As far as I know Signal voice calls are not illegal, and do not provide an ability to tap, and are p2p in network architecture. So I'm not sure that's accurate

As far as I know Signal voice calls are not illegal, and do not provide an ability to tap, and are p2p in network architecture. So I'm not sure that's accurate that there were any such legal limits on Skype, I'd like to see a citation to more info.