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
NORMA vydaná dňa 13.3.2006
Designation standards: ETSI ES 201235-4-V1.3.1
Publication date standards: 13.3.2006
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: European technical standard
Kategória: Technické normy ETSI