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#Cellbroadcast

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Continued thread
Kevin Karhan :verified:

As for supporting #WAP, [like
@ActionRetro did] that's still easy given #Germany basically keeps #2G up as vestigal / emergency service in limited #SpectrumAllocation basically indefinitely because #CellBroadcast was made mandatory and #EmergencyCalling in case of disaster can only work long reliably when the cell networks downgrade to #GSM.

  • #NewZealand does this all the time, including restricting #calls to #EmergencyServices in cases of big earthquakes so people in need of help get prioritized whilst everyone else can send out "I'm okay!" messages via #SMS and not tie up bandwith...

#WorstCase I could test said #Narrowband capabilities with #w3m on am artificially throttled to 2400 bit/s connection...

YouTubeIs WAP Dead?By Action Retro
Replied in thread
Kevin Karhan :verified:

@hackaday fortunately #Germany seems.to mandate.keeping residual #2G capacity online for mandatory emergency services like #CellBroadcast and #Calling as well as #SMS.

Sadly that doesn't mean they 3 big MNOs ain't gonna invest in improving 2G availability (tho they do provide it alongside #4G / #LTE & #5G and whilst they go up against illegal signal amplifiers, they at least offer or consider offering them (tho only 4G & 5G versions!), with #O2 making it a simple, not cheap purchase of a Femtocell whereas #Vodafone seems to demand a contract on top with fees (and not just.mandatory provisions to provide access to their technicians whenever they demand it) and #DTAG / #DeutscheTelekom seems to be very reluctant to offer any remedies at all…

  • Personally I wished that both the 3 MNOs and @BNetzA were to encourage #Fentocells and their #installation.

  • After all, these things are obviously locked-down "black boxes" that tunnel everything to their network over a #VPN tunnel and it's not like a #WiFi router where people have been caught (accidentially or on purpose) misconfiguring them to use *the wrong band (s) outdoors…

And enabling at least a very vestigal and limited #2G coverage should be in the cards for them, even if that could manage only a few hundred devices and a dozen calls at the same time...

www.o2business.deMobilfunkverstärker für Indoor-Empfang | o2 BusinessPerfekte Empfangsqualität überall: Indoor-Versorgung mit ✓ Femto ✓ Signal Box LTE S oder M ᐅ Mobilfunkverstärker bei o2 Business entdecken
#coverage
Replied in thread
Kevin Karhan :verified:

@annantidote good question…

As for anything else, #CellBroadcast transmission through the 3 MNOs and all their #MVNOs has been made mandatory by @BNetzA and so far seems to work reliable.

I do hope @bbk / #BBK does improve their #Apps since having more options is always better.

  • Ideally they'd offer not just #RSS-Feeds per Zip-Code but also a convenient & accessible #WebApp aka. Website (which works in #LynxBrowser) so #accessibility and thus reach is maximized.
#rss#webapp#lynxbrowser
*
phosh

There were successful tests of #Cellbroadcast at Bundesweiter #Warntag 2025 on @postmarketOS (https://fosstodon.org/@z3ntu/115184859174052676) (by @z3ntu) and on @mobian (https://ruhr.social/@agx/115184872311438441) (by @agx) on three different 📱models (with and without Qualcomm SoCs) with #Phosh 0.49. 🎉

For things to work out of the box: On Qualcomm SoCs you need at least #ModemManager 1.25.1 , Debian/Mobian waits for cellbroadcastd to enter the archive

FosstodonLuca Weiss (@z3ntu@fosstodon.org)Attached: 1 image Cell broadcast is working flawlessly with the latest ModemManager with #Phosh on #postmarketOS! #MobileLinux #LinuxMobile
#LinuxMobile
katzenberger

Zum #Bundeswarntag: wer #GrapheneOS benutzt und den Alarm gerade vor lauter Schreck einfach weggeklickt hat, findet die alten Meldungen immer in den Einstellungen unter

"Notfälle & Sicherheit" > "Notfallbenachrichtigungen an Mobilgeräte" > "Bisherige Notfallbenachrichtigungen"

(oder auf Englisch: "Safety & privacy" > "Wireless emergency alerts" > "Emergency alert history").

Dort (Notfälle & Sicherheit > Notfallbenachrichtigungen an Mobilgeräte) lassen sich bei GrapheneOS auch die Notfallbenachrichtigungen selektiv oder ganz abschalten, was man aber natürlich allenfalls für heimlich genutzte Geräte tun sollte, die nicht entdeckt werden dürfen.

Der Bundeswarntag ist immer am zweiten Donnerstag im September, ausprobieren kann man die Einstellungen also erst wieder am 10. September 2026.

Falls in der Zwischenzeit nichts passiert.

#Warntag#CellBroadcast
VOST_TeamMedien_LK_KH_RLP

Heute um 11 Uhr ist #Bundeswarntag . Es werden u a WarnApps wie zB #Katwarn & Sirenen getestet. Um 11:45 Uhr folgt Entwarnung mit eigenem Ton. Bitte beachten und Kinder & Nachbarn informieren! Bitte kostenlose App installieren! Bitte diesen Post teilen! Danke, Euer #TeamMedien #Katastrophenschutz #LandkreisBadKreuznach #Warntag25 #Warntag #BundesweiterWarntag #Zivilschutz #Vorsorge #Krisenvorsorge #Notfall #DeutschlandWarnt #CellBroadcast

phoenix🐧🏕🏞🚀🍝

This morning everyone in the region was woken up by a cell broadcast message, warning about possible gas smell in the air in the region. The reason is a leakage in Belgium (of course 😉)

Cell broadcast works perfectly for those one-to-many notifications. Battle proven, working tech. Awesome!

#Netherlands#CellBroadcast#hashtag
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