diff --git a/config.js b/config.js
index 2d2e42a95..d61461ba7 100644
--- a/config.js
+++ b/config.js
@@ -208,9 +208,12 @@ var config = {
 
     // Specify audio quality stereo and opusMaxAverageBitrate values in order to enable HD audio.
     // Beware, by doing so, you are disabling echo cancellation, noise suppression and AGC.
+    // Specify enableOpusDtx to enable support for opus-dtx where
+    // audio packets won’t be transmitted while participant is silent or muted.
     // audioQuality: {
     //     stereo: false,
     //     opusMaxAverageBitrate: null, // Value to fit the 6000 to 510000 range.
+    //     enableOpusDtx: false,
     // },
 
     // Video