SYNCHRONIZING CALL FEATURE DATA BETWEEN AN IMS NETWORK AND A LEGACY NETWORK

摘要

Communication networks (100) and methods are disclosed that synchronize call feature data between an IMS network (110) and a legacy network (120), such as a cellular network. An IMS subscriber server (116), such as a Home Subscriber Server, HSS, is notified of changes to feature data for a call feature, such as call forwarding or call waiting, in the IMS network (110). Responsive to the notification, the EVIS subscriber server (116) updates a legacy subscriber server (122), such as a Home Location Register, HLR, in the legacy network (120) based on the change to the feature data. Similarly, the IMS subscriber server (116) identifies changes to feature data for a call feature in the legacy network (120). Responsive to the change, the IMS subscriber server (116) notifies one or more application servers (112-114) in the IMS network (110) of the change to the feature data. Through the IMS subscriber server (116), feature data for call features is synchronized between the IMS network (110) and the legacy network (120).