UNE-ETS 300121ED1

Integrated Services Digital Network (ISDN);Application of the ISDN User Part (ISUP) of CCITT Signalling System No.7 for international ISDN interconnections (ISUP version 1) (Endorsed by Asociación Espanola de Normalización in March of 2022.)

STANDARD published on 1.3.2022

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The information about the standard:

Designation standards: UNE-ETS 300121ED1
Publication date standards: 1.3.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Category: Technical standards UNE