Restricting femtocell access based on device vonr capability and tracking area identification

A system comprising:

• one or more computer-readable storage media;
• a processing system operatively coupled with the one or more computer-readable storage media;
• and
• program instructions stored on the one or more computer-readable storage media, wherein the program instructions, when read and executed by the processing system, direct the processing system to at least:
• receive, via a wireless communication network, a registration request from a user device attempting to access a femtocell base station;
• retrieve, from the user device, device capability information for the user device, wherein the device capability information includes an indication of whether the user device has Voice over New Radio (VoNR) capability;
• determine, based on the indication, that the user device does not have the VoNR capability and requires a fallback mechanism for voice communication;
• determine that the femtocell base station is associated with a tracking area that does not support the fallback mechanism;
• and
• send, via the wireless communication network, a registration rejection message to the user device, wherein the registration rejection message instructs the user device to prevent itself from accessing the femtocell base station for voice communication for a defined duration.

One or more non-transitory computer-readable storage media having program instructions stored thereon, wherein the program instructions, when executed by a computing system, direct the computing system to perform operations, the operations comprising:

• receiving, via a wireless communication network, a registration request from a user device attempting to access a femtocell base station;
• retrieving, from the user device, device capability information for the user device, wherein the device capability information includes an indication of whether the user device has Voice over New Radio (VoNR) capability;
• determining, based on the indication, that the user device does not have the VoNR capability and requires a fallback mechanism for voice communication;
• determining that the femtocell base station is associated with a tracking area that does not support the fallback mechanism;
• and
• sending, via the wireless communication network, a registration rejection message to the user device, wherein the registration rejection message instructs the user device to prevent itself from accessing the femtocell base station for voice communication for a defined duration.