A supervisory signal returned from the called telephone to the originating switch when the call receiver answers. Note 1: The answer signal stops the ringback signal from being returned to the caller. Note 2: The answer signal is returned by means of a closed loop .
ANSWER SIGNAL
Meaning of ANSWER SIGNAL in English
Telecommunication standard terms English vocab. Английский словарь стандартных телекоммуникационных терминов. 2012