On 31/Dec/19 00:42, Michael Thomas wrote: > > > > Oh, I didn't know that. Seems like it's a relatively new thing. Seems > like they went to a lot of trouble to essentially do what voip does. > Or maybe not? I've been poking around trying figure out what's going > on under the hood with wifi calling, and it seems like they're just > tunneling PSTN bits over the internet. If true, that's certainly a > quick and dirty hack. Maybe they're doing something similar for volte? As you connect to a wi-fi network, your mobile provider would have some kind of 3GPP AAA implementation that authenticates your SIM card (which could also support non-SIM devices), and then applies the policies for your service profile. Mark.
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