Connecting OsmocomBB to OpenBTS

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Harald Welte laforge at
Sun Mar 26 10:36:49 UTC 2017

Hi Usama,

"Osmocom" is a very large umbrella project, of which OsmocomBB is only
one small part.  So when referring to OsmocomBB, please always use the
full name, to avoid confusion. Thanks!

On Sat, Mar 25, 2017 at 07:39:33PM +0500, Usama Muneeb wrote:
> I recently set up OpenBTS which is working perfectly. I can make a test
> call by calling 2600 using an Android phone.

In case you're interested, you can also use the Osmocom stack
(OsmoTRX+OsmoBTS+OsmoNITB) on the network side.

> However when I try "show subscriber" in OSMOCOM, various BTS are listed,
> with their MNC and MCC values but OpenBTS is not listed.

I'm puzzled. Why would "show subscriber" list any BTSs ?!?  Please
provide the actual copy+paste output of what you are referring to.

>From what I can tell, "show subscriber" lists the preferred PLMNs and
the forbidden PLMNs as stored on the SIM card.  This makes sense, as
they are attributes related to the subscriber.  But listing visible BTS
on the subscriber somehow wouldn't even make sense, IMHO.

- Harald Welte <laforge at> 
"Privacy in residential applications is a desirable marketing option."
                                                  (ETSI EN 300 175-7 Ch. A6)

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