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#2g

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Replied to Forst

Won't be able to find anything about the visiting carrier though sadly. They can't create tickets for their engineers without me having a contract with them, and the first line only has very basic information. Can't even register on their community portal for the same reason :/

#VoLTE#LTE#iPhone
Replied to Forst

Alright, progress. My home carrier finally explicitly confirmed that they don't have #VoLTE Roaming, so the problem isn't on my side. Sadly no schedule/plans to have it implemented. Best case I only stop receiving calls (honestly for the better perhaps, with all the spam calls, hah), but SMS may still keep working if the visiting carrier supports SMS over #LTE signalling. Worst case I won't be able to use it at all, but we'll see.

#iPhone#Sweden#2G

Why are most countries struggling to shut down 2G?

While telecom regulators worldwide agree on ditching 2G, many haven’t yet figured out the timeline.

This is due to concerns over enabling digital disparity and disrupting tech-enabled devices like pollution data sensors and electricity monitoring equipment, according to Mike Jensen, internet access specialist at APC, for @restofworld.

restofworld.org/2025/shutting-

教你不再收「偽基站」假 # 騙人訊息 實際停用手機 2G 功能教學
最近有人涉嫌利用非法無線干擾器(俗稱「偽基站」)冒充政府部門等發送「#」字開頭短訊企圖誤導公眾。警方留意到騙徒 […]
The post 教你不再收「偽基站」假 # 騙人訊息 實際停用手機 2G 功能教學 appeared first on 香港 unwire.hk 玩生活.樂科技.
#實用技巧 #2G
unwire.hk/2025/02/19/how-to-st

दिल्ली की जनता आपदा मुक्त होना चाहती है आज अपने घोटाले का जवाब देने से भागते हैं #AnuragThakur

जो उस समय कांग्रेस के घोटालों का हिसाब मांगते थे आज अपने घोटाले का जवाब देने से भागते हैं दिल्ली की जनता आपदा मुक्त होना चाहती है. ---Senior BJP Leader Shri Anurag Thakur #AnuragThakur #SeniorBJPLeader #AnuragThakur Member of the Lok Sabha #ShriAnuragThakur #addresses #pressconference #BJP #HQ #New Delhi #2G scam #CBI Arvind Kejriwal #politics #Sonia Gandhi #11 years ago…

spinelessnews.com/%e0%a4%a6%e0

Spineless News Channels · दिल्ली की जनता आपदा मुक्त होना चाहती है आज अपने घोटाले का जवाब देने से भागते हैं #AnuragThakur - Spineless News Channels---Senior BJP Leader Shri Anurag Thakur

Samsung bendruomenėje glaustai pasidalinau kodėl reikėtų vengti 2G mobiliojo ryšio protokolų ir standartų grupės :blobcatnerd:

Visa bėda su 2G yra tame, kad standartuose numatyta prievolė abonentui (mobiliajam telefonui su SIM kortele) autentifikuotis (prisistatyti save identifikuojant ir taip gauti prieigą), tačiau nėra numatyta, kad tinklas turi įrodyti savo tapatybę abonentui - abonentas iš esmės negali žinoti ar prisijungė prie „tikro“ tinklo, ar piktavalių klastotės.

3G standartų ir protokolų grupėje jau numatyta, kad tiek abonentas, tiek ir tinklas turi prisistatyti vienas kitam. Būtent dėl šių priežasčių mums tenka karts nuo karto pasikeisti SIM korteles, kai operatorius reikalauja tai padaryti - būtent SIM kortelės savyje talpina identifikatorius ir sertifikatus tokiam abipusiam tapatybės patvirtinimui. Kiekviena vėlesnė karta - 4G, 5G ir t.t. turi vis stipresnes priemones užtikrinti susijungimo ir po to keliaujančių duomenų srauto tarp mūsų įrenginio ir tinklo saugumą.

Labai apibendrinant, mobiliojo ryšio abonento tapatybės gaudyklės (International Mobile Subscriber Identity catcher - IMSI-catcher), praktijoje vadinami stingray arba tiesiog kenkėjiškos mobiliojo ryšio stotys, veikia tokiu principu, kad bando sutrikdyti ar užgožti prieigą prie 3G ir aukštesnių grupių standartų, kad įrenginys mažintų reiklumą (downgrade) protokolams ir standartams, siekdamas užmegzti bent kokį nors įmanomą ryšį. Piktavalių pirminis uždavinys - daryti viską iki įrenginys sutiks komunikuoti prastai apsaugotais (lengvai šiuolaikinėmis priemonėmis iššifruojamais) ar visai neapsaugotais ryšio protokolais 🤓

eu.community.samsung.com · Atsakymas į: „Samsung“ išmanieji taps dar saugesniVisa bėda su 2G yra tame, kad standartuose numatyta prievolė abonentui (mobiliajam telefonui su SIM kortele) autentifikuotis (prisistatyti save identifikuojant ir taip gauti prieigą), tačiau nėra numatyta, kad tinklas turi įrodyti savo tapatybę abonentui - abonentas iš esmės negali žinoti ar prisiju...

I have a theory that I want to share about sites that aren't part of the #Cornerstone agreement for some reason and are #O2 only.

I reckon the LACs indicate when a site is O2 host and isn't shared with another network. I think whenever a 2G LAC begins with 22xxx, it's O2 only (regular sites begin with a 21xxx LAC).

