> I think "our network eliminated spam calls" would be a major, major selling point for a mobile network.
If you genuinely had free choice of multiple otherwise similar quality options, which is not the case in all markets/areas.
Also, I wouldn't put it past the networks to promise to try to eliminate cold calls (to make it look like they are on your side), make a perfunctory amount of effort (the minimum to be able to say they are making an attempt), and still make the money they can from the other side.
If you genuinely had free choice of multiple otherwise similar quality options, which is not the case in all markets/areas.
Also, I wouldn't put it past the networks to promise to try to eliminate cold calls (to make it look like they are on your side), make a perfunctory amount of effort (the minimum to be able to say they are making an attempt), and still make the money they can from the other side.