LaF0rge

LaF0rge, 5 months ago to random

Am I the only one wondering why (at least high-end business) laptops still don't have SFP+ or QSFP28 slots these days?

LaF0rge, 5 months ago to random

I finally got my proof-of-concept (and world wide first open source) SM-DP+ for consumer eSIM to work. This is the component from which the eUICC (chip in phone) downloads encrypted eSIM profiles. Code at https://gerrit.osmocom.org/c/pysim/+/35461 - will be merged to pysim master soon. #GSMA #3gpp

LaF0rge, 2 months ago to berlin German

Weil eine Webseite/Datenbank nicht mit der erforderlichen verfuegbarkeit bereitgestellt werden konnte, gibt es kein Funkzellenabfragen-Transparenz-system in #Berlin mehr? Das ist ja auf @derpostillon Niveau, nur dass es real ist @vieuxrenard [ich weiss, bin spaet dran das aus dem Januar erst jetzt zu merken] https://www.berlin.de/sen/justv/presse/pressemitteilungen/2024/pressemitteilung.1406005.php

LaF0rge, 9 months ago (edited 7 months ago) to random

#cccamp23 ist wunderbar. Aber den Leuten jeden Tag eintrichtern, sie sollen >= 6h pro Nacht schlafen, trotzdem dann Musik bis mindestens 2.30h erlauben, und gleichzeitig Engel um 6:30h zum "Flaschen einsammeln und auf Anhänger werfen" einteilen und ab 7:00 das Geräusch von Verbrenner-betriebener Hydraulik (Radlader? Müllabfuhr?) passt einfach nicht zusammen.

LaF0rge, 6 months ago to random

Latest #retronetworking arrival in my collection of ISDN video telephones: A BT VS1 from the UK. Haven't yet tried to power it up; will first carefully disassemble and clean it.

type label of BT VS1 video phone
connectors of BT VS-1 video phone

LaF0rge, 4 months ago to random

I just received an invoice from ITU
(International Telecommunications Union). Their letterhead states a TELETEX number (in 2024!). I love it. #retronetworking - now I seriously wonder how I might be able to get connected to a public network that can reach it.

LaF0rge, 10 months ago to random

Mechanical assemply of the Nokia EKSOS ISDN/POTS access multiplexers for #cccamp2023 has started. On the top will be a steel plate with 3 fans. Below the EKSOS will be a 50port 1U RJ45 panel.

LaF0rge, 7 months ago to random

Some more information on the first SS7-over-TDMoIP interconnect between a Siemens #EWSD interchange in Brno/CZ and the Osmocom OCTOI hub in Germany: https://discourse.osmocom.org/t/the-first-ss7-isup-interconnect-at-octoi/204 #retronetworking #ISDN

LaF0rge, 1 year ago to random

The first time I get an actual cell broadcast / PWS warning on a public cellular network in Germany. Happy to see things are starting to improve...

image/jpeg

LaF0rge, 10 months ago to random

Progress wiring up the ISDN/POTS equipment for #cccamp23 - hand soldering +heat shrinking two wires for each port. 48 ports @ 3 units means 288 solder joints. Ah plus 12 more for the E1 circuit. #retronetworking #cccamp2023

image/jpeg

LaF0rge, 7 months ago to random

Latest #retronetworking acquisition: One of the first commercially available #ISDN video telephones (this unit built in 1992, but I think the model is available 2-3 years longer). Apparently the "Telekom Bildtel 001" was built around a LOEWE MultiTel TV10 BTX terminal, plus an AEG/OLYMPIA codec unit and a TV camera.

Reat view of Bildtel 001 connectors (TV/BTX, codec unit)
Combined Keyboard and Receiver unit of Bildtel 001, inherited from LOEWE Multitel TV10 BTX terminal
Side view of internals of Bildtel 001 codec unit, showing power supply, 4 stacked mainboard and many add-in cards

LaF0rge, 8 months ago to random

The back (backplane/cabling) side of the EWSD (1990s Siemens Digital telephony switch) after removing all the rack doors, before disassembly #retronetworking #EWSD

LaF0rge, 10 months ago to random

ROTFL: There actually is/was medication that they called ISDN (Isosorbid dinitrat): https://cdn.shop-apotheke.com/images/D02/747/140/D02747140-p12.jpg #isdn #retronetworking

LaF0rge, 6 months ago to Taiwan

Just finished reading the first chapter of "The Everything Blueprint" by James Ashton. The book is about the history of ARM, and the first 24 pages are an excellent summary of the role of #microchips in today's society/economy, the role of #Taiwan, the "silicon shield" theory etc. - not news at all for somebody like me, but an excellent write-up of what everyone should know about the topic.

