When is a discrepancy report typically issued in the E911 data environment?

When is a discrepancy report typically issued in the E911 data environment?

• A. When a call is misrouted to the wrong PSAP.
• B. Initiated by the DBMSP when the service address for a customer is being updated in the E911 database and the address does not validate against the MSAG.
• C. When ALI data fails to load.
• D. When a caller reports a wrong number.

Answer: (B)

Discrepancy reports are generated when a customer’s service address update in the E911 database cannot be validated against the Master Street Address Guide. The MSAG is the authoritative reference that ties street addresses to the correct PSAP and routing. When the DBMSP processes an address update and the new service address fails validation against the MSAG, a discrepancy is created so the data can be corrected. This ensures ALI data aligns with the MSAG and that 9-1-1 calls are routed accurately. Other issues like a call being misrouted, ALI data failing to load, or a caller giving a wrong number are separate problems and do not inherently trigger a MSAG validation discrepancy.

Discrepancy reports are generated when a customer’s service address update in the E911 database cannot be validated against the Master Street Address Guide. The MSAG is the authoritative reference that ties street addresses to the correct PSAP and routing. When the DBMSP processes an address update and the new service address fails validation against the MSAG, a discrepancy is created so the data can be corrected. This ensures ALI data aligns with the MSAG and that 9-1-1 calls are routed accurately. Other issues like a call being misrouted, ALI data failing to load, or a caller giving a wrong number are separate problems and do not inherently trigger a MSAG validation discrepancy.