diff --git a/lib/Ratchet/Application/WAMP/App.php b/lib/Ratchet/Application/WAMP/App.php
index e0f79d9..a1c6f32 100644
--- a/lib/Ratchet/Application/WAMP/App.php
+++ b/lib/Ratchet/Application/WAMP/App.php
@@ -64,7 +64,9 @@ class App implements WebSocketAppInterface {
             break;
 
             case 2:
-                return $this->_app->onCall($from, $json[1], $json[2]);
+                array_shift($json);
+                array_unshift($json, $from);
+                return call_user_func_array(array($this->_app, 'onCall'), $json);
             break;
 
             case 5:
diff --git a/lib/Ratchet/Application/WAMP/Command/Action/Event.php b/lib/Ratchet/Application/WAMP/Command/Action/Event.php
index 2f4a389..77bc270 100644
--- a/lib/Ratchet/Application/WAMP/Command/Action/Event.php
+++ b/lib/Ratchet/Application/WAMP/Command/Action/Event.php
@@ -12,6 +12,6 @@ class Event extends SendMessage {
      * @param string
      */
     public function setEvent($uri, $msg) {
-        $this->setMessage(json_encode(array(8, $uri, (string)$msg)));
+        return $this->setMessage(json_encode(array(8, $uri, (string)$msg)));
     }
 }
\ No newline at end of file
diff --git a/lib/Ratchet/Application/WAMP/ServerInterface.php b/lib/Ratchet/Application/WAMP/ServerInterface.php
index 86b3df6..b636f2d 100644
--- a/lib/Ratchet/Application/WAMP/ServerInterface.php
+++ b/lib/Ratchet/Application/WAMP/ServerInterface.php
@@ -35,7 +35,7 @@ interface ServerInterface {
      * @param ...
      * @return Ratchet\Resource\Command\CommandInterface|null
      */
-    function onCall(Connection $conn, $callID, $uri);
+    function onCall();
 
     /**
      * A request to subscribe to a URI has been made