US 7,583,655 B2 · Synchronizing call feature data between an IMS network and a legacy network

Abstract

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

Claims20

Dependent claims

A communication network, comprising:

a legacy subscriber server of a legacy network that is adapted to identify feature data for a legacy call feature being provided to a dual mode device when the dual mode device receives communication access through the legacy network;
an application server of an IP Multimedia Subsystem (IMS) network that is adapted to provide an IMS call feature to the dual mode device when the dual mode device receives communication access through the IMS network;
and
an IMS subscriber server adapted to store feature data for the IMS call feature being provided to the dual mode device by the IMS network;
the application server is adapted to receive a change to the feature data for the IMS call feature from the user of the dual mode device, and to notify the IMS subscriber server of the change to the feature data for the IMS call feature;
and
the IMS subscriber server is further adapted to update the feature data for the legacy call feature in the legacy subscriber server based on the change to the feature data for the IMS call feature to synchronize the feature data for the legacy call feature with the feature data for the IMS call feature.

4 more elements

A communication network, comprising:

a legacy subscriber server of a legacy network that is adapted to identify feature data for a legacy call feature being provided to a dual mode device when the dual mode device receives communication access through the legacy network;
an application server of an IP Multimedia Subsystem (IMS) network that is adapted to provide an IMS call feature to the dual mode device when the dual mode device receives communication access through the IMS network;
and
an IMS subscriber server;
the legacy subscriber server is adapted to alert the IMS subscriber server of a change to the feature data for the legacy call feature being provided to the dual mode device by the legacy network;
and
the IMS subscriber server is adapted to identify the change to the feature data for the legacy call feature in the legacy subscriber server, and to notify the application server of the change to the feature data for the legacy call feature to synchronize the feature data for the IMS call feature with the feature data for the legacy call feature.

4 more elements

Dependencies are inferred from the claim text.

Synchronizing call feature data between an IMS network and a legacy network

Life of this patent

Synchronizing call feature data between an IMS network and a legacy network

Life of this patent

Abstract

Claims20