Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Generic functional protocol for the support of supplementary services at the "b" service entry point for Virtual Private Network (VPN) applications - 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 301061-4 V 1.1.4 (1999-10) as German standard)
Edition 2000-10

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Generic functional protocol for the support of supplementary services at the "b" service entry point for Virtual Private Network (VPN) applications - Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (Endorsement of the English version EN 301061-6 V 1.1.4 (1999-10) as German standard)
Edition 2000-10

Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN) - Digital Subscriber Signalling System No. two (DSS2); Broadband Inter-Exchange Signalling (B-QSIG) and Signalling System No. 7 (SS7); Prenegotiation - Part 1: Protocol specification (Endorsement of the English version EN 302091-1 V 1.1.3 (1999-11) as German standard)
Edition 2000-10

Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN) - Digital Subscriber Signalling System No. two (DSS2); Broadband Inter-Exchange Signalling (B-QSIG) and Signalling System No. 7 (SS7); Prenegotiation - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 302091-2 V 1.1.3 (1999-11) as German standard)
Edition 2000-10

Broadband Integrated Services Digital Network (B-ISDN) and Broadband Private Integrated Services Network (B-PISN) - Digital Subscriber Signalling System No. two (DSS2); Broadband Inter-Exchange Signalling (B-QSIG) and Signalling System No. 7 (SS7); call control in a separated call and bearer control environment - Part 1: Protocol specification (Endorsement of the English version EN 302092-1 V 1.2.2 (1999-11) as German standard)
Edition 2000-10

Broadband Integrated Services Digital Network (B-ISDN); Digital Subscriber Signalling System No. two (DSS2) protocol - B-ISDN user-network interface layer 3 specification for point-to-multipoint call/bearer control - Part 1: Protocol specification [ITU-T Recommendation Q.2971 (1995), modified] (Endorsement of the English version EN 300771-1 V 2.0.1 (2000-04) as German standard)
Edition 2001-02

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM transfer capability and traffic parameter indication - Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (Endorsement of the English version EN 301068-6 V 1.2.1 (2002-08) as German standard)
Edition 2003-08

Integrated Services Digital Network (ISDN) - Generic keypad protocol for the support of supplementary services - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification (Endorsement of the English version EN 300122-1 V 1.2.4 (1998-06) as German standard)
Edition 2000-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control - Part 7: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (Endorsement of the English version EN 300403-7 V 2.1.2 (2000-02) as German standard)
Edition 2000-12

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; ATM transfer capability and traffic parameter indication - 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 301068-4 V 1.2.1 (2002-08) as German standard)
Edition 2003-08