used by the AMF to notify its subscribed NFs of a particular N2 message. This is also used for N2 message redirection. The :Namf_Communication_CreateUEContext service operation is used by a source AMF during handovers to create UE context in the target AMF. TheNamf_Communication_ReleaseUEContext service operation is used by the source AMF during the handover cancel procedure to release the UE context in the target AMF. The Namf_Communication_EBIAssignment service operation is used to request Evolved Packet System (EPS) bearer IDs for a PDU session. The Namf_Communication_AMFStatusChangeSubscribea and Namf Communication_AMFStatusChangeUnSubscribe operations are used by a network function to subscribe/unsubscribe to and from an AMF status change. The eNamf_Communication_AMFStatusChangeNotify service operation is used to notify the subscribed NFs about an AMF status change. The Namf_Communication_NonUeN2MessageTransfe: service operation is used by a network function consumer to request the transfer of a non-UE-specific message to the NG-RAN via N2. The eNamf_Communication_NonUeN2InfoSubscribe/Namf_Communication NonUeN2InfoUnSubscribes service operations are used by the consumer to subscribe/ unsubscribe to and from the delivery of non-UE-specific information from the RAN to the AMF via the N2. The Namf_Communication_RelocateUEContext service operation is used by the initial AMF to relocate the UE context in a target AMF during the 4G to 5G handover, via N26. TheNamf_EventExposure service enables a network function to subscribe and get notified about a particular event ID. The Namf_Location service enables a network function to request the location information of a specific UE. These are the services offered by the AMF. In the next section, we will cover the services offered by the SMF. SMF services In this section, we will see how the SMF provides the functionality of session management via the various services it offers to its peer NFs, per 3GPP Release 16, , 29.502. Building Blocks - Cloud Native Infrastructure Th