SMS Delivery Status Report


I develop a sms server right now,
does anyone know how to request the delivery status report from my phone?
My phone doesn't support AT+CSMP ( I read that some people use it to get the delivery status report )

Further question :
how about the delivery status pdu format?
I tried to parse it like an ordinary pdu header,
but it's not working.
Does anyone know it's format?

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Hi winart, 
will explain the PDU format message.

and you will need to change TP-SRR bit explained on the following link....


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