[outages] [EXTERNAL] Re: IPAWS/FEMA National Test - VoWIFI

[Brian R]

What my testing experienced based on what I had laying around:
No alert
iphone - no service, wifi
samsung - no service/sim, wifi
samsung - off with service/sim
blackview - no service/sim, wifi

Alert
samsung - no service/sim, no wifi
xperia - with service/sim, wifi
samsung - with service/sim, alerts off
samsung - with service/sim, alerts on

No alerts that were not received at the time were received.
Depending on the os version it either came up as a Presidential Alert or a National Alert.

Brian
________________________________
From: Outages <outages-bounces at outages.org> on behalf of Wilson, Butch via Outages <outages at outages.org>
Sent: Thursday, October 5, 2023 5:21 AM
To: outages at outages.org <outages at outages.org>; Brad.Chapman at nbcuni.com <Brad.Chapman at nbcuni.com>
Subject: Re: [outages] [EXTERNAL] Re: IPAWS/FEMA National Test - VoWIFI

I had wondered about the delays yesterday. One of my user's phones went off almost two hours after the window.

Butch Wilson
Dir. of Instructional Technology
Mt. Vernon Township High School
Google Education Trainer (GET)
MCSE/MCSA/Security+
https://about.me/butch_wilson


On Wed, Oct 4, 2023 at 6:10 PM Chapman, Brad (NBCUniversal) via Outages <outages at outages.org<mailto:outages at outages.org>> wrote:
Are these alerts queued up for later delivery if a device is off-line, out of range, or connected to a Wi-Fi calling network (where these types of cellular signals are not relayed?)

If so, how long are they stored before being purged from the system?  1 hour?  24 hours?

-Brad

—Sent from my iPhone

> On Oct 4, 2023, at 2:14 PM, Jay R. Ashworth via Outages <outages at outages.org<mailto:outages at outages.org>> wrote:
>
> ----- Original Message -----
>> From: "Jay R. Ashworth via Outages" <outages at outages.org<mailto:outages at outages.org>>
>
>> I could be unsurprised to find that the carrier VoWIFI proxies missed out on
>> proxying SMS Cell Broadcast, which I gather provides the underlying PHY for
>> CMAS.
>
> I have now an authoritative report that no, the carrier WIFI proxies --
> carrying your voice calls to your carrier over someone else's wifi and the
> Internet, to be clear -- does *not* proxy the cellular control channel
> necessary to make CMAS/WEA work, and those alerts can be expected NOT to
> arrive if your phone is on WIFI only or out of all range of ANY carrier's
> towers.
>
> The only reports I'm still looking for are ones from people who are sure their
> phone was set to WIFI-only, and was out of range of cell coverage, and still
> got the national test alert, today at 1418EDT.
>
> Thanks,
> -- jra
> --
> Jay R. Ashworth                  Baylink                       jra at baylink.com<mailto:jra at baylink.com>
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