The CG9812 uses the GTP to receive the CDRs generated by the GSN/UGW in real time. This ensures no repetition or loss of CDRs. The CDRs are received directly by the network module. The network module is a working module in the access point process of the CG9812. It communicates with the GSN/UGW. After receiving CDRs, the network module sends them as a package to the frontsave module. The frontsave module stores the package of CDRs as original CDRs.

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