Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) and Signalling System No. 7 (SS7) protocols; Call Forwarding on Not Reachable (CFNRc) supplementary service for Cordless Terminal Mobility (CTM) phase 1 - Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user (Endorsement of the English version EN 302094-4 V 1.1.1 (2002-02) as German Standard)
Edition 2002-12

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Cordless Terminal Mobility (CTM); Incoming call additional network feature for the VPN "b" service entry point - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specicification (Endorsement of the English version EN 301455-2 V 1.4.1 (2002-01) as German Standard)
Edition 2002-11

Terminal Equipment (TE) - Telephony for the hearing impaired - Electrical coupling of telephone sets to hearing aids; English version ETS 300679:1996
Edition 1997-11

Private Integrated Sevice Network (PISN) - Terms and definitions; English version ETS 300415:1996
Edition 1997-08

ElectroMagnetic Compatibility (EMC) standard for radio equipment and services - Part 9: Specific conditions for wireless microphones, similar Radio Frequency (RF) audio link equipment, cordless audio and in-ear monitoring devices - Harmonised Standard covering the essential requirements of article 3.1(b) of Directive 2014/53/EU (Endorsement of the English version EN 301 489-9 V2.1.1 (2019-04) as a German standard)
Edition 2020-02

Digital Enhanced Cordless Telecommunications (DECT) - Cordless Terminal Mobility (CTM) - Feature Package 1 (FP1); CTM circuit-switched data profile, 32 kbit/s and 64 kbit/s unrestricted digital information (UDI) (Endorsement of the English version EN 302096 V 0.2.3 (1999-11) as German standard)
Edition 2000-07

Business TeleCommunications (BTC) - Planning of loudness rating and echo values for private networks digitally connected to the public network; English version ETS 300283:1994
Edition 1994-09

Telephony for hearing impaired people - Inductive coupling of telephone earphones to hearing aids; English version ETS 300381:1994
Edition 1995-09

Methods for Testing and Specification (MTS) - Protocol and profile conformance testing specifications - Standardization methodology; English version ETS 300406:1995
Edition 1996-01

Integrated Services Digital Network (ISDN); 3,1 kHz telephony teleservice; end-to-end compatibility requirements for telephony terminals; english version ETS 300082:1992
Edition 1992-06