Msc logic for sip invite with imrn
AssigneeVerizon Patent and Licensing Inc.
InventorsCarlos J. Torres, Ryan Anthony Confroy, James Walter DuDasko, Eugene A. Carucci
Life of this patent
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Abstract
A method of receiving, by a mobile switching center (MSC), a first call associated with an IP multimedia subsystem (IMS) network. The method determines whether an origination request return result (ORREQ rr) message, associated with the first received call, was previously received by the MSC. Based on the determination that the ORREQ rr was previously received, the method generates a session initiation protocol (SIP) invite message and sends the SIP invite message from the MSC.
Claims20
A method comprising:
- receiving, by a mobile switching center (MSC), a first call that includes a mobile directory number (MDN) associated with an IP multimedia subsystem (IMS) network;
- determining, at the MSC, whether an origination request return result (ORREQ rr) message, associated with the first received call, was previously received by the MSC;
- generating, at the MSC, a session initiation protocol (SIP) invite message, associated with the first call, upon determining that the ORREQ rr was previously received;
- and
- sending the SIP invite message from the MSC.
A mobile switching center (MSC), comprising:
- a processor;
- a network interface coupled to the processor enabling network access to a user equipment (UE) device;
- a memory coupled to the processor;
- and
- a program stored in the memory,
- wherein the program, when executed by the processor, causes the MSC server to:
- receive, by the MSC, a first call that includes a mobile directory number (MDN) associated with an IP multimedia subsystem (IMS) network from the UE device;
- determine, at the MSC, whether an origination request return result (ORREQ rr) message associated with the first received call was previously received by the MSC;
- generate, at the MSC, a session initiation protocol (SIP) invite message associated with the first call, upon determination that the ORREQ rr message was previously received;
- and
- send the SIP invite message by the MSC.
A method comprising:
- receiving, by a mobile switching center (MSC), a first call that includes a mobile directory number (MDN) associated with Internet protocol multimedia subsystem (IMS) network for a user equipment (UE) device;
- determining, at the MSC, whether a first message associated with the received first call was previously received from another server;
- generating, at the MSC, a session initiation protocol (SIP) invite message, associated with the first call, upon determining that the first message was previously received by the MSC;
- and
- sending the SIP invite message.
Dependencies are inferred from the claim text.