Integrated Services Digital Network (ISDN); Three-Party (3PTY) 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 (Endorsed by AENOR in October of 2004.)

Die Norm herausgegeben am 1.10.2004

Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Three-Party (3PTY) supplementary service; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user (Endorsed by AENOR in October of 2004.)

Die Norm herausgegeben am 1.10.2004

Integrated Services Digital Network (ISDN);Three-Party (3PTY) supplementary service;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network (Endorsed by Asociación Espanola de Normalización in April of 2022.)

Die Norm herausgegeben am 1.4.2022

Integrated Services Digital Network (ISDN); Three-Party (3PTY) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network (Endorsed by AENOR in October of 2004.)

Die Norm herausgegeben am 1.10.2004

Integrated Services Digital Network (ISDN);Three-Party (3PTY) 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 (Endorsed by Asociación Espanola de Normalización in April of 2022.)

Die Norm herausgegeben am 1.4.2022

Integrated Services Digital Network (ISDN); Three-Party (3PTY) 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 (Endorsed by AENOR in October of 2004.)

Die Norm herausgegeben am 1.10.2004

Integrated Services Digital Network (ISDN); Three-Party (3PTY) 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 (Endorsed by AENOR in October of 2004.)

Die Norm herausgegeben am 1.10.2004

Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Three-Party (3PTY) supplementary service; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the network (Endorsed by AENOR in October of 2004.)

Die Norm herausgegeben am 1.10.2004

Private Telecommunication Network (PTN);Addressing (Endorsed by Asociación Espanola de Normalización in April of 2022.)

Die Norm herausgegeben am 1.4.2022

Private Integrated Services Network (PISN); Addressing [ISO/IEC 11571 (1998), modified] (Endorsed by AENOR in October of 2004.)

Die Norm herausgegeben am 1.10.2004