* Case 1: Eastern Avenue in Mitcheldean. Broadcasts under BTS 9147 on LAC 22212, using an O2 host site ID of 038910.
* Case 2: random airport in Wales. Broadcasts on 2G, 3G and 4G, no indication of the 4G eNB popping up on Vodafone. Broadcasts on 2G under BTS 4147 with LAC 22860, site ID is 051035. 4G eNB is 545714 afaik (I couldn't be bothered to convert the cell ID to hexadecimal to check).

I think something similar happens on some O2 only 3G only sites, but I can't really confirm whether it's on any macro sites. I can confirm it happens on some boostboxes though, with 18xxx and 19xxx LACs.

#cellmapper #telefonica #vodafone #uk #unitedkingdom #2g #3g

@lucasmz @Avitus @david_chisnall the benefit of #XMPP+#OMEMO is that there are several providers, including free options...

All #PII incl. #PhoneNumbers can and will be abused by existing governments and if users don't pay, then they are the product and their data is the one to be sold.

After all, you have the same cost problem with phone numbers. Even if one doesn't pay per line/number and never pay for calls and texts, they still have to top it up to extent validity.

  • And again: It's way easier for a government to demand an ID for a #SIM that works in networks around their country (i.e. #Turkey demands registration on a per-#IMEI - basis *with #ID) than to tunnel XMPP+OMEMO through @torproject over #EDGEland-speed #2G networks.

Plus you relying an unfixably insecure #Telephony makes a system inherently unsafer than it needs to be...

  • This is how people get caught!

Also #Signal is able and willing to use said PII to restrict and ban users and if I were some dissident in Cuba or North Korea or even just Eritrea or Yemen I'd not rely on non-enforcement of #OFAC / #USML / #ITAR since Signal can obviously distinguish & identify accounts by virgue if their #PhoneNumber!

  • Always think "How can this be weaponized against someone?" when it comes to #privacy!

@vwestlife #Funfact: In #Europe, #Cband dishes weren't common so #SatelliteInternet used simiar #Tuner cards with #VSAT terminals, usually accepting downlinks from regular commercial #TV #satellites that were just data channels on #ASTRA and/or #Eutelsat #HotBird in the #KuBand...

  • Later they got some fancy "SAT-Routers" that combines a #DVB-S downlink and an #analog #56k / #ISDN modem for uplink if not offered to use #2G #mobile networks as well...

I've got one of those:

Basically a #Router with some #Linux on Ethernet, Power & F-Screw-Connector on the rear, #56k& #ISDN #Modem|s and USB up-front.

  • And yes, I used that to share a #dialup connection with multiple devices, because they can do that!
Replied to Kevin Karhan :verified:

And don't even get me started on #VoLTE support...

Also most #VoLTE / #Vo5G - devices *explicitly use #2G / #3G for #EmergencyCalls!

  • Which is #funfuckingtastic in a place like Australia where basically everything in nature conspires to hurt or kill humans!

[#TLDR: JUST TELL ME IF YOUR TABLET CAN DO #CALLS!]

#DearVendors of #Android-#Tablets:

Off all the #Functions you can put into a #Specifications Sheet of your Devices there's one you should ALWAYS answer clearly on your #Website:

DOES YOUR TABLET [with #4G / #5G / …) SUPPORT MAKING PHONE CALLS?

Like: IS IT TOO MUCH TO ASK TO HAVE THAT INFO IN THE SPECSHEETS?

You're obviously able to list all the #Codecs natively supported and the user-available storage as well as supported Frequency Bands, WWAN modes, WiFi channel width and the Display Glass vs. Panel dimensions including DPI of the latter and whether or not it has a hall effect sensor to detect your overpriced 1st party tablet covers!

Now some folks may ask: "WHY does this matter?" or outright dismiss this as a problem.

Listen:
Not everyone is able or willing to carry two devices when 1 SHOULD BE ENOUGH and also some places (i.e. #Turkey) have #ImportRestrictions re: #MobileDevices, so having more than 1 #IMEI is already a "NOPE!" by the authorities.

  • Also this isn't something one can "fix" post-purchase like installing #VLC to decode some obscure file format in Software: Either the #Baseband and #ROM support #PhoneCalls or they don't!

So why do NONE of the #Tablet manufacturers allow to #search or #filter for that???

NO, instead one has to download an obscenely huge #PDF just to then read on page 34 that for any "#telephony" function you NEED YET ANOTHER DEVICE FROM THE SAME MANUFACTURER AND HAVE TO SIGNUP WITH AN ACCOUNT and even that level of #abuse WON'T GUARANTEE THAT IT WORKS...

  • I mean, come on, this ain't some obscure functionality like #OMAPI to do some "evil sourcery" like managing an #eSIM that is in a #SIM-Card form factor!

Pretty shure A LOT of other folks have the same question and ain't willing to get yet another device & #SIM just to recieve the occasional call because #TechIlliterates can't be assed to send an #eMail or learn #XMPP+#OMEMO to message one...

  • Obviously they same manufacturers are able and willing to specify f-stops of the built-in cameras and list EVERY SINGLE #WEARABLE they made and certify as 'compatible' with, as if anyone is gonna take their non-#waterproof #Tablet for a marathon or god forbid triathlon...