diff --git a/configuration.php b/configuration.php
index 7a35e17..20f53ec 100644
--- a/configuration.php
+++ b/configuration.php
@@ -34,7 +34,7 @@ class Configuration {
         ),
         'log' => array(
             'file' => 'c:\\logs\\ws_ipad.txt',
-            'active' => false,
+            'verbosity' => 0, // The greater the verbosity, the more is displayed
         ),
         'session' => array(
             'save_path' => ''
diff --git a/mobile.webservice.php b/mobile.webservice.php
index 4385bd5..5a1082a 100644
--- a/mobile.webservice.php
+++ b/mobile.webservice.php
@@ -27,7 +27,16 @@ abstract class WebService
 
     private $log = '';
 
-    public function log($message, $withTime = false) {
+    /**
+     * @param $message
+     * @param int $verbosity
+     * @param bool $withTime
+     */
+    public function log($message, $verbosity = 1, $withTime = false) {
+        if(Configuration::get('log.verbosity') < $verbosity) {
+            return;
+        }
+
         if($withTime) {
             $message = date("d-m-Y h:m:s").' '.$message;
         }
@@ -38,7 +47,7 @@ abstract class WebService
     public function Run()
     {
         $this->log("------------------");
-        $this->log("Start request", true);
+        $this->log("Start request", 1, true);
         $data = array();
 
         try {
@@ -48,14 +57,15 @@ abstract class WebService
             $data["error"]["code"] = $e->getCode();
             $data["error"]["name"] = $e->getName();
             $data["error"]["reason"] = $e->getMessage();
+            $this->log(sprintf("Failure : [%s] %s", $e->getCode(), $e->getName()));
         }
 
         $this->Send($data);
 
-        $this->log("Request finished", true);
+        $this->log("Request finished", 1, true);
         $this->log("------------------\n\n");
 
-        if(Configuration::get('log.active')) {
+        if(Configuration::get('log.verbosity') > 0) {
             file_put_contents(Configuration::get('log.file'), $this->log, FILE_APPEND | LOCK_EX);
         }
     }
@@ -93,6 +103,7 @@ abstract class WebService
         }
 
         $this->log("Calling '".$this->func."'");
+        $this->log("Params: ".print_r($params, true), 2);
         call_user_func_array(array($this, $this->func), $params);
     }
 
@@ -103,7 +114,7 @@ abstract class WebService
         ob_clean();
         flush();
 
-        $this->log("Data: ".print_r($data, true));
+        $this->log("Data: ".print_r($data, true), 2);
         echo json_encode($data);
     }
 }