Such a setup is easily achieved but has nothing to do with what the call terminates on be it a VoIP set or an ATA pretending to be a VoIP set. I seen carriers that provide an IVR to allow the customers to add numbers to a blacklist and the vertical service code to access and use that could be accessed from any set (including an ATA).
VoIP
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I'm using Ooma device connected to a regular phone. The service offers a few levels of call filtering. I have a contact list I throw at it every so often and set the filter to only allow calls from people I know. Everyone else has to leave voicemail.
So the device allows you to add white/blacklists with no connection to the service provider? You can access it on your local network and make the necessary changes at any time?
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That’s done on the LO/HO, PBX, or CENTREX