5G roadblock: labor

Wed Jan 1 14:17:24 UTC 2020

On 31/Dec/19 00:42, Michael Thomas wrote:

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> 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.