Re: [Openbts-discuss] using C140 motorola as a BTS station with openBTS ?

[Mille F. <epr...@gm...>]

cool! Thanks for the correction guys!

On Sat, Jul 25, 2015 at 3:30 AM, Edson Aguiar <eds...@gm...>
wrote:

> Yes you can, as tranceiver of a very limited BTS.
> Why limited? The phone chipset will only allow it to transmit one
> timeslot, so you will only have signaling, no TCH, hence no voice, no
> GPRS :( . But with that you can have other phones to camp in and exchange
> some SMS messages to each other.
> The setup is quite complicated, as you can see on osmocombb, a lot of
> compilation, (5hs on a single core VM), need a special USB-SERIAL cable
> (FTDI chip), modification to the phones RF Filters if you want more than a
> couple of meters range, you need to sync its clock to another ARFCN
> (commercial one), etc.
>
> From my experience I would say: unless you think that would be cool (my
> case back when I tried it), don't go down that path, get a real SDR, it is
> much simpler, you get voice, sms, gprs and can even try different things
> such as UMTS or LTE with it.
>
> Good luck!
>
>
>
> Em sexta-feira, 24 de julho de 2015, jp orlean <jpo...@ya...>
> escreveu:
>
>> Hi everybody,
>>
>>    I'm doing an internship in my university, it deals with GSM security
>> and i would like to build a GSM network using a motorola C140 as a BTS
>> tower. I first had this idea from the osmocombb project, but i can't
>> subscribe to the osmocombb website (i think there are on vacation), that's
>> why i looked for another software and found openBTS which appears to be the
>> same...
>>
>> Anyway, here are my questions:
>>
>> 1) Is it possible to make a GSM network using a C140 motorola as a BTS ?
>>
>> 2) Have you any idea on how to proceed ?
>>
>> Cheers
>>
>> JP
>>
>
>
> --
>
> Edson Aguiar
> +55 11 96994-6674
> +55 19 98105-9095
>
>
>
>
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