Feature Description

AMF checks if the subscriber is a roamer or homer, during registration. For a roamer subscriber, AMF selects one of the following roaming procedures:

  • Home-routed roaming: This procedure enables the subscribers to access the visited network through the home PDN gateway (H-PGW) and obtain services provided by their home networks.

  • Local Break Out (LBO) roaming: This procedure enables the subscribers to obtain visitor network provided services. LBO routes the traffic to the visited network, without routing through the home network before sending to or from the end destination.

AMF discovers the following NFs using NRF services, as per the selection of homer or roamer:

  • AUSF

  • PCF

  • UDM

  • SMF

Note

If UDM doesn’t support lboRoamingAllowed, choose the local operator configuration.

Prerequisites

NRF configuration must be available.