Integrated Services Digital Network (ISDN) - Teleaction teleservice - Service description (Endorsement of the English version EN 301131 V 1.1.1 (1999-01) as German standard)
Edition 2000-09

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; Teleaction service - Part 1: Protocol specification (Endorsement of the English version EN 301145-1 V 1.1.4 (1999-03) as German Standard)
Edition 2001-09

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; Teleaction service - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 301145-2 V 1.1.4 (1999-03) as German Standard)
Edition 2001-09

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; teleaction service - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the End User Terminal (EUT) (Endorsement of the English version EN 301145-3 V 1.1.6 (1999-11) as German Standard)
Edition 2000-10

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; teleaction service - Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the Service Provider Terminal (SPT) (Endorsement of the English version EN 301145-5 V 1.1.6 (1999-11) as German Standard)
Edition 2000-10

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; teleaction service - Part 7: Test Suite Structure and Test Purposes (TSS&TP) specification for the Teleaction Management Function (TMF) (Endorsement of the English version EN 301145-7 V 1.1.6 (1999-11) as German Standard)
Edition 2000-10

Integrated Services Digital Network (ISDN) - Teleaction teleservice - Service description
Edition 2001-12-01