The echo cancellation is used to remove echo from a voice communication in order to improve voice quality on a telephone call. In addition to improving quality, this process improves bandwidth savings achieved through silence suppression by preventing echo from travelling across a network.
Using echo cancellation on analog modem / G3 fax calls (voice-frequency data) may cause data corruption.
To show or to change the Echo Cancellation, run a terminal program or a telnet session
Use the command at+thrane, and log in as admin - passw. 1234
Use the command stat -m pabx -l full, to show the state of the Echo Cancellation.
By default the Echo cancellation is enabled!
To disable the Echo Cancellation use the command pabx SLIC_00 -e 0 or, for second RJ11 interface on an Explorer 700, pabx SLIC_01 -e 0
To enable the Echo Cancellation use the command pabx SLIC_00 -e 1 or, for second RJ11 interface on an Explorer 700, pabx SLIC_01 -e 1