A method of multiplexing one or more dc telegraph channels onto a nominal 4-kHz voice frequency channel . ( 188 ) Synonym voice frequency carrier telegraph.
VOICE FREQUENCY TELEGRAPH (VFTG)
Meaning of VOICE FREQUENCY TELEGRAPH (VFTG) in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012