SMPP delivery report question

[Klaus Darilion]

Hi all!
Is it possible to influence the delivery reports which are generated by 
the SMSC after delivering the SMS to kannel?

I have the following setup (SMS->SIP gateway):
mobile    SMSC     kannel     SIP client     SIP client
 | (GSM)    | (SMPP)  |  (HTTP)   |   (SIP)     |
 |--SMS---> |         |           |             |
 |          |-submit->|           |             |
 |          |<-resp-- |           |             |
 |<-delivrd-|         |           |             |
 |   (x)    |         |--GET----->|             |
 |          |         |<--200 OK--|             |
 |          |         |           |--MESSAGE--->|
 |          |         |           |<-404 NotFnd-|
If the originator requests an SMS delivery report, the SMSC will report 
"successful delivery" right after kannel accepted the SMS (if I 
understand SMPP correct). But at this moment, the SMS is not delivered 
to its final destination. Thus, the delivery may fail (as in the 
scenario above) but the mobile user thinks that the SMS reached its 
destination.

Is there a way prevent the delivery report (x) but create them manually 
in kannel? Or any other solution for this problem?

thanks,
klaus