you have to comply with the STIR/SHAKEN protocol for caller ID verification and you have to send the FCC a robocall mitigation plan. The FCC alleges that these companies have failed on both counts ...

The FCC had sought to reinstate a sweeping policy established under President Obama that was designed to treat internet service as an essential public service, similar to a water or power utility.

The STIR/SHAKEN framework represents a significant technological advancement in the fight against fraudulent calling practices, enabling carriers to validate calls before they reach consumers.