OpenBSC March 2026

openbsc@lists.osmocom.org

26 participants
39 discussions

Splitting out M3UA and MTP3 out of Open BSC into a separate library
by Arran Cudbard-Bell 15 Apr '26

15 Apr '26

Hi, Developing a module for FreeRADIUS to support EAP-SIM and EAP-AKA authentication against a HLR. The HLR we were targeting only supported a SCTP/M3UA/SCCP/TCAP/MAP stack, so we couldn't use SUA. Ripping the M3UA/MTP3 code out of OpenBSC worked surprisingly well. We ended up running the event loop in a separate thread to work around the threading issues. Unfortunately the HLR implements the ANSI variant of everything, whereas OpenBSC and supporting libraries seem to have been written to be compatible with the ITU standards. ...but the differences are fairly minor at MTP3 and SCCP layers, and i've started work on a patchset for libosmo-sccp. https://gerrit.osmocom.org/#/c/73/ Anyway, trying to gauge interest in splitting those layers out of Open BSC into a separate library, would be happy to take on M2UA as well for consistency. It would almost certainly get more projects using the code. There's very little out there even in Perl land for working with SS7. Thanks, -Arran Arran Cudbard-Bell <a.cudbardb(a)freeradius.org> FreeRADIUS Development Team FD31 3077 42EC 7FCD 32FE 5EE2 56CF 27F9 30A8 CAA2

9 9

GSM Silent call
by samir 15 Apr '26

15 Apr '26

Hi, I have read that silent-calls in GSM can be used to make a call to a target MS and listen to it without having the target knowing it. Is this theoretically possible ? If yes, can it be done in OpenBSC ?

3 2

[PATCH 4/4] core/conv: Add optimized Viterbi decoding
by Vadim Yanitskiy 15 Apr '26

15 Apr '26

Hi Tom and all, After a quick look at the 4th patch, related to your optimized Viterbi decoder, I have noticed that currently the convolutional code definitions from the 'src/gsm/gsm0503_conv.c' are out of the 'tests/conv' test coverage... So, I would like to extend the test coverage. All I need are the test vectors, which I'll add to existing ones. Some of them I already found in your 4th patch, but some pending I need to write myself. Right now I have a simple question... Let's look at one example: { .name = "GSM RACH (non-recursive, flushed, not punctured)", .code = &gsm_conv_rach, .in_len = 14, .out_len = 36, // ??? .has_vec = 0, .vec_in = { }, .vec_out = { }, } As I noticed, the 'in_len' may be taken from the code definition: const struct osmo_conv_code gsm0503_rach = { .N = 2, .K = 5, .len = 14, // The 'in_len' is here! .next_output = xcch_output, .next_state = xcch_state, }; But I don't know how to calculate the 'out_len'... Could you please give me some hint? I already started to work on your 4th patch: https://gerrit.osmocom.org/1542 https://gerrit.osmocom.org/1543 With best regards, Vadim Yanitskiy.

2 2

Need nano3G (S8 - Model 237A)
by Akib Sayyed 14 Apr '26

14 Apr '26

Dear List I am extremely sorry for off the topic question. I am willing to buy nano3G Nodeb. Is anyone in list have spare which can be sold. Please let me know. -- Akib Sayyed Matrix-Shell akibsayyed(a)gmail.com akibsayyed(a)matrixshell.com Mob:- +91-966-514-2243 <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

8 9

Most Impressive CompTIA A+ 220-1202 Exam Questions
by fyp58372＠laoia.com 14 Apr '26

14 Apr '26

CompTIA A+ 220-1202 dumps are collections of exam questions and answers shared online to help candidates prepare for the Core 2 (220-1202) exam of the CompTIA A+ certification. These dumps are often promoted as a shortcut to passing the exam by memorizing previously asked questions. However, relying on exam dumps comes with several risks: They may contain outdated or incorrect information They violate CompTIA’s certification policies They focus on memorization rather than real technical skills Certifications can be revoked if misuse is discovered For better results, candidates should use official CompTIA study guides, hands-on labs, instructor-led training, and reputable practice tests. Building genuine knowledge not only helps pass the 220-1202 exam but also prepares you for real-world IT support and troubleshooting roles. Visit Page: https://www.solution2pass.com/220-1202-questions.html

2 1

ip.access nano 3G S8 Configuration
by John Thewlis - Meath Broadband 10 Apr '26

10 Apr '26

We are trying to setup this AP as part of the 3.5G Osmocom project. We have the software stack operational and are now preparing the nano for testing. When we try to login via telnet at port 8090 we are getting a constant refusal to connect:- root@osm/openbsc/openbsc/src/ipaccess# telnet 192.168.192.30 8090 Trying 192.168.192.30... telnet: Unable to connect to remote host: Connection refused The device seems to be locked as indicated by the leds on the front panel. We have tried resetting the nano to see if this would help but to no avail. Any ideas as to how to access the device for initial configuration?. Thanks John

6 6

Is It Worth It to Pay Someone to Take My Online CompTIA Exam?
by olivianaylor322＠gmail.com 09 Apr '26

09 Apr '26

I’ve been struggling with my CompTIA exam prep and honestly, it's been hard to manage everything. The idea of asking someone to take my online CompTIA exam for me https://www.theresearchguardian.com/take-my-comptia-exam-for-me/ seemed a bit extreme at first, but after seeing how many students do it, I’m starting to consider it seriously. If anyone has tried this service, I’d love to hear your thoughts. Was it worth the investment? How reliable were the test takers? I just want to make sure I'm making the right choice.

