/**
* Use this to query the current status of a SMS sent previously.
*
* The status will change from "queued" to "delivered"/"failed"
* after some time so you may need to query this a few times.
*
* @param string $txnRef Your own reference ID
*
* @return SMSTransaction Look at SMSTransaction for available information
* @throws HoiioException Error querying status of this SMS
*/
public function getSMSStatus($txnRef)
{
return SMSService::getStatus($this->appID, $this->accessToken, $txnRef);
}
