Integrated Services Digital Network (ISDN) - Generic functional protocol for the support of supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol - 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 300196-4 V 1.2.1 (2001-11) as German Standard)
Edition 2002-11

Integrated Services Digital Network (ISDN) - Generic functional protocol for the support of supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol - Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network (Endorsement of the English version EN 300196-5 V 1.2.1 (2001-11) as German Standard)
Edition 2002-11

Integrated Services Digital Network (ISDN) - Generic functional protocol for the support of supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol - 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 300196-6 V 1.2.1 (2001-11) as German Standard)
Edition 2002-11

Integrated Services Digital Network (ISDN) - Diversion supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol - 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 300207-4 V 3.1.1 (2001-11) as German Standard)
Edition 2002-11

Integrated Services Digital Network (ISDN) - Completion of Calls to Busy Subscriber (CCBS) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol - 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 300359-6 V 1.4.1 (2001-11) as German Standard)
Edition 2002-11

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Call completion supplementary service for the VPN "b" service entry point - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (Endorsement of the English version EN 301452-2 V 1.4.1 (2002-01) as German Standard)
Edition 2002-11

Integrated Services Digital Network (ISDN) - Security tools (SET) procedures; Digital Subscriber Signalling System No. one (DSS1) protocol - 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 301002-4 V 1.2.1 (2001-11) als German Standard)
Edition 2002-11

Integrated Services Digital Network (ISDN) - Security tools (SET) procedures; Digital Subscriber Signalling System No. one (DSS1) protocol - 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 301002-6 V 1.2.1 (2001-11) as German Standard)
Edition 2002-11

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Call transfer supplementary service for the VPN "b" service entry point - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (Endorsement of the English version EN 301490-2 V 1.2.1 (2002-01) as German Standard)
Edition 2002-11

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Advice of Charge (AoC) supplementary services - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (Endorsement of the English version EN 301483-2 V 1.2.1 (2002-01) as German Standard)
Edition 2002-11