Integrated Services Digital Network (ISDN) - Multiple Subscriber Number (MSN) 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 300052-6 V 1.3.3 (1999-11) as German standard)
Edition 2000-10

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Diversion supplementary services - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma (Endorsement of the English version EN 301453-2 V 1.2.1 (2002-01) as German Standard)
Edition 2002-11

Private Integrated Services Network (PISN) - Inter-exchange signalling protocol; Call offer supplementary service - Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification (Endorsement of the English version EN 301491-2 V 1.2.1 (2002-01) as German Standard)
Edition 2002-11

Integrated Services Digital Network (ISDN); Subaddressing (SUB) supplementary service - 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 300061-4 V 1.2.4 (1998-06) as German standard)
Edition 1999-12

Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service - 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 300064-4 V 1.3.4 (1998-06) as German standard)
Edition 1999-12

Integrated Services Digital Network (ISDN) - Call Hold (HOLD) 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 300141-6 V 1.3.4 (1999-11) as German Standard)
Edition 2000-05

Intelligent Network (IN) - Intelligent Network Capability Set 3 (CS3); Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification - Part 1: Basic capability set of CS3 (Endorsement of the English version EN 301934-1 V 1.1.1 (2003-01) as German standard)
Edition 2003-07

Intelligent Network (IN) - Intelligent Network Capability Set 3 (CS3); Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification - Part 2: Call Party Handling (CPH) (Endorsement of the English version EN 301934-2 V 1.1.1 (2003-01) as German standard)
Edition 2003-07

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

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