Getting lots of echo

HI just bought the iCallDroid and I live in Australia.

All functions is working fine i.e. incoming and outgoing. However, I am experiencing severe echo issues with the device.

SIP Phone I use is Yealink T20 and T38G.

In my "Configure Hardware", I have the tone region set to "Australia" and software cancellation software to "mg2". I've tried them all kb1, sec and sec2 and reboot the device and I am still having problems with echo.

Please advice any other options or parameter I can adjust to fix this echo problem.

Thanks.

try to flash with new firmware. On new release they add OSLEC echo cancelation. I think that will solve your problem.