Service call session control function entity backup method and system thereof
A technology of session control function and service call, which is applied in the direction of transmission system, digital transmission system, electrical components, etc., and can solve the problems that the service cannot be restored immediately, the service cannot be obtained continuously, and the service cannot be restored in time
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[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0042] The core of the present invention is that when the user successfully registers in the S-CSCF, the S-CSCF initiates the process of saving the user-related information to another S-CSCF that shares the load with the S-CSCF through a third-party registration method. request, and back up the dynamic data required to process the user's SIP request as transparent data to the data backup entity used for backing up data in the HSS or other network devices. When the S-CSCF fails, the network side forwards the SIP request of the registered user in the failed S-CSCF to another S-CSCF sharing the load with the S-CSCF. If the S-CSCF receives a SIP request that does not belong to the registered user of the S-CSCF, it will check whether the SIP request belongs to a third-...
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