Core Network Type Restrictions

The AMF supports the Core Network Type restrictions to restrict the core network access to the subscriber.

The AMF enforces the restrictions in the following scenarios:

  • The UDM subscription data configures restrictions for the AMF using CoreNetworkTypeRestrictions or local configuration in the Call Control Policy.

  • The AMF utilizes the UDM-provided CoreNetworkTypeRestrictions. If UDM doesn't provide CoreNetworkTypeRestrictions, the AMF uses the restrictions based on the local policy configuration from the Call Control Policy.

  • The Call Control Policy is configured when the availability of CoreNetworkTypeRestrictions is defined.

  • The AMF uses only the UDM-provided CoreNetworkTypeRestrictions.

  • You can also override the UDM-based CoreNetworkTypeRestrictions with local configuration using the override-udm-restrictions command.