3 3

Managing Complicated Laws in BSC Implementations
by Fennellmarian018＠gmail.com 09 Apr '26

09 Apr '26

The complexities of Base Station Controller (BSC) integration in open-source mobile networks have presented me with a number of overlapping areas pertaining to telecommunications legislation and regulatory compliance. In order to better comprehend how international legal standards affect open BSC installations in various jurisdictions, this intersection has unanticipatedly prompted me to seek [url=https://dissertationwritinghelp.uk/law-dissertation-help/]law dissertation help[/url]. I would love to hear from anyone else who has studied legal issues in their OpenBSC-related academic or practical work, as well as suggest some books.

5 4

Ready to Rage? A Guide to Mastering Drive Mad
by tiny.squid.wjuz＠hidingmail.com 04 Apr '26

04 Apr '26

So, you've stumbled upon the delightfully infuriating world of Drive Mad. Congratulations, you're about to embark on a physics-based journey that will test your patience, your precision, and quite possibly your sanity. But don't worry, we're here to help you navigate those precarious ramps and gravity-defying obstacles. Drive Mad is a simple yet addictive game where your goal is to drive a vehicle (typically a car or truck) through increasingly difficult obstacle courses. It sounds easy enough, right? Wrong. The game's physics engine is wonderfully chaotic, meaning even the smallest miscalculation can send you tumbling into the abyss. Think of it as a cross between a platformer and a driving simulator, with a healthy dose of "one more try" appeal. Gameplay: From Zero to (Hopefully) Hero https://drivemadfree.com The controls are straightforward. Usually, you'll have buttons for acceleration and braking, and potentially some for adjusting your vehicle's pitch. Mastering these controls is the key to success. Gentle taps are often more effective than slamming on the gas or brakes. The levels themselves are ingeniously designed, with ramps, loops, drops, and strategically placed obstacles designed to throw you off course. You'll need to use momentum, gravity, and a whole lot of finesse to make it to the finish line. Expect to crash. A lot. Drive Mad is built on a trial-and-error system. Each crash is a learning opportunity. Did you take that ramp too fast? Did you not lean back enough? Figuring out the nuances of each level is part of the fun (and the frustration!). And if you're looking for a free version, you can find one by searching online, or even trying the keyword Drive Mad at websites like Drive Mad. Tips to Keep You Rolling (Or At Least Not Crashing As Much) • Patience is Key: Seriously. Don't get discouraged by early failures. Every crash brings you closer to understanding the level's intricacies. • Master the Gentle Tap: Avoid flooring the gas or slamming on the brakes. Small, controlled movements are far more effective. • Lean into It: Utilize the pitch controls (if available) to adjust your vehicle's angle. This is crucial for landing jumps and navigating steep inclines. • Momentum is Your Friend: Sometimes, a little bit of speed is all you need to clear an obstacle. Other times, slowing down is the smarter move. Experiment to find the right balance. • Watch for Patterns: The levels might seem random, but there's usually a logical path to success. Observe the layout and identify the best routes. • Don't Be Afraid to Restart: Sometimes, you're just too far gone. A fresh start can save you a lot of grief. Conclusion: Embrace the Madness! Drive Mad isn't a game for the faint of heart. It's challenging, frustrating, and sometimes downright infuriating. But it's also incredibly rewarding. When you finally conquer a particularly difficult level, the sense of accomplishment is immense. So, embrace the madness, practice your skills, and get ready to experience a truly unique and addictive gaming experience. Good luck, and happy driving!

2 1

Plagiarism Detection Tools: A Helping Hand for Students
by thomasemily11399＠gmail.com 03 Apr '26

03 Apr '26

Plagiarism detection tools are invaluable resources for students, ensuring academic integrity in their work. These tools help identify unoriginal content, allowing students to avoid unintentional plagiarism and maintain credibility in their assignments. By scanning essays, research papers, and projects against vast databases, these tools highlight any similarities with existing sources, providing students with the opportunity to revise their work before submission. For students struggling with citations or paraphrasing, plagiarism checkers act as a safety net, ensuring proper attribution of sources. Additionally, platforms like My Assignment Help offer guidance on how to use these tools effectively, helping students refine their writing while improving their research skills. Using plagiarism detection tools not only ensures compliance with academic standards but also boosts the student’s confidence in submitting original, well-crafted work. This proactive approach fosters learning and academic growth, providing a solid foundation for future success. Visit Us : https://baddiehub.org.uk/plagiarism-detection-tools-a-helping-hand-for-stud…

2 2

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

OpenBSC March 2026