UNE-ETS 300058-3ED1

Integrated Services Digital Network (ISDN);Call Waiting (CW) supplementary service;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user (Endorsed by Asociación Espanola de Normalización in February of 2022.)

STANDARD published on 1.2.2022

Spanish -
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The information about the standard:

Designation standards: UNE-ETS 300058-3ED1
Publication date standards: 1.2.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Category: Technical standards UNE