H3C Technologies H3C MSR 50 - Manual (Page 745)

360
Symptom Parameters adjusted Effect
There are loud environment
noises. Increase the maximum
amplitude of comfortable noises. Too large amplitude might make noises
uncomfortable.
A user hears his or her voice
when speaking. Enlarge the control factor of
mixed proportion of noises. Too high a control factor leads to audio
discontinuity.
There are echoes when both
parties speak at the same time. Enlarge the judgment threshold
for bidirectional conversation.
Too high a judgment threshold slows
down the convergence of the filter
factor.
Enabling the nonlinear function of echo cancellation
The nonlinear function of echo cancellation, also known as residual echo suppression, means the
removal of residual echoes after echo cancellation when the user at the local end does not speak.
Line management configuration
Select Voice Management > Line Management from the navigation tree to access the line list page, as
show in Figure 746 .
Figure 746 Line list page
Configuring an FXS voice subscriber line
Select Voice Management > Line Management from the navigation tree, and then click the icon of
the FXS line to be configured to access the FXS line configuration page, as show in Figure 747 .