Robocalls need a binding regulatory or legal prevention. But, could technology fix spoofing numbers?
Would some variation of private/public key or authentication work? For example, if each number and the device/SIM or IP it is registered to have a unique key that must authenticate or handshake with the service provider to connect, then a spoof call with that number but lacking the key would fail, potentially be logged and reported to the FCC/authorities.
If no handshake can happen, call fails. If the number and hardware dialing out authenticates via key with the service provider or central store, call goes through.
Would some variation of private/public key or authentication work? For example, if each number and the device/SIM or IP it is registered to have a unique key that must authenticate or handshake with the service provider to connect, then a spoof call with that number but lacking the key would fail, potentially be logged and reported to the FCC/authorities.
If no handshake can happen, call fails. If the number and hardware dialing out authenticates via key with the service provider or central store, call goes through.