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| | |-+  SMSC-HLR interaction
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Author Topic: SMSC-HLR interaction  (Read 323 times)
nagesh.kumar
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« on: April 30, 2007, 09:17:44 UTC »

Hi Experts,

Does SMSC need to inform HLR mandatorily with MAP_REPORT_SM_DELIVERY_STATUS message - after receiving MAP_MT_FSM (either Success or Failure)?

What is HLR's behavior if it does NOT receive MAP_REPORT_SM_DELIVERY_STATUS (after GMSC does MAP_SRISM and successfully delivers the SMS)?

Regards
Nagesh
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dineshonsms
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« Reply #1 on: May 04, 2007, 20:52:34 UTC »

MAP_REPORT_SM_DELIVERY_STATUS is used to set the Message Waiting Data into the HLR or to inform the HLR of successful SM transfer after polling.
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nagesh.kumar
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« Reply #2 on: May 08, 2007, 12:56:45 UTC »

Hi Dinesh and experts,

Thanks for your reply.

I understand that SMSC sends MAP_REPORT_SM_DELIVERY_STATUS, in case MAP_MT_FSM fails so that SMSC gets added to MWD at HLR. This enables SMSC to get a future alert.

I still could not gather why does SMSC need to send MAP_REPORT_SM_DELIVERY_STATUS to HLR, when MAP_MT_FSM succeeds. As per the standards, if MAP_REPORT_SM_DELIVERY_STATUS indicates success, HLR invokes AlertSC procedures. If the mobile were to have been temporarily unreachable earlier and became reachable now, the VMSC/VLR would have any way sent MAP_READY_FOR_SM to HLR,  triggering the alert procedures. Why does SMSC need to send MAP_REPORT_SM_DELIVERY_STATUS under Success conditions?

Thanks a lot for your time in clarifying the same.

Regards
Nagesh
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pramod
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« Reply #3 on: June 13, 2007, 18:42:11 UTC »

i dont think it is needed MAP_REPORT_SM_DELIVERY_STATUS  in case  of success case but if it is needed it means that inorder to reset the MWD flag in HLR it is already set in HLR.
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