The Access Transfer Control Function (ATCF) in the serving (visited if roaming) network. When SRVCC is enhanced with ATCF, the ATCF is included in the session control plane for the duration of the call before and after access transfer. The ATCF may be co-located with one of the existing functional entities within the serving network (P-CSCF or IBCF). In the EMA, choose a path: The window Include ATCF appears. Select an Atprofile from the drop-down menu and then from the Edit Include ATCF frame, accept the default option Always or choose Criteria based on the parameter descriptions below. Click Save to save your changes. Click Undo Edits to roll back to the configuration before edits were made and saved the last time. Include ATCF Parameter: Choose whether or not to control the ATCF with certain configurable criteria. Always (default) – The ATCF is included in the registration path without any criteria. Criteria – The ATCF is included in the registration path based on the access type over which the registration request is received and the UE roaming status.
Parameter Description Include ATCF
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