public function testRefresh()
{
$params = new Catapult\Parameters();
$params->setFrom(new Catapult\PhoneNumber(__DEFAULT_SENDER__));
$params->setTo(new Catapult\PhoneNumber(__DEFAULT_RECEIVER__));
$call = new Catapult\Call();
$call->create($params);
$call->wait();
/* wait 5 seconds then
* refresh
*/
$call->refresh();
}