SMS

Romeu Medeiros medeiros at medeiros.eng.br
Wed Jul 17 19:47:19 UTC 2019


Hello Sukchan,

I found something stranger,

When the VLR try to Pagging the UE, the NextEPC-MME make the pagging
correctly.

But when this UE is not reachable the NextEPC it not sending to VLR the
SGsAP-UE-UNREACHABLE, like is necessary in the documentation:

[image: image.png]

I will try to fix it.

In attached I'm sending a pcap from this case.

The IMSI unreachable in this case is 724210000000002.

Thanks

Romeu Medeiros


On Tue, Jul 16, 2019 at 7:45 PM Romeu Medeiros <medeiros at medeiros.eng.br>
wrote:

> Sukchan,
>
> We can't thank you enough for the nextepc.
>
> I think that in some situations the msc is losing the sgs registrations
> and can't forward the sms. But I will more tests before to disturb you
> there.
>
> Thanks and success!
>
> Romeu Medeiros
>
> Em ter, 16 de jul de 2019 às 19:35, Sukchan Lee <acetcom at gmail.com>
> escreveu:
>
>> Hi Romeu,
>>
>> Wow! It’s amazing.
>> I can’t thank you enough for your effort.
>>
>> Best Regards,
>>     Sukchan
>>
>>
>>
>> 2019년 7월 17일 (수) 오전 1:33, Romeu Medeiros <medeiros at medeiros.eng.br>님이 작성:
>>
>>> Hello guys and @Sukchan Lee <acetcom at gmail.com>
>>>
>>> I tested with sucess the send and receive SMS in new version of NextEPC
>>> running together with OSMO-MSC/HLR (SGS).
>>>
>>> Thanks
>>>
>>> Romeu Medeiros
>>>
>>
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