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#telephony

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Open Source Mobile Comms

At our next RetroNetCall on August 6th, 2025, we will welcome the former Lead Engineer of the SEL/Alcatel Sytem 12 digital telephone switch. If you have any interest in historical digital telephony switching, don't miss out on this opportunity:
discourse.osmocom.org/t/retron #retronetworking #isdn #telecom #telephony #telecomhistory

Osmocom Discourse · RetroNetCall 2025-08-06: SEL Alcatel System 12[German version elow] At our next RetroNetCall on August 6th, 2025 we will have the pleasure of welcoming Mr. Langenbach-Belz, who was working at SEL (and later Alcatel) in a variety of technical management positions. He has been present throughout the the S12 (System 12) development from the very first architectural workshop on its design. The call will not contain a formal presentation, but is just a conversaiton about the history of System 12 and Mr. Langenbach-Belz involvement in it. In ...
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Wes AFØAJ

The amazing Connections Museum recently announced they were planning a new facility in Colorado, and put out a call for volunteers. I couldn't just not throw my name in the hat.

I interviewed with some of the Seattle team a couple of weeks back, and just heard this morning that I got a thumb's up to join the fun in bringing the new branch to life.

I still need to find a new FT job, but really looking forward to this being a part of my new future.

#telephony #volunteering

@connections

Silmathoron ⁂

Hey there Fedi, I have a question for you again!
My new employer is using #Wazo for VoIP at work: wazo.io

Does anyone know how good/bad this company is in term of surveillance?

Should I try to avoid it as much as possible to limit potential recordings of my voice and face or are they supposed to be well behaved?
Their ToS seem relatively harmless but the product does not seem to be open-source so I'm not sure how much one can trust it.

WazoWazo | VoIP Phone. Video. Chat. Integrations. All-in-one.Empower Your Team with the Wazo Platform. Unified Communication Solutions for Remote Work, Collaboration, and Customer Experience.
#fediQuestion#askFedi#VoIP
George Kiagiadakis

📢 With PipeWire 1.4 almost out of the door, let me introduce you to one of its highlights: Bluetooth telephony support.

This feature consists of a new D-Bus API which allows applications to manage phone calls using the Bluetooth Hands-Free Profile (HFP) protocol.

Check out my short tutorial on how to use the API from the command line and have fun calling! 📞

🔗 gkiagia.gr/2025-02-20-pipewire

George Kiagiadakis · Introducing Bluetooth telephony support in PipeWirePipeWire 1.4 is almost out of the door! One of the highlights of the new release — which I personally worked on and presented also recently on my FOSDEM talk — is Bluetooth telephony support.
#PipeWire#Bluetooth#Telephony
Thomas Adam

#telephony #gpo #telephone

@lpbkdotnet

Hey -- I hope you're well.

Quick question for you. As you might recall, I've some GPO telephones hooked into an internal PBX. This all works fine.

However, I'm wondering if there's a better way of managing this. My primary concern is that in order to get different telephones in each room round the house, I'm going to have to run a s*it tonne of cables through the walls and elsewhere.

Is there a more, err, modern approach to this? I just want to be able to use these GPO telephones for internal room-to-room comms only, if that helps?

TIA for any guidance!

David Zappelli

The #FCC is investigating #SanFrancisco -based #KCBS for its coverage of #immigration enforcement actions in #SanJosé last month, sparking concerns from press freedom advocates and drawing #RightWing #backlash to the #radio station.
#KCBS is considered one of the world’s first rradio stations, and formative to #SiliconValley history. Its original license goes back to #CharlesHerrold in 1909 and his radio- #telephony system. Based in San Jose, it’s historically significant as #Marconi himself.
Attacking this station which survived through two world wars, the Great Depression, and led to the development of Silicon Valley is bound to have immense significance. They’re literally attacking the nation’s oldest broadcaster, which is integral to information and American democracy!
#SFBA #ICE #FreedomOfInformation #FreePress #CBSNews #AmericanPress #Broadcasting #Telephony #history #California
kqed.org/news/12025977/fcc-inv

KQED · FCC Investigates SF Radio Station for ICE Reporting, Sparking Press Freedom FearsBy Juan Carlos Lara
Dźwiedziu

Dear #AskFedi,

I'm trying to call a Belgian phone number from France, using FR, LU, PL SIMs. Each time I am getting a message in German, telling me that the extension is not known.
The number is eight digits without the country code.
The number is supposedly callable from Poland.
WTAF is going on?

#telephony
Kevin Karhan :verified:

@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!
GitHublists.d/xmpp.servers.list.tsv at main · greyhat-academy/lists.dList of useful things. Contribute to greyhat-academy/lists.d development by creating an account on GitHub.
#privacy
Continued thread
Ety, Ringer of Bells ^G

Speaking of gear that I'd really like to get up and running again, there's this Equinox SuperSerial hub that's been occupying rack space for a while.

I think I originally picked this up with a specific want to do something like the Dial Up Lan-Party mentioned elsewhere.

I wonder how fast you can get a stable dial-up connection to work over an upstream #VoIP provider like Twilio, if anything.

#telephony#homelab#othernetworks
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Kevin Karhan :verified:

[#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 MAKE 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...
#Rant#TechSupport#Technology
Ety, Ringer of Bells ^G

There have been *so many* great responses, and thank you everyone for contributing! I got some great new #telephony, #RetroNetworking, and #HomeLab contacts and tags to follow, including the formerly-elusive #OtherNetworks tag!

I know that one of the things that people do on enthusiast retro phone networks is hold 'test calls' to other 'subscribers,' with increasingly esoteric equipment.

Is there an in-group term for these 'test calls' that's analagous to QSOs in the #HamRadio world?

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vga256

i am always surprised by how little attention this carefully researched history of the australian hacking scene has received over the years. dreyfus manages to present a technically deep yet down to earth recollection that feels like a page-turner.

if you’re interested in 1980s telephony, x25 networks, BBSes, and minicomputer architectures like Prime, this book is a no-brainer.

it’s impressive seeing a teenager turn a breadbox c64 into a MILnet penetration tool.

#bbs#telephony#hacking
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