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Use this hook to inspect a SUBMIT_SM_RESP from a remote SMSC. In this hook you can use any business logic to handle a response to a MT submission but an intuitive utilization of this hook is to initiate a requeue/retry of a failed MT submission based on the response status code.

If users would like to correlate a future MO reception—a delivery receipt, to an MT submission in order to implement their own business logic, use this hook to store the message_id carried in the response message so that you can find the matching delivery receipt.

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