03.40 9.2.3.6TP-Message-Reference (TP-MR)
The SMS-STATUS-REPORT also contains a TP-Message-Reference field. The value sent
to the MS will be the sameas the TP-Message-Reference value generated by the MS
in the earlier SMS-SUBMIT or SMS-COMMAND to whichthe status report relates.
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Regards,
Alexander Chemeris.
CEO, Fairwaves, Inc. / ООО УмРадио
https://fairwaves.co