal Personal Telecommunication (UPT) - UPT phase 2 - Functional specification of the interface of a UPT Integrated Circuit Card (ICC) and Card Accepting Devices (CADs); UPT card accepting Dual Tone Multiple Frequency (DTMF) device; Conformance test specification (Endorsement of the English version EN 301366 V 1.1.2 (1999-05) as German Standard)
Edition 2001-08

Digital cellular telecommunications system (Phase 2+) - GSM Cordless Telephony System (CTS), Phase 1 - CTS radio interface layer 3 specification (GSM 04.56 version 8.0.1 Release 1999) (Endorsement of the English version EN 302406 V8.0.1 (2000-08) as German standard)
Edition 2004-03

Q3 interface at the Local Exchange (LE) for line and circuit testing of analogue and Integrated Services Digital Network (ISDN) subscriber lines - Part 1: Q3 interface specification (Endorsement of the English version EN 301006-1 V 1.2.3 (1998-10) as German Standard)
Edition 2000-02

V interfaces at the digital Service Node (SN) - Interfaces at the VB5.1 reference point for the support of broadband or combined narrowband and broadband Access Networks (ANs) - Part 1: Interface specification (Endorsement of the English version EN 301005-1 V 1.1.4 (1998-05) as German Standard)
Edition 2000-02

V interface at the digital Service Node (SN) - Interface at the VB5.2 reference point for the support of broadband or combined narrowband and broadband Access Networks (ANs) - Part 1: Interface specification (Endorsement of the English version EN 301217-1 V.1.2.2 (1999-09) as German standard)
Edition 2000-10

V interfaces at the digital Local Exchange (LE) - V5.1 interface for the support of Access Network (AN) - Part 1: V5.2 interface specifictation (Endorsement of the English version EN 300347-1 V 2.2.2 (1999-12) as German standard)
Edition 2000-10

Telecommunications Management Network (TMN) - Q3 interface at the Local Exchange (LE) for fault and performance management of V5 interfaces and associated customer profiles - Part 1: Q3 interface specification (Endorsement of the English version EN 300379-1 V 1.2.1 (1999-10) as German standard)
Edition 2000-10

Telecommunications Management Network (TMN) - Q3 interface at the Local Exchange (LE) for configuration management of V5 interfaces and associated customer profiles - Part 1: Q3 interface specification (Endorsement of the English version EN 300377-1 V 1.2.1 (1999-10) as German standard)
Edition 2000-10

V interfaces at the digital Local Exchange (LE) - V5.1 interface for the support of Access Network (AN) - Part 1: V5.1 interface specification (Endorsement of the English version EN 300324-1 V 2.1.1 (2000-04) as German standard)
Edition 2001-09

Universal Personal Telecommunication (UPT) - UPT Phase 2 - Functional specification of the interface of a UPT Integrated Circuit Card (ICC) and Public Switched Telephone Network (PSTN), Integrated Services Digital Network (ISDN) and Global System for Mobile communications (GSM) terminals (one pass and multiple pass authentication) (Endorsement of the English version EN 300823 V 1.2.2 (1999-04) as German Standard)
Edition 2000-06