SYSTEM AND METHOD FOR ROUTING AN INCOMING CALL TO A PROPER DOMAIN IN A NETWORK ENVIRONMENT INCLUDING IMS

摘要

In one embodiment, a scheme is disclosed for routing an incoming call in a
network environment including a circuit-switched (CS) network and an IP
multimedia subsystem (IMS) network, wherein the incoming call is being
directed to a user equipment (UE) device disposed in the network environment.
A network node disposed in the IMS network is operable to perform a number of
determinations with respect to the UE device''s domain, state, applicability of
user and/or operator policies and preferences, location, et cetera. The
incoming call is terminated to an appropriate domain (e.g., CS domain or IMS
domain) based at least in part upon the foregoing determinations.