A summary of one or more aspects of the invention is now presented to facilitate a basic
understanding thereof, wherein this summary is not an extensive overview of the invention …

US9055517B2 - System and method of user-directed dynamic domain selection - Google
Patents US9055517B2 - System and method of user-directed dynamic domain selection …

(57) ABSTRACT A method and information processing system provide reli ability in an IP
multimedia subsystem network. The method includes monitoring a S-CSCF (210) for its …

BACKGROUND 0003 IP Multimedia services provide a dynamic combi nation of Voice,
video, messaging, data, etc. within the same session. By growing the number of basic …

A method of facilitating P-CSCF restoration when a P-CSCF failure has occurred is
disclosed. The method comprises a Proxy Call Session Control Function,'P-CSCF'receiving …

A method, a system, and a network element for service processing after data of a network
element is invalid or a network element fails are provided. When the service network …

(57) ABSTRACT A method and system in which upon occurrence of a P-CSCF failure, a
network sends an IMS reregistration request mes sage to a UE. An S-CSCF or an AS …

A system to promote communication in a second domain responsive to a failure in a first
domain. The system includes a first domain for communicating, and a second domain for …

2. Description of the Related Art Feature servers provide services such as call waiting and
voicemail to Internet protocol (IP) multimedia subsystem (IMS) networks. Gateways that …

(57) ABSTRACT A system and method for tunneling system error handling between
communications systems are provided. A method for error handling by a controller in an …