System and method for routing an incoming call to a proper domain in a network environment including IMS

摘要

In one embodiment, a domain selection method is disclosed for operation in a network environment including a circuit-switched (CS) network and an Internet Protocol (IP) multimedia subsystem (IMS) network. Policy criteria information related to a subscriber is maintained in association with a network node. A proper network domain is selected with respect to an incoming call directed to the subscriber based on at least a portion of the policy criteria.