Delivery receipts let you know whether a message has been delivered. We forward them to you by making an HTTP request to a URL of your choice.
It takes around 30 minutes for delivery receipt changes to apply to your API account.
The mediaburst Message ID returned when you sent the message.
Phone number the message was sent to
Delivery status of the message.
The detail code provides more information on why a message has failed. Sometimes the mobile network doesn’t provide a reason, in these cases it will be set to unknown (1).
http://www.example.com/sms-dlr? msg_id=AB_12345&status=DELIVRD&err_code=0&to=441234567890
You might find our Mobile site useful.