Route call from OpenBSC to real operator using osmocombb

robert robert.steve07 at
Sat Feb 13 08:30:16 UTC 2016

Hi Domonkos,

So I understand that it could be done but some more work should be done. Is it only a matter of getting the right configuration to route outgoing calls via LCR to the SIP sink of osmocomBB or must I also change some code in OpenBSC/OsmocomBB ?

Best regards,

On Feb 12, 2016, at 10:53 PM, Tomcsányi, Domonkos <domi at> wrote:

> Hi Robert,
> As far as I know technically this is possible, but you'd need to add some code.
> I think you could connect openBSC with osmocomBB using SIP, but I think there is no SIP sink code yet in the mobile app. Andreas might have something along these lines, but I could be fully wrong.
> So the idea would be to route all outgoing calls via Linux Call Router to the SIP sink of osmocomBB. Also osmocomBB needs to be connected to the real network using a real SIM card. Note that all calls originating from your network will have the same caller ID (the phone number of the real SIM card).
> It would be an interesting project I think.
> Cheers,
> Domi
> 2016. febr. 12. dátummal, 17:56 időpontban robert <robert.steve07 at> írta:
>> Hi, 
>> Is it possible to route a call from a phone connected to openBSC (virtual BTS) to a real network using an osmocombb phone. In other words, to give a user within my own network the ability to call another phone connected to any other operator without routing the call through internet.

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