UNE-ETS 300141-4ED1

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 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 300141-4ED1
Publication date standards: 1.3.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Category: Technical standards UNE