diff --git a/JitsiConference.js b/JitsiConference.js
index 4196633113..6aad54e210 100644
--- a/JitsiConference.js
+++ b/JitsiConference.js
@@ -2478,9 +2478,7 @@ JitsiConference.prototype.dial = function(number) {
         return this.room.dial(number);
     }
 
-    return new Promise((resolve, reject) => {
-        reject(new Error('The conference is not created yet!'));
-    });
+    return Promise.reject(new Error('The conference is not created yet!'));
 };
 
 /**
@@ -2491,9 +2489,7 @@ JitsiConference.prototype.hangup = function() {
         return this.room.hangup();
     }
 
-    return new Promise((resolve, reject) => {
-        reject(new Error('The conference is not created yet!'));
-    });
+    return Promise.resolve();
 };
 
 /**