A Voice over Internet Protocol (VoIP) server is configured to provide VoIP services to a plurality of VoIP-capable endpoint devices. The VoIP server receives, from applications running on the plurality of VoIP-capable endpoint devices, location updates identifying geographic locations of the plurality of VoIP-capable endpoint devices. The VoIP server modifies a location database to include entries specifying the geographic locations of the plurality of VoIP-capable endpoint devices. Telephone calls are routed based upon the entries specifying geographic locations of the plurality of VoIP-capable endpoint devices. Based upon input parameters, a set of periodic update timings are generated and sent to the plurality of VoIP-capable endpoint devices.