Values: 0, 1, 2, 3, 4, 5
0
Indicates that a UE having an ongoing IMS session, is not allowed to transfer the PDN connection providing access to IMS between EPC via non-3GPP access and 5GCN via NG-RANand that a UE does not have an ongoing IMS session is allowed to transfer the PDN connection providing access to IMS, if any, between EPC via non-3GPP access and 5GCN via NG-RAN.
1
Indicates that a UE having an ongoing IMS session, is allowed to transfer the PDN connection providing access to IMS between EPC via non-3GPP access and 5GCN via NG-RANand that a UE does not have an ongoing IMS session is allowed to transfer the PDN connection providing access to IMS, if any, between EPC via non-3GPP access and 5GCN via NG-RAN;
2
Indicates that a UE is not allowed to transfer a PDN connection providing access to IMS, if any, between EPC via non-3GPP access and 5GCN via NG-RAN, irrespective of if the UE has an ongoing IMS session or not.
3
Indicates that a UE roaming in a VPLMN and having an ongoing IMS session, is not allowed to transfer the PDN connection providing access to IMS between EPC via non-3GPP access and 5GCN via NG-RANand that a UE which is roaming in a VPLMN and does not have an ongoing IMS session is allowed to transfer the PDN connection providing access to IMS, if any, between EPC via non-3GPP access and 5GCN via NG-RAN.
4
Indicates that a UE roaming in a VPLMN and having an ongoing IMS session, is allowed to transfer the PDN connection providing access to IMS between EPC via non-3GPP access and 5GCN via NG-RANand that a UE which is roaming in a VPLMN and does not have an ongoing IMS session is allowed to transfer the PDN connection providing access to IMS, if any, between EPC via non-3GPP access and 5GCN via NG-RAN;
5
Indicates that a UE roaming in a VPLMN is not allowed to transfer a PDN connection providing access to IMS, if any, between EPC via non-3GPP access and 5GCN via NG-RAN, irrespective of if the UE has an ongoing IMS session or not.