Automatically declines all calls failing STIR/SHAKEN verification.

What?

Ever receieve a spam call and try to call it back, only for it to be out of service or some stranger? This blocks that.

STIR/SHAKEN provides cryptographic attestation of caller ID and is mandated by law in USA and Canada

https://www.fcc.gov/call-authentication

https://en.wikipedia.org/wiki/STIR/SHAKEN

https://fccprod.servicenowservices.com/rmd?id=rmd_listings

Usage

Install the app, grant the screening perission, not