Charging Related Transfers
Each Charging Data Function (CDF) has an O&M-configurable address list of Charging Gateway Function (CGFs) to which it can send its CDRs. The list is organized in CGF address priority order. If the primary CGF is not available, then the CDF sends the CDRs to the secondary CGF and so on.
Each CDR generating function only sends records to the CGF(s) of the same PLMN, not to CGF(s) located in other PLMN.
Each CGF in the PLMN must know the other CGFs’ network addresses to recommend another CGF address in case of redundancy. This is achieved by O&M configuration facilities that enable each CGF to have a configurable list of peers’ CGF addresses.