Earlier quoted context omitted.
> legacy TDM systems Easy fix. It should be opt-in to accept a call that is routed through one of these. I know they allow it so some grandma in rural France that still uses a dial phone on a copper line that hasn't been touched since 1962 can call her son in New York, but for the rest of us who are not in that situation, we can just blacklist all those calls and lose nothing. This would even fix spam for the people…
> Easy fix. It should be opt-in to accept a call that is routed through one of these. Easier (and correct) fix: Telecoms operators should not be permitted to provide transit to a call that's routed through one of these. > I know they allow it so some grandma in rural France that still uses a dial phone on a copper line that hasn't been touched since 1962... This doesn't make sense. Even my inexpensive Mikrotik switch…
Mikrotik is a young spring chick compared to the dinosaurs in telecom.