Adds 'enableLipSync' and 'audioPacketDelay' config options

modules/xmpp/moderator.js

@@ -174,6 +174,20 @@ Moderator.prototype.createConferenceIq =  function () {
                 value: true
             }).up();
     //}
+    if (this.options.conference.enableLipSync !== undefined) {
+        elem.c(
+            'property', {
+                name: 'enableLipSync',
+                value: this.options.conference.enableLipSync
+            }).up();
+    }
+    if (this.options.conference.audioPacketDelay !== undefined) {
+        elem.c(
+            'property', {
+                name: 'audioPacketDelay',
+                value: this.options.conference.audioPacketDelay
+            }).up();
+    }
     if (this.options.conference.startBitrate) {
         elem.c(
             'property', {

modules/xmpp/strophe.jingle.js

@@ -34,7 +34,8 @@ module.exports = function(XMPP, eventEmitter) {
                 disco.addFeature('urn:xmpp:jingle:apps:rtp:video');
 
                 // Lipsync
-                if (RTCBrowserType.isChrome()) {
+                if (this.options.enableLipSync && RTCBrowserType.isChrome()) {
+                    logger.info("Lip-sync enabled !");
                     this.connection.disco.addFeature(
                         'http://jitsi.org/meet/lipsync');
                 }