Re:Google Messages end-to-end encryption is now out of beta
by hocuspocus on Wednesday June 16, 2021 @04:51AM
(#27526352)
It's not an issue on the device, I asked my carrier, Google won't let them interconnect RCS to Jibe.
To my understanding, carriers were encouraged to either implement Universal Profile on their own or use a Google-operated "Jibe as a service" infrastructure. The former are now completely isolated from Google's network.
To me it looks like British carriers are simply using Jibe.
I do remember having loads of problems with RCS registration failing on the Samsung side, or just disabling itself.
Edit: Specifically I think it won't register whilst on WiFi and requires the correct mobile APN. I used to switch APNs to get a public IP address/ unfiltered internet