Patent ID: 8521124

Claim:
A method comprising: receiving, by one or more devices, a location inquiry for a user device that initiated an emergency call, the location inquiry including an identifier for the user device; determining, by the one or more devices, fixed location data associated with the identifier; obtaining, by the one or more devices and from the user device, current geographic location data associated with the user device; calculating, by the one or more devices, a difference based on the fixed location data and the current geographic location data; selecting, by the one or more devices, a particular threshold based on at least one of: a type of a position determining method used by the user device to determine the current geographic location data, or a type of location identified in the fixed location data; determining, by the one or more devices, whether the difference satisfies the particular threshold; providing, by the one or more devices, a response to the location inquiry based on the current geographic location data when the difference satisfies the particular threshold; and providing, by the one or more devices, the response to the location inquiry based on the fixed location data when the difference does not satisfy the particular threshold, the response being used to route the emergency call to a particular answering point, the particular answering point being a first answering point that is associated with the current geographic location data when the difference satisfies the particular threshold, the particular answering point being a second answering point that is associated with the fixed location data when the difference does not satisfy the particular threshold, and the first answering point being different from the second answering point.