Integrated Services Digital Network (ISDN) - Security tools (SET) procedures; Digital Subscriber Signalling System No. one (DSS1) protocol - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user (Endorsement of the English version EN 301002-3 V 1.2.1 (2001-11) as German Standard)
Edition 2002-11

Integrated Services Digital Network (ISDN) - Security tools (SET) procedures; 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 301002-5 V 1.2.1 (2001-11) as German Standard)
Edition 2002-11

Integrated Services Digital Network (ISDN) - Signalling System No. 7; Interworking between ISDN User Part (ISUP) version 2 and Digital Subscriber Signalling System No. one (DSS1) - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification (Endorsement of the English version EN 300899-3 V 1.1.1 (2001-09) as German Standard)
Edition 2003-01

V interfaces at the digital Service Node (SN) - Interfaces at the VB5.2 reference point for the support of broadband or combined narrowband and broadband Access Networks (ANs) - Part 3: Test Suite Structure and Test Purposes (TSS&TPP) (Endorsement of the English version EN 301217-3 V 1.1.1 (2001-01) as German Standard)
Edition 2001-09

Intelligent Network (IN) - Intelligent Network Application Protocol (INAP); Capability Set 2 (CS2) - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for Service Switching Function (SSF); Sub-part 3-3: Specialized Resource Functions (SRF) (Endorsement of the English version EN 301140-3-3 V 1.1.3 (2000-05) as German Standard)
Edition 2001-09

Intelligent Network (IN) - Intelligent Network Application Protocol (INAP); Capability Set 2 (CS2) - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for Service Switching Function (SSF); Sub-part 3-2: Call Party Handling (CPH) (Endorsement of the English version EN 301140-3-2 V 1.1.3 (2000-05) as German Standard)
Edition 2001-09

Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user (Endorsement of the English version EN 300745-3 V 1.2.4 (1998-09) as German standard)
Edition 1999-11

Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) supplementary service; 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 300745-5 V 1.2.4 (1998-09) as German standard)
Edition 1999-11

Integrated Services Digital Network (ISDN) - Outgoing Call Bearing (OCB) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol - Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user [Endorsement of the English version EN 301001-3 V 1.1.3 (1998-10) as German standard]
Edition 1999-11

Integrated Services Digital Network (ISDN) - Outgoing Call Bearing (OCB) supplementary service; 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 301001-5 V 1.1.3 (1998-10) as German standard]
Edition 1999-11