2.18.8 IDP Query

IDP query features:

• Message flow for INPQ Solution on vSTP.
• MSC will send INPQ request to vSTP-MP over SS7 links.
  • vSTP-MP will decode and verify the INPQ Message.
  • vSTP-MP will decode and verify the INPQ Message.
  • Check whether INPQ message has valid request (the requestedInfo parameter must be MNP Requested Info and/or Location Information).
  • Decode the MSISDN parameter from the Subscriber Identity parameter.
  • Condition the MSISDN to the international format.
• vSTP-MP will query the UDR NOAM for conditional MSISDN DB.
• UDR NOAM will look up MSISDN DB and will send response to the vSTP-MP.
• Determine whether the lookup is considered to be successful based on provisioned options. If yes, use entity information to encode INPQ ACK response and route the response to the originator. If no, send INPQ NACK response with appropriate error code.