ETSI TR 101 767-2000 Human Factors (HF); Symbols to Identify Telecommunications Facilities for Deaf and Hard of Hearing People; Development and Evaluation (V1.1.1)
European Telecommunications Standards Institute (ETSI)
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ETSI TR 101 767-2000
ETSI TR 101 767-2000 history
2000ETSI TR 101 767-2000 Human Factors (HF); Symbols to Identify Telecommunications Facilities for Deaf and Hard of Hearing People; Development and Evaluation (V1.1.1)