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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.
Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 1: General
Standard published on 21.9.2000
Selected format:Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 2: Transmitters
Standard published on 21.9.2000
Selected format:Access and Terminals (AT); Specification of Dual-Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 2: Transmitters
Standard published on 6.5.2002
Selected format:Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 3: Receivers
Standard published on 21.9.2000
Selected format:Access and Terminals (AT); Specification of Dual-Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 3: Receivers
Standard published on 6.5.2002
Selected format:Access and Terminals (AT); Specification of Dual-Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 3: Receivers
Standard published on 13.3.2006
Selected format:Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 4: Receivers for use in Terminal Equipment for end-to-end signalling
Standard published on 21.9.2000
Selected format:Access and Terminals (AT); Specification of Dual-Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 4: Transmitters and Receivers for use in Terminal Equipment for end-to-end signalling
Standard published on 6.5.2002
Selected format:Access and Terminals (AT); Specification of Dual-Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 4: Transmitters and Receivers for use in Terminal Equipment for end-to-end signalling
Standard published on 13.3.2006
Selected format:Transmission and Multiplexing (TM); Passive optical components; Fibre optic mechanical splices for single-mode optical fibre communications systems; Common requirements and conformance testing
Standard published on 24.6.1999
Selected format:Latest update: 2026-07-26 (Number of items: 2 290 396)
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