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Open Source Mobile CommsWe're happy to announce that on Wed, Apr 23rd, 2025 we'll have an <a href="https://fosstodon.org/tags/OsmoDevCall" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OsmoDevCall</a> without a formal presentation part. Details at <a href="https://osmocom.org/news/304" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://osmocom.org/news/304</a> - anyone interested is welcome to join us <a href="https://fosstodon.org/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> <a href="https://fosstodon.org/tags/gsm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gsm</a> <a href="https://fosstodon.org/tags/3gpp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#3gpp</a>

PhoshAs part of or work on <a href="https://fosstodon.org/tags/Cellbroadcast" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Cellbroadcast</a> we've documented our current test setup: <a href="https://codeberg.org/Phosh/gsm-cell-testing" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://codeberg.org/Phosh/gsm-cell-testing</a> using <a href="https://fosstodon.org/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> for the mobile network parts and <a href="https://fosstodon.org/tags/ansible" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ansible</a> for deploying <a href="https://fosstodon.org/tags/ModemManager" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ModemManager</a> on the devices, performing the tests and checking the results. Thanks to <a href="https://mastodon.xyz/@NGIZero" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@NGIZero</a> for supporting our work on this.<a href="https://fosstodon.org/tags/phosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#phosh</a> <a href="https://fosstodon.org/tags/LinuxMobile" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LinuxMobile</a>

Guido GüntherSuccessfully tested receiving <a href="https://ruhr.social/tags/cellbroadcast" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cellbroadcast</a> messages on the <a href="https://ruhr.social/tags/PinePhone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PinePhone</a> as well:# _build/test/mmcbmmonitor [/org/freedesktop/ModemManager1/CBM/0] new cbm: received 4371: Hallo, this is a CBS test messageSo hopefully all devices supporting `+CSCB` on an AT port should now be able to show these messages in <a href="https://fosstodon.org/@phosh" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@phosh</a> (if the MR makes it into the next <a href="https://ruhr.social/tags/ModemManager" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ModemManager</a> release).The <a href="https://ruhr.social/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> stack is such a great help for testing these things.Thanks to <a href="https://mastodon.xyz/@NGIZero" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@NGIZero</a> for supporting this.<a href="https://ruhr.social/tags/LinuxMobile" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LinuxMobile</a>

Open Source Mobile CommsWe proudly announce the Feburary 2025 Osmocom CNI releases. See <a href="https://osmocom.org/news/293" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://osmocom.org/news/293</a> for details - and thanks to everyone who contributed by code, bug reports, documentation or financially. <a href="https://fosstodon.org/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> <a href="https://fosstodon.org/tags/cellular" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cellular</a> <a href="https://fosstodon.org/tags/3gpp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#3gpp</a> <a href="https://fosstodon.org/tags/gsm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gsm</a>

Open Source Mobile CommsWe're happy to announce that on Wed, Jan 15th, 2025 we'll have an <a href="https://fosstodon.org/tags/OsmoDevCall" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OsmoDevCall</a> on "TFO (Tandem Free Operation) in GSM and 3GPP networks" by Mychaela Falconia. Details at <a href="https://osmocom.org/news/291" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://osmocom.org/news/291</a> - anyone interested is welcome to join us <a href="https://fosstodon.org/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> <a href="https://fosstodon.org/tags/gsm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gsm</a> <a href="https://fosstodon.org/tags/3gpp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#3gpp</a>

sysmocom - s.f.m.c. GmbHHappy to see that the <a href="https://mastodon.social/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> sfp-experimenter boards (available from our shop) were put to some good use by <a href="https://benjojo.co.uk/u/benjojo" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@benjojo</a> in his <a href="https://mastodon.social/tags/38C3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#38C3</a> talk on doing (among other things) TOSLINK over SFP transceivers <a href="https://media.ccc.de/v/38c3-going-long-sending-weird-signals-over-long-haul-optical-networks" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://media.ccc.de/v/38c3-going-long-sending-weird-signals-over-long-haul-optical-networks</a>

