I set up a SIP call flow [1] to deal with this. I was getting upwards of ten spam calls per day. Apparently, the last person with my number owes a lot of money.

I set up a SIP call flow [1] to deal with this. I was getting upwards of ten spam calls per day. Apparently, the last person with my number owes a lot of money. In short, it's like Google Voice, with a change: The caller is asked to record their name, my phone rings from the SIP number, and the recording plays back. I can then press a key to pick up the call, another to send it to voicemail, and another to add it to a blacklist with an automated "GTFO" message (with the caller being redirected immediately to this message if they ever call again). Then, I set my cell to whitelist mode, which allows my contacts as well as the SIP number. 100% reject rate for bots and obnoxious callers, with very few false positives, and anyone important has my direct cell number. [1]: https://i.imgur.com/5zIo1sU.png https://i.imgur.com/5zIo1sU.png (Provider is Anveo)