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 (Endorsed by AENOR in November of 2003.)

Die Norm herausgegeben am 1.11.2003

INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - SUBADDRESSING (SUB) 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 December of 1999.)

Die Norm herausgegeben am 1.12.1999

Integrated Services Digital Network (ISDN);Subaddressing (SUB) 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 February of 2022.)

Die Norm herausgegeben am 1.2.2022

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. (Endorsed by AENOR in December of 1999.)

Die Norm herausgegeben am 1.12.1999

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 (Endorsed by AENOR in November of 2003.)

Die Norm herausgegeben am 1.11.2003

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 (Endorsed by AENOR in July of 2003.)

Die Norm herausgegeben am 1.7.2003

Integrated Services Digital Network (ISDN);Direct Dialling In (DDI) supplementary service;Service Description (Endorsed by Asociación Espanola de Normalización in February of 2022.)

Die Norm herausgegeben am 1.2.2022

Integrated Services Digital Network (ISDN);Direct Dialling In (DDI) supplementary service;Functional capabilities and information flows (Endorsed by Asociación Espanola de Normalización in February of 2022.)

Die Norm herausgegeben am 1.2.2022

INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - DIRECT DIALLING IN (DDI) SUPPLEMENTARY SERVICE - DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. ONE (DSS1) PROTOCOL - PART 1: PROTOCOL SPECIFICATION. (Endorsed by AENOR in December of 1999.)

Die Norm herausgegeben am 1.12.1999

Integrated Services Digital Network (ISDN);Direct Dialling In (DDI) supplementary service;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 1: Protocol specification (Endorsed by Asociación Espanola de Normalización in February of 2022.)

Die Norm herausgegeben am 1.2.2022