Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Call offer supplement service - Part 1: Test Suite structure and Test Purposes (TSS&TP) (Endorsement of the English version EN 301491-1 V 1.1.2 (2000-11) as German standard)
Edition 2001-05

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Call offer supplementary service - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (Endorsement of the English version EN 301491-2 V 1.2.1 (2002-01) as German Standard)
Edition 2002-11

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Cordless terminal authentication supplementary services - Part 1: Test Suite structure and Test Purposes (TSS&TP) specification for the VPN "b" service entry point (Endorsement of the English version EN 301492-1 V 1.1.2 (2000-12) as German standard)
Edition 2001-05

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Cordless terminal authentication supplementary service - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma for the VPN "b" service entry point (Endorsement of the English version EN 301492-2 V 1.2.1 (2002-01) as German Standard)
Edition 2002-11

Global System for Mobile communications (GSM) - Base Station (BS) equipment - Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU (Endorsement of the English version EN 301 502 V12.5.2 (2017-03) as German standard)
Edition 2017-12

Digital cellular telecommunications system (Phase 2+) - Mobile radio interface layer 3 specification - Radio Resource Control Protocol (GSM 04.18 version 8.4.1 Release 1999) (Endorsement of the English version EN 301503 V8.4.1 (2000-10) as German standard)
Edition 2004-03

Global System for Mobile communications (GSM) - Mobile Stations (MS) equipment - Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU (Endorsement of the English version EN 301 511 V12.5.1 (2017-03) as German standard)
Edition 2017-07

Global System for Mobile communication (GSM) - Requirements for GSM operation on railways (Endorsement of the English version EN 301 515 V3.0.0 (2018-07) as a German standard)
Edition 2018-11

Fixed Radio Systems - Point to Multipoint Antennas - Antennas for Point-to-Multipoint fixed radio systems in the 1 GHz to 3 GHz band (Endorsement of the English version EN 301525 V 1.1.1 (2000-06) as German standard)
Edition 2001-02

Electromagnetic Compatibility and Radio spectrum Matters (ERM) - Harmonized EN for CDMA spread spectrum mobile stations operating in the 450 MHz cellular band (CDMA 450) and 410, 450 and 870 MHz PAMR bands (CDMA-PAMR) covering essential requirements of article 3.2 of the R&TTE Directive (Endorsement of the English version EN 301526 V1.1.1 (2006-07) as German standard)
Edition 2006-12