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ETSI - European Telecommunication Standard Institute(ETSI) produces globally-applicable standards for information and telecommunication technologies (ICT) including land, mobile, radio, converged, broadcast and internet technologies.
Public Switched Telephone Network (PSTN); Messages and formats for push-button dialling [CEPT Recommendation T/CS 28-01 E (1980)]
Standard published on 15.9.1995
Selected format:Access and Terminals (AT); Harmonized basic attachment requirements for Terminals for connection to analogue interfaces of the Telephone Networks; Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017; Part 1: General aspects
Standard published on 10.8.2005
Selected format:Access and Terminals (AT); Harmonized basic attachment requirements for Terminals for connection to analogue interfaces of the Telephone Networks; Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017; Part 2: Basic transmission and protection of the network from harm
Standard published on 10.8.2005
Selected format:Access and Terminals (AT); Harmonized basic attachment requirements for Terminals for connection to analogue interfaces of the Telephone Networks; Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017; Part 2: Basic transmission and protection of the network from harm
Standard published on 27.1.2006
Selected format:Access and Terminals (AT); Harmonized basic attachment requirements for Terminals for connection to analogue interfaces of the Telephone Networks; Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017; Part 3: Basic Interworking with the Public Telephone Networks
Standard published on 10.8.2005
Selected format:Access and Terminals (AT); Harmonized basic attachment requirements for Terminals for connection to analogue interfaces of the Telephone Networks; Update of the technical contents of TBR 021, EN 301 437, TBR 015, TBR 017; Part 3: Basic Interworking with the Public Telephone Networks
Standard published on 27.1.2006
Selected format:Methods for Testing and Specification (MTS); The Testing and Test Control Notation version 3; TTCN-3 Language Extensions: Advanced Matching
Standard published on 5.7.2017
Selected format:Methods for Testing and Specification (MTS); The Testing and Test Control Notation version 3; TTCN-3 extension: Advanced Matching
Standard published on 16.5.2018
Selected format:Methods for Testing and Specification (MTS); The Testing and Test Control Notation version 3; TTCN-3 Language Extensions: Advanced Matching
Standard published on 11.4.2019
Selected format:Methods for Testing and Specification (MTS); The Testing and Test Control Notation version 3; TTCN-3 Language extension: Advanced Matching
Standard published on 4.5.2020
Selected format:Latest update: 2026-01-17 (Number of items: 2 256 397)
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