What is the purpose of the Location Validation Function (LVF) in E911 networks?

• A. Ensures that calls entering the ESInet origination network contain a routable civic location.
• B. Validates MSAG addresses are current.
• C. Performs billing and call routing.
• D. Stores emergency incident data locally.

Answer: (A)

The Location Validation Function focuses on making sure the civic location data that comes with a 9-1-1 call entering the ESInet can actually be used to locate and route the call. It checks that a complete, properly formatted civic address is present and that it is routable within the NG9-1-1 infrastructure. By verifying routability, LVF ensures the correct ALI lookup and accurate delivery to the appropriate PSAP boundary, preventing misrouting or data that cannot be acted upon. If location data fails validation, it signals issues so the call can be corrected or handled through a fallback process. This is why the purpose is about ensuring a routable civic location; other options relate to MSAG maintenance, billing/call handling, or storing incident data, which are outside LVF’s role.