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Rafael Diniz rafael at rhizomatica.orgHi all, I'd also like to test SMS and CSFB in LTE. I have some experience with the Osmocom GSM stack, but not much with the NextEPC LTE. Could you point me which fields should I set in the configuration files? Thanks, Rafael Diniz On 7/13/19 6:35 PM, Romeu Medeiros 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.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 > <mailto: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 <http://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 -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: OpenPGP digital signature URL: <http://lists.osmocom.org/pipermail/nextepc/attachments/20190719/6dd4bafa/attachment.bin>