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  4. Standard "UNE-EN 301255V1.2.1"
Standard UNE-EN 301255V1.2.1 1.10.2021 preview

UNE-EN 301255V1.2.1

Private Integrated Services Network (PISN);Inter-exchange signalling protocol;Message waiting indication supplementary service [ISO/IEC 15506 (2003), modified] (Endorsed by Asociación Espanola de Normalización in October of 2021.)

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STANDARD published on 1.10.2021


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The information about the standard:

Designation standards: UNE-EN 301255V1.2.1
Publication date standards: 1.10.2021
SKU: NS-1112056
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Category: Technical standards UNE

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Telephone networks

Latest update: 2026-09-09 (Number of items: 2 300 143)
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