SMS Delivery Report Identification

[jp4symbian]

I have developed an application which constantly detects incoming SMSs and sends SMSs in reply.
I need to know:

1. Is there any way to differentiate a normal SMS from a Delivery Report besides the 'iDescription' property which contains the text "Delivery report"?
   
   
2. How can I identify what the report indicates viz. Pending / Delivered?

I have checked the TSmsPDUType and TSmsClass of the Report SMS; but it is same as a normal SMS. So these cannot be used to differentiate.

I have searched all the posts in this forum regarding this issue but there is no proper concrete solution on any post!!

Does someone have the correct solution??