LaF0rgeOver the weekend I created a new tool to simplify the insertion of batches of cellular subscribers' key material into open source HLR/HSS/UDR: <a href="https://gitea.osmocom.org/sim-card/osmo-subscr-impex" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://gitea.osmocom.org/sim-card/osmo-subscr-impex</a> <a href="https://chaos.social/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> <a href="https://chaos.social/tags/3gpp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#3gpp</a>

sysmocom - s.f.m.c. GmbHwe're considering to fund/outsource development of a more complete open source ARA-M applet for JavaCard <a href="https://github.com/bertrandmartel/aram-applet" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/bertrandmartel/aram-applet</a> - if you'd like to work on this, please reach out to us! <a href="https://mastodon.social/tags/opensource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#opensource</a> <a href="https://mastodon.social/tags/javacard" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#javacard</a> <a href="https://mastodon.social/tags/globalplatform" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#globalplatform</a> <a href="https://mastodon.social/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a>

Open Source Mobile Comms<a href="https://fosstodon.org/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> 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 <a href="https://osmocom.org/news/264" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://osmocom.org/news/264</a> for details

sysmocom - s.f.m.c. GmbHAMN (Africa Mobile Networks) announces it's doing 1.5 billion voice call minutes per year using <a href="https://mastodon.social/tags/Osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Osmocom</a> software in their cellular network: <a href="https://amn.com/2024/06/amn-uses-osmocom-to-deliver-more-than-1-5-billion-voice-minutes-per-year/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://amn.com/2024/06/amn-uses-osmocom-to-deliver-more-than-1-5-billion-voice-minutes-per-year/</a>

Open Source Mobile CommsAMN (Africa Mobile Networks) announces it's doing 1.5 billion voice call minutes per year using <a href="https://fosstodon.org/tags/Osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Osmocom</a> software in their cellular network: <a href="https://amn.com/2024/06/amn-uses-osmocom-to-deliver-more-than-1-5-billion-voice-minutes-per-year/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://amn.com/2024/06/amn-uses-osmocom-to-deliver-more-than-1-5-billion-voice-minutes-per-year/</a>

Open Source Mobile Comms<a href="https://infosec.exchange/@infosecdj" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@infosecdj</a> and here is the associated TI Iota chip, the analog baseband companion to the TI Calypso <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:ti:twl3025bz" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://siliconpr0n.org/archive/doku.php?id=infosecdj:ti:twl3025bz</a> <a href="https://fosstodon.org/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> <a href="https://fosstodon.org/tags/openmoko" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#openmoko</a> <a href="https://fosstodon.org/tags/gsm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gsm</a> <a href="https://fosstodon.org/tags/retronetworking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retronetworking</a>

Open Source Mobile CommsThanks to <a href="https://infosec.exchange/@infosecdj" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@infosecdj</a> we now have <a href="https://fosstodon.org/tags/siliconpr0n" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#siliconpr0n</a> of the venerable TI Calypso GSM baseband processor which we used for <a href="https://fosstodon.org/tags/openmoko" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#openmoko</a> and later <a href="https://fosstodon.org/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a>: <a href="https://siliconpr0n.org/archive/doku.php?id=infosecdj:ti:d751749zhh" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://siliconpr0n.org/archive/doku.php?id=infosecdj:ti:d751749zhh</a> <a href="https://siliconpr0n.org/map/ti/d751749zhh/infosecdj_mz_nikon20x/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://siliconpr0n.org/map/ti/d751749zhh/infosecdj_mz_nikon20x/</a>

media.ccc.de 🤖First impression of eUPF (osmodevcon2024)[eUPF](<a href="https://github.com/edgecomllc/eupf" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/edgecomllc/eupf</a>) is a rather new implementation of a 3GPP User Plane Function. It is implemented in go and uses eBPF and AF_XDP in order to perform all the GTP-U handling ins <a href="https://media.ccc.de/v/osmodevcon2024-202-first-impression-of-eupf" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://media.ccc.de/v/osmodevcon2024-202-first-impression-of-eupf</a> <a href="https://botsin.space/tags/ccc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ccc</a> <a href="https://botsin.space/tags/osmodevcon2024" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmodevcon2024</a> <a href="https://botsin.space/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> #2024 #202

