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Motivation On-line / real-time / pre-paid accounting or has become very popular in mobile networks. SS7 based protocols and IN–based solutions approach are used A new IP-based accounting protocol is urgently needed to support credit based accounting for Internet services Diameter base accounting is not sufficient for real-time pre-paid services. By adding an optional credit-control application, theDiameter base accounting the needed functionality the can be provided by ‘existing’ AAA infrastructure. |