Trigger Determination at SMF

The SMF has triggers enabled by default, as specified in 3GPP TS 32.255, section 5.2.1.4.

These triggers can be overwritten at a session level by trigger configurations present in the charging profile. Further, these triggers can also be overwritten by CHF responses.

Trigger configuration in charging profile is only applicable at a session level. It is not applicable for rating-groups.

Note

The CHF response has various triggers. If some triggers exist at a session or rating-group level and other triggers do not exist, then these triggers are assumed to be disabled.