Change might be coming. The SHAKEN/STIR framework to authenticate calls is making decent progress: https://transnexus.com/blog/2018/providers-responses-shaken-

Change might be coming. The SHAKEN/STIR framework to authenticate calls is making decent progress: https://transnexus.com/blog/2018/providers-responses-shaken-without-delay/ https://transnexus.com/blog/2018/providers-responses-shaken-... Once implemented incoming calls can be handled differently (e.g. UI differences on dialer, dropped to voicemail) based upon the attestation.