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Specification of Dual Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 1: General
STANDARD published on 21.9.2000
Designation standards: ETSI ES 201235-1-V1.1.1
Publication date standards: 21.9.2000
SKU: NS-310821
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: European technical standard
Category: Technical standards ETSI
Latest update: 2026-01-23 (Number of items: 2 257 393)
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