LaF0rge, 24 days ago to random

CompilerFax: Sending C source code via telefax to a compiler-as-a-service which then faxes you the output of your program; demo: https://www.youtube.com/watch?v=pJ-25-pRhpY git: https://github.com/lexbailey/compilerfax intended for #emfcamp #retronetworking #whatagreathack

LaF0rge, 7 months ago to random

It's RetroNetCall time again: Join us at 20:00 CET tomorrow (November 1st, 2023) to chat about #retronetworking technologies and get some updated on the #EWSD rescue as well on my recent acquisition of the 1992 "BildTel 001" #ISDN video phone https://osmocom.org/news/224

LaF0rge, 3 months ago to random German

Hat jemand eine Idee, was man macht, wenn ein Haus einen bislang nicht genutzten BK-Anschluss im Keller liegen hat, aber #Vodafone (ex KDG) behauptet, es gibt an der Anschrift keinen? Ich hab Hausübergabepunkt mit eigenen Augen gesehen. Er ist da. Kennt jemand einen technischen Ansprechpartner auf Augenhoehe? #followerpower

LaF0rge, 3 months ago to random

Big photo session taking high-res photos of each and every circuit board in a #Siemens EWSD #ISDN switch yesterday. Will all go to the #retronetworking wiki after editing.

Siemens EWSD CCG11A
Siemens EWSD MH-SIMP
Siemens EWSD CMYM

LaF0rge, 3 months ago to Palm

Rescued yet another old smartphone (Palm Treo) whose rubery plastic has become sticky/goo-ey (de-polymerization) by using an ultrasonic bath with Tickopur TR14, a chemical intended for removing flux residue from circuit boards #retronetworking #palm #gsm

back panel of a Palm Treo whose rubber coating has estensive de-polymerisation (became goo-ey)
back-panels of Palm Treo after removing de-polymerized goo-ey coating using Tickopur TR14 in an ultrasonic bath

LaF0rge, 2 months ago (edited 2 months ago) to random German

Unvorstellbar, wie #cocacola Anzeigen 1938 in Deutschland aussahen. "Herstellerfirma rein arisch und deutsch!". (Quelle: https://druckschriften-digital.marchivum.de/zd/periodical/titleinfo/420689, CC-BY-NC-SA)

LaF0rge, 1 month ago to random

short video clip on 125 years of TELENORMA (historical German telecommunications manufacturer): https://www.youtube.com/watch?v=QVzSzFKywL4 #retronetworking #telephony

LaF0rge, 27 days ago to Leipzig

Either I'm going to the super unpopular venues/acts, or this years Wave-Gotik-Treffen has a surprisingly low turnout. In any case, enjoying amazing music across so many genres. #wgt2024 #leipzig

LaF0rge, 10 days ago to hardware

Watched the excellent technical talk on USB4 (and related topics) by @MacLemon at #GPN22 https://media.ccc.de/v/gpn22-359-usb-wie-funktioniert-das-eigentlich-certified-usb4-version-2-0- Great speaker, good balance of technical and entertainment. I hope somebody will contribute english subtitles eventually. #usb #hardware #making

LaF0rge, 1 month ago to random

I'm always surprised how much fun it is to debug mechanical problems instead of IT problems. I need more spare time for car and motorbike servicing. Today: engine oil leak due to [probably improperly installed] shaft seal

image/jpeg
image/jpeg

LaF0rge, 1 month ago to linux

Some code related to "PFCP offloading" or "PFCP tunneling" has just appeared in mainline linux. Oddly enougn PFCP is not a tunneling protocol, and the code itself claims its not implementing PFCP. Trying to find out more about it: https://lists.openwall.net/netdev/2024/05/15/95 #linux #3gpp #telecom - if anyone knows more, I am very curious.