When does the IRI-POI in the HSS generate an xIRI containing the HSSServingSystemMessage record?
When the HSS sends DeregistrationData to AMF
When the HSS receives the Roaming Status Update from the UDM
When the HSS receives the AuthenticationInfoRequest from the AUSF
When the HSS receives the ProvideUeInfo GET request from the NF service consumer
When the HSS receives the LocationInfoRequest from an NF service consumer