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Romeu Medeiros medeiros at medeiros.eng.brHello Sukchan, Now after remove this everything run correctly. [image: image.png] I will made the change more beatiful and pull the modification to the git to you aprove. Thanks Romeu Medeiros On Sat, Jul 13, 2019 at 6:50 PM Romeu Medeiros <medeiros at medeiros.eng.br> wrote: > I found this in the 3GPP documentations [1]: > > [image: image.png] > > I will change the code to send only the CSFallback indicator in this case > to see if can solve the problem. > > Thanks > > Romeu Medeiros > > 1. > https://www.etsi.org/deliver/etsi_ts/136400_136499/136413/09.10.00_60/ts_136413v091000p.pdf > > On Sat, Jul 13, 2019 at 6:35 PM Romeu Medeiros <medeiros at medeiros.eng.br> > wrote: > >> Hello Sukchan and friends. >> >> I'm trying to use the CSFB in test lab, and every time that nextepc send >> the UEContextModificationRequest, the UE respond with an >> UEContextModificationFaliure [ Protocol-cause=semantic-error ]. >> >> [image: image.png] >> >> I'm looking why I'm getting this. Someone have any idea? >> >> Thanks >> >> Romeu Medeiros >> >> On Thu, Jul 11, 2019 at 12:15 PM Sukchan Lee <acetcom at gmail.com> wrote: >> >>> Dear Osmocom & NextEPC Community, >>> >>> Today I've added CS Fallback and released NextEPC v0.5.0 >>> >>> So, I'd just like to test this part with Osmocom project, but it seems >>> to be a difficult task. The reason is why I have little knowledge about >>> 2G/3G. Nevertheless, I will try to do it >>> >>> BTW, I don't know if there is anyone who wants to integrate this big >>> thing. >>> Even though I'm not sure if this will help, but let me introduce the >>> configuration of the NextEPC. >>> >>> To use SGsAP, change the mme.conf as follows: >>> >>> # >>> # <sgsap> >>> # >>> # o Single MSC/VLR >>> # sgsap: >>> # addr: 127.0.0.2 >>> # plmn_id: >>> # mcc: 001 >>> # mnc: 01 >>> # tac: 4130 >>> # lac: 43690 >>> # >>> # o Multiple MSC/VLR >>> # sgsap: >>> # - addr: 127.0.0.2 >>> # plmn_id: >>> # mcc: 001 >>> # mnc: 01 >>> # tac: 4131 >>> # lac: 43692 >>> # - addr >>> # - 127.0.0.3 >>> # - fe80::2%lo0 >>> # plmn_id: >>> # mcc: 001 >>> # mnc: 01 >>> # tac: 4132 >>> # lac: 43692 >>> # - name: msc.open5gs.org >>> # plmn_id: >>> # mcc: 001 >>> # mnc: 01 >>> # tac: 4133 >>> # lac: 43693 >>> # >>> >>> FYI, I also attach the pcap that I run with nextepc simulator as below. >>> >>> $ ./tests/testcsfb >>> mo-idle-test : SUCCESS >>> mt-idle-test : SUCCESS >>> mo-active-test : SUCCESS >>> mt-active-test : SUCCESS >>> All tests passed. >>> >>> Feel free to raise any questions about this things. >>> >>> Best Regards, >>> Sukchan >>> >>> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/nextepc/attachments/20190713/8a1679c4/attachment.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: image.png Type: image/png Size: 217008 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/nextepc/attachments/20190713/8a1679c4/attachment.png> -------------- next part -------------- A non-text attachment was scrubbed... Name: image.png Type: image/png Size: 60539 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/nextepc/attachments/20190713/8a1679c4/attachment-0001.png> -------------- next part -------------- A non-text attachment was scrubbed... Name: image.png Type: image/png Size: 130318 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/nextepc/attachments/20190713/8a1679c4/attachment-0002.png>