IMS and Method of Multiple S-CSCF Operation in Support of Single PUID
AssigneeAT&T Intellectual Property I, L.P.
InventorsMin Lu, Mark Ratcliffe
Life of this patent
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Abstract
A method for providing multimedia services to subscriber user equipment (UE) within an IP multimedia subsystem network (IMS) may include configuring the IMS to enable a single UE to fork register and cooperate with multiple serving-call session control functions (S-CSCFs). After obtaining IP connectivity, the single UE signals to register with the IMS and the IMS determines whether the UE is configured to fork register with multiple S-CSCFs. If the UE is configured, the IMS determines which S-CSCFs are eligible for the UE registration and fork registers the UE to multiple S-CSCFs of the eligible S-CSCFs. Consequently, incoming and outgoing calls to/from the UE are routed by the IMS to any of the multiple registered S-CSCFs.
Claims26
A method for providing multimedia services to subscriber user equipment (UE) within an IP multimedia subsystem network (IMS), comprising:
- configuring the IMS to provide a single UE with a capability of fork registering with multiple serving-call session control functions (S-CSCFs).
A computer readable medium encoded with computer program instructions for providing multimedia services to subscriber user equipment (UE) within an IP multimedia subsystem network (IMS), the computer program instructions comprising:
- configuring the IMS to provide a single UE with a capability of fork registering with multiple serving-call session control functions (S-CSCFs).
An Internet Protocol multimedia subsystem network (IMS) for managing multimedia services that enables single subscriber user equipment (UE) to fork register with multiple serving-call session control functions (S-CSCF), the IMS comprising:
- a single UE;
- a home subscriber server (HSS) for managing operation of the single UE including a field indicating whether the single UE is enabled for multiple S-CSCF operation;
- and
- multiple S-CSCFs adapted to accept, in cooperation with the HSS, fork registration from a single UE.
Dependencies are inferred from the claim text.