Limitations

This feature has the following limitations in this release:

When the SMS over NAS CLI is enabled, the AMF always fetches the SMS subscriptions data from UDM along with AM and SMF selection data. If the feature CLI is not enabled during initial registration, the SMS subscription data is not fetched for the UE. Later, when the UE requests for the SMS support in the subsequent Periodic or Mobility Registration message, AMF does not have the SMS subscription data, and the SMS is not activated.