STIR/SHAKEN is a mechanism that validates the origination of calls but doesn't verify the legitimacy of the call, which can only be determined by the recipient.

STIR/SHAKEN is a mechanism that validates the origination of calls but doesn't verify the legitimacy of the call, which can only be determined by the recipient. While it is a good starting point to protect against spoofing, what we truly need is an end-to-end deterrent to prevent these annoying calls altogether. I believe that imposing a potential financial burden on the caller could be the only effective solution to counter these calls.