This disclosure describes techniques to accurately determine a user’s home location for use in voice over WiFi (VoWiFi) emergency calls. Per techniques of this disclosure, with user permission, a user’s home location is determined on a user device based on location information and corresponding time signatures associated with the locations. Based on user location data, location clusters and sub-clusters are created. Based on the identified sub-clusters, a home cluster is identified and labeled as the user home location based on the location sub-cluster with time signatures representing the end of day and/or the location sub-cluster where the user has spent the longest stationary time. If the determined home location address is different from the current emergency address associated with the user, the user is prompted to update their emergency address to the newly determined home location address. The process is performed entirely on the user device.
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Hurwitz, Jonathan D., "Determination of User Home Location for Emergency Services", Technical Disclosure Commons, (July 02, 2020)