diff --git a/README.md b/README.md
index 95bcdb8..afd15a4 100644
--- a/README.md
+++ b/README.md
@@ -29,15 +29,22 @@ $ composer require "overtrue/easy-sms"
 use Overtrue\EasySms\EasySms;
 
 $config = [
-    'default' => 'error-log',
-    'shuffle_gateways' => true, 
-    'enabled_gateways' => ['yunpian', 'alidayu'],
+    'timeout' => 5.0,
+    'default' => [
+        'strategy' => \Overtrue\EasySms\Strategies\RandomStrategy::class,
+        'gateways' => [
+            'yunpian', 'alidayu',
+        ],
+    ],
     'gateways' => [
-        'error-log' => [
+        'errorlog' => [
             'file' => '/tmp/easy-sms.log',
         ],
         'yunpian' => [
-            'api_key' => '824f0ff2f71cab52936a13ede3xxxxx',
+            'api_key' => '824f0ff2f71cab52936axxxxxxxxxx',
+        ],
+        alidayu => [
+            //...
         ],
     ],
 ];
diff --git a/src/Contracts/StrategyInterface.php b/src/Contracts/StrategyInterface.php
new file mode 100644
index 0000000..273be4d
--- /dev/null
+++ b/src/Contracts/StrategyInterface.php
@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the overtrue/easy-sms.
+ * (c) overtrue <i@overtrue.me>
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Overtrue\EasySms\Contracts;
+
+/**
+ * Interface StrategyInterface.
+ */
+interface StrategyInterface
+{
+    /**
+     * Apply the strategy and return result.
+     *
+     * @param array $gateways
+     *
+     * @return array
+     */
+    public function apply(array $gateways);
+}
diff --git a/src/EasySms.php b/src/EasySms.php
index 80ee555..828fe7b 100644
--- a/src/EasySms.php
+++ b/src/EasySms.php
@@ -10,9 +10,9 @@
 namespace Overtrue\EasySms;
 
 use Closure;
-use InvalidArgumentException;
 use Overtrue\EasySms\Contracts\GatewayInterface;
-use Overtrue\EasySms\Contracts\MessageInterface;
+use Overtrue\EasySms\Contracts\StrategyInterface;
+use Overtrue\EasySms\Exceptions\InvalidArgumentException;
 use Overtrue\EasySms\Support\Config;
 use RuntimeException;
 
@@ -46,6 +46,11 @@ class EasySms
      */
     protected $messenger;
 
+    /**
+     * @var array
+     */
+    protected $strategies = [];
+
     /**
      * Constructor.
      *
@@ -65,14 +70,15 @@ public function __construct(array $config)
      *
      * @param string|array                                 $to
      * @param \Overtrue\EasySms\Contracts\MessageInterface $message
+     * @param array                                        $gateways
      *
      * @return array
      */
-    public function send($to, $message)
+    public function send($to, $message, array $gateways = [])
     {
         $messenger = $this->getMessenger();
 
-        return $messenger->send($to, $message, $this->getMessageGateways($message));
+        return $messenger->send($to, $message, $gateways);
     }
 
     /**
@@ -93,6 +99,34 @@ public function gateway($name = null)
         return $this->gateways[$name];
     }
 
+    /**
+     * Get a strategy instance.
+     *
+     * @param string|null $strategy
+     *
+     * @return StrategyInterface
+     */
+    public function strategy($strategy = null)
+    {
+        if (is_null($strategy)) {
+            $strategy = $this->config->get('default.strategy');
+        }
+
+        if (!class_exists($strategy)) {
+            $strategy = __NAMESPACE__.'\Strategies\\'.ucfirst($strategy);
+        }
+
+        if (!class_exists($strategy)) {
+            throw new InvalidArgumentException("Unsupported strategy \"{$strategy}\"");
+        }
+
+        if (!($this->strategies[$strategy] instanceof StrategyInterface)) {
+            $this->strategies[$strategy] = new $strategy($this);
+        }
+
+        return $this->strategies[$strategy];
+    }
+
     /**
      * Register a custom driver creator Closure.
      *
@@ -108,6 +142,14 @@ public function extend($name, Closure $callback)
         return $this;
     }
 
+    /**
+     * @return \Overtrue\EasySms\Support\Config
+     */
+    public function getConfig()
+    {
+        return $this->config;
+    }
+
     /**
      * Get default gateway name.
      *
@@ -146,36 +188,6 @@ public function getMessenger()
         return $this->messenger ?: $this->messenger = new Messenger($this);
     }
 
-    /**
-     * @param \Overtrue\EasySms\Contracts\MessageInterface $message
-     *
-     * @return array
-     */
-    protected function getMessageGateways(MessageInterface $message)
-    {
-        $gateways = [];
-
-        foreach ($message->getGateways() as $gateway => $setting) {
-            if (is_integer($gateway) && is_string($setting)) {
-                $gateway = $setting;
-                $setting = [];
-            }
-            $globalSetting = $this->config->get("gateways.{$gateway}", []);
-
-            if (is_string($gateway) && !empty($globalSetting)) {
-                $gateways[$gateway] = array_merge($globalSetting, (array) $setting);
-            }
-        }
-
-        if ($this->config->get('shuffle_gateways')) {
-            uasort($gateways, function () {
-                return mt_rand() - mt_rand();
-            });
-        }
-
-        return $gateways;
-    }
-
     /**
      * Create a new driver instance.
      *
@@ -247,17 +259,4 @@ protected function callCustomCreator($gateway)
     {
         return call_user_func($this->customCreators[$gateway], $this->config->get($gateway, []));
     }
-
-    /**
-     * Dynamically call the default gateway instance.
-     *
-     * @param string $method
-     * @param array  $parameters
-     *
-     * @return mixed
-     */
-    public function __call($method, $parameters)
-    {
-        return call_user_func_array([$this->gateway(), $method], $parameters);
-    }
 }
diff --git a/src/Exceptions/InvalidArgumentException.php b/src/Exceptions/InvalidArgumentException.php
new file mode 100644
index 0000000..4378d43
--- /dev/null
+++ b/src/Exceptions/InvalidArgumentException.php
@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This file is part of the overtrue/easy-sms.
+ * (c) overtrue <i@overtrue.me>
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Overtrue\EasySms\Exceptions;
+
+/**
+ * Class InvalidArgumentException.
+ */
+class InvalidArgumentException extends \InvalidArgumentException
+{
+}
diff --git a/src/Messenger.php b/src/Messenger.php
index ec9a63a..eb5e446 100644
--- a/src/Messenger.php
+++ b/src/Messenger.php
@@ -10,13 +10,30 @@
 namespace Overtrue\EasySms;
 
