Terminal Equipment (TE); Integrated Services Digital Network (ISDN); B-Channel Aggregation Unit (CAU); Procedures and terminal requirements (Endorsed by AENOR in November of 2006.)

Die Norm herausgegeben am 1.11.2006

Integrated Services Digital Network (ISDN);ISDN - Global System for Mobile communications (GSM) Public Land Mobile Network (PLMN) signalling interface;Test specification (Endorsed by Asociación Espanola de Normalización in September of 2022.)

Die Norm herausgegeben am 1.9.2022

Terminal Equipment (TE);Integrated Services Digital Network (ISDN);Multipoint communications for audiovisual services;Main functionalities and basic requirements for Multipoint Control Units (MCUs) (Endorsed by Asociación Espanola de Normalización in September of 2022.)

Die Norm herausgegeben am 1.9.2022

Transmission and Multiplexing (TM);Synchronous Digital Hierarchy (SDH) network information model;Connection supervision function (Higher order Connection Supervision / Lower order Connection Supervision (HCS/LCS)) for the Network Element (NE) view (Endorsed by Asociación Espanola de Normalización in September of 2022.)

Die Norm herausgegeben am 1.9.2022

Integrated Services Digital Network (ISDN);Definition and usage of cause and location in Digital Subscriber Signalling System No. one (DSS1) and Signalling System No.7 ISDN User Part (ISUP) [ITU-T Recommendation Q.850 (1993), modified] (Endorsed by Asociación Espanola de Normalización in September of 2022.)

Die Norm herausgegeben am 1.9.2022

Integrated Services Digital Network (ISDN); Definition and usage of cause and location in Digital Subscriber Signalling System No. one (DSS1) and Signalling System No.7 ISDN User Part (ISUP) [ITU-T Recommendation Q.850 (1998), modified] (Endorsed by AENOR in November of 2008.)

Die Norm herausgegeben am 1.11.2008

Integrated Services Digital Network (ISDN); Definition and usage of cause and location in Digital Subscriber Signalling System No. one (DSS1) and Signalling System No. 7 (SS7) ISDN User Part (ISUP) [ITU-T Recommendation Q.850 (1998) with addendum modified] (Endorsed by AENOR in November of 2008.)

Die Norm herausgegeben am 1.11.2008

Broadband Integrated Services Digital Network (B-ISDN);Meta-signalling protocol;Part 1: Protocol specification [ITU-T Recommendation Q.2120 (1995), modified] (Endorsed by Asociación Espanola de Normalización in September of 2022.)

Die Norm herausgegeben am 1.9.2022

Satellite Earth Stations and Systems (SES); Receive-Only Mobile Earth Stations (ROMES) operating in the 1,5 GHz band providing data communications; Radio Frequency (RF) specifications (Endorsed by AENOR in May of 2005.)

Die Norm herausgegeben am 1.5.2005

Satellite Earth Stations and Systems (SES); Receive-Only Mobile Earth Stations (ROMES) operating in the 1,5 GHz band providing data communications; Radio Frequency (RF) specifications (Endorsed by AENOR in May of 2005.)

Änderung herausgegeben am 1.5.2005