diff --git a/html5/verto/js/src/jquery.verto.js b/html5/verto/js/src/jquery.verto.js
index 21e0d2e5bf..9a9ccc9fe5 100644
--- a/html5/verto/js/src/jquery.verto.js
+++ b/html5/verto/js/src/jquery.verto.js
@@ -1963,7 +1963,7 @@
dialog.rtc = new $.FSRTC({
callbacks: RTCcallbacks,
localVideo: dialog.localVideo,
- useVideo: dialog.videoStream,
+ useVideo: dialog.params.useVideo ? dialog.videoStream : null,
useAudio: dialog.audioStream,
useStereo: dialog.params.useStereo,
videoParams: dialog.params.videoParams,
diff --git a/html5/verto/video_demo/js/verto-min.js b/html5/verto/video_demo/js/verto-min.js
index 8235c77def..d88e62b9ce 100644
--- a/html5/verto/video_demo/js/verto-min.js
+++ b/html5/verto/video_demo/js/verto-min.js
@@ -1,5 +1,5 @@
-var iceTimerSent=0;var iceTimerCompleted=0;var iceTimer;(function($){function findLine(sdpLines,prefix,substr){return findLineInRange(sdpLines,0,-1,prefix,substr);}
+(function($){function findLine(sdpLines,prefix,substr){return findLineInRange(sdpLines,0,-1,prefix,substr);}
function findLineInRange(sdpLines,startLine,endLine,prefix,substr){var realEndLine=(endLine!=-1)?endLine:sdpLines.length;for(var i=startLine;i