Based on past experience, it seems the telecoms sector prefers driving consumers away from their phones to driving fraudsters off their networks.
The PRISM database of revenue share numbers keeps needing to be refined to allow for changes in the methods used by IRSF and wangiri fraudsters.
Outgoing FCC Chairman Ajit Pai claimed to be acting decisively by reminding telcos to do things that he already told them to do.
The fundamental economics of crime remain the same, whether the vehicle is an international email or an international voice call.
Taher Talib of Shaw Communications explained why their Subex FMS automatically shares data about wangiri with other telcos.
Customers of Angolan operator UNITEL were said to have received calls that apparently originated from a wide range of countries.
Fraud managers who seek superior profits by refusing to share intelligence are wrong about crime, economics and customers. That is why they would never dare say publicly what they admit in private.
There has been no fall in the number of times the public is alerted to spikes in wangiri fraud, but the content of the warnings has evolved.
Telcos need to adopt a multi-layered approach to protecting their customers from conmen.
The recent wangiri attack upon Kenyans emphasizes the need for global cooperation to prevent wangiri fraud.