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#cellbroadcast

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📢 Cellbroadcastd 0.0.1 was released yesterday 📢

#cbd provides the following:
- persistent storage of received #CellBroadcast messages
- notifications for user interfaces/DEs to handle
- set channels to subscribe to (based on country)
- CLI tool for inspection/debugging purposes

gitlab.freedesktop.org/devrtz/

Many thanks to @NGIZero for funding, @agx for involving me and tons of review and @snwh for UI design!

GitLabcellbroadcastd 0.0.1 · Evangelos Ribeiro Tzaras / cellbroadcastd · GitLab First cellbroadcastd release Provide permanent storage for received cell broadcast message Set modem channel's based on country Allow to (optionally) send...

Another #Cellbroadcast bit coming to #phosh / #LinuxMobile. The results of the users choice are set in the modem via a small daemon based on information we're getting from mobile-broadband-provider-info. That way only the tiny UI bit is DE specific, the other bits can be reused on other platforms as is. @devrtz is working on adding persistent storage to keep a message history.

Thanks to @NGIZero for supporting this and @snwh for the UI design.

Successfully tested receiving #cellbroadcast messages on the #PinePhone as well:

# _build/test/mmcbmmonitor
[/org/freedesktop/ModemManager1/CBM/0] new cbm: received
4371: Hallo, this is a CBS test message

So hopefully all devices supporting `+CSCB` on an AT port should now be able to show these messages in @phosh (if the MR makes it into the next #ModemManager release).

The #osmocom stack is such a great help for testing these things.

Thanks to @NGIZero for supporting this.

Replied in thread

And in #Germany it took a Natural Disaster with a triple digit bodycount for #CellBroadcast to be reactivated per legal mandate and #2G to remain online...

The fact that Telstra was unable to say how many devices roamed their Network should be seen as criminal incompetence cuz asking something like: "How many foreign devices are #roaming in your network?" is a standard #FAQ I'd expect them to put into their public financial reports - even as a #footnote re: #revenue [i.e. total devices, total revenue, average Calls / SMS / data per roaming device] cuz that's standard #metrics every #Telco & #ISP does create anyway...

de.wikipedia.orgHochwasser in West- und Mitteleuropa 2021 – Wikipedia

A #PSA for anyone living, staying, entering or even travelling to/from #Australia:

Apparently, #Australia decided to mandate it's #GSM systems to be shutdown because some #GalaxyBrainChair wanted to yeet #2G & #3G and demand everything to use #4G & #5G when in fact #VoLTE support is spotty at best and #EmergencyCalling oftentimes is explicitly hardcoded to not use #WIFIcalling or VoLTE as providing #triangulation and #LocationData via #SS7 is a desired feature when someone calls EMS, Fire Dept or the Police for help...

  • So essentially #tourists and anyone who hasn't an explicitly fully VoLTE-functional device they tested and verified to also do #EmergencyCalls via VoLTE are fecked with no reception when they need it the most!

  • This WILL KILL PEOPLE!!!

As much as we want to bitch about #GSM & #GPRS / #UMTS being #outdated and #inefficient, there are reasons to at least keep 2G available - ranging from lower power consumption to higher resilience in emergency situations.

  • #NewZealand for example does shutdown non-#EmergencyCalls during severe #Earthquakes so that people trapped and/or in need of urgent assistance can get through to dispatch operators and everyone else has to get in line and take a number aka. use #SMS or if existing #Internet to say "I'm fine!"...

  • If the Ozzies really need that juicy #UHF #SubGHz #Spectrum it's totally feasible to instead change the #allocations and reconfigure #CellularNetworks to use lesser bandwith for 2G (i.e. only keeping the absolute mininum of channels available for any service) and thus clear up space...

And to add insult to injury, Australia passed a #NorthKorea|n-alike #CellPhone #ImportBan for any device that doesn't do i.e. the bespoke proprietary garbage that i.e. #Telstra, #Vodafone and #Optus do with the #baseband modems of their #branded devices...

Seriously, which #TechIlliterate dickhead decided it's a good idea to do that #3Gshutdown in Australia without even a basic 2G network up and running at all?

