How does the echo canceller interpret a signal when the ERL value is too low?
A.
The echo canceller treats the signal as echo and applies the configured values.
B.
The echo canceller considers the signal returning to the gateway as comfort noise generated during periods of silence and does not act on it.
C.
The echo canceller will apply the maximum echo-cancel coverage time to the signal to determine if this is echo or voice.
D.
The echo signal returning to the gateway is too loud and the echo canceller interprets it as normal voice instead of echo.