 use Overtrue\EasySms\Contracts\MessageInterface;
-use Overtrue\EasySms\Support\Config;
 
 /**
  * Class Messenger.
  */
 class Messenger
 {
+    const STATUS_SUCCESS = 'success';
+    const STATUS_ERRED = 'erred';
+
+    /**
+     * @var \Overtrue\EasySms\EasySms
+     */
+    protected $easySms;
+
+    /**
+     * Messenger constructor.
+     *
+     * @param \Overtrue\EasySms\EasySms $easySms
+     */
+    public function __construct(EasySms $easySms)
+    {
+        $this->easySms = $easySms;
+    }
+
     /**
      * Send a message.
      *
@@ -29,20 +46,62 @@ class Messenger
     public function send($to, MessageInterface $message, array $gateways = [])
     {
         if (!($message instanceof MessageInterface)) {
-            $message = new Message(['content' => $message, 'template' => $message]);
+            $message = new Message([
+                'content' => $message,
+                'template' => $message,
+            ]);
         }
 
-        $result = [];
+        $results = [];
 
-        foreach ($gateways as $gateway => $config) {
+        if (empty($gateways)) {
+            $gateways = $message->getGateways();
+        }
+
+        $gateways = $this->formatGateways($gateways);
+        $strategyAppliedGateways = $this->easySms->strategy()->apply($gateways);
+
+        foreach ($strategyAppliedGateways as $gateway) {
             try {
-                $result[$gateway] = $this->gateway($gateway)->send($to, $message, new Config($config));
+                $result[$gateway] = [
+                        'status' => self::STATUS_SUCCESS,
+                        'result' => $this->easySms->gateway($gateway)->send($to, $message, new Config($gateways[$gateway])),
+                    ];
             } catch (GatewayErrorException $e) {
-                $result[$gateway] = $e;
+                $result[$gateway] = [
+                    'status' => self::STATUS_ERRED,
+                    'exception' => $e,
+                ];
                 continue;
             }
         }
 
-        return false;
+        return $results;
+    }
+
+    /**
+     * @param array $gateways
+     *
+     * @return array
+     */
+    protected function formatGateways(array $gateways)
+    {
+        $formatted = [];
+        $config = $this->easySms->getConfig();
+
+        foreach ($gateways as $gateway => $setting) {
+            if (is_integer($gateway) && is_string($setting)) {
+                $gateway = $setting;
+                $setting = [];
+            }
+
+            $globalSetting = $config->get("gateways.{$gateway}", []);
+
+            if (is_string($gateway) && !empty($globalSetting) && is_array($setting)) {
+                $formatted[$gateway] = array_merge($globalSetting, $setting);
+            }
+        }
+
+        return $formatted;
     }
 }
diff --git a/src/Strategies/RadomStrategy.php b/src/Strategies/RadomStrategy.php
new file mode 100644
index 0000000..b546028
--- /dev/null
+++ b/src/Strategies/RadomStrategy.php
@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the overtrue/easy-sms.
+ * (c) overtrue <i@overtrue.me>
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Overtrue\EasySms\Strategies;
+
+use Overtrue\EasySms\Contracts\StrategyInterface;
+
+/**
+ * Class RandomStrategy.
+ */
+class RandomStrategy implements StrategyInterface
+{
+    /**
+     * @param array $gateways
+     *
+     * @return array
+     */
+    public function apply(array $gateways)
+    {
+        uasort($gateways, function () {
+            return mt_rand() - mt_rand();
+        });
+
+        return $gateways;
+    }
+}
diff --git a/tests/EasySmsTest.php b/tests/EasySmsTest.php
index b9ac97a..cf4a5b5 100644
--- a/tests/EasySmsTest.php
+++ b/tests/EasySmsTest.php
@@ -73,14 +73,20 @@ public function testExtend()
     public function testSend()
     {
         $message = new Message(['content' => 'hello']);
-        $config = new Config();
 
         $easySms = \Mockery::mock(EasySms::class.'[getMessenger]', [['default' => DummyGatewayForTest::class]]);
         $messenger = \Mockery::mock(Messenger::class);
         $messenger->shouldReceive('send')->with('mock-number', $message, [])->andReturn('send-result');
         $easySms->shouldReceive('getMessenger')->andReturn($messenger);
 
-        $this->assertSame('send-result', $easySms->send('mock-number', $message, $config));
+        $this->assertSame('send-result', $easySms->send('mock-number', $message, []));
+    }
+
+    public function testGetMessenger()
+    {
+        $easySms = new EasySms([]);
+
+        $this->assertInstanceOf(Messenger::class, $easySms->getMessenger());
     }
 }