Private Telecommunication Network (PTN); signalling protocol at the S-reference point; identification supplementary services; English version ETS 300191:1992
Edition 1993-09

Public Switched Telephone Network (PSTN) - Category II specification for 9600 or 4800 bits per second duplex modems standardized for use on the PSTN; English version ETS 300002:1996
Edition 1997-08

Public Switched Telephone Network (PSTN) - Basic Category I and Category II specifications for modems standardized for use on the PSTN; English version ETS 300114:1996
Edition 1997-08

Cellular Digital Packet Data (CDPD) System Specification MD-IS and MDBS Management Ensemble
Edition 2001-07

European digital cellular telecommunications system (Phase 2) - Bearer services supported by a GSM Public Land Mobile Network (PLMN); English version ETS 300501:1994
Edition 1995-01

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

European digital cellular telecommunications system (phase 2) - Signalling requirements on interworking between the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN) and the Public Land Mobile Network (PLMN); English version ETS 300600:1995
Edition 1995-08

Universal Serial Bus interfaces for data and power - Part 2-2: Universal Serial Bus - Micro-USB Cables and Connectors Specification, Revision 1.01 (IEC 100/2332/CDV:2014); English version FprEN 62680-2-2:2014
Edition 2015-05

European digital cellular telecommunications system (Phase 2) - Part 1: Base Station System-Mobile-services Switching Centre (BSS-MSC) interface; general aspects; English version ETS 300587-1:1994
Edition 1995-01

Universal serial bus interfaces for data and power - Part 2: Universal serial bus - Micro-USB cables and connectors specification, revision 1.01 (IEC 62680-2:2013); English version EN 62680-2:2013
Edition 2015-02