media.ccc.de 🤖GPRS support in osmocom-bb (osmodevcon2024)The sysmocom team has been working on implementing an open source GPRS modem for DARC on behalf of a grant by ARDC. This talk will present the current state of the implementation and demonstrate how t <a href="https://media.ccc.de/v/osmodevcon2024-198-gprs-support-in-osmocom-bb" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://media.ccc.de/v/osmodevcon2024-198-gprs-support-in-osmocom-bb</a> <a href="https://botsin.space/tags/ccc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ccc</a> <a href="https://botsin.space/tags/osmodevcon2024" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmodevcon2024</a> <a href="https://botsin.space/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> #2024 #198

Christian Horn<a href="https://toots.benpro.fr/@benoit" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@benoit</a> I heard it from you first, German provider 1&1 building an OpenRAN based network with Rakuten. The big remaining German magazine c't also was featuring it now in an article, quite innovative what they are doing.There is now also at least one provider even running OpenSource software <a href="https://chaos.social/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> on the base stations: <a href="https://media.ccc.de/v/osmodevcon2024-213-operating-open-source-mobile-networks-at-scale" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://media.ccc.de/v/osmodevcon2024-213-operating-open-source-mobile-networks-at-scale</a>

LaF0rgeOperating Open Source Mobile Networks at Scale<a href="https://tube.tchncs.de/videos/watch/91779bfa-b53f-4e72-b527-7b3433db2b1a" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://tube.tchncs.de/videos/watch/91779bfa-b53f-4e72-b527-7b3433db2b1a</a>

media.ccc.de 🤖High-performance I/O using io_uring via osmo_io (osmodevcon2024)Traditional socket I/O via `read/write/recvfrom/sendto/recvmsg/sendmsg` and friends creates a very high system call load. A highly-loaded osmo-bsc spends most of its time in syscall entry and syscall <a href="https://media.ccc.de/v/osmodevcon2024-209-high-performance-i-o-using-iouring-via-osmoio" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://media.ccc.de/v/osmodevcon2024-209-high-performance-i-o-using-iouring-via-osmoio</a> <a href="https://botsin.space/tags/ccc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ccc</a> <a href="https://botsin.space/tags/osmodevcon2024" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmodevcon2024</a> <a href="https://botsin.space/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> #2024 #209

media.ccc.de 🤖Digital Telecommunication in HF band - WWWAN - World-Wide Wireless Area Network (osmodevcon2024)We at Rhizomatica are running the High-frequency Emergency and Rural Multimedia Exchange System (HERMES) already for some years, based on P2P connections in a star topology, using UUCP. Now it is time <a href="https://media.ccc.de/v/osmodevcon2024-218-digital-telecommunication-in-hf-band-wwwan-world-wide-wireless-area-network" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://media.ccc.de/v/osmodevcon2024-218-digital-telecommunication-in-hf-band-wwwan-world-wide-wireless-area-network</a> <a href="https://botsin.space/tags/ccc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ccc</a> <a href="https://botsin.space/tags/osmodevcon2024" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmodevcon2024</a> <a href="https://botsin.space/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> #2024 #218

media.ccc.de 🤖GSMTAPv3 - The long-awaited successor (osmodevcon2024)We all know the inherent problems of GSMTAP (v2) as we know it. Can we finally tackle the much desired successor GSMTAPv3 in 2024? about this event: <a href="https://pretalx.sysmocom.de/osmodevcon2024/talk/Q3" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://pretalx.sysmocom.de/osmodevcon2024/talk/Q3</a> <a href="https://media.ccc.de/v/osmodevcon2024-181-gsmtapv3-the-long-awaited-successor" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://media.ccc.de/v/osmodevcon2024-181-gsmtapv3-the-long-awaited-successor</a> <a href="https://botsin.space/tags/ccc" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ccc</a> <a href="https://botsin.space/tags/osmodevcon2024" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmodevcon2024</a> <a href="https://botsin.space/tags/osmocom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#osmocom</a> #2024 #181

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