Hello group, We have setup a new conference service and it works well, except for some complaints here and there about the voice quality; I was then wondering what are the recommended values for comfort noise and energy level as per your experience for conferences? My feeling is that comfort noise should be disabled but I am unsure about the energy level; is this a try and see parameter, or should it ideally simply be set to 0 or a small value for a conference call system? Presently: <profile name="confmodreception"> <param name="domain" value="$${domain}"/> <param name="rate" value="16000"/> <param name="ivr-dtmf-timeout" value="2000"/> <param name="interval" value="20"/> <param name="caller-controls" value="reception"/> <param name="moderator-controls" value="reception"/> <param name="energy-level" value="200"/> <param name="alone-sound" value="conference/conf-alone.wav"/> <!-- <param name="moh-sound" value="silence"/> --> <param name="comfort-noise" value="true"/> <param name="suppress-events" value="start-talking,stop-talking,energy-level,volume-level,gain-level,energy-level-member,play-file,floor-change,play-file-done,play-file-member"/> <param name="enter-sound" value="tone_stream://%(200,0,500,600,700)"/> <param name="exit-sound" value="tone_stream://%(500,0,300,200,100,50,25)"/> <param name="muted-sound" value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-muted.wav"/> <param name="unmuted-sound" value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-unmuted.wav"/> <param name="terminate-on-silence" value="120"/> <param name="locked-sound" value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-locked.wav"/> <param name="is-locked-sound" value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-is-locked.wav"/> <param name="is-unlocked-sound" value="/usr/local/freeswitch/sounds/fr/ca/june/conference/16000/conf-is-unlocked.wav"/> </profile>