Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; Quality of Service Class and Parameters indication at call/connection establishment - Part 1: Protocol specification (ITU-T Recommendation Q.2965.1 (1999) and Q 2965.2 (1999), modified) (Endorsement of the English version EN 301815-1 V 1.1.1 (2000-12) as German standard)
Edition 2001-05

Broadband Integrated Services Digital Network (B-ISDN) - AAL Type 2 Signalling protocol; Capability Set 1 - Part 1: Protocol specification (ITU-T Recommendation Q.2630.1 (1999), modified) (Endorsement of the English version EN 301816-1 V 1.1.1 (2000-11) as German standard)
Edition 2001-05

Integrated Services Digital Network (ISDN) - Primary rate User Network Interface (UNI) - Part 1: Layer 1 specification (Endorsement of the English version EN 300011-1 V 1.2.2. (2000-05) as German standard)
Edition 2001-05

Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 4: Gateways basic operation; Sub-part 4-2: Integrated Services Digital Network (ISDN) gateway (Endorsement of the English version ETS 300392-4-2:2000-09 as German Standard)
Edition 2001-07

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 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) - Signalling System No. 7; Support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification (Endorsement of the English version EN 301062-3 V 1.1.1 (2000-08) as German Standard)
Edition 2001-09

Integrated Services Digital Network (ISDN) - Signalling System No. 7; Support of Virtual Private Network (VPN) applications with Private network Q reference point Signalling System number 1 (PSS1) information flows - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 301062-2 V 1.1.1 (2000-08) as German Standard)
Edition 2001-09

Integrated Services Digital Network (ISDN) - Signalling System No. 7; ISDN User Part (ISUP); Application transport mechanism - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification (Endorsement of the English version EN 301069-3 V 1.2.2 (2000-11) as German Standard)
Edition 2001-09

Integrated Services Digital Network (ISDN) - Signalling System No. 7; ISDN User Part (ISUP); Application transport mechanism - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 301069-2 V 1.1.3 (2000-11) as German Standard)
Edition 2001-09