public function account($mustInit = true)
    {
        if ($mustInit) $this->_init();

        $params = array(
            'api' => $this->api_key,
        );

        $query = http_build_query($params);

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, Config::get('semaphore::url.sms.account') . '?' . $query);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $response = curl_exec($ch);
        curl_close($ch);

        return $response;
    }