[Freeswitch-users] disturbance in conference

Hello there, We tried to do conference call using freeswitch that time i heard some disturbance but how can we remove that disturbance.So which parameter need to set for clear sound. We find the solution but how to configure that solution in freeswitch.We have find solution in below link. https://wiki.freeswitch.org/wiki/VAD_and_CNG