5.1.0 Introduction
32.2603GPPCharging managementIP Multimedia Subsystem (IMS) chargingRelease 17Telecommunication managementTS
The IMS node shall maintain the integrity of all received or created charging-related information when forwarding the information to the offline, online and converged charging systems, whatever the length of the value of any particular parameter is. For example, the IMS Charging Identifier (ICID) may be generated by one IMS node (e.g. the P-CSCF) and forwarded to another IMS node (e.g. the S-CSCF). Both may generate charging information and ensure that the data integrity is maintained, in order to make possible correlation based on the ICID.