@sysmocom

custom tailored cellular solutions / open source cellular R&D / testing and research tools like programmable USIM/ISIM and eUICC/iSIM

 Berlin, Germany
sysmocom.de/
Joined April 2011
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  • Following17
  • Followers1.1K
14Media
Tonight at 20:00 CEST we'll have the next #OsmoDevCall - this time with a presentation on "The GSMA IoT eSIM (SGP.31/31)" explaining how this system differs from traditional Consumer eSIM architecture and protocols osmocom.org/news/281 - anyone interested is welcome to join us
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#osmocom has just tagged the July 2024 Cellular Network Infrastructure releases. Those are the first releases with io_uring support for significant performance/scalability improvements. See the release announcement at osmocom.org/news/264 for details
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Not new, but we didn't announce it yet: All the #OsmoDevCon 2024 video recordings are available at media.ccc.de/c/osmodevcon202… - thanks to all the speakers and @c3voc for recording/editing/releasing the video recordings!
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#AMN uses Osmocom to deliver more than 1.5 billion voice minutes per year @sysmocom #rural #Connectivity #Africa #ruralcoverage #Telecoms amn.com/2024/06/amn-uses-osm…
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"Operating Open Source Mobile Networks at Scale" video recording of #osmocom #OsmoDevCon2024 talk by @iedemam has been released media.ccc.de/v/osmodevcon202… #3gpp #osmocom - thanks to @c3voc - watch it to see how Osmocom is used in production at scale

Operating Open Source Mobile Networks at Scale

TBD

media.ccc.de
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Amazing talk at #OsmoDevCon by Michael Iedema of AMN today on real-world deployments using Osmocom 2G+3G: 1420 osmo-bts sites (4TRX each) in 11 countries via 17 osmo-bscs reliably serving 6.2 million call minutes per day!
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Replying to @LaF0rge
Our 2G layer has run on osmoGSM since day #1 so very happy to be supporting this workshop!
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With great pleasure we are announcing OsmoDevCon 2024, our first #Osmocom Developer Conference since the COVID-19 induced break. Happening from May 3rd through May 6th near Berlin. News item: osmocom.org/news/247 Wiki page: osmocom.org/projects/osmo-de…
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I modded an old Samsung/Commodore SQ-1000 electronic typewriter into a serial terminal/teletype. Basically put 2 AVRs between the original and the keyboard, one emulating a keyboard and one scanning the actual keyboard. It currently interfaces via RS232.
Commodore SQ-1000 electronic typewriter, full machine visible, with paper inserted showing a connection to the TECS BBS

ALT Commodore SQ-1000 electronic typewriter, full machine visible, with paper inserted showing a connection to the TECS BBS

inside the typewriter, small phenolic PCB on the left, 2 protoboards with Arduino Pro Mini 328 controllers for keyboard and printer interfacing

ALT inside the typewriter, small phenolic PCB on the left, 2 protoboards with Arduino Pro Mini 328 controllers for keyboard and printer interfacing

Debugging via Salaea logic analyzer

ALT Debugging via Salaea logic analyzer

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Testing 4G data with #open5gs #smf #upf under live conditions with test apn. Helping to improve the OSS Projects makes me happy - thanks to @sysmocom - github.com/open5gs/open5gs/p…

[CORE] Compare port in ogs_sockaddr_is_equal() by pespin · Pull Request #1608 · open5gs/open5gs

A sockaddr of type AF_INET and AF_INET6 has fields: addr and port. Only port was checked so far, meaning sockaddresses with same IP address but different port would be seen as equal, which is wrong...

github.com
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getsi.org/ Nice tool to quickly find 3GPP specs (in PDF)
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It's 2022 and Google has effectively prevented everyone from supporting ipv6 on their mail servers. Unless I manually force all mail traffic to gmail via v4, I'll always have users complaining that their emails bounce. *slow clap* spamresource.com/2020/11/hon…

Spam Resource: All Things Deliverability: Honestly? Don't send to Gmail over IPv6

Yes, some people do it, and yes, for some people, it works fine. But..... If you're standing up a new server and it has an IPv6 IP address, ...

spamresource.com
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Replying to @LaF0rge @pily112
Without sysmocom SIMs there would be hardly any post-auth research, thanks for keeping them available
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“The smart people will not work for your company, because you have turned into a marketing and financing exercise. And the smart engineers, they want to build better toasters, they want to touch actual stuff. “ – at Hospitalet de Llobregat, Spain
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“If as a company you have outsourced too much. No good engineer will still want to work for your company.” – at Hospitalet de Llobregat, Spain
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Validating a 9.8304 Gbps CPRI link between a LitePCIe/LiteICLink based design and a RRH..., test monitoring is done with LiteX server over PCIe and bridged to TCP (including I2C bit-banging in Python for SFP+ monitoring... a bit slow but... works and enough for our use case 🙂)
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Missed our @mozillafestival session on the future of community networks? The recording is now available! @redesac_mx, @rhizomatica & Co. on the importance of developing community-owned internet infrastructure and how to foster innovation in this space. youtube.com/watch?v=gOBesfOX…
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It's not widely known that the second "A" in "Alcatel" hails from "atomique", and that only the "T" is for telecommunication (and not for telephony): Société ALsacienne de Constructions Atomiques, de Télécommunications et d’ELectronique
Michaël Mangeon@Mangeon411 Feb 2021
Photo du jour Années 1970 : Pacemaker atomique (stimulateur cardiaque) au Plutonium 238, développé par la société Medtronic, Alcatel et le CEA. En 2021, on trouve sans doute encore quelques personnes qui ont ce petit « cœur #nucléaire » dans leur cage thoracique !
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Replying to @erickenredes @eleconomista
This is potentially very good news and the culmination of a long struggle by indigenous communities for the recognition of their communication and human rights. Keep an eye on this.
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