Integrated Services Digital Network (ISDN) - Conference call, add-on (CONF) 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 300185-5 V 1.2.4 (1998-06) as German standard)
Edition 2000-01

Integrated Services Digital Network (ISDN) - Three-Party (3PTY) 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 300188-3 V 1.2.4 (1998-06) as German standard)
Edition 2000-01

V interfaces at the digital Local Exchange (LE) - V5.1 interface for the support of Access Network (AN) - Part 7: Test Suite Structure and Test Purposes (TSS&TP) specification for the data link layer as German standard) (Endorsement of the English version ETS 300324-7:1999 as German standard)
Edition 2000-10

Integrated Services Digital Network (ISDN); Telephony 7 kHz, videotelephony, audiographic conference and videoconference teleservices - 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 300267-5 V 1.2.6 (1999-09) as German standard)
Edition 2001-02

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI); Test Case Library (TCL) - Part 9: Abstract Test Suite (ATS) for Network (NWK) layer; Fixed radio Termination (FT) (Endorsement of the English version ETS 300497-9 V 0.3.2 (1999-09) as German standard)
Edition 2000-07

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI); Test Case Library (TCL) - Part 8: Test Suite Structure (TSS) and Test Purposes (TP); Fixed radio Termination (FT) (Endorsement of the English version ETS 300497-8 V 0.3.2 (1999-09) as German standard)
Edition 2000-07

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI); Test Case Library (TCL) - Part 4: Test Suite Structure (TSS) and Test Purposes (TP); Data Link Control (DLC) layer (Endorsement of the English version EN 300497-4 V 0.3.0 (1999-10) as German standard)
Edition 2000-07

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI); Test Case Library (TCL) - Part 2: Abstract Test Suite (ATS) for Medium Access Control (MAC) layer; Portable radio Termination (PT) (Endorsement of the English version EN 300497-2 V 0.3.1 (1999-10) as German standard)
Edition 2000-07

Digital Enhanced Cordless Telecommunications (DECT) - Common Interface (CI); Test Case Library (TCL) - Part 1: Test Suite Structure (TSS) and Test Purposes (TP) for Medium Access Control (MAC) layer (Endorsement of the English version EN 300497-1 V 0.3.2 (1999-09) as German standard)
Edition 2000-07

Integrated Services Digital Network (ISDN) - Subaddressing (SUB) 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 300061-6 V 1.3.3 (1999-11) as German standard)
Edition 2000-09