In the public regulated telecommunications services, a service grade that is described in part 68 , Title 47 of the Code of Federal Regulations [CFR] . Note: Voice-grade service does not imply any specific signaling or supervisory scheme.
VOICE GRADE
Meaning of VOICE GRADE in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012