Broadband Integrated Services Digital Network (B-ISDN);Signalling System No.7;B-ISDN User Part (B-ISUP) Capability Set 1 (CS1);Supplementary services [ITU-T Recommendation Q.2730 (1995), modified] (Endorsed by Asociación Espanola de Normalización in December of 2022.)

Die Norm herausgegeben am 1.12.2022

Integrated Services Digital Network (ISDN);Signalling System No.7;Transaction Capabilities (TC) version 2;Test responder specification (Endorsed by Asociación Espanola de Normalización in December of 2022.)

Die Norm herausgegeben am 1.12.2022

Access and Terminals (AT); Analogue access to the Public Switched Telephone Network (PSTN); Subscriber line protocol over the local loop for display (and related) services; Part 1: On-hook data transmission (Endorsed by AENOR in November of 2008.)

Die Norm herausgegeben am 1.11.2008

Access and Terminals (AT); Analogue access to the Public Switched Telephone Network (PSTN); Subscriber line protocol over the local loop for display (and related) services; Part 2: Off-hook data transmission (Endorsed by AENOR in November of 2008.)

Die Norm herausgegeben am 1.11.2008

Access and Terminals (AT); Analogue access to the Public Switched Telephone Network (PSTN); Subscriber line protocol over the local loop for display (and related) services; Part 3: Data link message and parameter codings (Endorsed by AENOR in November of 2008.)

Die Norm herausgegeben am 1.11.2008

ANALYSIS REAGENTS. SULPHURIC ACID.

Die Norm herausgegeben am 15.10.1958

Integrated Services Digital Network (ISDN);Synchronization and Co-ordination Function (SCF) for the provision of the OSI Connection-mode Network Service (OSI CONS) in an ISDN environment;Specification of SCF [ITU-T Recommendation Q.923 (1995), modified] (Endorsed by Asociación Espanola de Normalización in December of 2022.)

Die Norm herausgegeben am 1.12.2022

Broadband Integrated Services Digital Network (B-ISDN);Digital Subscriber Signalling System No. two (DSS2) protocol;Direct Dialling In (DDI) supplementary service;Part 1: Protocol specification [ITU-T Recommendation Q.2951, clause 1 (1995), modified] (Endorsed by Asociación Espanola de Normalización in December of 2022.)

Die Norm herausgegeben am 1.12.2022

Broadband Integrated Services Digital Network (B-ISDN);Digital Subscriber Signalling System No. two (DSS2) protocol;Direct Dialling In (DDI) supplementary service;Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsed by Asociación Espanola de Normalización in December of 2022.)

Die Norm herausgegeben am 1.12.2022

Broadband Integrated Services Digital Network (B-ISDN);Digital Subscriber Signalling System No. two (DSS2) protocol;Multiple Subscriber Number (MSN) supplementary service;Part 1: Protocol specification [ITU-T Recommendation Q.2951, clause 2 (1995), modified] (Endorsed by Asociación Espanola de Normalización in December of 2022.)

Die Norm herausgegeben am 1.12.2022