The fines attributable to a single entity another.
The collectability on those fines, the third.
By scoping responsibility to include the call recipient's telco, you'd address all three of these.
That telco could, of course, adjust its risk-management practices (who it interops with, what the conditions of those interops are, caller identity / reputation) to minimise such risks.
True. Collecting the fines from the telco and then makin g them go extract those fees from their customers would be a powerful incentive to do something. We have an idea what that should look like, but capitalism is weird and who knows what they’d actually do.
The fines attributable to a single entity another.
The collectability on those fines, the third.
By scoping responsibility to include the call recipient's telco, you'd address all three of these.
That telco could, of course, adjust its risk-management practices (who it interops with, what the conditions of those interops are, caller identity / reputation) to minimise such risks.
Which would of course be the whole fucking point.