Patent ID: 9749837
Date: 2017-08-29
CPC Classifications: G06F,H04L,H04W

Claim:
1. A subsystem, the subsystem comprising a plurality of communicatively connected Internet Protocol (IP) multimedia subsystem (IMS) servers for providing IP multimedia services, wherein the plurality of IMS servers each include memory that stores data and wherein the subsystem is configured to execute computer-executable instructions that cause the subsystem to: determine location information associated with a user device that initiates a request for an IP multimedia service; identify a matching region for the user device by comparing the location information associated with the user device against one or more regions of the subsystem based, at least in part, on boundary information defining the one or more regions, wherein the boundary information is independent from IP addresses; select a first IMS server that resides within the matching region; forward information related to the request for the IP multimedia service to the selected first IMS server; and select, by the selected first IMS server, a second IMS server for providing the IP multimedia service to the user device.