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<div class="moz-cite-prefix">On 12/30/19 4:48 PM, Shane Ronan wrote:<br>
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<div dir="auto">VoWIFI from your cell phone is essentially the
same thing, except your phone has to build a tunnel to the
providers EPC via an SGW because of the untrusted connectivity.</div>
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<p>Yeah, I got the IPsec part right away. I guess they figure once
it's in an encrypted tunnel it's nobody's business what's in it :)</p>
<p>Mike<br>
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<div dir="ltr" class="gmail_attr">On Mon, Dec 30, 2019, 7:45 PM
Michael Thomas <<a href="mailto:mike@mtcc.com"
moz-do-not-send="true">mike@mtcc.com</a>> wrote:<br>
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<div>On 12/30/19 4:41 PM, Shane Ronan wrote:<br>
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<div dir="auto">Look up VoLTE.</div>
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<p>Yeah I did, and confirmed it's just SIP+RTP over IP.
Which is why it's so frustratingly hard to find the same
simple diagram or whatever for vowifi. <br>
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<p>Mike<br>
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<div dir="ltr" class="gmail_attr">On Mon, Dec 30, 2019,
7:39 PM Michael Thomas <<a
href="mailto:mike@mtcc.com" target="_blank"
rel="noreferrer" moz-do-not-send="true">mike@mtcc.com</a>>
wrote:<br>
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On 12/30/19 4:19 PM, Brandon Martin wrote:<br>
><br>
> I really don't want to go diving down the 3GPP
document hole...<br>
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Yeah, no kidding. It's like acronym soup. I've been
trying all afternoon <br>
to figure out vowifi and am now pretty certain that
it's just SIP <br>
signaling over IP. But it's been really frustrating
because I still <br>
haven't managed to find "RTP" explicitly. I would
assume that if you use <br>
SIP you're probably going be shipping RTP packets for
media, but it's <br>
amazing how hard this has been to confirm, and I've
tried to find this <br>
out more than once. I even stumped Dave Oran...<br>
<br>
Mike<br>
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