1 Jan
2020
1 Jan
'20
9:17 a.m.
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.