B.0 General

32.2603GPPCharging managementIP Multimedia Subsystem (IMS) chargingRelease 17Telecommunication managementTS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

This annex describes several scenarios related to IMS service termination in IMS-GWF.

SIP messages and Diameter transactions associated with these charging scenarios are shown primarily to illustrate the service termination procedures. They are not intended to be exhaustive and depend on the Diameter CCR triggers configured by the operator. The triggers for sending Debit / Reserve Units Requests from the IMS-GWF to the OCS are defined according to table 5.3.1.1.