Integrated Services Digital Network (ISDN); Call Hold (HOLD) 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 September of 2003.)

Die Norm herausgegeben am 1.9.2003

Integrated Services Digital Network (ISDN); Call Hold (HOLD) 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 July of 2003.)

Die Norm herausgegeben am 1.7.2003

Integrated Services Digital Network (ISDN);Call Hold (HOLD) 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 March of 2022.)

Die Norm herausgegeben am 1.3.2022

Integrated Services Digital Network (ISDN); Call Hold (HOLD) 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 September of 2003.)

Die Norm herausgegeben am 1.9.2003

Integrated Services Digital Network (ISDN);Call Hold (HOLD) 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 March of 2022.)

Die Norm herausgegeben am 1.3.2022

Integrated Services Digital Network (ISDN); Call Hold (HOLD) 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 September of 2003.)

Die Norm herausgegeben am 1.9.2003

Integrated Services Digital Network (ISDN); Call Hold (HOLD) 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) and other digital telecommunications networks; Line transmission of non-telephone signals; Video codec for audiovisual services at p x 64 kbit/s [ITU-T Recommendation H.261 (1993), modified] (Endorsed by AENOR in November of 2003.)

Die Norm herausgegeben am 1.11.2003

Integrated Services Digital Network (ISDN);Audiovisual services;Inband signalling procedures for audiovisual terminals using digital channels up to 2 048 kbit/s (Endorsed by Asociación Espanola de Normalización in March of 2022.)

Änderung herausgegeben am 1.3.2022

Integrated Services Digital Network (ISDN);Audiovisual services; Inband signalling procedures for audiovisual terminals using digital channels up to 2 048 kbit/s (Endorsed by Asociación Espanola de Normalización in March of 2022.)

Die Norm herausgegeben am 1.3.2022