prBAS ETS 300 138-4 V:2027

Integrated Services Digital Network (ISDN); Closed User Group (CUG) 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

General information

Status:Project

Number of pages:0

Adoption method:Proglašavanje

Edition:1.

Realization date:03.11.2026

Forseen date for next stage code:10.11.2026

Technical committee:BAS/TC 65, VS3 - Standardization in the field of telecommunications

Abstract

Lifecycle

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Original document and degree of correspondence

ETS 300 138-4 V:1997, identical

Work material

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