OpenBSC

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4315 discussions

Ring Back Tone Missing during Call Setup
by Ron 11 Aug '17

11 Aug '17

Hi All, I’m not sure if this is a valid question but still I’m going to try. I just updated from my old version of OSMOCOM to the latest one. Upon trying to test the updated version, it seems that the ring back tone, the one that rings in the Caller (Anum/Mobile Originating) side if the call started to ring on the Callee (BNUM/Mobile Terminating) side, is missing. Can anyone direct me to the right path where to check it? Below are the configuration files used for each OSMOCOM elements. Best Regard, Ron Menez ron.menez(a)entropysolution.com<mailto:ron.menez@entropysolution.com>

2 5

gerrit review comments
by Neels Hofmeyr 10 Aug '17

10 Aug '17

Again it is brought to my attention that my gerrit review causes annoyance. There is a recurring theme here, so I'd like to address all patch submitters. I feel like it's a Good Thing to mark *everything* I notice: "I've read your patch, and these are all the details I found, in case you'd like to address them." I see it as a courtesy towards the patch submitter. For some reason though I turn out to upset rather than help?? My (wrong?) impression is that these are normal reviews as I've given them as well as received them hundreds of times over the last decade+. In my world, adjusting my patches N times is normal, I make mistakes all the time. But I certainly don't want to upset: I'd really like to find out what I can change to make everyone's hacking smoother. In all my previous projects I got used to very high code scrutiny, and when starting on Osmocom, Holger's review of my patches has continued on the same high level ... often I had to revisit large amounts of my code. Thus primed, I find it hard to ignore irregularities: most of them mean the code becomes less stable or less maintainable/readable. Usually I'm trying to understand what the patch does or intends, and want to make sure future readers of the code can also understand easily. The idea is to save time in the long run. If you disagree with me or see inconsistencies, please let me know, whether a patch is merged or not. Maybe I oversaw something or maybe I'm just plain wrong. The mood I'd like to convey is: "yes, I trust you that all these patches are an improvement. I invested some of my time in your work with the goal to merge it soon. And here's everything that caught my attention; do you agree?" Ideally we can reach high code standards and at the same time collaborate productively. None of my gerrit comments or -1 votes are intended to convey emotion... Feel free to mail or jabber or talk to me, also privately, on these issues anytime! And feel free to ignore nitpicks if you don't care enough. ~N

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ip.access nano 3.5G : Any advice on how to configure channel and power?
by Alan Evans 09 Aug '17

09 Aug '17

Hello devs, I am using a 3.5G nano starter kit and I have a problem, hopefully someone can give me some advice. When I use the kit in a location with very little 3G coverage it works great, I scan for 3G networks, the phone sees a network '90170' and can register without any problems. However if I try the same thing in a location that has very good macro 3G coverage from several network operators, the phone can longer see my nano cell. I assume the problem is due to frequency reuse and the nanocell is using the same UARFCN as one of the macro cells. Does anyone have any advice on how best to find a clear frequency band to use? Also does anyone know if I have to reboot the ip.access after changing the UARFCN using set rfParamsCandidateList=({9800, 401, 1}) Regards -- Alan R Evans KAGE Design Services Ltd Tel: +44 7891 773415 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

2 1

paging priority
by robert 09 Aug '17

09 Aug '17

Hi, I have noticed that when there are many MS connecting to my BTS if I try to page (call or send SMS) a specific MS it takes a long time and sometimes just fails. Is there a way to give a higher priority for paging under high network loads ? from vty: Current Channel Load: CCCH+SDCCH4: 100% (4/4) TCH/F: 100% (2/2) SDCCH8: 100% (40/40) best regards,

3 3

Re: jenkins and osmo-ci
by Neels Hofmeyr 09 Aug '17

09 Aug '17

Hey André, since https://gerrit.osmocom.org/2465 is merged, do you have a patch ready that enables the build cache for openbsc.git/contrib/jenkins.sh? The slowness of the openbsc-gerrit builds is a drag... We could throw more build slaves at it, but it makes sense to give the build cache a chance first. ~N

1 0

Re: RRLP
by Vadim Yanitskiy 03 Aug '17

03 Aug '17

Hi, > And I found it's possible to acrivate some setting in > OnmoNITB but how can I do the actual request? I cannot > find anything in the user manual, vty manual or in the menu... This request is being sent automatically every time when a dedicated channel between MS and BTS is established. With best regards, Vadim Yanitskiy.

1 0

RRLP - How?
by Anton Gorbachev 02 Aug '17

02 Aug '17

Dear developers, I found that RRLP requests are possible within OsmoNITB. http://security.osmocom.org/trac/wiki/RRLP The popular Free Software implementations of the GSM network OpenBSC <http://openbsc.osmocom.org/> and OpenBTS <http://openbts.sourceforge.net/> both support RRLP inquiries to mobile phones And I found it's possible to acrivate some setting in OnmoNITB but how can I do the actual request? I cannot find anything in the user manual, vty manual or in the menu... Thanks in advance!

1 0

TS 04.14 commands
by robert 01 Aug '17

01 Aug '17

Hi, What are the newly implemented TS 04.14 commands used for ?

2 2

nano 3g s8
by Erich Dachleger 01 Aug '17

01 Aug '17

Hi,Does anybody now if the nano 3g s8 is available anywhere. They seem to be out of stock on ebay. Regards

1 0

libosmo-sccp vty point-code
by Neels Hofmeyr 27 Jul '17

27 Jul '17

In the libosmo-sigtran cs7-instance vty scope, we have the same point-code command on adjacent scopes: cs7 instance 1 point-code 1.2.3 ! sets primary_pc sccp-address msc point-code 0.0.1 sccp-address sgsn point-code 0.0.2 So if we reverse the order, we're in trouble: cs7 instance 1 sccp-address msc point-code 0.0.1 sccp-address sgsn point-code 0.0.2 point-code 1.2.3 ! sets primary_pc The parser interprets the last point-code to belong to the sgsn address scope, not the outer cs7 scope. We could rename the sccp-address one to 'pc', but... This reinforces the idea to do strict parsing of leading spaces in all our vty config files to interpret as explicit scope exit. That would break some running configs with odd spacing, but would also fix all of these issues forever. Given we're moving to a kind of Osmocom 2.0, now would be a good time to make such a change. If we from now on disallow tabs and enforce single-space indenting of child scopes, the code for that should be rather simple: count leading spaces and done. And we'd need to turn this off for interactive VTY shells. ~N

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