OpenBSC September 2025

openbsc@lists.osmocom.org

5 participants
4 discussions

Mobile disassociates from sysmobts 1002 after call

by Christoph Quirin Lauter

Hello, I am sorry, this might not be the right place to ask. I am kind of a newbie to the osmocom stack as well, so please be gentle with me. I recently got an FCC license in the 900MHz range and I am running sysmobts 1002 at home. I have updated it from NITB to the modern world of course. Everything seems to work as it should but there is one issue: A Pixel 9 Pro Android phone with a sysmocom SIM card (999/70) connected to the sysmobts disassociates -in certain cases- with the BTS/BSC after a call and displays "No network". It will never reassociate again, unless I put the phone in airplane mode and back on. Then it reassociates immediately again. I cannot see anything particular in the osmo-bsc/osmo-bts-sysmo logs but as I said, I am a newbie. I will be happy to post the logs if this is helpful. The issue does not arise for each call, only certain calls. I use osmo-sip-connector to an asterisk. Is this a known issue? Is it an issue with the phone? Did I configure something in a wrong way? I will do some experiments with another GSM phone. Thank you! Christoph Lauter

1 week, 3 days

Move vlr code from osmo-msc into a own library

by Alexander 'lynxis' Couzens

Hi, a couple month ago I proposed to make the VLR code of the osmo-msc independent of the osmo-msc and create a new library called libosmo-vlr. Later use the libosmo-vlr code to integrate it into osmo-sgsn. But after take more time of this approach, I'm not sure if it is a very good idea to guarantee high stability of libosmo-vlr as we do for other osmocom libraries. Because the code is heavily integrated with both daemon and some code path are quite complex and partly not fully understood. I would rather guarantee runtime stability within a library version, but not at build time. The strategy would be increasing the library major version more often. Any thoughts? Best, lynxis PS. The current concept (because of time pressure) is to keep 2 copies of libosmo-vlr in the code base of osmo-msc and osmo-sgsn and to move it later out of it into an own library.

1 week, 4 days

Having trouble balancing GSM projects and coursework?

by fennellmarian018＠gmail.com

As someone knee-deep in OpenBSC settings and attempting to gain a firm understanding of BTS to BSC handovers, I've struck a stumbling block in balancing my technical deep dives with academic duties. Between tracing Abis interface logs and diagnosing paging issues, I barely have time to concentrate on my finance studies. To be honest, I've pondered finding someone to take my accounting class for me so that I can continue with my telco experiments here. I'm not sure whether anyone else is dealing with the same workload, but if you've discovered a solid workflow or technique, I'd love to hear about it because OpenBSC is currently capturing my full attention. visit: https://takemycourseforme.us.com/pay-someone-to-take-my-online-accounting-c…

1 week, 6 days

Struggling with Assignments? Let’s Talk About It!

by teves20525＠binafex.com

Hey everyone, I’ve been seriously overwhelmed lately trying to manage all my coursework, deadlines, and part-time job. It’s got me thinking how do others handle the pressure? I’ve been considering looking into an online university assignment help UK service but I’m not sure where to begin. Are these services reliable? Have you used one that actually delivered quality work without breaking the bank? I’m really looking for honest recommendations or red flags to avoid. What should I keep in mind before choosing one? Let’s share experiences maybe we can help each other out! Visit here: https://assignmenthelpinuk.co.uk/university-assignment-help/

2 weeks, 2 days

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OpenBSC September 2025