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ETSI I-ETS 300 245-5
- Integrated Services Digital Network (ISDN); Technical characteristics of telephony terminals; Part 5: Wideband (7 kHz) handset telephony
- standard by European Telecommunications Standards Institute, 12/01/1995
- Publisher: ETSI
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To standardise electro-acoustical characteristics for handset telephony terminals using CCITT G.722 coding