📢 Bundesweiter Warntag am 14. September 2023

Nächste Woche Donnerstag um 11:00 Uhr wird das Bundesamt für Bevölkerungsschutz und Katastrophenhilfe (BBK) eine Probewarnung an die unterschiedlichen Warnsysteme senden. Neben Warn-Apps wie NINA und KATWARN wird auch wieder Cell Broadcast getestet.

Um 11:45 Uhr soll die Entwarnung folgen, was bei Cell Broadcast bisher aber noch nicht möglich ist.

bbk.bund.de/DE/Warnung-Vorsorg

BBKBundesweiter WarntagDer Bundesweite Warntag ist ein gemeinsamer Aktionstag von Bund, Ländern und Kommunen. Er findet jährlich am zweiten Donnerstag im September statt. 2024 ist dies der 12. September. Ab 11 Uhr wird eine Probewarnung verschickt. Gegen 11:45 Uhr erfolgt eine Entwarnung. Über Cell Broadcast wird derzeit noch keine Entwarnung versendet.

Nächster bundesweiter Warntag am 14. September

Bundesweit wird am 14. September wieder durchgespielt, wie im Fall von Katastrophen oder Kriegsfolgen gewarnt wird. Der bundesweite Warntag soll nach Angaben der Behörden noch besser klappen als der letzte Probealarm im Dezember.

➡️ tagesschau.de/inland/gesellsch

tagesschau.deNächster bundesweiter Warntag am 14. SeptemberBy tagesschau.de

Bundesweiter #Warntag 14.9.23 um 11.00 Uhr.

Bitte besprecht das mit Kindern/SuS. Apps wie #Nina und #katwarn sowie Wetter-Apps sollten zur Standard-Ausstattung auf Geräten von Minderjährigen gehören.
Was ist #cellbroadcast ? Wie Verhalte ich mich bei Warnungen? Was rät das Bundesamt für Bevölkerungsschutz? Welche Einstellungen braucht mein Handy, damit es auch wirklich klingelt?

#fedilz @fedieltern

hamburg.de/katastrophenschutz/

Replied in thread

@almaember thx for the info.

A lot of people will appreciate having their #EmergencyPhone or #HiddenPhone not being unvocered due to #CellBroadcast...

Not that my recommendation is to have a switched-off " #BurnerPhone " with removed battery, replacement battery, charger , SIM cards (yes, plural!) all zipped up if not vacuum-bagged and hidden somewhere safe if need be, but it's good to have a precise info for when to take those offline.

Please add any source links to details.

SAG MAL?! br.de/nachrichten/netzwelt/war

"Nach den Warnungen über die Warn-Apps "Katwarn" und "Nina", sowie den Deutschen Wetterdienst sei eine zusätzliche Warnung per Cell Broadcast nicht notwendig gewesen."

IN WAS FÜR EINER VERDAMMTEN BANENREPUBLIK LEBEN WIR HIER EIGENTLICH?! WER HAT DIESE ENTSCHEIDER AUF IHREN POSTEN GESETZT?! WARUM SITZEN DIE IMMER NOCH DA?!

BR24Warum gab es keine Cell Broadcast-Warnung in Nürnberg?By Gregor Schmalzried
#Nürnberg#NINA#CB

#Digitalkompetenz

Liebe Stadt #Nürnberg und alle anderen Kommunen. Ich erkläre es noch mal GAANZ einfach.

#CellBroadcast geht an ALLE die wo Handy haben. #NINA / #Katwarn / #DWD /#WarnWetter NICHT.

Eure Aufgabe ist es die gesamte Bevölkerung zu warnen. Also ZUERST Cell Broadcast, DANN NINA/KatWarn. OK?

"Nach den Warnungen über die Warn-Apps "Katwarn" und "Nina", sowie den Deutschen Wetterdienst sei eine zusätzliche Warnung per Cell Broadcast nicht notwendig gewesen."

br.de/nachrichten/netzwelt/war

BR24Warum gab es keine Cell Broadcast-Warnung in Nürnberg?By Gregor Schmalzried