Civil Defence mobile alerts

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#1908166 26-Nov-2017 21:15

Is it linked to nz v other firmwares? 5 connected mobiles on both of the major networks varying and versions of Android, and no alerts. So I'll have to feedback.

Interesting as previously I've had alerts on my phone in the US.

larknz

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#1908167 26-Nov-2017 21:17

It looks like the poor people who can't afford the latest phone miss out. Only the rich will be saved.

msukiwi

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#1908168 26-Nov-2017 21:25

larknz: It looks like the poor people who can't afford the latest phone miss out. Only the rich will be saved.

My partner has a new Doro flip phone, and it got the alert. It's a $100 phone.

My $300 ish phone didn't. (Samsung Galaxy J5 Prime).

So price has bugger all to do with it.

PaulBags

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#1908170 26-Nov-2017 21:29

larknz: It looks like the poor people who can't afford the latest phone miss out. Only the rich will be saved.

Every new carrier approved model sold from now on should have it enabled, across the entire price range. And anyone who doesn't get it is no worse off than before. Except maybe other people they know who do get it let them know, and the message still gets out faster than when the system wasn't in place at all...

garbonzai

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#1908171 26-Nov-2017 21:40

My Moto G (first gen Android 5.1) on Spark got the alert, my Galaxy S7 (Android 7) on Skinny did not.

Batman

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#1908177 26-Nov-2017 22:01

iphone 7 plus Skinny - no alert

iphone SE Skinny - no alert

Samsung

Shop now on Samsung phones, tablets, TVs and more (affiliate link).

Oblivian

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#1908178 26-Nov-2017 22:08

So from this we can pretty much come up with our own facts from these test reports on the NZ implementation.

Bar the obvious, not being on a primary cellsite cover that was missed from the applied broadcast list (there seems to be some funny stuff there..)

Standard/default handset CB channel for CMAS:
Global/US - 050
Philippines - 728

** Standard CB (US: 'WEA'/'CMAS') 1-999:

Weather
AMBER alert
Extreme + severe threats

*** 'Presidential'

Presidential, Imminent
Threat (such as a storm or tornado) and Amber alerts. These alerts
are automatically received by the latest WEA- (Wireless Emergency
Alerts) compatible handsets. However, subscribers can opt out of all
but Presidential alerts. Subscribers with WEA-compatible handsets will
receive alert messages when roaming to another provider in the US and
abroad that offers CMAS or EU-A

** Opt-out capable
*** Opt-out IGNORED - instructions to enable/disable ignored

NZ Implemented:

Presidential status alerts - not standard CB
Message Identifier 4xxx (Since Redacted by CDEM)

4370 CMAS CBS Message Identifier for CMAS Presidential Level
Alerts.
Not settable by MMI.

(- Taiwan relate this to 90% 4G handset capability, may be something in it)

Networks supported (back-end change): ALL (reportedly, but reports of skinny failures)
* Manufacturer OS/Firmware update required on most handsets to change/enable additional channel
Select VNZ(VF)/TNZ(Spark)/NZC(2D) branded/sold models have had updates pushed on agreement with providers/manufacturer

* Multi-channel or import WEA handsets may include NZ channel

Idevice 6+ with IOS 11.2+ appear OK (but bugs with silenced etc)

Samsung devices require default MMS app (globally confirmed)

Countries with their own modifications:
Canada
EU: <EUcountryCode>-Alert

Australia: Via SMS (SEWS)

Sure-signal broadcast capable: NO

* TBC

https://www.gsma.com/mobilefordevelopment/wp-content/uploads/2013/01/Mobile-Network-Public-Warning-Systems-and-the-Rise-of-Cell-Broadcast.pdf

/edit Mod channel to message identifier CDEM first displayed and redacted - confirms presidential

JarrodM

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#1908182 26-Nov-2017 22:14

Received on my iPhone X. Phone is on silent so it just vibrated, I could click on the message then close it, but it didn’t clear from my notifications, I had to swipe left to bring up the view and clear buttons to clear it. It probably would have been able to be cleared by using the clear all too

Brumfondl

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#1908184 26-Nov-2017 22:23

Batman:

iphone 7 plus Skinny - no alert

iphone SE Skinny - no alert

What version of iOS are they running? I am pretty sure the website says you need iOS 11 to get the alert.

Batman

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#1908185 26-Nov-2017 22:24

iphone 7 plus iOS 11, iphone SE iOS 10

the common denominator seems to be both are on Skinny?

Brumfondl

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#1908190 26-Nov-2017 22:32

Batman:

iphone 7 plus iOS 11, iphone SE iOS 10

the common denominator seems to be both are on Skinny?

Maybe they just think that someone named Batman should be more than capable of looking after themselves, alert or no... :D

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Oblivian

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#1908191 26-Nov-2017 22:36

OOook. So a bit of Dr Google strikes again

The 'channel' CDEM had on their page, and since redacted, is not actually a channel. It is a message identifer in the 3gpp standard that matches with our findings. Presidential message

4370 CMAS CBS Message Identifier for CMAS Presidential Level
Alerts.
Not settable by MMI.

http://www.etsi.org/deliver/etsi_ts/123000_123099/123041/09.06.00_60/ts_123041v090600p.pdf

Through the use of appropriate MMI, the user is then able to
ignore message types that he does not wish to receive, e.g. advertising information or messages in an unfamiliar
language.

So the NZ channeling change is still unidentified. Or may be using 050. But I would expect more to have triggered if it was

Taiwans usage claims 90% of 4G handsets can do president alert chan/mesage 4370 - so could be something in that

Oblivian

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#1908193 26-Nov-2017 22:54

PaulBags:
It does use the default app (disabling it's permissions was how I disabled alerts - and it's not clear at all that if you do so that will happen), and if you click the message without reading it to shut the sound up you get taken to the default app - which if you don't use it then doesn't actually show the message, instead it asks you to make it the default and asks for permissions. So, not at all helpful in an emergency.

Appears confirmed on XDA forums too..

And some dodgy disable hacks to go with it

https://forum.xda-developers.com/showthread.php?t=1829681