Digital cellular telecommunications system (Phase 2) - Full rate speech - Part 6: Voice Activity Detection (VAD) for full rate speech traffic channels (Endorsement of English version ETS 300580-6:1998-04 as German standard)
Edition 2001-04

Integrated Services Digital Network (ISDN) - Digital Subscriber Signalling System No. one (DSS1) and Signalling System No. 7 (SS7) protocols - Signalling application for the mobility management service on the alpha interface - 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 301144-6 V 1.1.1 (2000-12) as German Standard)
Edition 2001-08

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Negotiation during call/connection establishment phase - 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 301067-6 V 2.1.1 (2000-06) as German Standard)
Edition 2001-09

Broadband Integrated Services Digital Network (B-ISDN) - Digital Subscriber Signalling System No. two (DSS2) protocol; Connection characteristics; Peak cell rate modification by the connection owner - 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 301003-6 V 1.1.3 (2000-10) as German standard)
Edition 2001-09

Integrated Services Digital Network (ISDN) - Supplementary service interactions; 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 300195-6 V 1.2.1 (2000-11) as German standard)
Edition 2001-09

Intelligent Network (IN) - Intelligent Network Capability Set 1 (CS1); Core Intelligent Network Application Protocol (INAP) - Part 6: Protocol Implementation Conformance Statement (PICS) proforma specification for Service Control Function (SCF); Service Data Function (SDF) interface (Endorsement of the English version ETS 300374-6:1998-09 as German Standard)
Edition 2001-09

V interfaces at the digital Local Exchange (LE) - V5.2 interface for the support of Access Network (AN) - Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network layer (LE side) (Endorsement of the English version EN 300347-6 V 3.1.1 (2001-03) as German Standard)
Edition 2001-12

V interfaces at the digital Local Exchange (LE) - V5.1 interface for the support of Access Network (AN) - Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network layer (LE side) (Endorsement of the English version EN 300324-6 V 3.1.1 (2001-03) as German Standard)
Edition 2001-12

Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7); ISDN User Part (ISUP) version 4 for the international interface - Part 6: Connected Line Identification Restriction (COLR) supplementary service (ITU-T Recommendation Q.731, clause 6 (1993), modified) (Endorsement of the English version EN 300356-6 V 4.1.2 (2001-07) as German standard)
Edition 2002-01

Integrated Services Digital Network (ISDN) - Advice of Charge (AOC) 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 300182-6 V 1.4.1 (2001-06) as German Standard)
Edition 2002-03