Telecontrol equipment and systems - Part 6: Telecontrol protocols compatible with ISO standards and ITU-T recommendations; section 601: Functional profile for providing the connection-oriented transport service in end system connected via permanent acces to a packet switched data network (IEC 60870-6-601:1994); German version EN 60870-6-601:1995
Edition 1995-09

Attachment requirements for Data Terminal Equipment (DTE) to connect to Packet Switched Public Data Networks (PSPDN) using CCITT recommendation X.25 (1984) interface; requirements applicable to DTEs subscribing to Multilink operation; english version ETS 300124:1991
Edition 1992-08

Digital cellular telecommunications system (Phase 2+) - Interworking between a Public Land Mobile Network (PLMN) and a Packet Switched Public Data Network/Integrated Services Digital Network (PSPDN/ISDN) for the support of packet switched data transmission services (Endorsement of the English version ETS 300975:1997-05 as German standard)
Edition 2001-06

Attachment requirements for Data Terminal Equipment (DTE) to connect to Packet Switched Public Data Networks (PSPDN) using CCITT recommendation X.25 (1984) interface; requirements applicable to DTEs subscribing to Link Access Procedure Balanced (LAPB) extended (modulo 128) operation; english version ETS 300123:1991
Edition 1992-08

Intelligent transport systems - ESafety - ECall end to end conformance testing for eCall HLAP in hybrid circuit switched/packet switched network environments; English version EN 18052:2025
Edition 2025-12

Intelligent transport systems. ESafety. ECall end to end conformance testing for IMS packet switched based systems
Edition 2024-12-09

Intelligent transport systems - ESafety - ECall end to end conformance testing for IMS packet switched based systems
Edition 2024-12-04

Information technology. Provision of the OSI connection-mode network service by packet mode terminal equipment to an integrated services digital network (ISDN)
Edition 1994-03-15

Information technology; provision of the OSI connection-mode network service by packet mode terminal equipment to an integrated services digital network (ISDN)
Edition 1992-12