queued :
This means that the SMS you have sent has been queued internally for delivery.
sending :
This means the SMS has been pushed by Exotel to the SMS Gateway and we're yet to receive the success/failed status.
submitted :
This means that the SMS you have sent has been submitted from our system to SMS Gateway.
sent :
The SMS was successfully delivered to the recipient.
failed_dnd :
The delivery of the SMS failed because the number belongs to the TRAI NCPR list. This is applicable only for promotional SMS.
failed :
The delivery of the SMS failed because of the following reasons.
- Telecom services not providing service for the particular number.
- End user has enabled message barring system.
- SMS got expired after multiple re-try.
- Failed to process the message at operator level.
- Handset doesn’t support for the incoming messages.
- Handset failed to get complete message.
- Problem with Handset.
- Subscriber is in busy condition.
- Failed to locate the number in HLR database.
- Handset memory full.
- Mobile handset switched off.
- Subscriber’s operator not supported.
- Gateway mobile switching error.
- Given input was not recognized at subscriber’s operator level.
- Submission error or invalid input data.
- SMS is in retry state for the delivery.
- SMS delivery failed since handset is not in good condition.