The sound of the speaker's own voice (and background noise ) as heard in the speaker's telephone receiver. ( 188 ) Note: Sidetone volume is usually suppressed relative to the transmitted xxvolume. Synonym telephone sidetone.
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SIDETONE
Meaning of SIDETONE in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012