Hi
You need first to register with STI-PA (Policy Administrator), in order to receive a token to obtain further certificates from an approved Certification Authority. In the US STI-PA is Iconectiv, in Canada - Neustar. Please check that link https://authenticate.iconectiv.com/
Thank you for that link. This is very interesting.
We receive an increasing number of calls from spoofed US numbers in Switzerland. Mostly tech support scams. I was pondering if there is a way to validate them via STIR/SHAKEN.
We try to filter out invalid +1 prefixes and lengths, but that is a rather fuzzy thing to do.
So it would be great, if we could implement STIR/SHAKEN to validate received calls from the +1 prefix.
Unfortunately to register for a STI-PA account, only TSP with an address in he United States are allowed. Do you know if there is a way to register as a Swiss Ofcom registered TSP?
(And yes, I am aware that signature signalling also has to be implemented but we have to start somewhere).
Hopefully STIR/SHAKEN can in future be deployed on a global level. Germany and UK would also benefit a lot, seeing also a lot of spoofed calls with their prefixes.