Backgroud noise and disturbances


i use asterisk1.2 with tdm2400e. i have configured and every thing works fine. i use g729 codec. i am hearing a nbackground noise (like waving sound) and some disturbances in middle. i shall be if you can provide soe infom will be much helpfull to rectify the same.

IP phone granstream.

I’m having similar noise problems, burst of noise about very 5 seconds and occasional bad codec calls. Happens with Slackware 10.2, 2.4 kernel. I’m going to be turning the kernel and eliminate all unecessary modules to see if that fixes it.


what are mdoules needs to be removed and corrected and how to tune the kernel?