5.2 MMTel offline charging scenarios

32.2753GPPCharging managementMultiMedia Telephony (MMTel) chargingRelease 17Telecommunication managementTS

5.2.1 Basic principles

The MMTel offline charging functionality is based on the CTFs reporting accounting information, by sending Diameter Charging Data Requests Charging Data Request [start, interim, stop and event] to the CDF.

The circumstances on which the Diameter client uses Charging Data Request[start, interim and stop], or Charging Data Request[Event] depend on the supplementary service type and is determined for each of them. Further details are specified in clause 5.2.2.

These Diameter Charging Data Request triggers may be configured in such a way several MMTel supplementary services can be regrouped. Providing this flexibility allows to improve situations where several MMTel supplementary services are handled within the same AS for complying with interactions requirements associated to these MMTel supplementary services.