Google -in response to Apple- brought Satelite SOS to the Pixel 9;
Since no additional hardware is needed, 3GPP sounds like a regular BTS in space, that clearly has a more passive initialisation than regular networks. And these satelites pass communication to other satelites (which is a necessity at low orbit - since planet earth will come between you an the orbiting satelite).
Although initially available in North America only, this sounds like an interresting feature, although I'm not that often on top of lonely mountains without any coverage. Still, hiding in a closeth during a hostage-taking at the Apple-store in Amsterdam, unable to dial 112, is a not too hypotetical scenario you would wish to have this feature.