[Freeswitch-users] Delay in conference

I had a conference in FreeSWITCH with a few of my friends, and one of my friends complained that when I talked, at every pause I had in my talk, the first word in my sentence was cut off. When no one is talking, there is completely slience. Is this behaviour configurable? I saw something in conference.conf.xml which is called comfort-noise, maybe that is what I should use to tune this? Ivan