diff --git a/app.js b/app.js
index ab4b57b..702eb14 100644
--- a/app.js
+++ b/app.js
@@ -167,7 +167,6 @@ peers.on('connection', async socket => {
         callbackResponse = { 
           rtpCapabilities :videoCalls[callId].router.rtpCapabilities
         };
-        callback(callbackResponse);
       } else {
         console.log(`[createRoom] missing callId ${callId}`);
       }