*1929* #Poland , city: #Krakow
Laying 19-hole double cable ducts using slings and placing them in the trench - east view. On the left, a fragment of the Main Post Office building; in the distance on the right, the side facade of the Press Palace at Wielopole Street 1
#telecom #telecomunication #TelecomHistory #history #cables #underground #oldphotos
History of Telecommunications T-Carrier
https://computer.rip/2025-09-20-T-carrier.html
#HackerNews #History #Telecommunications #TCarrier #TelecomHistory #TechHistory
Before smartphones and SIP, some phreakers worked magic with nothing but a lineman’s handset, a pair of alligator clips, and knowledge of where to tap in. By connecting directly to exposed phone wiring, often at a demarc box or inside a phone booth, they could make free calls, monitor lines, or explore the network. Some even wired up their own phones with modular connectors on one end and alligator clips on the other, turning any active line into a potential hacking terminal. It was low tech, but it worked, and it gave curious minds raw access to the heart of the phone system.
#Phreaking #TelecomHistory #AlligatorClipOps #LineTapping #AnalogHacking
[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 ...
With my article today, discover the fascinating journey of German rotary dial phones and their impact on communication history 📞🇩🇪
Read my article here: https://discovermyeurope.eu/the-evolution-of-german-rotary-dial-phones-from-innovation-to-everyday-necessity/
#VintageTech #TelecomHistory #RotaryDial #GermanEngineering #ZylinderhausExhibit
The history of German landline phones with rotating dials is a captivating tale of technological innovation and societal transformation. These devices, which once symbolised cutting-edge technology, have now become cherished relics of a bygone era. Early Innovations and Major Producers The rotary dial phone was first patented by Almon Brown Strowger in 1891. However, it [...]
If you're interested in this sort of thing (and who wouldn't be?!)
The whole notebook full of late 1950s UK telephone routing codes is online as a pdf here: https://paulseward.com/downloads/Telephony_Phreaking_Archive/TLA-FDY-TKZ.pdf
An OCR version will follow at some point in the handwavy future when I get around to it (if I don't forget).
#phreaking #preak #telephoneExchange #strowger #phoneExchange #telecom #telecoms #telecomHistory #telecomsHistory #phone #telephone
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