diff --git a/calls.php b/calls.php
new file mode 100644
index 000000000..c539f4f88
--- /dev/null
+++ b/calls.php
@@ -0,0 +1,70 @@
+#!/usr/bin/env php
+<?php
+/*
+Copyright 2016-2017 Daniil Gentili
+(https://daniil.it)
+This file is part of MadelineProto.
+MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+See the GNU Affero General Public License for more details.
+You should have received a copy of the GNU General Public License along with MadelineProto.
+If not, see <http://www.gnu.org/licenses/>.
+*/
+require_once 'vendor/autoload.php';
+if (file_exists('web_data.php')) {
+    require_once 'web_data.php';
+}
+
+echo 'Deserializing MadelineProto from session.madeline...'.PHP_EOL;
+$MadelineProto = false;
+try {
+    $MadelineProto = \danog\MadelineProto\Serialization::deserialize('session.madeline');
+} catch (\danog\MadelineProto\Exception $e) {
+}
+if (file_exists('.env')) {
+    echo 'Loading .env...'.PHP_EOL;
+    $dotenv = new Dotenv\Dotenv(getcwd());
+    $dotenv->load();
+}
+
+echo 'Loading settings...'.PHP_EOL;
+$settings = json_decode(getenv('MTPROTO_SETTINGS'), true) ?: [];
+
+if ($MadelineProto === false) {
+    echo 'Loading MadelineProto...'.PHP_EOL;
+    $MadelineProto = new \danog\MadelineProto\API($settings);
+    if (getenv('TRAVIS_COMMIT') == '') {
+        $checkedPhone = $MadelineProto->auth->checkPhone(// auth.checkPhone becomes auth->checkPhone
+            [
+                'phone_number'     => getenv('MTPROTO_NUMBER'),
+           ]
+        );
+        \danog\MadelineProto\Logger::log([$checkedPhone], \danog\MadelineProto\Logger::NOTICE);
+        $sentCode = $MadelineProto->phone_login(getenv('MTPROTO_NUMBER'));
+        \danog\MadelineProto\Logger::log([$sentCode], \danog\MadelineProto\Logger::NOTICE);
+        echo 'Enter the code you received: ';
+        $code = fgets(STDIN, (isset($sentCode['type']['length']) ? $sentCode['type']['length'] : 5) + 1);
+        $authorization = $MadelineProto->complete_phone_login($code);
+        \danog\MadelineProto\Logger::log([$authorization], \danog\MadelineProto\Logger::NOTICE);
+        if ($authorization['_'] === 'account.noPassword') {
+            throw new \danog\MadelineProto\Exception('2FA is enabled but no password is set!');
+        }
+        if ($authorization['_'] === 'account.password') {
+            \danog\MadelineProto\Logger::log(['2FA is enabled'], \danog\MadelineProto\Logger::NOTICE);
+            $authorization = $MadelineProto->complete_2fa_login(readline('Please enter your password (hint '.$authorization['hint'].'): '));
+        }
+        if ($authorization['_'] === 'account.needSignup') {
+            \danog\MadelineProto\Logger::log(['Registering new user'], \danog\MadelineProto\Logger::NOTICE);
+            $authorization = $MadelineProto->complete_signup($code, readline('Please enter your first name: '), readline('Please enter your last name (can be empty): '));
+        }
+        echo 'Serializing MadelineProto to session.madeline...'.PHP_EOL;
+        echo 'Wrote '.\danog\MadelineProto\Serialization::serialize('session.madeline', $MadelineProto).' bytes'.PHP_EOL;
+    } else {
+        $MadelineProto->bot_login(getenv('BOT_TOKEN'));
+    }
+}
+$MadelineProto->request_call('@manuel15');
+while (true) {
+    $MadelineProto->get_updates_difference();
+        echo 'Wrote '.\danog\MadelineProto\Serialization::serialize('session.madeline', $MadelineProto).' bytes'.PHP_EOL;
+}
diff --git a/fuzz/.gitkeep b/fuzz/.gitkeep
new file mode 100644
index 000000000..e69de29bb
diff --git a/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php b/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php
index e19eae5eb..aa63fc144 100644
--- a/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php
@@ -514,6 +514,9 @@ trait AuthKeyHandler
     private $temp_requested_secret_chats = [];
     private $secret_chats = [];
 
+    private $temp_requested_calls = [];
+    private $calls = [];
+
     public function accept_secret_chat($params)
     {
         $dh_config = $this->get_dh_config();
@@ -549,6 +552,24 @@ trait AuthKeyHandler
 
         return $res['id'];
     }
+    public function request_call($user)
+    {
+        $user = $this->get_info($user)['InputUser'];
+        \danog\MadelineProto\Logger::log(['Calling '.$user['user_id'].'...'], \danog\MadelineProto\Logger::VERBOSE);
+        $dh_config = $this->get_dh_config();
+        \danog\MadelineProto\Logger::log(['Generating a...'], \danog\MadelineProto\Logger::VERBOSE);
+        $a = new \phpseclib\Math\BigInteger($this->random(256), 256);
+        \danog\MadelineProto\Logger::log(['Generating g_a...'], \danog\MadelineProto\Logger::VERBOSE);
+        $g_a = $dh_config['g']->powMod($a, $dh_config['p']);
+        $this->check_G($g_a, $dh_config['p']);
+//        $res = $this->method_call('phone.requestCall', ['user_id' => $user, 'g_a' => $g_a->toBytes(), 'protocol' => ['_' => 'phoneCallProtocol', 'min_layer' => $this->settings['tl_schema']['layer'], 'max_layer' => $this->settings['tl_schema']['layer']]]);
+        $res = $this->method_call('phone.requestCall', ['user_id' => $user, 'g_a' => $g_a->toBytes(), 'protocol' => ['_' => 'phoneCallProtocol', 'min_layer' => 65, 'max_layer' => 65, 'udp_reflector' => true]]);
+        $this->temp_requested_calls[$res['phone_call']['id']] = $a;
+        $this->handle_pending_updates();
+        $this->get_updates_difference();
+
+        return $res['phone_call']['id'];
+    }
 
     public function complete_secret_chat($params)
     {