| CPC H04L 65/1073 (2013.01) [H04L 65/1016 (2013.01); H04L 65/1096 (2013.01); H04W 36/00226 (2023.05)] | 8 Claims |

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1. A voice call device, comprising:
one or more processors; and
a memory having instructions stored thereon, which, when executed by the one or more processors, cause the one or more processors to:
initiate a voice call, wherein the voice call comprises a voice session over 5G new radio (NR) initiated via a user equipment (UE);
determine a status of a registration to an IP Multimedia Subsystem (IMS) for the UE;
in response to determining that the status of registration to the IMS for the UE indicates that the registration to the IMS for the UE has failed,
determine a 5G disable criteria has been met by the UE; and
in response to determining that the 5G disable criteria has been met by the UE, disable 5G on the UE.
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