Importance

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Abstract

Under one aspect, a method of providing combinational services to a user endpoint includes providing a radio access network in communication with the user endpoint; providing a circuit-switched (CS) network in communication with the radio access network, the CS network comprising at least one mobile switching center (MSC) capable of providing a voice service to the user endpoint via the radio access network; providing an IP multimedia subsystem (IMS) core in communication with the radio access network, the IMS core comprising at least one call state control function (CSCF); providing one or more application servers (AS) in communication with the IMS core, the one or more AS capable of providing a corresponding one or more data services to the user endpoint via the CSCF and radio access network; providing a serving node (SN) in communication with the CS network and the IMS core; configuring logic in the MSC to send a first pre-defined message to the SN in response to a trigger detection point (TDP) that is triggered by the user endpoint requesting a voice service or a first entity requesting a voice service with the user endpoint; configuring logic in the CSCF to send a second pre-defined message to the SN in response to a service point trigger (SPT) that is triggered by the user endpoint requesting a data service or by a second entity requesting a data service with the user endpoint; and configuring logic in the SN to receive and respond to at least one of the first and second pre-defined messages by at least one of sending instructions to the MSC to provide a voice service to the user endpoint and sending instructions to the AS to provide a data service to the user endpoint.

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First Claim