Patent ID: 8364746

Claim:
A system for determining a location associated with a mobile device configured for voice communication over an Internet Protocol (IP)-based wireless telecommunications network, the system comprising: a network controller with a processor and memory in an IP-based wireless telecommunications network that is configured to identify data associated with the mobile device, wherein the mobile device is communicably coupled to the network controller via an access point that operates on an unlicensed frequency spectrum and is coupled to an IP-based network, wherein the mobile device is configured for voice communication over the IP-based wireless telecommunications network via the access point, wherein the identified data includes at least one of an International Mobile Subscriber Identity (IMSI) or a media access control (MAC) address of the access point, and wherein the identified data is received by the network controller over the IP-based wireless telecommunications network; and a location database that is communicably coupled to the network controller, wherein the location database is configured for indexing with the identified data associated with the mobile device; wherein the network controller is further configured to communicate a query to the location database that includes the identified data associated with the mobile device, wherein the location database is further configured to provide a response to the query, wherein the response includes location information associated with the mobile device, the location information including at least one of: an address of the subscriber, a location of the access point, or a serving area of the access point, and wherein the response further includes an indication of a degree of accuracy of the location information.