Integrated Services Digital Network (ISDN);Completion of Calls to Busy Subscriber (CCBS) 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 July of 2022.)

Die Norm herausgegeben am 1.7.2022

Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) 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 April of 2005.)

Die Norm herausgegeben am 1.4.2005

Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) 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 April of 2005.)

Die Norm herausgegeben am 1.4.2005

Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) 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 March of 2004.)

Die Norm herausgegeben am 1.3.2004

Integrated Services Digital Network (ISDN);Completion of Calls to Busy Subscriber (CCBS) 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 July of 2022.)

Die Norm herausgegeben am 1.7.2022

Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) 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 April of 2005.)

Die Norm herausgegeben am 1.4.2005

Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) 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 April of 2005.)

Die Norm herausgegeben am 1.4.2005

Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) 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 March of 2004.)

Die Norm herausgegeben am 1.3.2004

Integrated Services Digital Network (ISDN);Signalling System No.7;Signalling interworking specification for ISDN User Part (ISUP) version 2 (Endorsed by Asociación Espanola de Normalización in July of 2022.)

Die Norm herausgegeben am 1.7.2022

Private Telecommunication Network (PTN);Specification, functional models and information flows;Call offer supplementary service (Endorsed by Asociación Espanola de Normalización in July of 2022.)

Die Norm herausgegeben am 1.7.2022