Business Telecommunications (BT); Approval requirements for complex customer premises apparatus and installations connected to the Public ISDN (including principles for the application of the essential requirements to any apparatus)

Standard published on 24.9.1991

Business TeleCommunications (BTC); Virtual Private Networking (VPN); Services and networking aspects; Standardization requirements and work items

Standard published on 26.9.1995

Business TeleCommunications (BTC); Virtual Private Networking (VPN); Services and networking aspects; Standardization requirements and work items

Standard published on 15.3.1996

Permissioned Distributed Ledger (PDL); Trustworthy Data Space Infrastructure with PDL

Standard published on 18.9.2025

Fifth Generation Fixed Network (F5G); Test Specification for PON Based Industrial Network

Standard published on 21.4.2026

Experiential Networked Intelligence (ENI); Requirements and Detailed Procedure of Network Policy Conflict Detection

Standard published on 16.7.2024

Network Functions Virtualisation (NFV) Release 4; Management and Orchestration; Report on Architectural enhancement for VNF License Management support and use of VNF licenses

Standard published on 22.10.2021

Security Algorithms Group of Experts (SAGE); Rules for the management of the Baras algorithm

Standard published on 30.11.1995

Equipment Engineering (EE); Environmental engineering; Guidance and terminology

Standard published on 7.7.1992

Operational energy Efficiency for Users (OEU); Data interoperability format with applications for connected buildings

Standard published on 19.2.2024