Feature Codes Not Working


I have Asterisk 1.4 and FreePBX

I use x-lite client. While in a call I would like to do a blind transfer. None of the feature codes are accepted during a call. Also I would like to know If I can send feature codes without the other party hearing the beep sounds.

I read on forums that my dial plan may not support “*” but I checked and it looks like a normal dial plan NXXNXXXXXX

Any help will be appreciated!