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#cellbroadcast

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@LaF0rge @stman @kDelta @Sempf obviously that's why it was discontinued for a time in #Germany, as it was considered as obsolete as #HSCSD is in light of faster standards that - even without guaranteed bandwith - will yield higher throughput.

  • Obviously #CellBroadcast will necessitate a constant bandwith allocation for functionality as it's design is based upon repeating a message until it's transmissiom being removed.

Still, even in contended #spectrum this is manageable, espechally since most #MNOs only maintain vestigal #2G or #3G infrastructure solely for #emergency coverage and reliability, as most phones will call emergency services over 2G and 3G and not via #VoLTE.

  • To add insult to injury, most BSCs will downgrade to 2G-only service by default in case of power loss to maximize UPS range and in the case of #NewZealand even switch off all services but #SMS & #EmergencyServicesCalling to enshure people in need can get their calls out, as the population is instructed to use SMS for person-to-person communication (as SMS is a low-priority, non-realtime service using excess bandwith and thus not compete with calling like #EDGE and #CSD would.
Infosec.SpaceKevin Karhan :verified: (@kkarhan@infosec.space)@stman@mastodon.social well, there were *some commercial services* that used #CellBroadcast but for the most part it's *best feature* is the effective mass alerting of people in an area without needing them to *install yet another app* or *signup to yet another service*... - The [temporary] shutdown of #CellBroadcast caused hundreds of avoidable deaths [in Germany alone.](https://en.wikipedia.org/wiki/2021_European_floods#Germany) @kDelta@mastodon.ie @Sempf@infosec.exchange @LaF0rge@chaos.social @nitrokey@nitrokey.com @signalapp@mastodon.world @GrapheneOS@grapheneos.social
Replied in thread

@stman well, there were some commercial services that used #CellBroadcast but for the most part it's best feature is the effective mass alerting of people in an area without needing them to install yet another app or signup to yet another service...

@kDelta @Sempf @LaF0rge @nitrokey @signalapp @GrapheneOS

en.wikipedia.org2021 European floods - Wikipedia

@kDelta @stman @Sempf @LaF0rge @nitrokey @signalapp @GrapheneOS

Given the hamfisted "Australian Approach" I disagree.

  • Noone here claims #2G or #3G are safe but don't you think stuff like "Emergency Coverage" and #CellBroadcast are useful?

Will be interesting to see if Australia can pull that off without having to reenable 2G, cuz I've not heard of a #4G implementation of it...

en.wikipedia.org/wiki/Cell_Bro

📢 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.

Oh, es ist offensichtlich Warntag in NRW.

❌ Cell Broadcast ging nicht.

Aber NINA hat angeschlagen und mir die Warnung dank KDE Connect direkt auf den Desktop geschickt.

Lass ich gelten. Ich wurde gewarnt. Sirenen gab's ja auch.

Dass es bei bei Cellbroadcast-Warnungen extra die Kategorie "Testalarme" gibt, damit die Menschen einen Testalarm auch als solchen erkennen können? Das Fax scheint noch nicht beim deutschen Katastrophenschutz angekommen zu sein 🤷

In #Hessen setzen wir beim Testen auf die beiden Gefahrenstufen "hoch" und "Extreme Gefahr" mit einem Text, der keinerlei Hinweis bzgl. eines Testalarms enthält. Sehr vertrauenswürdig!

Replied in thread

@MishaVanMollusq @Unixbigot reminds me of the #Ahr valley flooding which killed a lot of folks because none of the media and civil protection talked about it and #CellBroadcast was shutdown years ago...

  • The latter one being reinstated & mandated by @BNetzA and @bmi as a #warning system shortly after!

My advice: Keep to it and ideally be ready to GTFO up hill / to the side on a minute's notice!

en.m.wikipedia.org2021 European floods - Wikipedia