Configuring the echo adjustment function

1. Enter system view.

system-view

N/A

2. Enter E1/T1 interface view.

controller { e1 | t1 } slot-number

N/A

3. Create a TS set according to the selected signaling mode.

timeslot-set ts-set-number timeslot-list timeslots-list signal { e&m-delay | e&m-immediate | e&m-wink | fxo-ground | fxo-loop | fxs-ground | fxs-loop | r2 }

N/A

4. Exit E1/T1 interface view.

quit

N/A

5. Enter voice subscriber line view.

subscriber-line slot-number:ts-set-number

N/A

6. Enable the echo cancellation function.

echo-canceller enable

Enabled by default.

7. Configure echo duration.

echo-canceller tail-length milliseconds

Optional.

The default is 0 milliseconds.

8. Enable the nonlinear function of echo cancellation.

nlp-on

Optional.

Enabled by default.

This command takes effect only after the echo-canceller enable command is issued.