public function __construct($http_vals)
 {
     parent::init($http_vals);
     // maximum number of records fetched from phonesystem.
     $this->max_calls_to_fetch = 20;
     // use some default user if only password is set on smartvisu
     if (strlen($this->user) == 0 && strlen($this->pass) > 0) {
         $this->user = '******';
     }
 }