"You don't need a clipper chip to trace nuisance calls. You need an authenticated network that records the origin of calls," So where is this magical solution

"You don't need a clipper chip to trace nuisance calls. You need an authenticated network that records the origin of calls," So where is this magical solution you speak of? We're all products that the phone company sells to telemarketers, there is no incentive for them to give us these tools now. Again, the clipper chip would have made it difficult for anyone to pretend to be someone they are not, cryptographic signature is part of the deal to ensure you are talking to who you think you are talking to.