On Thu, Jun 04, 2009 at 02:49:21PM +0200, Nordin wrote:
Harald Welte schreef:
On Thu, Jun 04, 2009 at 12:45:36PM +0200, Nordin
wrote:
Hi Roch,
Another thing: if your mobile phone is set to
auto it will always
register on its home network (if available) even if the signal of
your basestation is far stronger.
Can you specify home network?
the network that has issued the sim card. technically: the network with
the MCC and MNC of the IMSI of th SIM.
Yes, that's obvious.
But if my BTS has the same ARFCN, besides the MCC and the MNC, as the
mobile has tuned to, than it's possible that the mobile tries to
register to my BTS.
Also don't forget to make sure the BSIC and possibly even TSC is the same.
That's why I think our gsm-module (gsm for our
servers) automatically
tries to register to my BTS. A nice detail, after 4 times, the
gsm-module stops trying to register to our BTS. I guess, that's an
algorithm (maybe vendor-specific), to search for other available
channels (ARFCNs).
it's very clearly specified in the GSM specs into every possible detail. I
don't remember which one, though.
--
- Harald Welte <laforge(a)gnumonks.org>
http://laforge.gnumonks.org/
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"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)