Broadband integrated services digital network (B-ISDN) and Broadband private integrated services network (B-PISN) - Digital subscriber signalling system No. two (DSS2) and Broadband QSIG (B-QSIG) protocol - Call control specification in a separated call and bearer control environment - Part 4: abstract test suite (ATS) and partial protocol implementation extra information for testing (PIXIT) proforma specification (V1.1.1)
Edition 2014-04-05

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Data link layer - Part 7: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the general protocol (V1.4.5)
Edition 2005-09-01

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) protocol - Signalling network layer for circuit-mode basic call control - Part 1: protocol specification
Edition 2000-04-01

Broadband integrated services digital network (B-ISDN) - Digital subscriber signalling system No. two (DSS2) protocol - B-ISDN user-network interface layer 3 specification for basic call/bearer control - Part 2: protocol implementation conformance statement (PICS) proforma specification (V1.3.1)
Edition 2014-12-19

Integrated Services Digital Network (ISDN) - Definition and usage of cause and location in Digital Subscriber Signalling System No. one (DSS1) and Signalling System No. 7 (SS7) ISDN User Part (ISUP) - (ITU-T Recommendation Q.850 (1998) with addendum modified) (V1.3.1)
Edition 2005-09-01

Integrated Services Digital Network (ISDN) - Security tools (SET) procedures - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: protocol specification
Edition 2002-04-01

Telecommunications - Integrated services digital network (ISDN) - Digital subscriber signalling system N o one (DSS1) protocol - Basic call applications enhancement at the "B" service entry point for virtual private network (VPN) applications - Part 1: protocol specification
Edition 2002-04-01

Integrated Services Digital Network (ISDN) Digital Subscriber Signalling 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 1: protocol specification
Edition 2002-04-01

Integrated services digital network (ISDN) - Digital subscriber signalling system No. 1 (DSS1) and signalling system No. 7 (SS7) protocols - Call forwarding on not reachable (CFNRc) supplementary service for cordless terminal mobility (CTM) phase - Part 3: test suite structure and test purpose (TSS&TP) specification for the user (V1.1.1)
Edition 2014-03-19

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 1: Protocol specification (Endorsement of the English version EN 301061-1 V 1.2.2 (1998-04) as German standard)
Edition 2000-01